JP4016812B2

JP4016812B2 - Air conditioner for vehicles

Info

Publication number: JP4016812B2
Application number: JP2002336553A
Authority: JP
Inventors: 梅林　　誠; 稲田　　智洋
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 2002-11-20
Filing date: 2002-11-20
Publication date: 2007-12-05
Anticipated expiration: 2022-11-20
Also published as: JP2004168188A

Description

【０００１】
【発明の属する技術分野】
本発明は、車両用空調装置に関するものである。
【０００２】
【従来の技術】
従来の車両用空調装置では、冷房運転を、急速冷房運転（クールダウン）、定常運転、及び急速冷房運転から定常運転への過渡状態の三段階に区分けするとともに、運転状態に応じて吹出モードを変更制御していた（例えば、特許文献１参照）。
【０００３】
【特許文献１】
特開平１−２８５４１７号公報
【０００４】
【発明が解決しようとする課題】
しかし、特許文献１に記載の発明は、計器盤（インストルメントパネル）やコンソールから空気を吹き出す空調装置であるので、車室内全体（特に、後席側）の温度分布や風速分布に偏りが発生し易く、快適な空調環境を車室内全体に提供することが困難である。
【０００５】
本発明は、上記点に鑑み、第１には、従来と異なる新規な車両用空調装置を提供し、第２には、快適な空調環境を車室内全体に提供することを目的とする。
【０００６】
【課題を解決するための手段】
本発明は、上記目的を達成するために、請求項１に記載の発明では、少なくとも天井部を含む内装壁部から車室内に空気を吹き出す壁面吹出手段と、乗員が着座するシート（４１、４２）から乗員側に空気を吹き出すシート吹出手段と、急速冷房運転を行うか否かを判定する急速運転判定手段と、急速冷房運転判定手段により急速冷房運転を行うものと判定されたときに、両吹出手段から吹き出す空気の吹出量を決定する急速冷房運転時吹出量決定手段と、急速冷房運転判定手段により急速冷房運転を行わないと判定されたときに、前記両吹出手段から吹き出す空気の吹出量を決定する定常運転時吹出量決定手段と、急速冷房運転の進行状態を判定する急速冷房運転進行状態判定手段と、急速冷房運転進行状態判定手段により判定された急速冷房運転の進行状態が、所定状態より初期状態側にあるときに、シート吹出手段から吹き出す空気の吹出量を壁面吹出手段から吹き出す空気の吹出量より大きくする第１急速冷房運転時吹出制御手段とを備えることを特徴とする。
【０００７】
これにより、室内の空調状態に応じて室内に吹き出す空気のモードを制御するので、急速冷房運転時における即効冷房効果と快適性を両立することができ、快適な空調環境を車室内全体に提供することができる。
【０００９】
請求項２に記載の発明では、急速冷房運転進行状態判定手段により判定された急速冷房運転の進行状態が所定状態より後期状態側にあるときには、シート吹出手段から吹き出す空気の吹出量に対する壁面吹出手段から吹き出す空気の吹出量の割合を、初期状態のときに比べて大きくする第２急速冷房運転時吹出制御手段を備えることを特徴とするものである。
【００１０】
請求項３に記載の発明では、定常運転時吹出量決定手段は、急速冷房運転判定手段により急速冷房運転を行わないと判定されたときに、室内に吹き出される総風量を急速冷房運転時に室内に吹き出される総風量より小さくするとともに、壁面吹出手段から吹き出す空気の吹出量をシート吹出手段から吹き出す空気の吹出量より大きくすることを特徴とするものである。
請求項４に記載の発明では、少なくとも天井部を含む内装壁部から車室内に空気を吹き出す壁面吹出手段と、乗員が着座するシート（４１、４２）から乗員側に空気を吹き出すシート吹出手段と、急速冷房運転を行うか否かを判定する急速運転判定手段と、急速冷房運転判定手段により急速冷房運転を行うものと判定されたときに、両吹出手段から吹き出す空気の吹出量を決定する急速冷房運転時吹出量決定手段と、急速冷房運転判定手段により急速冷房運転を行わないと判定されたときに、両吹出手段から吹き出す空気の吹出量を決定する定常運転時吹出量決定手段とを備え、定常運転時吹出量決定手段は、急速冷房運転判定手段により急速冷房運転を行わないと判定されたときに、室内に吹き出される総風量を急速冷房運転時に室内に吹き出される総風量より小さくするとともに、壁面吹出手段から吹き出す空気の吹出量をシート吹出手段から吹き出す空気の吹出量より大きくすることを特徴とするものである。
これにより、請求項１に記載の発明と同様の効果を得ることができる。
【００１１】
請求項５に記載の発明では、計器盤の上面側略全域から空気を吹き出す拡散吹出手段と、計器盤から局所的に空気を吹き出す局所吹出手段と、乗員が着座するシート（４１）から乗員側に空気を吹き出すシート吹出手段と、急速冷房運転を行うか否かを判定する急速運転判定手段と、急速冷房運転判定手段により急速冷房運転を行うものと判定されたときに、３つの吹出手段から吹き出す空気の吹出量を決定する急速冷房運転時吹出量決定手段と、急速冷房運転判定手段により急速冷房運転を行わないと判定されたときに、３つ吹出手段から吹き出す空気の吹出量を決定する定常運転時吹出量決定手段とを備え、定常運転時吹出量決定手段は、急速冷房運転判定手段により急速冷房運転を行わないと判定されたときに、室内に吹き出される総風量を急速冷房運転時に室内に吹き出される総風量より小さくするとともに、拡散吹出手段及び局所吹出手段から吹き出す空気の吹出量をシート吹出手段から吹き出す空気の吹出量より大きくすることを特徴とする。
【００１２】
これにより、室内の空調状態に応じて室内に吹き出す空気のモードを制御するので、急速冷房運転時における即効冷房効果と快適性を両立することができ、快適な空調環境を車室内全体に提供することができる。
【００１３】
請求項６に記載の発明では、計器盤の上面側略全域から空気を吹き出す拡散吹出手段と、計器盤から局所的に空気を吹き出す局所吹出手段と、乗員が着座するシート（４１）から乗員側に空気を吹き出すシート吹出手段と、急速冷房運転を行うか否かを判定する急速運転判定手段と、急速冷房運転判定手段により急速冷房運転を行うものと判定されたときに、３つの吹出手段から吹き出す空気の吹出量を決定する急速冷房運転時吹出量決定手段と、急速冷房運転判定手段により急速冷房運転を行わないと判定されたときに、３つ吹出手段から吹き出す空気の吹出量を決定する定常運転時吹出量決定手段と、急速冷房運転の進行状態を判定する急速冷房運転進行状態判定手段と、急速冷房運転進行状態判定手段により判定された急速冷房運転の進行状態が、所定状態より初期状態側にあるときに、拡散吹出手段及び局所吹出手段から吹き出す空気の吹出量をシート吹出手段から吹き出す空気の吹出量より大きくする第３急速冷房運転時吹出制御手段とを備えることを特徴とするものである。
これにより請求項５に記載の発明と同様の効果を得ることができる。
【００１４】
請求項７に記載の発明では、急速冷房運転の進行状態が、所定状態より初期状態側にあるときに、局所吹出手段から吹き出す空気の吹出量を拡散吹出手段から吹き出す空気の吹出量より大きくする第４急速冷房運転時吹出制御手段とを備えることを特徴とするものである。
【００１５】
請求項８に記載の発明では、急速冷房運転進行状態判定手段により判定された急速冷房運転の進行状態が所定状態より後期状態側にあるときには、シート吹出手段から吹き出す空気の吹出量に対する拡散吹出手段及び局所吹出手段から吹き出す空気の吹出量の割合を、初期状態のときに比べて大きくする第５急速冷房運転時吹出制御手段を備えることを特徴とするものである。
【００１６】
請求項９に記載の発明では、急速冷房運転進行状態判定手段により判定された急速冷房運転の進行状態が所定状態より後期状態側にあるときには、局所吹出手段から吹き出す空気の吹出量に対する拡散吹出手段から吹き出す空気の吹出量の割合を、初期状態のときに比べて大きくする第６急速冷房運転時吹出制御手段を備えることを特徴とするものである。
【００１７】
請求項１０に記載の発明では、定常運転時吹出量決定手段は、急速冷房運転判定手段により急速冷房運転を行わないと判定されたときに、室内に吹き出される総風量を急速冷房運転時に室内に吹き出される総風量より小さくするとともに、拡散吹出手段及び局所吹出手段から吹き出す空気の吹出量をシート吹出手段から吹き出す空気の吹出量より大きくすることを特徴とするものである。
【００１８】
請求項１１に記載の発明では、定常運転時吹出量決定手段は、急速冷房運転判定手段により急速冷房運転を行わないと判定されたときに、拡散吹出手段から吹き出す空気の吹出量を局所吹出手段から吹き出す空気の吹出量より大きくすることを特徴とするものである。
【００１９】
因みに、上記各手段の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示す一例である。
【００２０】
【発明の実施の形態】
（第１実施形態）
図１〜図３は本実施形態に係る車両用空調装置の空気吹出状態を示す図であり、図４は本実施形態に係る車両用空調装置の特徴的制御を示す図であり、図５は本実施形態に係る車両用空調装置の模式図であり、図６は本実施形態に係る車両用空調装置の制御系を示す模式図である。なお、図５、６が模式的な図であり、実際の形状及び構造を示すものではないことは言うまでもない。
【００２１】
本実施形態に係る車両用空調装置は、図５に示すように、車室内前方側に搭載された前席側空調ユニット１０、車両後方側のトランクルームに搭載された後席側空調ユニット２０、及びエンジンルームに搭載された室外ユニット３０等から構成されたものである。以下、前席側空調ユニット１０、後席側空調ユニット２０、室外ユニット３０の順にその概略構成を述べる。
【００２２】
１．前席側空調ユニット１０
空調ケーシング１１は、主に前席側に吹き出される空気が流れるダクト手段であり、その空気流れ上流側には、空調ケーシング１１内に導入する室内空気量と室外空気量とを調節する内外気導入ユニット１２、空調ケーシング１１内に導入された空気中の塵埃等を除去するフィルタ１３、及び送風用のファン１４等が設けられている
【００２３】
また、空調ケーシング１１の最下流側には、窓ガラスに向けて吹き出される空気をデフロスタ吹出口に供給するデフ供給口１５ａ、前席側車室内上方側に向けて吹き出される空気をフェイス吹出口に供給するフェイス供給口１５ｂ、前席側車室内下方側に向けて吹き出される空気をフット吹出口に供給するフット供給口１５ｃ、前席側の乗員着座用のシート４１（図１参照）から乗員側に吹き出される空気をシート４１に供給するシート供給口１５ｄ、及び前席側の天井から室内に吹き出される空気を供給する天井供給口１５ｅが設けられている。
【００２４】
そして、各供給口１５ａ〜１５ｅの空気流れ上流側には、各供給口１５ａ〜１５ｅに供給される空気量を調節するとともに、室内に吹き出す空気の吹出モードを切り替える吹出モードドア１６ａ〜１６ｅが設けられている。なお、図５では、各供給口１５ａ〜１５ｅ毎に独立して吹出モードドア１６ａ〜１６ｅが設けられているが、本発明はこれに限定されるものではないことは言うまでもない。
【００２５】
また、ファン１４の空気流れ下流側であって、吹出モードドア１６ａ〜１６ｅの空気流れ上流側には、空調ケーシング１１内を流れる空気を冷却する前席用クーラ１７、前席用クーラ１７の空気流れ下流側に配置されて空気を加熱する前席用ヒータ１８、及び前席用ヒータ１８を通過した温風と前席用ヒータ１８を迂回して流れる冷風量とを調節することにより室内に吹き出す空気の温度を調節するエアミックスドア１９等が収納されている。
【００２６】
なお、前席用クーラ１７は、冷媒を蒸発させることより吸熱能力を発揮する冷却用熱交換器であり、周知の蒸気圧縮式冷凍機の低圧側熱交換器である。また、前席用ヒータ１８は、エンジン冷却水等の車両で発生した廃熱を熱源として空気を加熱する加熱用熱交換器である。
【００２７】
また、シート供給口１５ｄから吹き出す空気は、床に配設されたダクトを介してシート４１に供給され、天井供給口１５ｅから吹き出す空気は、フロント窓ガラスの左右端に位置する、いわゆるＡピラー内に配置されたダクトを介して天井に設けられ多数個の吹出口に導かれる。
【００２８】
２．後席側空調ユニット２０
後席側空調ユニット２０の構成は、内外気導入ユニット、デフ供給口、フェイス供給口、及びフット供給口が設けられていない点を除けば、前席側空調ユニット１０の構成と略同一である。
【００２９】
すなわち、空調ケーシング２１の空気流れ上流側から順に、フィルタ２３、ファン２４、後席用クーラ２７、エアミックスドア２９、後席用ヒータ２８、並びに後席側の乗員着座用のシート４２（図１参照）から乗員側に吹き出される空気をシート４２に供給するシート供給口２５ｄ、後席側の天井から室内に吹き出される空気を供給する天井供給口２５ｅ、及び各供給口２５ｄ、２５ｅに供給される空気量を調節するとともに、室内に吹き出す空気の吹出モードを切り替える吹出モードドア２６ｄ、２６ｅ等からなるものである。
【００３０】
なお、後席用クーラ２７も前席用クーラ１７と同様に蒸気圧縮式冷凍機の低圧側熱交換器であり、後席用ヒータ２８も前席用ヒータ１８と同様に廃熱を熱源として空気を加熱する加熱用熱交換器である。
【００３１】
また、シート供給口２５ｄから吹き出す空気は、後席シートのシートバック側からシート４２に供給され、天井供給口２５ｅから吹き出す空気は、リア窓ガラスの左右端に位置する、いわゆるＣピラー内に配置されたダクトを介して天井に設けられ多数個の吹出口に導かれる。
【００３２】
３．室外ユニット３０等
圧縮機３１は冷媒を吸入圧縮するもので、本実施形態では、走行用エンジンから駆動力を得て稼動するとともに、その稼働率（吐出流量）は、走行用エンジンの動力を圧縮機３１に伝達する電磁クラッチの断続、又は圧縮機３１として可変容量型圧縮機を用い、その吐出容量を制御することにより制御される。
【００３３】
凝縮器３２は圧縮機３１から吐出した冷媒と室外空気とを熱交換して冷媒を冷却する高圧側熱交換器であり、本実施形態では、冷媒をフロンとして圧縮機３１の吐出圧、つまり高圧側冷媒圧力を冷媒の臨界圧力以下としているので、冷媒は凝縮器３２内で凝縮しながらそのエンタルピを低下させる。
【００３４】
レシーバ３３は蒸気圧縮式冷凍機内を循環する冷媒を気相冷媒と液相冷媒とに分離して余剰冷媒を液相冷媒として蓄える気液分離器であり、本実施形態では、凝縮器３２の冷媒流出口側の冷媒回路に設けられて分離された液相冷媒を両クーラ１７、２７に供給する。
【００３５】
減圧器３４ａ、３４ｂは、クーラ１７、２７に流入する冷媒を減圧する減圧手段であり、本実施形態では、圧縮機３１に吸入される冷媒の過熱度が所定値となるようにその絞り開度が制御される、いわゆる温度式膨脹弁が採用されている。
【００３６】
なお、電磁弁３５ａ、３５ｂは、クーラ１７、２７に冷媒を供給するか否か、つまりクーラ１７、２７にて冷凍能力を発揮させるか否かを制御するための制御手段である。
【００３７】
ところで、送風機１４、２４、エアミックスドア１９、２９、吹出モードドア１６ａ〜１６ｅ、２６ｄ、２６ｅ等は、図６に示すように、電子制御装置５０により制御されており、この電子制御装置５０には、車室内空気温度、車室外空気温度、車室内に降り注がれる日射量、ヒータ１８、２８に供給されるエンジン冷却水の温度等の空調制御に必要なパラメータを検出する空調センサ５１の検出値、前席用コントロールユニット５２に入力された前席側で希望する空調温度、及び後席用コントロールユニット５３に入力された後席側で希望する空調温度等が入力されている。
【００３８】
なお、上述の構成説明から明らかなように、天井供給口１５ｅ、２５ｅ等が特許請求の範囲に記載された「壁面吹出手段」に相当し、シート供給口１５ｄ、２５ｄ等が特許請求の範囲に記載された「シート吹出手段」に相当する。
【００３９】
次に、本実施形態に係る空調装置の特徴的作動を述べる。
【００４０】
図４に示すフローチャートは、本実施形態に係る空調装置の特徴を強調した制御作動を示すもので、その特徴部は、前席用空調ユニット１０及び後席側空調ユニット２０と同じであるので、後席側空調ユニット２０の制御を例に本実施形態に係る空調装置の特徴的作動を述べる。
【００４１】
本実施形態に係る空調装置の特徴的作動は、クールダウン運転、つまり急速冷房運転を複数の段階（例えば、初期段階と後期段階と）に区分し、初期段階においては、ファン２４の送風量を最大とした状態でシート４２から吹き出す風量を天井から吹き出す風量より大きくし、後期段階においては、シート４２から吹き出す風量に対する天井から吹き出す風量の割合を初期段階よりも大きくして、シート４２から吹き出す風量と天井から吹き出す風量と略同等とする。
【００４２】
そして、クールダウン運転が終了して定常運転状態となったときには、クールダウン時に比べてファン２４の送風量を低下させるとともに、天井から吹き出す風量をシート４２から吹き出す風量より大きくするものである。
【００４３】
具体的には、図４に示すように、室内空気温度と設定温度との温度差ΔＴ、又は室内空気温度と目標吹出温度ＴＡＯとの温度差ΔＴを算出し、温度差ΔＴが第１所定温度差Ｔ１以上であるときには、クールダウン運転の初期段階にあるものとみなして、ファン２４の送風量を最大とした状態でシート４２から吹き出す風量を天井から吹き出す風量より大きくする（Ｓ１〜Ｓ４）。
【００４４】
なお、本実施形態では、シート４２から吹き出す風量をファン２４の送風量の約７０％以上、天井から吹き出す風量ファン２４の送風量の約３０％以下としている（図１参照）。
【００４５】
因みに、目標吹出温度ＴＡＯは、設定温度及び空調センサ５１の検出値等に基づいて決定される制御目標空気温度であり、通常、目標吹出温度ＴＡＯが小さくなるほど、電子制御装置５０は大きな冷房能力を必要としているものと判断して、ファン２４の送風量を増大させて行くとともに、エアミックスドア２９の開度を調節してヒータ２８を通過する風量を低下させる。
【００４６】
そして、クールダウン運転の進行状態が所定状態より後期段階側にあるとき、つまり温度差ΔＴが第１所定温度差Ｔ１未満であって、第１所定温度差Ｔ１より小さい第２所定温度差Ｔ２より大きいときには、シート４２から吹き出す空気の吹出量に対する天井から吹き出す空気の吹出量の割合を、初期段階のときに比べて大きくする（Ｓ５〜Ｓ７）。
【００４７】
具体的には、本実施形態では、シート４２から吹き出す風量をファン２４の送風量の約４０％以上、天井から吹き出す風量ファン２４の送風量の約６０％以下としている。因みに、シート４２から吹き出す風量をファン２４の送風量の約５０％以上、天井から吹き出す風量ファン２４の送風量の約５０％以下としてもよいことは言うまでもない。
【００４８】
なお、ファン２４の送風量は、冷房運転時にあっては、目標吹出温度ＴＡＯの上昇とともに減少するので、ファン２４の送風量は、約中間風量となっている（Ｓ６）。
【００４９】
そして、温度差ΔＴが第２所定温度差Ｔ２より小さい第３所定温度差Ｔ３より小さくなったときには、クールダウン運転が終了して定常運転状態となったものとみなして、クールダウン時に比べてファン２４の送風量を低下させるとともに、シート４２から吹き出す空気の吹出量に対する天井から吹き出す空気の吹出量の割合を後期段階のときに比べて大きくして、天井から吹き出す風量をシート４２から吹き出す風量より大きくする（Ｓ８〜Ｓ１０)。
【００５０】
次に、本実施形態の作用効果を述べる。
【００５１】
本実施形態では、車室内の空調状態に応じて室内に吹き出す空気のモードを制御するので、クールダウン運転時における即効冷房効果と快適性を両立することができ、快適な空調環境を車室内全体に提供することができる。
【００５２】
（第２実施形態）
本実施形態は、前席用空調ユニット１０に関するもので、本実施形態では、計器盤１（図１）の上面側略全域から空気を吹き出す拡散吹出手段をなす拡散吹出口（ディフュージョン吹出口）から吹き出す空気量、フェイス吹出口等の計器盤１から局所的に空気を吹き出す局所吹出手段から吹き出す空気量、及びシート４１から乗員側に空気を吹き出す空気量の制御に関するものである。以下、吹出空気の制御について述べる。
【００５３】
１．クールダウン初期段階
拡散吹出口及びフェイス吹出口から吹き出す空気の吹出量をシート４１から吹き出す空気の吹出量より大きくするとともに、フェイス吹出口から吹き出す空気の吹出量を拡散吹出口から吹き出す空気の吹出量より大きくする。
【００５４】
具体的には、拡散吹出口及びフェイス吹出口から吹き出す空気の吹出量をファン１４にて送風される送風量の約７０％以上とし、シート４１から吹き出す空気の吹出量をファン１４にて送風される送風量の約３０％以下とし、フェイス吹出口から吹き出す空気の吹出量：拡散吹出口から吹き出す空気の吹出量を約７：３とするものである。
【００５５】
２．クールダウン後期段階
拡散吹出口及びフェイス吹出口から吹き出す空気の吹出量に対するシート４１から吹き出す空気の吹出量の割合を初期状態のときに比べて大きくするとともに、フェイス吹出口から吹き出す空気の吹出量に対する拡散吹出口から吹き出す空気の吹出量の割合を初期状態のときに比べて大きくする。
【００５６】
具体的には、拡散吹出口及びフェイス吹出口から吹き出す空気の吹出量をファン１４にて送風される送風量の約５０％以上とし、シート４１から吹き出す空気の吹出量をファン１４にて送風される送風量の約５０％以下とし、フェイス吹出口から吹き出す空気の吹出量：拡散吹出口から吹き出す空気の吹出量を約５：５とするものである。
【００５７】
３．定常運転
室内に吹き出される総風量をクールダウン運転時に室内に吹き出される総風量より小さくした状態で、拡散吹出口及びフェイス吹出口から吹き出す空気の吹出量をシート４１から吹き出す空気の吹出量より大きくするとともに、拡散吹出口から吹き出す空気の吹出量をフェイス吹出口から吹き出す空気の吹出量より大きくする。
【００５８】
次に、本実施形態の作用効果を述べる。
【００５９】
本実施形態では、車室内の空調状態に応じて室内に吹き出す空気のモードを制御するので、クールダウン運転時における即効冷房効果と快適性を両立することができ、快適な空調環境を車室内全体に提供することができる。
【００６０】
（その他の実施形態）
上述の実施形態では、天井の略全域から空気が散布されるように空気が吹き出すものであったが、本発明はこれに限定されるものではなく、例えば乗員（シート）に向けて局所的に空気を吹き出すようにしてもよい。
【００６１】
また、上述の実施形態では、特許請求の範囲に記載された制御に関する手段を電子制御装置５０が行う制御ステップにより実現したが、本発明はこれに限定されるものではない。
【図面の簡単な説明】
【図１】本発明の実施形態に係る車両用空調装置の空気吹出状態を示す図である。
【図２】本発明の実施形態に係る車両用空調装置の空気吹出状態を示す図である。
【図３】本発明の実施形態に係る車両用空調装置の空気吹出状態を示す図である。
【図４】本発明の実施形態に係る車両用空調装置の特徴的制御を示すフローチャートである。
【図５】本発明の実施形態に係る車両用空調装置の模式図である。
【図６】本発明の実施形態に係る車両用空調装置の制御系を示す模式図である。
【符号の説明】
１１、２１…空調ケーシング、
１５ａ〜１５ｅ、２５ｄ、２５ｅ…空気供給口、
１６ａ〜１６ｅ、２６ｄ、２６ｅ…吹出モードドア、
１７、２７…クーラ、１８、２８…ヒータ、１９、２９…エアミックスドア。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle air conditioner.
[0002]
[Prior art]
In the conventional vehicle air conditioner, the cooling operation is divided into three stages, that is, a rapid cooling operation (cool down), a steady operation, and a transient state from the rapid cooling operation to the steady operation, and the blowing mode is set according to the operation state. Change control was performed (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
JP-A-1-285417
[Problems to be solved by the invention]
However, since the invention described in Patent Document 1 is an air conditioner that blows out air from an instrument panel (instrument panel) or console, there is a bias in the temperature distribution and wind speed distribution in the entire vehicle interior (particularly the rear seat side). It is difficult to provide a comfortable air conditioning environment throughout the vehicle interior.
[0005]
SUMMARY OF THE INVENTION In view of the above, the present invention firstly provides a novel vehicle air conditioner that differs from the conventional one, and secondly, it aims to provide a comfortable air conditioning environment throughout the vehicle interior.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, in the first aspect of the present invention, wall blowing means for blowing air from the interior wall portion including at least the ceiling portion into the vehicle interior, and a seat (41, 42) on which a passenger sits. ) To blow out air to the occupant side, rapid operation determination means for determining whether or not to perform rapid cooling operation, and rapid cooling operation determination means to determine whether rapid cooling operation is to be performed. The amount of air blown out from both of the blowing means when it is determined by the rapid cooling operation blowing amount determining means that determines the amount of air blown out from the blowing means and the rapid cooling operation determining means that the rapid cooling operation is not performed. a steady operation during blowing amount determining means for determining a, a rapid cooling operation progress state determining means for determining the progress of the rapid cooling operation, rapid judged by rapid cooling operation progress state determining means Progress tufts operation, when it is in the initial state side than the predetermined state, the first fast-cooling operation time blowout control unit to be larger than blowing amount of air blown out of the blowing amount of air blown out from the sheet outlet means from the wall outlet means It is characterized by providing.
[0007]
As a result, the mode of the air blown into the room is controlled according to the air conditioning condition in the room, so that both the immediate cooling effect and the comfort during the rapid cooling operation can be achieved, and a comfortable air conditioning environment is provided for the entire vehicle interior. be able to.
[0009]
According to the second aspect of the present invention, when the progressing state of the rapid cooling operation determined by the rapid cooling operation progress state determining unit is on the later state side than the predetermined state, the wall surface blowing unit with respect to the amount of air blown from the seat blowing unit It is characterized by comprising a second rapid cooling operation blowing control means for increasing the ratio of the amount of air blown out from the air in the initial state.
[0010]
In the invention according to claim 3 , the steady-state blowing amount determining means determines the total air volume blown into the room during the rapid cooling operation when the rapid cooling operation determining means determines that the rapid cooling operation is not performed. And the air blowing amount blown from the wall blowing means is larger than the air blowing quantity blown from the sheet blowing means.
In the invention according to claim 4, wall surface blowing means for blowing air from the interior wall portion including at least the ceiling portion into the vehicle interior, and sheet blowing means for blowing air from the seats (41, 42) on which the occupant is seated to the occupant side A rapid operation determining means for determining whether or not to perform rapid cooling operation, and a rapid determining means for determining an amount of air blown from both the blowing means when the rapid cooling operation determining means determines that the rapid cooling operation is to be performed. A cooling operation time blowing amount determination means and a steady operation blowing amount determination means for determining the amount of air blown out from both blowing means when it is determined by the rapid cooling operation determination means that rapid cooling operation is not performed. The steady operation blowing amount determination means blows the total air volume blown into the room during the rapid cooling operation when the rapid cooling operation determination means determines that the rapid cooling operation is not performed. While smaller than the total air volume issued, is characterized in that greater than blowing amount of air blown out of the blowing amount of air blown out from the wall outlet means from the sheet outlet means.
Thereby, the same effect as that of the invention described in claim 1 can be obtained.
[0011]
In the invention according to claim 5, the diffusion blowing means for blowing air from substantially the entire upper surface side of the instrument panel, the local blowing means for blowing air locally from the instrument panel, and the occupant side from the seat (41) on which the occupant sits When it is determined that the rapid cooling operation is performed by the rapid cooling operation determining unit and the rapid cooling operation determining unit that determines whether or not to perform the rapid cooling operation, the three blowing units The amount of air blown out from the three blowing means is determined when it is determined that the rapid cooling operation is not performed by the rapid cooling operation blowing amount determining means for determining the amount of air blown out and the rapid cooling operation determining means. and a blowing amount determining means steady operation, blowing amount determining means steady operation, when it is determined not to perform rapid cooling operation by rapid cooling operation determination means, total blown out into the room While smaller than the total amount of wind blown out into the room the amount during rapid cooling operation, characterized by greater than blowing amount of air blown out of the blowing amount of air blown out from the spreading blowing means and topical outlet means from the sheet outlet means.
[0012]
As a result, the mode of the air blown into the room is controlled according to the air conditioning condition in the room, so that both the immediate cooling effect and the comfort during the rapid cooling operation can be achieved, and a comfortable air conditioning environment is provided for the entire vehicle interior. be able to.
[0013]
In the invention according to claim 6, the diffusion blowing means for blowing air from substantially the entire upper surface side of the instrument panel, the local blowing means for blowing air locally from the instrument panel, and the occupant side from the seat (41) on which the occupant sits When it is determined that the rapid cooling operation is performed by the rapid cooling operation determining unit and the rapid cooling operation determining unit that determines whether or not to perform the rapid cooling operation, the three blowing units The amount of air blown out from the three blowing means is determined when it is determined that the rapid cooling operation is not performed by the rapid cooling operation blowing amount determining means for determining the amount of air blown out and the rapid cooling operation determining means. and blowing amount determination means during a steady operation, the rapid cooling operation progress state determining means for determining the progress of the rapid cooling operation, the rapid cooling operation determined by the rapid cooling operation progress state determining means Blowing control means for third rapid cooling operation that makes the amount of air blown from the diffusion blowing means and the local blowing means larger than the amount of air blown from the sheet blowing means when the row state is closer to the initial state than the predetermined state Are provided.
Thus, the same effect as that of the fifth aspect can be obtained.
[0014]
In the invention according to claim 7, when the progressing state of the rapid cooling operation is on the initial state side from the predetermined state, the amount of air blown from the local blowing means is made larger than the amount of air blown from the diffusion blowing means. And a fourth rapid cooling operation blowing control means.
[0015]
In the invention according to claim 8, when the progressing state of the rapid cooling operation determined by the rapid cooling operation progress state determining unit is on the later state side than the predetermined state, the diffusion blowing unit for the amount of air blown out from the sheet blowing unit And a fifth rapid cooling operation blowing control means for increasing the ratio of the amount of air blown from the local blowing means as compared with that in the initial state.
[0016]
According to the ninth aspect of the present invention, when the progressing state of the rapid cooling operation determined by the rapid cooling operation progress state determining unit is on the later state side than the predetermined state, the diffusion blowing unit for the amount of air blown from the local blowing unit It is characterized by comprising a sixth rapid cooling operation blowing control means for increasing the proportion of the amount of air blown from the air in comparison with the initial state.
[0017]
In the invention according to claim 10, when the steady-state blowing amount determining means determines that the rapid cooling operation determining means does not perform the rapid cooling operation, the total air volume blown into the room is set to the room during the rapid cooling operation. And the amount of air blown from the diffusion blowing means and the local blowing means is made larger than the amount of air blown from the sheet blowing means.
[0018]
In the invention according to claim 11, the steady-state blowing amount determining means determines the amount of air blown from the diffusion blowing means when the rapid cooling operation determining means determines not to perform the rapid cooling operation. It is characterized by being larger than the amount of air blown out from.
[0019]
Incidentally, the reference numerals in parentheses of each means described above are an example showing the correspondence with the specific means described in the embodiments described later.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
1-3 is a figure which shows the air blowing state of the vehicle air conditioner which concerns on this embodiment, FIG. 4 is a figure which shows the characteristic control of the vehicle air conditioner which concerns on this embodiment, FIG. FIG. 6 is a schematic diagram of a vehicle air conditioner according to the present embodiment, and FIG. 6 is a schematic diagram illustrating a control system of the vehicle air conditioner according to the present embodiment. Note that FIGS. 5 and 6 are schematic views and do not show actual shapes and structures.
[0021]
As shown in FIG. 5, the vehicle air conditioner according to this embodiment includes a front seat air conditioning unit 10 mounted on the front side of the vehicle interior, a rear seat air conditioning unit 20 mounted on the trunk room on the vehicle rear side, and It is comprised from the outdoor unit 30 grade | etc., Mounted in the engine room. Hereinafter, the schematic configuration will be described in the order of the front seat air conditioning unit 10, the rear seat air conditioning unit 20, and the outdoor unit 30.
[0022]
1. Front seat air conditioning unit 10
Air conditioning casing 11 mainly Ri duct means der air flows blown out in the front seat, on its upstream air side, and out to adjust the room air volume of the outdoor air quantity to be introduced into the air conditioning casing 11 An air introduction unit 12, a filter 13 for removing dust and the like in the air introduced into the air conditioning casing 11, and a fan 14 for blowing are provided.
Further, on the most downstream side of the air conditioning casing 11, a differential supply port 15a that supplies air blown toward the window glass to the defroster blowout port, and air blown toward the upper side of the front seat side vehicle interior is blown to the face. Face supply port 15b to be supplied to the exit, foot supply port 15c to supply air blown toward the lower side of the passenger compartment on the front seat side to the foot outlet, and a passenger seat 41 on the front seat side (see FIG. 1) A seat supply port 15d for supplying air blown from the passenger side to the occupant side to the seat 41 and a ceiling supply port 15e for supplying air blown into the room from the ceiling on the front seat side are provided.
[0024]
Then, the air flow upstream side of the supply ports 15a to 15e, as well as adjust the amount of air supplied to the respective supply ports 15a to 15e, the outlet mode doors 16a~16e switching the outlet mode of air blown into the passenger compartment Is provided. In addition, in FIG. 5, although the blowing mode doors 16a-16e are provided independently for each supply port 15a-15e, it cannot be overemphasized that this invention is not limited to this.
[0025]
Further, on the air flow downstream side of the fan 14 and on the air flow upstream side of the blowing mode doors 16 a to 16 e, the air in the front seat cooler 17 and the air in the front seat cooler 17 that cools the air flowing in the air conditioning casing 11. The front seat heater 18 that is disposed downstream of the flow and heats the air, and the warm air that has passed through the front seat heater 18 and the amount of cool air that flows around the front seat heater 18 are adjusted to blow out into the room. The air mix door 19 etc. which adjust the temperature of air are accommodated.
[0026]
The front seat cooler 17 is a cooling heat exchanger that exhibits endothermic capacity by evaporating the refrigerant, and is a well-known low pressure side heat exchanger of a vapor compression refrigerator. The front seat heater 18 is a heating heat exchanger that heats air using waste heat generated in a vehicle such as engine cooling water as a heat source.
[0027]
The air blown from the sheet supply port 15d is supplied to the sheet 41 through a duct disposed on the floor, and the air blown from the ceiling supply port 15e is located in the so-called A pillar located at the left and right ends of the front window glass. It is provided on the ceiling through ducts arranged in the bay and led to a number of outlets.
[0028]
2. Rear seat air conditioning unit 20
The configuration of the rear seat air conditioning unit 20 is substantially the same as the configuration of the front seat air conditioning unit 10 except that the inside / outside air introduction unit, the differential supply port, the face supply port, and the foot supply port are not provided. .
[0029]
That is, the filter 23, the fan 24, the rear seat cooler 27, the air mix door 29, the rear seat heater 28, and the passenger seat 42 on the rear seat side in order from the air flow upstream side of the air conditioning casing 21 (FIG. 1). The air supply to the occupant side is supplied to the seat 42, the ceiling supply port 25e to supply the air blown indoors from the ceiling on the rear seat side, and the supply ports 25d and 25e. as well as the air quantity adjusting section being, blow mode doors 26d to switch the blowing mode of air blown into the passenger compartment, is made of 26e and the like.
[0030]
The rear seat cooler 27 is also a low pressure side heat exchanger of a vapor compression refrigerator similar to the front seat cooler 17, and the rear seat heater 28 is air using waste heat as a heat source in the same manner as the front seat heater 18. It is a heat exchanger for heating which heats.
[0031]
The air blown out from the seat supply port 25d is supplied to the seat 42 from the seat back side of the rear seat, and the air blown out from the ceiling supply port 25e is arranged in a so-called C pillar located at the left and right ends of the rear window glass. It is provided on the ceiling via the ducts and is led to a large number of outlets.
[0032]
3. The compressor 31 such as the outdoor unit 30 sucks and compresses refrigerant. In this embodiment, the compressor 31 operates by obtaining driving force from the traveling engine, and the operation rate (discharge flow rate) compresses the power of the traveling engine. Control is performed by controlling the discharge capacity of the electromagnetic clutch transmitted to the machine 31 or by using a variable displacement compressor as the compressor 31.
[0033]
The condenser 32 is a high-pressure side heat exchanger that cools the refrigerant by exchanging heat between the refrigerant discharged from the compressor 31 and the outdoor air. In this embodiment, the refrigerant 32 is used as a refrigerant to discharge pressure of the compressor 31, that is, high pressure. Since the side refrigerant pressure is set below the critical pressure of the refrigerant, the refrigerant reduces its enthalpy while condensing in the condenser 32.
[0034]
The receiver 33 is a gas-liquid separator that separates the refrigerant circulating in the vapor compression refrigerator into a gas-phase refrigerant and a liquid-phase refrigerant and stores excess refrigerant as the liquid-phase refrigerant. In this embodiment, the refrigerant of the condenser 32 is used. The liquid phase refrigerant provided and separated in the refrigerant circuit on the outlet side is supplied to both coolers 17 and 27.
[0035]
The decompressors 34a and 34b are decompressing means for decompressing the refrigerant flowing into the coolers 17 and 27. In this embodiment, the throttle opening degree of the refrigerant so that the superheat degree of the refrigerant sucked into the compressor 31 becomes a predetermined value. A so-called temperature-type expansion valve is used.
[0036]
The electromagnetic valves 35a and 35b are control means for controlling whether or not the refrigerant is supplied to the coolers 17 and 27, that is, whether or not the coolers 17 and 27 exhibit the refrigerating capacity.
[0037]
By the way, the blowers 14 and 24, the air mix doors 19 and 29, the blowing mode doors 16a to 16e, 26d, and 26e are controlled by the electronic control unit 50 as shown in FIG. The air conditioning sensor 51 detects parameters necessary for air conditioning control, such as the air temperature in the vehicle interior, the air temperature outside the vehicle interior, the amount of solar radiation poured into the vehicle interior, and the temperature of the engine coolant supplied to the heaters 18 and 28. The detected value, the desired air conditioning temperature on the front seat side input to the front seat control unit 52, the desired air conditioning temperature on the rear seat side input to the rear seat control unit 53, and the like are input.
[0038]
As is clear from the above description of the configuration, the ceiling supply ports 15e, 25e and the like correspond to the “wall surface blowing means” described in the claims, and the sheet supply ports 15d and 25d and the like are in the claims. It corresponds to the described “sheet blowing means”.
[0039]
Next, the characteristic operation of the air conditioner according to this embodiment will be described.
[0040]
The flowchart shown in FIG. 4 shows the control operation that emphasizes the features of the air conditioner according to the present embodiment, and the features are the same as the front seat air conditioning unit 10 and the rear seat air conditioning unit 20, The characteristic operation of the air conditioner according to the present embodiment will be described taking control of the rear seat air conditioning unit 20 as an example.
[0041]
The characteristic operation of the air conditioner according to the present embodiment is that the cool-down operation, that is, the rapid cooling operation is divided into a plurality of stages (for example, an initial stage and a late stage). The amount of air blown from the seat 42 in the maximum state is made larger than the amount of air blown from the ceiling, and in the latter stage, the ratio of the amount of air blown from the ceiling to the amount of air blown from the sheet 42 is made larger than in the initial stage, And the air volume blown from the ceiling.
[0042]
Then, when the cool-down operation is finished and a steady operation state is reached, the air flow rate of the fan 24 is reduced as compared with the time of the cool-down operation, and the air volume blown from the ceiling is made larger than the air flow blown from the seat 42.
[0043]
Specifically, as shown in FIG. 4, a temperature difference ΔT between the indoor air temperature and the set temperature or a temperature difference ΔT between the indoor air temperature and the target outlet temperature TAO is calculated, and the temperature difference ΔT is a first predetermined temperature. When the difference is equal to or greater than T1, it is assumed that the cool-down operation is in the initial stage, and the amount of air blown from the seat 42 is made larger than the amount of air blown from the ceiling in a state where the amount of air blown by the fan 24 is maximized (S1 to S4).
[0044]
In the present embodiment, the amount of air blown from the seat 42 is set to about 70% or more of the amount of air blown from the fan 24 and about 30% or less of the amount of air blown from the ceiling 24 (see FIG. 1).
[0045]
Incidentally, the target blowing temperature TAO is a control target air temperature that is determined based on the set temperature, the detected value of the air conditioning sensor 51, and the like. Normally, as the target blowing temperature TAO decreases, the electronic control unit 50 has a larger cooling capacity. It judges that it is necessary, and while increasing the ventilation volume of the fan 24, the opening degree of the air mix door 29 is adjusted and the air volume which passes the heater 28 is reduced.
[0046]
Then, when the progress state of the cool-down operation is on the later stage side than the predetermined state, that is, the temperature difference ΔT is less than the first predetermined temperature difference T1 and is smaller than the first predetermined temperature difference T1. When it is larger, the ratio of the amount of air blown from the ceiling to the amount of air blown from the seat 42 is made larger than in the initial stage (S5 to S7).
[0047]
Specifically, in the present embodiment, the amount of air blown from the seat 42 is set to about 40% or more of the blown amount of the fan 24 and about 60% or less of the blown amount of the air amount fan 24 blown from the ceiling. Incidentally, it goes without saying that the amount of air blown from the seat 42 may be about 50% or more of the amount of air blown from the fan 24 and about 50% or less of the amount of air blown from the ceiling 24.
[0048]
In addition, since the air flow rate of the fan 24 decreases with the increase in the target blow temperature TAO during the cooling operation, the air flow rate of the fan 24 is about an intermediate air amount (S6).
[0049]
When the temperature difference ΔT becomes smaller than the third predetermined temperature difference T3, which is smaller than the second predetermined temperature difference T2, it is considered that the cool-down operation has ended and the steady operation state has been reached, and the fan is compared with the cool-down operation. 24, the ratio of the amount of air blown from the ceiling to the amount of air blown from the seat 42 is increased as compared with the latter stage, and the amount of air blown from the ceiling is larger than the amount of air blown from the seat 42. Increase (S8-S10).
[0050]
Next, the effect of this embodiment is described.
[0051]
In this embodiment, since the mode of the air blown into the room is controlled according to the air conditioning state in the vehicle interior, it is possible to achieve both an immediate cooling effect and comfort during cool-down operation, and a comfortable air conditioning environment throughout the vehicle interior Can be provided.
[0052]
(Second Embodiment)
The present embodiment relates to a front seat air conditioning unit 10, and in this embodiment, from a diffusion outlet (diffusion outlet) that constitutes a diffusion outlet that blows air from substantially the entire upper surface of the instrument panel 1 (FIG. 1). The present invention relates to the control of the amount of air blown out, the amount of air blown out from the local blowing means that blows out air locally from the instrument panel 1 such as the face outlet, and the amount of air blown out from the seat 41 toward the passenger. Hereinafter, control of blown air will be described.
[0053]
1. In the cool-down initial stage, the amount of air blown out from the diffusion blower outlet and the face blower outlet is made larger than the amount of air blown out from the seat 41, and the amount of air blown out from the face blower outlet is made to be blown out from the diffusion blower outlet. Make it bigger.
[0054]
Specifically, the amount of air blown from the diffusion blower outlet and the face blower outlet is set to about 70% or more of the blown amount blown by the fan 14, and the blown amount of air blown from the seat 41 is blown by the fan 14. The amount of air blown from the face air outlet: The amount of air blown from the diffusion air outlet: The amount of air blown from the diffusion air outlet is about 7: 3.
[0055]
2. The ratio of the amount of air blown out from the seat 41 to the amount of air blown out from the late stage diffusion blowout port and the face blowout port is made larger than that in the initial state, and the amount of air blown out from the face blowout port is increased. The ratio of the amount of air blown from the diffusion outlet is increased compared to the initial state.
[0056]
Specifically, the amount of air blown from the diffusion blower outlet and the face blower outlet is about 50% or more of the blown amount blown by the fan 14, and the blown amount of air blown from the seat 41 is blown by the fan 14. The amount of air blown from the face outlet: The amount of air blown from the diffusion outlet is about 5: 5.
[0057]
3. In a state where the total air volume blown into the steady operation room is smaller than the total air volume blown into the room during the cool-down operation, the amount of air blown from the diffusion outlet and the face outlet is set to be larger than the amount of air blown from the seat 41. While increasing the size, the amount of air blown from the diffusion outlet is made larger than the amount of air blown from the face outlet.
[0058]
Next, the effect of this embodiment is described.
[0059]
In this embodiment, since the mode of the air blown into the room is controlled according to the air conditioning state in the vehicle interior, it is possible to achieve both an immediate cooling effect and comfort during cool-down operation, and a comfortable air conditioning environment throughout the vehicle interior Can be provided.
[0060]
(Other embodiments)
In the above-described embodiment, air is blown out so that air is scattered from substantially the entire area of the ceiling. However, the present invention is not limited to this, and for example, locally toward an occupant (seat). You may make it blow off air.
[0061]
Further, in the above-described embodiment, the control-related means described in the claims is realized by the control step performed by the electronic control device 50, but the present invention is not limited to this.
[Brief description of the drawings]
FIG. 1 is a diagram showing an air blowing state of a vehicle air conditioner according to an embodiment of the present invention.
FIG. 2 is a diagram showing an air blowing state of the vehicle air conditioner according to the embodiment of the present invention.
FIG. 3 is a diagram showing an air blowing state of the vehicle air conditioner according to the embodiment of the present invention.
FIG. 4 is a flowchart showing characteristic control of the vehicle air conditioner according to the embodiment of the present invention.
FIG. 5 is a schematic diagram of a vehicle air conditioner according to an embodiment of the present invention.
FIG. 6 is a schematic diagram showing a control system of the vehicle air conditioner according to the embodiment of the present invention.
[Explanation of symbols]
11, 21 ... air conditioning casing,
15a-15e, 25d, 25e ... air supply port,
16a-16e, 26d, 26e ... Blow mode door,
17, 27 ... cooler, 18, 28 ... heater, 19, 29 ... air mix door.

Claims

Wall blowing means for blowing air from the interior wall including at least the ceiling into the vehicle interior;
Seat blowing means for blowing air from the seat (41, 42) on which the occupant is seated to the occupant;
Rapid operation determination means for determining whether or not to perform rapid cooling operation;
When it is determined by the rapid cooling operation determination means that the rapid cooling operation is performed, the rapid cooling operation blowing amount determination means that determines the amount of air blown from both the blowing means;
A normal operation blowing amount determining means for determining a blowing amount of air blown from both the blowing means when it is determined by the rapid cooling operation determining means that rapid cooling operation is not performed ;
Rapid cooling operation progress determination means for determining the progress of rapid cooling operation;
When the progress state of the rapid cooling operation determined by the rapid cooling operation progress state determination unit is on the initial state side from the predetermined state, the amount of air blown out from the seat blowing unit is the amount of air blown out from the wall surface blowing unit A vehicle air conditioner comprising : a first rapid cooling operation blowing control means that makes the blowing amount larger than the blowing amount .

When the progressing state of the rapid cooling operation determined by the rapid cooling operation progress state determining unit is on the later state side than the predetermined state, the amount of air blown out from the wall surface blowing unit with respect to the amount of air blown out from the seat blowing unit proportion, air-conditioning system according to claim 1, characterized in that it comprises a second rapid cooling operation during air discharge control means for increasing than when the initial state.

The steady-state blowing amount determining means determines the total air volume blown indoors from the total air volume blown indoors during the rapid cooling operation when the rapid cooling operation determining means determines that the rapid cooling operation is not performed. with smaller, air-conditioning system according to claim 1 or 2, characterized in that greater than blowing amount of air blown out of the blowing amount of air blown from the wall outlet means from said sheet outlet section.

Wall blowing means for blowing air from the interior wall including at least the ceiling into the vehicle interior;
Seat blowing means for blowing air from the seat (41, 42) on which the occupant is seated to the occupant;
Rapid operation determination means for determining whether or not to perform rapid cooling operation;
When it is determined by the rapid cooling operation determination means that the rapid cooling operation is performed, the rapid cooling operation blowing amount determination means that determines the amount of air blown from both the blowing means;
When it is determined by the rapid cooling operation determination means that rapid cooling operation is not performed, a steady operation blowing amount determination means that determines the amount of air blown from both the blowing means , and
The steady-state blowing amount determining means determines the total air volume blown indoors from the total air volume blown indoors during the rapid cooling operation when the rapid cooling operation determining means determines that the rapid cooling operation is not performed. A vehicle air conditioner characterized in that it is made smaller and the amount of air blown out from the wall surface blowing means is larger than the amount of air blown out from the seat blowing means .

Diffusion blowing means for blowing air from substantially the entire upper surface side of the instrument panel;
Local blowing means for blowing air locally from the instrument panel;
Seat blowing means for blowing air from the seat (41) on which the occupant is seated to the occupant;
Rapid operation determination means for determining whether or not to perform rapid cooling operation;
A rapid cooling operation blowing amount determining means for determining an amount of air blown from the three blowing means when it is determined by the rapid cooling operation determining means to perform rapid cooling operation;
A steady operation blowing amount determining means for determining the amount of air blown out from the three blowing means when it is determined by the rapid cooling operation determining means that rapid cooling operation is not performed ,
The steady-state blowing amount determining means determines the total air volume blown indoors from the total air volume blown indoors during the rapid cooling operation when the rapid cooling operation determining means determines that the rapid cooling operation is not performed. A vehicle air conditioner characterized in that it is made smaller and the amount of air blown from the diffusion blowing means and the local blowing means is made larger than the amount of air blown from the seat blowing means .

Diffusion blowing means for blowing air from substantially the entire upper surface side of the instrument panel;
Local blowing means for blowing air locally from the instrument panel;
Seat blowing means for blowing air from the seat (41) on which the occupant is seated to the occupant;
Rapid operation determination means for determining whether or not to perform rapid cooling operation;
A rapid cooling operation blowing amount determining means for determining an amount of air blown from the three blowing means when it is determined by the rapid cooling operation determining means to perform rapid cooling operation;
A steady-state blowing amount determining means for determining the amount of air blown from the three blowing means when it is determined by the rapid cooling operation determining means that rapid cooling operation is not performed ;
Rapid cooling operation progress determination means for determining the progress of rapid cooling operation;
When the progress state of the rapid cooling operation determined by the rapid cooling operation progress state determining means is on the initial state side from a predetermined state, the amount of air blown from the diffusion blowing means and the local blowing means is set to the seat blowing A vehicle air conditioner comprising: a third rapid cooling operation blowing control means that makes the amount of air blown from the means larger than the blowing amount .

Blowout in the fourth rapid cooling operation in which the amount of air blown from the local blowing means is larger than the amount of air blown from the diffusion blowing means when the progressing state of the rapid cooling operation is on the initial state side from the predetermined state The vehicle air conditioner according to claim 6, further comprising a control unit.

When the progress state of the rapid cooling operation determined by the rapid cooling operation progress state determining means is on the later state side than the predetermined state, the diffusion blowing means and the local blowing means for the amount of air blown from the seat blowing means 8. The vehicle air conditioner according to claim 7, further comprising a fifth rapid cooling operation blowing control means for increasing a ratio of the blowing amount of the blown-out air as compared with the initial state.

When the progress state of the rapid cooling operation determined by the rapid cooling operation progress state determining means is in a later state than the predetermined state, the amount of air blown from the diffusion blowing means with respect to the amount of air blown from the local blowing means The vehicular air conditioner according to claim 8, further comprising: a sixth rapid cooling operation blow-out control unit that increases the ratio of the ratio in comparison with the initial state.

The steady-state blowing amount determining means determines the total air volume blown indoors from the total air volume blown indoors during the rapid cooling operation when the rapid cooling operation determining means determines that the rapid cooling operation is not performed. with smaller, according to any one of claims 6 to 9, characterized in that greater than blowing amount of air blown out of the blowing amount of air blown from the diffuser outlet section and the local outlet means from the sheet outlet means Vehicle air conditioner.

The steady operation blowout amount determining means is configured to blow out the air blown from the local blower means when the rapid cooling operation determination means determines that the rapid cooling operation is not performed. The vehicle air conditioner according to claim 5 or 10, wherein the air conditioner is larger than the amount.