JPH0254254B2 - - Google Patents
Info
- Publication number
- JPH0254254B2 JPH0254254B2 JP58076632A JP7663283A JPH0254254B2 JP H0254254 B2 JPH0254254 B2 JP H0254254B2 JP 58076632 A JP58076632 A JP 58076632A JP 7663283 A JP7663283 A JP 7663283A JP H0254254 B2 JPH0254254 B2 JP H0254254B2
- Authority
- JP
- Japan
- Prior art keywords
- speed
- circuit
- comparator
- vehicle
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K31/02—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including electrically actuated servomechanism
- B60K31/04—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including electrically actuated servomechanism and means for comparing one electrical quantity, e.g. voltage, pulse, waveform, flux, or the like, with another quantity of a like kind, which comparison means is involved in the development of an electrical signal which is fed into the controlling means
- B60K31/042—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including electrically actuated servomechanism and means for comparing one electrical quantity, e.g. voltage, pulse, waveform, flux, or the like, with another quantity of a like kind, which comparison means is involved in the development of an electrical signal which is fed into the controlling means where at least one electrical quantity is set by the vehicle operator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2552/00—Input parameters relating to infrastructure
- B60W2552/15—Road slope, i.e. the inclination of a road segment in the longitudinal direction
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Controls For Constant Speed Travelling (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Feedback Control In General (AREA)
- Control Of Velocity Or Acceleration (AREA)
Description
【発明の詳細な説明】
本発明は、既存の自動車用定速走行回路に速度
補正回路を追加した自動車用定速走行装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a constant speed driving device for an automobile in which a speed correction circuit is added to an existing constant speed driving circuit for an automobile.
従来、自動車用定速走行装置は自動車を一定速
度にセツトすると、常に道路条件に拘らず、定速
で自動車を走行させる。 Conventionally, when a constant speed vehicle is set to a constant speed, the vehicle is always driven at a constant speed regardless of road conditions.
而して、例えば、自動車用定速走行装置を装着
した自動車が登り坂を走行するとき、登り坂にも
拘らず速度が一定であるため、前走車に直ちに追
着くのでブレーキを足踏操作し、該自動車用定速
走行装置を解除する必要があつた。また自動車が
登り坂から下り坂に入つたとき、その微かな時
間、登り坂のときの加速動作によりエンジンの回
転数が増加し、下り坂にも拘らず高速化される。
そこで、ドライバーは前述同様に、ブレーキを足
踏操作し、自動車の速度を低下させる必要があつ
た。このように、特に日本における道路事情によ
れば、自動車用定速走行装置を自動車に装着した
にも拘らず、その利点が生かされないばかりか、
そのままの使用では危険である等の問題点があつ
た。 For example, when a car equipped with a constant speed vehicle travels uphill, its speed is constant despite the uphill slope, so it immediately catches up to the car in front, so it has to step on the brake. However, it was necessary to release the constant speed vehicle. Furthermore, when a car goes from an uphill slope to a downhill slope, the engine rotational speed increases due to the acceleration operation during the uphill slope, increasing the speed even though the car is going downhill.
Therefore, the driver had to step on the brake to reduce the speed of the vehicle, as described above. According to the road conditions, especially in Japan, even though automobiles are equipped with constant speed driving devices, not only are their advantages not fully utilized, but
There were problems such as being dangerous if used as is.
本発明は叙上の問題点を解消すべく、発明した
ものであり、自動車が登り坂や下り坂等特殊な道
路事情における路面を走行するとき、自動的に減
速等を行なう作用をする新規な自動車用定速走行
装置を提供することを目的としたものである。 The present invention was invented to solve the above-mentioned problems, and is a novel device that automatically decelerates when a car runs on a road surface with special road conditions such as uphill or downhill. The purpose of this invention is to provide a constant speed traveling device for automobiles.
以下、添付図面に基づき、本発明に係る自動車
用定速走行装置の一実施例を詳述する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a constant speed traveling device for an automobile according to the present invention will be described in detail below with reference to the accompanying drawings.
第１図は本発明に係る自動車用定速走行装置の
一実施例を示す電気回路図である。 FIG. 1 is an electric circuit diagram showing an embodiment of a constant speed traveling device for an automobile according to the present invention.
１は直流電源である。２は所望の車速に到達し
たとき操作するセツトスイツチであり、直流電源
１の正極側に接続されている。３は速度センサー
であり、所定の車速において感知し得るもので、
前記直流電源１の正極側に接続している。４は前
記セツトスイツチ２の出力側に接続した双安定フ
リツプフロツプであり、NOR回路とノツト回路
を組合せ構成している。５は前記双安定フリツプ
フロツプ４の出力側に接続した非安定マルチ回路
であり、OR回路、ノツト回路、抵抗及びコンデ
ンサを組合せ構成している。 1 is a DC power supply. Reference numeral 2 designates a set switch that is operated when a desired vehicle speed is reached, and is connected to the positive electrode side of the DC power source 1. 3 is a speed sensor, which can be detected at a predetermined vehicle speed,
It is connected to the positive electrode side of the DC power supply 1. Reference numeral 4 denotes a bistable flip-flop connected to the output side of the set switch 2, which is configured by combining a NOR circuit and a NOT circuit. Reference numeral 5 denotes an astable multi-circuit connected to the output side of the bistable flip-flop 4, which is composed of a combination of an OR circuit, a knot circuit, a resistor, and a capacitor.
６は、デジタル・アナログ変換回路であり、前
記非安定マルチ回路５の出力側に接続されると共
に、IC回路６ａ及びラダー抵抗６ｂを備えて構
成されている。７は速度積分回路であり、前記速
度センサー３の出力側に接続されている。該速度
積分回路７は微分回路７ａ、単安定回路７ｂ及び
積分回路７ｃを接続構成している。 Reference numeral 6 denotes a digital-to-analog conversion circuit, which is connected to the output side of the unstable multi-circuit 5 and includes an IC circuit 6a and a ladder resistor 6b. 7 is a speed integration circuit, which is connected to the output side of the speed sensor 3. The speed integrating circuit 7 has a differentiating circuit 7a, a monostable circuit 7b, and an integrating circuit 7c connected to each other.
８は第１のコンパレータであり、速度積分回路
７の出力側に抵抗R1を介して負の入力端子側が
接続されている。該第１のコンパレータ８の正の
入力端子は抵抗R2を介してアースされている。
９はトランジスタであり、そのベースは前記第１
のコンパレータ８の出力側に接続されている。 8 is a first comparator, and its negative input terminal side is connected to the output side of the speed integration circuit 7 via a resistor R1 . The positive input terminal of the first comparator 8 is grounded via a resistor R2 .
9 is a transistor whose base is connected to the first
is connected to the output side of the comparator 8.
１０は速度補正回路であり、第２のコンパレー
タ１０ａ、抵抗R3、ダイオード１０ｂ、及び積
分回路１０ｃで構成されている。前記第２のコン
パレータ１０ａの負極入力端子は速度積分回路７
の出力点ａに接続している。第２のコンパレータ
１０ａの正極入力端子は積分回路１０ｃを介し
て、トランジスタ９のコレクタに接続構成してい
る。該第２のコンパレータ１０ａの出力側は抵抗
R3、ダイオード１０ｂを介してデジタル・アナ
ログ変換回路６のラダー抵抗６ｂの端子に接続し
ている。また、第２のコンパレータ１０ａの出力
側のダイオード１０ｂは抵抗R4を介して第１の
コンパレータ８の負の入力端子側に接続されてい
る。 10 is a speed correction circuit, which is composed of a second comparator 10a, a resistor R3 , a diode 10b, and an integrating circuit 10c. The negative input terminal of the second comparator 10a is connected to the speed integration circuit 7.
is connected to output point a. A positive input terminal of the second comparator 10a is connected to the collector of the transistor 9 via an integrating circuit 10c. The output side of the second comparator 10a is a resistor.
R 3 is connected to the terminal of the ladder resistor 6b of the digital-to-analog conversion circuit 6 via the diode 10b. Further, the diode 10b on the output side of the second comparator 10a is connected to the negative input terminal side of the first comparator 8 via a resistor R4 .
１１は負圧ポンプであり、直流電源１の正極側
及びトランジスタ９のコレクタに接続されてい
る。 Reference numeral 11 denotes a negative pressure pump, which is connected to the positive electrode side of the DC power supply 1 and the collector of the transistor 9.
１２は負圧アクチユエータであり、負圧ホース
１３を介して負圧ポンプ１１に連結している。該
負圧アクチユエータ１２はスロツトルバルブ１４
と連結し、弁の開度を制御している。 12 is a negative pressure actuator, which is connected to the negative pressure pump 11 via a negative pressure hose 13. The negative pressure actuator 12 is a throttle valve 14.
It is connected to the valve and controls the opening degree of the valve.
該スロツトルバルブ１４の作動は速度センサー
３を連動させる。 The operation of the throttle valve 14 causes the speed sensor 3 to operate in conjunction.
次に作用を説明する。 Next, the action will be explained.
自動車が所定の車速に到達すればセツトスイツ
チ２を操作し、例えばOFF，ON，OFFと順次タ
ツチ操作し記憶させる。而して、トランジスタ９
を作動し、負圧ポンプ１１を回転作動し、負圧ホ
ース１３を介して、負圧アクチユエータ１２を作
動させ、スロツトルバルブ１４を開閉し、その信
号速度センサー３に伝達し、速度をコントロール
する。なお、負圧アクチユエータ１２の位置を一
定に保持するためには、負圧ポンプ１１を断続運
転し、これによる負圧を負圧ホース１３から一部
を大気に逃し負圧アクチユエータ１２内のスプリ
ングとバランス図る。 When the vehicle reaches a predetermined speed, the set switch 2 is operated, for example, by sequentially touching OFF, ON, and OFF, and storing the settings. Therefore, transistor 9
, rotates the negative pressure pump 11, operates the negative pressure actuator 12 via the negative pressure hose 13, opens and closes the throttle valve 14, and transmits the signal to the speed sensor 3 to control the speed. . In order to keep the position of the negative pressure actuator 12 constant, the negative pressure pump 11 is operated intermittently, and a part of the resulting negative pressure is released to the atmosphere from the negative pressure hose 13, and the spring inside the negative pressure actuator 12 is released. Aim for balance.
自動車の走行により速度センサー３を回転さ
せ、この速度センサー３からの信号は速度積分回
路７へ導入され、微分回路７ａ、単安定回路７
ｂ、積分回路７ｃのそれぞれを作動させる。而し
て、車速に応じた出力信号が出力点ａに導出され
る。 The speed sensor 3 is rotated by the running of the car, and the signal from the speed sensor 3 is introduced into the speed integration circuit 7, which then passes through the differentiating circuit 7a and the monostable circuit 7.
b. Activate each of the integrating circuits 7c. Thus, an output signal corresponding to the vehicle speed is derived to the output point a.
次に、設定した車速の記憶電圧は自動車が所定
の車速で走行中において、セツトスイツチ２を
OFFからONへ、ONからOFFへ瞬時操作するこ
とにより、この信号を双安定フリツプフロツプ４
に印加する。そこで、該双安定フリツプフロツプ
４の出力点ｂは高レベルの信号から低レベルの信
号に変化し、非安定マルチ回路５を作動させる。
該非安定マルチ回路５からの発振信号はデジタ
ル・アナログ変換回路６に印加する。而して、デ
ジタル・アナログ変換回路６の出力点Ｃには、カ
ウント数に比例した電圧を出力し得る。この信号
を記憶すべく双安定フリツプフロツプ４を反転さ
せかつ発振作用を停止させる。 Next, the memory voltage of the set vehicle speed is stored when the set switch 2 is turned on while the vehicle is running at the predetermined speed.
By instantaneously operating from OFF to ON and from ON to OFF, this signal is transferred to the bistable flip-flop 4.
to be applied. Therefore, the output point b of the bistable flip-flop 4 changes from a high level signal to a low level signal, thereby activating the astable multi-circuit 5.
The oscillation signal from the unstable multi-circuit 5 is applied to a digital-to-analog conversion circuit 6. Thus, a voltage proportional to the count number can be outputted to the output point C of the digital-to-analog conversion circuit 6. To store this signal, the bistable flip-flop 4 is inverted and its oscillation action is stopped.
また、第１のコンパレータ８はその正極入力端
子は一定電圧に保持されている。その負極入力端
子は、車速電圧と記憶用出力電圧の加算値が印加
され、この負極入力端子側の電圧値が前記正極入
力端子側の電圧値より大きいとき、第１のコンパ
レータ８の出力値が高レベルから低レベルに反転
変化し、前記双安定フリツプフロツプ４を反転作
動させ、発振作用を停止させる。今、自動車が登
り坂を走行するとき、トランジスタ９の出力信号
が速度補正回路１０の積分回路１０ｃにより積分
され、この信号は高レベルとなる。この高レベル
の信号を第２のコンパレータ１０ａの正極側入力
端子に印加される。また、第２のコンパレータ１
０ａの負極側入力端子には速度積分回路７の出力
点ａから車速電圧が印加される。 Further, the positive input terminal of the first comparator 8 is maintained at a constant voltage. The sum of the vehicle speed voltage and the memory output voltage is applied to the negative input terminal, and when the voltage value on the negative input terminal side is larger than the voltage value on the positive input terminal side, the output value of the first comparator 8 is The signal changes from a high level to a low level, inverting the bistable flip-flop 4 and stopping the oscillation. Now, when the car is traveling uphill, the output signal of the transistor 9 is integrated by the integration circuit 10c of the speed correction circuit 10, and this signal becomes high level. This high level signal is applied to the positive input terminal of the second comparator 10a. Also, the second comparator 1
A vehicle speed voltage is applied from the output point a of the speed integration circuit 7 to the negative input terminal 0a.
而して、自動車が登り坂を走行しているので、
前記第２のコンパレータ１０ａの正極側入力端子
に印加される電圧は負極側入力端子に印加される
電圧より大きいので、該第２のコンパレータ１０
ａは作動し、高レベルの信号を導出する。 Therefore, since the car is traveling uphill,
Since the voltage applied to the positive input terminal of the second comparator 10a is larger than the voltage applied to the negative input terminal, the second comparator 10a
a is activated and derives a high level signal.
そこで、この信号は抵抗R3、ダイオード１０
ｂを介して、デジタル・アナログ変換回路６の出
力点の電圧に加重される。 Therefore, this signal is connected to the resistor R 3 and the diode 10
The voltage at the output point of the digital-to-analog conversion circuit 6 is weighted via b.
而して、自動車の車速が一般走行フイーリング
に適合する速度に自動的に低下し、自動車を登り
坂において走行するとき、速度がコントロールさ
れる。 Thus, the vehicle speed of the vehicle is automatically reduced to a speed that is compatible with the general driving feeling, and the speed is controlled when the vehicle is traveling uphill.
自動車が下り坂を走行するときも同様に車速を
自動的に低下させることができる。 Similarly, the vehicle speed can be automatically reduced when the vehicle is traveling downhill.
図中、Ｄはダイオード、R4は抵抗である。 In the figure, D is a diode and R4 is a resistor.
本発明は叙上の構成、作用を有するので、次の
効果がある。すなわち、定速走行装置を装着した
自動車において、登り坂又は下り坂を自動車が走
行するとき、一般走行フイーリングに適合する速
度に自動的に車速を低下させることができ、追突
防止することができる。またブレーキの足踏操作
が不要となり、ドライブの被労が少なくなる。 Since the present invention has the above configuration and operation, it has the following effects. That is, when a vehicle equipped with a constant speed traveling device is traveling uphill or downhill, the vehicle speed can be automatically reduced to a speed that matches the general driving feeling, and a rear-end collision can be prevented. In addition, there is no need to press the brake pedal, reducing the amount of effort required for the drive.
又、既存の車両に速度補正回路を追加するのみ
でよく、構成が簡素であり、応用範囲が広い等
種々の効果がある。 In addition, it is sufficient to simply add a speed correction circuit to an existing vehicle, resulting in a simple configuration and a wide range of applications.
第１図は本発明に係る自動車用定速走行装置の
一実施例を示す電気回路図である。
１……直流電源、２……セツトスイツチ、３…
…速度センサー、４……双安定フリツプフロツ
プ、５……非安定マルチ回路、６……デジタル・
アナログ変換回路、７……速度積分回路、８……
第１のコンパレータ、１０……速度補正回路、１
０ａ……第２のコンパレータ、１０ｂ……ダイオ
ード、１０ｃ……積分回路。
FIG. 1 is an electric circuit diagram showing an embodiment of a constant speed traveling device for an automobile according to the present invention. 1...DC power supply, 2...Set switch, 3...
…Speed sensor, 4…Bistable flip-flop, 5…Astable multi-circuit, 6…Digital
Analog conversion circuit, 7... Speed integration circuit, 8...
First comparator, 10...speed correction circuit, 1
0a...Second comparator, 10b...Diode, 10c...Integrator circuit.
Claims (1)
信号を記憶し、かつ、信号変換するデジタル・ア
ナログ変換回路と、該デジタル・アナログ変換回
路の出力信号に更に加重される信号を導出するコ
ンパレータを有する速度補正回路とを備え、該速
度補正回路を、自動車が登り坂又は下り坂を走行
する時に、前記コンパレータの正極側入力端子に
負極側入力端子に印加される車速電圧よりも大き
な電圧を印加して前記コンパレータを作動し、そ
の導出した信号を前記デジタル・アナログ変換回
路の出力信号に加重して、自動車の車速を一般走
行フイーリングに適合する速度に自動的に低下さ
せる機能を有する回路構成としたことを特徴とす
る自動車用定速走行装置。1 A speed correction circuit having a set switch, a digital-to-analog conversion circuit for storing and converting a signal from the set switch, and a comparator for deriving a signal to be further weighted on the output signal of the digital-to-analog conversion circuit. The speed correction circuit is configured such that when the vehicle runs uphill or downhill, a voltage higher than the vehicle speed voltage applied to the negative input terminal of the comparator is applied to the positive input terminal of the comparator to activate the comparator. The circuit is configured to have a function of automatically lowering the vehicle speed to a speed that matches the general driving feeling by weighting the derived signal on the output signal of the digital-to-analog conversion circuit. Constant speed running device for automobiles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58076632A JPS59201118A (en) | 1983-04-30 | 1983-04-30 | Constant speed traveling device for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58076632A JPS59201118A (en) | 1983-04-30 | 1983-04-30 | Constant speed traveling device for car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59201118A JPS59201118A (en) | 1984-11-14 |
| JPH0254254B2 true JPH0254254B2 (en) | 1990-11-21 |
Family
ID=13610744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58076632A Granted JPS59201118A (en) | 1983-04-30 | 1983-04-30 | Constant speed traveling device for car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59201118A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6328732A (en) * | 1986-07-21 | 1988-02-06 | Mitsubishi Motors Corp | Method for deciding throttle operation volume in constant-speed running device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3885644A (en) * | 1973-12-10 | 1975-05-27 | Philco Ford Corp | Variable gain vehicle speed control system |
-
1983
- 1983-04-30 JP JP58076632A patent/JPS59201118A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59201118A (en) | 1984-11-14 |
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