JP2909866B2 - Automotive audio output device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle audio output device mounted on a vehicle and informing a driver of information such as travel guide information and traffic information by voice.

[0002]

2. Description of the Related Art Recently, self-standing inertial navigation or GPS, which is mounted on a vehicle and sequentially and successively outputs a position on a two-dimensional coordinate by arithmetic processing while detecting a traveling distance and a traveling direction of the vehicle by a sensor, or the like. In order to guide the vehicle according to the planned travel route set in advance on the road map while obtaining the current position of the vehicle on the road map by radio navigation, guidance for driving guidance such as right and left turns by voice A navigation device that provides information to a driver has been developed (Japanese Patent Laid-Open No. 2-1).
No. 71900).

[0003]

The problem to be solved is that, in such a conventional navigation device that outputs information by voice, a preset navigation map is set regardless of the driving operation state of the vehicle. Since voice guidance information is issued uniformly at required points, the driver must concentrate more on nerves, such as during overtaking operations, avoiding obstacles, or driving on a spelled road. If voice information is output while the vehicle is in a driving operation state that is not acceptable, it may be noisy for the driver.

Further, even if guidance information is output during an overtaking operation or an obstacle avoiding operation, the driver may not be able to hear the information because the driver concentrates on the driving operation. Is probably there.

[0005]

SUMMARY OF THE INVENTION The present invention relates to an on-vehicle audio output device for outputting information such as information on travel guidance of a vehicle by voice, and is used by a driver during an overtaking operation or an operation to avoid an obstacle. In order to stop the output of voice information when the vehicle is in a driving operation state where more nervousness must be concentrated, the operation amount of the vehicle driving or the operation frequency is detected, and according to the detection result, Means for controlling the output of information by voice is taken.

In addition, the present invention is designed to prevent the driver from retrieving important information by the stopped voice when the driver returns to the operation state in which the vehicle is driving with sufficient time. Means for outputting the information of the stopped voice again is taken.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, an on-vehicle voice output device according to the present invention includes a voice information output unit 1 for outputting information by voice, a vehicle driving operation detection for detecting a vehicle driving operation amount or its operation frequency. It comprises a unit 2 and an audio information output control unit 3 that controls the output of audio information in the audio information output unit 1 according to the detection result.

[0008] The voice information output unit 1 is configured to determine the current position of the vehicle on a road map by the above-described independent inertial navigation or radio navigation, for example, and to set a scheduled travel route previously set on the map. When the current position on the map approaches a predetermined point on the planned traveling route, guidance information for required traveling guidance such as right and left turns is given to the driver by voice when the current position on the map is to be provided so as to guide the vehicle according to the following. Such a navigation device, a device for outputting traffic information received by a radio receiver by voice, a device for an automobile telephone device for notifying a message by telephone, etc., generally output various information from a speaker SP by voice. Are widely applied.

The vehicle driving operation detecting section 2 includes a steering angle sensor S1.
From the sensor signal from the steering wheel,
A sensor signal from the throttle opening sensor S2 detects an operation amount of vehicle operation such as detecting an amount of depression of an accelerator pedal, and a brake switch SW1 or a clutch pedal which is turned on when a brake pedal is depressed. A switch signal from the clutch switch SW2 which is turned on when depressed is used to detect the operation frequency of the vehicle operation such as the number of times the brake pedal or the clutch pedal is depressed within a predetermined time.

The audio information output control section 3 is composed of a microcomputer, and controls the output of audio information in the audio information output section 1 according to a preset program as follows.

[0011] Upon receiving the information on the detection result of the operation amount of the vehicle driving or the frequency of the operation transmitted from the vehicle driving operation detecting section 2, it compares it with a preset threshold value. From the comparison result, when the detection result of the operation amount of the vehicle driving or the operation frequency is larger than the threshold value,
Control is performed so that the output of information by voice in the voice information output unit 1 is stopped. At this time, only the minimum necessary information may be output (for example, a buzzer sounds).

Then, the information of which the output by the voice is stopped is temporarily stored in an internal memory of the voice information output unit 1, and thereafter, the detection result of the operation amount of the vehicle operation or the operation frequency becomes equal to or less than the threshold value. Then, based on the information stored in the internal memory, control is performed so as to preferentially output the information of the previously stopped voice.

When the voice information output control unit 3 compares the detection result of the operation amount of the vehicle driving or the operation frequency thereof with a threshold value, each operation amount such as the steering amount of the steering wheel or the accelerator pedal is depressed. In addition, a unique threshold value is set for each operation frequency such as the number of times the brake pedal or the clutch pedal is depressed within a predetermined time.

Based on the vehicle driving operation amount detected by the vehicle driving operation detecting section 2 or a plurality of combinations of the operation frequency, during a passing operation, during an operation to avoid an obstacle, during a driving operation on a spelling road, etc. In order to comprehensively determine that the driver of the vehicle is in a driving operation state in which the driver needs to concentrate more nerves, for example, the steering amount of the steering wheel and the depression amount of the accelerator pedal exceed the corresponding threshold values, respectively. Of the information by voice, or in combination with the fact that each operation frequency of the steering amount of the steering wheel and the number of steps of the brake pedal and the clutch pedal within a predetermined time exceeds the corresponding threshold value, respectively. Output is stopped.

At this time, the output of the information by voice may not be completely stopped, but the voice information may be minimized and output when the real-time voice output is absolutely necessary according to the situation. . Also, for example,
In the case of traffic congestion information, the original voice output of "Traffic congestion of 5km from Otsuki interchange on the upbound of Tohoku Expressway" may be changed to a simple expression of "congestion information exists" and output. Good.

Therefore, according to the present invention, the driving operation state of the vehicle in which the driver needs to concentrate his or her nerves during the overtaking operation, the obstacle avoiding operation, or the spelling operation on the road, etc., is set. At one time, the output of the information by voice is stopped, so that the information by voice is not annoyingly output.

Further, from the time when the driver is in a driving operation state in which the driver needs to concentrate his or her nerves more, the driving operation state changes to a normal driving operation state in which the driver is driving the vehicle with a sufficient mental and physical margin. When the vehicle returns, information on the previously stopped voice is output again, and the information can be reliably transmitted to the driver.

[0018]

As described above, in the on-vehicle audio output device according to the present invention, the operation amount or the operation frequency of the vehicle driving is predicted.
Measures to stop the output of audio information based on the detection result after detecting that the threshold value has become larger than the set threshold value . When the driver is in a driving operation state in which the driver needs to concentrate his or her nerves, for example, during the avoidance operation of the vehicle, it is possible to stop the annoying information from being output.

Further, when the driver returns to the normal driving operation state in which the driver is driving the vehicle with a sufficient mental and physical margin, the information of the previously stopped voice is output again, and the driver is notified. This has the advantage that the information can be transmitted reliably.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a vehicle-mounted audio output device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Voice information output part 2 Vehicle driving operation detection part 3 Voice information output control part

Claims (5)

(57) [Claims] 1. A voice information output unit for outputting voice information, and an operation amount or operation frequency of vehicle driving is preset.
And a voice information output control unit that controls output of voice information in the voice information output unit to be stopped in accordance with a result of the detection. And an on-vehicle audio output device. 2. The method according to claim 1, wherein the voice information output control unit is configured to output the voice information while the detection result of the operation amount or the operation frequency of the vehicle driving provided from the vehicle driving operation detection unit is larger than a predetermined threshold value. The output of the information by voice in the output unit is stopped, and when the operation amount of the vehicle driving or the operation frequency becomes equal to or less than a preset threshold value, the voice information output unit outputs the previously stopped voice. Outputting the information.
An audio output device for a vehicle according to the paragraph. 3. The apparatus according to claim 2, wherein the voice information output control unit is configured to output the voice information while the detection result of the operation amount or the operation frequency of the vehicle driving provided from the vehicle driving operation detection unit is larger than a predetermined threshold value. The audio output device for a vehicle according to claim 1, wherein the output of information by audio in the output unit is minimized. 4. A combination of a plurality of types of vehicle driving detected by the vehicle driving operation detecting unit or a combination of the fact that the operation frequency exceeds a threshold value set corresponding to each of the plurality of types of vehicle driving. 3. The vehicle audio output device according to claim 2, wherein the output of the information by voice in the output unit is stopped. 5. A combination of a combination of a plurality of types of vehicle operation detected by a vehicle operation detection section or a frequency of the operation exceeding a threshold value set corresponding to each of the plurality of types of vehicle operation. 4. The vehicle audio output device according to claim 3, wherein the output of the information by voice in the output unit is minimized.