JPS63222939A - environmentally friendly car - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to environmentally adaptive automobiles, and more particularly to improving adaptability to improve safety.

[Conventional technology]

In order to drive cars safely, Japanese Patent Application Laid-Open No. 55-225
Publication No. 79 describes a method of playing a tape recording of various slogans to remind the driver of safe driving when starting the engine, and Japanese Patent Application Laid-open No. 127200/1983 describes a method of recording tapes with various slogans to remind drivers of safe driving. A method is described in which a camera recognizes a traffic sign and informs the meaning of the traffic sign, and Japanese Patent Application Laid-Open No. 56-82643 detects the distance between vehicles and detects when the distance becomes narrow enough to impede safe driving. A method of issuing a warning is described, and Japanese Patent Application Laid-Open No. 105844/1984 describes a method of detecting monotonous driving from steering wheel operation, brake operation, blinker operation, etc. while driving and issuing a warning for a decrease in attentiveness. .

[Problem that the invention seeks to solve]

However, all of the above-mentioned methods issue a uniform warning regardless of the driver's physical condition, and therefore are insufficiently adaptable to changes in the environment as an auxiliary means for safe driving.

Therefore, an object of the present invention is to improve adaptability to changes in the environment and enable safer driving.

[Means for solving problems]

In order to achieve this object, the present invention provides a physical condition signal generating means that generates a physical condition signal according to the physical condition of the driver, and a road condition detection device that detects the condition of the road on which a car runs and generates a road condition signal. means, a driving control means for controlling the driving state of the automobile and generating a driving state signal, and determining safe driving conditions based on the physical condition signal and the road condition signal,
Driving correction means that compares the actual driving condition obtained from the driving condition signal with the safe driving condition and generates a correction signal for performing driving control so that the actual driving condition does not exceed the safe driving condition. It is characterized by having the following.

[Effect]

Safe driving conditions are determined according to the physical condition of the driver and the condition of the road on which the car is traveling, and correction signals (for example, warning signals) are used to control the driving so that the actual driving conditions do not exceed these safe driving conditions. and return control signals) are generated.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

In the embodiment shown in FIG. 1, a physical condition detection device 10 that detects the physical condition of the driver includes an exhalation sensor 11 that detects the alcohol content in the driver's breath and the number of exhaled breaths, and a breath sensor 11 that detects the size of the pupils and the movement of the eyes. It is comprised of a pupil sensor 12, a skin sensor 13 that detects blood pressure, pulse rate, sweating state, body temperature, etc. The road condition detection device 20 detects the condition of the road on which a car runs, and detects the condition of the road surface (concrete, asphalt, soil, gravel, sand, mud, snow, ice burn, cobblestone, grass, puddle, etc.). detection sensor 21,
A forward situation detection sensor 22 that detects the situation ahead (straight ahead, sharp curve, gentle curve, uphill, downhill, road width, vehicle distance, interpersonal, oncoming vehicle, congestion level, night, day, evening, etc.), and traffic signs. It is composed of a detection sensor 23 and the like.

1 The microcomputer 30 uses the physical condition signal output from the driver's physical condition detection device 10 and the road condition signal output from the road condition detection device 20 as input information, and sequentially calculates and estimates safe driving conditions. for example,"
Based on the information that the driver is in good physical condition, at night, on a snowy road, and there is a sharp curve 100 meters ahead, the system determines the safe driving condition of ``slow down gently and drive around the curve at a speed of 10 km/h or less''. Alternatively, by inputting information such as "Road conditions are very good and there is a risk that the driver may fall asleep," a safe driving (driving) condition such as "Stop driving and need at least two hours of sleep" is determined. Or [a long straight road, the speed limit according to road signs is 60 km /
For example, safe driving conditions such as ``maintaining the driving speed at 55 km/h'' are determined by inputting the information of ``h''.

The microcomputer 30 is further connected to receive vehicle running state signals from an engine control device 40 and a vehicle body control device 50, and recognizes the actual running state based on information input from these devices. Then, this actual driving condition is compared with the safe driving condition, and the notification device 60 informs the driver of the measures to be taken in order to prevent the actual driving condition of the vehicle from exceeding the safe driving condition by sound or text. Notify the driver each time by means such as display. For example, the notification content may be ``There is a sharp curve ahead, 10km ahead.''
Slow down to m/h! ”, “You may fall asleep, sleep for at least 2 hours!” or r 20 k
m/h over, reduce speed to 55km/h! ” or other audio or text information.

Therefore, if the driver drives the vehicle in accordance with the notification contents, it will be possible to drive safely in accordance with the driver's physical condition and road conditions.

The embodiment shown in FIG. 2 is based on the comparison results of the previous embodiments, and is based on the engine control device 40 and the vehicle body control device 5 to prevent the actual driving condition of the vehicle from exceeding safe driving conditions.
This generates a closed-loop return control signal that operates 0. In this way, since the vehicle is forced to be controlled under safe driving conditions, it is possible to drive more reliably and safely.

The embodiment shown in FIG. 3 allows the driver to set and input the mode and level of the driving condition that the driver is aware of based on part of the road condition and physical condition as the driver's physical condition information.

A driving mode setting device 1rt70 is provided in place of the physical condition detection device, and this driving mode setting device 1W70 allows setting mode information signals such as normal driving, caution driving, and extreme caution driving to be input to the microcomputer 30. . The road condition detection device 20 is provided with only the front condition detection sensor 22, and the microcomputer 30 is provided with only the front condition detection sensor 22.
This method determines safe driving conditions using only these two types of input information. Even if the input information from the forward situation detection sensor 22 is the same, if the input information from the driving mode setting device 70 is normal driving, the microcomputer 30 sets the speed limit for safe driving conditions to 50 km/h, which requires caution. If the vehicle is running at a speed of 40 km/h while driving with extreme caution, or 30 km/h if the vehicle is driving with extreme caution, the notification device 60 will issue a warning.

For example, if the user realizes that he is driving on a snowy road or is not feeling well and sets the driving mode setting device 70 to the extreme caution driving mode, the microcomputer 30 determines safer driving conditions.

This embodiment can improve safety with simpler detection sensors.

〔Effect of the invention〕

As described above, the present invention determines safe driving conditions according to the physical condition of the driver and the road on which the vehicle is traveling, and performs driving control to prevent the actual driving condition from exceeding the safe driving conditions. This makes it possible to improve adaptability to changes in the environment and further enhance safety.

[Brief explanation of the drawing]

1 to 3 are block diagrams each showing an embodiment of the present invention. 10... Physical condition detection device, 20... Road condition detection device, 30... Microcomputer, 40... Engine control "゛", 50-゛""'::A" +3!t!f
/J, JllIJ! １”１、－稟 ２ Figure name ３ Figure

Claims (1)

[Scope of Claims] 1. Physical condition signal generating means for generating a physical condition signal according to the physical condition of the driver; road condition detecting means for detecting the condition of the road on which the automobile is traveling and generating a road condition signal; a driving control means for controlling the driving condition of the vehicle and generating a driving condition signal; determining stable driving conditions based on the physical condition signal and the road condition signal; An environment-adapted automobile characterized in that it is equipped with driving correction means for generating a correction signal for performing driving control such that the actual driving condition does not exceed a safe driving condition compared to the driving condition. 2. In claim 1, the physical condition signal generating means responds to at least one of the driver's breath rate, alcohol content, pupil size, eye movement, blood pressure, pulse rate, sweating state, and body temperature. 1. An environmentally adaptable vehicle characterized by being configured with a sensor. 3. The environment-adapted automobile according to claim 1, wherein the physical condition signal generating means is configured by setting means for setting the physical condition signal according to the physical condition perceived by the driver. 4. The environment-adapted vehicle according to claim 1, wherein the driving correction means generates the correction signal in the form of sound or light. 5. The environment-adapted vehicle according to claim 1, wherein the traveling correction means generates the correction signal in the form of a control electric signal for controlling the traveling control means to return to the road.