JPS63127400A - Running controller for automobile - 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 [Industrial Application Field] The present invention relates to a vehicle travel control device that prevents traffic accidents caused by overlooking or ignoring signals and signs at intersections, etc., and achieves safe driving.

[Conventional technology 1] Roads where cars can drive are equipped with traffic lights and traffic lights at key points.
Signs have been installed to maintain the flow of traffic according to road width and surrounding conditions.

[Problems to be solved by the invention] Car drivers do not drive their cars while observing such traffic lights and signs! However, drivers often neglect to stop or slow down at intersections due to their own assumptions or oversight. As a result, many traffic accidents occurred at intersections.

[Means for Solving the Problems] The present invention, which was made for the purpose of solving the above-mentioned problems, has the following features: As illustrated in FIG. Means M for transmitting vehicle speed data
1, means M2 for receiving the vehicle speed data transmitted from the transmitting means M1, which is installed on the automobile side; vehicle speed detection means M3, which is installed on the automobile side and detects the speed of the automobile; Comparing means M for comparing the data content from the transmitting means M1 and the vehicle speed from the vehicle speed detecting means M3;
4, a vehicle speed limiting means M5 provided on the automobile side, which limits the vehicle speed to below the regulated vehicle speed when the vehicle speed content from the vehicle speed detecting means M3 exceeds the regulated vehicle speed of the vehicle speed data of the transmitting means M1; The gist of the present invention is an automobile travel control device characterized by comprising:

The transmitting means M1 is installed on the aisle side and outputs the contents of vehicle speed data in accordance with the vehicle driving regulations to vehicles on the road that must follow the instructions of the vehicle driving regulations in the aisle. For example, it can be realized by a transmitter that emits radio waves, ultrasonic waves, light waves, etc. representing vehicle speed data.

The receiving means M2 is provided on the vehicle side and receives vehicle speed data transmitted from the transmitting means M1. For example, it can be realized by a receiver that receives the above radio waves, ultrasonic waves, light waves, or the like.

The vehicle speed detection means M3 is provided on the vehicle side and detects the speed of the vehicle. For example, this can be realized by operating a reed switch using a magnet that rotates integrally with the output shaft of the transmission and extracting the on/off signal.

The comparison means M4 is a means installed on the automobile side to compare the content of the vehicle speed data from the transmission means M1 and the vehicle speed detected by the vehicle speed detection means M3. For example, it is configured as a well-known logical operation circuit, and the means M4 can be implemented according to a predetermined processing procedure.

The vehicle speed limiting means M5 is installed on the automobile side, and the comparing means M4 transmits the vehicle speed content from the vehicle speed detecting means M3 to the transmitting means M1.
When it is determined that the vehicle speed exceeds the regulation vehicle speed based on the vehicle speed data, the vehicle speed is limited to below the regulation vehicle speed by a control signal from the comparing means M4. For example, this can be realized by adjusting the output of an internal combustion engine using a throttle valve that adjusts intake air, an injection nozzle that adjusts fuel injection, or a brake control device that brakes the rotation of the wheels of an automobile. "Less than regulated vehicle speed" indicates a regulated vehicle speed or less than a regulated vehicle speed.

[Function] As illustrated in FIG. 1, the vehicle travel control device of the present invention entrusts the driver to drive in accordance with the traffic lights and signs when the vehicle travels on a passageway where there is no transmitting means M1. When the automatic vehicle Φ approaches a transmitting means M1 which is transmitting a signal of vehicle speed data in accordance with road vehicle driving regulations, a receiving means M2 receives the signal of the vehicle speed data. The comparison means M4 compares the received vehicle speed data signal with the vehicle speed detection means M.
Compare the vehicle speed signals from 3. When the content of the vehicle speed signal from the vehicle speed detecting means M3 exceeds the content of the vehicle speed data signal from the receiving means M2, the comparing means M4 sends a signal determining the state to the vehicle speed limiting means M5. Vehicle speed limiting means M5
controls the vehicle to below the regulation vehicle speed using the control signal from the comparing means M4. For example, slow down and stop. If the content of the vehicle speed signal from the vehicle speed detection means M3 does not exceed the content of the vehicle speed data signal from the reception means M2 in the above judgment, 1
No restriction is performed by the F speed restriction means M5. The technical problems of the present invention are solved by each component of the present invention acting as described above.

[Embodiments] Next, preferred embodiments of the present invention will be described in detail based on the drawings.

1st Embodiment 1) I
An example of the T-equipment is shown in Figure 2. The intersection of roads R1 and R2? Four traffic lights 1, 1.2.2 are provided for each color of point S. - pair of traffic lights 1, 1 are arranged diagonally on the intersection S so as to restrict the movement of automobiles M on one path R1. Another set of signals 2 and 2 are arranged diagonally on the intersection S to restrict the movement of automobiles (not shown) on the other road R2. Four above-mentioned traffic lights 1.1.2.
At the base of one of the traffic lights 1, there is a pre-signal control device 3.
And 4 are arranged according to transmission. The above traffic light fee i! ll
The device 3 notifies the driver of the restricted state of vehicles entering the intersection S by controlling the blinking of each lamp provided in the four traffic lights 1.1.2.2. The transmitter 4 is connected to the vehicle stop line L of each of the passages R1 and R2.
l, Ll, L2. A road antenna 5a is installed in a flat curved road at a predetermined distance from L2.

It has 5a, 5b, and 5b. The transmitter 4 receives a control signal from the signal wave control device 3, converts the signal into a corresponding transmission signal, and transmits the control signal to the road antennas 5a, 5a, 5b, and 5.
It is transmitted as radio waves from b. For example, a red light indicates the speed of a stopped vehicle, and a yellow light indicates the speed of a slow vehicle.

Next, in an embodiment of the present invention, a vehicle control section 20, which is a configuration on the automobile side, will be explained with reference to FIG. A receiving antenna 3 provided at the lower part of the vehicle M receives a vehicle speed data signal from a vehicle speed sensor 36 provided on the vehicle to detect vehicle speed, and a vehicle speed data signal from the transmitter 4 in accordance with road vehicle regulations.
The output signals of the three receivers that modulate and amplify the received signals are input to an input port 34 that is an interface for external equipment of an electronic control circuit (hereinafter simply referred to as ECU) 30 centered on a microcomputer. be done. Next, the configuration of the ECU 3O will be explained based on FIG. 3. In the ECU 3O, the CPU 31 connects the input port 34 to the input port 34.
The vehicle speed data signal from the vehicle and the vehicle speed data signal in accordance with the vehicle regulation of the road are processed by a control program stored in advance in the ROM 32, and compared with the contents of the ROM 32 storing preset vehicle speed data to determine if necessary. Accordingly, the contents are temporarily stored in the RAM 33, and the output is sent to the output port 3, which is an interface for external equipment.
Exit through 5. The output of the ECU 3O is transmitted through the output port 35 to the internal combustion engine and the gearbox, and controls the clutch disc using magnetic flux to turn on and off power transmission in order to "stop" and "slow down" the vehicle. It controls an electromagnetic clutch 40 to control and a brake control device 41 to brake the rotation of the wheels of the automobile. Next, the travel control process executed by the ECU 3O will be explained based on the flowchart of FIG. 4. This travel control process is repeatedly executed at predetermined time intervals as the ECU 3O is activated.

In step 51, each device is set to its initial state. Next, in step 53, a medium speed data signal from the vehicle speed sensor 36 and a vehicle speed data signal corresponding to the road driving regulations from the transmitter 4 are read via the road antenna 5a, and the process proceeds to step 55. . In step 55, it is determined whether or not the signal from the transmitter 4 is at a high level (ON>), and if an affirmative determination is made, the process proceeds to step 57;
If a negative determination is made, the process proceeds to step 53. Step 5
Step 7 determines whether the signal from the transmitting FA 4 is a stop signal. When the judgment is affirmative, the process proceeds to step 5, and when the judgment is negative, the process proceeds to step 81. On the other hand, in step 5, it is determined whether the vehicle speed is zero based on the signal from the vehicle speed sensor 36. If the vehicle speed is zero, the process advances to step 65.

If the vehicle speed is not zero, the process advances to step 61. In step 61, the electromagnetic clutch 40 is disconnected, and in step 6
Proceed to step 3. In step 63, the brake control device 4
1 and proceeds to step 67. On the other hand, step 6
In step 5, the electromagnetic clutch 40 is disconnected and the process proceeds to step 67. In step 67, the signal data from the transmitter 4 is read and the process proceeds to step 69. In step 69, it is determined whether there is a signal that allows the vehicle to proceed. If the signal does not allow the vehicle to proceed, the process proceeds to step 67. If the signal allows the vehicle to proceed, the process proceeds to step 71. In step 71, the drive of the brake control device is released and the process proceeds to step 73. In step 73, the N magnetic latch 40 is connected and
Proceed to step 3. On the other hand, in step 81, it is determined whether the signal from the transmitter 4 is a signal for slowing down. If the signal does not require slowing down, the process proceeds to step 53. If the signal indicates that the vehicle should slow down, the process proceeds to step 83. In step 83,
When the vehicle speed detected by the vehicle speed sensor 36 exceeds the creeping speed set and stored in the ROM 32,
Proceed to step 85. In step 85, the brake control device 41 is activated and the process proceeds to step 81. On the other hand, if the vehicle speed is within the creeping speed range predetermined by R2, the process proceeds to step 87. In step 87, it is determined whether the brake control device 41 is in an open state. When the brake control device 41 is in the open state, the process proceeds to step 53. When the brake control device 41 is in the driving state,
Proceed to step 89. In step 89, the drive of the brake control device 41 is released and the process proceeds to step 53. Thereafter, the main travel control process repeats steps 53 to 89 described above.

As explained above, in this embodiment, if the car is in a stopped state when the car's receiver receives the stop signal, the above-mentioned E
The CU3O interrupts the electromagnetic clutch 40 to maintain the stopped state of the vehicle, and when the vehicle is moving, the EC
U3O disconnects the electromagnetic clutch 40 and drives the brake control device 41 to stop the vehicle. After that, when the car's receiver receives a signal that allows it to proceed, the ECU
3O releases the drive of the brake control device 41 and connects the electromagnetic clutch 40 to start the car, thereby preventing the driver from overlooking or ignoring the stop signal and driving the car. Further, if the vehicle is in a slow speed state when the receiver of the vehicle receives a slow speed signal, the control device 11 does not operate, and when the vehicle is moving beyond the slow speed, the ECU 3O controls the brake control. The device 41 is driven to reduce the speed to a creeping speed (the 1iff configuration prevents the driver from driving the car without slowing down).

Second Embodiment FIG. 5 shows an example of an automatic short travel control system according to a second embodiment of the present invention. This example is an example of an intersection S where no traffic signals are installed. On the road R11, there is a "temporary stop" traffic regulation in front of the intersection S, and on the road R12, the "slow down" traffic regulation is enforced in front of the intersection S. A driving regulation signal generator 6 and a transmitter 4 are arranged at the corner of an intersection S between roads R11 and R12. The transmitter 4 has road antennas 6a, 6a, 6b, and 6b provided on the road before the intersection S of each of the paths R11 and R12. The above-mentioned transmission FA4 is the above-mentioned) ■Roll control signal generation device 6
The roadside antenna 6a of the path R11 receives a control signal from the roadside antenna 6a and converts the signal into a corresponding transmission signal.

6a and road antennas 6b and 6b on the road R12, respectively, as radio waves. The driving regulation signal generating device 6 transmits a stop signal from the road antennas 5a, 5a and a slowdown signal from the road antennas 6b, 6b as radio waves to notify drivers of cars entering the intersection S. . Next, a system configuration diagram according to an embodiment of the present invention will be explained with reference to FIG. 6.

This embodiment is different from the configuration of the first embodiment (FIG. 3) in that the pre-signal control device 3 of the first embodiment is replaced with an operation regulation signal generator 6, and the input port 34 of the ECU 3O is Start switch 4 that is turned on when the driver starts
The only difference is that the signal from No. 2 is inputted, and the other configurations are the same as those in FIG. Driving regulation signal generator 6
generates vehicle speed data in accordance with vehicle driving regulations at intersections without traffic lights. Next, E above
The travel control process executed by the CU 3O will be explained based on the flowchart shown in FIG. This travel control process is repeatedly executed at predetermined time intervals as the ECU 3O is activated.

In step 101, each device is set to an initial state. Next, in step 103, the vehicle speed data signal from the vehicle speed sensor 36 and the vehicle speed data signal corresponding to the road vehicle driving tlJ from the transmitter 4 are read via the roadside antenna 6b, and step 105 Proceed to. In step 105, the signal from the transmitter 4 is at a high level (O
If the determination is negative, the process proceeds to step 107, and if the result is negative, the process proceeds to step 103. In step 107, it is determined whether the signal from the transmitter 4 is a stop signal. If the judgment is affirmative, the process proceeds to step 109, and if the judgment is negative, the process proceeds to step 121. In step 109, it is determined based on the signal from the vehicle speed sensor 36 whether the vehicle speed is zero or not. If the vehicle speed is zero,
Proceed to step 1151\. If the vehicle speed is not zero, the process advances to step 111. In step 111, the electromagnetic clutch 40 is disconnected and the process proceeds to step 113. Step 1
In step 13, the brake control device 41 is driven to gradually reduce the vehicle speed to zero, and then the process proceeds to step 115.

In step 115, the driver determines whether or not the vehicle can start, and when it is possible to start, turns on the start switch 42 to generate a control signal, and the process proceeds to step 117.

If the vehicle cannot start, the process proceeds to step 115. In step 117, the drive of the brake control device 41 is released by the control signal, and the process proceeds to step 119. In step 119, the electromagnetic clutch 40 is connected and the process proceeds to step 103. On the other hand, in step 121, the transmitter 4
The vehicle determines whether or not the signal indicates that the vehicle should slow down. If the signal does not require slowing down, the process proceeds to step 103. If the signal indicates that the vehicle should slow down, the process proceeds to step 123. In step 123, when the vehicle speed detected by the vehicle speed sensor 36 exceeds the creeping speed stored in the ROM 32, the process proceeds to step 125. In step 125, the brake control device 41 is driven to perform step 12.
Proceed to step 3. On the other hand, if the vehicle speed is the preset creeping speed, the process proceeds to step 127. Step 127
Then, it is determined whether the brake I11 control device 41 is in the open state or not. When the brake control device 41 is in the open state, the process proceeds to step 103. When the brake control device 41 is in the driving state, the process advances to step 129. In step 129, the drive of the brake control device 41 is released and the process proceeds to step 103. Thereafter, the main travel control process repeats steps 103 to 129 described above.

As explained above, in this embodiment, when the receiver of the car receives a temporary stop signal, if the car is stopped, the driver judges whether or not the car is ready to start, and if the car can start, the ECU Generates a control signal for. As a result, the FCU 30 releases the drive of the brake control device 41, connects the electromagnetic clutch 40, and starts the automobile. Furthermore, if the car is in a running state when the car's receiver receives the temporary stop signal, the ECU3O
disengages the electromagnetic clutch 40 and drives the brake control device 41 to stop the vehicle.

Thereafter, it is determined whether or not the driver is ready to start, and if the driver is able to start, the ECU 3O generates a control signal to the ECU 3O to release the drive of the brake control device 41 and the electromagnetic clutch. 40 and start the car. With the above configuration, a driver will not be able to overlook or ignore a temporary stop and drive a car at an intersection where there is no traffic signal. Next, when the car's receiver receives the slow signal, if the car is at a slow speed, the car drive control device will not operate, and if the car is running at a speed exceeding the slow speed, the ECU 3O will control the brake. By driving the control device 41 to decelerate the vehicle to a slow speed, the driver will not drive the vehicle at an intersection where there is no traffic signal 8Bl without slowing down.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments in any way, and it goes without saying that it can be implemented in multiple ways without departing from the gist of the present invention. It is.

[Effects of the Invention] As detailed above, the automobile running control/device of the present invention has the following effects:
When the transmitting means M1 provided on the road announces the automobile driving regulation, the receiving means M2 provided in the automobile transmits the transmitting means M1.
Receive signals from. On the other hand, when the vehicle speed detecting means M3 provided in the automobile detects the vehicle speed, the comparing means M4 compares both values and controls the vehicle speed limiting means M5 according to preset conditions. For this reason, for example, when a car approaches a certain intersection (traffic signal), when the car receives a driving restriction signal, an installed car driving control device determines the content and controls the driving of the car. As a result, drivers will no longer ignore or overlook stop signals and slowdown signals, and traffic accidents at intersections will be eliminated. Furthermore, when a car receives a driving restriction signal at an intersection without a traffic signal, an installed car driving control device determines the content and controls the driving of the car. This will prevent drivers from neglecting to "stop temporarily" and "slow down", and traffic accidents at intersections will be eliminated.

4 Drawing I! i 711 Description FIG. 1 is a basic 4M diagram conceptually illustrating the contents of the present invention, and FIG. 2 is a perspective view of the first embodiment of the present invention. Third
The figure is a system configuration diagram of the first embodiment, FIG. 4 is a flowchart showing its control, FIG. 5 is a perspective view of the second embodiment, FIG. 6 is a system configuration diagram, and FIG. 7 is the same control. Flowchart 1~ shows the following.

Ml...Outgoing signal M2...Receiving means M3.
...Vehicle speed detection means M4...Comparison means M5...Medium speed limiting means 4...Transmission is carried out by 5a, 5b, 6a, 6b...Road antenna 30...
Electronic control unit (ECU) 36...Vehicle speed sensor υ

Claims (1)

[Scope of Claims] A means for transmitting vehicle speed data in accordance with vehicle driving regulations on the road, provided on the road side; a means for receiving vehicle speed data transmitted from the transmitting means, provided on the automobile side; A vehicle speed detection means provided on the vehicle side for detecting the speed of the vehicle; a means provided on the vehicle side for comparing the data content from the transmitting means and the vehicle speed from the vehicle speed detection means; and a means provided on the vehicle side. and vehicle speed limiting means for limiting the vehicle speed to below the regulated vehicle speed when the vehicle speed content from the vehicle speed detecting means exceeds the regulated vehicle speed of the vehicle speed data of the transmitting means. Travel control device.