JPS6067231A - Automatic drive control device - Google Patents

Abstract

PURPOSE:To improve safety of running, by modifying a control content in an automatic drive control when puncture is detected, and a signal is generated, and the puncture detection signal is received by the automatic drive control device. CONSTITUTION:When a puncture detecting section 10 detects puncture of either of plural tires, a puncture control section 11 generates an output to cut off an AND circuit 9 through an OR circuit 8. Thusly, an output of a comparation control section 7 to an automatic drive controlling actuator 4 is canceled in the same manner as the case that a cancel switch is operated. Accordingly, a manual operation may be obtained to reduce a vehicle speed to an arbitral speed.

Description

[Detailed Description of the Invention] Technical Field of the Invention The present invention relates to automatic driving in automobiles, etc.
The present invention relates to an improvement in a control device, and particularly to an autodrive control device that can ensure safe driving when a puncture occurs.

PRIOR ART AND PROBLEMS Auto drive control devices are used to control the drive device of automobiles, etc. so that they run at a preset constant speed, and are used to reduce the burden on the driver. However, if a tire blows out while a car is running at a constant speed using autodrive control, there will be a sudden change in driving conditions and it is dangerous to continue driving at high speed, so take measures such as slowing down or stopping the car. Do a・
There is a point. Therefore, it is necessary to cancel constant-speed driving under autodrive control and switch to manual control, or to change the contents of autodrive control, such as reducing the set vehicle speed for autodrive.

Conventionally, to change the content of autodrive control in such cases, the driver manually cancels constant speed driving under autodrive control and switches to manual control, or performs an operation to change the set vehicle speed of autodrive. I was trying to do it manually.

FIG. 1 shows the configuration of a conventional autodrive control device. In the figure, 1 is a vehicle speed sensor, 2 is an auto drive controller, 3 is a Sera I switch, and 4 is an actuator. Further, in the O-L-drive controller 2, 5 is a vehicle speed conversion section, 6 is a setting section, 7 is a comparison control section, 8 is an OR circuit, and 9 is an AND circuit.

In FIG. 1, a vehicle speed sensor 1 is installed, for example, in a differential gear (diff) section of drive wheels of an automobile, etc., and generates a predetermined number of pulses 8 for each rotation of the axle. generates a signal indicating the magnitude of the vehicle speed. When setting the vehicle speed by auto-drive, when the set switch 3 is pressed when the vehicle speed reaches a desired speed, a signal value indicating the vehicle speed at that time is set in the setting section 6. Comparison control section 7
compares the signal indicating the vehicle speed from the vehicle speed conversion section 5 with the set speed signal from the setting section 6, and outputs an error signal. The error signal is supplied to the actuator 4 via an AND circuit 9,
The actuator 4 thereby controls the intake air amount to the engine, thereby performing constant speed running corresponding to the vehicle speed set in the setting section 6.

In the O1-F live control device shown in Fig. 1, when canceling the auto drive control, if any of the outputs ■, ■, ■ of the cancellation system switch is applied via the OR circuit 8, the ant' circuit 9 is cut off, the output to the actuator 4 disappears, and manual control becomes possible. For example, the output of the cancel system switch is output ■, stop lamp switch output, output ■
is the parking brake switch output for automatic transmission vehicles, and output ■ is also the Nikotral position switch output.

Therefore, as mentioned above, when a flat tire occurs while driving at a constant speed using auto drive control, the control contents can be changed, for example by applying the brakes and activating a stop lamp, thereby canceling the constant speed driving, or After reducing the vehicle speed by braking, the set speed must be changed using a set switch.

However, it is extremely dangerous to drive with a flat tire, so it is necessary to promptly change the automatic drive control content of the speed reduction ring, but generally speaking, if a flat tire occurs while driving, Sudden changes in driving conditions often cause a state of panic, making it difficult to take appropriate measures.

Therefore, in such cases, it would be desirable to be able to switch from autodrive control to manual control or change the content of autodrive control for the set speed reduction ring automatically without manual intervention. No equipment was known that could do this.

Purpose of the Invention The present invention is intended to solve the problems of the prior art, and its purpose is to solve the problems of the prior art as described above, and its purpose is to solve the problems of the prior art when an auto drive device causes a bump while an automobile, etc. is running at a constant speed. , Auto 1, such as canceling constant speed driving by auto drive control or reducing the set speed in the setting means.
The object of the present invention is to provide a device type that can ensure driving safety by changing the live control contents.

Composition of the Invention The autodrive control device of the present invention compares a detected vehicle speed with a set vehicle speed and controls the intake air amount to the engine according to the error to perform constant speed driving. A signal is generated by detecting the tire pressure, and when the puncture detection signal is received, the control contents of the automatic drive control device are changed.

Embodiment of the Invention FIG. 2 is a diagram showing the configuration of an embodiment of the automatic drive control device of the invention. 1), the same parts as in FIG. 1 are indicated by the same numbers, 10 is a bank detection section, and 11 is a bank control section.

In FIG. 2, the auto-drive control during consolidation and the operation when canceling the auto-drive control using the cancellation system switch outputs (1), (2), and (2) are the same as those in FIG. 1. The bank detection section 10 is connected to a plurality of tire pressure sensors (not shown) provided in each tire section! 3IO
1. When any one of the tire pressure sensors detects the banked state of the tire, it generates an output. When the bank control section 11 receives the output (2) indicating bank detection from the bank detection section 10, it generates an output and changes the autodrive control content, such as canceling constant speed driving or lowering the set speed. That is, when performing control to cancel constant speed running, the bank control section 11 generates an output and outputs the OR circuit 8.
The AND circuit 9 is then cut off. As a result, the output of the comparison control section 7 to the actuator 4 disappears, in the same way as when the cancellation switch is activated.
It is now in a state where it can be manually controlled, and thus it can be controlled to any speed by manual operation.

Further, control for reducing the set speed is performed as follows. That is, the bank control section 11 has a unit vehicle speed generation section that generates a unit vehicle speed signal of a constant value, and a subtraction section,
When the bank detection unit 1o receives the output ■ indicating bank detection, it reads out the set value from the setting unit 6, generates a unit vehicle speed signal from the unit vehicle speed generation unit, and subtracts the unit vehicle speed from the set value in the subtraction unit. The subtraction result is rewritten in the setting section 6. As a result, the set speed in the setting section 6 is lowered by a certain value, auto-drive control corresponding to this lower set speed is performed, and the constant traveling speed is lowered.

In the bank control unit 11, "C1" changes the autodrive control, such as selecting which of the two types of control described above to perform and setting the reduction width (size of unit vehicle speed) in the case of a set speed reduction. It is configured such that it can be arbitrarily selected and set in advance in the bank control unit 11.The tire pressure sensor also outputs a signal when the tire pressure drops below a certain value for each tire, for example. It is sufficient to use a pressure sensor that generates pressure and extracts each signal via a slip ring.

Advantages of the Invention As explained above, the autodrive control device of the present invention detects the bank and generates a signal.
It is possible to perform control to change the control content of the autodrive control device when the bank inspection old number a is received, and in that case, as a change of the control content of the autodrive control device, the autodrive control Since it is possible to stop the constant speed driving control in the device or reduce the set speed in the setting means, driving safety can be ensured even if a car etc. is banked while driving at a constant speed due to the OI drive device. can be ensured and is extremely effective.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the configuration of a conventional autodrive control device, and FIG. 2 is a diagram showing the configuration of an embodiment of the autodrive control device of the present invention. ■-Vehicle speed sensor, 2-Auto drive controller, 3・-Set switch, 4・-Actuator, 5・-Single conversion section, 6-Setting section, 7-Comparison control section, B-O" 1 time 1/ /
i, 9-AND time 1 inn, 10-bank detection section, 11-bank control section

Claims (3)

[Claims] (1) Auto drive that has a setting means that sets and holds a target vehicle speed value, compares the detected vehicle speed with the set vehicle speed, and controls the intake air amount to the engine according to the error to perform constant speed driving. An auto drive control device characterized in that the control device includes means for detecting a puncture and generating a signal, and control means for changing the control content applied to the auto drive control device when receiving the puncture detection signal. Device. (2) The autodrive control according to claim 1, wherein the change in the control content in the autodrive control device performed by the control means is the suspension of constant speed running control in the autodrive control device. Device. (3) The autodrive control device according to claim 1, characterized in that the change in the control content in the autodrive control device performed by the control means is a reduction in the set speed assigned to the setting device. .