KR19980046906A - Automatic deceleration of the vehicle when cornering - Google Patents

Abstract

The present invention relates to a method for automatically decelerating a vehicle during cornering of a vehicle that automatically decelerates the vehicle speed when a curved road is detected on a driving line of the vehicle, and in the related art, a driver himself operates an accelerator pedal and a brake pedal according to a road condition. Because it is configured to determine the problem, the rollover accident that rotates only the steering wheel without decelerating the speed of the vehicle is often caused due to the immaturity of the road and the inability to respond to changes in the natural environment such as overspeed or snow or rain. have.

1 to 2, the present invention detects the curve on the traveling line with the CCD camera 16, and detects the vehicle speed from the vehicle speed sensor 14 when cornering is input to the memory unit 12 The control unit 10 compares the safe rotational speed to appropriately control the throttle valve actuator 20, the TCU (transmission control unit) 20, and the brake actuating actuator 24 for controlling the opening amount of the throttle valve. It is effective to ensure safe driving by controlling the speed below safe rotation speed.

Description

Automatic deceleration of the vehicle when cornering

The present invention relates to a method for automatically decelerating a vehicle during cornering. More particularly, the present invention relates to a method for automatically decelerating a vehicle when cornering the vehicle to automatically decelerate the vehicle speed when a curve is detected on the vehicle's driving line.

In general, the car travels through the forward, backward and turning movements, and the driving speed is controlled by the proper operation of the accelerator pedal and the brake pedal.

In addition, the road has a speed limit set by the class of the road for driving safety, so the driver must drive within the speed limit of the road.

In particular, when the car is cornering left turn or right turn while driving, the centrifugal force acts on the car body and the load is biased outward.

Because of this, deceleration is absolutely necessary and if you ignore this and turn around the curve, there is a risk of a rollover accident.

However, in the conventional vehicle, the driver himself / herself operates the accelerator pedal and the brake pedal according to the road conditions so that the vehicle speed can be determined. There is a problem that the rollover accident is often caused by rotating only the steering wheel without slowing down the vehicle speed because it does not respond.

Accordingly, an object of the present invention is to provide a method for automatically decelerating a vehicle during cornering to automatically decelerate a vehicle speed when a curve is detected on a driving line of the vehicle.

The present invention for realizing the above object is connected to the speed detection vehicle speed sensor and the corner detection CCD camera and the deceleration operation switch to the input terminal of the control unit having a memory unit in which the safe rotational speed is input for automatic deceleration control during cornering, The output stage is connected with a throttle valve actuator for adjusting the opening amount of the throttle valve, a transmission control unit (TCU) and a bract operated actuator.

Therefore, the present invention detects the curve on the driving line with a CCD camera, detects the speed of the vehicle from the vehicle speed sensor, and compares the safe rotational speed during cornering input to the memory unit to control the opening amount of the throttle valve. By controlling the throttle valve actuator, TCU (transmission control unit) and brake actuating actuator, the vehicle speed is controlled to be below the safe rotation speed.

1 is a configuration diagram for implementing an automatic deceleration method of a vehicle during cornering according to the present invention;

2 is a flowchart of a method for automatically decelerating a vehicle during cornering according to the present invention.

-Explanation of symbols for the main parts of the drawings-

10-control unit, 12-memory,

14-vehicle speed sensor, 16-CCD camera,

18-deceleration switch, 20-throttle valve actuator,

22-TCU (Transmission Control Unit), 24-Brake Actuator.

Referring to the configuration and operation of the present invention in detail based on the accompanying drawings as follows.

According to the present invention, the speed detection vehicle speed sensor 14 and the corner detection CCD camera 16 and the deceleration operation are applied to the input terminal of the control unit 10 having the memory unit 12 to which the safe rotational speed is input for automatic deceleration control during cornering. The switch 18 is connected, and the output terminal is connected to the throttle valve actuator 20, the TCU 22, and the brake actuating actuator 24 for adjusting the opening amount of the throttle valve.

Therefore, the automatic deceleration method of the vehicle during cornering is a step of turning on the deceleration operation switch 18 for storing the safe rotational speed data in the memory unit 12 and executing the automatic deceleration, and the vehicle speed sensor 14. The current vehicle speed signal detected by the control unit and the corner detection signal detected by the CCD camera 16 are input to the control unit 10, and the control unit 10 indicates that the current vehicle speed exceeds the safe rotational speed of the memory unit. Comparing the step and the output signal of the control unit 10, the throttle valve actuator 20 reduces the opening amount of the throttle valve and the TCU 22 operates the engine brake of the low gear shift in the high stage to reduce the vehicle speed. It is a method for automatically decelerating a vehicle at the corner when the brake actuating actuator 24 is operated to decelerate.

Exemplary Drawings FIG. 1 is a configuration diagram for implementing a method for automatically decelerating a vehicle during cornering according to the present invention.

Here, the memory unit 12 outputs a signal to the control unit 10 as a part to which the safe rotational speed corresponding to the limited vehicle speed is inputted when cornering.

The vehicle speed sensor 14 is a portion that detects the speed of the current vehicle and outputs a vehicle speed signal to the control unit 10, and the CCD camera 16 detects the curve road when there is a curve on the driving line and controls the control unit 10. ) Is the part that outputs a signal.

And, the deceleration operation switch 18 is a part for controlling so that the automatic deceleration method according to the present invention only in the on state.

The control unit 10, which is a portion for receiving the detection signal and the on signal of the vehicle speed sensor 14, the CCD camera 16, and the deceleration operation switch 18, performs safe rotation of the memory unit 12 based on the signals. By comparing the speed with the current vehicle speed, if it is determined that the current vehicle speed is greater than the safe rotation speed, a signal for deceleration is output.

A throttle valve actuator 20, a TCU 22, and a brake actuating actuator 24 are connected to the output end of the control unit 10, so that the throttle valve actuator 20 operating signal of the control unit 10 is activated. The opening degree of the throttle valve is limited, the TCU 22 operates the engine brake by the engine brake operation signal of the control unit 10, and the brake is applied by the brake operation signal of the control unit 10. It is.

Therefore, in the present invention, as shown in Fig. 2, the safe rotational speed of the vehicle is stored in the memory unit 12 by storing the data, and the curve road to the CCD camera 16 with the deceleration operation switch 18 turned on. When the corner portion of the control unit 10 is compared with the safe rotational speed input to the driving speed and the safety unit is determined that the current vehicle speed is greater than the safe rotational speed, the control unit 10 operates the throttle valve actuator 20 Signal, engine brake operation signal and brake operation signal are outputted.

The throttle valve actuator 20 is operated to reduce the opening amount of the throttle valve, and the engine brake and the foot brake are engaged to decelerate.

As described above, the present invention detects the curved road on the driving line with the CCD camera 16, detects the speed of the vehicle from the vehicle speed sensor 14 to control the safe rotational speed during cornering input to the memory unit 12 The unit 10 compares the throttle valve opening / closing actuator 20, the TCU (transmission control unit) 20, and the brake actuating actuator 24 to adjust the opening amount of the throttle valve, thereby controlling the speed of the vehicle safely. By controlling it as follows, there is an effect that can make sure of safe driving.

Claims (1)

Turning on the deceleration operation switch 18 for performing the automatic deceleration by storing the safe rotational speed in data and storing it in the memory unit 12, and the current vehicle speed signal detected by the vehicle speed sensor 14 and the CCD camera. Inputting the corner detection signal sensed by the controller 16 to the control unit 10, comparing the control unit 10 with the control unit 10 by determining that the safe rotational speed of the memory unit has been exceeded, and the control unit 10 The throttle valve actuator 20 reduces the opening amount of the throttle valve by the output signal, and the TCU 22 decelerates the vehicle speed by operating the low-speed gearshift engine brake at the high stage, and the brake actuating actuator 24 operates to decelerate. Automatic deceleration method of the vehicle when cornering, characterized in that consisting of a step.