CN205365248U - It steps on accelerator pedal intelligent control device to prevent to miss - Google Patents

Abstract

The utility model discloses an intelligent control device for preventing accidental stepping on the accelerator pedal, comprising: a radar ranging device, a steering wheel angular velocity sensor, an accelerator pedal acceleration sensor, a central processing unit, an electronically controlled fuel supply module, a relay, a linkage, a voice prompt module, brake pedal. The utility model adopts the means of modularized integrated circuit and modularization, so that the structure becomes simple. And in the process of driving, in an emergency situation, when the driver mistakenly presses the accelerator pedal as the brake pedal due to nervousness, the device can automatically recognize that the driver stepped on the accelerator pedal by mistake, and immediately take the brakes to avoid this traffic accident. Accidents happen.

Description

An intelligent control device for preventing accidental stepping on the accelerator pedal

technical field

The utility model belongs to the technical field of automobile safety, and in particular relates to an intelligent control device and a control method for preventing accidental depressing of an accelerator pedal.

Background technique

With the rapid development of my country's economy, the number of automobiles is increasing sharply every year, and the incidence of traffic accidents is also increasing. According to the statistics of my country's relevant transportation departments, traffic accidents caused by mistakenly using the accelerator pedal as a brake pedal during emergency braking account for about 10% of the total accidents every year. Among them, the accidents mainly occurred in the people who have been driving for a long time, novices who have just got their driver's license, and people with poor psychological quality in emergency situations. In addition, in the process of driving, both the accelerator pedal and the brake pedal need to be controlled with the right foot. Therefore, stepping on the accelerator pedal by mistake during braking is usually unavoidable.

Therefore, a kind of intelligent control device and control method for preventing accidental stepping on the accelerator pedal is developed, which is used for emergency braking. When the driver mistakenly steps on the accelerator pedal as the brake pedal, the brake device can still automatically brake. It is very important to effectively avoid traffic accidents like this.

Contents of the invention

The utility model aims at the defects existing in the current braking device, and proposes an intelligent control device and a control method for preventing mistaken stepping on the accelerator pedal. In the process of driving, when there is an emergency and emergency braking is required, the driver will be overly nervous and mistakenly use the accelerator pedal as the brake pedal, and the device can automatically judge that the driver has stepped on the accelerator pedal by mistake. Thereby, the work of the braking device is automatically controlled, and traffic accidents due to accidental stepping on the accelerator pedal are avoided.

Technical scheme of the utility model

An intelligent control device for preventing accidental stepping on the accelerator pedal. The radar distance measuring device, the steering wheel angular velocity sensor and the accelerator pedal acceleration sensor are connected in communication with the central processing unit. .

The relay is connected with the wire of the central processing unit and connected in series with the circuit of the electronically controlled fuel supply system.

The radar distance measuring device is installed on the front bottom of the car.

A kind of control method that prevents stepping on accelerator pedal intelligent control device by mistake, comprises the following steps:

(1) When the central processing unit receives that the acceleration value detected by the accelerator pedal acceleration sensor is greater than the preset value a, but the received distance measured by the radar ranging device does not reach the first preset value H1, and the received steering wheel angular velocity The angular velocity detected by the sensor does not reach the preset value w, at this time, the device believes that the accelerator pedal has not been stepped on by mistake;

(2) If the distance measured by the radar ranging device is less than the first preset value H1 and greater than the second preset value H2, and the received angular velocity detected by the steering wheel angular velocity sensor does not reach the preset value w , at this time, the central processor controls the linkage to work, eliminates the braking gap of the brake pedal, and puts the braking device in an early warning state, until the central processor receives that the distance measured by the radar distance measuring device is less than the second preset value H2, The central processing unit makes the linkage work again to make the brake pedal start to brake, and connects the relay circuit to stop the fuel supply of the electronically controlled fuel supply system, and at the same time informs the driver of stepping on the accelerator pedal by mistake through the voice prompt module;

(3) The central processing unit receives that the acceleration value detected by the accelerator pedal acceleration sensor is greater than the preset value a, and the angular velocity value detected by the steering wheel angular velocity sensor is greater than the preset value w. At this time, the device believes that the driver stepped on the accelerator pedal by mistake, and the central processing unit The linkage is controlled to make the brake pedal start to brake, and the relay circuit is connected to stop the fuel supply of the electronically controlled fuel supply system, and at the same time, the voice prompt module is used to inform the driver of stepping on the accelerator pedal by mistake.

The beneficial effects of the utility model: an intelligent control device and control method for preventing accidental depressing of the accelerator pedal adopts an integrated circuit, and realizes a device with simple structure and low cost through modular means. During the driving process, when an emergency situation requires emergency braking, the driver mistakenly presses the accelerator pedal as the brake pedal due to nervousness. At this time, the control module automatically judges that the driver stepped on the accelerator pedal by mistake according to the collected signals. , and will automatically control the work of the braking device to avoid the occurrence of this traffic accident.

Description of drawings

Fig. 1 is a working principle diagram of the utility model

specific implementation plan

An intelligent control device for preventing accidental stepping on the accelerator pedal, the radar distance measuring device 1, the steering wheel angular velocity sensor 2, the accelerator pedal acceleration sensor 3 and the central processing unit 4 are connected in communication; It is used to detect the distance between the vehicle and the obstacle ahead; the relay 6 is connected in series with the circuit of the electronically controlled fuel supply system 5; it is mainly used to control the work of the electronically controlled fuel supply system 5; the relay 6 is connected with the central processing unit 4 wires, and the central The processor controls the work of the relay; the linkage 7 is an electronically controlled linkage connected in series between the accelerator pedal and the brake pedal 9; it is mainly used to control the work of the brake pedal; the linkage 7 communicates with the central processing unit 4; voice prompts Module 8, using the existing speakers on the car; it is mainly used to promptly inform the driver in the form of voice when the driver steps on the accelerator pedal by mistake;

Specific working process:

(1) When the central processing unit 4 receives that the acceleration value detected by the accelerator pedal acceleration sensor 3 is greater than the preset value a, but the received distance measured by the radar ranging device 1 does not reach the first preset value H1, and receives The angular velocity detected by the steering wheel angular velocity sensor 2 does not reach the preset value w, at this time, the device considers that the accelerator pedal has not been stepped on by mistake;

(2) If the distance measured by the radar ranging device 1 is less than the first preset value H1 and greater than the second preset value H2, and the received angular velocity detected by the steering wheel angular velocity sensor 2 does not reach the preset value value w, at this time the central processing unit 4 controls the linkage to work, eliminates the brake pedal 9 brake clearance, and makes the braking system in the early warning state until the central processing unit 4 receives that the distance measured by the radar distance measuring device 1 is less than the second When the preset value is H2, the central processing unit 4 makes the linkage 7 work again to make the brake pedal 9 start braking, and connects the circuit of the relay 6 so that the electronically controlled fuel supply system 5 stops fuel supply, and at the same time through the voice prompt module 8 Inform the driver of stepping on the accelerator pedal by mistake;

(3) The central processing unit 4 receives that the acceleration value detected by the accelerator pedal acceleration sensor 3 is greater than the preset value a, and the angular velocity value detected by the steering wheel angular velocity sensor 2 is greater than the preset value w. At this time, the device believes that the driver stepped on the accelerator pedal by mistake, The central processing unit 4 controls the linkage to work, so that the brake pedal starts to brake, and the circuit of the relay 6 is connected to stop the fuel supply of the electronically controlled fuel supply system 5, and at the same time, the voice prompt module 8 is used to inform the driver of stepping on the accelerator pedal by mistake.

Claims (3)

1. An intelligent control device for preventing accidental stepping on the accelerator pedal, characterized in that: the radar ranging device (1), the steering wheel angular velocity sensor (2) and the accelerator pedal acceleration sensor (3) are connected to the central processing unit (4) for communication and linkage The device (7) is connected in series between the accelerator pedal and the brake pedal (9), and communicates with the central processing unit (4). 2. An intelligent control device for preventing accidental depressing of the accelerator pedal according to claim 1, characterized in that: the relay (6) is connected to the central processing unit (4) with wires, and is connected in series with the electronically controlled fuel supply system (5). on the circuit. 3. The intelligent control device for preventing accidental depressing of the accelerator pedal according to claim 1, characterized in that: the radar ranging device (1) is installed at the front and bottom of the vehicle.