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System and method for automobile safe driving control

A technology of automobile safety and control methods, which is applied to the safety devices of power plant control mechanisms, tractors, motor vehicles, etc., can solve the problems of different acceleration performance of the accelerator, and does not consider the driving behavior of old drivers, so as to reduce automobile fuel consumption, Easy wiring and improved safety

Inactive Publication Date: 2017-01-04
HUNAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The invention installs an acceleration sensor in the electronic accelerator system. The disadvantage is that the acceleration performance of the accelerator of different models is different, and it is not accurate to judge whether it is stepped on by mistake through the acceleration threshold. Stepping on the accelerator by mistake and automatically braking the device) also did not consider the driving behavior of the old driver

Method used

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  • System and method for automobile safe driving control

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Effect test

Embodiment 1

[0053] Such as figure 1 , a vehicle safety driving control method, the controller detects the position of the accelerator pedal, and calculates the rate of change u of the accelerator pedal, and sets thresholds A and B of the rate of change of the accelerator pedal, and A<B;

[0054] When u≤A, it is determined that the car is running normally, and the controller controls the opening of the throttle based on the position of the accelerator pedal;

[0055] When A<u<B, the controller does not issue a refueling command and does not change the throttle opening;

[0056] When u≥B, the controller drives the braking system to act;

[0057] The rate of change of the accelerator pedal is set to the rate of change of the resistance of the potentiometer connected to the accelerator pedal or the rate of change of the output voltage of the potentiometer.

[0058] When the change rate of the accelerator pedal is the resistance change rate, the value range of A is 0.2R / T≤A≤0.3R / T, and the v...

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Abstract

The invention discloses a system and a method for automobile safe driving control. A controller is used for detecting the position of an accelerator pedal and calculating the change rate u of the accelerator pedal, and accelerator pedal change rate threshold values A and B are set, wherein A is more than B; when u is less than or equal to A, an automobile is judged to normally drive, and the controller controls the opening degree of a throttle valve based on the position of the accelerator pedal; a linear corresponding relation is formed between the opening degree of the throttle valve and the position of the accelerator pedal, that is a refueling instruction is sent out, and at the moment, the control method is a universal control method of an existing automobile. When u is more than A and less than B, the controller does not send out the refueling instruction, and the opening degree of the throttle valve is not changed; when u is more than or equal to B, the controller drives a brake system to act. According to the system and the method for automobile safe driving control, disclosed by the invention, safe driving is favorably guaranteed, the implementation is easy, and the flexibility is good.

Description

technical field [0001] The invention particularly relates to an automobile safety driving control system and a control method thereof. Background technique [0002] Now newer models generally use electronic throttle (for the previous pull-wire throttle), the electronic throttle does not have a pull-wire, by installing a potentiometer (variable resistor) in the pedal, the depth of the accelerator pedal is linearly related to the resistance of the resistor , the electronic system of the car can determine the degree of depressing the accelerator pedal by sampling the resistance value, and then the ECU controller drives the stepping motor to control the opening of the throttle valve. The electronic accelerator has many advantages such as quick response, precise control, flexible installation and layout of the whole vehicle, and can improve the performance of the engine. [0003] In recent years, cars have gradually become a common means of transportation. Many people drive on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K28/02B60T7/12
CPCB60K28/02B60T7/12
Inventor 胡小平王文韫刘勇华李泽玉曹敬
Owner HUNAN UNIV OF SCI & TECH
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