Method for controlling emergent brake fault

Abstract

The invention is concerned with an auto-control method for preventing from urgent braking and pressing accelerator pedal mistakenly belonging to auto-control technology field. The testable electromagnetism valve sets on the upriver side of throttle for step and sends the pressure different of fuel to the upper and lower steam of the valve to the pressure intake port of pressure different sensor. The pressure different of flow changes into electric signal of flow pressure different by the sense organ in the sensor and sends to the intake end of signal processor. Set criterion of urgent braking and pressing accelerator pedal mistakenly as the determinant threshold value according to vehicle's type in the signal processor, and the signal processor will judge and estimate according to the instantaneous flow to fuel. When it judges the mistake of braking, it will send braking order to controller to close the testable electromagnetism valve and cut off the fuel through electronic switch, at the same time, the electric pushing pole drives the car to stop to avoid traffic accident.

Description

technical field [0001] The invention relates to a method in the technical field of automatic control, in particular to an automatic control method for preventing a driver from stepping on an accelerator by mistake when a car suddenly brakes. Background technique [0002] With the development of world economy and science and technology, traffic accidents occur frequently while automobiles are becoming more and more popular. There are not a few people who cause major accidents due to the misoperation of car drivers, which needs to be avoided by improving the corresponding technical level. Among them, during the driving process of the car, there is a sudden special situation ahead, such as: a person suddenly crosses the road, the vehicle in front brakes suddenly, etc., because the driver is nervous or unable to react in time, the emergency brake should be performed, but the accelerator is stepped on by mistake, so Major accidents such as vehicle crashes into people or vehicle ...

AI Technical Summary

Problems solved by technology

Among them, during the driving process of the car, there is a sudden special situation ahead, such as: a person suddenly crosses the road, the vehicle in front brakes suddenly, etc., because the driver is nervous or unable to react in time, the emergency brake should be performed, but the accelerator is stepped on by mistake, so Major accidents that cause vehicle crashes into people or vehicle rear-end collisions, etc.

[0003] Although the technology developed around the automobile industry in the world has been quite developed, and people are constantly pursuing technical devices and methods that attempt to realize the fully automatic driving of automobiles, so far, there is still no technologically advanced and mature technology. For self-driving cars, existing vehicles still need to rely on manual driving, especially when the car encounters an emergency and needs to brake in an emergency, it completely depends on the driver's on-the-spot performance to ensure driving safety. Therefore, the car has emergency brakes to prevent accidental stepping Automatic control technology is absolutely necessary, even in the era when fully automatic driverless cars appear in the future, it can be foreseen that the core technology of the present invention has become one of the constituent technologies of new cars

[0004] After searching the literature of the prior art, it was found that Chaoying and Yu Jing published in "Commercial Vehicles" (No. 3, 2004) titled "Safe Driving Technology Today and Tomorrow - Introducing Daimler-Chrysler's safety "Driving Technology" paper introduced how today's advanced car manufacturers consider technical measures to improve car driving safety, pointing out: "As long as the appropriate safety (assistant driving) system is equipped, at least the second type of car accident in road transportation can be completely prevented", " The actual situation is that when the driver realizes that the situation is dangerous, there is often not enough time to make a correct response." "The introduction of smart technology not only brings optimistic prospects for safe transportation, but also makes transportation more efficient." The vision of the future automotive safety technology is mainly focused on the overall consideration of unmanned driving, highlighting the "vehicle distance meter" and the "brake assist device" used to overcome "if the force applied to the brake pedal is insufficient when braking". ", "Lane Departure Warning Device", "Steering Stability Program" and "Night Vision Technology", etc., but they ignore the current and future needs to prevent the driver from accidentally stepping on the accelerator when braking suddenly or when the fuel level suddenly increases. automatic control technology

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