A control method of an electric vehicle braking system and the electric vehicle

Abstract

The present invention relates to the field of intelligent driving of electric vehicles, in particular to a control method for the braking system of electric vehicles, which includes: in the vehicle automatic braking control mode, judging whether a signal to close the automatic braking control is received or the brake pedal is stepped on If not, keep the vehicle running in the automatic braking control mode; if yes, switch the automatic braking control mode of the vehicle to the manual braking control mode; in the manual braking control mode, the calculation does not receive the start The duration of the signal of automatic braking control or the signal of stepping on the brake pedal; compare the duration with the preset time threshold to determine whether the duration is greater than the time threshold; if so, switch the manual braking control mode of the vehicle to automatic braking manual control mode. During the driving process of the vehicle, it will also remind or control the vehicle to avoid according to the distance between the vehicle and the obstacle in front, realizing the free switching between automatic braking and manual braking, and ensuring driving safety.

Description

technical field [0001] The invention relates to the field of intelligent driving of electric vehicles, in particular to a control method for a braking system of an electric vehicle and the electric vehicle. Background technique [0002] In recent years, due to environmental deterioration, traffic congestion, and frequent accidents, the field of new energy vehicles and intelligent driving assistance has been rapidly developed. Unmanned driving is in full swing. Adaptive cruise system is a kind of intelligent driving assistance technology. It is developed on the basis of fixed-speed cruise technology, and its purpose is to improve active safety performance. At present, many road traffic conditions in our country are complicated, and many drivers do not have a good understanding of road traffic signs. Especially for novices, they often cannot control the speed of the vehicle. The speed of the vehicle is sometimes fast and sometimes slow. In a critical moment, the speed cannot b...

AI Technical Summary

Problems solved by technology

[0002] In recent years, due to environmental deterioration, traffic congestion, and frequent accidents, the field of new energy vehicles and intelligent driving assistance has been rapidly developed. Unmanned driving is in full swing. Adaptive cruise system is a kind of intelligent driving assistance technology. It is developed on the basis of fixed-speed cruise technology, and its purpose is to improve active safety performance. At present, many road conditions in our country are complicated, and many drivers do not have a good understanding of road traffic signs. Especially for novices, they often cannot control the speed of the vehicle. The speed of the vehicle is sometimes fast and sometimes slow. In a critical moment, the speed cannot be adjusted in time and the emergency brake can cause accidents. Especially for emergencies that require emergency braking during driving, the driver tends to use the accelerator pedal as a vehicle in a panic. Stepping on the brake pedal causes traffic accidents. According to incomplete statistics, more than 100,000 people die in traffic accidents every year. Traffic accidents endanger the lives and property safety of traffic participants and cause a series of social problems. It has received extensive attention from insurance associations, automobile manufacturers, and scientific research institutions.

[0003] Governments and consumers in various countries are deeply aware of the importance of reducing the frequency of accidents and reducing accident injuries. Advanced Driver Assistance Systems (ADAS), as a cutting-edge active safety technology, can effectively reduce the frequency of most types of accidents. However, many auxiliary systems currently The driver can only be reminded that the speed of the vehicle is too fast through the car navigation, but when the driver does not slow down, or fails to actively take emergency braking measures, it often leads to accidents. Therefore, in terms of intelligent driving, there is an urgent need for a Brake assist system that can be combined with manual and automatic

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