Braking method and system based on air suspension control and vehicle

Abstract

The invention discloses a braking method and system based on air suspension control and a vehicle. The method comprises steps as follows: if the road condition ahead is poor in planeness, gas pressure in all shock absorbers of an air suspension is controlled to be reduced; if the road condition ahead is a bend road segment or a steering gear is in a steering state, gas pressure of the shock absorber on the r turning outer side of the vehicle is controlled to be increased, and gas pressure of the shock absorber on the turning inner side of the vehicle is controlled to be reduced; when current vehicle speed exceeds a vehicle speed boundary value and rebounding acceleration is higher than 90% of fully-rebounding acceleration, pre-braking acceleration is determined according to the rebounding acceleration, target pressure of the shock absorbers is obtained according to the pre-braking acceleration, and gas pressure of the shock absorbers on front suspensions on two sides of the vehicle is adjusted; a pre-braking signal is sent to the vehicle braking device. According to the method, braking intention of a driver is estimated in advance, pre-braking is performed, gas pressure of the shock absorbers of the braking system is controlled, and higher safety and convenience are provided.

Description

technical field [0001] The present invention relates to the technical field of vehicle control, more specifically, to a braking method and system based on air suspension control. The invention also relates to a vehicle comprising the above-mentioned braking system based on air suspension control. Background technique [0002] The braking system of the vehicle is one of the important control systems of the vehicle, and the development of vehicle control braking technology determines the technical level of the vehicle. [0003] The braking system of the vehicle in the prior art includes brake braking, manual braking, etc. In the traditional situation, when the driver encounters an emergency, he usually releases his right foot stepping on the accelerator quickly, and moves to the brake pedal at the same time. , and depress the brake pedal. When the brake pedal is depressed, the speed of the vehicle will decrease. The driver can respond in time when an emergency situation is d...

AI Technical Summary

Problems solved by technology

[0003] The braking system of the vehicle in the prior art includes brake braking, manual braking, etc. In the traditional situation, when the driver encounters an emergency, he usually releases his right foot stepping on the accelerator quickly, and moves to the brake pedal at the same time. , and depress the brake pedal. When the brake pedal is depressed, the speed of the vehicle will decrease. The driver can respond in time when an emergency situation is discovered, and there is a possibility of delaying the operation, which poses a great threat to the driving safety of the vehicle

In addition, during the driving and braking process of the vehicle, the air suspension of the vehicle is also passively operated in the face of different driving environments, and cannot respond in advance in emergency situations, and cannot realize autonomous adjustment

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