A vehicle adaptive rear suspension control system and control method

Abstract

The invention relates to a self-adaptive rear suspension control system and method for a vehicle. The system comprises a steering wheel steering angle sensor, a wheel speed sensor, an MCU processing module, an image acquisition module, a mode selection module, a micro electric steering pull rod motor and a power source; the steering wheel steering angle sensor, the wheel speed sensor, the image acquisition module, the mode selection module and the micro electric steering pull rod motor are in electric signal connection with the MCU processing module; the power source provides power for the whole control system. According to the technical scheme, on the basis of a multi-link rear suspension structure of the existing vehicle, a toe-in pull rod is replaced with a micro electric steering pullrod, and when the speed of the vehicle is high, the eccentric abrasion of tires is relieved by detecting the abrasion condition of the tires and adjusting the toe-in value of rear wheels; for the rear-drive or four-drive vehicle, when the vehicle is trapped, the angles of the rear wheels can be greatly changed, and the capability of the vehicle of getting out of a trap or steering is improved.

Description

technical field

[0001] The invention belongs to the technical field of automobile suspension systems, in particular to an automobile adaptive rear suspension control system and a control method. Background technique

[0002] Automobile suspension refers to a structure connecting the body and wheels, which mainly includes subframe, anti-roll bar, lower control arm, tie rod, trailing arm, spring, shock absorber and rubber bushing, etc. The main function of the suspension is to absorb the shock and vibration of the wheels when the car is running, so as to ensure the smooth running of the car, thereby improving the driving and riding comfort. At present, the common rear suspension wheels of passenger cars are all non-steering wheels, and their dynamic characteristics have been fixed when the new car is produced. Grinding; For rear-wheel drive or four-wheel drive vehicles, the ability of the rear wheels to get out of trouble is limited when the vehicle is trapped in muddy road c...

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