A cooperative body stability control method and system of a brake-by-wire system and an active suspension, a vehicle, a storage medium and a computer program product

Abstract

The application discloses a body stability control method and system of a cooperative brake-by-wire system and active suspension and a vehicle. A chassis domain fusion controller accurately predicts an ideal dynamic load distribution of each wheel at the next moment based on a vehicle motion state and through a built-in coupling dynamics model. The controller commands a front axle suspension actuator to actively jack up and press the vehicle body mass to the front wheel, and commands a rear axle suspension actuator to actively pull down and adsorb the rear wheel to the ground. The brake-by-wire system calculates the maximum braking torque that can be borne by each wheel at the moment according to the latest load distribution and in combination with a real-time identified road adhesion coefficient, and accurately executes the calculation. The application has the advantages of significantly shortening the braking distance, improving the limit stability of the vehicle and realizing full working condition coverage.

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