Research on I-Curve Compound Braking Force Distribution Strategy of Four-Wheel Drive Vehicle
Taking the I-curve braking force distribution of four-wheel drive vehicle as the research object,the I-curve composite braking force distribution strategy is proposed,and different control strategies are formulated for medium and low braking strength and high braking strength.Simscapewas used to compare the braking force distribution of the front and rear axles with a fixed ratio and the braking force distribution based on I curve under medium and low braking strength.It is concluded that the fixed ratio distribution braking force is prone to wheel locking in the process of vehicle movement,which cannot make full use of the road adhesion conditions.When braking force distribution is carried out according to curve I,the braking force distribution is more reasonable,and the braking distance is reduced by more than 18%relative to the fixed ratio.The rationality of the proposed compound braking strategy is verified.
Brake SystemBraking Force DistributionSimscape SimulationI Curve
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