考虑制动力矩限制的BEV再生制动控制策略研究OA

To further enhance the energy utilization rate and mileage of battery electric vehicle,improve braking safety,and reduce the damage to the battery during regenerative braking,a front-wheel drive battery electric vehicle was used as the research object,and a vehicle model was established through AVL Cruise.Under the premise of considering the braking torque limit,a regenerative braking control strategy was designed.At the same time,in view of the slow response of mechanical braking during compound braking transition and to further ensure the stability and safety of braking,the front and rear axle braking force distribution curves were optimized,and the fuzzy controller was used to perform secondary distribution of the braking force of the front axle.Finally,the control strategy model was built in Simulink.The results of the joint simulation test show that under the NEDC cycle and CLTC-P cycle conditions,the proposed strategy achieves energy recovery efficiencies of 14.11%and 19.86%respectively,and the mileage contribution rate was 15.32%and 20.32%respectively.Compared with the baseline strategy,the overall energy economy is improved,thereby further verifying the effectiveness of the proposed approach.