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Research on Motor Braking-based DYC Strategy for Distributed Electric Vehicle

机译:分布式电动汽车运动制动基于动力学的DYC策略研究

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In order to bring into full play the advantages of motor braking and enhance the handling stability of distributed electric vehicle, a motor braking-based direct yaw moment control (DYC) strategy was proposed. This strategy could identify whether a vehicle has under-steered or overs-steered, to calculate the direct yaw moment required for vehicle steering correction by taking the corrected yaw velocity deviation and slip-angle deviation as control variables, and exert motor braking moment on the target wheels to perform correction in the manner of differential braking. For validation of the results, a combined simulation platform was set up finally to simulate the motor braking control strategy proposed. As shown by the results, the motor braking-based DYC strategy timely adjusted the motor braking moment and hydraulic braking moment on the target wheels, and corrected the steering deviation and sideslip of the vehicle in unstable state, improving the handling stability.
机译:为了充分发挥电机制动的优点,提高分布式电动车的处理稳定性,提出了一种基于电动机制动的直接横摆力量控制(DYC)策略。该策略可以识别车辆是否具有引导或过度转向,以通过采用校正的偏航速度偏差和滑角偏差作为控制变量来计算车辆转向校正所需的直接横摆力矩,并施加电动机制动力矩靶轮以差动制动方式进行校正。为了验证结果,最终设置了一个组合的仿真平台,以模拟提出的电动机制动控制策略。如结果所示,基于电动机制动的DYC策略及时调整了靶轮上的电动机制动力矩和液压制动力矩,并在不稳定状态下校正了车辆的转向偏差和侧滑,提高了处理稳定性。

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