基于纯电动汽车的驾驶性评价技术研究

纯电动汽车由电机直接驱动车辆,电机具备转矩动态响应快、低速时输出大转矩特性,对电机转矩控制不合理会造成车辆纵向窜动、驾乘人员眩晕的不适驾乘体验。基于纯电动汽车,对车辆驾驶性评价技术进行研究,分析了驾驶性主要影响因素,提出了驾驶性评价工况、主观评价指标、客观评价指标,同时根据客观评价方法可进行驾驶性验证优化,提升车辆驾驶性能及乘坐舒适性。

Research on Drivability Evaluation Technology Based on Pure Electric Vehicle

The pure electric vehicle is driven directly by the motor.The motor has the characteristics of fast response of dynamic torque,output large torque at low speed.The unreasonable control of the motor torque can cause the vehicle longitudinal shock and uncomfortable driving experience,such as dizziness of the driver and passenger.Based on the pure electric vehicle,this paper studies the vehicle drivability evaluation technology,analyzes the main influencing factors of drivability,and proposes the drivability evaluation condition,subjective evaluation index and objective evaluation index.Meanwhile,according to the objective evaluation method,drivability verification and optimization can be carried out to improve the vehicle driving performance and comfort.