纯电动公交客车司机驾驶行为差异对能耗的影响

针对相同城市公交线路下纯电动公交客车运行能耗不一致的问题,通过分析线路运行特点,选取电动公交的典型运行片段,研究在典型运行片段中司机的驾驶行为差异及其对运行能耗的影响规律.研究表明,客车出站能耗差异的主要原因在于,出站过程中加速踏板开度分布影响了电机工况点在效率平面的运行路径.进站过程中司机对车速的预测准确性,对滑行能量回收有决定性的影响.通过对进出站过程中加速踏板的合理规划,减少其加速度的离散程度,实现对电机工况轨迹的优化,是解决电动公交客车能耗不一致的有效途径.

Influence of the Driver Behavior Difference on the Energy Consumption of the Pure Electric Buses

The relationship between the difference of the driver behavior and energy consumption in the same bus line was investigated through analyzing the main driving fragment of the driving cycles in order to solve the problem that the practical benefits in endurance mileage of the electric buses differ a lot. It is shown that the essential reason of the difference of energy consumption in the process of out station is the deviaton of the motor operating path in the effi-ciency plane which is the result of acceleration pedal used in different ways. The energy recycled in the inlet parking process is influenced dramatically by the accuracy of vehicle speed prediction and the tendency of deceleration of drivers. An effective management to the motor operating path in the out station and the inlet parking processes is very helpful in narrowing down the difference of the electric buses energy consumption through the minimization of the acceleration dispersion.