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1. 发明申请

WO1999015355A1 CONTROLLER OF ELECTRIC CAR 审中-公开
标题翻译：电动汽车控制器
公开(公告)号：WO1999015355A1
公开(公告)日：1999-04-01
申请号：PCT/JP1997003386
申请日：1997-09-24
申请人： HITACHI, LTD. , KANEKO, Takashi , ANDO, Takeshi , HORIE, Akira , ITOU, Ken
发明人： HITACHI, LTD.
IPC分类号： B60L09/16
CPC分类号： B60L3/102 , B60L15/025 , B60L2200/26 , Y02T10/643 , Y02T10/646
摘要： A controller of an electric car for controlling a motor which drives a wheel of the electric car by a vector control inverter for controlling the primary current of the motor which is divided into an exciting current component and a torque current component which are respectively controlled by the command values of the components, characterized in that the controller comprises a means which detects the wheel speed (including the rotor frequency of the motor which is proportional to the wheel speed), a means which detects slip and skid of the wheel in accordance with the differential coefficient (change rate with time) of the detected wheel speed, a means which detects the readhesion of the wheel in accordance with the differential coefficient and 2nd order differential coefficient of the detected wheel speed and a means which adjusts the torque current component command value in accordance with the detection results of both the detecting means. The readhesion point of the wheel can be found when the wheel slips or skids, and the torque current component of the motor can be restored in a short time accordingly by utilizing the high speed response of the vector control. Therefore, even in a state such as a rainy weather in which the adhesion factor is small, the torque can be efficiently utilized to a physical adhesion limit, so that the acceleration/deceleration of the electric car can be increased as high as possible.
摘要翻译：一种用于控制通过矢量控制变换器驱动电动车轮的电动机的控制器，用于控制电动机的初级电流，该励磁电流分量和转矩电流分量分别由组件的指令值，其特征在于，控制器包括检测车轮速度（包括与车轮速度成比例的电动机的转子频率）的装置，根据车轮速度检测车轮的滑动和滑动的装置检测到的车轮速度的微分系数（随时间的变化率），根据检测到的车轮速度的微分系数和2阶微分系数检测车轮的再结合的装置以及调整转矩电流分量指令值的装置根据检测装置的检测结果。当车轮滑动或滑行时可以发现车轮的再粘结点，并且通过利用矢量控制的高速响应，可以在短时间内恢复电动机的转矩电流分量。因此，即使在诸如粘附因子小的雨天的状态下，也可以有效地将扭矩用于物理附着极限，从而可以尽可能地提高电动车辆的加速/减速。

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