TECHNIQUES FOR LIMITING ELECTRICAL CURRENT PROVIDED TO A MOTOR IN AN ELECTRIC POWER STEERING SYSTEM

Techniques for limiting electrical current provided to a motor for an electric power steering system are provided. A first estimated temperature of the motor is determined for a first time step. The first estimated temperature of the motor is filtered to produce a first filtered estimated temperature of the motor. A second estimated temperature of the motor is determined for a second time step subsequent to the first time step. The first filtered estimated temperature is compared with the second estimated temperature to determine whether the motor is heating or cooling. The filter is adjustedin response to determining whether the motor is heating or cooling. The second estimated temperature of the motor is filtered with the adjusted filter to produce a second filtered estimated temperature of the motor. A limit on electrical current provided to the motor is set using the second filtered estimated temperature. 提供了用于限制提供给电动转向系统的电动机的电流的技术。针对第一时间步骤确定电动机的第一估计温度。对电动机的第一估计温度进行滤波，以产生电动机的第一滤波估计温度。针对第一时间步骤之后的第二时间步骤确定电动