首页>
外国专利>
Steering controller for vehicle, estimates motor rotational speed using motor current and drive voltage based on which motor drive circuit is controlled
Steering controller for vehicle, estimates motor rotational speed using motor current and drive voltage based on which motor drive circuit is controlled
A motor driving circuit includes a converter (2) which converts the source voltage and applies to a motor (3). The rotational speed of motor is estimated based on the motor current and drive voltage. The operation of drive circuit is controlled for boosting the power source, when motor speed reaches a set value or exceeds the limit.
展开▼