Patent ID: 9221357
Filing Date: 2015-12-29
Classification: B60L,B60W,H02P,Y02T,Y10S

Abstract:
1. A data processing device for controlling a rotation speed of a motor provided in a vehicle, comprising: a central processing unit (CPU) capable of performing a software processing; a motor speed determining portion capable of detecting whether a rotation speed of the motor is lower or higher than a predetermined value; a computing portion including a correction circuit, and correcting a resolver value which is obtained by counting up a resolver signal outputted from a resolver attached to the motor, wherein the resolver value is corrected by the software processing of the CPU when the rotation speed of the motor is lower than the predetermined value, and wherein the resolver value is corrected by the correction circuit when the rotation speed of the motor is higher than the predetermined value; and a waveform generation portion including a waveform generation circuit, wherein a motor driving waveform is generated by the software processing of the CPU when the rotation speed of the motor is lower than the predetermined value, wherein the motor drive waveform is generated by the waveform generating circuit when the rotation speed of the motor is higher than the predetermined value, and wherein the computing portion includes: