Patent ID: 9260036
Filing Date: 2016-02-16
CPC Classification: B60K,B60L,B60W,B60Y,G01D,H02P,Y02T,Y10S

Claim Text:
1. A system for controlling a vehicle drivetrain, comprising: an electric rotating machine coupled to the vehicle drivetrain; an angular position sensor coupled to the electric machine and configured to generate a sensor output signal indicating an angular position of the electric rotating machine; a sensor digital converter coupled to the angular position sensor, the sensor digital converter configured to generate a converter output signal using the sensor output signal, wherein the converter output signal includes a first error due to the angular position sensor, and a second error due to the sensor digital converter; an error correction controller coupled to the sensor digital converter and configured to analyze the converter output using at least a spectral analysis and a Fourier analysis to generate a corrected position signal compensating for the first and second errors; and a motor controller responsive to the corrected position signal received from the error correction controller, the motor controller configured to use the corrected position signal to operate the electric rotating machine at a first angular speed.