SYSTEM AND METHOD FOR COMPENSATING FOR MOTOR MAGNETIC DISTURBANCE OF A COMPASS MEASUREMENT
摘要
A method for correcting a vehicle compass measurement for an interfering magnetic field generated by a vehicle accessory, where the interfering magnetic field has an intensity sufficient to cause a compass measurement error, includes monitoring the operation of the vehicle accessory and detecting a characteristic of operation of the vehicle accessory. A measurement or timing signal is then generated based on the characteristic of operation. A magnetic field for direction is measured in response to the measurement signal and an offset or correction value is determined based at least one the measured magnetic field and the characteristic of operation of the vehicle accessory.
申请公布号
WO2004076973(A1)
申请公布日期
2004.09.10
申请号
WO2004US05460
申请日期
2004.02.24
申请人
JOHNSON CONTROLS TECHNOLOGY COMPANY;OLSON, THOMAS, R.;WITKOWSKI, TODD, R.;WRIGHT, THOMAS, S.
发明人
OLSON, THOMAS, R.;WITKOWSKI, TODD, R.;WRIGHT, THOMAS, S.