ELECTRIC POWER ASSIST STEERING MOTOR SENSOR REDUNDANCY

摘要

An electric power assist steering motor sensor redundancy system is disclosed comprising a brushless motor selectively providing a first predetermined level of steering assistance for a vehicle. A first sensor and second sensor provide position information of the brushless motor to a motor controller. An alternative sensing system for the brushless motor may be selectively utilized to provide position information of the brushless motor to the controller when at least one of the first sensor or the second sensor fails.

主权项

1. A system, comprising:
an alternative sensing system for a brushless motor that provides a predetermined level of steering assistance to a vehicle, the alternative sensing system being configured to provide position information of the brushless motor to a controller when at least one of a first sensor and a second sensor fails to provide brushless motor position information, wherein the alternative sensing system provides a second predetermined level of steering assistance to the brushless motor, wherein the second predetermined level of steering assistance provides less assistance than the first predetermined level of steering assistance.