Patent ID: 8571758
Filing Date: 2013-10-29
Classification: B60T,B62D

Abstract:
1. A device for continuously updating a steering wheel angle offset value of a vehicle steering system to adapt to changing road conditions, the device comprising one or more processors, the one or more processors configured to receive a plurality of vehicle parameter values, each from a different vehicle sensor; calculate a plurality of observed steering angle values, each using a different calculation method based on one or more of the plurality of vehicle parameter values; calculate a vehicle steering angle based on the plurality of observed steering angle values; calculate a steering wheel angle offset value based on the difference between a steering wheel angle and the calculated vehicle steering angle; generate a command signal to control a vehicle steering system based on the steering wheel angle and the calculated steering wheel angle offset value; and repeatedly calculate subsequent steering wheel angle offset values based on subsequent pluralities of observed steering angle values throughout continuous operation of the vehicle.