Patent ID: 9550523
Date: 2017-01-24
CPC Classifications: B60W,B62D

Claim:
1. A control system for a power steering system, comprising: a control module operable to receive sensor data and control the power steering system, the control module configured to: determine whether a vehicle is operating in a low surface friction condition based on a handwheel angle and one of a handwheel torque and a pinion torque; generate a control signal based on the determination, the control signal indicating an on-center slip based on a combination of: a gradient detect on-center indicator being set, an energy detect on-center indicator being set for an amount of energy expended while steering, and a handwheel steady on-center indicator being set, and the control signal indicating an off-center slip based on a combination of: a gradient detect off-center indicator being set, an energy detect off-center indicator being set, and a handwheel steady off-center indicator being set; and send the control signal to the power steering system.