Electric motor servo steering system for e.g. motor vehicle, provides self aligning torque, whose magnitude is independent of deviation between measured and model based yaw rate and lateral acceleration

摘要

The system provides self-aligning torque whose magnitude is varied according to a moment provided by a driver. The magnitude of the torque is independent of a deviation between a measured and model based yaw rate and lateral acceleration or is independent of another magnitude comparable with the former magnitude, such that a high self aligning torque or a hand moment is obtained.