Patent ID: 7496436
Filing Date: 2009-02-24
Classification: B62D

Abstract:
1. A method for assisting an operator of a vehicle in stabilizing the vehicle, wherein the vehicle includes a steering line and wherein an additional steering torque is applied to the steering line of the vehicle, the method comprising the steps of detecting an unstable driving condition, determining a value of a reference yaw rate based on a vehicle model by way of a value of at least one variable predefined by the operator, determining an instantaneous value of a yaw rate, determining an instantaneous steering angle, determining a nominal steering angle, determining a first component of the additional steering torque depending on a steering angle difference between the instantaneous steering angle at steerable wheels of the vehicle and the nominal steering angle, wherein the steering angle difference depends on the difference between the instantaneous value of the yaw rate of the vehicle and the value of the reference yaw rate, applying the additional steering torque to the steering line, and withdrawing the additional steering torque when the absolute value of the instantaneous yaw rate drops below the value of the reference yaw rate determined at the start of the instable driving condition.