Automatic Car Steering Using Robust Unilateral Decoupling

نویسندگان

  • Jürgen Ackermann
  • Wolfgang Walter
  • Tilman Bünte
چکیده

In this paper a steering controller is derived using robust unilateral decoupling control. By this method automatic car steering can be split into two subtasks: a) good lane tracking of a point mass for stepwise change of the curvature of the lane reference and for lateral force disturbances and b) good yaw stabilization in the presence of yaw torque disturbances. In the design process the track following controller and the controller stabilizing the yaw rate are designed separately. A Daimler Benz City Bus O 305 used in the Prometheus program and a Pontiac 6000 STE Sedan used in the PATH program give the practical background. In the latter case with higher velocities gain scheduling by the velocity is used. Simulations for these two cars illustrate the advantages of the developed structure.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Robust prevention of limit cycles for robustly decoupled car steering dynamics

Considerable safety benefits are achieved by robustly decoupling the lateral and yaw motions of a car with active steering. Robust unilateral decoupling requires an actuator to generate an additional front wheel steering angle. However, introducing actuators to closed loop systems may cause limit cycles due to actuator saturation and rate limits. Such limit cycles are intolerable w.r.t. safety ...

متن کامل

Robust Decoupling for Active Car Steering Holds for Arbitrary Dynamic Tire Characteristics

A robust decoupling control law was derived for active car steering under some mild assumptions. The control law simpliies the steering transfer function from the steering wheel input commanded by the driver to the lateral acceleration at the front axle. In this paper it will be shown that the decoupling is preserved even if nonlinear diierential equations are assumed as a tire model.

متن کامل

Yaw Disturbance Attenuation by Robust Decoupling of Car Steering

Abstract: Robust decoupling of the lateral and yaw motions of a car has been achieved by feedback of the integrated yaw rate into front wheel steering. In the present paper the yaw disturbance attenuation is analyzed for a generic single-track vehicle model. The frequency limit, up to which yaw disturbances are attenuated, is calculated. For specific vehicle data, it is shown that this control ...

متن کامل

Robust Yaw Damping of Cars withFront and

For a linear model of active car steering a robust decoupling control law by feedback of the yaw rate to front wheel steering was derived earlier. In the present paper this control law is extended by feedback of the yaw rate to rear wheel steering. A controller structure with one free damping parameter k D is derived with the following properties: i) Damping and natural frequency of the yaw mod...

متن کامل

Automatic car steering control bridges over the driver reaction time

Abstract: A car driver needs at least five hundred milliseconds before he can react to unexpected yaw motions. During this time the uncontrolled car may produce a dangerous yaw rate and sideslip angle. Automatic steering control for disturbance rejection is designed such that it bridges over the driver reaction time, but returns the full steering authority to the driver thereafter. The solution...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004