Method and apparatus for operating a steering system for a motor vehicle
AssigneeRobert Bosch GmbH
InventorsMatthias Hackl, Wolfgang Kraemer
Life of this patent
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Abstract
A steering system for a motor vehicle with at least one steerable wheel, an actuator, and an auxiliary drive. The steering motion initiated by the driver of the vehicle and the motion initiated by the actuator are superimposed by the auxiliary drive to generate the steering motion of the steerable wheel. At least two steering components are computed and a control signal is generated to control the actuator by superimposing the computed steering components. The steering components are computed in parallel and independently of one another so that several functions are beneficially combined to control running behavior. This provides an improvement of running dynamics by means of steering interventions.
Claims11
Method for operating a steering system for a motor vehicle which has one steerable wheel (15), an actuator (13;
- 23), and an auxiliary drive (12;
- 22), the method comprising:
- superimposing a steering angle initiated by a driver of the vehicle and an angle initiated by said actuator (13;
- 23) to generate a steering motion of the steerable wheel by:
- computing at least two steering components in parallel and independently of one another;
- coordinating the computed steering components as a function of an instantaneous prevailing running state;
- generating a control signal by superimposing the coordinated steering components, and controlling the actuator by means of the generated control signal to initiate the motion.
Apparatus for operating a steering system for a motor vehicle comprising:
- a steerable wheel (15), an actuator (13;
- 23), and an auxiliary drive (12;
- 22), wherein a steering angle initiated by a driver of the vehicle and an angle initiated by the actuator are superimposed by the auxiliary drive to generate the steering motion of the steerable wheel;
- means for computing two steering components arranged in parallel and independently of one another;
- means for coordinating the computed steering components as a function of an instantaneous prevailing running state:
- means for generating a control signal by superimposing the coordinated steering components;
- and
- controlling the actuator (13;
- 23) by means of the generated control signal to initiate the motion.
Dependencies are inferred from the claim text.