Method for controlling an electric actuator
AssigneeThyssenkrupp Presta AG
InventorMichele Sigilló
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Abstract
A method for controlling an electric actuator may involve determining with a controller a manipulated variable T1 of an actuating motor, in order, starting from an actual position X as a state variable to reach a target position Xd. The method may further involve calculating a control value of the electric actuator based on the manipulated variable T1. The manipulated variable T1 of the actuating motor may be calculated by using a second time derivative of the target position d2Xd/dt2 and an achieved control change ΔX|τ−ΔX|0, wherein ΔX|τ=Difference target−actual position at time τ and ΔX|0=Difference target−actual position at time t=t0.
Claims18
-17. (canceled)
A method for controlling an electric actuator, the method comprising:
- determining with a controller a manipulated variable T1 of an actuating motor, in order, starting from an actual position X as a state variable to reach a target position Xd;
- and
- calculating a control value of the electric actuator based on the manipulated variable T1, wherein the manipulated variable T1 is calculated by using a second time derivative of the target position d2Xd/dt2 and an achieved control change ΔX|τ−ΔX|0, wherein
- ΔX|τ=a difference target−an actual position at a time τ
- and
- ΔX|0=a difference target−an actual position at a time t=t0.
A method for controlling an electric actuator of a motor vehicle steering system with an electric auxiliary drive, the method comprising:
- determining with a controller a manipulated variable T1 of an actuating motor, in order, starting from an actual position X as a state variable to reach a target position Xd, wherein the actual position X as the state variable is a position of at least one of a rack or a pivoting angle of a wheel;
- and
- calculating a control value of the electric actuator based on the manipulated variable T1, wherein the manipulated variable T1 is calculated by using a second time derivative of the target position d2Xd/dt2 and an achieved control change ΔX|τ−ΔX|0, wherein
- ΔX|τ=a difference target−an actual position at a time
- and
- ΔX|0=a difference target−an actual position at a time t=t0.
An electromechanical motor vehicle steering system having a controller for controlling an electric actuator, wherein the controller is configured to
- determine a manipulated variable T1 of an actuating motor, in order, starting from an actual position X as a state variable to reach a target position Xd;
- and
- calculate a control value of the electric actuator based on the manipulated variable T1, wherein the manipulated variable T1 is calculated by using a second time derivative of the target position d2Xd/dt2 and an achieved control change ΔX|τ−ΔX|0, wherein
- ΔX|τ=a difference target−an actual position at a time
- and
- ΔX|0=a difference target−an actual position at a time t=t0.
Dependencies are inferred from the claim text.