Method of regulating the position of a clutch actuator
AssigneeLuK Lamellen und Kupplungsbau Beteiligungs KG
InventorsThomas Jäger, Reinhard Berger, Martin Zimmermann, Georg Schneider, Mario Jung, Jürgen Gerhart, Alexander Renfer
Life of this patent
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Abstract
A method of regulating the position of a clutch actuator in a vehicle employs the concept of adapting the servo-loop parameters of a position controller of the clutch to different operating conditions of the vehicle, as well as the concept of applying and continuously adapting a bias current of the actuator motor in order to avoid or minimize the incidence of a hunting or after-regulation behavior of the control loop and to thereby minimize the energy consumption of the actuator motor.
Claims31
A method of regulating a position of a clutch actuator in a vehicle that is equipped with a clutch control device, wherein the clutch control device performs the steps of:
- a) determining a current operating state of the vehicle based on a plurality of operating parameters of the vehicle;
- b) selecting a set of regulation parameters out of a plurality of available sets of regulation parameters;
- c) regulating the position of the clutch actuator through a position-control loop using the selected set of regulation parameters;
- wherein the position-control loop comprises a proportional part, an integrating part, and a differentiating part and each set of regulation parameters comprises a P-coefficient for the proportional part, an I-coefficient for the integrating part, and a D-coefficient for the differentiating part, and wherein each set of regulation parameters further comprises precision criteria, as well as switch-off limits and switch-on limits of the position-control loop.
A method of regulating a position of a clutch actuator in a vehicle that is equipped with a clutch and a clutch control device, wherein the clutch control device regulates a position of the clutch actuator by performing the steps of:
- a) determining an actual position of the clutch actuator;
- b) comparing the actual position to a target position of the clutch actuator;
- c) determining a magnitude and direction of an after-regulation occurring in the clutch actuator;
- and
- d) updating an amount of a bias current supplied to the clutch actuator in accordance with the magnitude and direction of the after-regulation detected under step c).
A method of regulating a position of a clutch actuator in a vehicle that is equipped with a clutch and a clutch control device, said method comprising the steps of:
- a) determining actual position values Kactual of the clutch actuator;
- b) determining targeted position values Ktarget of the clutch actuator;
- c) determining whether an initial move to a targeted position or an after-regulation to the targeted position is taking place, based on comparing the actual position values and the targeted position values;
- and
- d) generating a bias current to the clutch actuator in accordance with the results of steps a) to c).
Dependencies are inferred from the claim text.