Method and control circuit for controlling an electrical drive of an electrically driven compressed air compressor of a motor vehicle
AssigneeMan Truck & Bus AG
InventorAndreas Hase
Life of this patent
Estimating the term…
Abstract
A method for controlling an electrical drive of an electrically driven air compressor of a motor vehicle and a corresponding control circuit. A prevailing load torque of the air compressor that is applied at a drive shaft of the compressed air compressor is estimated as a function of at least one operating parameter and is fed forward as an estimated disturbance variable to the control circuit of the electrical drive to reduce a control error produced as a result of the prevailing load torque.
Claims10
A method for controlling an electrical drive of an electrically driven air compressor of a motor vehicle, comprising:
- estimating a prevailing load torque of the air compressor applied at a drive shaft of the air compressor based at least in part on at least one operating parameter;
- and
- feedforward the estimated prevailing load torque as an estimated disturbance variable to a control circuit of the electrical drive to reduce a control error produced based at least in part on the prevailing load torque.
A control circuit for controlling an electrical drive of an electrically driven air compressor of a motor vehicle, wherein the control circuit is configured to:
- (a) estimate a prevailing load torque of the compressor that is applied at a drive shaft of the compressor as a function of at least one operating parameter and
- (b) feedforward the estimated load torque as an estimated disturbance variable to the control circuit of the electrical drive to reduce a control error that is produced as a result of the prevailing load torque.
A motor vehicle, comprising:
- an electrically driven air compressor configured to supply a pneumatic compressed air braking system in a commercial vehicle;
- and
- control circuit is configured to:
- (a) estimate a prevailing load torque of the compressor that is applied at a drive shaft of the compressor as a function of at least one operating parameter;
- and
- (b) feedforward the estimated load torque as an estimated disturbance variable to the control circuit of the electrical drive to reduce a control error that is produced as a result of the prevailing load torque.
Dependencies are inferred from the claim text.