Method and device for temperature-dependent control of an electric motor
AssigneeAudi AG
InventorsAndré Wesenberg, Mirko Reuter
Life of this patent
Estimating the term…
Abstract
An apparatus for temperature-dependent control of an electric motor, includes a control device for adjusting the power output of the electric motor, and means for detecting the temperature of a component of the electric motor, wherein the control device reduces the power of the electric motor in the case of a component temperature above a temperature threshold, and wherein the temperature detection means distinguish between self-heating and external heating, wherein the control device counteracts only the self-heating by reducing the power.
Claims15
-14. (canceled)
A method for temperature-dependent control of an electric motor comprising:
- setting a power output of the electric motor;
- detecting a temperature of a component of the electric motor;
- distinguishing between a self-heating and an external heating of the electric motor when the temperature of the component changes;
- counteracting the self-heating by reducing the power of the electric motor.
A device for temperature-dependent control of an electric motor, comprising:
- means for detecting a temperature of a component of the electric motor, said means being configured to determine whether the electric motor is heated as a result of a self-heating or external heating;
- and
- a control device for adjusting a power output of the electric motor, said control device being configured to reduce the power output of the electric motor when the temperature of the component is above a threshold temperature only when the means determine that the electric motor is heated as a result of self-heating.
A vehicle comprising a device for temperature-dependent control of an electric motor according, said device comprising:
- means for detecting a temperature of a component of the electric motor, said means being configured to determine whether the electric motor is heated as a result of a self-heating or external heating;
- and
- a control device for adjusting a power output of the electric motor, said control device being configured to reduce the power output of the electric motor when the temperature of the component is above a threshold temperature only when the means determine that the electric motor is heated as a result of self-heating
Dependencies are inferred from the claim text.