Loading patent…
AssigneeSchaeffler Technologies AG & Co. KG
InventorErhard Hodrus
Estimating the term…
A motor braking procedure is controlled for an electric motor that provides a drive torque for a vehicle and is driven electrically by an inverter circuit having a plurality of switching elements via at least two motor connections and has a rotor rotateable at a motor speed. A braking switch position is adopted by the inverter circuit in braking switch position intervals. An open switch position is adopted by the inverter circuit in open switch position intervals. The braking switch position intervals are alternately switched with the open switch position intervals based on a motor speed being less than a limit speed during the motor braking procedure. The rotor, during the electric motor braking procedure, is subject to a speed-dependent braking torque based on the inverter circuit adopting a braking switch position and is subject to a braking torque less than that in the braking switch position or no braking torque based on the inverter circuit adopting an open switch position.
A method for controlling a motor braking procedure of an electric motor that provides a drive torque for a vehicle and is driven electrically by an inverter circuit having a plurality of switching elements via a plurality of motor connections and has a rotor rotateable at a motor speed, the method comprising:
An electric motor device for providing a drive torque for a vehicle, comprising:
Dependencies are inferred from the claim text.