METHOD FOR OPERATING AN ELECTRIC MOTOR FOR BRAKING A VEHICLE, AND CONTROL DEVICE FOR AN ELECTRIC MOTOR DESIGNED AT LEAST FOR BRAKING A VEHICLE

摘要

A method for operating an electric motor for braking a vehicle, including controlling the electric motor in such a way that the vehicle is slowed or decelerated with the aid of a motor braking torque exerted by the controlled electric motor. The method includes ascertaining whether a requested setpoint speed change is in a predefined normal range, and if so, the electric motor is controlled in such a way that a load to be applied by the electric motor remains less than or equal to a nominal load capacity of the electric motor. If the requested setpoint speed change is outside the predefined normal range, the electric motor is controlled in such a way that the load to be applied by the electric motor exceeds the nominal load capacity of the electric motor, at least during a predefined overload operation time interval.

主权项

1. A method for operating an electric motor for braking a vehicle, comprising:
controlling the electric motor in such a way that the vehicle is slowed or decelerated at least with the aid of a motor braking torque exerted by the controlled electric motor on at least one of: i) at least one wheel, and ii) at least one axle of the vehicle, the electric motor being controlled with regard to a setpoint speed change requested by one of a driver of the vehicle or an autonomous automatic control system of the vehicle, taking at least one default signal into account; ascertaining whether the requested setpoint speed change is in a predefined normal range, taking the at least one default signal into account; if the requested setpoint speed change is in the predefined normal range, controlling the electric motor in such a way that a load to be applied by the electric motor remains less than or equal to a nominal load capacity of the electric motor; and if the requested setpoint speed change is outside the predefined normal range, controlling the electric motor in such a way that a load to be applied by the electric motor exceeds the nominal load capacity of the electric motor, at least during a predefined overload operation time interval.