Anti-skid device for vehicles which are driven by asynchronous motors

摘要

An anti-skid device for vehicles which are driven by means of at least one asynchronous motor is disclosed. The method is based on the fact that a quotient is formed from the change over time of a mechanical frequency and a rotor frequency. Output signals can be determined with reference to the sign and the magnitude of this quotient, the said output signals providing information on the instantaneous skidding state. In addition, a control variable by means of which the torque or the tractive force can be set is influenced by reference to this quotient. Furthermore, a device for carrying out the method is disclosed.