A torque control module 10 for a propulsive torque source 20 of a vehicle, typically a hub motor of a wheel, has a controller 11 receiving a signal indicating the acceleration of a vehicle component, typically a wheel. Module 10 compares the component acceleration to a threshold component acceleration corresponding to a threshold vehicle acceleration, for example a plausible acceleration, to determine whether a wheel slip event has occurred. The accelerations may be linear or angular; in an embodiment the threshold may be a linear acceleration of 20 m/s2. The acceleration threshold may be modified dependent on a parameter such as speed, pitch or a selected operating mode. Dependent on the determined and threshold accelerations, a control signal is outputted to reduce a propulsive torque applied to the wheel. The system may be used with an anti-lock braking module.
Torque control module
2019-08-14
Patent
Elektronische Ressource
Englisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |