Park control systems and methods operate such that, in response to a request to engage or disengage a park pawl of a vehicle park pawl system, a controller commands a hydraulic brake system to maintain a hydraulic brake pressure therein generated in response to depression of a brake pedal by a driver of the vehicle, when vehicle movement is detected after maintaining the hydraulic brake pressure, commands a vacuum-independent electric brake booster to generate and provide additional hydraulic brake pressure to the hydraulic brake system, commands the park pawl system to engage or disengage the park pawl to/from a transmission output shaft, and after the park pawl is engaged or disengaged to/from the transmission output shaft, commands the hydraulic brake system to release its hydraulic pressure at a defined rate.
Electromechanical park brake strategy for transmission park pawl engagement
09.08.2022
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 / F16H Getriebe , GEARING / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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