A stop-start system and method for a motor vehicle include a controller configured to shut down an engine of the motor vehicle automatically when the motor vehicle is moving and a predetermined engine shut down condition is achieved, to perform a rolling stop-start operation; and a mechanically driven auxiliary vacuum pump coupled to a transmission gear or output shaft and configured to provide vacuum pressure to a brake booster of the motor vehicle, wherein the controller is configured to operate the auxiliary vacuum pump during the rolling stop-start operation.
A stop-start system for a motor vehicle
2019-11-27
Patent
Electronic Resource
English
IPC: | F02N STARTING OF COMBUSTION ENGINES , Anlassen von Brennkraftmaschinen / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / 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 |