An auto stop-start equipped vehicle power management system includes a primary power source supplying energy to an electrical starter to crank a vehicle engine and a secondary power source coupled in parallel to the primary power source. The secondary power source supplies energy to electric loads during an engine auto stop-start operation. The electrical loads maintain vehicle subsystem functionality during the engine auto stop-start operation. The energy supplied to the electrical loads is current limited during the engine auto stop-start operation. A controllable switch decouples the secondary power source from the primary power source and starter motor during the engine auto stop-start operation. Operating parameters of the electrical loads are monitored during the engine auto stop-start operation. If a respective operating parameter threshold associated with the electrical loads is exceeded during the engine auto stop-start operation, then the vehicle engine is automatically restarted and the controllable switch is subsequently closed.
Apparatus and method to maximize vehicle functionality and fuel economy with improved drivability during engine auto stop-start operations
2017-10-03
Patent
Electronic Resource
English
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|Fuel Economy and Cold-Start Drivability with Some Recent-Model Cars
SAE Technical Papers | 1974
|Fuel economy and cold-start drivability with some recent-model cars
Tema Archive | 1974
|An Engine Start/Stop System for Improved Fuel Economy
British Library Conference Proceedings | 2007
|