Patent ID: 6583599
Filing Date: 2003-06-24
Classification: B60K,B60L,B60W,H02J,Y02T

Abstract:
A system for an automotive vehicle comprising:an internal combustion engine; an energy storage device; a starter/alternator coupled to the engine; a controller coupled to the starter/alternator and to the energy storage device, said controller monitors a state of charge of the energy storage device, a plurality of threshold levels are established for controlling charging of the energy storage device, said controller compares the state of charge to the threshold levels to determine the operation of the starter/alternator, wherein a first threshold of said plurality of threshold levels comprises an engine run threshold, a second threshold of said plurality of threshold levels comprises a boost off threshold, a third threshold of said plurality of threshold levels comprises an engine off threshold, a fourth threshold of said plurality of threshold levels comprises a boost_ok threshold, a fifth threshold of said plurality of threshold levels comprises a charge on threshold, a sixth threshold of said plurality of threshold levels comprises a charge_off threshold, and a seventh threshold of said plurality of threshold levels comprises a bleed off threshold.