METHOD AND SYSTEM OF REQUESTING ENGINE ON/OFF STATE IN HYBRID ELECTRIC VEHICLE

申请公布号：US2005061563(A1)

申请号：US20030605290

申请日期：2003.09.19

申请公布日期：2005.03.24

申请人：

FORD GLOBAL TECHNOLOGIES, LLC

发明人：SYED FAZAL U.;MCGEE RYAN A.;ANTHONY JOSEPH W.

分类号：B60W20/00;B60K6/48;B60L11/14;B60W10/06;B60W10/10;B60W10/26;F02D29/00;F02D29/02;F02D45/00;F02N11/04;(IPC1-7):B60K6/00

主分类号：B60W20/00

摘要：A method and system of engine start/stop control for a HEV that monitors the battery and requests a specific engine state based on condition of the battery. A battery parameter such as discharge power limit (DPL) or state of charge (SOC) is compared with a set of threshold levels including a MIN level, an ON level, and an OFF level and the result of the comparison provides inputs to a state machine. The state machine includes an ON state, an OFF state and a OPPORTUNISTIC state. The machine transitions between the various states as a function of DPL and SOC relative to the sets of threshold levels.

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