发明名称 |
CONTROLLED ENGINE SHUTDOWN FOR A HYBRID ELECTRIC VEHICLE |
摘要 |
This invention is a method and system to control engine shutdown in a hybrid electric vehicle (HEV). The invention allows for reduced tailpipe emissions during the many engine shutdowns and subsequent restarts during the course of an HEV drive cycle and reduced evaporative emissions, during an HEV "soak" (inactive) period. The engine shutdown routine can ramp off fuel injectors, control engine torque (via electronic throttle control), control engine speed, stop spark delivery by disabling the ignition system, stop purge vapor flow by closing a vapor management valve (VMV), stop exhaust gas recirculation (EGR) flow by closing an EGR valve, and flush the intake manifold of residual fuel (vapor and puddles) into the combustion chamber to be combusted. The resulting exhaust gas byproducts are then converted in the catalytic converter. |
申请公布号 |
CA2384542(A1) |
申请公布日期 |
2002.11.03 |
申请号 |
CA20022384542 |
申请日期 |
2002.05.02 |
申请人 |
FORD GLOBAL TECHNOLOGIES, INC. |
发明人 |
ROBICHAUX, JERRY D.;KOTRE, STEPHEN JOHN;PETERS, MARK WILLIAM;BOGGS, DAVID LEE |
分类号 |
B60K6/445;B60W10/06;B60W20/00;F02D17/04;F02D35/00;F02D37/02;F02D41/00;F02D41/04;F02D41/12;F02M25/07;F02M25/08 |
主分类号 |
B60K6/445 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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