Method for monitoring an auxiliary pump for a hybrid powertrain
摘要
A powertrain system includes a hybrid transmission coupled to an engine and an auxiliary hydraulic pump. The auxiliary hydraulic pump is commanded to operate at a predetermined speed only when enable criteria are met. An engine-off state is inhibited based upon a difference between a commanded speed and a monitored operating speed of the auxiliary hydraulic pump.
申请公布号
EP2055608(A2)
申请公布日期
2009.05.06
申请号
EP20080019082
申请日期
2008.10.31
申请人
GM GLOBAL TECHNOLOGY OPERATIONS LLC;DAIMLER AG;CHRYSLER LLC;BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT
发明人
WU, PETER E.;NAQVI, ALI K.;TRIERWEILER, REBECCA;NAQI, SYED;MARTINI, RYAN D.