专利检索 ap:("Rimas Petrosius" OR "James Beaucaire" OR "Douglas Villacreses" OR "Michael Majewski") AND inv:"Douglas Villacreses" 第 1 页

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发明申请
Strategy for detecting use of a block heater and for modifying temperature-dependent variables to account for its use 有权

公开(公告)号：US20070084427A1

公开(公告)日：2007-04-19

申请号：US11253475

申请日：2005-10-19

申请人： Rimas Petrosius , James Beaucaire , Douglas Villacreses , Michael Majewski

发明人： Rimas Petrosius , James Beaucaire , Douglas Villacreses , Michael Majewski

IPC分类号： F02N17/02 , G06F19/00 , B60L1/02

CPC分类号： F02M31/13 , F01P2037/02 , F02B3/06 , F02D41/06 , F02D41/064 , F02N19/02 , Y02T10/126

摘要： A diesel engine (100) has a control system (102) that processes certain data to develop data values for one or more temperature-dependent variables, such as injection control pressure (ICP), that affect engine starting and ensuing warm-up. The control system also processes data for detecting a temperature differential in the engine indicative of a block heater (126) having been used to heat the engine prior to cranking. Upon detection of such temperature differential, the control system selects a temperature data source from multiple available temperature data sources, namely engine coolant temperature ECT, engine oil temperature EOT, and charge air temperature AIT, and processes temperature data from the selected source with additional data to develop data values for one or more of the temperature-dependent variables.