SYSTEM AND METHOD FOR DETECTING COLD ENGINE OPERATION

摘要

A system and method for detecting cold engine operation include determining at least two fluid temperatures and providing a cold engine outuput signal based on the at least two temperatures. An engine coolant temperature (22), an intercooler temperature (26), and an engine air temperature (24) are determined via appropriate temperature sensors. The cold engine output signal is activated or aserted if any one of the at least two fluid temperature is below a corresponding temperature threshold. The cold engine output signal is deactivated when all of the fluid temperature are above corresponding temperature thresholds (plus hysteresis where applicable).