VERFAHREN UND SYSTEM ZUR STEUERUNG EINES KRAFTMASCHINENKÜHLSYSTEMS
摘要
Methods and systems are providing for improving engine coolant level estimation to reduce engine overheating. The level of fluid in a coolant overflow reservoir is inferred based on the fluid level in a hollow vertical standpipe fluidically coupled to the reservoir at top and bottom locations, while the fluid level in the standpipe is estimated based on echo times of an ultrasonic signal transmitted by a sensor positioned in a recess at the bottom of the vertical standpipe. Sensor output is compensated with a term based on vehicle motion parameters to compensate for fluid level distortion due to motion-induced slosh.
申请公布号
DE102015122214(A8)
申请公布日期
2016.10.06
申请号
DE201510122214
申请日期
2015.12.18
申请人
Ford Global Technologies, LLC
发明人
Rollinger, John Eric;Griffin, Chad Everette;Dietrich, Casey;Jentz, Robert Roy;Huang, Alan;Gerow, Matt