Invention Application
US20120316751A1 SYSTEM AND METHOD FOR MONITORING ENGINE OIL PRESSURE 有权
用于监测发动机油压的系统和方法

SYSTEM AND METHOD FOR MONITORING ENGINE OIL PRESSURE
Abstract:
A system and method for determining the oil pressure of an internal combustion engine is disclosed herein. The system and/or method may estimate the oil pressure using the response of two variable camshaft timing actuators having respective phase angle change control signals. Specifically, the signals may be used to determine whether the oil pressure is below a low oil pressure threshold value. The rate of response of the actuators may also be used to determine a current engine oil pressure.
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