A system and method for detecting a fault in a pressure sensor that measures a pressure in a hydraulic valve actuation system

摘要

A system according to the present disclosure includes a pressure estimation module and an error detection module. The pressure estimation module estimates a pressure of hydraulic fluid in a valve actuation system that actuates an intake valve and / or an exhaust valve of an engine. The error detection module compares the estimated pressure with a pressure measured by a pressure sensor located in the valve actuation system and detects an error in the pressure sensor based on a difference between the estimated pressure and the measured pressure.