公开(公告)号：US09194321B1

公开(公告)日：2015-11-24

申请号：US14469907

申请日：2014-08-27

Applicant: GM Global Technology Operations LLC

Inventor： Thomas F. Porlick ,  Kevin A. Sherwin ,  Layne K. Wiggins

IPC: F02D41/22 ,  F02D41/00 ,  F02D41/26

CPC classification number: F02D41/222 ,  F02D41/009 ,  F02D41/22 ,  F02D41/263 ,  F02D2041/281 ,  F02D2200/101 ,  F02D2200/1012 ,  F02N11/0851 ,  F02N2200/021 ,  F02N2200/022 ,  F02N2200/041 ,  Y02T10/40

Abstract: A system according to the principles of the present disclosure includes a starter control module, an engine speed module, and a sensor diagnostic module. The starter control module generates a starter engage signal to engage a starter of an engine. The engine speed module determines a speed of the engine based on input from at least one of a camshaft position sensor and a crankshaft position sensor. The sensor diagnostic module selectively diagnoses a fault in the at least one of the camshaft position sensor and the crankshaft position sensor based on a rate of change in the engine speed before the starter engage signal is generated.

Abstract translation: 根据本公开的原理的系统包括起动器控制模块，发动机速度模块和传感器诊断模块。 起动器控制模块产生起动器接合信号以接合发动机起动器。 发动机速度模块基于来自凸轮轴位置传感器和曲轴位置传感器中的至少一个的输入来确定发动机的速度。 传感器诊断模块基于起动器接合信号产生之前的发动机转速的变化率来选择性地诊断凸轮轴位置传感器和曲轴位置传感器中的至少一个中的故障。