Continuous engine reverse rotation detection system

Details Continuous engine reverse rotation detection system Continuous engine reverse rotation detection system

2007-03-06

2007-03-06

Wolfe, Jr., Willis R. (Department: 3747)

Internal-combustion engines

Engine speed regulator

C123S491000

Reexamination Certificate

active

11263176

ABSTRACT:
A reverse rotation detection system for an engine with at least one camshaft and a crankshaft includes a camshaft position sensor that generates a camshaft position signal based on a rotation of the camshaft. A second sensor input device generates a crankshaft position signal based on a rotation of the crankshaft. A control module detects a reverse rotation condition of the engine from the camshaft position signal and the crankshaft position signal, wherein the control module compares the camshaft position signal to the crankshaft position signal to determine an engine position. Based on the engine position the control module compares the camshaft position signal to an expected signal to determine a reverse rotation condition.

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patent: 7017556 (2006-03-01), Borg et al.
patent: 7047956 (2006-05-01), Masaoka et al.

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