Intake manifold valve system, method, and diagnostic

Details Intake manifold valve system, method, and diagnostic Intake manifold valve system, method, and diagnostic

2005-09-20

2005-09-20

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

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

C123S442000, C123S188140

Reexamination Certificate

active

06945226

ABSTRACT:
A valve control and diagnostic system uses physical stops to determine whether a connection between the valve motor and the valves has become degraded. The method can detect degradation in both the opening and closing direction, as well as in multi-valve systems, such as used on internal combustion engines.

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