Throttle valve control device

Details Throttle valve control device Throttle valve control device

1997-12-16

2000-07-18

Lee, Kevin

Valves and valve actuation

Electrically actuated valve

Remote or follow-up control system for electrical actuator

123361, 123399, F02D 4122

Patent

active

060895357

ABSTRACT:
The throttle valve control device of this invention controls a throttle based on outputs of a position sensor including a first sensor and a second sensor which detect a position of a same object, wherein the output of the first sensor and the output of the second sensor change opposite to each other depending on a change in the position of the object, and the throttle valve control device determines the position sensor abnormal when a variation in the output of the first sensor is equal to or greater than a first threshold value and a variation in the output of the second sensor is equal to or greater than a second threshold value.

REFERENCES:
patent: 4915074 (1990-04-01), Arai
patent: 5669353 (1997-09-01), Shirai et al.
patent: 5823164 (1998-10-01), Seki et al.
patent: 5983860 (1999-11-01), Kitamura et al.

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