Electronic throttle control unit for engine

Details Electronic throttle control unit for engine Electronic throttle control unit for engine

2006-12-05

2006-12-05

Huynh, Hai (Department: 3747)

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

C123S361000

Reexamination Certificate

active

07143745

ABSTRACT:
An electronic throttle control unit for an engine can perform precise control by using a single inexpensive AD converter. The unit includes an electronic throttle that controls an engine, a throttle opening detection section that detects the throttle opening of the electronic throttle, and a control section that controls the throttle opening to a target value in accordance with an operating condition of the engine. The throttle opening detection section includes a throttle opening sensor that generates a sensor voltage corresponding to the throttle opening, an offset part that converts the sensor voltage into a plurality of voltages with offsets, a distribution circuit for distributing the voltages with offsets to a single path, an AD converter that AD converts the voltages distributed to the single path; and a distribution switching section that performs distribution switching control of the distribution part, wherein the distributed voltages are detected as a final throttle opening to be controlled.

REFERENCES:
patent: 6089535 (2000-07-01), Mizutani et al.
patent: 6123056 (2000-09-01), Shimada et al.
patent: 6647958 (2003-11-01), Yokoyama et al.
patent: 2006/0060168 (2006-03-01), Watanabe et al.
patent: 06-101550 (1994-04-01), None
patent: 10-222205 (1998-08-01), None
patent: 2003-028001 (2003-01-01), None

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