Throttle opening degree detection apparatus

Details Throttle opening degree detection apparatus Throttle opening degree detection apparatus

1997-11-20

2000-03-07

McCall, Eric S.

Measuring and testing

Vehicle chassis

Steering

G01M 1500

Patent

active

060325194

ABSTRACT:
A throttle opening degree detection apparatus installed to an engine of a vehicle comprises a idle-up section which directly changes a throttle value opening degree to improve an engine starting characteristic under an engine cold condition and a sensor device which detects the operation of the idle-up section. The apparatus further includes a first learning section which updates a full close reference value under inoperative condition of the idle-up section and a second learning section which updates the full close reference value under idle-up section operating condition. The apparatus calculates a throttle opening degree on the basis of a difference between a throttle detection signal of a throttle sensor and the full close reference value.

REFERENCES:
patent: 4989147 (1991-01-01), Ishii
patent: 5024197 (1991-06-01), Nakamura
patent: 5157956 (1992-10-01), Isaji et al.
patent: 5586534 (1996-12-01), Fujimoto

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