Electronic control system for single and series throttle valves

Details Electronic control system for single and series throttle valves Electronic control system for single and series throttle valves

1995-03-03

1996-05-28

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Having plural throttle valve structure

123442, F02D 902

Patent

active

055201466

ABSTRACT:
An electronic controller for automatically adjusting the position of a throttle valve in either a single valve or a series valve throttle mechanism. A primary controller (20) produces an output signal (18) suitable for directly operating the single throttle valve in a "drive by wire" throttle system. When used to position a valve (32) in a two-valve series throttle system, the other valve (34) being directly controlled by the accelerator pedal, a signal translation unit (30) is employed to modify the output signal (18) from the primary controller in response to the current setting of the accelerator-controlled valve (34) and values indicating the current air flow rate (Q.sub.1) and the intake manifold pressure (P.sub.m). The primary controller (20) and the signal translation unit are implemented using a conventional electronic engine control processor, with the signal translation being performed by table lookup operations (51-54).

REFERENCES:
patent: 4484551 (1984-11-01), Choma et al.
patent: 4637487 (1987-01-01), Nakamura et al.
patent: 4722411 (1988-02-01), Ohashi et al.
patent: 4982710 (1991-01-01), Ohta et al.
patent: 4995364 (1991-02-01), Kamei et al.
patent: 5105360 (1992-04-01), Akiyama
patent: 5124922 (1992-06-01), Akiyama
patent: 5220828 (1993-06-01), Sodeno et al.
patent: 5431139 (1995-07-01), Grutter et al.

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