Method of learning gain for throttle control motor

Details Method of learning gain for throttle control motor Method of learning gain for throttle control motor

1990-07-02

1991-07-23

Dolinar, Andrew M.

Internal-combustion engines

Engine speed regulator

Idle speed control

123361, 123399, F02D 4100

Patent

active

050334310

ABSTRACT:
An idle speed control motor under computer control positions a throttle stop for setting minimum throttle angles. The motor response to actuating pulses varies from motor to motor so that a gain factor is determined for each motor and is used to calculate the required pulse width to attain a desired throttle displacement. A gain learn program in the engine control computer runs when the ignition is turned off and is effective to extend the motor with a number of pulses of known width, measure the throttle displacement, and determine the gain factor by dividing a standard displacement by the measured displacement. The same program is applied to learning the gain of a throttle motor in an electronic throttle control system.

REFERENCES:
patent: 4506642 (1985-03-01), Pfalzgraf et al.
patent: 4519361 (1985-05-01), Murakami
patent: 4622936 (1986-11-01), Junginger et al.
patent: 4773370 (1988-09-01), Koshizawa et al.

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