Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1983-04-25
1985-02-26
Lall, Parshotam S.
Internal-combustion engines
Charge forming device
Fuel injection system
123494, F02M 5100
Patent
active
045012490
ABSTRACT:
A fuel injection control apparatus for controlling the amount and the timing of fuel injection with the aid of a microcomputer includes a hot-wire type flow sensor for detecting an instantaneous intake air flow velocity within an intake air passage of an internal combustion engine. The output signal of the hot-wire type flow sensor is sampled at every predetermined crank angle or at every predetermined time point to be stored in a RAM. The time at which the instantaneous velocity of the intake air flow within the intake passage becomes maximum is detected. The fuel injection timing of a fuel injection valve disposed in the intake passage is so controlled that the fuel injection is terminated around the time point at which the instantaneous intake air flow velocity is maximum.
REFERENCES:
patent: 4089214 (1978-05-01), Egami et al.
patent: 4392471 (1983-07-01), Miyagi et al.
patent: 4442818 (1984-04-01), Kashiwaya et al.
patent: 4448172 (1984-05-01), Kashiwaya et al.
patent: 4455985 (1984-06-01), Asayama
Amano Matsuo
Hirayama Takeshi
Sakamoto Shin'ichi
Sasayama Takao
Hitachi , Ltd.
Lall Parshotam S.
Wolfe W. R.
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