Internal-combustion engines – Engine speed regulator – Responsive to deceleration mode
Patent
1983-06-08
1985-07-09
Dolinar, Andrew M.
Internal-combustion engines
Engine speed regulator
Responsive to deceleration mode
123493, F02D 500
Patent
active
045275211
ABSTRACT:
A method for controlling the quantity of fuel being supplied to an internal combustion engine having a power transmission means for transmitting engine torque to vehicle wheels. The fuel quantity is controlled to a required value after termination of a fuel cut operation which is effected at deceleration of the engine, by increasing a quantity of fuel set at least as a function of intake pipe pressure by an increment which is set in synchronism with generation of pulses of a predetermined control signal. The increase of the fuel quantity is effected for a period of time after a transition of the operative state of the engine from the fuel cut operation to a normal operation wherein fuel supply is effected has been detected and before a predetermined number of pulses of the above control signal generated are generated, so long as the power transmission means remains in a disengaged state. Preferably, the above increase of the fuel quantity is effected only when the engine speed is lower than predetermined rpm. Further, the increase of the fuel quantity is prohibited while the power transmission means remains in an engaged state. Instead, while the power transmission means is in an engaged state, the fuel quantity is determined as a function of a value of intake pipe pressure which is set by subtracting a value dependent upon the engine speed from a detected value of intake pipe absolute pressure, until all the engine cylinders are supplied with fuel after the transition to the normal operation of the engine has been detected.
REFERENCES:
patent: 4242991 (1981-01-01), Scherenberg et al.
patent: 4305365 (1981-12-01), Iizuka et al.
patent: 4387681 (1983-06-01), Ikeura et al.
patent: 4414941 (1983-11-01), Nakanishi
Hasegawa Shumpei
Kishi Noriyuki
Dolinar Andrew M.
Honda Giken Kogyo Kabushiki Kaisha
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