Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1990-01-23
1991-01-29
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Fuel injection system
F02M 5100
Patent
active
049878891
ABSTRACT:
In a fuel supply control method including determining a cylinder at a suction stroke in a multiple cylinder internal combustion engine at each generation of a first predetermined crank angle position signal and injecting/supplying into a cylinder at a suction stroke a first amount at fuel which is computed by a first technique based on a sucked amount of air, A, and number of engine rotations, N, representing an engine load, a method comprises determining a cylinder at a suction stroke for asynchronous injection at each generation of a second crank angle position signal which is nearer to a top dead center of each cylinder than the first predetermined crank angle position signal; detecting a throttle valve opening for each predetermined time Ts and computing a throttle value opening variation .DELTA. .circleincircle.H ; and injecting/supplying, upon determining the variation .DELTA. .circleincircle.H as being greater than a predetermined value, a second amount of fuel corresponding to the variation .DELTA. .circleincircle.H into the cylinder which has been determined by the second crank angle position signal as being at the suction stroke and into a cylinder at a corresponding exhaust stroke. By so doing, there is an increased chance of being able to correct an incremental fuel which is asynchronously injected into a cylinder at the suction stroke and cylinder at the exhaust stroke, thus ensuring an enhanced response of the vehicle to an engine output at a time of acceleration.
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patent: 4889100 (1989-12-01), Nakaniwa et al.
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Fujita Hirokatsu
Kanno Yoshiaki
Kashiwabara Kimito
Argenbright Tony M.
Mates Robert E.
Mitsubishi Denki & Kabushiki Kaisha
Mitsubishi Jidosha Kogyo Kabushiki
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