Internal-combustion engines – Charge forming device – Fuel injection system
Reexamination Certificate
2007-01-30
2007-01-30
Gimie, Mahmoud (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel injection system
C361S187000
Reexamination Certificate
active
10916558
ABSTRACT:
A fuel injector control apparatus for a cylinder injection type engine includes driving circuits each shared by plural fuel injectors classified groupwise and having one ends connected in common to a potential source, switching means (13, 17, 19) connected to the potential source for turning on/off driving currents supplied to the injectors of a same group, a fuel quantity/injection timing arithmetic means (2) for determining a fuel supply quantity and a fuel injection timing on the basis of outputs from various sensors (1), driving circuits (10, 20) for firing the switching means in response to output of the fuel quantity/injection timing arithmetic means (2), and a ground fault identifying/discriminating means (2) for specifying a fault location upon occurrence of a ground fault. When the fault location is specified, fuel injection from other injector of the injector group to which the fault suffering injector belongs is stopped.
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Gimie Mahmoud
Mitsubishi Denki & Kabushiki Kaisha
Sughrue & Mion, PLLC
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