Internal-combustion engines – Charge forming device – Fuel injection system
Reexamination Certificate
2007-12-11
2007-12-11
Kwon, John T. (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel injection system
C123S480000
Reexamination Certificate
active
10587495
ABSTRACT:
A circuit configuration for generating a control signal for an engine control unit, designed to control at least one fuel injector of an internal combustion engine, enables an improved control signal course during the control of the injectors. The configuration includes: a counter device, to which a predefined clock signal can be supplied, for providing a time-dependent digital counter signal, based on the counting of the clock signal; a memory unit, in which the digital counter signal is entered, for storing a series of digital control signal values and for the successive issue of individual control signal values from the series of control signal values, in accordance with the counter signal; and a digital-to-analog converter for converting the issued digital control signal values into the analog control signal for the engine control unit.
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Greenberg Laurence A.
Kwon John T.
Locher Ralph E.
Siemens Aktiengesellschaft
Stemer Werner H.
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