Electric heating – Heating devices – Resistive element: igniter type
Reexamination Certificate
2005-06-14
2005-06-14
Jeffery, John A. (Department: 3742)
Electric heating
Heating devices
Resistive element: igniter type
C123S14500A
Reexamination Certificate
active
06906288
ABSTRACT:
A process and device for controlling the heating of the glow plugs of a diesel engine. To be able to take into consideration the thermal behavior of the glow plugs while controlling the current supply of the glow plugs (3) of a diesel engine, the thermal behavior of the glow plugs (3) is emulated via a physical model. Formed on the corresponding output signal of the model (4), which is proportional to the glow plug temperature, is a reference signal, which as a control value, lies on the electronic control (12) controlling the heating flow of the glow plugs (3), which accordingly controls the heating of the glow plugs (3) using the actual glow plug temperature determined from emulation.
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patent: 4726333 (1988-02-01), Verheyen
patent: 4858576 (1989-08-01), Jeffries et al.
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patent: 5724932 (1998-03-01), Antone
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patent: 2002-39043 (2002-02-01), None
Schmitz Heinz-Georg
Toedter Olaf
Beru AG
Jeffery John A.
Nixon & Peabody LLP
Safran David S.
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