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US 8,912,470 B2Granted
Method and device for controlling a glow plug
AssigneeRobert Bosch GmbH
InventorsHans-Peter Bauer, Rainer Moritz, Wolfgang Dressler
Life of this patent
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Abstract
A method and a device for controlling a glow plug in a combustion engine, where a state of aging A of the glow plug is ascertained, and the control of the glow plug is influenced as a function of the state of aging A of the plug.
Claims23
A method for controlling a glow plug in a combustion engine, the method comprising:
- ascertaining, using a controller, a state of aging A of the glow plug;
- and
- changing, using the controller, an operational control of the glow plug as a function of the state of aging A of the glow plug, wherein the change in the operational control as a function of the state of aging A of the glow plug is greater at a low ambient temperature than at a high ambient temperature, and wherein the state of aging A of the glow plug is recognized and compensated for by the change in the operational control of the glow plug, so that the glow plug may be operated without adversely affecting a starting of the combustion engine.
A device for controlling a glow plug in a combustion engine, comprising:
- a processor arrangement to ascertain a state of aging A of the glow plug to change an operational control of the glow plug as a function of the state of aging of the glow plug, wherein a greater change is selected in the control as a function of the state of aging A of the glow plug at a low ambient temperature than at a high ambient temperature, and wherein the state of aging A of the glow plug is recognized and compensated for by the change in the operational control of the glow plug, so that the glow plug may be operated without adversely affecting a starting of the combustion engine.
Dependencies are inferred from the claim text.