Electronic control unit for a motor vehicle
AssigneeSiemens Aktiengesellschaft
InventorHelmut Gander
Life of this patent
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Abstract
A control unit has a circuit support, on which electrical and/or electronic components of an electronic circuit of the control unit are disposed. The circuit support is composed of a temperature-resistant ceramic material, and on it there is applied at least one resistive track made of a material whose electrical resistance is temperature-dependent. The resistive track is connected to an evaluation circuit that determines the temperature using resistance values measured on the resistive track. The circuit support is in thermally conductive contact with the environment that is to be taken into consideration.
Claims5
An electronic control unit for a motor vehicle, comprising:
- a circuit support made of a temperature-resistant ceramic material, said circuit support to be thermally conductively connected to a surrounding medium;
- electrical/electronic control components including an evaluation circuit, said control components disposed on said circuit support;
- at least one resistive track made of a material having a temperature-dependent electrical resistance applied onto said circuit support and connected to said evaluation circuit;
- and
- said evaluation circuit determining a temperature of the surrounding medium using resistance values measured on said at least one resistive track and being programmed to provide temperature-related information to said control components dependent upon said resistance values measured on said at least one resistive track.
Dependencies are inferred from the claim text.