Control device in a motor vehicle and a method of attaching a pressure sensor used by the control device
AssigneeSiemens Aktiengesellschaft
InventorsRoland Albert, Christian Fritzsche
Life of this patent
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AssigneeSiemens Aktiengesellschaft
InventorsRoland Albert, Christian Fritzsche
Estimating the term…
The control device has a control circuit and a pressure sensor for measuring the hydraulic pressure in the gearbox. The control circuit and the pressure sensor are accommodated in a common housing. The housing has a metallic baseplate which is connected in a pressure tight fashion to a hydraulic unit of the gearbox and is provided with a bore hole through which pressure is applied to the pressure sensor. A carrier for the pressure sensor has a cylinder-like projection which is pressed into the bore hole in such a way that a pressure tight and frictionally locking connection is produced between the carrier and the baseplate as a result of the displacement of material. The pressure sensor can also be used to measure the intake vacuum of an engine.
A control device in a motor vehicle, comprising:
A control device in a motor vehicle, comprising:
A method of attaching a pressure sensor for measuring a pressure in a fluid or gaseous medium in a motor vehicle to a baseplate, which comprises mounting a pressure sensor on a metallic carrier formed with a cylinder-like projection and pressing the cylinder-like projection into a bore hole in the baseplate to thereby produce a pressure-tight and frictionally locking connection between the carrier and the baseplate as a result of a displacement of materials with different degrees of hardness.
Dependencies are inferred from the claim text.