Tilt-sensor
AssigneeTemic Telefunken microelectronic GmbH
InventorJoachim Walter
Life of this patent
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Abstract
A tilt-sensor for detection of a tilt angle is proposed, in particular for use as a roll-over sensor in a car for activation of an occupant protection device, comprising a massive body and an associated receptacle and having the following features: the receptacle is V-shaped in form, an inflection arm is disposed at each inner side of each of the two legs of the V-shaped receptacle, the massive body is configured in such a fashion that it seats, flush with the surface, on the inflection arms at the inner side of the V-shaped receptacle, and extension measurement elements are provided for the production of a tilt-angle dependent measuring signal to measure the deformation caused by the massive body during a rotation or deflection of the tilt-sensor through the tilt angle.
Claims9
Tilt-sensor for detection of a tilt angle and adapted for use as a roll-over sensor in a car to activate an occupant protection device, the tilt-sensor comprising:
- V-shaped receptacle means having a first leg with a first inner side and a second leg with a second inner side, said first leg having a first inflection arm disposed at said first inner side, said inflection arm having a first surface and said second leg having a second inflection arm disposed at said second inner side said second inflection arm having a second surface;
- a massive body having a first area and a second area, said first area seating flush with said first surface and said second area seating flush with said second surface;
- first extension measurement means for measuring distortions of said first inflection arm caused by said massive body during displacement of the tilt-sensor and for issuing a signal in dependence on the tilt angle;
- and
- second extension measurement means for measuring distortions of said second inflection arm caused by said massive body during displacement of the tilt-sensor and for issuing a signal in dependence on the tilt angle.
Dependencies are inferred from the claim text.