Abstract: The invention relates to a device for detecting the position of a vehicle wheel (2), which is intended, in particular, for a vehicle equipped with a tyre pressure monitoring system. The inventive device consists of first and second means of measuring acceleration in a direction (D1, D2) comprising a component in a vertical plane. The vertical plane components of the measuring directions of the first and second measuring means present an angular offset (?) other than 0° or 180°.

Abstract: The present invention relates to an infrared sensor (20) of the type comprising a support plate (22) provided with a printed circuit carrying a plurality of elements (23) sensitive to infrared waves and a dome (21) designed to cover said sensitive elements. This sensor is characterized in that: cutouts (27) are made in the support plate (22) around each sensitive element, each of these cutouts delimiting a tongue (28). These tongues are designed to be deployed outside the plane (P) of the support plate and to interact with the dome (21) in such a way that they adopt a defined position with respect to one another. The sensor according to the present invention is more particularly intended to equip automobile courtesy lights and to form part of an antitheft and/or centralized door-locking device.