An ID transmitter for a wireless vehicle locking system, having a battery (1), a microcontroller (2) coupled to the battery (1) and an ultra-wideband (UWB) transceiver (5) coupled to the microcontroller for actuation by the microcontroller (2). The ultra-wideband transceiver (5) is coupled to the battery in parallel with the microcontroller via a UWB coupling link (4), an actuatable switching means (3) being introduced into the UWB coupling link (4) and the microcontroller actuating the switching means to set up and remove a DC coupling between the ultra-wideband transceiver (5) and the battery (1). An energy management circuit (6) is coupled to the UWB coupling link (4) and limits the current carried by the UWB coupling link. A buffer capacitance (B1) is coupled to the UWB coupling link and the battery and supplies to the ultra-wideband transceiver (5). The energy management circuit (6) detects a first buffer voltage of the first buffer capacitance and transmits status information regarding the first buffer voltage to the microcontroller.
MOBILE FUNKEINHEIT FÜR EIN FAHRZEUGSCHLIESSSYSTEM
MOBILE RADIO UNIT FOR A VEHICLE LOCKING SYSTEM
UNITÉ RADIOÉLECTRIQUE MOBILE POUR SYSTÈME DE FERMETURE DE VÉHICULE
2022-02-16
Patent
Electronic Resource
German