Method for determining the position of a mobile identification emitter of a wireless closing/starting releasing system of a vehicle comprises using low frequency emitting antennae controlled by an emitter unit

摘要

Method for determining the position of a mobile identification emitter of a wireless closing/starting releasing system of a vehicle comprises using low frequency emitting antennae controlled by an emitter unit, transmitting data representing the emitting signal to the site of the identification emitter to a control unit of the system, comparing data transmitted by the identification emitter with data in a storage unit which represents field strength values and positions based on a reference point in the vehicle and determining the position of the identification emitter by the control unit based on the field strength data and the ratio of the measured current value and supply voltage. Preferred Features: The field strength of the emitter signal in the identification emitter is set in at least one of the low frequency emitting antennae in relation to the determined current.