Method for a deterministic selection of a sensor from a plurality of sensors

摘要

Method for a deterministic selection of a sensor from a plurality of sensors, having a control unit and multiple sensors connected to the control unit by means of a three-wire bus, wherein the sensors are connected parallel to one another at a three-wire bus by at least two lines and a protocol frame according to SENT specification is used between the control unit and the sensors for a data exchange, and within the protocol frame a specified sensor is selected from a plurality of sensors by means of a selection signal sent by the control unit, wherein each sensor is associated with an unambiguous number of pulses for the selection of the sensor, and the selection of the sensor is performed by means of the selection signal having a predetermined number of pulses occurring immediately in succession.

主权项

1. A method for a deterministic selection of a sensor from a plurality of sensors, the method comprising:
connecting a control unit and at least two sensors to the control unit via a three-wire bus, the sensors being connected parallel to one another by at least two lines of the three-wire bus; using, between the control unit and the at least two sensors, a protocol frame according to SENT specifications for a data exchange; selecting, within the protocol frame, a specific sensor from the at least sensors via a selection signal sent by the control unit; and associating, for the selection of the sensor, the at least two sensors are associated with an unambiguous number of pulses and the selection of a sensor is performed via the selection signal having a predetermined number of pulses occurring immediately in succession.