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AssigneeRobert Bosch GmbH
InventorsDirk SIELAND, Horst KLEINKNECHT, Sobin CHALAKKAL FRANCIS, Vignesh RAMANI
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The invention relates to a communication interface between a control unit and an electric load unit, particularly a load unit having a pump motor in a motor vehicle, wherein the control unit is designed as a transmitter and/or receiver, wherein the load unit is designed as a receiver and/or transmitter and wherein the communication between the transmitter and the receiver takes place via a signal line by means of a pulse-width-modulated signal. In this case, there is provision for the signal line to be connected to a constant current source and for the transmitter to be designed to modulate the flow of current through the signal line by means of pulse-width modulation. The invention further relates to a method for operating such a communication interface.
A communication interface between a control unit (10) and an electric load unit (60), wherein the control unit (10) is designed as a transmitter and/or receiver, wherein the load unit (60) is designed as a receiver and/or transmitter and wherein the communication between the transmitter and the receiver takes place via a signal line (33) using a pulse-width-modulated signal,
A method for operating a communication interface between a control unit (10) and an electric load unit (60), wherein the control unit (10) is designed as a transmitter and/or receiver, wherein the load unit (60) is designed as a receiver and/or transmitter and wherein the communication between the transmitter and the receiver takes place via a signal line (33) by a pulse-width-modulated signal, wherein the communication takes place via a pulse-width modulated current signal of a constant current source flowing through the signal line (33)
Dependencies are inferred from the claim text.