NETWORK AND METHOD FOR OPERATING A NETWORK
First Claim
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1. A network in a motor vehicle, the network comprising:
- a central subscriber and at least one first subscriber,wherein the central subscriber and the at least one first subscriber are connected by at least one first cable,wherein the central subscriber comprises at least one signal coupling unit and at least one energy coupling unit,wherein the signal coupling unit impresses or taps off an AC voltage onto or from at least one first line of the first cable,wherein the energy coupling unit impresses a DC voltage at a predetermined voltage level onto the first line of the first cable,wherein the at least one first subscriber comprises at least one signal coupling unit and at least one energy coupling unit,wherein the signal coupling unit taps off or impresses an AC voltage from or onto the at least one first line of the first cable,wherein the energy coupling unit taps off the DC voltage from the at least one first line of the first cable,wherein the first DC voltage is a first operating voltage for the first subscriber or is transformed into the first operating voltage for the first subscriber,wherein the first operating voltage is applied to at least one first input of the first subscriber,wherein the first subscriber comprises a signaling unit or the first subscriber has an associated signaling unit,wherein the signaling unit can be used to produce a requirement signal in a disconnected or sleeping state of the first subscriber, wherein the requirement signal can be transmitted from the signaling unit to the central subscriber via at least one line connecting the first and central subscribers.
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Abstract
A network, in particular in a motor vehicle, wherein the network includes a central subscriber and at least one first subscriber, wherein the central subscriber and the at least one first subscriber are interconnected by way of at least one first cable. The central subscriber has at least one signal coupling unit and at least one energy coupling unit, wherein by way of the signal coupling unit an AC voltage can be impressed on at least one first line of the first cable, or can be tapped from the signal coupling unit. Also disclosed is a method for operating a network.
15 Citations
10 Claims
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1. A network in a motor vehicle, the network comprising:
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a central subscriber and at least one first subscriber, wherein the central subscriber and the at least one first subscriber are connected by at least one first cable, wherein the central subscriber comprises at least one signal coupling unit and at least one energy coupling unit, wherein the signal coupling unit impresses or taps off an AC voltage onto or from at least one first line of the first cable, wherein the energy coupling unit impresses a DC voltage at a predetermined voltage level onto the first line of the first cable, wherein the at least one first subscriber comprises at least one signal coupling unit and at least one energy coupling unit, wherein the signal coupling unit taps off or impresses an AC voltage from or onto the at least one first line of the first cable, wherein the energy coupling unit taps off the DC voltage from the at least one first line of the first cable, wherein the first DC voltage is a first operating voltage for the first subscriber or is transformed into the first operating voltage for the first subscriber, wherein the first operating voltage is applied to at least one first input of the first subscriber, wherein the first subscriber comprises a signaling unit or the first subscriber has an associated signaling unit, wherein the signaling unit can be used to produce a requirement signal in a disconnected or sleeping state of the first subscriber, wherein the requirement signal can be transmitted from the signaling unit to the central subscriber via at least one line connecting the first and central subscribers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for operating a network in a motor vehicle wherein the network comprises a central subscriber and at least one first subscriber, the method comprising:
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wherein connecting the central subscriber and the at least one first subscriber by at least one first cable, wherein the central subscriber comprises at least one signal coupling unit and at least one energy coupling unit; using, in a communication state of the first subscriber, the signal coupling unit to impress or tap off an AC voltage onto or from at least one first line of the first cable; using the energy coupling unit to impress a DC voltage at a predetermined voltage level onto the first line of the first cable, wherein the at least one first subscriber comprises at least one signal coupling unit and at least one energy coupling unit; using the signal coupling unit to tap off or impress an AC voltage from or onto the at least one first line of the first cable; using the energy coupling unit to tap off the DC voltage from the at least one first line of the first cable and to apply the DC voltage from the at least one first line of the first cable to at least one first input of the first subscriber, wherein the DC voltage is a first operating voltage for the first subscriber, wherein the first subscriber comprises a signaling unit or the first subscriber has an associated signaling unit, and the method further comprises using the signaling unit to produce a requirement signal in a disconnected or sleeping state of the first subscriber and transmitting the requirement signal from the signaling unit to the central subscriber via at least one line connecting the first and central subscribers.
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Specification