Device for the voltage supply in a motor vehicle
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Accused Products
Abstract
A device for the voltage supply for a heavy power consumer, e.g., an electric auxiliary compressor in a motor vehicle, in which the electric auxiliary compressor is supplied with voltage with the aid of two ultracaps and one high current diode. The voltage supply via the high current diode takes place starting from the battery of the vehicle electrical system, while the ultracaps provide high electric power for a short time during the starting phase of the electric auxiliary compressor at a voltage level which is doubled vis-a-vis the voltage level of the vehicle electrical system.
24 Citations
20 Claims
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1-10. -10. (canceled)
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11. A device for supplying voltage to a heavy power consumer in a motor vehicle, comprising:
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a generator that provides a controlled DC voltage for charging a battery and for supplying at least one consumer;
a circuit arrangement for connecting the heavy power consumer to one of the battery and the generator, wherein the circuit arrangement includes a first electronic component that is situated between the positive pole of the battery and the heavy power consumer, and at least two charge storage devices that are selectively connected to one another by a switching arrangement, and wherein the at least two charge storage devices are selectively connected to the heavy power consumer and the electronic component; and
a control device for controlling the operation of the switching arrangement. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for supplying voltage to a heavy power consumer in a motor vehicle, comprising:
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providing, using a generator, a controlled DC voltage for charging a battery and for supplying at least one consumer;
selectively connecting, by a circuit arrangement, the heavy power consumer to one of the battery and the generator, wherein the circuit arrangement includes a first electronic component that is situated between the positive pole of the battery and the heavy power consumer, and at least two charge storage devices that are selectively connected to one another by a switching arrangement, and wherein the at least two charge storage devices are selectively connected to the heavy power consumer and the electronic component; and
controlling, using a control device, the operation of the switching arrangement, wherein the control device detects when the heavy power consumer is to be connected, and wherein the control device subsequently outputs appropriate triggering signals to the switching arrangement to ensure a required voltage supply for the heavy power consumer.
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Specification