Secondary accumulator charging/discharging for a motor vehicle using a controllable resistor
First Claim
1. Electrical circuit for a motor vehicle, comprising:
- a primary system including a voltage-controlled generator, a primary energy accumulator coupled to said voltage-controlled generator, and at least one primary energy consuming device coupled to said voltage-controlled generator;
a secondary system coupled with said primary system, said secondary system including a secondary energy accumulator and at least one secondary energy consuming device;
wherein said secondary system further comprises a single control unit having a controllable resistor connected to said voltage-controlled generator, said control unit monitoring a charge condition of said secondary energy accumulator and, as a function of an actual charge condition of said secondary energy accumulator, controlling said controllable resistor and connecting and disconnecting said at least one secondary energy consuming device such that said primary system is not overloaded during a charging of said secondary energy accumulator and, during a discharging of said secondary energy accumulator, said secondary energy accumulator does not fall below a predetermined residual charge value.
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Accused Products
Abstract
In the case of an electrical wiring for a motor vehicle having a primary system which includes a voltage-controlled generator, a primary energy accumulator as well as at least one primary energy consuming device, and having a paralleled secondary system which includes a secondary energy accumulator as well as at least one secondary energy consuming device, the secondary system includes a control unit with a controllable resistor connected to the generator. The control unit monitors the charge condition of the secondary energy accumulator. As a function of the currently determined charge condition of the secondary energy accumulator, the control unit, on the one hand, controls the controllable resistor in such a manner that, during the charging of the secondary energy accumulator, the primary system is not overloaded. Furthermore, the control unit connects and disconnects the secondary energy consuming device or devices in such a manner that, during the discharging of the secondary energy accumulator, there is no falling below a predetermined residual charge value.
24 Citations
15 Claims
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1. Electrical circuit for a motor vehicle, comprising:
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a primary system including a voltage-controlled generator, a primary energy accumulator coupled to said voltage-controlled generator, and at least one primary energy consuming device coupled to said voltage-controlled generator; a secondary system coupled with said primary system, said secondary system including a secondary energy accumulator and at least one secondary energy consuming device; wherein said secondary system further comprises a single control unit having a controllable resistor connected to said voltage-controlled generator, said control unit monitoring a charge condition of said secondary energy accumulator and, as a function of an actual charge condition of said secondary energy accumulator, controlling said controllable resistor and connecting and disconnecting said at least one secondary energy consuming device such that said primary system is not overloaded during a charging of said secondary energy accumulator and, during a discharging of said secondary energy accumulator, said secondary energy accumulator does not fall below a predetermined residual charge value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for controlling the charging and discharging of an accumulator in a motor vehicle having a primary system including a voltage-controlled generator, a primary energy accumulator, and at least one primary energy consuming device, and having a secondary system coupled in parallel with said primary system which has a secondary energy accumulator as well as at least one secondary consuming device, the method comprising the steps of:
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monitoring a charge condition of the secondary energy accumulator with a single control unit having a controllable resistor connected to the voltage-controlled generator; controlling as a function of an actual charge condition of the secondary energy accumulator, the controllable resistor and a connecting and disconnecting of the at least one secondary energy consuming device such that during a charging of the secondary energy accumulator, the primary system is not overloaded and, during a discharging of the secondary energy accumulator, the secondary energy accumulator does not fall below a predetermined residual charge value. - View Dependent Claims (14, 15)
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Specification