Method for operating dual-accumulator vehicular circuit

A technology of dual accumulators and accumulators, applied in circuit devices, battery circuit devices, circuits or fluid pipelines, etc., can solve problems such as troublesome costs
CN103010041AActive Publication Date: 2013-04-03ROBERT BOSCH GMBH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ROBERT BOSCH GMBH
Publication Date
2013-04-03

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Abstract

The present invention relates to a method for operating a dual-accumulator vehicular circuit (10). The dual-accumulator vehicular circuit (10) is provided with two sub-circuits (11,12) which are connected through a DC transformer (13) and a power generator (14), wherein a first sub-circuit (11) in the two sub-circuits (11,12) comprises a first accumulator (15) and furthermore a second sub-circuit (12) in the two sub-circuits (11,12) comprises the following components: a second accumulator (17), a starter motor (16) which is used for starting an internal combustion engine of the vehicle, and at least one load (18). In the time interval when the power generator (14) does not operate and / or before starting the internal combustion engine of the vehicle, the voltage of the second sub-circuit (12) is at least temporarily enhanced to a starting voltage (U3) higher than the Nernst voltage (U2) of the second accumulator (17) through enhancing the output voltage of the DC transformer (13).
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Description

technical field

[0001] The invention relates to a method for operating a dual-energy storage vehicle circuit of a motor vehicle having two partial circuits connected via a DC transformer, and to a corresponding computing unit. Background technique

[0002] Motor vehicles with stop-start automatics are known in principle. In conventional systems, as in other motor vehicles, an electrical store is also provided here, which is connected to the motor vehicle's known type of generator ("vehicle generator") and starter motor (“starter”) and electrical loads. The electrical energy store is, for example, a lead-acid battery, which is also referred to as a “vehicle battery” within the scope of this application.

[0003] During the starting process of the internal combustion engine, the motor vehicle battery is charged so strongly by the starter that the vehicle electrical system is disturbed. This results in functional limitations for voltage-sensitive loads such as radios or info...

Claims

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