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Motor vehicle multi-voltage vehicle circuit, its operation method and mechanism for realizing the method

A multi-voltage, motor vehicle technology, applied in the direction of motor starting for engines, machines/engines, battery circuit devices, etc., can solve problems such as vehicle failure

Active Publication Date: 2018-11-13
ROBERT BOSCH GMBH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vehicle fails

Method used

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  • Motor vehicle multi-voltage vehicle circuit, its operation method and mechanism for realizing the method
  • Motor vehicle multi-voltage vehicle circuit, its operation method and mechanism for realizing the method
  • Motor vehicle multi-voltage vehicle circuit, its operation method and mechanism for realizing the method

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Embodiment Construction

[0033] In the figures, elements corresponding to each other are identified with the same reference numerals and will not be explained repeatedly.

[0034] figure 1 A dual-voltage vehicle circuit not according to the invention is shown in the form of a schematic wiring diagram. The dual-voltage automotive circuits are denoted by 110 in their entirety.

[0035] The dual-voltage automotive circuit 110 has a first sub-circuit 10 and a second sub-circuit 20 . The first subcircuit 10 is here designed, for example, for operation with 48V as operating voltage. The second subcircuit 20 is designed here, for example, for operation with 12V as operating voltage. The first subcircuit 10 is thus a so-called high-voltage subcircuit, while the second subcircuit 20 is a so-called low-voltage subcircuit.

[0036] An electric machine 11 with a converter 12 is arranged in the first partial circuit 10 . The electric machine 11 can be operated at least as a generator and can feed current into...

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Abstract

The invention relates to a motor vehicle multi-voltage vehicle circuit, its operation method and the mechanism for realizing the method. For the method, the multivoltage vehicle circuit has a first subcircuit operable with a first operating voltage and a second subcircuit operable with a second operating voltage, the first and second operating voltages being the same or different, Optional current can be fed from the first sub-circuit into the second sub-circuit or can be fed from the second sub-circuit into the first sub-circuit, and at least one electrical load can be coupled to the first sub-circuit and can be fed from the first sub-circuit Sub-circuit decoupling. The method includes a special operating mode in which a negative load jump caused by coupling at least one electrical load to the first sub-circuit is caused by feeding current from the second sub-circuit into the first sub-circuit and through at least one electrical load. The positive load jump caused by the decoupling of the load from the first subcircuit is correspondingly counteracted within the feeding time interval by feeding current from the first subcircuit into the second subcircuit.

Description

technical field [0001] The invention relates to a method for operating a multi-voltage vehicle circuit for a motor vehicle, which has a first partial circuit which can be operated with a first operating voltage and which can be operated with a second operating voltage and the invention relates to a corresponding multi-voltage vehicular circuit and a mechanism for implementing said method. Background technique [0002] So-called multi-voltage vehicle circuits for motor vehicles are known in principle. If loads with different power requirements are present in the relevant motor vehicle, a multi-voltage vehicle circuit is used, for example. In the context of this application, a multi-voltage vehicle circuit has what are referred to as sub-circuits, which are set up for operation at the same or different voltage levels, referred to here as “operating voltages”. In particular, multi-voltage vehicle circuits can be configured as dual-voltage vehicle circuits, for which the opera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R16/03H02J1/00H02J7/00
CPCB60L3/0046B60L2210/12B60L2210/14B60L2240/526B60L2240/527B60L2240/529B60L2240/547B60L2240/549B60L58/10B60L58/20F02N11/0862F02N11/0866F02N2011/0888H02J1/082H02J2310/48Y02T10/70Y02T10/72B60R16/03H02J1/08
Inventor M.埃申哈根
Owner ROBERT BOSCH GMBH
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