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Multi-voltage vehicle circuit of motor vehicle, operating method thereof, and mechanism implementing the method

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

Active Publication Date: 2014-10-15
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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  • Multi-voltage vehicle circuit of motor vehicle, operating method thereof, and mechanism implementing the method
  • Multi-voltage vehicle circuit of motor vehicle, operating method thereof, and mechanism implementing the method
  • Multi-voltage vehicle circuit of motor vehicle, operating method thereof, and mechanism implementing 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 multi-voltage vehicle circuit of a motor vehicle, an operating method thereof, and a mechanism implementing the method. The multi-voltage vehicle circuit has a first sub-circuit running at a first work voltage and a second sub-circuit running at a second work voltage, the first work voltage and the second voltage are same or different, selectable current is fed from the first sub-circuit to the second sub-circuit or from the second sub-circuit to the first sub-circuit, and at least one electricity load is coupled to the first sub-circuit and is decoupled from the first sub-circuit. The method includes special running modes, positive load jumping, caused by the conditions that negative load jumping is caused by coupling the at least one electricity load to the first sub-circuit, current is fed from the second sub-circuit to the first sub-circuit, the at least one electricity load is decoupled from the first sub-circuit, is correspondingly offset in the interval range of feed-in time by feeding the current from the first sub-circuit to the second sub-circuit.

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 Applications(China)
IPC IPC(8): B60R16/03H02J1/00H02J7/00
CPCY02T10/7066H02J7/14H02M1/00B60L2240/526B60L2240/527Y02T10/7005B60L3/0046B60R16/03B60L2240/547F02N11/0862Y02T10/7225B60L11/18B60L11/1868B60L2210/14B60L2210/12B60K6/485H02J1/08B60L2240/529B60L2240/549Y02T10/7233H02J2001/008B60L58/10B60L58/20F02N11/0866F02N2011/0888H02J1/082H02J2310/48Y02T10/70Y02T10/72
Inventor M.埃申哈根
Owner ROBERT BOSCH GMBH
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