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Device and method for adapting a direct current intermediate circuit by varying the voltage and adapting the phase number of a dc/dc converter

A DC intermediate circuit and intermediate circuit technology, applied in the direction of converter type, DC power input conversion to DC power output, irreversible DC power input conversion to AC power output, etc., can solve the problem of limited stroke length, long charging process, etc. problems, to achieve the effect of reducing the number of changes

Pending Publication Date: 2021-02-26
VTESCO TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these electric vehicles have limited travel length and long charging process
In addition, components such as the battery pack and the engine must be cooled in order to dissipate lost power, however this requires additional electrical energy

Method used

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  • Device and method for adapting a direct current intermediate circuit by varying the voltage and adapting the phase number of a dc/dc converter
  • Device and method for adapting a direct current intermediate circuit by varying the voltage and adapting the phase number of a dc/dc converter
  • Device and method for adapting a direct current intermediate circuit by varying the voltage and adapting the phase number of a dc/dc converter

Examples

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Embodiment Construction

[0044] figure 1 An intermediate circuit 10 is shown. The intermediate circuit 10 is a DC intermediate circuit with at least two parallel phases. also, figure 1An inverter connected to an intermediate circuit 10 is shown. A load 3 provided to drive a vehicle, such as a motor, is connected to the inverter. In this case, the voltage of the intermediate circuit 10 , ie the number of branches to which the current is transmitted, can be varied. Furthermore, the number of phases can be changed. Both changes can be made according to the current operating point such as required power, minimum voltage and dynamics. Thus, sufficient power can always be supplied to the load 3 connected to the intermediate circuit 10 without the losses becoming unnecessarily high. In WLTP (Worldwide harmonized Light vehicles Test Procedure, a globally harmonized light vehicle test procedure), the efficiency improvement of matching equipment through the intermediate circuit can be as high as 5%. The ...

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PUM

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Abstract

The invention relates to an intermediate circuit adaptation device (1) for a vehicle (2). The intermediate circuit adaptation device (1) comprises a direct current intermediate circuit (10) having atleast two phases (15) and a control unit (20). The control unit (20) is designed to change the intermediate circuit voltage and / or the phase number of the intermediate circuit (10) on the basis of thecurrent operating point.

Description

technical field [0001] The invention relates to an intermediate circuit matching device for a vehicle, a vehicle with an intermediate circuit matching device and a method for changing the intermediate circuit voltage and / or the number of phases. Background technique [0002] In recent years, increased environmental awareness and awareness of consumption, CO 2 Higher emissions and other emissions are leading to new driver assistance systems and numerous new driving functions. Furthermore, in order to further reduce CO 2 emissions, and the increasing development and sale of electric vehicles. However, these electric vehicles have limited travel lengths and long charging procedures. In addition, components such as the battery pack and the engine must be cooled in order to dissipate lost power, which however requires additional electrical energy. By reducing losses in the electrical system, the stroke length can be increased and at the same time the cooling requirement can b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/00H02M3/142H02M3/156H02M7/49
CPCB60L15/007B60L2210/10B60L2240/527H02M3/1584H02M7/48Y02T10/64Y02T10/72Y02T10/70H02M1/0048H02M1/327H02M1/007B60Y2200/91B60L2210/14B60L2210/40
Inventor F·乌里希M·布吕尔
Owner VTESCO TECH GMBH
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