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Drive system for a battery-operated vehicle with a permanent magnet excited synchronous motor powered by an inverter

A drive system and synchronous motor technology, applied in electric brake systems, vehicle components, electric vehicles, etc., can solve the problems of large installation space and implementation forms that cannot be applied to drive systems, and achieve high performance effects

Active Publication Date: 2016-03-30
VALEO EAUTOMOTIVE GERMANY GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Owing to the limited number of permissible switching gaps under load, the embodiment of device 26 cannot be used in a drive system 2 of a battery-operated vehicle.
In addition, electromechanical devices require a larger installation space than electronic devices, and moreover, electromechanical devices in battery-operated vehicles are no longer trendy

Method used

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  • Drive system for a battery-operated vehicle with a permanent magnet excited synchronous motor powered by an inverter
  • Drive system for a battery-operated vehicle with a permanent magnet excited synchronous motor powered by an inverter
  • Drive system for a battery-operated vehicle with a permanent magnet excited synchronous motor powered by an inverter

Examples

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Embodiment Construction

[0026] due to figure 1 The reason for the overview statement on the drive system 2 is in Figure 7 Only the snubber capacitor 18 , the self-commutated converter 8 and the permanently excited synchronous machine 10 are shown. Furthermore, the block diagram shows an embodiment according to the invention of a device 26 by means of which the stator-side terminals U, V and W of a permanently excited synchronous machine 10 can be short-circuited for a predetermined period of time. For this purpose, the device has three thyristors 44 which are electrically connected in a delta. One connection point 38 , 40 and 42 of the two thyristors 44 is electrically conductively connected to the stator-side terminal U or V or W of the permanently excited synchronous machine 10 . If the IGBT pulse converter 8 or its control and regulation device 24 is interrupted due to a fault, especially in field weakening operation of a permanently excited synchronous machine 10, the three thyristors 44 are t...

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PUM

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Abstract

The drive system has a permanent magnet synchronous machine (10) whose the stator-side ports (U,V,W) are electrically connected with alternating current (AC)-side terminals (R,S,T) of a self-commutated converter (8) respectively. Three thyristors (44) of a short circuit controlling device (26) are electrically connected in delta connection and are electrically connected with the stator-side port of the permanent magnet synchronous machine.

Description

technical field [0001] The invention relates to a drive system for a battery-operated vehicle. Background technique [0002] A drive system for a battery-operated vehicle is known from DE 10 2009 044 281 A1 and in figure 1 shown in detail. In said block diagram of the known drive system denoted by 2, the energy store is denoted by 4, the bidirectional direct current converter is denoted by 6, the self-commutated converter is denoted by 8, the self-commutated converter A drive motor, in particular a permanently excited synchronous machine, is denoted by 10, also known as a pulse converter, and a drive shaft or drive wheels of a battery-operated vehicle are denoted by 12. For this purpose, the bidirectional DC voltage converter 6 , which converts the voltage of an energy store 4 , for example a battery, into a DC voltage of a pulse converter 8 , has two switchable semiconductors T8 and T10 electrically connected in series, in particular insulated A gate bipolar transistor (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L7/02B60L7/00
CPCB60L7/003B60L3/003B60L3/0076
Inventor 京特·施韦西希胡贝特·席尔林汉诺·瓦尔德斯
Owner VALEO EAUTOMOTIVE GERMANY GMBH
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