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Device and method for operating a motor vehicle, and motor vehicle

A technology for motor vehicles and equipment, which is applied to equipment and equipment for running motor vehicles, can solve problems such as cost control and adjustment, and achieve the effect of ensuring safe operation and improving operation safety.

Active Publication Date: 2019-10-11
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This requires costly control and regulation

Method used

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  • Device and method for operating a motor vehicle, and motor vehicle
  • Device and method for operating a motor vehicle, and motor vehicle
  • Device and method for operating a motor vehicle, and motor vehicle

Examples

Experimental program
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Embodiment Construction

[0024] figure 1 An advantageous device 1 for operating a motor vehicle (not shown here in greater detail) with an electric drive system is shown in a simplified circuit diagram. The drive system has a high-voltage traction network 2 , which in particular has a drive motor and a high-voltage energy store. The drive system also has an operating system 3 , which is similar to the usual on-board system of a motor vehicle and has control electronics 4 and power electronics 5 . In this case, the control electronics 4 are arranged in the low-voltage part 6 of the service network 3 and the power electronics 5 are arranged in the high-voltage part 7 of the service network 3 , wherein the low-voltage part 6 and the high-voltage part 7 are connected to one another via a converter or transformer 8 and Otherwise they are electrically separated from each other. Service network 3 also has an electrical store 9 which is arranged in low-voltage part 6 and supplies service network 3 with an o...

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PUM

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Abstract

The invention relates to a device (1) for operating a motor vehicle, comprising an electrical drive system with an electrical high-voltage traction network (2) and an operating network (3) that has ahigh-voltage unit (7) comprising a power electronics system (5), and a low-voltage unit (6) comprising a control electronics system (4), and a first transformer (8) designed to convert an input voltage (U1) from the low-voltage unit (6) into a first, particularly higher output voltage (U2) for the power electronics system (5). According to the invention, the device comprises at least one second transformer (11) designed to convert the first output voltage (U2) of the first transformer (8) into a second output voltage (U3) for the control electronics system (4), the second output voltage (U3) being higher than the input voltage (U1).

Description

technical field [0001] The invention relates to a device for operating a motor vehicle having an electric drive system with an electric high-voltage traction system as well as an operating system with a power electronics system and at least one first transformer. The high-voltage part and the low-voltage part with the control electronics, the transformer is designed to convert the input voltage in the operating system into a first, in particular higher, output voltage for the power electronics. [0002] The invention also relates to a motor vehicle having such a device and a method for operating such a motor vehicle, wherein the input voltage in the low-voltage part is converted by means of a transformer into a first, in particular higher, output for the power electronics Voltage. Background technique [0003] Devices, methods and motor vehicles of the type mentioned at the outset are already known from the prior art. [0004] Today's motor vehicles have, in addition to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L1/00H02J1/00
CPCB60L1/00H02J2310/48H02J1/082B60L58/20B60L2210/10Y02T10/70Y02T10/72
Inventor T.迈尔C.本哈特
Owner ROBERT BOSCH GMBH
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