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Power battery power supply system for rail engineering vehicle

A rail engineering vehicle and power battery technology, which is applied in the direction of battery/fuel cell control devices, secondary batteries, battery pack components, etc., can solve the problems of inability to maintain vehicle operation, small load capacity, and energy density limitations, and achieve Improved operational flexibility, long running time, and guaranteed service life

Pending Publication Date: 2020-07-03
清研锐为(洛阳)轨道交通科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of the energy density of the maintenance-free battery pack, the load capacity of each vehicle is small, which cannot maintain the long-term running needs of the vehicles.

Method used

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  • Power battery power supply system for rail engineering vehicle

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Embodiment Construction

[0024] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0025] see figure 1 , a power battery power supply system for rail engineering vehicles in the present invention, including a battery box group composed of several battery boxes 3 connected in series or in parallel, the series connection of the battery boxes is used to increase the power supply voltage, and the batteries If the boxes are connected in parallel, the capacity can be expanded, so as to achieve the capacity and voltage required by the rail engineering vehicle; the battery box group is electrically connected to the high-voltage DC bus 2, which can obtain the DC power on the high-voltage DC bus when charging, and can also be used when discharging. To provide electric energy for other loads of the vehicle connected to the high-voltage DC bus, the high-voltage DC bus 2 is used as a high-voltage powe...

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Abstract

A power battery power supply system for a rail engineering vehicle comprises a battery box group connected to a high-voltage direct-current bus, the battery box group comprises a plurality of batteryboxes, the power battery power supply system further comprises a battery management system and a charging system, the battery management system comprises a battery management unit BMU, and the charging system comprises a charging interface, a vehicle-mounted charger, a DC / DC module and a storage battery, wherein the charging interface comprises a ground charger interface and a three-phase commercial power interface, the battery box comprises a battery cell and a battery cell monitoring controller CSC connected with the battery management unit BMU, and the battery management unit BMU is furtherin communication connection with the vehicle-mounted charger, the ground charger interface, the DC / DC module and a digital control core NCU of the rail engineering vehicle. The multiple groups of power battery boxes are arranged, and the battery management system is matched to monitor and manage the battery using state, so when the rail engineering vehicle is provided with the battery system withthe same weight / size as a traditional vehicle, and the running time of the vehicle is long.

Description

technical field [0001] The invention belongs to the technical field of rail engineering vehicles, in particular to a power battery power supply system for rail engineering vehicles. Background technique [0002] A technical solution that is relatively close to the present application in the prior art is an invention patent with the patent name "A Dual Power Rail Milling Vehicle with Electric Catenary and Battery Pack" and the application number 201710501672.4. The battery pack is used in the car as the total backup power supply of the vehicle, and the type of the battery pack used in the example described in this application is a maintenance-free lead-acid battery pack. At the same time, the invention does not involve the internal system configuration and battery management scheme of the battery pack. Although the maintenance-free battery pack is convenient to use and low in price, it has great disadvantages in terms of service life and energy density. [0003] At present,...

Claims

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Application Information

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IPC IPC(8): B60L1/00B60L53/20B60L58/26B60L58/27B60L58/10H01M2/20H01M10/613H01M10/615H01M10/625
CPCB60L1/00B60L53/20B60L58/26B60L58/27B60L58/10H01M10/613H01M10/615H01M10/625B60L2200/26H01M50/502Y02T10/70Y02T10/7072Y02T90/14Y02E60/10Y02T90/16
Inventor 白玉良钱兆勇孔德隆李佩刚王军郭高峰王建生李启铭巴青城冯创杨召辉王佛民张建坡王丽娜杨海云何莉鹏
Owner 清研锐为(洛阳)轨道交通科技有限公司
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