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Capacitive load automatic charging and discharging integrated protection circuit of hybrid electric drive armored vehicle

A technology of hybrid electric drive and capacitive load, which is applied in the direction of electric vehicles, electrical devices, vehicle components, etc., and can solve the problems of large volume, high resistance power, and high voltage

Active Publication Date: 2020-01-21
CHINA NORTH VEHICLE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high voltage of electric vehicles and the large capacity of the supporting capacitor, the selected pre-charging and discharging resistors have high power and large volume

Method used

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  • Capacitive load automatic charging and discharging integrated protection circuit of hybrid electric drive armored vehicle

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Embodiment Construction

[0038] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0039] In order to solve the problems of the prior art, the present invention conducts special research on the pre-charging and discharging technology of the supporting capacitor in the high-voltage power supply system of the vehicle, adopts a new circuit framework, and designs a brand-new pre-charging and discharging protection circuit, which saves Devices used. It is beneficial to the miniaturization and integrated design of the power distribution protection device on the vehicle.

[0040]Therefore, the present invention provides a high-voltage capacitive load charge-discharge integrated protection circuit, which is composed of multiple high-voltage contactors, a high-voltage fast fuse, a high-power resistor, multipl...

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Abstract

The invention belongs to the technical field of tank armored vehicle comprehensive electric system high-voltage safety protection, and in particular, relates to a capacitive load automatic charging and discharging integrated protection circuit of a hybrid electric drive armored vehicle. A high-voltage bus, a high-voltage battery set and a high-voltage capacitive load are arranged at the external;and the circuit adopts such devices as multiple high-voltage contactors, a high-voltage quick melting machine, a high-power resistor and multiple voltage sensors. The circuit is used for achieving a precharging protection function on high-voltage capacitive loads of the hybrid electric drive armored vehicle during high-voltage electrification of the vehicle, and can achieve a residual charge relief function after high-voltage power failure of the capacitive loads. The circuit follows the integrated design philosophy, integrates precharging resistance and discharging resistance of an electric vehicle, greatly reduces the sizes of precharging protection and discharging protection function units, and achieves the design purposes of miniaturization and integration.

Description

technical field [0001] The invention belongs to the technical field of high-voltage safety protection of integrated power systems of tank and armored vehicles, and in particular relates to an integrated protection circuit for automatic charging and discharging of capacitive loads of hybrid electric-driven armored vehicles. Background technique [0002] With the continuous improvement of equipment requirements in the future battlefield, high-power electric drive devices, high-energy weapons, electric actuators and other devices are widely used in hybrid electric drive tanks and armored vehicles. In order to stabilize the high-voltage input voltage of the equipment, the high-voltage input terminals of these equipment are equipped with supporting capacitors of different sizes. During the high-voltage power-on process of the vehicle, it is necessary to use a pre-charging circuit to pre-charge the supporting capacitor of the high-voltage load, so that the voltage of the supportin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00B60L3/04
CPCB60L3/0046B60L3/04
Inventor 戚于飞王道灿兰志军乔凤普李玉刚刘胜利宋克岭李艳明蒋任君张思宁
Owner CHINA NORTH VEHICLE RES INST
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