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Pure electric automobile crane power supply system and control method and system thereof

A pure electric vehicle and power supply system technology is applied in the control system field of the power supply system of the pure electric vehicle crane, and can solve the problems of the pure electric vehicle crane being unable to operate continuously.

Active Publication Date: 2021-03-12
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiment of the present invention is to provide a pure electric vehicle crane power supply system, a control method of the pure electric vehicle crane power supply system and a pure electric vehicle crane The control system of the power supply system is used to solve the problem of unsustainable operation of the pure electric vehicle crane

Method used

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  • Pure electric automobile crane power supply system and control method and system thereof
  • Pure electric automobile crane power supply system and control method and system thereof
  • Pure electric automobile crane power supply system and control method and system thereof

Examples

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Embodiment 1

[0069] Please refer to figure 1 , this embodiment provides a pure electric vehicle crane power supply system, including a battery unit, a control power supply and a lifting device, the control power supply is used to provide power for the control circuit of the crane, and the power supply system also includes:

[0070] The charging device is connected to the battery unit, the control power supply and the lifting device through the power supply control unit, and is used to supply power to the battery unit, the control power supply and the lifting device; the power supply control unit is used to control the charging The way the device supplies power to the battery unit and the lifting device. The charging device is preferably a vehicle-mounted AC charger, which realizes the rectification of the three-phase AC mains input into high-voltage DC, and directly supplies power to the crane's high-voltage electrical equipment for the crane, which can meet the uninterrupted operation of ...

Embodiment 2

[0072] Such as figure 2 As shown, there is provided another pure electric vehicle crane power supply system, including a battery unit, a control power supply, a lifting device, an energy recovery device and / or a braking unit, and the control power supply is used for the control circuit of the crane To provide power, the power supply system also includes:

[0073] The charging device is connected to the battery unit, the control power supply and the lifting device through the power supply control unit, and is used to supply power to the battery unit, the control power supply and the lifting device; the power supply control unit is used to control the charging The way the device supplies power to the battery unit and the lifting device. The power supply control unit is also used to control the power supply mode between the hoisting device and the energy recovery device and / or the power supply mode between the hoisting device and the braking unit. This solution uses an energy ...

Embodiment 3

[0075] Such as Figure 5 As shown, this embodiment also provides a control method for a pure electric vehicle crane power supply system, which is applied to the above-mentioned power supply system, and the method includes:

[0076] Collect information: acquire in real time the first power-related parameters of the lifting device, the second power-related parameters corresponding to the control power supply, the current working state of the lifting device, the third power-related parameters of the control power supply, and The rated power related parameters of the charging device;

[0077] According to the current working state of the lifting device, the first power-related parameter, the second power-related parameter, the third power-related parameter and the rated power-related parameter, it is determined that the charging device The power supply mode of the battery unit and the lifting device.

[0078] The first power related parameter includes the current power P2 of the...

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PUM

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Abstract

The embodiment of the invention provides a pure electric automobile crane power supply system and a control method and system thereof, and belongs to the field of engineering machinery. The power supply system comprises a battery unit, a control power supply and a lifting device, the control power supply is used for providing power for a control loop of the crane, and the power supply system is characterized by further comprising a charging device connected with the battery unit, the control power supply and the lifting device through a power supply control unit, and used for supplying power to the battery unit, the control power supply and the lifting device; and the power supply control unit is used for controlling the power supply mode of the charging device to the battery unit and thelifting device. The reliability of power supply of the charging device is improved, and long-time continuous operation of the pure electric automobile crane is guaranteed.

Description

technical field [0001] The invention relates to the field of engineering machinery, and in particular to a pure electric vehicle crane power supply system, a control method of the pure electric vehicle crane power supply system, and a control system of the pure electric vehicle crane power supply system. Background technique [0002] Pure electric vehicle cranes work on field construction sites or construction sites most of the time. Field sites or construction sites lack fast charging equipment such as charging piles, and cannot quickly charge the high-voltage batteries of pure electric vehicle cranes. Considering the cost of the high-voltage battery and the space problem of the car body, the capacity of the high-voltage battery is limited; and the construction site requires the uninterrupted operation of the pure electric vehicle crane, and the long-term operation of the pure electric vehicle crane cannot be realized by relying on the high-voltage battery alone. [0003] S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00B60L58/12B60L7/10
CPCH02J7/0068H02J7/14H02J7/0048H02J7/00712B60L58/12B60L7/10B60L2200/40Y02T10/70Y02T10/7072
Inventor 李晓海曹书苾孙亮
Owner ZOOMLION HEAVY IND CO LTD