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A battery pack topology device with high-voltage lines at both ends and its control method

A control method and battery pack technology, applied to battery/fuel cell control devices, batteries, secondary batteries, etc., can solve the problems of reducing the energy efficiency of the battery pack and increasing the cost of the high-voltage line of the battery pack, so as to achieve strong practicability and improve energy Efficiency, the effect of reducing the use of

Active Publication Date: 2020-06-16
氢驰动力科技山西有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This solution increases the cost of the high-voltage line of the battery pack, and at the same time, the increase in internal resistance due to the increase in the length of the high-voltage line will inevitably reduce the energy efficiency of the battery pack.

Method used

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  • A battery pack topology device with high-voltage lines at both ends and its control method
  • A battery pack topology device with high-voltage lines at both ends and its control method
  • A battery pack topology device with high-voltage lines at both ends and its control method

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no. 1 example

[0037] For the first embodiment, the above-mentioned control method of the battery pack topology device with high-voltage lines at both ends includes the following content:

[0038] When the battery pack A is connected to the main drive circuit, the first switch K1, the second switch K2, the main positive switch K4, the main negative switch K5, the fast charge positive switch K6, Both the fast charging negative switch K7 and the third switch K3 are in an off state; when precharging, first close the third switch K3 and the main negative switch K5, and then close the first switch K1; when the battery When the difference between the voltage at both ends of the pack driving connector and the battery voltage of the battery pack is within the preset range, it means that the pre-charging is complete, then the main positive switch K4 is closed, and the first switch K1 is opened. At this time, the electric vehicle can be driven by connecting the battery pack A and the main drive circui...

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Abstract

The invention provides a battery pack topology device with a two-end-out high voltage line and a control method thereof. The battery pack topology device comprises a battery pack, a first switch, a second switch, a third switch, a main positive switch, a main negative switch, a rapid charge positive switch, a rapid charge negative switch, and a resistance. The first switch, the second switch, themain positive switch, and the main negative switch are arranged on the front end of the battery pack. The fast charge positive switch and the fast charge negative switch are arranged on the rear end of the battery pack. The provided topology device and control method thereof can realize topology of a driving connector and a rapid charge connector on two ends of the battery pack; the using of highvoltage wiring harness is reduced, and the energy efficiency of the battery pack is improved.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a battery pack topology device and a control method thereof with high-voltage lines at both ends. Background technique [0002] An electric vehicle refers to a vehicle powered by a vehicle-mounted power supply, driven by a motor to drive the wheels, and conforming to the requirements of road traffic and safety regulations. Due to its smaller impact on the environment than traditional cars, its prospects are widely optimistic. Affected by traditional car driving habits, the requirement for long driving range of electric vehicles has gradually become a mainstream trend. For example, the Tesla Model-S long driving range version has a maximum pure electric driving range of nearly 500 kilometers. 400km electric car. [0003] Electric vehicles provide kinetic energy through the battery pack (Battery Pack) configured on it. In the prior art, the driving connector and fast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/42H01M10/44B60L50/64B60L58/10
CPCB60L50/64H01M10/425H01M10/441H01M2220/20Y02E60/10Y02T10/70
Inventor 谷峰
Owner 氢驰动力科技山西有限公司
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