Power supply system, control method and device of power supply system and unmanned vehicle

By using a battery management unit and multiple battery packs in the power supply system of the unmanned vehicle, each battery pack is equipped with a pulse generator, which solves the problem of battery charging when the unmanned vehicle is replaced, and achieves a high stability and safe battery replacement process.

CN119659419AInactive Publication Date: 2025-03-21SHANGHAI ECAR TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510192324.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2025-03-21
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When the unmanned vehicle is replacing the battery, the two replaced batteries are reversely charged, resulting in technical problems that the unmanned vehicle cannot guarantee the normal power supply of the unmanned vehicle and is prone to damage the battery cell.

Method used

A power supply system is designed, including a battery management unit and a power supply unit. At least two battery packs are provided in the power supply unit. Each battery pack includes a pulse generator. The battery management unit is used to control the target battery pack to power the load to be powered, and when the power is lower than the preset value, an output control signal is sent to the new target battery pack based on the current driving condition of the unmanned vehicle to control the output of the preset power.

Benefits of technology

The power output of the battery pack is controlled by pulse signals, and high stability battery swap of the unmanned vehicle is achieved, avoiding battery cell damage caused by excessive backcharging current between the battery packs, and ensuring normal power supply of the unmanned vehicle.

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Abstract

The embodiment of the invention discloses a power supply system, a control method and device of the power supply system and an unmanned vehicle. A plurality of battery packs provided with pulse generators are used as power supply equipment of loads to be powered of the unmanned vehicle; the to-be-replaced battery pack is controlled by the pulse signal to output the electric quantity at the preset power to complete battery replacement, so that the technical problems that normal power supply of the unmanned vehicle cannot be ensured and battery cores of the batteries are easily damaged due to reverse charging of two mutually replaced batteries during battery replacement of the unmanned vehicle in the prior art are solved; the technical effects that high-stability battery replacement is carried out on the unmanned vehicle, and the situation that battery cells are damaged due to the fact that the reverse charging current is too large between the battery packs is avoided are achieved.
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