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Double-battery-pack power supply device and control method thereof

A technology of power supply device and control method, applied in battery/fuel cell control device, battery/battery traction, transportation and packaging, etc., can solve problems such as energy loss

Inactive Publication Date: 2019-05-21
AIWAYS AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The auxiliary battery pack can be connected in parallel with the main battery pack. When the auxiliary battery pack and the main battery pack are connected in parallel, the voltage difference between the auxiliary battery pack and the main battery pack will cause charging and discharging between the two packs, resulting in unnecessary energy loss.

Method used

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  • Double-battery-pack power supply device and control method thereof
  • Double-battery-pack power supply device and control method thereof
  • Double-battery-pack power supply device and control method thereof

Examples

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Embodiment Construction

[0039] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted.

[0040] see first figure 1 , figure 1 It is a schematic diagram of a dual battery pack power supply device according to an embodiment of the present invention. figure 1 The shown dual battery pack power supply device includes a first battery pack 110 , a second battery pack 120 , a motor controller 140 and a DCDC circuit 130 . The first battery pack 110 serves as the main battery pack for daily use. The second battery p...

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PUM

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Abstract

The invention provides a double-battery-pack power supply device and a control method thereof. The double-battery-pack power supply device comprises a first battery pack, a second battery pack connected with the first battery pack in series, a motor controller used for driving a vehicle motor, and a DCDC circuit coupled to the motor controller and the first battery pack to make voltage output by the first battery pack and the second battery pack through the DCDC circuit be within the normal operating voltage range of the motor controller. The double-battery-pack power supply device aims to achieve the purpose that when the double battery packs are connected in series for power supply, the power supply voltage of the double battery packs is controlled to be within the normal operating voltage range of the motor controller through the DCDC circuit, and the situation that as the power supply voltage of the double battery packs connected in series is increased, the work of the motor controller is affected is avoided.

Description

technical field [0001] The invention relates to the field of electric vehicle charging, in particular to a dual-battery pack power supply device and a control method thereof. Background technique [0002] However, there has been no substantial breakthrough in battery technology, and the inconvenient use caused by the short driving range has become the main factor why most consumers are unwilling to buy new energy vehicles. The dual-battery pack solution can effectively extend the driving range and solve the range anxiety of consumers. It is gradually becoming a research hotspot. [0003] The dual battery pack is divided into a main battery pack and an auxiliary battery pack. The main battery pack can be used for daily use. When the user needs to travel long distances, an auxiliary battery pack can be installed. The auxiliary battery pack can be connected in series with the main battery pack. When the main battery pack and the auxiliary battery pack are connected in series,...

Claims

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Application Information

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IPC IPC(8): B60L50/64B60L53/20B60L58/10
CPCY02T10/70Y02T10/7072Y02T90/14
Inventor 刘澜涛
Owner AIWAYS AUTOMOBILE CO LTD
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