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Voltage conversion method, device and equipment

A technology for voltage conversion and signal conversion, which is applied in battery/fuel cell control devices, charging stations, electric vehicles, etc., to improve safety and solve the problem of failure to start normally

Pending Publication Date: 2020-04-14
成都广通汽车有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a voltage conversion method, device, and equipment to at least solve the technical problem in the related art that the electric vehicle cannot be started normally due to the power feeding phenomenon of the battery.

Method used

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  • Voltage conversion method, device and equipment
  • Voltage conversion method, device and equipment
  • Voltage conversion method, device and equipment

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Experimental program
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Embodiment 1

[0026] According to an embodiment of the present invention, an embodiment of a voltage conversion method is provided. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and, although A logical order is shown in the flowcharts, but in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0027] figure 1 is a flowchart of a voltage conversion method according to an embodiment of the present invention, such as figure 1 As shown, the voltage conversion method includes the following steps:

[0028] Step S102, acquiring the current state of charge of the storage battery;

[0029] The above-mentioned current state of charge (State Of Charge, referred to as SOC) is the ratio of the remaining capacity of the battery after it has been used for a period of time or left unused for a long time to its ca...

Embodiment 2

[0076] According to another aspect of the embodiments of the present invention, an embodiment of an apparatus for performing the voltage conversion method in Embodiment 1 above is also provided, Figure 4 is a schematic diagram of a voltage conversion device according to an embodiment of the present invention, such as Figure 4As shown, the voltage conversion device includes: an acquisition module 40 , a first execution module 42 and a second execution module 44 . The voltage conversion device will be described in detail below.

[0077] An acquisition module 40, configured to acquire the current state of charge of the storage battery;

[0078] The first execution module 42 is connected to the acquisition module 40, and is used to execute the first conversion operation when the current state of charge is less than the first preset state of charge, wherein the first conversion operation is used to convert the input Convert alternating current to direct current;

[0079] The s...

Embodiment 3

[0089] According to another aspect of the embodiments of the present invention, there is also provided a device, including: a memory and a processor, the memory stores a computer program; the processor is used to execute the computer program stored in the memory, and when the computer program runs, the processor Execute any one of the above-mentioned voltage conversion methods.

[0090] It should be noted that the above-mentioned device may be a computer device.

[0091] The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

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PUM

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Abstract

The invention discloses voltage conversion method, device and equipment. The method comprises the following steps: acquiring the current state of charge of a storage battery; under the condition thatthe current state of charge is smaller than a first preset state of charge, executing first conversion operation, wherein the first conversion operation is used for converting an input alternating current into a direct current; under the condition that the current state of charge is larger than a second preset state of charge, executing second conversion operation, wherein the second conversion operation is used for converting the input direct current into an alternating current, the first preset state of charge is smaller than the second preset state of charge. According to the invention, thetechnical problem that the electric vehicle cannot be normally started due to the feed phenomenon of the storage battery cannot be effectively handled in the prior art is solved.

Description

technical field [0001] The present invention relates to the field of electric vehicles, in particular to a voltage conversion method, device and equipment. Background technique [0002] Lead-acid batteries are used in pure electric buses due to their advantages such as mature technology, low cost, large battery capacity, good output following the load, and no memory effect. However, due to unreasonable charging methods and lack of correct after-sales maintenance, it is extremely It is prone to feed phenomenon, which seriously affects the starting of the vehicle. [0003] However, in the prior art, the vehicles with power feeding are mainly parked at the station, and there are two ways for emergency treatment, the first way: an external battery or electric tool battery is used for emergency power supply to start the vehicle; the second way: use the mains (AC 220V) and switch Power supply, providing 24V power supply to the vehicle to start the vehicle in an emergency. [000...

Claims

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Application Information

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IPC IPC(8): B60L53/62B60L58/12
CPCB60L53/62B60L58/12Y02T10/70Y02T10/7072Y02T90/12
Inventor 黄志宏李云黄洋邓海高姗江源董锋
Owner 成都广通汽车有限公司