Self-circulation charge-discharge device and power assembly system for electric vehicle

A technology for charging and discharging devices and electric vehicles, which is applied in the direction of electric vehicles, battery/fuel cell control devices, electrical devices, etc., can solve problems such as vehicle safety risks, battery failures, etc., to improve driving range, overcome mileage anxiety, The effect of reducing the probability of battery failure

Inactive Publication Date: 2017-07-18
SHANGHAI RUIYU AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the voltage and current output by the auxiliary generator cannot be guaranteed to match the discharge chara

Method used

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  • Self-circulation charge-discharge device and power assembly system for electric vehicle
  • Self-circulation charge-discharge device and power assembly system for electric vehicle

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Embodiment Construction

[0018] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways than those described here, so the present invention is not limited by the specific embodiments disclosed below.

[0020] As indicated in this application and claims, the terms "a", "an", "an" and / or "the" do not refer to the singular and may include the plural unless the context clearly indicates an exception. Generally speaking, the terms "comprising" and "comprising" only suggest the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also contain other st...

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Abstract

The invention provides a self-circulation charge-discharge device for an electric vehicle. The self-circulation charge-discharge device comprises an electric generator, a charge-discharge switch power distribution module, a first battery pack, a second battery pack, a motor driver and a charge-discharge management unit, wherein the charge-discharge management unit is configured to output a first discharge management instruction and a second discharge management instruction, select the first battery pack or the second battery pack to discharge, output a first charge management instruction and a second charge management instruction and determine whether the first battery pack or the second battery pack is charged; the first battery pack is provided with a first battery management unit and is configured to control on and off of a charge path from the charge-discharge switch power distribution module to the first battery pack according to the first charge management instruction and control on and off of a discharge path from the first battery pack to the motor driver according to the first discharge management instruction; and the second battery pack is provided with a second battery management unit and is configured to control on and off of a charge path from the charge-discharge switch power distribution module to the second battery pack according to the second charge management instruction and control on and off of a discharge path from the second battery pack to the motor driver according to the second discharge management instruction.

Description

technical field [0001] The invention mainly relates to the technical field of electric vehicle power, in particular to a self-circulating charging and discharging device and a power assembly system of the electric vehicle. Background technique [0002] At present, due to the serious pollution of the environment by internal combustion engine vehicles, electric vehicles, as a green new energy technology, have gradually attracted people's attention due to their zero emissions and low noise. [0003] There are several types of electric vehicles, hybrid electric vehicle (Hybrid Electric Vehicle, HEV), plug-in hybrid electric vehicle (Plug-in Hybrid Vehicle, PHV) and battery electric vehicle (BEV). A hybrid vehicle is a compromise between a traditional vehicle and a pure electric vehicle, and it uses both the internal combustion engine of a traditional vehicle and the electric motor of a pure electric vehicle for hybrid drive. The difference between plug-in hybrid electric vehicl...

Claims

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Application Information

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IPC IPC(8): B60L11/12B60L11/18B60L3/00B60L50/15
CPCB60L50/61B60L58/18B60L58/10B60L58/20B60L3/00B60L58/13Y02T10/62Y02T10/70
Inventor 吴雄良娄珍申刘健
Owner SHANGHAI RUIYU AUTOMOBILE CO LTD
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