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Dual power source battery auxiliary system for electric vehicle

A power battery and dual power source technology, which is applied in the direction of electric vehicles, electric traction, and capacitor traction, can solve the problems of increased load on the transmission shaft, impact on service life, and unusable vehicles, so as to reduce load and prolong service life Effect

Inactive Publication Date: 2018-05-29
JIANGSU YUEDA GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In this electric drive mode, in order to ensure the normal operation of the vehicle, it is necessary to rely on the overall coordination and cooperation of the power battery, power battery management unit, power distribution cabinet, frequency converter, and drive motor. Once a certain part fails, it will cause the vehicle to malfunction. Not available
However, due to the great uncertainty of vehicle conditions and road conditions, it is difficult to ensure that the power battery, power battery management unit, power distribution cabinet, frequency converter, and drive motor all maintain normal working conditions. big hidden danger
[0005] At the same time, in order to obtain better vehicle performance, large-capacity batteries and motors are used as much as possible, which increases the load on the transmission shaft and affects the service life of the vehicle

Method used

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  • Dual power source battery auxiliary system for electric vehicle
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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0022] Such as figure 2 As shown, the dual power source battery auxiliary system for electric vehicles described in the present invention includes an electric drive unit that drives the wheels to rotate. Specifically, the electric drive unit includes two power supply circuits that are independent of each other. A power battery and a supercapacitor bank are arranged in parallel in the power supply circuit of the power battery. It also includes the vehicle controller, which is the core control component of the electric vehicle, which is responsible for the collection and processing of various operating signals of the electric vehicle and corresponding control of the electric vehicle according to the predetermined strategy according to the collected signals As a function, the ...

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Abstract

The invention discloses a dual power source battery auxiliary system for an electric vehicle. The dual power source battery auxiliary system comprises an electric drive unit for driving rotation of vehicle wheels, the electric drive unit includes two mutually independent power battery power supply circuits, and power batteries and super capacitor groups are disposed in parallel in the power battery power supply circuits; the dual power source battery auxiliary system further includes a vehicle controller, and the vehicle controller is separately electrically connected with the two power battery power supply circuits; and when one of the power battery power supply circuits fails, the power batteries and the super capacitor groups of the other one of the power battery power supply circuits is controlled by the vehicle controller to increase power output to maintain a current running state of the vehicle.

Description

technical field [0001] The invention relates to a battery system of an electric vehicle, in particular to a dual power source battery auxiliary system for the electric vehicle. Background technique [0002] As the voice of environmental protection is getting higher and higher, electric vehicles are becoming more and more popular. [0003] At present, electric vehicles are driven by a single power source, that is, figure 1 As shown, it includes an electric drive unit that drives the wheels of the vehicle. The electric drive unit specifically includes a power battery and a supporting power battery management unit. The power of the power battery is provided to the inverter through the power distribution cabinet, and then the inverter drives the The drive motor rotates and drives the wheels to rotate through the gearbox. [0004] In this electric drive mode, in order to ensure the normal operation of the vehicle, it is necessary to rely on the overall coordination and cooperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/00B60L11/18
CPCB60L50/40B60L58/10Y02T10/70
Inventor 刘吉顺李松林余慧兰戴树海葛长友
Owner JIANGSU YUEDA GRP
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