Electric power system for vehicles

A power system and electric energy technology, applied in electric traction, vehicle energy storage, electric vehicle charging technology, etc., can solve the problems of reduced lead-acid battery performance, reduced vehicle economy, increased maintenance costs, etc., and achieves reduced discharge rate and heat generation. The effect of reducing and flattening the discharge curve

Active Publication Date: 2013-05-08
MICROVAST POWER SYST CO LTD
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Problems solved by technology

Due to the low cycle life of lead-acid batteries, these electric special vehicles generally need to replace the lead-acid battery packs in about one year, which increases the maintenance costs of the vehicles. For example) special working conditions often require high power output when frequently lifting goods, which will cause the battery pack to be frequently discharged at a high rate, which will further reduce the performance of the lead-acid battery or even deteriorate rapidly, thus making the entire vehicle Reduced economy

Method used

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  • Electric power system for vehicles
  • Electric power system for vehicles
  • Electric power system for vehicles

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] figure 1 A schematic diagram of the structure of the invention is given, including at least one lead-acid battery pack 1, at least one lithium-ion battery pack 2, the lead-acid battery pack and the lithium-ion battery pack are connected in parallel, and the vehicle electric power system also includes a The control module 3 for connecting or disconnecting the lead-acid battery pack and the lithium-ion battery pack.

[0026] The voltage of the lead-acid battery pack 1 under the fully charged state is greater than the voltage of the lithium-ion battery pack 2 under the fully charged state. In the present embodiment, the lead-acid battery pack voltage is 24V, and the capacity is 100Ah; the lithium-ion battery pack voltage is 20V, The capacity is 10Ah.

[0027]The control module 3 includes a battery management system 31 and a rela...

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Abstract

The invention provides an electric power system for vehicles. The electric power system comprises at least one plumbic acid battery pack and at least one lithium ion battery pack. The at least one plumbic acid battery pack is in parallel connection with the at least one lithium ion battery pack. The electric power system for the vehicles further comprises a control module for controlling connection or disconnection of the at least one plumbic acid battery pack and the at least one lithium ion battery pack. The electric power system for the vehicles is long in service life and high in economy.

Description

technical field [0001] The invention relates to an electric energy power system for a vehicle, in particular to an electric energy power system for a special vehicle. Background technique [0002] With the decrease of petroleum resources and the seriousness of environmental pollution, environmental protection, energy saving and emission reduction have become the trend and trend of the world. In this context, in recent years, electric vehicles (mainly including hybrid vehicles, plug-in hybrid vehicles, and pure electric vehicles) with batteries as the main power source or part of the power source have gradually appeared and increased, and the carbon emissions of electric vehicles The carbon emissions of pure electric vehicles are even zero, and they have the characteristics of high energy conversion efficiency, which makes people regard electric vehicles as an important choice to replace internal combustion locomotives in the future. But at present, the popularity of electri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18
CPCY02T10/7011Y02T10/7016Y02T90/16Y02T10/70
Inventor 赵彪肖调坤
Owner MICROVAST POWER SYST CO LTD
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