Device for calculating state-of-health parameters of electric automobile battery and method thereof

A state of health and electric vehicle technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of reduced battery capacity, can not truly reflect the remaining battery power, and the accuracy of SOH parameters is not high, so as to achieve the goal of improving accuracy Effect

Active Publication Date: 2016-08-31
CH AUTO TECH CORP CO LTD
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Problems solved by technology

However, the charging behavior and discharging behavior have large individual differences. If the charging type and discharging type are not distinguished, the accuracy of the calculated SOH parameters will not be high.
[0005] Moreover, as the battery is used for a long time, the battery capacity will decrease, and the remaining power (SOC) value calculated in the prior art cannot truly reflect the real remaining power of the battery.

Method used

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  • Device for calculating state-of-health parameters of electric automobile battery and method thereof
  • Device for calculating state-of-health parameters of electric automobile battery and method thereof
  • Device for calculating state-of-health parameters of electric automobile battery and method thereof

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Embodiment Construction

[0045]In order to have a clearer understanding of the technical features, purposes and effects of the invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals represent the same parts.

[0046] For the sake of brevity and intuition in description, the solution of the present invention is described below by describing several representative implementation manners. Numerous details in the embodiments are only used to help the understanding of the solutions of the present invention. But obviously, the technical solutions of the present invention may not be limited to these details when implemented. In order to avoid unnecessarily obscuring the solution of the present invention, some embodiments are not described in detail, but only a framework is given. Hereinafter, "including" means "including but not limited to", and "according to..." means "at least according...

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Abstract

The embodiment of the invention discloses a device for calculating state-of-health parameters of an electric automobile battery and a method thereof. The device comprises a reduced discharge number calculation module which is used for calculating the reduced discharge number of the battery based on the total number of discharge of the battery within a preset period of time and the discharge type of each time of discharge; a reduced charge number calculation module which is used for calculating the reduced charge number of the battery based on the total number of charge of the battery within the preset period of time and the charge type of each time of charge; and an SOH parameter calculation module which is used for calculating the SOH parameters of the battery based on the reduced discharge number and the reduced charge number.

Description

technical field [0001] The present invention relates to the technical field of automobiles, and more particularly, to a device and method for calculating State-of-Health (SOH) parameters of electric vehicle batteries. Background technique [0002] Energy shortages, oil crises and environmental pollution are intensifying, which have a huge impact on people's lives and are directly related to the sustainable development of the country's economy and society. All countries in the world are actively developing new energy technologies. As a new energy vehicle with reduced oil consumption, low pollution, and low noise, electric vehicles are considered to be an important way to solve the energy crisis and environmental degradation. Hybrid vehicles take into account the advantages of pure electric vehicles and traditional internal combustion engine vehicles at the same time. On the premise of meeting the requirements of vehicle power and mileage, it effectively improves fuel economy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36
Inventor 王克坚邱德章
Owner CH AUTO TECH CORP CO LTD
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