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Detecting device and method for mixed power automobile battery remainder

A battery residual, hybrid technology, applied in the field of automobile control, can solve the problem that the battery is not suitable for hybrid electric vehicles, etc., to achieve the effect of improving the service life, improving the accuracy and rational use

Inactive Publication Date: 2007-04-11
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the traditional simple method of calculating the remaining battery capacity only by current time integration is not suitable for hybrid vehicles.

Method used

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  • Detecting device and method for mixed power automobile battery remainder
  • Detecting device and method for mixed power automobile battery remainder
  • Detecting device and method for mixed power automobile battery remainder

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Embodiment Construction

[0019] As shown in Fig. 1 and Fig. 2, a kind of hybrid electric car battery remaining quantity detection device and detection method, comprise input circuit 1, the battery pack that is connected with DC / DC2, described battery pack 3 and data acquisition module 5 The space is connected with the voltage detection circuit 4, the temperature detection circuit 10, and the current detection circuit 9 respectively, and the described data acquisition module 5 is connected with the CPU central controller 7 through the A / D conversion module 6, and the described CPU central controller 7 is also connected to the output display module 11 for displaying the remaining battery capacity of the battery pack 3 , and a load module 8 is arranged between the CPU central controller 7 and the battery pack 2 . The load module 8 is connected to the negative pole of the battery pack 3 . Based on the current time integral of the battery pack 2, when DC / DC2 dynamically charges the battery pack 2, the batt...

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Abstract

The present invention discloses device and method of detecting the battery remainder in mixed power automobile. Between the CPU and the battery, one load module is set for calculating the resistance value of the battery according to its voltage and current. The CPU calculates the capacity of the battery via integrating the current to the time and corrects the capacity by means of the voltage the voltage detecting circuit detects, the temperature the temperature detecting circuit detects, the resistance the load module calculates, and the empirical formula. The present invention has raised accuracy, and is favorable to reasonable utilization of battery and long service life of battery.

Description

technical field [0001] The invention belongs to the automobile control technology, and in particular relates to a detection device and a detection method for the remaining battery capacity of a hybrid electric car. Background technique [0002] At present, people pay more and more attention to the protection of the environment and the effective and rational use of energy. Therefore, efficient, energy-saving and environment-friendly hybrid vehicles have become the development trend of the automobile industry. Hybrid electric vehicles have attracted more and more attention because of their low emission advantages of electric vehicles and high specific energy advantages of internal combustion engine vehicles, and have become one of the new vehicles that are being developed. Batteries are an important part of the power output of hybrid electric vehicles. It is especially important for the implementation of the entire control strategy of the hybrid electric vehicle to achieve h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36G01R11/00B60L3/00
Inventor 方运舟韩友国
Owner CHERY AUTOMOBILE CO LTD
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