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System for monitoring dynamic energy consumption and driving range of electric automobile

A technology for driving range and electric vehicles, which is applied in the direction of electric vehicles, electrical devices, vehicle components, etc., can solve the problems of electric vehicle energy consumption and calculation complexity of driving range, and achieve the effect of accurate energy consumption values

Inactive Publication Date: 2016-02-03
BRILLIANCE AUTO
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AI Technical Summary

Problems solved by technology

This characteristic of lithium-ion batteries makes the calculation of electric vehicle energy consumption and driving range more complicated

Method used

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  • System for monitoring dynamic energy consumption and driving range of electric automobile
  • System for monitoring dynamic energy consumption and driving range of electric automobile
  • System for monitoring dynamic energy consumption and driving range of electric automobile

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Embodiment 1

[0029] Depend on Figure 1-4 Shown, the implementation principle of the present invention is specifically described:

[0030] Such as figure 1 As shown, it includes a power battery, and a temperature acquisition unit, a current acquisition unit, a high-voltage acquisition unit, and a vehicle speed acquisition unit distributed around the power battery. The mileage unit is connected to the input end of the mileage formula calculation unit; the current acquisition unit, the high voltage acquisition unit and the vehicle speed acquisition unit are connected to the input end of the dynamic energy consumption filter unit through the dynamic energy consumption calculation unit; the temperature acquisition unit and the SOC The unit for calculating the mileage by looking up the table is connected with the battery temperature correction coefficient calculation unit, the battery temperature correction coefficient calculation unit and the mileage formula calculation unit are connected wit...

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Abstract

The invention discloses a system for monitoring dynamic energy consumption and the driving range of an electric automobile. The system is technically characterized in that in the driving process of the automobile, 100-kilometer energy consumption of the automobile in every five seconds is obtained through an integration algorithm, mean value calculation is conducted on several groups of 100-kilometer energy consumption data, a relatively stable and accurate 100-kilometer energy consumption value is finally obtained, and the circumstance that energy consumption display of an instrument dithers is avoided; in a driving range calculation method, influences, produced on discharge performance of a battery, of the battery temperature, the State of Charge (SOC) and the State of Health (SOH) are taken into consideration, and calculation for the driving range of the automobile is made to be more accurate and closer to the actual condition. By means of the calculation methods of the 100-kilometer energy consumption and the driving range, the phenomenon that the 100-kilometer energy consumption dithers can be avoided, and the relatively accurate driving range can be obtained. Effectiveness of the methods is validated through a real automobile, and the methods are applicable to the pure electric automobile needing to use a power battery.

Description

technical field [0001] The invention relates to the technical field of dynamic energy consumption of electric vehicles, in particular to a monitoring system for dynamic energy consumption and driving range of electric vehicles. It is suitable for pure electric vehicles that need to use power batteries. Background technique [0002] At present, public charging facilities for electric vehicles are still not popularized and perfected. Therefore, the difficulty of charging electric vehicles causes drivers to pay more attention to the display information such as the driving range and energy consumption of electric vehicles. At present, the power batteries of electric vehicles are generally lithium-ion batteries, and the discharge performance of lithium-ion batteries is always limited by factors such as temperature, SOC, and SOH. This characteristic of lithium-ion batteries makes the calculation of energy consumption and driving range of electric vehicles more complicated. Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/12
Inventor 罗金修王怀龙高力杨依楠
Owner BRILLIANCE AUTO
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