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Method and system for generating efficiency pulse chart of electric car drive system

A drive system, electric vehicle technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of inaccurate data processing, affecting the effectiveness of energy efficiency analysis, and the validity analysis of no interpolated data sets, etc. To achieve the effect of guaranteeing the effectiveness

Inactive Publication Date: 2015-03-25
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology

[0010] figure 1 It shows the efficiency map of an electric vehicle drive system obtained based on the generation method of the existing efficiency map. Since the generation method of the existing efficiency map interpolates the processed data group in step 4, it does not interpolate the interpolated data group To conduct an effectiveness analysis, therefore, figure 1 There are many inaccurate data processing points in the elliptic curve A, which will directly affect the effectiveness of the energy efficiency analysis of the electric vehicle drive system based on the efficiency map

Method used

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  • Method and system for generating efficiency pulse chart of electric car drive system
  • Method and system for generating efficiency pulse chart of electric car drive system
  • Method and system for generating efficiency pulse chart of electric car drive system

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Embodiment Construction

[0049]Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0050] In order to solve the problem that there are many inaccurate data processing points in the electric vehicle drive system efficiency map (efficiency map) obtained based on the existing generation method, the present invention directly affects the energy efficiency of the electric vehicle drive system based on the efficiency map. Analyzing the effectiveness of the problem, a new generation method is provided, such as figure 2 Shown include the following steps:

[0051] Step S1: Obtain the original data groups reflecting the corresp...

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Abstract

The invention discloses a method and system for generating an efficiency pulse chart of an electric car drive system. The method comprises the steps that original data sets are obtained from a rack and forms an original data set sequence, wherein the original data sets reflect the relation among the output torque, the rotation speed and the efficiency of the drive system; unqualified data sets in the original data set sequence are deleted, and a basic data set sequence is obtained; null shift processing is conducted on the basic data set sequence, and a processed data set sequence is obtained; according to the processed data set sequence, a mechanical characteristic curve is obtained; interpolation is carried out on the processed data set sequence; data sets, located outside the mechanical characteristic curve, in the processed data set sequence are deleted, and a valid data set sequence is obtained; the efficiency pulse chart is generated through the valid data set sequence. According to the method and the system, validity analysis is carried out on all data sets after interpolation, so that the finally generated efficiency pulse chart does not have inaccurate points, and then the validity of energy efficiency analysis carried out on the electric car drive system based on the efficiency pulse chart can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of energy efficiency analysis of an electric vehicle drive system, in particular to a method and system for generating an efficiency map of an electric vehicle drive system. Background technique [0002] The traditional fuel vehicle industry is facing huge challenges due to energy shortages and climate warming. Energy-saving and environmentally friendly electric vehicles have attracted more and more attention, and have begun to move from the laboratory to the market. [0003] The efficiency map (efficiency map) of the electric vehicle drive system reflects the relationship between the efficiency of the drive system and the speed of the drive motor and the output torque of the drive motor. The drive system includes the drive motor, the drive motor controller, the drive motor and the drive motor The auxiliary device necessary for the normal operation of the controller, and the drive system efficiency is the pe...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 杜成磊仇海波詹海庭
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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