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Calibration method for design parameters of electric vehicle traction motor

A technology for traction motors and electric vehicles, which is applied to electric vehicles, manufacturing motor generators, motors, etc., can solve the problems of difficult to reflect the characteristics of typical motion conditions of the whole vehicle, and complicated verification steps.

Active Publication Date: 2019-07-30
SHANGHAI DAJUN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current calibration method is still difficult to reflect the characteristics of the typical motion conditions of the vehicle, and the calibration steps are relatively cumbersome

Method used

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  • Calibration method for design parameters of electric vehicle traction motor
  • Calibration method for design parameters of electric vehicle traction motor
  • Calibration method for design parameters of electric vehicle traction motor

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Embodiment 1

[0047] A method for verifying design parameters of electric vehicle traction motors, characterized by the following steps:

[0048] (1) Set up the uniform motion calculation module and the accelerated motion calculation module based on Matlab / Simulink:

[0049] In this embodiment, both the uniform motion calculation module and the accelerated motion calculation module select a digital signal controller;

[0050] The functions of the uniform motion calculation module are as follows: figure 1 As shown in the figure, the input of the uniform motion calculation module is the vehicle parameters, actual speed, ramp angle and other information; the uniform motion calculation module mainly calculates the rolling friction resistance, air resistance and ramp resistance of the electric vehicle, calculates the resistance and the current vehicle speed, directly Calculate the traction power of the whole vehicle, indirectly calculate the power of the traction motor through conversion effici...

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Abstract

The invention relates to the electric vehicle power assembly design field, to be specific, relates to an electric vehicle traction motor design parameter verification method. The electric vehicle traction motor design parameter verification method comprises (1) arrangement of a uniform motion calculation module and an accelerated motion calculation module; (2) arrangement of a highest speed calculation module, a common speed calculation module, and a maximum gradient calculation module; and arrangement of an accelerated motion condition calculation module; (3) arrangement of a verification module; (4) selection of verification values according to a maximum principle. The electric vehicle traction motor design parameter verification method has advantages of simple process, comprehensive verification, and reasonable result.

Description

technical field [0001] The invention relates to the field of powertrain design on electric vehicles, in particular to a method for verifying design parameters of traction motors of electric vehicles. Background technique [0002] The traction motor of an electric vehicle is the main power source of the whole vehicle. When verifying the design parameters of the traction motor, simulation modeling and analysis are usually used. The performance index of the vehicle is compared with the calculation results and the design parameters to realize the function of verification. It is necessary to deeply understand the content of technical indicators of components such as batteries, gearboxes, controllers, motors, and wheels, and master complex parameter settings, requiring a high degree of specialization. The current verification method is still difficult to reflect the characteristics of the typical motion conditions of the vehicle, and the verification steps are also cumbersome. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/00G06F17/50
CPCY02T10/64
Inventor 万茂文赵洪涛徐性怡
Owner SHANGHAI DAJUN TECH