Electric vehicle traction motor power verification method

A traction motor and motor power technology, applied in the field of electric vehicle traction motor power verification, can solve problems such as many parameters and complex calculation process

Inactive Publication Date: 2016-07-27
SHANGHAI DAJUN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These methods involve many parameters and the

Method used

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  • Electric vehicle traction motor power verification method
  • Electric vehicle traction motor power verification method
  • Electric vehicle traction motor power verification method

Examples

Experimental program
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Embodiment 1

[0062] A method for checking the traction motor power of an electric vehicle is implemented according to the following steps:

[0063] a. Maximum speed power estimation: if figure 1 As shown, the following calculation is done in the first estimation module 1 to output the motor power estimation value P at the maximum vehicle speed motor1 , then P motor1 Value input takes the most value module 4,

[0064] The first estimation module 1 inputs the full load mass, rolling friction coefficient, air drag coefficient, transmission efficiency, vehicle speed and windward area as reference quantities, and then calculates the estimated value P of the motor power at the maximum vehicle speed motor1 ;When in use, only need to input relevant parameters, you can get the desired result;

[0065] In the calculation of the first estimation module 1, the driving force of the vehicle is mainly to overcome the friction force and air resistance, and the traction power P of the vehicle is t Expr...

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Abstract

The invention relates to the pure electric vehicle performance estimation field, to be specific, relates to an electric vehicle traction motor power verification method. The electric vehicle traction motor power verification method comprises a, highest speed power estimation; b, maximum gradient driving power estimation; c, 100km/h accelerating condition power estimation; d, extremum acquisition. The electric vehicle traction motor power verification method has advantages of simple process and reasonable result.

Description

technical field [0001] The invention relates to the field of performance estimation of pure electric vehicles, in particular to a method for verifying the power of traction motors of electric vehicles. Background technique [0002] For pure electric vehicles, the peak power of the traction motor is related to the rated speed and peak torque of the motor, and the method of calculating the power of the motor is relatively complicated. The torque output by the motor needs to be converted into the driving force for the whole vehicle through the transmission system and the wheels. When the output torque and output speed of the traction motor are reversely calculated according to the dynamic performance index of the vehicle, this calculation method is affected by the transmission ratio, tire radius and other powertrain parameters, and many parameters are involved; while for multi-speed transmission system, it is necessary to calculate the output torque and output speed in differe...

Claims

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Application Information

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IPC IPC(8): G01R31/34G06F19/00
Inventor 赵洪涛万茂文周超徐性怡
Owner SHANGHAI DAJUN TECH
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