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Hub motor random electromagnetic vibration characteristic calculation method and system

An in-wheel motor, electromagnetic vibration technology, applied in electrical digital data processing, design optimization/simulation, special data processing applications, etc.

Pending Publication Date: 2021-11-19
HUBEI UNIV OF ARTS & SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a calculation method and system for random electromagnetic vibration characteristics of hub motors, which solves the problems disclosed in the background technology

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  • Hub motor random electromagnetic vibration characteristic calculation method and system
  • Hub motor random electromagnetic vibration characteristic calculation method and system
  • Hub motor random electromagnetic vibration characteristic calculation method and system

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Embodiment Construction

[0047] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0048] Such as figure 1 As shown, a method for calculating the random electromagnetic vibration characteristics of an in-wheel motor includes the following steps:

[0049] Step 1. According to the unevenness of the road surface, the stochastic dynamic analysis of the electric vehicle body and wheels is carried out to obtain the random vibration factors affecting the in-wheel motor;

[0050] Step 2: Carry out dynamic eccentricity analysis of hub motor stator and rotor, and calculate hub motor stator and rotor eccentricity according to random vibration factors;

[0051] Step 3, according to the hub motor stator and rotor eccentricity, calculate the air gap magnetic flux density when the hub moto...

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Abstract

The invention discloses a hub motor random electromagnetic vibration characteristic calculation method and system. The method is characterized in that: a radial electromagnetic force vibration acceleration transfer function of a hub motor under random vibration factors is calculated by integrating random vibration dynamics and electromagnetic mechanics, and electromagnetic characteristics of the hub motor under random vibration can be analyzed based on the transfer function. Thus, the influence of road surface random vibration factors on electromagnetic vibration of the hub motor, namely random electromagnetic vibration characteristics of the hub motor, can be reflected more comprehensively.

Description

technical field [0001] The invention relates to a calculation method and system for random electromagnetic vibration characteristics of a hub motor, belonging to the field of new energy electric vehicles. Background technique [0002] As the key component of the electric vehicle hub drive, the performance of the hub motor directly determines the dynamic performance of the vehicle. However, due to the random vibration generated by the unevenness of the road surface during the operation of the hub motor, the ride comfort and handling stability of the electric vehicle are affected. The intensification of the contradiction of sex has affected the ride comfort and driving safety of the vehicle. [0003] A major contributor to hub motor vibration is the unbalanced radial electromagnetic force of the motor. Because the unbalanced radial electromagnetic force directly acts on the wheels without damping, it will not only deteriorate the working environment of the motor and reduce it...

Claims

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Application Information

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IPC IPC(8): G06F30/15G06F30/20G06F119/14
CPCG06F30/15G06F30/20G06F2119/14Y02T90/00
Inventor 张海军万少华张明杰
Owner HUBEI UNIV OF ARTS & SCI