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Torque directional distribution electric drive axle design method

A technology of electric drive and design method, applied in the direction of control drive, electric vehicle, electric energy management, etc., can solve the problem that the quality and product competitiveness of high-performance electric vehicles cannot be fully displayed, and improve the limit turning ability and turning maneuverability. Effect

Active Publication Date: 2017-06-09
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no precedent for the application of this technology in electric vehicles, so the quality and product competitiveness of high-performance electric vehicles cannot be fully demonstrated

Method used

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  • Torque directional distribution electric drive axle design method
  • Torque directional distribution electric drive axle design method
  • Torque directional distribution electric drive axle design method

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Embodiment Construction

[0062] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0063] Such as figure 1 As shown, the torque directional distribution electric drive axle includes a main drive mechanism, and the main drive mechanism can be driven by the main drive motor 1036 or an engine or the like. In this embodiment, the main driving motor 1036 is used as an example for illustration. The torque directional distribution electric transaxle also includes a cylindrical gear final reducer, a traditional bevel gear differential 1019 and a torque directional distributor 1040 . Such as figure 1 As shown, the main drive motor 1036 is a permanent magnet synchronous motor including an inner splined output shaft, and its axis is arranged parallel to the axis of the designed torque directional distribution electric drive axle. Such as figure 1 As shown, the cyl...

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Abstract

The invention provides a torque directional distribution electric drive axle design method. The method includes the following steps that parameter matching calculation of a main drive motor of a torque directional allocation electric drive axle is completed according to vehicle dynamic indexes, the speed ratio of a cylindrical gear main speed reducer of the torque directional allocation electric drive axle is calculated according to the speed of a cruiser, and the number of stages of the main speed reducer is determined; the feature parameters k1 and k2 of a two-row planetary gear TV mechanism and the feature parameter k0 of a single-row two-line planetary gear coupling mechanism are calculated; the maximum differential torque deltaTmax of a torque directional distributor is calculated; the range of the peak torque T1038max of a TV control motor is determined, the range of the peak rotation speed n1038max of the TV control motor is determined, and a TV control motor is selected according to the ranges; the transmission ratio C of planetary gear speed reduction mechanisms is calculated according to deltaTmax and T1038max, the number of rows of the planetary gear speed reduction mechanisms of the torque directional distribution electric drive axle is determined, and feature parameters k3, (k4) and (k5) of each row are determined according to optimization targets, with the minimum feature parameter difference, of the planetary gear speed reduction mechanisms.

Description

technical field [0001] The invention belongs to the field of electric vehicle drive, and in particular relates to a design method of an electric drive axle with torque orientation distribution function. Background technique [0002] Electric vehicles are the future direction of automobile development. In recent years, electric vehicles have developed rapidly at home and abroad, and more and more enterprises and universities have conducted in-depth research on electric vehicles. Compared with traditional internal combustion engine vehicles, electric vehicles not only have higher energy efficiency, but also have very low pollution emission levels, and the vibration and noise produced are also very small. It can be said that they are almost "zero pollution" vehicles. In addition, because the speed and torque are easy to obtain, electric vehicles can be controlled more precisely, and because the motor responds quickly, the electric vehicle has better acceleration performance an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20
CPCB60L15/2036B60L2240/421B60L2240/423Y02T10/72
Inventor 王军年孙娜娜杨斌李修森张垚
Owner JILIN UNIV
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