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Calculating method and device for electric-automobile driving-shaft service life

A technology for electric vehicles and drive shafts, which is applied in computing, computer-aided design, complex mathematical operations, etc., can solve problems such as the lack of a method for calculating the life of electric vehicle drive shafts, and achieve the effect of meeting the needs of the entire vehicle.

Active Publication Date: 2018-02-27
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An important indicator to measure the reliability of the drive shaft is the service life of the drive shaft. However, there is no method for calculating the life of the drive shaft of electric vehicles.

Method used

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  • Calculating method and device for electric-automobile driving-shaft service life
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  • Calculating method and device for electric-automobile driving-shaft service life

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Embodiment Construction

[0021] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote 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, and are intended to explain the present application, and should not be construed as limiting the present application.

[0022] The method and device for calculating the life of a drive shaft of an electric vehicle according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0023] In the existing technology, in the transmission system of electric vehicles, the drive shaft assembly can transmit the power output by the gearbox to the wheels, so it is a very important part of the transmission system, and an important indicator to measure the reliability of the drive shaft is the drive ...

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Abstract

The invention provides a calculating method and device for the electric-automobile driving-shaft service life. The calculating method includes the steps that according to the set angle of a driving shaft in an electric automobile, the angle index of the driving shaft is determined; according to correction factors of a predetermined cardan joint of the driving shaft at the different automobile speeds, theory torque at the different automobile speeds of the driving shaft is calculated; according to the theory torque of the cardan joint of the driving shaft at the different automobile speeds, therated torque and the angle index of the driving shaft, the service life of the driving shaft is determined. In this way, calculation of the service life of the electric-automobile driving shaft is achieved, design consideration is provided for new-product design, and it is guaranteed that the designed service life of the driving shaft meets the using requirements of a whole automobile.

Description

technical field [0001] The present application relates to the field of new energy technology, in particular to a method and device for calculating the life of an electric vehicle drive shaft. Background technique [0002] With the development of the economy and the further aggravation of environmental and energy issues, people's awareness of environmental protection has gradually increased. Electric vehicles are driven by electricity and have the advantage of zero emission, so they are gradually favored by people. [0003] In the electric vehicle transmission system, the drive shaft assembly can transmit the power output by the gearbox to the wheels, so it is a very important part of the transmission system. An important index to measure the reliability of the drive shaft is the service life of the drive shaft. However, there is no method for calculating the life of the drive shaft of electric vehicles at present. Contents of the invention [0004] This application aims ...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06F17/18
CPCG06F17/18G06F30/15G06F2119/04
Inventor 王庚川
Owner BEIJING ELECTRIC VEHICLE
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