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Method for determining whole vehicle resistance and motor braking performance of off-road vehicle

An off-highway vehicle, resistance technology, applied in the field of determining the motor braking performance of off-highway vehicles, can solve problems such as burnout

Active Publication Date: 2020-10-30
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mechanical brakes cannot be applied under high-speed vehicle conditions, which may easily cause burnout

Method used

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  • Method for determining whole vehicle resistance and motor braking performance of off-road vehicle
  • Method for determining whole vehicle resistance and motor braking performance of off-road vehicle
  • Method for determining whole vehicle resistance and motor braking performance of off-road vehicle

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Embodiment Construction

[0043] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0044] Also, in the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without the specific details or in the particular manner described.

[0045] In addition, the steps shown in the flow dia...

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Abstract

The invention discloses a method for determining the whole vehicle resistance of an off-road vehicle. The method comprises the steps that 1, the driving working condition of the off-road vehicle to beanalyzed is obtained; 2, effective resistance in rolling resistance, air resistance and slope resistance of the off-road vehicle to be analyzed is obtained based on the driving working condition; and3, the whole vehicle resistance under the driving working condition is determined according to the obtained effective resistance. According to the method, the resistance model of the whole vehicle under the conditions of a flat road and different slopes and the evaluation method are established, the resistance model of the whole vehicle can be accurately evaluated, and then the braking power requirement of the electric driving system of the vehicle under the maximum braking speed of a mine is evaluated according to the resistance of the whole vehicle under the downhill running working condition. The method can effectively solve the problem of inaccurate selection of the braking power of the electric driving system of the mining vehicle, so that the frequent use of mechanical braking of the whole vehicle can be avoided, and the burnout of the mechanical braking of the whole vehicle and even the safety risk of the whole vehicle are reduced.

Description

technical field [0001] The invention relates to the technical field of vehicle braking, in particular to a method for determining the vehicle resistance of an off-road vehicle and a method for determining the braking performance of a motor of an off-road vehicle. Background technique [0002] Off-highway vehicles are the main means of transportation in large open-pit mines, and traction electric drive systems are the core components of off-highway vehicles. However, the operating environment of off-highway vehicles is harsh and the road conditions are complex and changeable. Currently, the traction system of off-highway vehicles is driven by an AC drive system, which is a typical AC drive system for diesel locomotives. The AC drive system will drive the shaft-connected generator through the diesel engine to provide vehicle power energy, and drive the motor through the traction inverter. [0003] Off-highway mining vehicles have three sets of braking systems, namely electric...

Claims

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Application Information

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IPC IPC(8): B60W40/00B60W40/06B60W40/076B60W40/10B60W40/13
CPCB60W40/00B60W40/06B60W40/076B60W40/1005B60W40/13
Inventor 刘辉荣周志宇邱欣胡家喜蓝德劭梁金成刘猛张文进俞鹏程黄彩波
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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