System and method for controlling running speed of electric wheel operation vehicle

A technology of vehicle driving speed and driving speed, applied in control/regulation systems, electric vehicles, control driving, etc., can solve the problems of unstable vehicle speed control, control lag, etc., and achieve the effect of reducing operating pressure and reducing manual operation intervention.

Active Publication Date: 2015-02-18
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the technical problems solved by the present invention is that the electric braking method of the electric wheel dump truck is likely to cause unstable speed control and control lag

Method used

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  • System and method for controlling running speed of electric wheel operation vehicle
  • System and method for controlling running speed of electric wheel operation vehicle
  • System and method for controlling running speed of electric wheel operation vehicle

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Embodiment Construction

[0051] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0052] Combine below figure 1 with figure 2 A rear-wheel-drive electric-wheel work vehicle will be described as an example.

[0053] The electric wheel work vehicle 100 includes a body 1, a front wheel 2 and a rear wheel 3. The front wheel 2 is provided at the front of the vehicle body 1 as a steering wheel that provides a steering function. The rear wheel 3 is provided at the rear of the vehicle body 1 as a driving wheel that provides driving and braking functions.

[0054] The engine 11 is installed inside the vehicle body 1, and a large diesel engine can be used. The engine 11 drives the generator 12 to generate three alternating currents (for example, about 1500 kW). The traction converter 13 and the vehicle controller 15 jointly complete the speed control of ...

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Abstract

The invention provides a system and a method for controlling the running speed of an electric wheel operation vehicle. The system comprises a speed setting module, a whole vehicle controller and a traction converter, wherein the speed setting module is used for setting the target speed and the minimum speed threshold value, the whole vehicle controller is connected with a speed sensor arranged at a vehicle body for collecting the practical running speed of the vehicle and is connected with an angle sensor for judging the gradient of the vehicle running road segment, the traction converter is connected with the whole vehicle controller, and is used for converting alternating current output by a generator into driving force to be provided for an electric motor working in a traction mode, or converting the alternating current into braking force to be provided for the electric motor working in a braking mode, and the whole vehicle controller controls the value of the driving force moment or the braking force moment provided for the electric motor in a constant speed control mode according to the practical running speed of the vehicle and the gradient of the vehicle running road segment, so that the vehicle running speed is within the range of the target speed and the minimum speed threshold value.

Description

Technical field [0001] The present invention relates to the technical field of electric-wheel work vehicles, and in particular to a system and method for controlling the driving speed of electric-wheel work vehicles. Background technique [0002] In recent years, as the mining and construction of large-scale open-pit mines has increased, the demand for heavy mining vehicles as the main mining vehicle has grown rapidly. Among them, electric-wheel working vehicles are one of the most important types of mining vehicles. Due to the gradual development of electric-wheeled operating vehicles, their load capacity is increasing, and their operating environment is mostly complex roads with more ramps such as mines, which puts forward higher requirements for vehicle driving safety. [0003] For example, electric wheel dump trucks are used to transport sand and gravel, coal and ore, etc., driving in open-air non-highway areas. The road conditions are mostly sand and gravel roads composed of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/00B60K31/00
Inventor 郜永涛张东方班立权刘松柏鲍睿肖孟英赵军伟
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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