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Wheel-chassis construction machinery and automobile power-take-off control system thereof

A technology of construction machinery and control systems, applied in the direction of control devices, vehicle components, auxiliary drive devices, etc., can solve problems such as poor operability, damage to the transfer case, and inability to adapt to automatic control, and achieve the effect of avoiding damage to equipment

Active Publication Date: 2011-05-25
XUZHOU XCMG CONSTR MACHINERY CO LTD BUILDING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, the operability of the existing transfer case power take-off technology is poor. On the one hand, there are unsafe hidden dangers of damage to the transfer case due to misoperation. In addition, there are also defects that cannot adapt to the development of automatic control.

Method used

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  • Wheel-chassis construction machinery and automobile power-take-off control system thereof
  • Wheel-chassis construction machinery and automobile power-take-off control system thereof
  • Wheel-chassis construction machinery and automobile power-take-off control system thereof

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Embodiment Construction

[0030] As introduced in the background technology, construction machinery such as concrete delivery pump trucks are refitted by adding corresponding boarding devices to the chassis of general automobiles, and the output power of the chassis engine is taken out through the transfer case to drive the boarding devices to work , which is called "PTO working mode" in the industry.

[0031] As we all know, different car chassis have different diesel engine speeds and transmission ratios of gearboxes. Therefore, refitting manufacturers must first drive the transfer case reasonably and safely to meet the requirements of taking power from the chassis engine. In order to ensure that the transfer case will not be damaged due to detaching of teeth, at the same time, it is necessary to reasonably control the engine speed according to the different working conditions of the boarding device, so as to realize the different power output of the engine under different working conditions, which is...

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Abstract

The invention discloses an automobile power-take-off control system of a wheel-chassis construction machinery, which comprises an engine control unit, an automobile control unit, an acquisition device, an operating device and a transfer case power-take-off device, wherein the output rotating speed signals are obtained from a gear box in real time by the acquisition device; corresponding power-take-off signals are output by the operating device according to a power-take-off mode option switch; the current gear position of the gear box is determined by the automobile control unit in accordance with the engine rotating speed signals and the output rotating speed signals of the gear box; corresponding effective-power-take-off control signals are output according to the matching relationship between manual braking and neutral signals as well as between the power-take-off signals and the current gear position; and the transfer case power-take-off device is switched according to corresponding power-take-off signals and the effective power-take-off control signals. The system disclosed by the invention provides a plurality of power-take-off working modes, and maximally adopts engine powerand protects the engine from overloading. On the basis, the system provided by the invention also provides the wheel-chassis construction machinery with the power-take-off control system.

Description

technical field [0001] The invention relates to a wheeled chassis construction machine, in particular to a wheeled chassis construction machine and a power take-off control system for boarding the vehicle. Background technique [0002] In today's engineering construction, all kinds of construction machinery play an important role, especially the construction machinery using automobile chassis, because of its outstanding advantages in mobility, it is widely used. Taking concrete construction equipment as an example, with the rapid development of commercial concrete demand, concrete mixer trucks, concrete delivery pump trucks, etc. are used as ready-mixed concrete distributing equipment, with their advantages of wide operating range, convenient transfer, and small occupation of the work site. , It is increasingly selected by the construction industry. [0003] Most of the automobile chassis engineering machinery including the above-mentioned concrete pump truck is composed of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K25/00B60W10/04B60W10/10B60W10/30B60W30/00
Inventor 徐怀玉齐行森沈千里马传杰王旭
Owner XUZHOU XCMG CONSTR MACHINERY CO LTD BUILDING MACHINERY
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