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Dual mode control device and control method thereof for wheel type engineering machinery traveling system

A technology of driving and control devices for construction machinery, applied in the field of dual-mode control devices, can solve the problems of high labor intensity for drivers and difficulty in improving work production efficiency, so as to save engine power waste, improve operation accuracy and control precision, and improve work efficiency. efficiency effect

Active Publication Date: 2014-04-23
TIANJIN ENG MACHINERY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the traditional motor grader has as many as 10 operating handles including shovel blades and other working devices, and the driver must operate at any time during the operation. In this way, the driver’s labor intensity is high due to the shifting of driving speed; The physical limit is difficult to improve; the quality of its level ground largely depends on the experience of the driver, so the leveling operation also depends on the driver's technical proficiency

Method used

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  • Dual mode control device and control method thereof for wheel type engineering machinery traveling system
  • Dual mode control device and control method thereof for wheel type engineering machinery traveling system
  • Dual mode control device and control method thereof for wheel type engineering machinery traveling system

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Embodiment Construction

[0043] In order to further understand the content of the invention, features and effects of the present invention, the following embodiments are exemplified and described in detail with the accompanying drawings as follows:

[0044] Since this patent is common to wheeled construction machinery that forms a travel transmission system such as hydraulic drive, hydraulic drive, or power gearbox, this specific embodiment takes a hydraulically driven motor grader as an example for patent description.

[0045] see figure 1 , a dual-mode control device for a wheeled construction machinery driving system, the wheeled construction machinery driving system includes: a front axle 1, a front wheel 2, a front axle motor 3, an engine 4, a hydraulic pipeline 5, a hydraulic valve 6, Hydraulic valve solenoid valve 7, rear axle motor 8, drive wheel 9, rear axle 10, gearbox 11, balance box 12, shift solenoid valve 13, rear axle motor solenoid valve 15, travel pump 16, travel pump solenoid valve 1...

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Abstract

The invention discloses a dual mode control device and a control method thereof for a wheel type engineering machinery traveling system. The dual mode control device comprises an engine speed sensor installed on an output shaft of an engine, a vehicle speed sensor installed on an output shaft of a rear axle motor, an accelerator controller connected with an accelerator executor, a travelling controller connected with the accelerator controller, and a shifting hand shank, a control mode switch and an accelerator connected with the travelling controller, wherein a signal input terminal of the travelling controller is respectively connected with the engine speed sensor and the vehicle speed sensor in electric mode. The dual mode control device and the control method thereof for the wheel type engineering machinery traveling system both have a manual control mode and an automatic control mode, wherein the automatic control mode can greatly reduce operation labor intensity of a driver.

Description

technical field [0001] The invention belongs to the technical field of wheeled construction machinery, and in particular relates to a dual-mode control device for a wheeled construction machinery traveling system and a control method thereof. Background technique [0002] Traditional wheeled construction machinery such as graders and loaders have to complete various operations during the driving process. The driver must operate the work equipment at the same time, and must also pay attention to the driving road conditions and shift gears at any time, causing the driver to be highly nervous. On the one hand, the driver pays attention to the lack of energy of the operation device, which is not conducive to improving the quality and efficiency of the operation. Therefore, how to simplify the driver's operation and make the operating system simpler, more user-friendly and even more comfortable is one of the development directions of construction machinery. [0003] Most of the ...

Claims

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Application Information

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IPC IPC(8): B60W30/00B60W10/02B60W10/06B60W10/10
CPCB60W10/02B60W10/06B60W10/10B60W30/182B60W2510/0638B60W2520/10
Inventor 吴国祥李玉河邵善锋吴晓健刘家亮
Owner TIANJIN ENG MACHINERY INST
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