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Work machine transmission control device

A control device and speed change device technology, which is applied in the direction of transmission control, mechanical equipment, and components with teeth, etc., can solve problems such as troublesome operations, inability to confirm, and time-consuming problems, and achieve the goal of improving operating efficiency and easy setting of operations Effect

Inactive Publication Date: 2012-12-26
NIHON KENKI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In addition, even if the user can adjust the setting by inputting a value, it is impossible to confirm whether the input value is suitable for the slope of the work site unless the value is actually driven on the slope. Therefore, trial and error is required to make the operation easier. extremely troublesome and time consuming

Method used

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  • Work machine transmission control device
  • Work machine transmission control device
  • Work machine transmission control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0105] Hereinafter, embodiments of the present invention will be described using the drawings.

[0106] figure 1 It is a figure showing the appearance of a wheel loader (work machine) to which the present invention is applied. exist figure 1 Among them, the wheel loader 100 is composed of a front body 101 and a rear body 102, and the front body 101 and the rear body 102 are relatively rotatably connected so that the steering cylinder 103 can change the position of the front body 101 relative to the rear body. 102 orientation. A front working device 104 is provided on the vehicle body front portion 101 , a driver's seat 106 is provided on the vehicle body rear portion 102 , and operating mechanisms such as an operating lever 107 and a steering wheel 108 are provided on the driver's seat 106 .

[0107] The front working device 104 has a bucket (working tool) 111 and a boom 112 , the bucket 111 is tilted and dumped by the expansion and contraction of the bucket cylinder 113 ...

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PUM

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Abstract

The present invention provides a work machine gear shifting control system that provides enhanced work efficiency by making it easy to freely set up desired gear shifting conditions for an automatic gear shifting mode in accordance with work site conditions. While a wheel loader travels, an area 62 of a display device 49 displays a permissible velocity setting range and a setup operation guidance, and another area 64 shows a guidance to indicate whether the setting is acceptable (OK) or unacceptable (NG). When the traveling velocity falls within the permissible velocity setting range, the displayed guidance changes to indicate that the setting is acceptable. When, in this instance, an operator presses a setup switch 23 with desired timing, a transmission gear shifting control section 45 acquires the prevailing vehicle velocity and velocity ratio (or vehicle velocity), and stores adjustment values in an adjustment value storage section 43 so that the vehicle velocity and velocity ratio become the gear shifting control threshold values for normal gear shifting control (steps S535 to S545).

Description

technical field [0001] The present invention relates to a speed change control device for a work machine having a speed change device such as a wheel loader, and more particularly to a speed change control device for a work machine having an automatic speed change mechanism that switches the speed change device when a value such as a vehicle speed exceeds a threshold value the speed file to make it change gears. Background technique [0002] A work machine such as a wheel loader generally travels by transmitting power from an engine to wheels via a torque converter and a transmission. The speed change device has a plurality of speed stages, and the speed is changed by switching the speed stages. The switching of the speed stage of the speed change device is performed by the speed change control device. There are a manual shift mode and an automatic shift mode for switching the speed stage, and the automatic shift mode generally has a plurality of modes, and the shift condi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/10F16H59/02F16H59/44F16H59/46F16H61/682F16H63/42
CPCF16H61/0213E02F9/26F16H2061/0087F16H2061/0225F16H2061/0234E02F9/2253F16H59/44E02F9/2025Y10T74/19251F16H59/02F16H59/46F16H61/00F16H61/10
Inventor 束田英信中村和则古渡阳一吉川正规
Owner NIHON KENKI CO LTD