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Wheel loader and wheel loader control method

A wheel loader and controller technology, which is applied in loading/unloading, transmission control, earth mover/excavator, etc. It can solve the problems that the wheel loader may reach the front of the dump truck and the distance is not sufficient

Active Publication Date: 2020-10-23
KOMATSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in such a loading operation, if the distance between the wheel loader and the dump truck is not sufficient, the wheel loader may not move the bucket before raising the bucket to a position higher than the cargo box of the dump truck. reach the dump truck

Method used

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  • Wheel loader and wheel loader control method
  • Wheel loader and wheel loader control method
  • Wheel loader and wheel loader control method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0028] Hereinafter, embodiment will be described based on drawings. It is originally intended to use appropriate combinations of the structures in the embodiments. In addition, some constituent elements may not be used.

[0029] Hereinafter, the wheel loader will be described with reference to the drawings. In the following description, "up", "down", "front", "rear", "left", and "right" are terms based on the operator seated in the driver's seat.

[0030]

[0031] figure 1 It is an external view of the wheel loader 1 of the embodiment. Such as figure 1 As shown, the wheel loader 1 includes a vehicle body 102 , a work implement 103 , wheels 104 a and 104 b , and a cab 105 . The wheel loader 1 can run automatically by rotationally driving the wheels 104 a and 104 b , and can perform desired work using the work machine 103 .

[0032] The vehicle body 102 has a front body part 102a and a rear body part 102b. The front body part 102a and the rear body part 102b are connect...

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PUM

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Abstract

The wheel loader includes a boom, a forward clutch, and a controller for controlling the hydraulic pressure of hydraulic oil supplied to the forward clutch. The controller executes clutch hydraulic pressure control for bringing the forward clutch into a semi-engaged state by controlling the hydraulic pressure of hydraulic oil supplied to the forward clutch on the condition that the wheel loader moves forward while raising the boom at least in a loaded state.

Description

technical field [0001] The invention relates to a wheel loader and a control method for the wheel loader. Background technique [0002] A wheel loader, which is a self-propelled work vehicle, includes a travel device for driving the vehicle and a work device for performing various operations such as excavation. The traveling device and the working device are driven by driving force from the engine. [0003] The operator of the wheel loader simultaneously operates the accelerator pedal and the boom lever while loading the soil scooped up by the bucket of the work equipment into the cargo box of the dump truck. As a result, the wheel loader performs boom raising while advancing. In addition, such a loading operation is also called "dumping and approaching operation." [0004] However, in such a loading operation, if the distance between the wheel loader and the dump truck is not sufficient, the wheel loader may not move the bucket before raising the bucket to a position hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/00E02F9/20F16D48/02F16H59/40F16H59/42F16H59/46F16H59/50F16H61/682F16H63/46
CPCF16H59/40F16H59/42F16H59/46F16H59/50F16H63/46F16H61/68B60Y2200/415E02F9/2253F16D48/06E02F3/434E02F3/34F16D2500/1112F16D2500/111F16D2500/3024F16D2500/3108F16D2500/3128F16D2500/70406F16H63/3026B65G67/04E02F3/283E02F3/422E02F3/431E02F9/2004E02F9/24E02F9/26F16D25/00F16D48/02
Inventor 榎本良太碇政典矢岛贤太郎西村卓马
Owner KOMATSU LTD