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Wheel loader, control method of wheel loader and control system of wheel loader

A wheel loader and controller technology, which is applied to the control device, transmission control, earth mover/shovel, etc., can solve the problems of insufficient distance and the possibility of the wheel loader reaching the front of the dump truck, etc. To achieve the effect of improving work efficiency

Active Publication Date: 2020-02-07
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, control method of wheel loader and control system of wheel loader
  • Wheel loader, control method of wheel loader and control system of wheel loader
  • Wheel loader, control method of wheel loader and control system of wheel loader

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Embodiment Construction

[0025] 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.

[0026] 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.

[0027]

[0028] 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 .

[0029] 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 forward clutch, an accelerator pedal, a brake pedal, and a hydraulic pressure controller that controls hydraulic fluid supplied to the forward clutch. The controller executes clutch hydraulic pressure control for reducing the hydraulic pressure of hydraulic oil supplied to the forward clutch according to the operation amount of the brake pedal on the condition that the brake pedal is operated at least while the accelerator pedal is operated. The controller also continues the clutch hydraulic pressure control after the clutch transitions from the fully engaged state to the half engaged state through the clutch hydraulic pressure control.

Description

technical field [0001] The invention relates to a wheel loader, a control method of the wheel loader and a control system of 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 moves forward while performing boom raising. 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D48/02E02F9/22F16H61/00F16H61/68
CPCE02F9/22F16H61/00F16H61/68F16D48/02B60W30/186B60W10/02B60W2300/17B60W2510/182B60W2540/10B60W2540/12B60W2710/02B60W2710/021B60W2520/10B60W2510/30B60W2510/0241B60W2510/0216B60W2510/0208B60W2050/0088B60W2050/0026B60W2710/023B60W2552/15B60Y2200/415E02F9/2203E02F9/2246
Inventor 榎本良太碇政典矢岛贤太郎西村卓马
Owner KOMATSU LTD