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Automatic double-power curve selection method of land leveller

A power curve and dual power technology, which is applied in the direction of machines/engines, mechanically driven excavators/dredgers, mechanical equipment, etc., can solve problems such as dependence on control devices, and achieve the effect of optimizing the system structure and saving costs

Active Publication Date: 2019-03-01
GUANGXI LIUGONG MASCH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide an automatic dual power curve selection method for graders, which aims to solve the problems of power curve selection and dependence on control devices in the prior art

Method used

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  • Automatic double-power curve selection method of land leveller
  • Automatic double-power curve selection method of land leveller
  • Automatic double-power curve selection method of land leveller

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] In the embodiment of the present invention, a method for automatic dual power curve selection of a motor grader is provided, such as figure 1 , figure 2 shown, including steps:

[0024] 101. Set the state of the power curve; the state of the power curve is divided into power mode, energy-saving mode, and automatic mode; use a power selection switch to set the state of the power curve, and the power selection switch can be a double-pole three-throw switch. The state of the power selection switch corresponds to the power mode, the energy saving mode and the automatic mode respe...

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Abstract

The invention provides an automatic double-power curve selection method of a land leveller. The automatic double-power curve selection method includes the steps that the state of a power curve is set,the state of the power curve is divided into a power mode, an energy-saving mode and an automatic mode; when the state of the power curve is in the power mode, an engine power selection signal is setto be in a suspended state; when the state of the power curve is in the energy-saving mode, an engine power selection signal is set to be of the high level; and when the state of the power curve is in the automatic mode, an engine gear signal is subjected to logic controlled treatment, and an engine power selection signal is set according to a treatment result. By means of the automatic double-power curve selection method, power curve selection in the automatic mode and the manual mode can be completed by means of logic operation and cooperation of the states of the power curve, the automaticdouble-power curve selection method does not need to depend on a controller, the system structure is optimized, and the cost is saved.

Description

technical field [0001] The invention relates to a power selection method of engineering machinery, in particular to an automatic dual power curve selection method of a motor grader. Background technique [0002] At present, the power selection circuit of the grader is implemented with a switch. After pressing the switch, a 24V voltage signal is input to the input terminal of the engine ECM power curve selection signal, and the engine enters the energy-saving power curve operation state. Turn off the switch, the engine ECM power curve selection signal input terminal is suspended, and the engine is in the power curve. It is necessary to manually select the energy-saving power state, and the fuel-saving advantages of the energy-saving power curve cannot be fully utilized in time. Forgetting to turn off the switch will also cause the motor grader to lack power when high power is required, and the engine power curve cannot be automatically switched according to the gear position....

Claims

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Application Information

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IPC IPC(8): F02D29/00E02F3/84E02F9/20
CPCE02F3/84E02F9/2066F02D29/00
Inventor 陆春海覃后嘉钟荣康
Owner GUANGXI LIUGONG MASCH CO LTD
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