Rotation speed control method and device of full-hydraulic bulldozer
A technology of speed control and bulldozers, which is applied to earth movers/shovels, mechanically driven excavators/dredgers, construction, etc., can solve the problem of high fuel consumption, achieve the effect of reducing fuel consumption and quickly responding to loads
Active Publication Date: 2020-05-19
WEICHAI POWER CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to at least solve the existing problem of high fuel consumption in the current constant speed control mode during the application process of the full-range speed regulation function
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[0036] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0037] It should be understood that terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may also be meant to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated fea...
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The invention belongs to the technical field of full-hydraulic bulldozers and particularly relates to a rotation speed control method and device of a full-hydraulic bulldozer. The rotation speed control method of the full-hydraulic bulldozer includes the following steps that the current torque of an engine is obtained; the engine is controlled to run in a first rotation speed area along a set slope in a speed-down mode when the current torque of the engine is no larger than a first preset value, the working displacement of a hydraulic pump is controlled to increase, and the working displacement of a hydraulic motor is controlled to decrease; and the engine is controlled to run in a second rotation speed area in a speed-down mode when the current torque of the engine is larger than the first preset value, the working displacement of the hydraulic pump is controlled to increase, and the working displacement of the hydraulic motor is controlled to decrease. In the rotation speed control method of the full-hydraulic bulldozer, the speed-down strategy is added, the working displacement of the hydraulic pump is controlled to increase, the working displacement of the hydraulic motor is controlled to decrease, and the purposes of fast response to loads and reduction of oil consumption are achieved.
Description
technical field [0001] The invention belongs to the technical field of full hydraulic bulldozers, and in particular relates to a speed control method and a speed control device of a full hydraulic bulldozer. Background technique [0002] The full hydraulic bulldozer has a hydraulic controller, and the hydraulic controller controls the engine operation through the CAN throttle. At present, our CAN throttle adopts full-range speed control. During the application of the full-range speed control function, we found that the current constant speed control mode has high fuel consumption. Contents of the invention [0003] The purpose of the present invention is to at least solve the existing problem of relatively high fuel consumption in the current constant speed control mode during the application of the full range speed regulation function. This purpose is achieved through the following technical solutions: [0004] A first aspect of the present invention proposes a method f...
Claims
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Login to View More IPC IPC(8): E02F3/84E02F9/22
CPCE02F3/84E02F9/2246
Inventor 张长城付朋贾帅帅李琦綦宗岩刘鹏波孙德亮胡洪昌
Owner WEICHAI POWER CO LTD