Bulldozer electric control gear shifting method
A bulldozer and electric control technology, which is applied to the control of earth movers/shovels, mechanical equipment, transmission devices, etc., can solve the problems of large load changes and complex working conditions of construction machinery, so as to reduce fluctuations and increase large loads. The effect of reliability and shift stability
Active Publication Date: 2020-12-01
SHANTUI CONSTR MASCH CO LTD
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Problems solved by technology
However, in actual use, the working conditions of construction machinery are complex, and the load changes greatly. The reasonable shifting method should change with the working conditions.
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[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0037] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two ...
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The invention belongs to the field of electronic control gear shifting, and discloses an electronic control gear shifting method of a bulldozer. The method includes the steps that gear shifting information and current load information of an engine are acquired, wherein the load information comprises large loads, medium loads and small loads; a corresponding speed gear gear shifting curve is determined according to the gear shifting information and the load information; and currents of a speed gear electromagnetic valve and pressure of a speed gear clutch are adjusted according to the speed gear gear shifting curve. According to the method, corresponding speed gear gear shifting curves can be automatically determined according to different pieces of load information and gear shifting information, then gear shifting actions corresponding to the speed gear gear shifting curves are executed, and the method can meet the gear shifting requirements in environments with complex working conditions and large load change.
Description
technical field [0001] The invention relates to the field of electronically controlled shifting, in particular to an electronically controlled shifting method for a bulldozer. Background technique [0002] The shifting control modes of the existing bulldozer gearbox mainly include mechanical manipulation control, hydraulic control and electronic control. Among them, the electronically controlled shifting method (abbreviated as electronically controlled shifting) is favored because of its precise control and small control force. With the continuous improvement of users' requirements for electronic control of construction machinery and equipment, as well as the continuous improvement of technologies such as cleanliness, machining accuracy, and reliability of solenoid valves, electronically controlled shifting technology has become the mainstream shifting development direction of bulldozers and other construction machinery industries. [0003] The key to the electronically con...
Claims
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IPC IPC(8): F16H61/04F16H59/74E02F9/20E02F9/22
CPCE02F9/2062E02F9/2079E02F9/2246F16H59/74F16H61/0437F16H2061/0459
Inventor 张亮林嘉栋杨和平刘静秦贞沛姜友山赵建军韩峰季春霞吕浩刘旭刘存波张圆圆
Owner SHANTUI CONSTR MASCH CO LTD