Gear shifting method and device of AMT gearbox, storage medium and terminal
A gear shifting method and gearbox technology, which are applied in transmission control, elements with teeth, belts/chains/gears, etc., can solve problems such as failure of shifting, affecting the success rate of shifting, and reducing shifting force. , to achieve the effect of increasing the shifting force, shortening the shifting time, and improving the success rate of shifting
Active Publication Date: 2022-03-11
WEICHAI POWER CO LTD +1
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Problems solved by technology
[0003] In the prior art, when the AMT gearshift actuator is selecting and shifting, the control to the middle position of the selection and shifting is generally performed by directly opening the two valves for back-to-air operation. However, due to problems such as the accuracy of the engine torque, there are The failure of disengagement is caused by the area of the force-bearing end controlled by the solenoid valves on both sides. The opening of the solenoid valve on the opposite side offsets a large force, resulting in a smaller disengagement force and affecting the success rate of disengagement.
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[0051] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them.
[0052] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0053] When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.
[0054] In the descriptio...
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The invention discloses a gear shifting method and device of an AMT gearbox, a storage medium and a terminal.The method comprises the steps that a to-be-shifted target gear is determined, and an electromagnetic valve of the target gear and an electromagnetic valve of a current gear are opened after countdown of preset gear taking-off duration is finished; whether the AMT gear shifting executing mechanism is clamped or not is judged; when the AMT gear shifting executing mechanism is clamped, the electromagnetic valve of the current gear is closed, and the electromagnetic valve of the target gear is kept in an open state; first displacement of a gear shifting finger in the AMT gear shifting executing mechanism is obtained in real time, and the current gear is controlled to be disengaged based on the first displacement; and the rotating speed of the engine is adjusted, and the gear of the AMT gearbox is engaged to the target gear. Due to the fact that when the AMT gear shifting executing mechanism is clamped and lagged, one electromagnetic valve is firstly closed, the other electromagnetic valve is kept in the open state, compared with two valves which are opened at the same time, the off-gear force is greatly increased through closing of the single valve, the off-gear time is shortened, and the gear shifting success rate is increased.
Description
technical field [0001] The invention relates to the technical field of automobile control, in particular to a gear shifting method, device, storage medium and terminal of an AMT gearbox. Background technique [0002] Electromechanical automatic transmission (AMT) is an electromechanical-hydraulic integrated automatic transmission that combines the advantages of AT (automatic) transmission and MT (manual) transmission. AMT not only has the advantages of automatic transmission of hydraulic automatic transmission, but also retains the original The manual transmission gear transmission has the advantages of high efficiency, low cost, simple structure and easy manufacture. [0003] In the prior art, when the AMT gearshift actuator is selecting and shifting, the control to the middle position of the selection and shifting is generally performed by directly opening the two valves for back-to-air operation. However, due to problems such as the accuracy of the engine torque, there ar...
Claims
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IPC IPC(8): F16H59/02F16H59/10F16H61/04F16H61/12F16H61/30F16H63/02F16H63/30
CPCF16H59/0204F16H59/105F16H61/04F16H61/12F16H61/30F16H63/02F16H63/304F16H2061/0459F16H2061/1224F16H2061/1232
Inventor 赵国强桂经良郭宝祥高国华乔运乾
Owner WEICHAI POWER CO LTD