Electric control mechanical automatic gearbox gear selecting oil cylinder for automobile

An automatic transmission, mechanical technology, applied in the direction of mechanical equipment, transmission device parts, transmission device control, etc., can solve the problems of mechanical transmissions such as large changes, poor connection performance, mechanical wear, etc., to overcome rigid connection defects and improve sensitivity Sexuality and flexibility, the effect of reducing mechanical resistance

Active Publication Date: 2007-06-27
WUHU WANLIYANG TRANSMISSION CO LTD
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AI Technical Summary

Problems solved by technology

The reliability of motor control is poor, and its control mechanism has changed a lot from the mechanical transmission. It is necessary to integrate the gear selection shaft, gear selection parts and other components into the gear shift control mechanism
The hydraulic control structure is complex and there are many control elements
The gear shifting method adopted by the hydraulic control is mostly a bolt connection method, the connection performance is poor, and the strength cannot be guaranteed
At the same time, the mechanical wear of the bolted connection is very serious, which can easily lead to the failure of the entire mechanism
Chinese Patent No. CN01140543.0 patent specification discloses a technology of oil cylinder for gear shifting module, which has progressed and innovated in technology, but still fails to completely overcome the above defects

Method used

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  • Electric control mechanical automatic gearbox gear selecting oil cylinder for automobile

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Embodiment Construction

[0018] As shown in the structure of the present invention as shown in Figure 1, the present invention is a gear selection oil cylinder of an automotive electronically controlled mechanical automatic transmission, which is connected with the gearshift mechanism of the speed changer, and the gearshift mechanism is provided with a shifting finger 21 and a gearshift mechanism of the speed changer. The gear shaft is fastened, and the gear selection oil cylinder includes a coaxial oil cylinder block 2, a piston 23 and a piston rod 1 at both ends. Two oil inlet and outlet holes 17, 18 are set on the oil cylinder body 2, and the hydraulic oil passes through the electromagnetic The control of the valve enters the oil inlet and outlet holes 17 and 18 respectively, and pushes the piston 23 to make a reciprocating linear motion. The gear selection method when generally known speed changer gear selection is that the connection of piston and shift shaft adopts bolted connection. As stated a...

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Abstract

A gearshift cylinder for the electrically controlled mechanical automatic speed variator of car features that its cylinder body has a closed end with a through hole for piston rod, the extended head of piston rod is linked with the gearshift finger in plug-in mode, and its hydraulic unit is sealed by piston, cylinder body, intermediate bushing, sealing ring and sealing pad.

Description

technical field [0001] The present invention relates to an automobile transmission system, more specifically, the present invention relates to a gear selection oil cylinder of an electric-controlled mechanical automatic transmission of an automobile. Background technique [0002] At present, the control methods of electronically controlled mechanical automatic transmissions of automobiles are all controlled by electric motor or hydraulic pressure. The reliability of motor control is poor, and its control mechanism has changed a lot from the mechanical transmission. It is necessary to integrate the gear selection shaft, gear selection parts and other components into the gear shift control mechanism. The hydraulic control structure is complex and there are many control elements. The gear shifting method adopted by the hydraulic control is mostly a bolt connection method, the connection performance is poor, and the strength cannot be guaranteed. At the same time, the mechanic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/00F16H59/04F15B15/02
Inventor 杨加丰郑勇廉星慧
Owner WUHU WANLIYANG TRANSMISSION CO LTD
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