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Speed ratio control device for belt type continuously variable transmission of automobile and motorcycle

A technology of continuously variable transmission and control device, which is applied in the direction of transmission device, transmission device control, components with teeth, etc., can solve the problem of high machining accuracy requirements of hydraulic actuators, uncontrollable speed ratio adjustment accuracy, and hydraulic actuator efficiency. Low problems, to achieve the effect of continuous stepless change, convenient control and high speed ratio adjustment accuracy

Active Publication Date: 2015-02-11
JIANGSU UNIV OF TECH
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Problems solved by technology

However, the efficiency of the hydraulic actuator is low. Research shows that the hydraulic system accounts for about 60% of the power loss of the metal belt continuously variable transmission, while the metal belt friction transmission only accounts for about 30%. At the same time, the hydraulic actuator requires high machining accuracy. This leads to higher cost; while using the torque cam mechanical adjustment method, the change of the speed ratio of the continuously variable transmission is generally accompanied by the change of the engine working condition, that is, the engine cannot be maintained in the optimal working area and only the speed of the continuously variable transmission needs to be adjusted. Ratio to meet the requirements of load changes, speed ratio adjustment accuracy can not be controlled

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  • Speed ratio control device for belt type continuously variable transmission of automobile and motorcycle

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Embodiment Construction

[0012] See figure 1 The speed ratio control device of the belt type continuously variable transmission of the present embodiment includes: a DC motor, a controller for controlling the steering and rotation angle of the output shaft of the DC motor, and a power input shaft 1 connected to the output shaft of the engine when in use. , the driving pulley that is located on the power input shaft 1, the power output shaft 13 that is connected with the vehicle transmission shaft 27 during use, the driven pulley that is located on the power output shaft 13, connects the driving pulley and The V-shaped transmission belt 19 of the driven pulley.

[0013] The driving pulley includes: a driving pulley fixed plate 2 fixed on the power input shaft 1, a driving sleeve 3 arranged on the right side of the driving pulley fixed plate 2 and vacantly sleeved on the power input shaft 1 , the driving pulley moving disc 4 that is empty on the driving shaft sleeve 3, the first device that is ...

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Abstract

The invention discloses a speed ratio control device for a belt type continuously variable transmission of an automobile and a motorcycle. The device comprises a direct current motor and a controller of the direct current motor, two groups of gear transmission mechanisms, two groups of spiral screw mechanisms, two groups of spring booster mechanisms and a plurality of plane bearings and needle bearings. The direct current motor serves as a speed ratio control power source of the transmission and converts motor rotation angles into axial displacement of a belt wheel movable disc of the belt type continuously variable transmission through the two groups of the gear transmission mechanisms and the spiral screw mechanisms connected with the gear transmission mechanisms respectively and under the cooperation of springs, contact radii of a V-shaped transmission belt with drive and driven belt wheel discs are changed, and accordingly, continuous speed ratio variations of the continuously variable transmission in different working conditions is achieved.

Description

[0001] This application is a divisional application, the application number of the original application: 201010538238.1, the application date: November 10, 2010, and the name of the invention: the speed ratio control device of the belt type continuously variable transmission. technical field [0002] The invention belongs to a speed ratio control device of a belt-type continuously variable transmission, which is mainly used for automobiles and motorcycles using the continuously variable transmission, and can also be applied to other occasions that need to transmit power in a belt-type continuously variable transmission. Background technique [0003] The automobile transmission must adapt to the different requirements of the vehicle on the driving wheel traction and vehicle speed under different driving conditions such as starting, accelerating, driving and overcoming various road obstacles. In order to make full use of the power of the engine, improve the fuel economy and im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H59/06F16H9/18F16H61/662F16H37/02
Inventor 张兰春贝绍轶赵景波
Owner JIANGSU UNIV OF TECH
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