Metal belt-type stepless transmission target clamping force calculation method based on reserved clamping force

A continuously variable transmission, metal belt technology, applied in the direction of elements with teeth, belts/chains/gears, mechanical equipment, etc., can solve the problems of difficult testing and not the only clamping force

Active Publication Date: 2018-08-03
JILIN UNIV
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method of using the dynamic safety factor following the torque and the torque change rate can ensure the safe transmission of torque and improve the efficiency of torque transmission; but there are some disadvantages, because the clamping force ratio (KPKS) is related to the speed, torque, torque ratio, and speed ratio. Related, when the speed ratio and torque remain constant, the clamping force of the driving and driven pulleys is not unique, and the test is more difficult

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Metal belt-type stepless transmission target clamping force calculation method based on reserved clamping force
  • Metal belt-type stepless transmission target clamping force calculation method based on reserved clamping force
  • Metal belt-type stepless transmission target clamping force calculation method based on reserved clamping force

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0064] The invention provides a target clamping force calculation method, and the calculation method of the invention is applied to a metal belt type continuously variable transmission device.

[0065] In the theoretical calculation process, under the premise of ensuring the safe transmission of torque, the required minimum clamping force is shown in formula (1).

[0066]

[0067] In the formula, F is the target clamping force of the pulley; T is the torque transmitted by the pulley; α is the half cone angle of the pulley; μ is the friction coefficient between the pulley and the metal belt; R is the working radius of the pulley.

[0068] Considering the anti-drag condition, the torque values ​​in all the formulas in this paper are the absolute values ​​of the torque.

[0...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a metal belt-type stepless transmission target clamping force calculation method based on reserved clamping force. The method comprises the steps that according to formulas, the minimum target clamping force F<pri> of a driving belt wheel and the minimum target clamping force F<sec> of a driven belt wheel are calculated; and then according to the current target speed ratioand the corresponding clamping force ratio, the driven belt wheel target clamping force F<sec_KPKS> corresponding to the driving belt wheel and the driving belt wheel target clamping force F<pri_KPKS>corresponding to the driven belt wheel are calculated.

Description

technical field [0001] The invention relates to the field of transmission control, in particular to a method for calculating the target clamping force of a metal belt type continuously variable transmission based on reserved clamping force. Background technique [0002] The invention relates to the technical field of transmission control, in particular to a clamping force control strategy of a metal belt continuously variable transmission, which can be applied to a transmission equipped with a metal belt continuously variable transmission. As an ideal transmission for automobiles, continuously variable transmissions are increasingly favored by OEMs under the dual pressures of energy and environment. Metal belt CVT is the most mature CVT, its core technology is clamping force control and speed ratio control. The magnitude of the clamping force will directly affect the friction and torque transmission between the pulley and the metal belt; if the clamping force is too large, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/02F16H59/16F16H59/70F16H59/38
CPCF16H59/16F16H59/38F16H59/70F16H61/02F16H2059/704
Inventor 雷雨龙王林波张英刘科付尧张煜晨
Owner JILIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap