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Continuously variable transmissions systems and methods

一种无级变速器、行星的技术，应用在传动装置、带有齿的元件、摩擦传动装置等方向，能够解决CVT增加寄生损耗、系统增加成本和复杂性等问题

Active Publication Date: 2019-01-04
FALLBROOK INTPROP COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A common problem with single-chamber toroidal CVTs is that force changes require a robust and dynamic axial force generation system
In addition to adding cost and complexity to the system, these axial force generating systems add additional parasitic losses to the CVT

Method used

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  • Continuously variable transmissions systems and methods
  • Continuously variable transmissions systems and methods
  • Continuously variable transmissions systems and methods

Examples

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Embodiment Construction

[0029] Embodiments are now described with reference to the drawings, wherein like numerals refer to like elements throughout. The terminology used in the following description should not be construed simply in any restrictive or restrictive manner, as it is used in connection with the detailed description of certain specific embodiments. Furthermore, these embodiments may include several inventive features, no single one of which is solely responsible for its desirable attributes or that is essential to implementing the systems and methods described herein.

[0030] As used herein, the terms "operably connected", "operably coupled", "operably linked", "operably connected", "operably coupled", "operably linked", "related Contact" and similar terms mean a relationship (mechanical, linkage, coupling, etc.) between elements in which the operation of one element causes the corresponding, subsequent, or simultaneous operation of a second element or actuate. It should be noted that...

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PUM

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Abstract

Components, subassemblies, systems, and / or methods for improving the performance and increasing the life of continuously variable transmissions (CVT). A first stator may be formed with an outer diameter greater than an outer diameter of a second stator. A stator may have radial slots formed to extend farther radially inward than slots on the other stator. The larger outer diameter of a stator or the formation of guide slots on a first stator extending farther radially inward of guide slots on a second stator may prevent egress of a planet axle from a radial slot, increase range of the CVT, allow for larger tolerances to reduce losses, and other advantages, Slots on a timing plate may be formed having a width greater than a width of guide slots formed on either stator to allow the stators to control adjustments while the timing plate avoids runaway axles. The shape, including junction between surfaces on a timing plate or stator may also prevent an axle from egressing. Any one or a combination of these features allow a CVT to be formed smaller and lighter to allow for clearance in smaller environments and for reduced inertia.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 62 / 310,559, filed March 18, 2016, which is hereby incorporated by reference in its entirety. [0003] background technical field [0004] Embodiments disclosed herein relate generally to continuously variable transmissions, and more particularly to methods, assemblies, and components for continuously variable transmissions (CVTs). Background technique [0005] Continuously variable transmissions have become more popular as people understand the benefits and advantages of having a continuous range of gear ratios rather than a finite set. There are several well known methods to achieve a continuously variable ratio of input speed to output speed. Generally, a mechanism for adjusting the speed ratio of output speed to input speed in a CVT is called a variator, and a control system manages the variator so that a desired speed ratio can be achieved in oper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H15/28
CPCF16H15/28F16H61/6646F16H15/503F16H61/664
Inventor J·M·尼科尔斯B·B·斯威特B·P·波尔F·A·托马西W·J·埃利奥特D·高尔文D·J·道D·B·杰克逊W·L·康特略
Owner FALLBROOK INTPROP COMPANY