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Infinitely variable transmission

A continuously variable transmission and infinitely variable technology, which is applied in mechanical equipment, motor vehicles, traction driven by engines, etc.

Active Publication Date: 2014-11-26
D·R·阿尔维斯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Take this small ratio to the limit with the IVT, resulting in a "Neutral" gear limit or a non-driven "Low" gear limit where the output speed is zero

Method used

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  • Infinitely variable transmission
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Embodiment Construction

[0027] It should be understood at the outset that while exemplary embodiments of the teachings of the present disclosure are described below, the teachings of the present disclosure may be implemented using a number of techniques, whether currently known or in existence. The present invention should in no way be limited to the exemplary embodiments, options, drawings and techniques described below, including the exemplary designs and implementations shown and described herein. Additionally, the drawings contained herein are not necessarily drawn to scale.

[0028] refer to figure 1 An infinitely variable mechanical continuously variable transmission according to the teachings of the present disclosure may be implemented in motor vehicle 100 in part by the position of planetary gear set 102 in the driveline of motor vehicle 100 . The planetary gear set 102 can have exactly two input assemblies and one output assembly, and a drive shaft 104 driven by an internal combustion engi...

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Abstract

An exemplary infinitely variable transmission includes a planetary gear set situated in a drive train of an automotive vehicle and interfaced with a worm gear driven by an electrical motor continuously controlled by an electronic control unit in response to a torque demand. Another aspect may be selection of the worm gear helix angle to effect a balance between worm gear teeth friction and load placed on the worm gear by the planetary gear set, such that power required to drive the worm gear is minimized for all input load conditions.

Description

technical field [0001] The present disclosure relates generally to the field of motor vehicles, and more particularly, but not by way of limitation, to infinitely variable mechanical continuously variable transmissions implemented in motor vehicles with internal combustion engines. Background technique [0002] Motor vehicles typically have a drive train in which an internal combustion engine provides power / momentum to the wheels or other actuating mechanism through a transmission that uses gear ratios to provide speed and torque conversion from a rotating drive shaft to the wheels . A typical transmission has included a combination of planetary gears and clutches which are used to fix a set of gears relative to other gears, selecting one of several predetermined ratios in steps. [0003] More recently, continuously variable / continuously variable transmissions (CVTs) have emerged in various forms (e.g., belt drives, pulley drives, etc.) to provide continuously variable vari...

Claims

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Application Information

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IPC IPC(8): B60W10/04B60L50/16
CPCB60K6/36B60K6/48F16H3/724Y10S903/918Y10S903/91Y10S903/902Y02T10/62B60K6/365F16H3/76B60W20/00F16H1/16B60W10/08F16H2037/104B60W10/06
Inventor D·R·阿尔维斯
Owner D·R·阿尔维斯