Continuously variable transmission for vehicle

US8926472B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8926472-B2
Application numberUS-201213979941-A
CountryUS
Kind codeB2
Filing dateJan 12, 2012
Priority dateFeb 15, 2011
Publication dateJan 6, 2015
Grant dateJan 6, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

Construction of a continuously variable transmission device for a vehicle is achieved that, when a shift lever is shifted to a selection position for a direction opposite the traveling direction at that time, it is capable of preventing the vehicle from continuing to travel at high speed in a direction opposite the direction intended by the operator. When the shift lever is shifted to a selection position of a direction opposite the traveling direction at that time, and the vehicle speed is faster than a specified speed (V 1 ), the connection of a clutch device that transmits power between a continuously variable transmission mechanism and a differential gear mechanism is disconnected, and the drive force from the drive source is prevented from being further transmitted to the wheels. As a result, it is possible to cause the vehicle to decelerate without accelerating even when the operator tries to move faster in the opposite direction, or when the operator steps on the accelerator pedal with the intention of accelerating in the opposite direction, and thus it is possible to prevent the vehicle from continuing to travel at high speed in the direction opposite the intended direction of the operator.

First claim

Opening claim text (preview).

What is claimed is: 1. A continuously variable transmission device for a vehicle, comprising: a continuously variable transmission mechanism; a differential gear mechanism that includes a combination of a plurality of gears; a clutch device that switches the power transmission path between the continuously variable transmission mechanism and the differential gear mechanism; and a controller that switches the operation of the continuously variable mechanism, differential gear…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US8926472B2 cover?
Construction of a continuously variable transmission device for a vehicle is achieved that, when a shift lever is shifted to a selection position for a direction opposite the traveling direction at that time, it is capable of preventing the vehicle from continuing to travel at high speed in a direction opposite the direction intended by the operator. When the shift lever is shifted to a selecti…
Who is the assignee on this patent?
Shinojima Takumi, Noji Sachiko, Nakamura Hiromasa, and 2 more
What technology area does this patent fall under?
Primary CPC classification B60W10/101. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).