Half-toroidal traction drive continuously variable transmission for automobile propulsion systems (Traction drive materials, transmission design and efficiency)

Hisashi Machida, Hitoshi Hata, Masaki Nakano, Hirohisa Tanaka

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Environmental issues such as exhaust emission have simulated the development of a flexible transmission for an engine-vehicle propulsion system. The authors have been researching and developing the rolling-type CVT, continuously variable transmission, of a half-toroidal traction drive for about 14 years. It represents engineering achievement in the fields of heat treatment technology of rolling elements which transmit tangential force at a maximum Hertzian pressure of 2. 7 GOa, and a molecular design technology of synthetic traction fluid which works in the temperature range of MIN30 to 140°C. The paper shows the design principle of rolling element fatigue life and shear strength of traction fluid at high temperature, and discusses the performance of two types of CVTs of a single cavity with 80 kW and a double cavity with 200 kW transmission capacity.

Original languageEnglish
Pages (from-to)1154-1160
Number of pages7
JournalNippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume59
Issue number560
Publication statusPublished - 1993 Apr
Externally publishedYes

Fingerprint

Propulsion
Automobiles
Traction (friction)
Fluids
Shear strength
Heat treatment
Fatigue of materials
Engines
Temperature

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

@article{cd7b70d4442448549b491a5508d4e0b2,
title = "Half-toroidal traction drive continuously variable transmission for automobile propulsion systems (Traction drive materials, transmission design and efficiency)",
abstract = "Environmental issues such as exhaust emission have simulated the development of a flexible transmission for an engine-vehicle propulsion system. The authors have been researching and developing the rolling-type CVT, continuously variable transmission, of a half-toroidal traction drive for about 14 years. It represents engineering achievement in the fields of heat treatment technology of rolling elements which transmit tangential force at a maximum Hertzian pressure of 2. 7 GOa, and a molecular design technology of synthetic traction fluid which works in the temperature range of MIN30 to 140°C. The paper shows the design principle of rolling element fatigue life and shear strength of traction fluid at high temperature, and discusses the performance of two types of CVTs of a single cavity with 80 kW and a double cavity with 200 kW transmission capacity.",
author = "Hisashi Machida and Hitoshi Hata and Masaki Nakano and Hirohisa Tanaka",
year = "1993",
month = "4",
language = "English",
volume = "59",
pages = "1154--1160",
journal = "Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C",
issn = "0387-5024",
publisher = "Japan Society of Mechanical Engineers",
number = "560",

}

TY - JOUR

T1 - Half-toroidal traction drive continuously variable transmission for automobile propulsion systems (Traction drive materials, transmission design and efficiency)

AU - Machida, Hisashi

AU - Hata, Hitoshi

AU - Nakano, Masaki

AU - Tanaka, Hirohisa

PY - 1993/4

Y1 - 1993/4

N2 - Environmental issues such as exhaust emission have simulated the development of a flexible transmission for an engine-vehicle propulsion system. The authors have been researching and developing the rolling-type CVT, continuously variable transmission, of a half-toroidal traction drive for about 14 years. It represents engineering achievement in the fields of heat treatment technology of rolling elements which transmit tangential force at a maximum Hertzian pressure of 2. 7 GOa, and a molecular design technology of synthetic traction fluid which works in the temperature range of MIN30 to 140°C. The paper shows the design principle of rolling element fatigue life and shear strength of traction fluid at high temperature, and discusses the performance of two types of CVTs of a single cavity with 80 kW and a double cavity with 200 kW transmission capacity.

AB - Environmental issues such as exhaust emission have simulated the development of a flexible transmission for an engine-vehicle propulsion system. The authors have been researching and developing the rolling-type CVT, continuously variable transmission, of a half-toroidal traction drive for about 14 years. It represents engineering achievement in the fields of heat treatment technology of rolling elements which transmit tangential force at a maximum Hertzian pressure of 2. 7 GOa, and a molecular design technology of synthetic traction fluid which works in the temperature range of MIN30 to 140°C. The paper shows the design principle of rolling element fatigue life and shear strength of traction fluid at high temperature, and discusses the performance of two types of CVTs of a single cavity with 80 kW and a double cavity with 200 kW transmission capacity.

UR - http://www.scopus.com/inward/record.url?scp=0027576173&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027576173&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0027576173

VL - 59

SP - 1154

EP - 1160

JO - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

JF - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

SN - 0387-5024

IS - 560

ER -