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1. (EP3408565) METHOD FOR SLIP AVOIDANCE IN A BALL PLANETARY TYPE CONTINUOUSLY VARIABLE TRANSMISSION

Office : European Patent Office
Application Number: 17704611 Application Date: 26.01.2017
Publication Number: 3408565 Publication Date: 05.12.2018
Publication Kind : A1
Designated States: AL, AT, BA, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
Prior PCT appl.: Application Number:US2017015037 ; Publication Number: Click to see the data
IPC:
F16H 61/66
F16H 15/28
F16H 61/664
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
61
Control functions within change-speed- or reversing-gearings for conveying rotary motion
66
specially adapted for continuously variable gearings
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
15
Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
02
without members having orbital motion
04
Gearings providing a continuous range of gear ratios
06
in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
26
in which the member B has a spherical friction surface centered on its axis of revolution
28
with external friction surface
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
61
Control functions within change-speed- or reversing-gearings for conveying rotary motion
66
specially adapted for continuously variable gearings
664
Friction gearings
CPC:
F16H 61/6649
F16H 15/28
F16H 15/503
F16H 59/14
F16H 59/36
F16H 59/70
F16H 61/66
F16H 2059/147
F16H 2059/366
F16H 2059/702
F16H 2059/704
Applicants: DANA LTD
Inventors: DAVID JEFFREY M
MCINDOE GORDON M
MCLEMORE THOMAS NEIL
SEXTON PATRICK
SIMISTER MATTHEW
SMITHSON ROBERT A
Priority Data: 201662287309 26.01.2016 US
2017015037 26.01.2017 US
Title: (DE) VERFAHREN ZUR SCHLUPFVERMEIDUNG BEI STUFENLOSEN KUGELPLANETENGETRIEBE
(EN) METHOD FOR SLIP AVOIDANCE IN A BALL PLANETARY TYPE CONTINUOUSLY VARIABLE TRANSMISSION
(FR) PROCÉDÉ PERMETTANT D'ÉVITER UN GLISSEMENT DANS UNE TRANSMISSION À VARIATION CONTINUE DE TYPE PLANÉTAIRE À BILLES
Abstract:
(EN) Provided herein is a control system for a multiple-mode continuously variable transmission having a ball planetary variator. The control system has a transmission control module configured to receive a plurality of electronic input signals, and to determine a mode of operation from a plurality of control ranges based at least in part on the plurality of electronic input signals. The system also has a dither control module configured to store at least one calibration map, and configured to determine an oscillating change in speed ratio applied to a commanded speed ratio signal during operation of the CVP to manage thermal and mechanical stress on the surface of the ball.
(FR) La présente invention concerne un système de commande pour une transmission à variation continue à modes multiples possédant un variateur planétaire à billes. Le système de commande possède un module de commande de transmission conçu pour recevoir une pluralité de signaux électroniques d'entrée, et pour déterminer un mode de fonctionnement à partir d'une pluralité de plages de commande sur la base, au moins en partie, de la pluralité de signaux électroniques d'entrée. Le système comprend également un module de commande de signal de superposition configuré pour stocker au moins une carte d'étalonnage, et pour déterminer un changement de rapport de vitesse oscillant, appliqué à un signal de rapport de vitesse commandé pendant le fonctionnement de la transmission à variation continue, pour gérer les contraintes thermiques et mécaniques à la surface de la bille.
Also published as:
CN108603595KR1020180107180US20190040951WO/2017/132315