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1. WO2020110658 - CONTROL DEVICE AND CONTROL METHOD FOR CONTINUOUSLY VARIABLE TRANSMISSION

Publication Number WO/2020/110658
Publication Date 04.06.2020
International Application No. PCT/JP2019/043813
International Filing Date 08.11.2019
IPC
F16H 59/44 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
59Control inputs to change-speed- or reversing-gearings for conveying rotary motion
36Inputs being a function of speed
44dependent on machine speed
F16H 59/70 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
59Control inputs to change-speed- or reversing-gearings for conveying rotary motion
68Inputs being a function of gearing status
70dependent on the ratio established
F16H 61/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
61Control functions within change-speed- or reversing-gearings for conveying rotary motion
02characterised by the signals used
F16H 61/12 2010.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
61Control functions within change-speed- or reversing-gearings for conveying rotary motion
12Detecting malfunction or potential malfunction, e.g. fail safe
F16H 61/662 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
61Control functions within change-speed- or reversing-gearings for conveying rotary motion
66specially adapted for continuously variable gearings
662with endless flexible members
CPC
F16H 59/44
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
59Control inputs to ; control units of; change-speed-, or reversing-gearings for conveying rotary motion
36Inputs being a function of speed
44dependent on machine speed of the machine, ; e.g. the vehicle
F16H 59/70
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
59Control inputs to ; control units of; change-speed-, or reversing-gearings for conveying rotary motion
68Inputs being a function of gearing status
70dependent on the ratio established
F16H 61/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
61Control functions within ; control units of; change-speed- or reversing-gearings for conveying rotary motion ; ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
02characterised by the signals used
F16H 61/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
61Control functions within ; control units of; change-speed- or reversing-gearings for conveying rotary motion ; ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
12Detecting malfunction or potential malfunction, e.g. fail safe
F16H 61/662
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
61Control functions within ; control units of; change-speed- or reversing-gearings for conveying rotary motion ; ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
66specially adapted for continuously variable gearings
662with endless flexible means
Applicants
  • ジヤトコ株式会社 JATCO LTD [JP]/[JP]
  • 日産自動車株式会社 NISSAN MOTOR CO., LTD. [JP]/[JP]
Inventors
  • 松井 淳基 MATSUI, Junki
Agents
  • 小林 博通 KOBAYASHI, Hiromichi
  • 富岡 潔 TOMIOKA, Kiyoshi
Priority Data
2018-22520630.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) CONTROL DEVICE AND CONTROL METHOD FOR CONTINUOUSLY VARIABLE TRANSMISSION
(FR) DISPOSITIF DE COMMANDE ET PROCÉDÉ DE COMMANDE POUR UNE TRANSMISSION À VARIATION CONTINUE
(JA) 無段変速機の制御装置および制御方法
Abstract
(EN)
This control device for a belt-type continuously variable transmission (CVT) has: a drum rotation sensor (96) that detects the rotation of a drum member (33) of a forward/reverse switching mechanism (3); a primary rotation sensor (90) that detects the rotation of a primary rotary shaft (40); and a turbine rotation estimation unit (80) that calculates the turbine estimation value (NTBN') of a turbine rotary shaft (21) on the basis of the detection value of the drum rotation sensor (96) and the primary rotation sensor (90). When the detection value of the drum rotation sensor (96) and the detection value of the primary rotation sensor (90) are unclear, the turbine rotation estimation unit (80) estimates the rotation speed of the unclear detection value by using at least two among the traveling/stop state, the fastened/released states of a forward clutch (31) and a reverse brake (32), and the transmission ratio of a variator (4), and calculates the turbine rotation estimation value (NTBN') by using the estimated rotation estimation value and the detection value of the other sensor.
(FR)
La présente invention concerne un dispositif de commande pour une transmission à variation continue (CVT pour Continuously Variable Transmission) de type à courroie qui comprend : un capteur de rotation de tambour (96) qui détecte la rotation d'un élément de tambour (33) d'un mécanisme de commutation vers l'avant/vers l'arrière (3) ; un capteur de rotation primaire (90) qui détecte la rotation d'un arbre rotatif primaire (40) ; et une unité d'estimation de rotation de turbine (80) qui calcule la valeur d'estimation de turbine (NTBN') d'un arbre rotatif de turbine (21) sur la base de la valeur de détection du capteur de rotation de tambour (96) et du capteur de rotation primaire (90). Lorsque la valeur de détection du capteur de rotation de tambour (96) et la valeur de détection du capteur de rotation primaire (90) ne sont pas claires, l'unité d'estimation de rotation de turbine (80) estime la vitesse de rotation de la valeur de détection non claire en utilisant au moins deux éléments parmi l'état de déplacement/d'arrêt, les états fixés/libérés d'un embrayage avant (31) et d'un frein inverse (32), et le rapport de transmission d'un variateur (4), et calcule la valeur d'estimation de rotation de turbine (NTBN') en utilisant la valeur d'estimation de rotation estimée et la valeur de détection de l'autre capteur.
(JA)
ベルト式無段変速機(CVT)の制御装置であって、前後進切替機構(3)のドラムメンバ(33)の回転を検出するドラム回転センサ(96)と、プライマリ回転軸(40)の回転を検出するプライマリ回転センサ(90)と、ドラム回転センサ(96)とプライマリ回転センサ(90)の検出値に基づいてタービン回転軸(21)のタービン回転推定値(NTBN')を計算するタービン回転推定部(80)と、を有する。タービン回転推定部(80)は、ドラム回転センサ(96)の検出値又はプライマリ回転センサ(90)の検出値が不明な場合、走行/停車状態、前進クラッチ(31)と後退ブレーキ(32)の締結/解放状態、バリエータ(4)の変速比のうち、少なくとも二つを用いて、不明な検出値の回転数を推定し、該推定された回転推定値と、他方のセンサ検出値とによってタービン回転推定値(NTBN')を計算する。
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