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11. 发明公开

EP2238372A1 HYDRAULIC CONTROL SYSTEM AND METHOD OF CONTINUOUSLY VARIABLE TRANSMISSION 有权
标题翻译：液压控制系统及方法可变变速器
公开(公告)号：EP2238372A1
公开(公告)日：2010-10-13
申请号：EP08869684.4
申请日：2008-12-23
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： OGATA, Yusuke , AOYAMA, Toshihiro
IPC分类号： F16H61/12 , F16H61/662
CPC分类号： F16H61/66272 , F16H61/12 , F16H2061/1264 , Y10T74/19153 , Y10T477/6237 , Y10T477/624 , Y10T477/6242 , Y10T477/6243
摘要： A hydraulic control system of continuously variable transmission includes: a first sheave pressure regulating valve (17) that regulates a line pressure (Pl), which is used for hydraulic control as a source pressure, to obtain a first sheave pressure (Pin); a fail-safe valve (19) that selects and outputs any one of the first sheave pressure (Pin) or a fail-safe hydraulic pressure (second sheave pressure Pout) that is applied to a drive pulley (21) at the time of a failure due to an excessive first sheave pressure (Pin) to the drive pulley (21); and a first regulator valve (12) and a second regulator valve (13) that regulate the line pressure (Pl). An output pressure (Psf) of the fail-safe valve (19) is supplied to the first and second regulator valves (12 and 13) in a feedback manner as a drive pulley (21) side hydraulic pressure to thereby regulate the line pressure (Pl).

12. 发明授权

EP2183506B1 HYDRAULIC CONTROL SYSTEM FOR TRANSMISSION 有权
标题翻译：液压控制系统用于齿轮
公开(公告)号：EP2183506B1
公开(公告)日：2014-08-06
申请号：EP08829836.9
申请日：2008-08-25
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： OGATA, Yusuke , HABUCHI, Ryoji , AOYAMA, Toshihiro
IPC分类号： F16H61/662 , F16H61/00
CPC分类号： F16H61/66272 , F16H61/0021 , F16H2061/66286 , Y10T477/62427 , Y10T477/6243

13. 发明公开

EP2183506A1 HYDRAULIC CONTROL SYSTEM FOR TRANSMISSION 有权
标题翻译：液压控制系统用于齿轮
公开(公告)号：EP2183506A1
公开(公告)日：2010-05-12
申请号：EP08829836.9
申请日：2008-08-25
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： OGATA, Yusuke , HABUCHI, Ryoji , AOYAMA, Toshihiro
IPC分类号： F16H61/662 , F16H61/00
CPC分类号： F16H61/66272 , F16H61/0021 , F16H2061/66286 , Y10T477/62427 , Y10T477/6243
摘要： In a hydraulic control system for a transmission, line pressure Pl is adjusted in accordance with a second solenoid pressure Psls if the ratio of a first sheave pressure Pin with respect to a second solenoid pressure Psls is equal to or less than the gain α. If not so, the line pressure Pl is adjusted in accordance with the first sheave pressure Pin. Consequently, the gain η of the first sheave pressure Pin with respect to a first solenoid pressure Pslp at a first sheave pressure adjustment valve 16 and the gain α of a second sheave pressure Pout with respect to the second solenoid pressure Psls at a second sheave pressure adjustment valve 17 can be individually set while the line pressure Pl can be suppressed to the substantially requisite minimum in the entire control region.

14. 发明公开

EP2041457A2 VEHICULAR BELT-DRIVEN CONTINUOUSLY VARIABLE TRANSMISSION AND CONTROL METHOD THEREOF 有权
标题翻译：可变带传动用于车辆及其控制方法
公开(公告)号：EP2041457A2
公开(公告)日：2009-04-01
申请号：EP07804967.3
申请日：2007-06-20
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： OGATA, Yusuke , SOGA, Yoshinobu , HABUCHI, Ryoji , YASUE, Hideki , NAKADA, Hirofumi
IPC分类号： F16H61/662
CPC分类号： F16H61/66272 , F16H2061/66277
摘要： In a vehicular belt-driven continuously variable transmission, belt squeezing force is inhibited from becoming excessive and a safety factor, with respect to belt slip, of belt squeezing force applied to a transmission belt (48) is reduced to a value that is less than or equal to 1.5 by reducing a pressure receiving area (SOUT) of an output side hydraulic cylinder (46c). As a result, a centrifugal hydraulic pressure canceller chamber on a secondary pulley side (46) can be eliminated thus simplifying the structure of the vehicular belt-driven continuously variable transmission, while belt squeezing force can be appropriately controlled.

15. 发明授权

EP2431635B1 HYDRAULIC DEVICE FOR STEPLESS TRANSMISSION AND STEPLESS TRANSMISSION 失效转让
标题翻译：液压装置的可变变速器和无级变速器
公开(公告)号：EP2431635B1
公开(公告)日：2014-07-09
申请号：EP09844619.8
申请日：2009-05-13
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： OGATA, Yusuke , TANAKA, Koichi , TAKAHASHI, Nobuaki , MATSUO, Kenji , NISHIDA, Naofumi
IPC分类号： F16H61/00 , F16H59/18 , F16H59/22 , F16H59/44 , F16H59/54
CPC分类号： F16H61/0031 , F16H61/0206 , F16H61/66259 , F16H2061/66286

16. 发明公开

EP2431635A1 HYDRAULIC DEVICE FOR STEPLESS TRANSMISSION 失效转让
标题翻译： HYDRAULISCHE VORRICHTUNGFÜREIN STUFENLOSES GETRIEBE UND STUFENLOSES GETRIEBE
公开(公告)号：EP2431635A1
公开(公告)日：2012-03-21
申请号：EP09844619.8
申请日：2009-05-13
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： OGATA, Yusuke , TANAKA, Koichi , TAKAHASHI, Nobuaki , MATSUO, Kenji , NISHIDA, Naofumi
IPC分类号： F16H61/00 , F16H59/18 , F16H59/22 , F16H59/44 , F16H59/54
CPC分类号： F16H61/0031 , F16H61/0206 , F16H61/66259 , F16H2061/66286
摘要： A hydraulic device includes a switch-over valve 1140 provided at a section of a sub-passage 1105 located downstream of a location where a first bypass passage 1117 is connected and located upstream of a primary regulator 1110. The switch-over valve 1140 is switched between a blocked state, where supply of hydraulic oil to a section of the sub-passage 1105 located downstream of the switch-over valve 1140 is blocked, and a communication state, where supply of hydraulic oil to the section of the sub-passage 1105 located downstream of the switch-over valve 1140 is permitted. In the hydraulic device, when the switch-over valve 1140 is switched to the communication state, as a discharge performance of a main pump 1102 increases, a first check valve 1118 closes. Supply paths for hydraulic oil discharged from the sub-pump 1103 are automatically switched in accordance with the discharge performance of the main pump 1102. When the switch-over valve 1140 is switched to the blocked state, the first check valve 1118 opens and hydraulic oil discharged from the sub-pump 1103 is introduced into a main passage 1104.
摘要翻译：液压装置包括设置在位于第一旁通通道1117连接并位于主调节器1110的上游的位置下游的子通道1105的部分处的切换阀1140.切换阀1140被切换在液压油向位于切换阀1140下游侧的分段通路1105的供给被阻塞的阻塞状态之间，以及连通状态，在该通路状态下，将液压油供给到副通路1105的一部分位于切换阀1140的下游。在液压装置中，当切换阀1140切换到通信状态时，随着主泵1102的排出性能的增加，第一止回阀1118关闭。从副泵1103排出的液压油的供给路径根据主泵1102的排出性能自动切换。当切换阀1140切换到阻塞状态时，第一止回阀1118打开，液压油从副泵1103排出的空气被引入主通路1104。

17. 发明授权

EP2238371B1 HYDRAULIC CONTROL SYSTEM OF CONTINUOUSLY VARIABLE TRANSMISSION 有权
标题翻译：液控制系统在可变传输
公开(公告)号：EP2238371B1
公开(公告)日：2011-07-20
申请号：EP08869489.8
申请日：2008-12-23
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： OGATA, Yusuke , AOYAMA, Toshihiro
IPC分类号： F16H61/12 , F16H61/662
CPC分类号： F16H61/12 , F16H61/0206 , F16H61/66259 , F16H2061/1232 , F16H2061/1264
摘要： A hydraulic control system of continuously variable transmission includes: a first sheave pressure regulating valve (17) that regulates a line pressure (Pl), which is used for hydraulic control as a source pressure, to obtain a first sheave pressure (Pin); a fail-safe valve (19) that selects and outputs any one of the first sheave pressure (Pin) or a fail-safe hydraulic pressure (second sheave pressure Pout) that is applied to a drive pulley (21) at the time of a failure due to an excessive first sheave pressure (Pin) to the drive pulley (21); and an orifice (25) that is provided in an oil passage (24) between the fail-safe valve (19) and the drive pulley (21). Then, a hydraulic pressure in the oil passage (24) on the drive pulley (21) side of the orifice (25) is supplied to the first sheave pressure regulating valve (17) as a feedback pressure.

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