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1. 发明申请

US20100081546A1 HYDRAULIC CONTROL DEVICE FOR MULTI-SPEED AUTOMATIC TRANSMISSION 有权
标题翻译：用于多速自动变速器的液压控制装置
公开(公告)号：US20100081546A1
公开(公告)日：2010-04-01
申请号：US12561742
申请日：2009-09-17
申请人： Yuhei YOSHIOKA , Kazuyuki Noda , Naoki Itazu , Yoshinobu Nozaki
发明人： Yuhei YOSHIOKA , Kazuyuki Noda , Naoki Itazu , Yoshinobu Nozaki
IPC分类号： F16H61/26
CPC分类号： F16H61/12 , F16H61/0206 , F16H61/686 , F16H63/3483 , F16H2061/122 , F16H2061/1268 , Y10T477/69363 , Y10T477/693635 , Y10T477/693962 , Y10T477/693973 , Y10T477/69398
摘要： A hydraulic control device for a multi-speed automatic transmission includes friction engagement elements, several hydraulic servos that engage and release the friction engagement elements, solenoid valves for engagement control, and a sorting switch valve that allocates engagement pressure from at least one of the solenoid valves for engagement control to two of the hydraulic servos. The sorting switch is switched between a first position that supplies engagement pressure to one of the two hydraulic servos in at least a Reverse, non-drive range and a specific Forward gear range, and a second position that supplies engagement pressure to the two hydraulic servos in other than the Forward range. The hydraulic control device supplies the engagement pressure to the two hydraulic servos when an all-solenoids-off failure occurs and the sorting switch is in the second position, and cuts off a source pressure to all solenoid valves when an all-solenoids-off failure occurs while the sorting switch valve is in the first position.
摘要翻译：用于多速自动变速器的液压控制装置包括摩擦接合元件，接合和释放摩擦接合元件的几个液压伺服机构，用于接合控制的电磁阀和分配开关阀，其分配来自螺线管中至少一个的接合压力两个液压伺服系统的接合控制阀。分拣开关在至少在反向，非驱动范围和特定前进档位中向两个液压伺服机构中的一个提供接合压力的第一位置和向两个液压伺服机构提供接合压力的第二位置之间切换在前进范围以外。当全电磁阀故障发生时，液压控制装置向两个液压伺服系统提供接合压力，并且分选开关处于第二位置，并且当全电磁阀断电故障时切断所有电磁阀的源压力在分选开关阀处于第一位置时发生。

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