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1. 发明专利

JP2011174574A Controller and control method of belt-type continuously variable transmission for vehicle 有权
标题翻译：用于车辆的带式连续可变传动的控制器和控制方法
公开(公告)号：JP2011174574A
公开(公告)日：2011-09-08
申请号：JP2010040470
申请日：2010-02-25
申请人： Jatco Ltd , Nissan Motor Co Ltd , ジヤトコ株式会社 , 日産自動車株式会社
发明人： DOIHARA KATSUMI , KODAMA KIMIHISA , YOSHIKAWA YASUAKI , NISHI MASAHIRO , KOYAMA KEISUKE , NAKAMURA KENTA , SAWANO SEITEN , KAWAGUCHI EISHIN
IPC分类号： F16H61/02 , F16H59/68 , F16H61/662
摘要： PROBLEM TO BE SOLVED: To achieve improvement in control stability of secondary oil-pressure while ensuring estimation accuracy of a belt slip state during belt slip control.
SOLUTION: A belt-type continuously variable transmission mechanism 4 has a primary pulley 42, a secondary pulley 43, and a belt 44. A controller of the belt-type continuously variable transmission mechanism includes a secondary hydraulic control means 101 that determines a command secondary oil-pressure by hydraulic feedback control based on a deviation between a target secondary oil-pressure and an actual secondary oil-pressure, a belt-slip control means 102 that vibrates the secondary oil-pressure so as to estimate a belt-slip state by monitoring a phase difference θ between a vibration component included in the actual secondary oil-pressure and a vibration component included in an actual change gear ratio and determines the command secondary oil-pressure by phase-difference feedback control, which maintains a prescribed belt-slip state, on the basis of the estimation, and a switching means (deviation switching part 92d, vibration switching part 93c, and correction-amount switching part 94h) that switches hydraulic control between the secondary hydraulic control means 101 and the belt-slip control means 102 by the determination based on belt-slip control permission conditions.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了实现二次油压的控制稳定性的提高，同时确保皮带打滑控制期间的皮带打滑状态的估计精度。带式无级变速机构4具有主带轮42，次级带轮43和带44。带式无级变速机构的控制器包括：二级液压控制装置101，其确定基于目标辅助油压和实际次级油压之间的偏差的液压反馈控制的二次油压命令，使第二油压振动从而估计带传送速度的皮带滑移控制装置102，通过监视包括在实际二次油压中的振动分量与包括在实际变速比中的振动分量之间的相位差θ来确定通过相位差反馈控制的命令二次油压，其保持规定的基于估计的皮带滑移状态，切换装置（偏差切换部92d，振动切换部93c，校正量开关通过基于皮带滑移控制允许条件的判断，在二次液压控制装置101和皮带滑移控制装置102之间切换液压控制。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2010261586A Control device and control method for belt type continuously variable transmission 有权
标题翻译：用于带式连续可变传动的控制装置和控制方法
公开(公告)号：JP2010261586A
公开(公告)日：2010-11-18
申请号：JP2010088856
申请日：2010-04-07
申请人： Jatco Ltd , Nissan Motor Co Ltd , ジヤトコ株式会社 , 日産自動車株式会社
发明人： DOIHARA KATSUMI , KODAMA KIMIHISA , YOSHIKAWA YASUAKI , NISHI MASAHIRO , KOYAMA KEISUKE , NAKAMURA KENTA , SAWANO SEITEN , KAWAGUCHI EISHIN
IPC分类号： F16H61/02 , F16H61/662
摘要： PROBLEM TO BE SOLVED: To provide a control device and a control method for a belt type continuously variable transmission capable of improving the stability in control of secondary oil-pressure while ensuring the accuracy in estimation of a belt slip state during control of belt slip.
SOLUTION: The control device has a primary pulley 42, a secondary pulley 43 and a belt 44 and is provided with a secondary oil-pressure control unit 92 determining a commanded secondary oil-pressure through feedback control based on the deviation between a target secondary oil-pressure and a real secondary oil-pressure to control the secondary oil pressure to the secondary pulley 43. In the belt type continuously variable transmission mechanism 4, a belt slip control means (Fig.8) estimating the belt slip state by monitoring the phase difference θ between a vibration component included in the real secondary oil-pressure and a vibration component included in a real change gear ratio and controlling to reduce the real secondary oil-pressure so as to maintain a predetermined belt slip state based on the estimation is provided, and the secondary oil-pressure control part 92 controls the secondary oil-pressure to maintain a target value of the phase difference θ in place of the feedback control based on the deviation during control of the belt slip.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供一种用于带式无级变速器的控制装置和控制方法，其能够提高控制二次油压的稳定性，同时确保在控制期间的带打滑状态的估计精度皮带打滑。解决方案：控制装置具有主滑轮42，次滑轮43和皮带44，并且设置有二次油压控制单元92，其通过反馈控制确定所指示的次级油压，所述次级油压控制单元92基于目标辅助油压和真正的二次油压，以控制次级滑轮43的次级油压。在带式无级变速机构4中，皮带打滑控制装置（图8）通过监测包括在实际二次油压中的振动分量与包括在实际变速比中的振动分量之间的相位差θ，并且控制以减小实际二次油压，以便基于所述第二油压保持预定的带打滑状态并且二次油压控制部92控制二次油压以维持相位差θ的目标值代替feedbac k控制基于皮带滑移控制期间的偏差。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2007100899A Transmission gear ratio control device for belt type continuously variable transmission 有权
标题翻译：用于带式连续可变传动的变速齿轮比控制装置
公开(公告)号：JP2007100899A
公开(公告)日：2007-04-19
申请号：JP2005293733
申请日：2005-10-06
申请人： Jatco Ltd , ジヤトコ株式会社
发明人： NIHEI AYANORI , IZUMI TETSUYA , KIN ZENSAI , SHINOHARA CHIKASHI , SAWANO SEITEN , NUMATA TAKUYA
IPC分类号： F16H61/02 , F16H9/00 , F16H59/14 , F16H59/24 , F16H59/70 , F16H61/662
CPC分类号： F16H61/66259 , F16H2061/6611 , Y10T477/619 , Y10T477/6237 , Y10T477/624 , Y10T477/6242
摘要： PROBLEM TO BE SOLVED: To suppress change in engine speed occurring when a driver returns an accelerator pedal during the travel in a mode fixing a transmission gear ratio. SOLUTION: In a line pressure control device for a belt type continuously variable transmission of the invention, when the transmission gear ratio is feedback-controlled based on difference between an actual transmission ratio and a target transmission gear ratio, during the travel in a transmission gear ratio fixing mode holding the target transmission gear ratio to be constant (S14), and when input torque to the primary pulley is abruptly changed (S17), supply pressure to the primary pulley is corrected by feed forward to suppress change in groove width of the primary pulley caused by the abrupt change in input torque (S17, S18). COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了抑制在固定传动齿轮比的模式中驾驶员在行驶期间返回加速踏板时发生的发动机转速的变化。解决方案：在本发明的带式无级变速器的线路压力控制装置中，当传动齿轮比根据实际变速比和目标传动比之间的差异反馈控制时，在行驶期间将目标传动比保持恒定的传动齿轮比固定模式（S14），当初级皮带轮的输入扭矩急剧变化时（S17），通过前馈来补偿对主滑轮的供给压力，抑制槽的变化由于输入转矩的突然变化引起的主滑轮的宽度（S17，S18）。版权所有（C）2007，JPO＆INPIT

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