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公开(公告)号：US20150252895A1
公开(公告)日：2015-09-10
申请号：US14430665
申请日：2013-09-03
申请人： JATCO Ltd , NISSAN MOTOR CO., LTD.
发明人： Mamiko Inoue , Hiroyasu Tanaka , Takuichiro Inoue
IPC分类号： F16H61/662 , F16H59/14 , F16H59/18 , F16H61/70
CPC分类号： F16H61/66259 , F16H59/141 , F16H59/18 , F16H61/66227 , F16H61/6625 , F16H61/702 , F16H2037/023 , F16H2059/147 , F16H2059/183 , F16H2061/66218 , Y10T477/6217 , Y10T477/623 , Y10T477/688 , Y10T477/692
摘要： A transmission controller determines whether or not to downshift a sub-transmission mechanism based on an opening and an opening speed of an accelerator pedal and a torque change rate of an engine, and downshifts the sub-transmission mechanism when a determination is made to downshift the sub-transmission mechanism.
摘要翻译： 变速器控制器基于加速踏板的开度和开度以及发动机的转矩变化率来判定是否降档副变速机构，并且当判定为降档时，降档副变速机构 子传输机制。
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公开(公告)号：US20140342876A1
公开(公告)日：2014-11-20
申请号：US14364429
申请日：2012-11-09
申请人： JATCO LTD , NISSAN MOTOR CO., LTD.
发明人： Hiroyasu Tanaka , Mamiko Inoue , Ryousuke Nonomura , Takuichiro Inoue , Norio Asai , Masato Mori , Satoru Ishii , Fumito Shinohara
IPC分类号： B60W10/101 , B60W10/04
CPC分类号： B60W10/101 , B60W10/04 , B60Y2400/72 , F16H9/18 , F16H61/04 , F16H61/66259 , F16H61/70 , F16H2037/023 , F16H2061/085 , Y10T477/688
摘要： A transmission controller executes synchronization shift of shifting a variator in a direction opposite to a speed ratio change direction of a sub transmission mechanism when shifting a sub transmission mechanism. When a gear position of the sub transmission mechanism is at the second gear position and an output increase request of a power source is made, the transmission controller prohibits the synchronization shift and shifts only the sub transmission mechanism from a second gear position to a first gear position.
摘要翻译： 变速器控制器在变速副变速机构时，执行与副变速机构的变速比变更方向相反的方向移动变速器的同步变速。 当副变速机构的齿轮位置处于第二档位并且进行电源的输出增加请求时，变速器控制器禁止同步变速，并且仅将副变速机构从第二档位移动到第一档位 位置。
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公开(公告)号：US10655731B2
公开(公告)日：2020-05-19
申请号：US15559033
申请日：2016-02-17
申请人： JATCO Ltd , NISSAN MOTOR CO., LTD.
发明人： Takashi Koguchi , Sho Okutani , Kenji Hishida , Makoto Komatsu , Takuichiro Inoue , Jongkeun Lim , Hiroyasu Tanaka
IPC分类号： F16H61/02 , F16H59/44 , F16H61/662 , F16H37/02 , F16H61/04 , F16H59/18 , F16H61/70 , F16H61/66 , F16H61/00
摘要： As a mode switching shift line when a sub-transmission mechanism is switched from a first-speed to a second-speed, a first mode switching shift line, which prioritizes a learning of a hydraulic pressure with which a Low brake starts to slip and a learning of a hydraulic pressure with which a High clutch starts to transmit a torque, or a second mode switching shift line, which is a shift line in a Low side with respect to the first mode switching shift line and prioritizes a fuel efficiency of an engine is selected, and the sub-transmission mechanism is switched from the first-speed to the second-speed on the basis of the selected mode switching shift line.
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公开(公告)号：US09435434B2
公开(公告)日：2016-09-06
申请号：US14430665
申请日：2013-09-03
申请人： JATCO LTD , NISSAN MOTOR CO., LTD.
发明人： Mamiko Inoue , Hiroyasu Tanaka , Takuichiro Inoue
IPC分类号： F16H59/18 , F16H61/662 , F16H61/70 , F16H37/02 , F16H59/14
CPC分类号： F16H61/66259 , F16H59/141 , F16H59/18 , F16H61/66227 , F16H61/6625 , F16H61/702 , F16H2037/023 , F16H2059/147 , F16H2059/183 , F16H2061/66218 , Y10T477/6217 , Y10T477/623 , Y10T477/688 , Y10T477/692
摘要： A transmission controller determines whether or not to downshift a sub-transmission mechanism based on an opening and an opening speed of an accelerator pedal and a torque change rate of an engine, and downshifts the sub-transmission mechanism when a determination is made to downshift the sub-transmission mechanism.
摘要翻译： 变速器控制器基于加速踏板的开度和开度以及发动机的转矩变化率来判定是否降档副变速机构，并且当判定为降档时，降档副变速机构 子传输机制。
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公开(公告)号：US09157525B2
公开(公告)日：2015-10-13
申请号：US14387749
申请日：2013-02-21
申请人： JATCO LTD , NISSAN MOTOR CO., LTD.
CPC分类号： F16H61/061 , B60Y2300/18075 , F16H59/46 , F16H2061/064
摘要： The automatic transmission includes a first friction engagement element which is engaged when a first gear position is realized and disengaged when a second gear position is realized, a second friction engagement element which is engaged when the second gear position is realized and disengaged when the first gear position is realized, and a controller. The controller causes the second friction engagement element to slip by decreasing an instructional pressure for the second friction engagement element while running in the second gear position, and learns an engagement start pressure of the first friction engagement element based on a change in a differential rotation of the second friction engagement element, or in a parameter that changes in accordance with the differential rotation, at a time when an instructional pressure for the first friction engagement element is increased during the slip.
摘要翻译： 自动变速器包括第一摩擦接合元件，当实现第二齿轮位置时实现和分离第一齿轮位置时接合;第二摩擦接合元件，当第二齿轮位置被实现并且当第一齿轮 位置实现，控制器。 控制器通过在第二齿轮位置运行时减小第二摩擦接合元件的指示压力来使第二摩擦接合元件滑动，并且基于差动旋转的变化来学习第一摩擦接合元件的接合开始压力 在第一摩擦接合元件的指示压力在滑动期间增加时，第二摩擦接合元件，或在根据差速旋转变化的参数中。
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公开(公告)号：US20150105988A1
公开(公告)日：2015-04-16
申请号：US14387749
申请日：2013-02-21
申请人： JATCO LTD , NISSAN MOTOR CO., LTD.
IPC分类号： F16H61/06
CPC分类号： F16H61/061 , B60Y2300/18075 , F16H59/46 , F16H2061/064
摘要： The automatic transmission includes a first friction engagement element which is engaged when a first gear position is realized and disengaged when a second gear position is realized, a second friction engagement element which is engaged when the second gear position is realized and disengaged when the first gear position is realized, and a controller. The controller causes the second friction engagement element to slip by decreasing an instructional pressure for the second friction engagement element while running in the second gear position, and learns an engagement start pressure of the first friction engagement element based on a change in a differential rotation of the second friction engagement element, or in a parameter that changes in accordance with the differential rotation, at a time when an instructional pressure for the first friction engagement element is increased during the slip.
摘要翻译： 自动变速器包括第一摩擦接合元件，当实现第二齿轮位置时实现和分离第一齿轮位置时接合;第二摩擦接合元件，当第二齿轮位置被实现并且当第一齿轮 位置实现，控制器。 控制器通过在第二齿轮位置运行时减小第二摩擦接合元件的指示压力来使第二摩擦接合元件滑动，并且基于差动旋转的变化来学习第一摩擦接合元件的接合开始压力 在第一摩擦接合元件的指示压力在滑动期间增加时，第二摩擦接合元件，或在根据差速旋转变化的参数中。
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公开(公告)号：US10480648B2
公开(公告)日：2019-11-19
申请号：US15757455
申请日：2016-08-31
申请人： JATCO Ltd , NISSAN MOTOR CO., LTD.
摘要： In a vehicle equipped with a torque converter (4) having a lock-up clutch (3), learning control for obtaining a learning value (L_n) on the basis of meet-point information, with which the lock-up clutch (3) initiates torque transmission, is carried out. After acquiring the current learning detection value (M_n), a meet-point learning control unit (12c) calculates the current detection error (E_n) on the basis of the difference between the current learning detection value (M_n) and the previous learning value (L_(n−1)) that is stored. When the current and previous detection errors (E_n) and (E_n−1) have the same plus/minus sign, the current learning value correction amount is set to a larger value if the absolute value |(E_n−1)| of the previous detection error (E_n−1) is large than if the absolute value |(E_n−1)| is small. The sum of the previous learning value (L_(n−1)) and the current learning value correction amount is set as the present learning value (L_n).
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公开(公告)号：US10371256B2
公开(公告)日：2019-08-06
申请号：US15753705
申请日：2016-08-12
申请人： JATCO Ltd , NISSAN MOTOR CO., LTD.
摘要： In a vehicle on which a torque converter having a lock-up clutch is mounted between an engine and a transmission, a meet point learning controller is provided to perform learning control for obtaining a learning value based on information on a meet point at which the lock-up clutch starts torque transmission. The meet point learning controller estimates a LU transmission torque based on a difference between an engine torque signal value and a torque converter transmission torque when the lock-up clutch moves from a non-engaged state to an engaged state during traveling of the vehicle, and uses, as the meet point information, a meet point detection pressure at a time when the LU transmission torque estimated value is determined to have entered an upward trend.
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公开(公告)号：US10316967B2
公开(公告)日：2019-06-11
申请号：US15559472
申请日：2016-02-03
申请人： JATCO Ltd , NISSAN MOTOR CO., LTD.
IPC分类号： F16H59/40 , F16H61/662 , F16H9/18 , F16H61/00 , F16H59/42 , F16H59/66 , F16H59/46 , F16H59/50
摘要： CVT controller has rotation speed sensors detecting driving and driven wheel rotation speed; driving and driven wheel speed difference detection unit detecting wheel speed difference Δvfr; and bad road judgment unit judging that road is bad road when Δvfr is first value Δvfr_br or greater. CVT controller further has first belt clamping force increase unit increasing belt clamping force in case where road is judged to be bad road, as compared with case where road is not judged to be bad road; vibration detection unit detecting vehicle speed vibration fvsp; and second belt clamping force increase unit increasing belt clamping force when Δvfr is second value Δvfr_psec or greater or when fvsp is third value fvsp_psec or greater in case where road is not judged to be bad road, as compared with case where Δvfr is less than Δvfr_psec and case where fvsp is less than fvsp_psec.
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10.发明授权公开(公告)号：US10371259B2
公开(公告)日：2019-08-06
申请号：US15021451
申请日：2014-09-24
申请人： JATCO Ltd , NISSAN MOTOR CO., LTD.
发明人： Mamiko Inoue , Takuichiro Inoue , Hiroyasu Tanaka
IPC分类号： F16H61/70 , F16H61/08 , F16H37/02 , F16H61/662
摘要： A control device for a continuously variable transmission with an auxiliary transmission includes: a cooperative control section being configured to shift the auxiliary transmission mechanism during the first inertia phase time period, and to shift the variator during the second inertia phase time period, when the cooperative control in which an input torque to the continuously variable transmission is equal to or smaller than a predetermined value in the cooperative control is judged, and being configured to shift the auxiliary transmission mechanism during the first inertia phase time period, and to shift the variator during the first inertia phase time period when the cooperative control in which the input torque to the continuously variable transmission is greater than the predetermined value is judged.
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