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公开(公告)号：US20240084893A1
公开(公告)日：2024-03-14
申请号：US18274910
申请日：2022-02-22
IPC分类号： F16H61/662 , F16H15/04
CPC分类号： F16H61/66272 , F16H15/04 , F16H2061/124
摘要： A power generation system includes: a prime mover; a magnetic gear generator configured to be driven by an input from the prime mover to generate power; a power converter connected to the magnetic gear generator; an operation mode switch unit configured to switch an operation mode of the magnetic gear generator to a step-out avoidance mode in response to that a step-out parameter indicating a risk of step-out of the magnetic gear generator exceeds a prescribed allowable range; and a reduction command unit configured to give the prime mover an input reduction command to reduce the input from the prime mover and configured to give the power converter a torque reduction command to reduce a generator torque of the magnetic gear generator, in the step-out avoidance mode.
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公开(公告)号：US11662020B2
公开(公告)日：2023-05-30
申请号：US17468618
申请日：2021-09-07
发明人： Toru Yagasaki
IPC分类号： F16H55/56 , F16H61/662 , F16H57/04
CPC分类号： F16H61/66272 , F16H55/56 , F16H57/0434 , F16H2061/66277 , F16H2061/66295
摘要： A continuously variable transmission changes a gear ratio by changing a groove width between the fixed side pulley half body and the movable side pulley half body in each of the driving pulley and the driven pulley using pulley pressure. At least any of a drive shaft of the driving pulley and a driven shaft of the driven pulley includes a pulley pressure supply oil passage for supplying pulley pressure to the movable side pulley half body, a lubricating oil passage provided on a downstream of the pulley pressure supply oil passage to supply oil as a lubricating oil to an endless member, and a flow control valve that is provided between the pulley pressure supply oil passage and the lubricating oil passage and operates according to pulley pressure.
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公开(公告)号：US20190063598A1
公开(公告)日：2019-02-28
申请号：US16079842
申请日：2017-03-07
发明人： Kenichi TSUCHIDA , Toshiaki HAYASHI , Yoichiro KIMURA , Syuji MORIYAMA , Yoshinobu SOGA , Hiromitsu NITANI , Takafumi INAGAKI , Tetsuya YAMAMOTO
IPC分类号： F16H61/14 , F16H61/02 , F16H61/686 , F16H61/00 , F16H59/72 , F16H61/662
CPC分类号： F16H61/142 , F16H59/72 , F16H61/0009 , F16H61/0025 , F16H61/0206 , F16H61/66272 , F16H61/686 , F16H2059/385 , F16H2061/0037
摘要： A hydraulic control device includes: a pressure regulation valve that regulates a hydraulic pressure of oil supplied from an oil pump; a discharge oil passage through which the oil discharged from a fluid coupling flows when a lockup clutch is disengaged; a lubrication oil passage that supplies the oil from the discharge oil passage to a location to be lubricated; a return oil passage that returns the oil drained from the pressure regulation valve to a suction port of the oil pump; a connection oil passage that connects the lubrication oil passage and the return oil passage; and a flow direction regulation valve that is provided in the connection oil passage.
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公开(公告)号：US20180335138A1
公开(公告)日：2018-11-22
申请号：US15596219
申请日：2017-05-16
发明人： Ronald F. Lochocki , Christopher J. Weingartz , Greg J. Perantoni , Stuart W. Parker , Paul G. Otanez , Bret M. Olson , Mary M. Whitley , Nathan A. Schmidt
IPC分类号： F16H61/662 , F16H9/18
CPC分类号： F16H61/66272 , F16H9/18 , F16H2061/66277
摘要： An apparatus for ratio control of a continuously variable transmission includes a driver commanded ratio unit outputting a signal defining a commanded ratio. A clamp control portion is in communication with the driver commanded ratio unit. The clamp control portion includes: a ratio limits and override ring selecting a ratio matching the commanded ratio from an executable functions having stored ratio code data; a screening monitor continuously receiving output from the executable functions and using an input from a vehicle speed signal to compute minimum and maximum ratio limits for the ratio selected by the ratio limits and override ring; and a ratio control execution ring in communication with the screening monitor. The ratio control execution ring calculates a range of pressures allowed for operation of both primary and secondary pulleys of the continuously variable transmission.
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公开(公告)号：US20180202551A1
公开(公告)日：2018-07-19
申请号：US15869955
申请日：2018-01-12
发明人： Kohei DODO
IPC分类号： F16H61/662
CPC分类号： F16H61/66272 , F16H59/46 , F16H59/60 , F16H2059/465
摘要： A control apparatus for a vehicle, which is provided with a drive power source, drive wheels and a continuously variable transmission, includes a friction-force control portion configured to control a friction force acting between a belt and pulleys of the continuously variable transmission, based on a belt-slip information received from an external device located outside the vehicle. The belt-slip information represents at least one belt slippy area in which a belt slippage is more likely to occur in the continuously variable transmission. The friction-force control portion controls the friction force such that the friction force is made larger in the at least one belt slippy area than in other areas in which the belt slippage is less likely to occur in the continuously variable transmission.
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公开(公告)号：US09958063B2
公开(公告)日：2018-05-01
申请号：US15117339
申请日：2015-02-16
申请人： JATCO Ltd
发明人： Yasuyuki Hashimoto , Seiichiro Takahashi , Tomoaki Honma , Tomoaki Kabe , Nobuhiko Morifuji , Nobuhide Kato , Hitoshi Goka , Koichi Sugita
IPC分类号： F16H59/00 , F16H61/00 , F16H63/00 , F16H61/662
CPC分类号： F16H61/66272 , F16H61/0021
摘要： A hydraulic control device controls hydraulic pressure supplied to a continuously variable transmission. The hydraulic control device includes a pressure regulating valve, a solenoid valve configured to control the pilot pressure, line pressure control means, and hydraulic control means. The pressure regulating valve includes an input port to which line pressure is input, an output port configured to supply an oil chamber of a second pulley with a second pulley pressure, a drain port configured to discharge the second pulley pressure from the oil chamber, and a spool moving according to pilot pressure to regulate the second pulley pressure. The line pressure control means is configured to control the line pressure on the basis of the second pulley pressure and first pulley pressure of first pulley. The hydraulic control means is configured to temporarily change the pilot pressure from set pressure to configure the line pressure identical to the second pulley pressure.
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公开(公告)号：US20180100580A1
公开(公告)日：2018-04-12
申请号：US15289454
申请日：2016-10-10
发明人： Chunhao J. Lee , Dongxu Li , Farzad Samie , Chi-kuan Kao , Kumar V. Hebbale
IPC分类号： F16H61/662 , F16H9/18
CPC分类号： F16H61/662 , F16H9/18 , F16H61/66272 , F16H61/702 , F16H2059/506 , F16H2061/122
摘要： A continuously variable transmission, a transmission control system, and a method is provided. The control system is configured to determine whether a predetermined condition is met for applying a clutch critical pressure to an applied clutch. The clutch critical pressure is less than line pressure and is a pressure at which the clutch may slip upon experiencing a predetermined torque disturbance level. The control system is configured to command the clutch critical pressure to be applied to the clutch if the predetermined condition is met. The control system is further configured to determine whether the clutch is slipping beyond a predetermined threshold, and if the clutch is slipping beyond the predetermined threshold, command a clutch slip control scheme to be applied to the clutch that is configured to bring a clutch slip of the clutch under the predetermined threshold.
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公开(公告)号：US20180094710A1
公开(公告)日：2018-04-05
申请号：US15557612
申请日：2015-03-18
发明人： Chengwu Duan , Ying Huang
IPC分类号： F16H9/12 , F16H61/662
CPC分类号： F16H9/125 , F16H9/12 , F16H61/66272 , F16H2061/66277
摘要： A continuously variable transmission (CVT) (14) includes a drive pulley (18), a driven pulley (20), and an endless rotatable device (22) coupled between the drive and driven pulleys (18, 20). The drive pulley (18) and the driven pulley (20) each include pulley teeth (19T, 21T), and the endless rotatable device (22) includes device teeth (22T). A controller (50) can control the operation of the CVT and can execute the following instructions: (a) receiving a torque request while the device teeth (22T) are mating with the pulley teeth (19T, 21T); (b) determining whether the torque request direction is opposite to the input torque direction; (c) determining whether a current clamping force applied by an actuator (28, 30) to the drive pulley (18) is sufficient to change the direction of the torque transmitted by the drive pulley (18); and (d) commanding the actuator (28; 30) to increase the current clamping force when the current clamping force is not sufficient to change the direction of the torque transmitted by the drive pulley (18).
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公开(公告)号：US20180079418A1
公开(公告)日：2018-03-22
申请号：US15558825
申请日：2016-02-22
申请人： JATCO Ltd
发明人： Hiroki IWASA , Hironori MIYAISHI , Tetsuya IZUMI
IPC分类号： B60W30/18 , B60K6/48 , B60K6/543 , B60L7/10 , B60W20/00 , B60W10/02 , B60W10/08 , B60W10/107 , B60W10/30 , F16H61/662 , F16H61/00
CPC分类号： B60W30/18127 , B60K6/40 , B60K6/48 , B60K6/543 , B60L7/10 , B60L7/14 , B60L50/16 , B60W10/02 , B60W10/08 , B60W10/10 , B60W10/107 , B60W10/30 , B60W20/00 , B60W2510/108 , B60W2540/10 , B60W2540/12 , B60W2710/021 , B60W2710/083 , B60W2710/1005 , B60W2710/1083 , B60Y2200/92 , F16H59/22 , F16H61/0021 , F16H61/0028 , F16H61/662 , F16H61/66272 , F16H2061/66204 , F16H2061/66286 , Y10S903/918 , Y10S903/93 , Y10S903/946
摘要： A vehicle control device for controlling a vehicle including an oil pump driven by a transmission of a rotation of the motor-generator; and a hydraulic pressure supply unit for supplying a hydraulic pressure to the continuously variable transmission. The hydraulic pressure is generated by regulating a pressure of an oil discharged from the oil pump. When a regenerative braking is performed by the motor-generator based on a deceleration request from a driver, the hydraulic pressure supply unit supplies a hydraulic pressure based on a first hydraulic pressure and a second hydraulic pressure to the continuously variable transmission. The first hydraulic pressure is a hydraulic pressure to transmit an input torque input to the continuously variable transmission during the regenerative braking. The second hydraulic pressure is a hydraulic pressure to shift the continuously variable transmission during the regenerative braking. During the regenerative braking, the first hydraulic pressure is set to equal to or less than a hydraulic pressure found by subtracting the second hydraulic pressure from a hydraulic pressure suppliable to the continuously variable transmission.
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公开(公告)号：US09816610B2
公开(公告)日：2017-11-14
申请号：US14648728
申请日：2013-11-29
CPC分类号： F16H61/66272 , F16H61/0025 , F16H61/0206 , F16H61/66259
摘要： Control system for a continuously variable transmission with a first and a second pair of conical sheaves each with adjustable running radius, in which of each pair at least one sheave (14a, 14b) is coupled to a first and a second hydraulic actuator (20a, 20b) respectively which sets the axial sheave position in dependence of the amount of hydraulic medium supplied thereto, in which the actuators are connected with means to supply and discharge thereto/therefrom respectively, hydraulic medium, and one actuator is connected to a source of hydraulic pressure medium, and in which furthermore the first and second actuator respectively is connected with a first and second control chamber (60, 124) respectively, filled with hydraulic medium and having a variable control volume, in such a way that an increase of the first control volume is coupled to a decrease of the second control volume, and vice versa.
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