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21. 发明专利

JPH09177928A CONTINUOUSLY VARIABLE TRANSMISSION 失效
公开(公告)号：JPH09177928A
公开(公告)日：1997-07-11
申请号：JP33971395
申请日：1995-12-26
申请人： AISIN AW CO
发明人： TSUKAMOTO KAZUMASA , INUZUKA TAKESHI , HATTORI MASASHI , FURUYA TSUYOSHI
IPC分类号： F16H9/26 , F16H37/02 , F16H37/08 , F16H61/16 , F16H61/18 , F16H61/662
摘要： PROBLEM TO BE SOLVED: To prevent the bobbling depending on the movement of a pulley at the starting time, by setting the energizing force of an energizing means to make the pulley ratio at the value near the pulley ratio corresponding to a neutral condition, at the vehicle starting time. SOLUTION: When the hydraulic pressure is increased sufficiently, the balance is formed at the pulley ratio after the minimum hydraulic pressure is fed. In this case, the spring loads of springs 65 and 66 are set to focus the pulley ratio at that in the neutral condition, during the time from the starting of the engagement (connection) of a low clutch (the running clutch) CL to the finishing of such an engagement. Consequently, by converting the pulley ratio from that after the minimum hydraulic pressure is fed, to the pulley ratio corresponding to the neutral condition, the bobbling at the starting time can be prevented.

22. 发明专利

JPH09166191A CONTINUOUSLY VARIABLE TRANSMISSION 失效
公开(公告)号：JPH09166191A
公开(公告)日：1997-06-24
申请号：JP32766495
申请日：1995-12-15
申请人： AISIN AW CO
发明人： TSUKAMOTO KAZUMASA , INUZUKA TAKESHI , HATTORI MASASHI
IPC分类号： F16H9/00 , F16H9/26 , F16H37/02 , F16H37/08 , F16H61/16 , F16H61/662
摘要： PROBLEM TO BE SOLVED: To prevent switching of two modes in a given pulley ratio region and to prevent the occurrence of reverse and over revolution, in a continuously variable transmission having a belt type continuously variable gear shifter and a planetary gear and achieving switching of a low mode and a high mode through clamp change of a clutch. SOLUTION: A sensor shoe 65 is provided to move in linkage with the moving sheave 7b of a primary pulley 7, and a recessed part 65a and other protrusion part than the recessed part are formed on the sensor shoe 65. Further, recessed parts 60a and 60b are formed in the spool of a low high control valve 60, and an interlock rod 66 is arranged between the sensor shoe 65 and the valve 60. In a given pulley ratio region, for example, the low pulley ratio side, in the low mode and the high mode, a moving sheave 65 is moved to the O/D side, the rod 66 has a base end part 66a moved over the protrusion of the sensor shoe 65 and a tip part 65b engaged with the recessed part 60a or 60b of the valve 60 to mechanically lock the valve 60. This constitution eliminates switching of a mode through clamp exchange of low clutches CL and CN.

23. 发明专利

JPH09100905A CONTROL DEVICE FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH09100905A
公开(公告)日：1997-04-15
申请号：JP26156595
申请日：1995-10-09
申请人： AISIN AW CO
发明人： TSUKAMOTO KAZUMASA , HAYABUCHI MASAHIRO , KOBAYASHI TOMOHIRO , YAMAMOTO YOSHIHISA , IWATA AKIHITO
IPC分类号： F16H3/66 , F16H61/12 , F16H61/20
摘要： PROBLEM TO BE SOLVED: To prevent the generation of response delay of a clutch and obtain the maximum effect of improving fuel consumption by neutral control. SOLUTION: This control device for an automatic transmission has a release detecting means 101 for detecting whether or not the release of a clutch is started, a pressure reducing means 102 for lowering oil pressure supplied to a hydraulic servo C-1 when a vehicle stop state is detected, and a pressure intensifying means 103 for immediately stopping pressure reduction to intensify oil pressure in the case of not detecting the release start of the clutch even if making the oil pressure, supplied to the hydraulic servo C-1, tower than the set pressure. When the vehicle stop state is detected, the pressure reducing means 102 lowers the oil pressure supplied to the hydraulic servo C-1. In the case of not detecting the release start of the clutch even if making the oil pressure, supplied to the hydraulic servo C-1, lower than the set pressure, the pressure intensifying means 103 immediately stops pressure reduction performed by the pressure reducing means 102 and intensifies the oil pressure supplied to the hydraulic servo C-1.

24. 发明专利

JPH0972416A CONTROLLER FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH0972416A
公开(公告)日：1997-03-18
申请号：JP22431295
申请日：1995-08-31
申请人： AISIN AW CO
发明人： TSUTSUI HIROSHI , TSUKAMOTO KAZUMASA , HAYABUCHI MASAHIRO , YAMAMOTO YOSHIHISA , IWATA AKIHITO
IPC分类号： F16H59/38 , F16H61/00 , F16H61/02 , F16H61/04 , F16H61/06 , F16H61/20 , F16H61/686
摘要： PROBLEM TO BE SOLVED: To provide an accurate rotational speed changing rate and a proper engaging characteristic without generating erroneous learning. SOLUTION: An automatic transmission is provided with a fluid transmission device connected to an engine 10, a clutch, a hydraulic servo C-1, a output rotational speed detecting means for detecting the output rotational speed of the fluid transmission device, a hydraulic pressure generating means for generating hydraulic pressure supplied to the hydraulic servo C-1 and a controller. The controller is provided with a pressurizing means 105 for boosting hydraulic pressure with a set characteristic, a changing rate detecting means 103 for detecting the rotational speed changing rate of the output rotational speed in a section set during the engaging of the clutch and a correcting means 104 for comparing the detected rotational speed changing rate with a reference rotational speed changing rate and correcting a characteristic. The changing rate detecting means 103 detects the rotational speed changing rate only when the output rotational speed at the time of starting the engagement of the clutch is higher than the maximum value of the output rotational speed in the set section by a set value.

25. 发明专利

JPH08261300A AUTOMATIC SPEED CHANGE GEAR FOR VEHICLE 失效
公开(公告)号：JPH08261300A
公开(公告)日：1996-10-08
申请号：JP9014495
申请日：1995-03-24
申请人： AISIN AW CO
发明人： MOROTO SHUZO , TANIGUCHI TAKAO , TSUKAMOTO KAZUMASA , NISHIDA MASAAKI , KASUYA SATORU , KATO AKITOSHI , SUGIURA NOBUTADA
IPC分类号： F16H3/62 , F16H3/66
摘要： PURPOSE: To accomplish the highest speed change stage having high efficiency as a large gear ratio width is secured by a compact formation in an automatic speed change gear for a five speed vehicle. CONSTITUTION: An automatic speed change gear T has a speed change gear M composed in five steps in advance consisting of two speeds on deceleration side and two speeds on acceleration side with a direct stage put between them. The speed change gear has a ring gear R1 connected to an output shaft 15; a carrier C1; a sun gear S1; a carrier C2 connected to the carrier C1; stepped pinion gears P1, P2 detachably supported by the above components; a sun gear S2 engaging with the pinion gear P2. The carrier C1 is connected to an input shaft 14 through a clutch (C-2), and the sun gear S1 is connected to the input shaft 14 through the clutch (C-1), and the sun gear S1, S2, S3 can be severally braked by brakes (B-OL) (B-OH) and (B-1). The highest speed stage is highly efficiently accomplished by the engagement of the sun gear S2 of the pinion gear P2 with the ring gear R1.

26. 发明专利

JPH08159263A OIL PRESSURE CONTROL DEVICE FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH08159263A
公开(公告)日：1996-06-21
申请号：JP32949494
申请日：1994-12-02
申请人： AISIN AW CO , TOYOTA MOTOR CORP
发明人： TSUKAMOTO KAZUMASA , ANDO MASAHIKO , FUKATSU AKIRA , MAE TOSHIYUKI , HAMASHIMA TETSUO , KAIGAWA MASATO , FUKUMURA KAGENORI , OBA HIDEHIRO , HOJO YASUO , TABATA ATSUSHI , TAKAHASHI NOBUAKI
IPC分类号： F16H61/06 , F16H61/00
摘要： PURPOSE: To improve precision on regulation of a feed pressure at the engagement process of a friction engagement element, to ensure maintenance of an oil pressure after achievement of engagement, and to prevent bleeding of a pressure at a release process. CONSTITUTION: A hydraulic control device comprises a friction engagement element B-3; a hydraulic servo 28; a feed discharge oil passage 201; a pressure regulating valve 25: and a signal generating means. The pressure regulating valve 25 comprises a valve body 250; an input port 254 coupled to an oil passage 201d; an output port 255 coupled to an oil passage 201e; and a discharge port 257. The valve body 250 comprises a pressure receiving surface A1 on which a feedback pressure is applied; a pressure receiving surface A2 on which a signal pressure (PSLU) is applied; and a pressure receiving surface A3 having size larger than that of the pressure receiving surface A2 . A signal pressure is always applied on the pressure receiving surface A3 by a signal pressure generating means and meanwhile, by selectively applying a signal pressure on the pressure receiving surface A2 , the output gain of the pressure regulating valve is varied.

27. 发明专利

JPH0874951A AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH0874951A
公开(公告)日：1996-03-19
申请号：JP23017994
申请日：1994-09-01
申请人： AISIN AW CO
发明人： TSUKAMOTO KAZUMASA , HAYABUCHI MASAHIRO , KASUYA SATORU
IPC分类号： F16H3/44 , F16H3/66
摘要： PURPOSE: To achieve multiple stages in an automatic transmission by means of a compact structure by adding an overdrive unit of the second speed. CONSTITUTION: A transmission is provided with an auxiliary transmission 2, which achieves the third speed forward stage including direct connection, and a main transmission 5, which inputs the output from the auxiliary transmission 2 and achieves the forth speed forward stage and the first speed backward stage. The auxiliary transmission 2 is provided with the first planet gear device 20 and the second planet gear device 20. A sun gear 24 is connected to a carrier 23 via a clutch CO, while a sun gear 33 is connected to an automatic transmission case 10 via a brake B01, and the sun gear 24 is connected to the automatic transmission case 10 via a brake B02. In the auxiliary transmission 2, overdrive rotation is achieved on the basis of the engagement of the brake 02, high drive rotation is achieved on the basis of the engagement of the brake B01, and a direct connecting condition is achieved on the basis of the engagement of the clutch C0.

28. 发明专利

JPH07301302A POWER TRANSMISSION DEVICE FOR VEHICLE 失效
公开(公告)号：JPH07301302A
公开(公告)日：1995-11-14
申请号：JP11167894
申请日：1994-04-28
申请人： AISIN AW CO
发明人： TSUKAMOTO KAZUMASA , MAEDA KOJI , SUGIURA NOBUTADA
IPC分类号： F16H3/08 , F16H3/00 , F16H3/089 , F16H47/06
摘要： PURPOSE:To maintain a fuel consumption equal to that of normal manual transmission by performing power transmission through fluid only at the time of starting of both forward and backward motion while requiring no difficult clutch connection operation. CONSTITUTION:A power transmission device for vehicle T comprises a clutch 10, a fluid coupling 20 consisting of a pump 21 and a turbine 22, and a speed change gear mechanism 30, and transmits power from an engine E to the drive system 40 of the vehicle through the fluid coupling 20 and the speed change gear mechanism 30. A first input shaft 31 connected to a gear train 311, 331 forming gear steps of the forward first speed and a gear train 31R, 34R, 33R forming backward gear steps of the speed change gear mechanism 30 is coupled to the turbine 22 of the fluid coupling 20, and a second input shaft 32 coupled to a gear train 322, 332, 323, 333, 324, 334, 325, 335 forming gear steps of more than the second speed is connected to the pump 21 of the fluid coupling 20.

29. 发明专利

JPH0783321A CONTROLLER OF AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH0783321A
公开(公告)日：1995-03-28
申请号：JP23204193
申请日：1993-09-17
申请人： AISIN AW CO
发明人： KANO TOSHIHIRO , TSUKAMOTO KAZUMASA , HAYABUCHI MASAHIRO , ANDO MASAHIKO
IPC分类号： F16H61/00 , F16H59/14 , F16H59/38 , F16H59/40 , F16H59/42 , F16H61/06
摘要： PURPOSE:To properly change speed under all driving conditions so as to always achieve the best speed characteristic. CONSTITUTION:The controller of an automatic transmission is provided with an input torque judging means 41 for judging input torque received in a transmission, an inertia torque estimation means 42 for estimating an inertia torque corresponding to variable speed of rotational speed of rotary member at the time of speed change, and input torque corrective means 43 for calculating necessary engaging torque by adding the inertia torque to the input torque, and an engaging pressure control means 44 for controlling the engaging pressure in response to necessary engaging toque. Since an engaging pressure corresponding to a necessary engaging torque is generated in a oil pressure servo 51, even if throttle opening and vehicle speed are to optional values, and speed changes take place step by step, additionally, speed changes are skipping ones, it becomes possible to generate an engaging pressure necessary for speed change can be generated in a hydraulic servo 51.

30. 发明专利

JPH0719325A SPEED CHANGE CONTROL DEVICE OF AUTOMATIC TRANSMISSION FOR VEHICLE 失效
公开(公告)号：JPH0719325A
公开(公告)日：1995-01-20
申请号：JP18912993
申请日：1993-06-30
申请人： TOYOTA MOTOR CORP , AISIN AW CO
发明人： TABATA ATSUSHI , ITO HIROSHI , HOJO YASUO , ANDO MASAHIKO , HAYABUCHI MASAHIRO , TSUKAMOTO KAZUMASA
IPC分类号： F16H61/00 , F16H61/10
摘要： PURPOSE:To provide a speed change control device of an automatic transmission for a vehicle not causing sudden increase of driving force beyond expectation of a driver. CONSTITUTION:When an actual gear step organized in an automatic transmission 14 is detected by a gear step detection means 90, by a down shift gear step judgement means 92 and in accordance with the actual gear step, a gear step to shift down is judged so that gear ratio changing amplitude does not exceed a specified value, and a speed change command signal to take the gear step judged by this down shift gear step judgement means 92 is output to the automatic transmission 14. Consequently, at the time of down shift, as a gear step to shift down is judged so that the gear ratio changing amplitude by the down shiftdoes not exceed the specified value, sudden increase of driving force of a vehicle beyond expectation of a driver is prevented, and favourable operability can be acquired.

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