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1. 发明专利

JP2002054724A AUTOMATIC TRANSMISSION WITH AUXILIARY HYDRAULIC UNIT 失效
公开(公告)号：JP2002054724A
公开(公告)日：2002-02-20
申请号：JP2000246275
申请日：2000-08-15
申请人： AISIN AW CO , TOYOTA MOTOR CORP
发明人： KOBAYASHI KEIZO , OZAKI KAZUHISA , MIURA YASUTOMO , MIYOSHI TOSHIYUKI , ENOMOTO KAZUTO , TAKEUCHI OSAMU , HOJO YASUO , TOMOMATSU HIDEO , TOMOHIRO TADASHI , MATSUBARA TORU
IPC分类号： F16H57/023 , F16H57/04 , F16H61/00 , F16H57/02
摘要： PROBLEM TO BE SOLVED: To provide an automatic transmission with an auxiliary hydraulic unit capable of connecting a hydraulic circuit in very simple constitution by disposing an auxiliary hydraulic unit in a position advantageous in assembling and space. SOLUTION: A motor-driven oil pump 12 is mounted on the outer peripheral part of an automatic transmission case 2, and connecting oil passages 13 and 15 are provided between the motor-driven oil pump 12 and an oil passage in the automatic transmission. The auxiliary hydraulic unit 12 is mounted on the outer peripheral part of the case 2, so that the automatic transmission and the auxiliary hydraulic unit are handled as one body. Accordingly, in assembling to a vehicle, the auxiliary hydraulic unit can be simply incorporated in the car body without surplus work such as mounting work.

2. 发明专利

JPH10184860A LUBRICATION MECHANISM FOR FRICTIONAL ENGAGEMENT ELEMENT 失效
公开(公告)号：JPH10184860A
公开(公告)日：1998-07-14
申请号：JP34502396
申请日：1996-12-25
申请人： AISIN AW CO , TOYOTA MOTOR CORP
发明人： TSUKAMOTO KAZUMASA , YOKOYAMA FUMITOMO , OZAKI KAZUHISA , IWASE MIKIO , KASUYA SATORU , TSUBOI HARUMICHI , MIYATA HIDEKI , FUKUMURA KAGENORI , NAKAWAKI YASUNORI , TABATA ATSUSHI , SAYO SHOICHI , HOJO YASUO
IPC分类号： F16H57/04
摘要： PROBLEM TO BE SOLVED: To surely carry out sufficient lubrication to an engagement element and to reduce machining man-hours. SOLUTION: A ring type side plate part 4a in a brake hub 4 is connected to the left end of an outer race 3. In the position, with which the left end of the outer race 3 is brought in to contact, in the ring type side plate 4a, a recess part 4c connecting the inner circumference side to the outer circumference side of the outer race 3 is formed. Therefore, in a rotary shaft 1 during its rotation, lubrication oil fed to the axial directional lubrication oil passage hole 1a in the rotary shaft 1 is let flow via a diameter directional lubrication oil passage hole 1b and a lubrication oil passage hole 2a by means of centrifugal oil pressure toward the inner circumference side of the outer race 3, and then, passes the recess part 4c and flows along the ring type side plate part 4a so as to be let flow toward friction plates 5, 7 via a lubrication oil passage hole 4e in a cylindrical part 4b in the brake hub 4. As the recess part 4c is formed in the ring type side plate part 4a, a lubrication passage area can be increased while welding is facilitated, and as a result, machining man-hours can be reduced.

3. 发明专利

JPH1019114A CONTROL DEVICE FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH1019114A
公开(公告)日：1998-01-23
申请号：JP18881796
申请日：1996-06-28
申请人： TOYOTA MOTOR CORP , AISIN AW CO
发明人： TABATA ATSUSHI , HOJO YASUO , ANDO MASAHIKO , YOKOYAMA FUMITOMO , OZAKI KAZUHISA , AZEYANAGI AKIHIRO , FUKATSU AKIRA
IPC分类号： F16H61/02 , F16H61/22
摘要： PROBLEM TO BE SOLVED: To prevent twisitng torque when a gear shifting is actuated to a P range from being accumulated, and delayed in response by controlling the releasing speed of a friction engaging device followed by gear shifting from a running range to a parking range P when engine revolutions are greater than a specified value in such a way as to be faster than that for engine revolutions less than the specified value. SOLUTION: In the electronic control device for an automatic transmission 10 to which the various kinds of data for control is inputted, it is judged whether or not a R range has been set, if it is found to have been set, subsequently, it is also judged whether or not engine revolutions are over a reference engine revolution, for example, 700rpm. And when it is found that engine revolutions are over 700rpm, and input torque is great, the back pressure of an accumulator for a second clutch is controlled so as to be low. This constitution thereby allows the torque capacity of the input clutch in the R range to be lowered, allows a torque transmitting route in the automatic transmission 1 to be temporarily in a neutral condition while a range is being changed from the R range to a parking P range, and thereby prevents twisting torque from remaining (being accumulated), and being delayed in response to the P range.

4. 发明专利

JPH09152031A CONTROLLER OF AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH09152031A
公开(公告)日：1997-06-10
申请号：JP33826995
申请日：1995-12-01
申请人： TOYOTA MOTOR CORP , AISIN AW CO
发明人： TABATA ATSUSHI , FUKUMURA KAGENORI , KUBO MASANORI , NAKAMURA HIROYA , TAKAHASHI NOBUAKI , HOJO YASUO , ANDO MASAHIKO , OZAKI KAZUHISA , YOKOYAMA FUMITOMO , AZEYANAGI AKIHIRO
IPC分类号： F16H63/34
摘要： PROBLEM TO BE SOLVED: To prevent shocks and rattling noises caused by the release of torsional torque accumulated as torsional deformations by controlling an automatic transmission. SOLUTION: This controller is designed to be capable of selecting a plurality of ranges including a parking range and to have a lock means for mechanically stopping the rotation of an output shaft if the parking range is selected. In this case, the controller includes frictional engagement devices B1, B4 which stop the rotation of the output shaft by engagement if the parking range is selected and a means 87 for slowly disengaging the frictional engagement devices B1, B4 if the parking range is shifted to another range.

5. 发明专利

JPH0979361A HYDRAULIC CONTROL DEVICE FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH0979361A
公开(公告)日：1997-03-25
申请号：JP25726895
申请日：1995-09-11
申请人： AISIN AW CO , TOYOTA MOTOR CORP
发明人： YOKOYAMA FUMITOMO , OZAKI KAZUHISA , FUKATSU AKIRA , MAE TOSHIYUKI , SAKAI MOTOYUKI , HIJIKATA MAKOTO , TAKAHASHI NOBUAKI , HAMASHIMA TETSUO , HOJO YASUO
IPC分类号： F16H61/00 , F16H61/04 , F16H63/02
摘要： PROBLEM TO BE SOLVED: To prevent inclination of a valve element without increasing the stem length of a valve and to improve responsiveness of a valve to a signal pressure. SOLUTION: A valve 25 is axially extended in such a state to surround the outer peripheral side of a spring 259, and comprises a guide part 252a to prevent inclination of a valve element 252 in such a way to make slide contact with a valve hole 32a; and a protrusion part 252b to improve pressure responsiveness by narrowing a signal pressure feed space in a valve chamber 33 protruding to the inner peripheral side of the spring 259. The protrusion part 252b has an axial length exceeding that of a guide part 252a. By making contact with the end face of the valve hole 32, the protrusion part is additionally functioned as a stopper to block the cutoff between a port 34 and the valve chamber 33 by the guide part 252a.

6. 发明专利

JPH08159262A OIL PRESSURE CONTROL DEVICE FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH08159262A
公开(公告)日：1996-06-21
申请号：JP32949394
申请日：1994-12-02
申请人： AISIN AW CO , TOYOTA MOTOR CORP
发明人： TSUKAMOTO KAZUMASA , ANDO MASAHIKO , FUKATSU AKIRA , MIKAMI TSUYOSHI , KAIGAWA MASATO , FUKUMURA KAGENORI , OBA HIDEHIRO , HOJO YASUO , TABATA ATSUSHI , TAKAHASHI NOBUAKI
IPC分类号： F16H61/00 , F16H61/06
摘要： PURPOSE: To feed an engaging pressure to a hydraulic servo, consisting of two friction engagement elements having different engaging pressures, with high pressure regulation precision by a single pressure regulating valve. CONSTITUTION: A hydraulic control device for an automatic transmission comprises a hydraulic source 10; hydraulic servoes 70 and 80; a signal pressure generating means 20, a pressure regulating valve 30 to regulate an oil pressure (PS) from an oil pressure source 10 by means of a signal pressure (PACC); and a switching valve 40. The pressure regulating valve 30 comprises a pressure receiving surface A1 on which a signal pressure is applied; a pressure receiving surface A2 which is positioned facing the aforesaid pressure receiving surface and feedback of an engaging pressure (PB) to which is executed; and a pressure receiving surface A3 to select whether feedback of an engaging pressure is effected to vary the control gain of the pressure regulating valve 30 according to switching of a switching valve 13 to select the hydraulic servoes 70 and 80 feeding to which is effected.

7. 发明专利

JPH07113461A AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH07113461A
公开(公告)日：1995-05-02
申请号：JP25796993
申请日：1993-10-15
申请人： AISIN AW CO , TOYOTA MOTOR CORP
发明人： INUZUKA TAKESHI , HATTORI MASASHI , KASUGA SHINJI , HOJO YASUO , IWATSUKI KUNIHIRO
IPC分类号： F16H61/00 , F16H61/02
摘要： PURPOSE:To shorten the necessary time for selecting the manual speed change mode and the automatic speed change mode. CONSTITUTION:An automatic transmission is equipped with a shift lever 71 for selecting the automatic speed change mode and the manual speed change mode, the first switch SW1 for detecting the shift by a set quantity in the first direction of the shift lever 71, and the second switch SW2 for detecting the shift by a set quantity in the second direction of the shift lever 71. A controller 31 is equipped with an automatic speed change mode restoration means 74 which makes a timer for the restoration of the automatic speed change mode start and restores the automatic speed change mode, when both the first and the second switches SW1 and SW2 do not detect the shift by the set quantity of the shift lever 71.

8. 发明专利

JPH0771591A HYDRAULIC CONTROL CIRCUIT OF AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH0771591A
公开(公告)日：1995-03-17
申请号：JP22188993
申请日：1993-09-07
申请人： TOYOTA MOTOR CORP , AISIN AW CO
发明人： ASAHARA NORIKI , FUKUMURA KAGENORI , HOJO YASUO , OZAKI KAZUHISA
IPC分类号： F16H59/46 , F16H61/00 , F16H61/02 , F16H61/04 , F16H61/06 , F16H61/14 , F16H61/686
摘要： PURPOSE:To provide a hydraulic control circuit capable of carrying out slip control of a lock up clutch by a single linear solenoid valve and transient hydraulic control of a frictional engagement means at the time of speed change and shift lever operation and capable of starting the transient hydraulic control while engaging the lock up clutch at the time of up-shift under the lock up clutch engagement condition. CONSTITUTION:A signal hydraulic relay valve 100 the first output port 106 of which is connected to a lock up control valve and a second output port 110 of which is connected to an accumulator control valve is switched over by first relay hydraulic pressure PR1 and second rely hydraulic pressure PR2. Consequently, a valve to be supplied with signal hydraulic pressure Psl governed by a linear solenoid valve 84 is selectively switched over, and at the time of supplying it to the accumulator control valve, modulator hydraulic pressure Pm is supplied to the lock up control valve.

9. 发明专利

JPH0740772A SPEED CHANGE CONTROL DEVICE FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH0740772A
公开(公告)日：1995-02-10
申请号：JP20451693
申请日：1993-07-27
申请人： TOYOTA MOTOR CORP , AISIN AW CO
发明人： TABATA ATSUSHI , OBA HIDEHIRO , HOJO YASUO , KIMURA HIROMICHI , KAIGAWA MASATO , HAMASHIMA TETSUO , FUKATSU AKIRA , ANDO MASAHIKO , YAMAMOTO YOSHIHISA
IPC分类号： B60W10/04 , B60W10/02 , B60W10/06 , B60W10/10 , B60W10/11 , F16H61/04 , F16H61/12 , F16H61/18 , F16H63/50 , B60K41/06
摘要： PURPOSE:To prevent a friction engaging means from juddering when a reverse range is selected by providing the speed change control device with a reverse step detection means detecting a reverse step command, an engine output increasing means increasing an engine output when the reverse step command is directed, and with a high speed step directing means switching an auxiliary transmission section over to high speed steps. CONSTITUTION:The speed change control device is provided with a reverse step detection means 3 detecting that a reverse step has been directed, an engine output increasing means 4 increasing an engine output when a reverse step is directed, and with a high speed step directing means 5 switching an auxiliary transmission section 1 over to high speed steps. When a reverse step is directed, it is detected by the reverse step detection means 5, and the engine output increasing means 4 allows the output of an engine E to be concurrently increased. And at the time when the output of the engine is equal to or more than a specified output, the auxiliary transmission section 1 is switched over to high speed steps by the high speed step directing means 5. Therefore even if a reverse step is directed in an advancing condition, torque trying to reversely rotate the output shaft of the auxiliary transmission section, is small, so that juddering will never take place.

10. 发明专利

JPH0727221A AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH0727221A
公开(公告)日：1995-01-27
申请号：JP17022893
申请日：1993-07-09
申请人： AISIN AW CO , TOYOTA MOTOR CORP
发明人： INUZUKA TAKESHI , HATTORI MASASHI , HOJO YASUO , TABATA ATSUSHI , KAIGAWA MASATO
IPC分类号： F16H61/16
摘要： PURPOSE:To suppress generation of transient lock at driving wheels when down- shifting transmission is performed by manual transmission. CONSTITUTION:A shift operation means 71 and a vehicle speed sensor 72 are provided for selecting a speed. After selecting a speed, a control device 31 performs transmission judgment and generates a transmission output. A hydraulic circuit 74 is provided, and respective speeds are attained by operating a solenoid valve corresponding to the transmission output. A transmission diagram 85 is formed for manual transmission, while a transient lock generation condition detection means 84 is provided for detecting a condition where transient lock is generated at driving wheels. In order to perform down-shifting transmission and execute engine braking under the condition that transient lock is apt to occur, a down-shifting prohibition area in the transmission diagram 85 is enlarged and a down-shifting allowable speed is set low.

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