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1. 发明专利

JP2010202099A Parking lock device 审中-公开
标题翻译：停车设备
公开(公告)号：JP2010202099A
公开(公告)日：2010-09-16
申请号：JP2009051661
申请日：2009-03-05
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： YASUNAKA SATOSHI , TAKAHASHI NOBUAKI
IPC分类号： B60T1/06 , F16H63/34
摘要： PROBLEM TO BE SOLVED: To suppress any tooth skipping phenomenon of a parking gear occurring when a vehicle is on slope or the like in a parking lock device of the vehicle.
SOLUTION: A parking lock device has a parking pole 18 which is engaged with a parking gear to lock it. The parking pole 18 is pressed by a cam 22, and moved to the engagement position to be engaged with the parking gear from the evacuation position. An oil discharging groove 44 is formed in a surface of the cam 22. When the parking pole is subjected to an impact force from the parking gear, oil between contact surfaces of the parking pole and the parking gear is rapidly discharged through the oil discharging groove. Thus, the squeeze effect that the friction is reduced by the oil remaining between the contact surfaces is suppressed, and the parking pole 18 is reliably held at the engagement position.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了抑制当车辆在车辆的停车锁定装置中的斜坡等时发生的驻车档的任何跳齿现象。解决方案：停车锁定装置具有与停车装置接合以锁定的驻车杆18。停车杆18被凸轮22按压，并且移动到接合位置以与撤离位置与驻车档啮合。排油槽44形成在凸轮22的表面上。当驻车杆受到来自驻车齿轮的冲击力的影响时，驻车杆的接触面和驻车齿轮之间的油通过排油槽快速排出。因此，抑制了通过在接触面之间残留的油减少摩擦的挤压效果，并且将停车杆18可靠地保持在接合位置。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2010007834A Control device and control method for continuously variable transmission 审中-公开
标题翻译：用于连续变速传动的控制装置和控制方法
公开(公告)号：JP2010007834A
公开(公告)日：2010-01-14
申请号：JP2008171018
申请日：2008-06-30
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAKAHASHI NOBUAKI , YAMAMOTO HIRONOBU
IPC分类号： F16H61/04 , F16H59/44 , F16H59/54 , F16H59/72 , F16H61/662
摘要： PROBLEM TO BE SOLVED: To achieve both suppression of belt slip during gear shift and suppression of reduction in shifting speed without complicating the structure of a continuously variable transmission in a belt-type continuously variable transmission. SOLUTION: An ECU determines whether or not the hydraulic fluid temperature T (C) of the belt-type continuously variable transmission is lower than a threshold (S106) when a vehicle is braked (YES in S102) and is in sudden braking (YES in S104), estimates that there is possibility of an air suction condition when the hydraulic fluid temperature T (C) is lower than the threshold (YES in S106), and sets a target gear ratio to a constant value γ(1) until a predetermined time T elapses from start of gear shift (NO in S108, S110). After lapse of the predetermined time T, the target gear ratio is set to a gear ratio γmax on the most speed reduced side (S112). The constant value γ(1) is set to γ(0) COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了在变速期间抑制皮带打滑和抑制换档速度的降低，而不会使带式无级变速器中的无级变速器的结构复杂化。解决方案：ECU确定带式无级变速器的液压油温度T（℃）是否低于车辆制动时的阈值（S106）（S102中为“是”），并且处于突然制动（S104中为“是”），估计当液压流体温度T（℃）低于阈值时（S106为“是”）时可能存在吸气条件，并将目标齿轮比设定为常数值γ（1）直到从变速开始经过了预定时间T（S108中为“否”，S110）。在经过预定时间T之后，将目标齿轮比设定为最大减速侧的齿轮比γmax（S112）。恒定值γ（1）设定为γ（0）<γ（1）<γmax，其中γ（0）表示开始降档时的齿轮比。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JPH1137269A HYDRAULIC PRESSURE CONTROL DEVICE OF AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH1137269A
公开(公告)日：1999-02-12
申请号：JP20975297
申请日：1997-07-18
申请人： TOYOTA MOTOR CORP
发明人： TAKAHASHI NOBUAKI , NAKAMURA HIROYA , FUKUMURA KAGENORI
IPC分类号： F16H61/06
摘要： PROBLEM TO BE SOLVED: To prevent shock and delay of speed change at the shift time from a backward step by changing the speed of an exhaust pressure from either friction engagement device, in which the backward step is set, in response to the detection result of a brake detection means, in the case switched from a reverse range to other range. SOLUTION: During vehicular running, whether an automatic speed change control computer is shifted from a reverse range to other range, for example, a neutral range is judged. When YES is judged, whether a brake is turned ON is judged and in the case of no brake state, a big drain is selected. A fourth brake B4 is communicated with a drain 80 through 1-2 shift valve and exhausted a pressure through the passage with the smallest pipe passage resistance and the fourth brake B4 is exhausted the pressure rapidly. Thereby, the switching from a backward step state to a neutral state is carried out quickly. While, at the brake time, the big drain is selected alike when an oil temperature is lower than a prescribed standard temperature.

4. 发明专利

JPH1137257A SHIFT CONTROLLER OF AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH1137257A
公开(公告)日：1999-02-12
申请号：JP21254797
申请日：1997-07-23
申请人： TOYOTA MOTOR CORP
发明人： NOZAKI YOSHINOBU , NAKAMURA HIROYA , FUKUMURA KAGENORI , KONDO MASAMITSU , TAKAHASHI NOBUAKI
IPC分类号： B60W10/04 , B60W10/06 , B60W10/10 , B60W10/11 , F02D29/00 , F16H59/68 , F16H61/08 , F16H63/50 , B60K41/06
摘要： PROBLEM TO BE SOLVED: To accurately judge the start of an inertia phase even when over-shoot is generated in shifting in an automatic transmission. SOLUTION: A shift controller of an automatic transmission, for performing specified control with the judgment of the start of an inertia phase in shifting is provided with an over-shoot detecting means (a step 21) for detecting that the input revolution in shifting is increased to the revolution larger than the synchronous revolution the shift stage before shifting, and an inertia phase shaft judging means (steps 22, 23) for judging the start of the inertia phase when the lowering state of the input revolution after the increase satisfies the preset conditions when the over-shoot detecting means detects that the input revolution is increased to the revolution larger than the synchronous revolution before shifting.

5. 发明专利

JPH09296861A CONTROLLER OF AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH09296861A
公开(公告)日：1997-11-18
申请号：JP13577296
申请日：1996-05-02
申请人： TOYOTA MOTOR CORP
发明人： TAKAHASHI NOBUAKI , MIKAMI TSUYOSHI , OISHI TOSHIYA , NAKAMURA HIROYA
IPC分类号： F16H61/06 , F16H61/08
摘要： PROBLEM TO BE SOLVED: To reduce a shift shock by setting the torque capacity of a friction engager being related to the shift, thereby engaging an overlap control means with it, and lowering the torque capacity of a high speed side friction engager along with a shift progress. SOLUTION: In time of gear shifting, an engine electronic control unit compares a car speed at a point of time when a shift judgment is materialized, with a reference speed. In brief, it is compared with the reference speed with a rotational speed corresponding to the speed of an automatic transmission, and when it is less than the reference speed, low speed time control takes place. That is, a sweep-down condition is set up, and a duty ratio of a linear solenoid valve SLN is made gradually heightened by a fixed value at each prescribed time. With this, hydraulic pressure in a second brake B2 in time of a down-shift ranging from third to second is maintained at high pressure from the start of shifting by way of maintaining the back pressure of an accumulator 121 at the high pressure. Consequently the brakes B2 and B3 have the prescribed torque capacity, whereby overlap shift control is carried out. Thus any shift shock is checked.

6. 发明专利

JPH09280355A GEAR SHIFT CONTROL DEVICE FOR AUTOMATIC TRANSMISSION FOR VEHICLE 失效
公开(公告)号：JPH09280355A
公开(公告)日：1997-10-28
申请号：JP8976396
申请日：1996-04-11
申请人： TOYOTA MOTOR CORP
发明人： TAKAHASHI NOBUAKI , NAKAMURA HIROYA
IPC分类号： F16H61/04
摘要： PROBLEM TO BE SOLVED: To provide high responsiveness to engaging operation by a method wherein, prior to a shift from first speed to a second speed, an engagement pressure regulation valve is caused to wait in a given operation position. SOLUTION: The engagement pressure of a brake B3 forms a front body range pressure being a maximum value. When in a gear shift of 1→2, the engagement pressure of the brake B3 is controlled through a prescribed procedure, coping with a transmission hydraulic pressure control means 160 is effected. Prior to 1→2 gear shift from a first speed stage to a second speed stage, the spool valve element of a B3 control valve 92 is caused to wait in a given operation position by a means 162 to wait before an engagement pressure regulation valve shift. A control pressure for a shift is fed to the B3 control valve 92 and when pressure regulation operation is started, the spool valve element waits in a given operation position. This constitution provides high responsiveness to engagement operation of a hydraulic friction engaging device.

7. 发明专利

JPH09273624A OIL PRESSURE CONTROL VALVE 失效
公开(公告)号：JPH09273624A
公开(公告)日：1997-10-21
申请号：JP11019996
申请日：1996-04-05
申请人： TOYOTA MOTOR CORP
发明人： TAKAHASHI NOBUAKI , HAMASHIMA TETSUO , KAIGAWA MASATO , NAKAMURA HIROYA
IPC分类号： F16H61/00 , F16H63/02
摘要： PROBLEM TO BE SOLVED: To provide an oil pressure control valve for an automatic transmission, capable of controlling oil pressure of a frictional engaging device on the releasing side by preventing outside disturbance based on the flowing resistance of oil pressure to be supplied to a frictional engaging device on the engaging side. SOLUTION: In an oil pressure control valve for adjusting releasing pressure PB3 of a frictional engaging device B3 on the releasing side by taking engaging pressure PB2 of a frictional engaging device B2 on the engaging side in the specified speed change by an automatic transmission as a signal pressure, a spring 6 for maintaining an adjusting value constant when the engaging pressure PB2 of the frictional engaging device B2 on the engaging side is not more than preset pressure and for changing the adjusting value according to the engaging pressure PB2 when the engaging pressure PB2 exceeds preset pressure.

8. 发明专利

JPH09229177A CONTROL DEVICE OF AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH09229177A
公开(公告)日：1997-09-02
申请号：JP6716996
申请日：1996-02-28
申请人： TOYOTA MOTOR CORP
发明人： TABATA ATSUSHI , TAKAHASHI NOBUAKI , MIKAMI TSUYOSHI
IPC分类号： B60W10/04 , B60W10/02 , B60W10/08 , B60W10/10 , B60W10/11 , B60W10/18 , B60W10/184 , F02D29/00 , F16H61/04 , B60K41/06
摘要： PROBLEM TO BE SOLVED: To prevent shock at down-shifting to be made in synchronization with the engine speed. SOLUTION: A control device concerned is for automatic transmission to perform the clutch-to-clutch shifting and the equal speed shifting and equipped with a shift judging means to judge the clutch-to-clutch shifting (Step 11) and a revolving speed control judging means to judge execution of the control to raise the revolving speed of a drive motive (Step 12) at the time of shifting judged by the shift judging means. The arrangement further includes pressure rice control means to alter the controlling contents (Steps 15 and 18) of increasing temporarily the engaging pressure of a disengage side frictional engagement device at the ending time of shifting in accordance with existence of the incremental control of the revolving speed of the drive motive to be judged by the revolving speed control judging means.

9. 发明专利

JPH09144872A CONTROL DEVICE FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH09144872A
公开(公告)日：1997-06-03
申请号：JP32797195
申请日：1995-11-22
申请人： TOYOTA MOTOR CORP
发明人： TABATA ATSUSHI , KAIGAWA MASATO , TAKAHASHI NOBUAKI
IPC分类号： B60W10/04 , B60W10/02 , B60W10/06 , B60W10/10 , B60W10/11 , B60W10/30 , F02D29/00 , F16H59/14 , F16H59/36 , F16H59/68 , F16H59/78 , F16H61/00 , F16H61/06 , F16H61/12 , F16H63/50 , B60K41/10
摘要： PROBLEM TO BE SOLVED: To set oil pressure adapted to input torque to improve the durability of a friction engaging device. SOLUTION: An input torque to an automatic transmission is estimated by plural input torque estimating means (steps 8, 9, and 9-1), to decide engaging pressure by a first engaging pressure deciding means based on input torque estimated by any input torque estimating means (step 8). In the case, wherein the abnomality of an input torque estimated value by any input torque estimating means (step 8) is judged by this abnormality judging means (steps 2-6), engaging pressure is decided by a second engaging pressure deciding means (steps 9 and 9-1) based on input torque estimated by the other input torque estimating means (steps 9 and 9-1).

10. 发明专利

JPH0942434A SPEED CHANGE CONTROL DEVICE OF AUTOMATIC TRANSMISSION FOR VEHICLE 失效
公开(公告)号：JPH0942434A
公开(公告)日：1997-02-14
申请号：JP19172595
申请日：1995-07-27
申请人： TOYOTA MOTOR CORP
发明人： TAKAHASHI NOBUAKI , HAMASHIMA TETSUO
IPC分类号： F16H61/06 , F16H61/02
摘要： PROBLEM TO BE SOLVED: To restrain generation of a speed change shock by holding the lowest value of control pressure supplied to a pressure regulating valve by a previously set setting value higher than the lowest limit value of its variable range within the time interval of transmissions to release a hydraulic frictional engagement device by a control pressure holding means. SOLUTION: A B3 control valve 92 as a pressure regulating valve to directly regulating pressure of a brake B3 provided with no accumulator, it is provided cocentrically with a spool valve element 104 by sandwiching the spool valve element 104 to open and close a passage between oil passages L01, L02 and a spring 106 and stores a plumger 108 a diameter of which is larger than the spool valve element 104 and the spring 106. Additionally, it is furnished with an oil chamber 110 to receive forward range pressure output from a third speed side when a 2-3 shift valve is changed over to the third speed side and an oil chamber 112 provided on a shaft end of the plunger 108 and to receive control pressure from a linear solenoid valve.

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