公开(公告)号：US06599215B2

公开(公告)日：2003-07-29

申请号：US10042233

申请日：2002-01-11

申请人： Kazuhiro Takatori ,  Osamu Sato ,  Tatsuya Imamura ,  Yasushi Fujita ,  Kazuo Tomioka ,  Kazuhito Sano

发明人： Kazuhiro Takatori ,  Osamu Sato ,  Tatsuya Imamura ,  Yasushi Fujita ,  Kazuo Tomioka ,  Kazuhito Sano

IPC分类号： F16H4708

CPC分类号： F16H63/3026 ,  F16H3/66 ,  F16H61/061 ,  F16H61/686 ,  Y10T477/693 ,  Y10T477/6939

摘要： A control system for controlling operation of a pre-charge system of an automatic transmission. The control system comprises a first section which receives first and second gear change instructions which are issued in succession. The first and second gear change instructions are of a type of needing an engaged condition of a same friction element. The control system further comprises a second section which, when the second gear change instruction is issued during a pre-charge period of the friction element which is needed by the first gear change instruction, extends the pre-charge period of the friction element to a time when a pre-charge period needed by the second gear change instruction lapses.

公开(公告)号：US06669593B2

公开(公告)日：2003-12-30

申请号：US10050534

申请日：2002-01-18

申请人： Kazuhiro Takatori ,  Osamu Sato ,  Tatsuya Imamura ,  Yasushi Fujita ,  Kazuo Tomioka ,  Kazuhito Sano

发明人： Kazuhiro Takatori ,  Osamu Sato ,  Tatsuya Imamura ,  Yasushi Fujita ,  Kazuo Tomioka ,  Kazuhito Sano

IPC分类号： F16H3100

CPC分类号： F16H61/061 ,  F16H59/38 ,  F16H59/72

摘要： A hydraulic control system controls a hydraulic pressure as a standby pressure in a period from an engagement start point at which an engagement instruction for engaging a friction element is started to an abutment start point at which an abutment between an input element and an output element is started. The hydraulic pressure supplied to at least one friction element is so increased as to switch the friction element from a disengagement state to an engagement state, thus transmitting a revolution of the input element of the friction element to the output element of the friction element. The hydraulic control system includes: a speed sensor for sensing a speed of the friction element; and a standby pressure increase section for increasing the standby pressure in accordance with the speed of the friction element sensed with the speed sensor.

公开(公告)号：US06743150B2

公开(公告)日：2004-06-01

申请号：US10120850

申请日：2002-04-10

申请人： Kazuhiro Takatori ,  Osamu Sato ,  Tatsuya Imamura ,  Yasushi Fujita ,  Kazuhito Sano ,  Kazuo Tomioka

发明人： Kazuhiro Takatori ,  Osamu Sato ,  Tatsuya Imamura ,  Yasushi Fujita ,  Kazuhito Sano ,  Kazuo Tomioka

IPC分类号： B60K4122

CPC分类号： F16H61/143 ,  F16H2059/183 ,  F16H2059/467 ,  F16H2061/145 ,  Y10S477/905 ,  Y10T477/633 ,  Y10T477/755

摘要： A lock-up control device for a lock-up torque converter of an automatic transmission is provided which starts measuring an elapsed time when the throttle opening exceeds a first predetermined value due to depression of an accelerator pedal during lock-up clutch slip control. When the throttle opening exceeds a second predetermined value due to sudden depression of the accelerator pedal prior to the elapse of a determination time, a transmission controller terminates the lock-up clutch slip control. After a rapid increase, the slip amount starts decreasing upon termination of the lock-up clutch slip control. Therefore, the temperature of a facing stops rising when the lock-up clutch slip control is terminated, and this improves the durability of the facing. The lock-up clutch slip control is re-started when the throttle opening is reduced to a predetermined value, and this maintains the excellent fuel economy performance.

摘要翻译： 提供一种用于自动变速器的锁止力矩转换器的锁定控制装置，其开启测量在锁止离合器打滑控制期间由于加速踏板的下压而节流阀开度超过第一预定值的经过时间。 当在经过确定时间之后由于加速踏板的突然下降而节流阀开度超过第二预定值时，变速器控制器终止锁止离合器打滑控制。 在快速增加之后，在锁止离合器打滑控制结束时，滑移量开始减小。 因此，当锁止离合器打滑控制终止时，面部的温度停止上升，这提高了面部的耐久性。 当节气门开度降低到预定值时，锁止离合器滑差控制被重新启动，这保持了优异的燃料经济性能。

公开(公告)号：US06689018B2

公开(公告)日：2004-02-10

申请号：US10118525

申请日：2002-04-08

申请人： Tatsuya Imamura ,  Osamu Sato ,  Kazuhiro Takatori ,  Yasushi Fujita ,  Kazuhito Sano ,  Kazuo Tomioka

发明人： Tatsuya Imamura ,  Osamu Sato ,  Kazuhiro Takatori ,  Yasushi Fujita ,  Kazuhito Sano ,  Kazuo Tomioka

IPC分类号： F16H6126

CPC分类号： F16H61/061 ,  F16H59/141 ,  F16H59/24 ,  F16H2059/183 ,  F16H2061/0078 ,  F16H2306/00 ,  Y10T477/6939

摘要： An automatic transmission has a gear transmission mechanism with engaging devices. Up-shifting is achieved with oil pressure, which is controlled with an open control component, a gradient of which is determined based on input torque, and a feedback control component, which is based on a target gear ratio. To prevent shock during an up-shift caused by releasing the accelerator, the feedback control component is set to zero when the amount of change in the throttle opening is equal to or greater than a predetermined threshold value. As a result of inhibiting increase in feedback to make up for a tendency for oil pressure depending on an open control component to decrease as a result of the throttle opening reducing and input torque falling, increase of the oil pressure command value becomes smooth. Peaks of the output torque are therefore suppressed.

摘要翻译： 自动变速器具有带啮合装置的齿轮传动机构。 利用油压进行升档，该油压由基于输入转矩确定的开度控制部件控制，其基于目标齿轮比的反馈控制部件。 为了防止由释放加速器引起的上变速时的冲击，当节气门开度的变化量等于或大于预定阈值时，反馈控制部件被设定为零。 作为由于节气门开度减小和输入转矩下降而导致根据打开控制部件而减小的反馈倾向增加的结果，油压指令值的增加变得平滑。 因此抑制输出转矩的峰值。

公开(公告)号：US06637566B2

公开(公告)日：2003-10-28

申请号：US10121023

申请日：2002-04-11

申请人： Kazuhiro Takatori ,  Osamu Sato ,  Tatsuya Imamura ,  Yasushi Fujita ,  Kazuhito Sano ,  Kazuo Tomioka

发明人： Kazuhiro Takatori ,  Osamu Sato ,  Tatsuya Imamura ,  Yasushi Fujita ,  Kazuhito Sano ,  Kazuo Tomioka

IPC分类号： F16D6114

CPC分类号： F16H61/143 ,  F16H2059/186 ,  F16H2061/0087 ,  F16H2061/145 ,  Y10T477/63525 ,  Y10T477/735 ,  Y10T477/755

摘要： An initial command oil pressure of a lock-up control of coasting lock-up region is set by using a lock-up learning correction amount calculated by a learning control in a lockup control of the other of the plurality of lock-up regions such as slip lock-up region and complete lock-up region when one of the lock-up control of these other lock-up regions is performed before the lock-up control of the coasting lock-up region. Thus, a lock-up learning correction amount can be commonly used among three kinds of lock-up regions, and a lock-up as set is early realized in each lock-up region.

公开(公告)号：US06625532B2

公开(公告)日：2003-09-23

申请号：US10055950

申请日：2002-01-28

申请人： Kazuhiro Takatori ,  Osamu Sato ,  Tatsuya Imamura ,  Yasushi Fujita ,  Kazuo Tomioka ,  Kazuhito Sano

发明人： Kazuhiro Takatori ,  Osamu Sato ,  Tatsuya Imamura ,  Yasushi Fujita ,  Kazuo Tomioka ,  Kazuhito Sano

IPC分类号： G06F700

CPC分类号： F16H61/061 ,  F16H2061/0258 ,  Y10T477/60 ,  Y10T477/624

摘要： In solenoid control method and apparatus for an automatic transmission, a current signal varied in a stepwise manner is caused to pass through a filter having a predetermined transfer function, the current signal being inputted to a solenoid to drive a control valve by which a working oil pressure on at least one frictional element of the automatic transmission is controlled by reducing the working oil pressure to release the frictional element and the filter passed current signal is inputted to the solenoid to drive the control valve. The solenoid control method and apparatus described above are applicable to a change-over shift operation.

公开(公告)号：US06519521B2

公开(公告)日：2003-02-11

申请号：US10040274

申请日：2002-01-04

申请人： Kazuhiro Takatori ,  Osamu Sato ,  Yasushi Fujita ,  Tatsuya Imamura

发明人： Kazuhiro Takatori ,  Osamu Sato ,  Yasushi Fujita ,  Tatsuya Imamura

IPC分类号： G06F1702

CPC分类号： F16H61/061 ,  F16H61/686 ,  F16H2306/24

摘要： In an automatic transmission performing change-over of a first engaging element and a second engaging element between two gear positions, for example between the fourth gear and the fifth gear, an oil pressure command value A to one of these two engaging elements is retained as a current value “a” and an oil pressure command value B to the other of these two engaging elements is retained as a current value “b” and at the same time the calculation of a calculation value of a downshift form the fifth gear is started when a target gear position changes to the fourth gear or lower during upshift between the two gear positions. When downshift calculation values Ad, Bd reach the retained values “a”, “b”, the oil pressure command values A, B are switched to the downshift calculation values. Thereby, a timing for performing the change-over of respective engaging elements is properly achieved, and a downshift to the fourth gear can be promptly performed before the upshift is not finished, and shift shock and engine racing can be prevented.

公开(公告)号：US06659912B2

公开(公告)日：2003-12-09

申请号：US10040302

申请日：2002-01-03

申请人： Kazuhiro Takatori ,  Osamu Sato ,  Yasushi Fujita ,  Tatsuya Imamura

发明人： Kazuhiro Takatori ,  Osamu Sato ,  Yasushi Fujita ,  Tatsuya Imamura

IPC分类号： F16H6106

CPC分类号： F16H61/061 ,  F16H59/24 ,  F16H59/72 ,  F16H2059/366 ,  F16H2059/385 ,  F16H2061/062 ,  Y10T477/65 ,  Y10T477/653 ,  Y10T477/6895 ,  Y10T477/6939

摘要： When a transmission selector lever is operated from P or N range to D range, an input clutch to be engaged at the fifth gear position is temporally engaged to reduce shift shock when the engaging element for the first gear position is engaged. An oil pressure command value for actuating the input clutch is increased with a constant inclination from a start point oil pressure value, and the start point oil pressure value is lowered when the engine speed is low or when an oil temperature is high. Even if a timing of completion of filling of working fluid to the input clutch is fluctuated, the difference between the actual oil pressure and the oil pressure command value is suppressed to a small level and the occurrence of shock due to surge at the time of the filling completion is prevented.

摘要翻译： 当换档杆从P或N到D的范围工作时，在第五档位被接合的输入离合器暂时接合，以减小当第一档位的接合元件接合时的换档冲击。 用于致动输入离合器的油压指令值以起动油压值恒定的倾斜度增加，并且当发动机转速低或油温高时起动油压值降低。 即使工作流体对输入离合器的填充完成的时刻发生波动，实际油压与油压指令值之间的差被抑制到一个较小的水平，并且由于在 防止填充完成。

公开(公告)号：US06584394B2

公开(公告)日：2003-06-24

申请号：US10040273

申请日：2002-01-04

申请人： Kazuhiro Takatori ,  Osamu Sato ,  Yasushi Fujita ,  Tatsuya Imamura ,  Toshihide Fukasawa

发明人： Kazuhiro Takatori ,  Osamu Sato ,  Yasushi Fujita ,  Tatsuya Imamura ,  Toshihide Fukasawa

IPC分类号： F16H6102

CPC分类号： F16H61/08 ,  F16H59/14 ,  F16H59/44 ,  F16H59/72 ,  F16H61/061 ,  F16H2061/0087 ,  F16H2061/062

摘要： A standby phase target time is determined with reference to a table according to a read engine load and vehicle speed. A standby phase real time is then measured, and a learning correction value is calculated and stored. In a next shifting operation, a value that is found by adding the learning correction value to a hydraulic pressure command value in the previous shifting operation is used as a new hydraulic pressure command value. This learning correction is performed in small regions where the vehicle speed increases with the throttle opening being substantially constant. This accurately compensates a change in characteristics of a hydraulic system without being affected by a rapid change in torque or the like.

公开(公告)号：US06692408B2

公开(公告)日：2004-02-17

申请号：US10244057

申请日：2002-09-13

申请人： Osamu Sato ,  Tatsuya Imamura ,  Toshihide Fukasawa ,  Kazuhiro Takatori

发明人： Osamu Sato ,  Tatsuya Imamura ,  Toshihide Fukasawa ,  Kazuhiro Takatori

IPC分类号： F16H6110

CPC分类号： F16H61/08 ,  F16H59/0204 ,  F16H61/16 ,  F16H2059/006 ,  F16H2306/24 ,  Y10T74/19251 ,  Y10T477/693 ,  Y10T477/693625

摘要： A shift control system for an automatic transmission having an automatic shift mode in which a proper gear ratio is automatically selected according to a shift command based on a throttle valve opening and a vehicle speed, and further having a manual shift mode in which a gear ratio is selected according to a shift command given by driver's manual operation. The shift control system includes timer means for counting an elapsed time after a shift operation has been started. The elapsed time is compared with a predetermined first re-shift permission time in the case of automatic shift operation and with a predetermined second re-shift permission time in the case of manual shift operation. The first re-shift permission time and the second re-shift permission time are different from each other to optimize the shift control both in the automatic shift mode and in the manual shift mode.

摘要翻译： 一种自动变速器的变速控制系统，具有自动变速模式，其中根据基于节气门开度和车速的变速指令自动选择适当的变速比，并且还具有手动换档模式，其中齿轮比 根据驾驶员手动操作给出的班次指令进行选择。 变速控制系统包括用于对变速操作开始之后的经过时间进行计数的计时装置。 在自动换档操作的情况下，将经过的时间与预定的第一重新换挡允许时间进行比较，并且在手动换档操作的情况下与预定的第二重新换挡允许时间进行比较。 第一重新移位许可时间和第二重新移位许可时间彼此不同，以便在自动换档模式和手动换挡模式下优化换档控制。