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公开(公告)号：JPS6458838A
公开(公告)日：1989-03-06
申请号：JP21465587
申请日：1987-08-28
Applicant: TOYOTA MOTOR CORP
Inventor： USHIJIMA FUMIHIRO , NUMAZAWA AKIO , ASADA TOSHIYUKI
IPC: F16H3/66
Abstract: PURPOSE:To secure such speeds of forward five-speed and backward one-speed that a gear ratio of the maximum speed is 1, by performing a speed change in making three sets of planetary gear mechanisms act on organically through first-third clutches and first and second brakes. CONSTITUTION:An input shaft 60 is connected to a ring gear 32, a carrier 34 and a sun gear 31 of a first planetary gear mechanism 30 via clutches C1-C3 and also connected to a sun gear 41 of a second planetary gear mechanism 40 via the clutch C3, respectively. And, a carrier 54 of a third planetary gear mechanism 50 is connected to an output shaft 80, and they are organically combined together by each selective actuation of these clutches C1-C3 and brakes B1 and B2. First gear speed is secured by actuation of C1 and B1, second gear speed by C2 and B1, third gear speed by C1 and B2, fourth gear speed by C2 and B2, fifth gear speed of a gear ratio 1 by C2 and C3, and backward speeds by C3 and B1, respectively. Thus, a range of the gear ratio is extendible and, what is more, the transmission efficiency of power is improvable.
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公开(公告)号：JPS63145138A
公开(公告)日：1988-06-17
申请号：JP29128886
申请日：1986-12-06
Applicant: TOYOTA MOTOR CORP
Inventor： HAYASHI TAKASHI , NUMAZAWA AKIO , NAKAWAKI YASUNORI
IPC: B60W10/04 , B60W10/02 , B60W10/06 , B60W10/10 , B60W10/101
Abstract: PURPOSE:To make speeds shiftable to the specified stepped one at the time of stepped shifting as well as to make quick acceleration performable at times of starting and reacceleration, by making a continuously variable transmission freely shiftable to each mode of stepless shifting and stepped shifting, and controlling it to go along a minimum fuel consumption rate curve at the time of the stepless shifting. CONSTITUTION:A mode selective operating device 68 is installed in a continuously variable speed controller provided with a V-pulley and an endless belt, making it free of selectively transfer to a stepless shifting mode and a stepped shifting mode by hand. When the stepless shifting mode is selected, a controlling device 50 performs automatic stepless shifting along a minimum fuel consumption rate curve on the basis of various engine items such as a throttle sensor 56, a tachometer 58 or the like. When the stepped shifting mode is selected, a continuously variable transmission by an endless belt is made shiftable to the stepped shifting mode so as to become a constant transmission ratio on the basis of a manipulated variable of an accelerator 52 and car speed. At times of starting and reaccelerating, it is selected to the stepped shifting mode whereby quick acceleration is securable.
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公开(公告)号：JPS62113922A
公开(公告)日：1987-05-25
申请号：JP6530286
申请日：1986-03-24
Applicant: TOYOTA MOTOR CORP
Inventor： USHIJIMA FUMIHIRO , NUMAZAWA AKIO , SATO AKIRA , MATSUI HIDEAKI
Abstract: PURPOSE:To reduce a device in size and to improve the efficiency of assembly by fixing the first clutch disc an the second clutch disc either to an input shaft or to an output shaft by a common clutch hub fixed to one of the input and output shafts. CONSTITUTION:In a double clutch device 12, the first rotor 38 and the second rotor 30 which function as a clutch plate are fixed to an output shaft 18 by the second hub 32 common to the rotors, and only the second hub 32 for power transmission is fixed to the output shaft 18. The double clutch device 12 is assembled in such a manner that a boss portion 51 is disposed in a positioning hole 33, so that the device 12 can be reduced in thickness and weight. At the time of assembly, in case of inserting the output shaft 18 in a clutch case 26, only the output shaft 18 may be spline-fitted to the single second hub 32 to improve the efficiency of assembly.
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公开(公告)号：JPS6159051A
公开(公告)日：1986-03-26
申请号：JP18116984
申请日：1984-08-30
Applicant: Toyota Motor Corp
Inventor： YONEDA TETSUZO , NUMAZAWA AKIO , TANIGUCHI TOSHIKATSU , UEDA MASAHIRO , KOIDE TOSHIKAZU , SHIGEYAMA SHIGEO , IDA SHUICHIRO , SHIMIZU KATSUMI , SHINDO YOSHIO , KATO SHINJI
Abstract: PURPOSE: To secure correct gear change even when a clutch pedal is erroneously operated by cancelling a gear change command if the clutch operation is not carried out within a specific time after the gear change command is issued from a speed change control signal generator.
CONSTITUTION: The output from a detection means 26 for a gear position in the direction of speed change in a transmission is supplied to a speed change control signal generator 16. If a clutch pedal is stepped-in at an optional point of time t
2 within a prescribed period of time T
1 after generation of a speed change command pulse, a detection signal is given from a clutch switch 12. However, if no output signal is given within said period of time T
1 , the speed change command is cancelled. Therefore, if the clutch operation is not carried on continuously within a prescribed time after generation of the speed change command, an auxiliary transmission is not switched even though the clutch is operated, possibly allowing no erroneous operation to take place.
COPYRIGHT: (C)1986,JPO&JapioAbstract translation: 目的：即使在从变速控制信号发生器发出变速指令之后的特定时间内离合器操作不执行时，即使离合器踏板被错误地操作，也可以确保正确的换档。 构成：来自变速器变速方向上的档位的检测装置26的输出被提供给变速控制信号发生器16.如果离合器踏板在一个可选的时间点t2内踩踏 发生变速指令脉冲后的规定时间段T1，从离合器开关12给出检测信号。但是，如果在所述时间段T1内没有给出输出信号，则取消变速指令。 因此，如果离合器操作在变速指令生成之后的规定时间内没有持续进行，则即使离合器被操作也不会切换辅助变速器，因此可能不会发生错误的操作。
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公开(公告)号：JPS6155388A
公开(公告)日：1986-03-19
申请号：JP18013784
申请日：1984-08-28
Applicant: Toyoda Mach Works Ltd , Toyota Motor Corp
Inventor： NUMAZAWA AKIO , NAKAMURA KYOICHI , SAKAI TOSHIBUMI
CPC classification number: F04C14/26
Abstract: PURPOSE: To reduce the load torque of a pump easily by incorporating such an arrangement, that the discharge port can be put in communication with its mating suction port by means of a selector valve, into at least one of the working chambers of a vane pump having a plurality of working chambers.
CONSTITUTION: Cam ring of a vane pump is equipped with three large dia. parts 1W3C so as to form three working chambers. A discharge port OP and a suction port IP are provided at each large dia. part in front and behind it. Two of these three working chambers are equipped, between their discharge ports DP
2 , OP
3 and the discharge convergent line 50, with a selector valve V
1 , V
2 which can be connectible to the suction ports IP
2 , IP
3 , respectively. Accordingly, two working chambers can be unloaded selectively by changing over the selector valves V
1 , V
2 appropriately, which will ensure reduction of the load torque of the pump.
COPYRIGHT: (C)1986,JPO&JapioAbstract translation: 目的：通过结合这种布置，可以容易地减小泵的负载转矩，使排气口能够通过选择阀与其配合的吸入口连通，进入叶片泵的至少一个工作室 具有多个工作室。 构成：叶片泵的凸轮环配有三个大直径。 部件1-3C以形成三个工作室。 在每个大直径处设有排气口OP和吸入口IP。 部分在前面和后面。 这三个工作室中的两个在其排出口DP2，OP3和排放会聚管线50之间配备有分别可连接到吸入口IP2，IP3的选择阀V1，V2。 因此，可以通过适当地切换选择阀V1，V2来选择性地卸载两个工作室，这将确保减小泵的负载转矩。
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Patent Agency Ranking
公开(公告)号：JPS54150554A
公开(公告)日：1979-11-26
申请号：JP5882478
申请日：1978-05-19
Applicant: Toyota Motor Corp
Inventor： NUMAZAWA AKIO , KUBO MASANORI , KURAMOCHI GOUJIROU , KUSHIMA TATSUO
CPC classification number: F16H3/66 , F16H2200/0008 , F16H2200/0043
Abstract: PURPOSE: To make an absorption properly capable of the thrust force in overdrive and underdrive device, in case of the drive device with a combination made between automatic speed changer and final speed reducer especially applicable for the horizontal engine type front wheel drive system.
CONSTITUTION: In the internal combustion engine, laterally installed in perpendicular to a direction of the car axis of the automobile, to its crankshaft is jointly provided an automatic speed changer comprising a fluid type torque converter, an auxiliary speed changer and a transmission device 71. Though the auxiliary speed changer is of constitution comprising an underdrive device 12 and overdrive device 13 that are coaxially provided with respect to the crankshaft, in this case, with an attachment made between the left end 84 of a ring gear 32 in a second planetary gear device 16 of the underdrive device 12 and the right end 83 of a carrier 45 in a planetary gear device 41 of the overdrive device 13, by means of selecting suitably a pitch diameter of the gear or an angle of torsion, the thrust forces of the planetary gear device 16 and 41 are to be balanced.
COPYRIGHT: (C)1979,JPO&JapioAbstract translation: 目的：为了在超速驱动和欠驱动装置中适当地吸收推力的吸收，如果在自动变速器和最终减速器之间组合的驱动装置特别适用于卧式发动机型前轮驱动系统。 构成：在内燃机中，垂直于汽车轴线方向横向安装的内燃机与其曲轴联合设置有包括流体式变矩器，辅助变速器和变速装置71的自动变速器。 虽然辅助变速器具有包括相对于曲轴同轴设置的欠驱动装置12和过驱动装置13的结构，但是在这种情况下，在第二行星齿轮的环形齿轮32的左端部84之间 欠驱动装置12的装置16和过驱装置13的行星齿轮装置41中的托架45的右端83，通过适当地选择齿轮的节圆直径或扭转角度，推力 行星齿轮装置16和41应平衡。
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公开(公告)号：JPS6412160A
公开(公告)日：1989-01-17
申请号：JP16845387
申请日：1987-07-06
Applicant: TOYOTA MOTOR CORP
Inventor： ASADA TOSHIYUKI , NUMAZAWA AKIO , USHIJIMA FUMIHIRO
Abstract: PURPOSE:To simplify the construction by furnishing a two sets of planetary gearing mechanism of double pinion type, coupling No.1 carrier with No.2 sun gear and No.1 sun gear with No.2 carrier, and operating a clutch and brake selectively. CONSTITUTION:Existing invention includes No.1 planetary gearing mechanism 1 on the input shaft 13 side and No.2 planetary gearing mechanism 2 on the output shaft 15 side, wherein No.1 carrier 11 is coupled solidly with No.2 sun gear 4 and No.1 sun gear 3 with No.2 carrier 12, and No.1-3 clutches C1-C3 and No.1-3 brakes B1-B3 are put on selectively to perform multi-step speed change with six steps forward. For ex., C1, B1 causes the first speed, C2, B2 the second, C3, B1 the third, C2, B3 the fourth, C2, C3 the fifth, C3, B33 the sixth, and C1, B2 backward. This simplifies the total configuration, and multi-step speed change with five or six steps forward can be obtained.
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公开(公告)号：JPS62113951A
公开(公告)日：1987-05-25
申请号：JP25435485
申请日：1985-11-13
Applicant: TOYOTA MOTOR CORP
Inventor： USHIJIMA UMIHIRO , NUMAZAWA AKIO , SATO AKIRA
Abstract: PURPOSE:To improve the shock of gear shift on a driver when a non- continuously variable transmission is shifted so that it becomes a more pleasant one for the driver by providing, between an engine and the non-continuously variable transmission, the No.2 clutch which is allowed to be in a partially engaged state during the transmission is being shifted. CONSTITUTION:Between the crankshaft 16 of an engine 10 and the input shaft 18 of a non-continuously variable transmission 14 are provided in parallel both the No.1 clutch 22 which is being engaged all the time during the normal running of a vehicle, and is disengaged during the period the transmission 14 is being shifted, and the No.2 clutch 24 which is being always disengaged during the vehicle is in normal running and is allowed to be in a partially engaged state during the period the transmission 14 is being shifted. Hereby, even during the period the transmission 14 is being shifted, the power output of the engine 10 can be transmitted by means of the No.2 clutch 24, and accordingly, the shock of gear shift on the driver when the transmission 14 is shifted can be improved so as to become a more pleasant one for the driver.
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公开(公告)号：JPS62113923A
公开(公告)日：1987-05-25
申请号：JP8039886
申请日：1986-04-08
Applicant: TOYOTA MOTOR CORP
Inventor： USHIJIMA FUMIHIRO , NUMAZAWA AKIO , SATO AKIRA , MATSUI HIDEAKI
IPC: F16D25/10
Abstract: PURPOSE:To reduce the diameter of an output shaft and to reduce the outside diameter and weight of a device by forming an oil path of the first clutch in a housing of a speed change gear and an oil path of the second clutch in an output shaft, so that only one oil path is provided in the output shaft. CONSTITUTION:The first clutch 22 is disposed on the speed change gear side in a clutch case 26, and the first clutch 22 is connected directly to an oil path 44 formed in a housing 43 of a speed change gear. The second clutch 24 is disposed on the engine side in the clutch case 26, and the second clutch 24 and the oil path formed in the housing of the speed change gear are connected to each other through an oil path 48 formed in the output shaft 18. Thus, only one oil path for the second clutch 24 is disposed in the output shaft 18, so that the diameter of the output shaft 18 can be reduced, and the outside diameter and weight of a double clutch device can be also reduced.
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公开(公告)号：JPS6293543A
公开(公告)日：1987-04-30
申请号：JP23187685
申请日：1985-10-17
Applicant: TOYOTA MOTOR CORP
Inventor： USHIJIMA FUMIHIRO , NUMAZAWA AKIO , SATO AKIRA , MATSUI HIDEAKI
Abstract: PURPOSE:To shorten a shifting time, by providing a relatively thin-walled cylindrical member in a driven rotative member adapted to be coupled with an input shaft in a synchromesh transmission. CONSTITUTION:In an electromagnetic powder type clutch 14, a thick-walled cylindrical outer yoke 24 including an annular excitation coil 22 is connected through a first disc-like connecting member 20 to a crank shaft 12. An inner yoke 28 is fixedly connected through a second connecting member 26 to the first connecting member 20 to define an annular space between the inner circumferential surface of the outer yoke 24 and the outer circumferential surface of the inner yoke 28. A thin-walled cylindrical member 30 is engaged in the annular space between the outer yoke 24 and the inner yoke 28 to define an outer gap 32 and an inner gap 34 for receiving a magnetic powder between the cylindrical member 30 and the inner circumferential surface of the outer yoke 24 and between the cylindrical member 30 and the outer circumferential surface of the inner yoke 28, respectively.
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