JP2006266389A - Multistage transmission - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To construct a transmission into multistages while keeping a gear ratio step in a well balanced manner. <P>SOLUTION: A first transmission part 28 has a first intermediate output member M1 (R2) for transmitting the rotation of an input shaft 16 while reducing its speed, and second intermediate output members M2 (CA1, CA2) for transmitting the rotation of the input shaft 16 while reducing its speed to be lower than the first intermediate output member M1. A second transmission part 30 has a first rotating element RE1 consisting of a third carrier CA3 and a fourth sun gear S4, a second rotating element RE2 consisting of a third ring gear R3 and a fourth carrier 4, a third rotating element RE3 consisting of a fourth ring gear R4, and a fourth rotating element RE4 consisting of a third sun gear S3, and clutches C1-C5 and brakes B1, B2. The C1, C2, C3, C4, C5 selectively connect the M1 to the RE4, the input shaft 16 to the RE2, the M1 to the RE1, the input shaft 16 to the RE1, and the M2 to the RE1, respectively. The B1, B2 selectively stop the rotation of the RE1 and of the RE2, respectively. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a multistage transmission provided between a prime mover and drive wheels in a vehicle such as an automobile, and more particularly to multistage transmission of the transmission.

In a vehicle, a multi-stage transmission using a plurality of planetary gear units and engaging elements, such as a clutch and a brake, for coupling elements constituting them to select a plurality of predetermined gear ratios or gears Is frequently used. For example, in the multi-stage transmission described in Patent Document 1, by providing two non-switchable front planetary gear units, three different rotational speeds can be output to the rear planetary gear unit, thereby at least seven forward stages. Can be established.
Special table 2003-514195 gazette JP 2002-206601 A JP 2002-213545 A JP 2002-227940 A Japanese Patent Laid-Open No. 2002-266956 JP 2002-295609 A

  By the way, when the transmission is multistaged, it is necessary to increase the speed ratio step between the speed stages while maintaining a good balance, but the multistage transmission described in Patent Document 1 does not necessarily have a good balance of the speed ratio steps. There is no problem.

  The present invention has been made in the background of the above circumstances, and an object of the present invention is to provide a multi-stage transmission that can be multi-staged while maintaining a good gear ratio step.

  The first invention for achieving this object is as follows: (a) a first intermediate output member that decelerates and transmits the rotation of the input rotation member; A first transmission portion having a second intermediate output member, and a second transmission portion in which four rotating elements are configured by connecting parts of the sun gear, the carrier, and the ring gear of the two planetary gear devices to each other. (B) on the collinear chart in which the rotational speeds of the four rotating elements can be represented by straight lines, the four rotating elements are arranged in order from one end to the other end in the order of the first rotating element and the second rotating element. When the rotating element, the third rotating element, and the fourth rotating element are used, the first clutch element that selectively connects the first intermediate output member and the fourth rotating element, the input rotating member, and the second rotation thereof Second class to selectively connect elements A clutch element, a third clutch element that selectively connects the first intermediate output member and the first rotating element, and a fourth clutch that selectively connects the input rotating member and the first rotating element. An element, a fifth clutch element that selectively connects the second intermediate output member and the first rotating element, a first brake element that selectively stops rotation of the first rotating element, and a second rotation thereof And a second brake element that selectively stops rotation of the element.

  According to a second aspect of the present invention, in the multi-stage transmission according to the first aspect, (a) the first shift stage is established by engaging the first clutch element and the second brake element, and (b) the first stage. The second shift stage is established by engaging one clutch element and the first brake element, and (c) the third shift stage is established by engaging the first clutch element and the fifth clutch element. (D) the fourth shift stage is established by engaging the first clutch element and the third clutch element, and (e) engaging the first clutch element and the fourth clutch element. To establish the fifth gear, (f) the sixth gear is established by engaging the first clutch element and the second clutch element, and (g) the second clutch element and the second clutch element. 4th class The seventh gear is established by engaging the elements, (h) the eighth gear is established by engaging the second clutch element and the third clutch element, and (i) the first gear. The ninth shift stage is established by engaging the second clutch element and the fifth clutch element.

  According to a third aspect of the present invention, in the multi-stage transmission according to the second aspect of the present invention, the tenth speed is established by further engaging the second clutch element and the first brake element.

According to a fourth aspect of the present invention, in the multi-stage transmission according to the first aspect of the invention, (a) a first shift stage established by engaging the first clutch element and the second brake element, and (b) the first shift stage. A second shift stage established by engaging the clutch element and the first brake element; (c) a third shift stage established by engaging the first clutch element and the fifth clutch element; (d) a fourth shift stage established by engaging the first clutch element and the third clutch element, and (e) established by engaging the first clutch element and the fourth clutch element. (F) a sixth shift stage established by engaging the first clutch element and the second clutch element, and (g) the second clutch element and the fourth clutch. A seventh shift stage established by engaging the elements; (h) an eighth shift stage established by engaging the second clutch element and the third clutch element; and (i) the second clutch. A ninth shift stage established by engaging an element and the fifth clutch element; (j) a tenth shift stage established by engaging the second clutch element and the first brake element;
Of these, the shift is performed using the ninth gear except for the first gear, the second gear, and the third gear.

  The fifth invention is the multi-stage transmission according to any one of the first invention to the fourth invention, wherein (a) the first transmission unit is a single pinion type first planetary gear unit and a double pinion type first gear unit. 2 a front planetary gear device, (b) the ring gear of the first front planetary gear device is always stopped, and (c) the ring gear of the second front planetary gear device is the first intermediate output member. (D) the sun gear of the first front planetary gear device and the sun gear of the second front planetary gear device are connected to each other and to the input rotating member, and (e) the first front planetary gear device. The carrier of the planetary gear device and the carrier of the second front planetary gear device are connected to each other and serve as the second intermediate output member.

  According to a sixth aspect of the present invention, in the multi-stage transmission according to any one of the first to fourth aspects of the invention, (a) the first transmission unit includes a single-pinion type first planetary gear unit and a double-pinion type first transmission. 2 a front planetary gear device, (b) the ring gear of the first front planetary gear device is always stopped, and (c) the ring gear of the second front planetary gear device is the first intermediate output member. (D) the sun gear of the first front planetary gear device and the carrier of the second front planetary gear device are connected to each other and to the input rotating member, and (e) the first front planetary gear device. The carrier of the planetary gear device and the sun gear of the second front planetary gear device are connected to each other and serve as the second intermediate output member.

  The seventh invention is the multi-stage transmission according to any one of the first to fourth inventions, wherein (a) the first transmission unit is a single pinion type first planetary gear unit and a double pinion type first gear unit. 2 with a front planetary gear unit, (b) the ring gear of the first front planetary gear unit and the sun gear of the second front planetary gear unit are always stopped rotating, and (c) the second front planetary gear unit. A ring gear of the device is the first intermediate output member; and (d) a sun gear of the first front planetary gear device and a carrier of the second front planetary gear device are connected to each other and connected to the input rotating member. And (e) the carrier of the first front planetary gear unit is the second intermediate output member.

  The eighth invention is the multi-stage transmission according to any one of the first to fourth inventions, wherein (a) the first transmission unit is a single pinion type first planetary gear unit and a double pinion type first gear unit. (2) a front planetary gear device, (b) the ring gear of the first front planetary gear device and the carrier of the second front planetary gear device are always stopped, and (c) the second front planetary gear device. The sun gear of the device is the first intermediate output member, (d) the sun gear of the first front planetary gear device is coupled to the input rotating member, and (e) the carrier of the first front planetary gear device and the carrier A ring gear of the second front planetary gear device is connected to each other and is used as the second intermediate output member.

  The ninth invention is the multi-stage transmission according to any one of the first to fourth inventions, wherein (a) the first transmission unit is a single pinion type first front planetary gear unit and a double pinion type first gear unit. And (b) the sun gear of the first front planetary gear device is connected to the input rotating member, and (c) the carrier of the first front planetary gear device and the second front planetary gear device. The ring gear of the planetary gear unit is connected to each other to form the second intermediate output member. (D) The ring gear of the first front planetary gear unit and the sun gear of the second front planetary gear unit always stop rotating. (E) The carrier of the second front planetary gear unit is the first intermediate output member.

  A tenth aspect of the invention is the multi-stage transmission according to any one of the first to fourth aspects of the invention, wherein (a) the first transmission portion is a double pinion type first planetary gear unit and a single pinion type first gear unit. And (b) a sun gear of the first front planetary gear device and a sun gear of the second front planetary gear device are connected to each other and to the input rotating member, and (c) ) The carrier of the second front planetary gear unit is the second intermediate output member, and (d) the carrier of the first front planetary gear unit and the ring gear of the second front planetary gear unit always stop rotating. (E) The ring gear of the first front planetary gear device is the first intermediate output member.

  The eleventh aspect of the invention is the multi-stage transmission according to any one of the first to fourth aspects of the invention, wherein (a) the first transmission portion is a double pinion type first planetary gear unit and a single pinion type first gear unit. And (b) a sun gear of the second front planetary gear device is connected to the input rotating member, and (c) a ring gear of the first front planetary gear device and its second front A ring gear of the stationary planetary gear unit is connected to each other and serves as the second intermediate output member; (d) the sun gear of the first front planetary gear unit is always stopped rotating; and (e) the first The carrier of the planetary gear device and the carrier of the second front planetary gear device are connected to each other and serve as the first intermediate output member.

  A twelfth aspect of the invention is the multi-stage transmission according to any one of the first to fourth aspects of the invention, wherein (a) the first transmission portion is a double pinion type first planetary gear unit and a single pinion type first gear unit. And (b) a sun gear of the second front planetary gear device is connected to the input rotating member, and (c) a ring gear of the first front planetary gear device and its second front The ring gears of the planetary gear unit are connected to each other to form the second intermediate output member, (d) the carrier of the first front planetary gear unit is always stopped, and (e) the first front planetary gear unit. The sun gear of the device and the carrier of the second front planetary gear device are connected to each other and serve as the first intermediate output member.

  A thirteenth aspect of the invention is the multi-stage transmission according to any one of the first to fourth aspects of the invention, wherein (a) the first transmission portion is a double pinion type first planetary gear unit and a single pinion type first gear unit. And (b) a carrier of the first front planetary gear device and a sun gear of the second front planetary gear device are connected to each other and to the input rotation member, and (c) ) The ring gear of the second front planetary gear unit is the second intermediate output member, (d) the sun gear of the first front planetary gear unit is always stopped rotating, and (e) the first front planetary gear unit. The ring gear of the device and the carrier of the second front planetary gear device are connected to each other and serve as the first intermediate output member.

  A fourteenth aspect of the present invention is the multi-stage transmission according to any one of the first to fourth aspects of the invention, wherein (a) the first transmission unit is a double pinion type first planetary gear unit and a single pinion type first gear unit. And (b) a sun gear of the first front planetary gear device and a sun gear of the second front planetary gear device are connected to each other and to the input rotating member, and (c) ) The ring gear of the second front planetary gear unit is the second intermediate output member; (d) the carrier of the first front planetary gear unit is always stopped rotating; and (e) the first front planetary gear unit. The ring gear of the device and the carrier of the second front planetary gear device are connected to each other and serve as the first intermediate output member.

  The fifteenth aspect of the present invention is the multi-stage transmission according to any one of the first to fourteenth aspects of the invention, wherein (a) the second transmission unit is a double pinion type first rear planetary gear unit and a single pinion type second gear unit. And (b) a carrier of the first rear planetary gear device and a sun gear of the second rear planetary gear device are connected to each other to constitute the first rotating element, and (c) A ring gear of the first rear planetary gear device and a carrier of the second rear planetary gear device are connected to each other to constitute the second rotating element; (d) a ring of the second rear planetary gear device; The third rotating element is constituted by a gear, and (e) the fourth rotating element is constituted by a sun gear of the first rear planetary gear device.

  According to the first aspect of the present invention, in the first speed change portion, the rotation of the input rotation member is decelerated to obtain two reduced rotations in addition to the rotation speed of the input rotation member, so that four rotation elements, five clutches are obtained. In the second transmission unit having the elements and the two brake elements, the three types of rotational speeds of the first transmission unit are further shifted, so that multiple stages can be achieved while keeping the gear ratio step in good balance.

  According to the second or fourth invention, a nine-speed shift is possible, and according to the third invention, a ten-speed shift is possible.

  The mounting posture of the multi-stage transmission (hereinafter referred to as “transmission”) of the present invention with respect to the vehicle may be a horizontal installation type such as an FF (front engine / front drive) vehicle in which the axis of the transmission is in the width direction of the vehicle. It may be a vertical installation type such as an FR (front engine / rear drive) vehicle whose axis is in the longitudinal direction of the vehicle.

  The transmission may be one that automatically switches the gear position according to the driving state such as the accelerator operation amount and the vehicle speed, or may be one that switches the gear position according to the driver's switch operation (up / down operation or the like). The transmission of the present invention may be capable of nine-speed shifting from the first gear to the ninth gear as in the second invention, and may be capable of ten-speed gearing as in the third invention. Also good. Further, as in the fourth aspect of the invention, a nine-speed shift is possible by a shift speed that excludes any one of the first shift speed, the second shift speed, and the third shift speed from the first shift speed to the tenth shift speed. It is good. This is because even if any one of the first gear, the second gear, and the third gear is omitted, the balance of the gear ratio steps can be appropriately maintained.

  As the first to fifth clutch elements and the first and second brake elements, hydraulic friction engagement devices such as a multi-plate type, a single plate type, and a belt type that are frictionally engaged by a hydraulic cylinder are preferably used. Other types of engagement devices such as an electromagnetic type may be employed. In order to facilitate the shift control, a one-way clutch can be provided in parallel or in series with the brakes and clutches. For example, if a one-way clutch is provided in parallel with the second brake, the first shift stage can be established only by engaging the first clutch, and the second shift stage can be switched simply by engaging the first brake. Can do. If the engine brake is not required, a one-way clutch may be provided instead of the second brake. The one-way clutch has the same function as the brake in that it stops rotating.

  As the first transmission unit, one having two sets of planetary gear devices can be used as in the fifth to fourteenth inventions. In addition, two shaft centers parallel to the transmission can be used. And three counter gear pairs each composed of a pair of gears respectively disposed on the two shaft centers, the transmission ratio of one counter gear pair being set to 1, and the remaining The first transmission unit may be configured by setting the gear ratio of the two counter gear pairs to a value smaller than 1 and different from each other. Furthermore, the first transmission unit may be configured by combining a planetary gear device and a counter gear pair. In other words, the rotation of the input rotation member may be reduced by the planetary gear device, and the rotation of the input rotation member may also be reduced by the counter gear pair at a reduction ratio different from that of the planetary gear device. When the first transmission unit is provided with a counter gear pair, it is essential that the transmission has two shaft centers parallel to each other, whereas the first transmission unit has 2 shaft centers. In the case where a set of planetary gear units is provided, each component of the transmission can be arranged on one shaft center, but the first transmission unit has two sets of planetary gear units. In this case, the transmission has two shaft centers that are parallel to each other, the first transmission portion is disposed on the first shaft center, and the second transmission portion is disposed on the first shaft center. Also good.

  Preferably, an output of a driving force source such as an engine is input to the input rotation member via a fluid transmission device. In this way, a compact transmission can be designed. A torque converter is preferably used as the fluid rolling device, but a fluid coupling may be used instead of the torque converter. The fluid transmission device is preferably provided with a lock-up clutch, but the lock-up clutch may not be provided, and instead of the fluid transmission device, a magnetic powder type electromagnetic clutch, a multi-plate or a single plate type The hydraulic clutch may be provided.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a skeleton diagram illustrating the configuration of a transmission 10 to which the present invention is applied. In FIG. 1, a transmission 10 includes a torque converter 14 with a lock-up clutch 13 as a fluid transmission device on a common shaft center in a transmission case (hereinafter simply referred to as a case) 12 attached to a vehicle body, and the torque converter 14. The first transmission unit 28, the third planetary gear unit 22 and the fourth planetary gear unit 24, which are mainly composed of the input shaft 16, the first planetary gear unit 18 and the second planetary gear unit 20 connected to the A second transmission 30 configured as a main body and an output shaft 26 are sequentially arranged. The transmission 10 is preferably used as an FR automatic transmission that is installed vertically in a vehicle, and is provided between the engine 8 and drive wheels (not shown), and transmits the output of the engine 8 to the drive wheels. . The input shaft 16 is a turbine shaft of the torque converter 14, and the input shaft 16 corresponds to an input rotating member. The output shaft 26 corresponds to an output rotating member, and rotationally drives the left and right drive wheels via, for example, a differential gear device (not shown). The transmission case 12 corresponds to a non-rotating member, and the torque converter 14 is connected to the crankshaft 9 of the engine 8. Since the transmission 10 is configured symmetrically with respect to its axis, the lower side is omitted in the skeleton diagram of FIG.

  The first planetary gear unit 18 and the second planetary gear unit 20 constituting the first transmission unit 28 are a single pinion type and a double pinion type, respectively. The first planetary gear unit 18 is a first front planetary gear unit. The second planetary gear device 20 corresponds to a second front planetary gear device. The first planetary gear unit 18 includes a first sun gear S1, a first pinion gear P1, a first carrier CA1 that supports the first pinion gear P1 so as to rotate and revolve, and a first sun gear S1 via a first pinion gear P1. The second planetary gear device 20 supports the second sun gear S2, a plurality of pairs of second pinion gears P2 that mesh with each other, and the second pinion gears P2 so as to be capable of rotating and revolving. A second ring gear R2 that meshes with the second sun gear S2 via the second carrier CA2 and the second pinion gear P2 is provided.

  In the first transmission unit 28, the first sun gear S1 and the second sun gear S2 are connected to each other and connected to the input shaft 16 to be driven to rotate, and the first carrier CA1 and the second carrier CA2 are connected to each other. The first ring gear R1 is integrally fixed to the case 12 and cannot be rotated. With this configuration, the second ring gear R2 is decelerated and rotated with respect to the input shaft 16, and the first carrier CA1 and the second carrier CA2 connected to each other are further decelerated and rotated than the second ring gear R2. Therefore, the second ring gear R2 corresponds to the first intermediate output member M1, and the first carrier CA1 and the second carrier CA2 connected to each other correspond to the second intermediate output member M2.

  The third planetary gear device 22 and the fourth planetary gear device 24 constituting the second transmission unit 30 are respectively a double pinion type and a single pinion type, and the third planetary gear device 22 is a first rear planetary gear device. The fourth planetary gear device 24 corresponds to a second rear planetary gear device. The third planetary gear unit 22 includes a third sun gear S3, a plurality of pairs of third pinion gears P3 that mesh with each other, a third carrier CA3 that supports the third pinion gear P3 so as to rotate and revolve, and a third pinion gear P3. The fourth planetary gear unit 24 supports the fourth sun gear S4, the fourth pinion gear P4, and the fourth pinion gear P4 so that they can rotate and revolve. A fourth ring gear R4 that meshes with the fourth sun gear S4 via a fourth carrier CA4 and a fourth pinion gear P4 is provided.

  In the second transmission unit 30, the third carrier CA3 and the fourth sun gear S4 are connected to each other to form the first rotating element RE1, and the third ring gear R3 and the fourth carrier CA4 are connected to each other. A two-rotation element RE2 is configured, a third rotation element RE3 is configured by the fourth ring gear R4, and a fourth rotation element RE4 is configured by the third sun gear S3.

  The second transmission unit 30 includes first to fifth clutches C1 to C5 (that is, first to fifth clutch elements) and first and second brakes B1 and B2 (that is, first and second brake elements). ). The first clutch C1 selectively connects the first intermediate output member M1 (that is, the second ring gear R2) and the fourth rotation element RE4 (S3), and the second clutch C2 is connected to the input shaft 16 and the second rotation. The element RE2 (R3, CA4) is selectively connected, the third clutch C3 selectively connects the first intermediate output member M1 and the first rotating element RE1 (CA3, S4), and the fourth clutch C4 is The input shaft 16 and the first rotation element RE1 (CA3, S4) are selectively connected, and the fifth clutch C5 is connected to the second intermediate output member M2 (that is, the first carrier CA1 and the second carrier CA2) and performs the first rotation. The element RE1 (CA3, S4) is selectively connected. The first brake B1 selectively connects the first rotating element RE1 (CA3, S4) to the case 12 to stop the rotation, and the second brake B2 selectively selects the second rotating element RE2 (R3, CA4). It is connected to the case 12 and stopped rotating. The first to fifth clutches C1 to C5 and the first and second brakes B1 and B2 are all multi-plate hydraulic friction engagement devices that are frictionally engaged by a hydraulic cylinder.

  FIG. 2 is a collinear chart in which the rotational speeds of the rotating elements of the first transmission unit 28 and the second transmission unit 30 can be represented by straight lines. The lower horizontal line X1 is the rotational speed “0”, The horizontal line X2 is the rotational speed “1.0”, that is, the same rotational speed as the input shaft 16. Further, the vertical lines of the first transmission unit 28 are connected in order from the left side, the first ring gear R1, the first carrier CA1 and the second carrier CA2, and the second ring gear R2 that are integrally connected. The first sun gear S1 and the second sun gear S2 are expressed by the first planetary gear so that when the distance between the sun gear and the carrier is “1”, the distance between the carrier and the ring gear is ρ. It is determined according to the gear ratio (= number of teeth of the sun gear / number of teeth of the ring gear) ρ1, ρ2 of the gear device 18 and the second planetary gear device 20. In addition, the four vertical lines of the second transmission unit 30 indicate the first rotation element RE1 (CA3, S4), the second rotation element RE2 (R3, CA4), the third rotation element RE3 (R4), in order from the left side. The fourth rotation element RE4 (S3) is shown, and the interval between them is determined according to the gear ratio ρ3 of the third planetary gear device 22 and the gear ratio ρ4 of the fourth planetary gear device 24.

  As is apparent from this collinear diagram, when the first clutch C1 is engaged, the fourth rotating element RE4 is connected to the first intermediate output member M1, and the second brake B2 is engaged. Accordingly, when the second rotation element RE2 is stopped from rotating, the third rotation element RE3 coupled to the output shaft 26 rotates at the rotation speed indicated by “1st”, and the largest speed ratio (= the rotation speed of the input shaft 16). / Rotation speed of the output shaft 26) is established.

  Further, when the first clutch C1 is engaged, the fourth rotating element RE4 is connected to the first intermediate output member M1, and when the first brake B1 is engaged, the first rotating element RE1 stops rotating. Then, the third rotation element RE3 is rotated at the rotation speed indicated by “2nd”, and the second speed “2nd” having a smaller gear ratio than the first speed “1st” is established.

  Further, when the first clutch C1 is engaged, the fourth rotating element RE4 is connected to the first intermediate output member M1, and when the fifth clutch C5 is engaged, the first rotating element RE1 is second. When connected to the intermediate output member M2, the third rotation element RE3 is rotated at the rotational speed indicated by “3rd”, and the third shift stage “3rd” having a smaller gear ratio than the second shift stage “2nd” is established. To do.

  Further, when both the fourth rotation element RE4 and the first rotation element RE1 are coupled to the first intermediate output member M1 by engaging the first clutch C1 and the third clutch C3, the second transmission unit 30 is The third rotation element RE3 is rotated at the rotation speed indicated by “4th” and integrally rotated at the same rotation speed as that of the first intermediate output member M1, so that the fourth speed change ratio is smaller than the third shift speed “3rd”. Stage “4th” is established.

  Further, when the first clutch C1 is engaged, the fourth rotating element RE4 is coupled to the first intermediate output member M1, and when the fourth clutch C4 is engaged, the first rotating element RE1 is connected to the input shaft. When connected to 16, the third rotation element RE3 is rotated at the rotational speed indicated by “5th”, and the fifth shift stage “5th” having a smaller gear ratio than the fourth shift stage “4th” is established.

  Further, when the first clutch C1 is engaged, the fourth rotating element RE4 is connected to the first intermediate output member M1, and when the second clutch C2 is engaged, the second rotating element RE2 is connected to the input shaft. When connected to 16, the third rotation element RE3 is rotated at the rotational speed indicated by “6th”, and the sixth speed “6th” having a smaller gear ratio than the fifth speed “5th” is established.

  In addition, when the second clutch C2 and the fourth clutch C4 are engaged, and the second rotation element RE2 and the first rotation element RE1 are both connected to the input shaft 16, the second transmission unit 30 is connected to the input shaft 16. The third rotation element RE3 is rotated at the rotation speed indicated by “7th”, and the seventh shift stage “7th” having a smaller gear ratio than the sixth shift stage “6th” is established. To do. The gear ratio of the seventh gear stage “7th” is 1.

  Further, the second rotating element RE2 is connected to the input shaft 16 by engaging the second clutch C2, and the first rotating element RE1 is connected to the first intermediate output member by engaging the third clutch C3. When connected to M1, the third rotation element RE3 is rotated at the rotational speed indicated by “8th”, and the eighth shift stage “8th” having a smaller gear ratio than the seventh shift stage “7th” is established.

  Further, when the second clutch C2 is engaged, the second rotating element RE2 is coupled to the input shaft 16, and when the fifth clutch C5 is engaged, the first rotating element RE1 is connected to the second intermediate output. When connected to the member M2, the third rotation element RE3 is rotated at the rotation speed indicated by “9th”, and the ninth shift stage “9th” having a smaller gear ratio than the eighth shift stage “8th” is established.

  Further, when the second clutch C2 is engaged, the second rotating element RE2 is coupled to the input shaft 16, and when the first brake B1 is engaged, the first rotating element RE1 is stopped. The third rotation element RE3 is rotated at the rotation speed indicated by “10th”, and the tenth shift stage “10th” having a smaller gear ratio than the ninth shift stage “9th” is established.

  Further, the second brake element B2 is engaged to stop the rotation of the second rotation element RE2, and the fifth clutch C5 is engaged to connect the first rotation element RE1 to the second intermediate output member M2. Then, the third rotation element RE3 is reversely rotated at the rotation speed indicated by “Rev1”, and the first reverse shift speed “Rev1” is established. Further, when the second brake B2 is engaged, the rotation of the second rotation element RE2 is stopped, and when the third clutch C3 is engaged, the first rotation element RE1 is connected to the first intermediate output member M1. Then, the third rotation element RE3 is reversely rotated at the rotational speed indicated by “Rev2”, and the second reverse shift stage “Rev2” having a smaller gear ratio than the first reverse shift stage “Rev1” is established. When the second brake B2 is engaged, the second rotation element RE2 is stopped from rotating, and when the fourth clutch C4 is engaged, the first rotation element RE1 is connected to the input shaft 16. The third rotation element RE3 is reversely rotated at the rotation speed indicated by “Rev3”, and the third reverse shift stage “Rev3” having a smaller gear ratio than the second reverse shift stage “Rev2” is established.

  FIG. 3 is an operation table for explaining the engagement elements and the gear ratios at the time when the above-described gears are established. “◯” indicates engagement, and blanks indicate release. By appropriately determining the gear ratios ρ1 to ρ4 of the first planetary gear device 18, the second planetary gear device 20, the third planetary gear device 22, and the fourth planetary gear device 24, the gear ratios of the respective speed stages shown in FIG. Is obtained. In the case shown in FIG. 3, the value of the gear ratio is substantially appropriate, and the gear ratio step (the ratio of the gear ratio between the gears) is also appropriate, so that the total gear ratio width (= 4. 545 / 0.626) is also as large as about 7.267, and the gear ratios of the reverse gears “Rev1,” “Rev2,” and “Rev3” are also appropriate, and an appropriate gear ratio characteristic is obtained as a whole. Further, the gear ratio step between the ninth gear and the tenth gear is relatively small. In addition, since it is possible to perform shifts at each gear stage simply by grasping any two of the clutches C1 to C5 and the brakes B1 and B2, the shift control is easy and the occurrence of shift shock is suppressed. Also, in the case of the jump shift, the shift can be achieved by changing any one of the clutches C1 to C5 and the brakes B1 and B2, so that the jump shift is also facilitated.

  FIG. 4 illustrates a signal input to the electronic control device 40 for controlling the transmission 10 of the present embodiment and a signal output from the electronic control device 40. The electronic control unit 40 includes a so-called microcomputer including a CPU, a ROM, a RAM, an input / output interface, and the like, and performs signal processing in accordance with a program stored in advance in the ROM while using a temporary storage function of the RAM. Thus, the output control of the engine 8 and the shift control of the transmission 10 are performed.

The aforementioned electronic control unit 40, from the sensors and switches shown in FIG. 4, a signal indicating the engine coolant temperature, a signal representing the shift position, a signal indicative of engine rotational speed N _E is the rotational speed of the engine 8, the operation of an air conditioner An air conditioner signal, a vehicle speed signal corresponding to the rotational speed of the output shaft 26, an oil temperature signal indicating the hydraulic oil temperature of the transmission 10, a signal indicating a side brake operation, a signal indicating a foot brake operation, and a catalyst temperature signal indicating a catalyst temperature. , An accelerator opening signal indicating the amount of operation of the accelerator pedal, a cam angle signal, a snow mode setting signal indicating a snow mode setting, an acceleration signal indicating the longitudinal acceleration of the vehicle, a signal indicating an auto cruise signal indicating auto cruise traveling, etc. Supplied respectively.

  Further, the electronic control unit 40 receives a drive signal for a throttle actuator that controls the opening of the throttle valve, a boost pressure adjustment signal for adjusting the boost pressure, and an electric air conditioner drive signal for operating the electric air conditioner. , An ignition signal for instructing the ignition timing of the engine 8, a shift position (operation position) display signal for operating the shift indicator, a gear ratio display signal for displaying the gear ratio, and a display for indicating that it is in the snow mode A snow mode display signal, an ABS operation signal for operating an ABS actuator for preventing wheel slippage during braking, and an electromagnetic wave included in a hydraulic control circuit for controlling the hydraulic actuator of the hydraulic friction engagement device of the transmission 10 Valve command signal for operating the valve, and actuating the electric hydraulic pump that is the hydraulic source of the above hydraulic control circuit Because of the drive command signal, a signal for driving an electric heater, signals, etc. to the cruise control computer is output, respectively.

  As described above, in the transmission 10 of this embodiment, in the first transmission unit 28, the rotation of the input shaft 16 is decelerated, so that two reduced rotations are obtained in addition to the rotation speed of the input shaft 16. In the second transmission unit 30 having the elements RE1 to RE4, the five clutches C1 to C5, and the two brakes B1 and B2, the three types of rotational speeds of the first transmission unit 28 are further shifted, so that the gear ratio step is performed. A 10-speed shift is possible while maintaining a good balance. Further, even if any one of the first gear, the second gear, and the third gear is removed, the gear ratio step balance can be maintained appropriately. It is also possible.

  Next, another embodiment of the present invention will be described. In the following description, parts that are substantially the same as those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 5 is a skeleton diagram illustrating the configuration of the transmission 50 according to the second embodiment of the present invention. FIG. 6 is a collinear diagram showing the rotational speed of the rotating element at each gear stage of the transmission 50. When this transmission 50 is compared with the transmission 10 of the first embodiment, only the configuration of the first transmission section 52 is different, and the second transmission section 30 that is the same as the transmission 10 of the first embodiment is provided. I have.

  The first transmission unit 52 is mainly configured by a single pinion type first planetary gear unit 54 and a double pinion type second planetary gear unit 56, and the first planetary gear unit 54 is configured as a first front planetary gear unit. The second planetary gear unit 56 corresponds to a second front planetary gear unit. The first planetary gear unit 54 includes a first sun gear S1, a first pinion gear P1, a first carrier CA1 that supports the first pinion gear P1 so as to rotate and revolve, and a first sun gear S1 via a first pinion gear P1. The second planetary gear device 56 supports the second sun gear S2, a plurality of pairs of second pinion gears P2 that mesh with each other, and the second pinion gears P2 so that they can rotate and revolve. A second ring gear R2 that meshes with the second sun gear S2 via the second carrier CA2 and the second pinion gear P2 is provided.

  In the first transmission unit 52, the first sun gear S1 and the second carrier CA2 are connected to each other and are connected to the input shaft 16 to be rotationally driven, and the first carrier CA1 and the second sun gear S2 are connected to each other. The first ring gear R1 is integrally fixed to the case 12 and cannot be rotated. With this configuration, the second ring gear R2 is rotated at a reduced speed with respect to the input shaft 16, and the first carrier CA1 and the second sun gear S2 connected to each other are further rotated at a reduced speed than the second ring gear R2. Therefore, the second ring gear R2 corresponds to the first intermediate output member M1, and the first carrier CA1 and the second sun gear S2 connected to each other correspond to the second intermediate output member M2.

  The first transmission unit 52 is a member (S1, CA2) that is connected to the input shaft 16 and driven to rotate by connecting some of the elements of the first planetary gear unit 54 and the second planetary gear unit 56 to each other. The first intermediate output member M1 (R2), the second intermediate output member M2 (CA1, S2), and the member (R1) that is always stopped rotating are the same as in the first embodiment. is there. As described above, the second transmission unit 30 is the same as that in the first embodiment.

  In the collinear diagram shown in FIG. 6, the vertical lines of the first transmission unit 52 indicate, in order from the left, the first ring gear R1, the second intermediate output member M2 (CA1, S2), and the first intermediate output member M1. (R2) represents the first sun gear S1 and the second carrier CA2 that are integrally connected, and the second transmission 30 has the same configuration as the first embodiment, so that each vertical line represents the first embodiment. Similar to the example. Accordingly, the alignment chart is the same as that of the first embodiment of FIG. 2 based on the rotation element. Further, since the alignment chart is the same as that of the first embodiment, the operation table for explaining the engagement elements and the gear ratios when establishing the respective gear positions is as shown in FIG. 3 described above. Therefore, the same effect as the first embodiment can be obtained.

  As described above, in the transmission 50 of the present embodiment as well, the first transmission unit 52 decelerates the rotation of the input shaft 16 to obtain two reduced rotations in addition to the rotation speed of the input shaft 16, and four rotations. In the second transmission unit 30 having the elements RE1 to RE4, the five clutches C1 to C5, and the two brakes B1 and B2, three types of rotational speeds of the first transmission unit 52 are further shifted, so that the gear ratio step is performed. A 10-speed shift is possible while maintaining a good balance.

  Next, a third embodiment of the present invention will be described. FIG. 7 is a skeleton diagram illustrating the configuration of the transmission 60 according to the third embodiment of the present invention. FIG. 8 is a collinear diagram showing the rotational speeds of the rotating elements at each gear stage of the transmission 60. The transmission 60 also differs from the transmission 10 of the first embodiment only in the configuration of the first transmission unit 62, and the second transmission unit 30 is the same as the transmission 10 of the first embodiment. It has.

  The first transmission unit 62 is mainly configured by a single pinion type first planetary gear unit 64 and a double pinion type second planetary gear unit 66, and the first planetary gear unit 64 is a first front planetary gear unit. The second planetary gear device 66 corresponds to a second front planetary gear device. The first planetary gear unit 64 includes a first sun gear S1, a first pinion gear P1, a first carrier CA1 that supports the first pinion gear P1 so as to rotate and revolve, and a first sun gear S1 via a first pinion gear P1. The second planetary gear device 66 supports the second sun gear S2, a plurality of pairs of second pinion gears P2 that mesh with each other, and the second pinion gears P2 so that they can rotate and revolve. A second ring gear R2 that meshes with the second sun gear S2 via the second carrier CA2 and the second pinion gear P2 is provided.

  In the first transmission unit 62, the first sun gear S1 and the second carrier CA2 connected to each other are connected to the input shaft 16 and driven to rotate, and the first ring gear R1 and the second sun gear S2 are integrated with the case 12. It is fixed to be unable to rotate. With this configuration, the second ring gear R2 is rotated at a reduced speed with respect to the input shaft 16, and the first carrier CA1 is further rotated at a reduced speed than the second ring gear R2, so that the second ring gear R2 is rotated at the second speed. The first carrier CA1 corresponds to the first intermediate output member M1, and the first carrier CA1 corresponds to the second intermediate output member M2.

  The first transmission unit 62 is a member (S1, CA2) that is connected to the input shaft 16 and driven to rotate by connecting some of the elements of the first planetary gear device 64 and the second planetary gear device 66 to each other. The first intermediate output member M1 (R2), the second intermediate output member M2 (CA1), and the members (R1, S2) that are always stopped are configured in the same way as the first embodiment. is there. As described above, the second transmission unit 30 is the same as that in the first embodiment.

  In the collinear diagram shown in FIG. 8, the vertical lines of the first transmission unit 62 indicate, in order from the left, the first ring gear R1 and the second sun gear S2, the second intermediate output member M2 (CA1), the first intermediate The output member M1 (R2), the first sun gear S1 and the second carrier CA2 that are integrally connected to each other are shown, and the second transmission 30 has the same configuration as that of the first embodiment. The same as in the first embodiment. Accordingly, the alignment chart is the same as that of the first embodiment of FIG. 2 based on the rotation element. Further, since the alignment chart is the same as that of the first embodiment, the operation table for explaining the engagement elements and the gear ratios when establishing the respective gear positions is as shown in FIG. 3 described above. Therefore, the same effect as the first embodiment can be obtained.

  As described above, the transmission 60 according to the present embodiment also obtains two reduced rotations in addition to the rotation speed of the input shaft 16 by decelerating the rotation of the input shaft 16 in the first transmission unit 62, so that four rotations are performed. In the second transmission unit 30 having the elements RE1 to RE4, the five clutches C1 to C5, and the two brakes B1 and B2, the three types of rotational speeds of the first transmission unit 62 are further shifted, so that the gear ratio step is performed. A 10-speed shift is possible while maintaining a good balance.

  Next, a fourth embodiment of the present invention will be described. FIG. 9 is a skeleton diagram illustrating the configuration of the transmission 70 according to the fourth embodiment of the present invention. FIG. 10 is a collinear diagram showing the rotational speed of the rotating element at each gear stage of the transmission 70. The transmission 70 is also different from the transmission 10 of the first embodiment only in the configuration of the first transmission unit 72, and the second transmission unit 30 is the same as the transmission 10 of the first embodiment. It has.

  The first transmission unit 72 is mainly configured by a single pinion type first planetary gear unit 74 and a double pinion type second planetary gear unit 76, and the first planetary gear unit 74 is configured as a first front planetary gear unit. The second planetary gear device 76 corresponds to a second front planetary gear device. The first planetary gear device 74 includes a first sun gear S1, a first pinion gear P1, a first carrier CA1 that supports the first pinion gear P1 so as to rotate and revolve, and a first sun gear S1 via a first pinion gear P1. The second planetary gear unit 76 supports the second sun gear S2, a plurality of pairs of second pinion gears P2 that mesh with each other, and the second pinion gears P2 so that they can rotate and revolve. A second ring gear R2 that meshes with the second sun gear S2 via the second carrier CA2 and the second pinion gear P2 is provided.

  In the first transmission unit 72, the first sun gear S1 is connected to the input shaft 16 and driven to rotate, the first carrier CA1 and the second ring gear R2 are connected to each other, and the first ring gear R1 and the second carrier are connected. CA2 is integrally fixed to the case 12 and cannot be rotated. With this configuration, the second sun gear S2 is decelerated and rotated with respect to the input shaft 16, and the first carrier CA1 and the second ring gear R2 connected to each other are further decelerated and rotated than the second sun gear S2. The second sun gear S2 corresponds to the first intermediate output member M1, and the first carrier CA1 and the second ring gear R2 connected to each other correspond to the second intermediate output member M2.

  The first transmission unit 72 includes a member (S1) that is connected to the input shaft 16 and is driven to rotate by connecting some of the elements of the first planetary gear device 74 and the second planetary gear device 76 to each other. The same as the first embodiment in that the first intermediate output member M1 (S2), the second intermediate output member M2 (CA1, R2), and the members (R1, CA2) that are always stopped are configured. is there. As described above, the second transmission unit 30 is the same as that in the first embodiment.

  In the collinear diagram shown in FIG. 10, the vertical lines of the first transmission unit 72 indicate, in order from the left, the first ring gear R1 and the second carrier CA2, the second intermediate output member M2 (CA1, R2), the first 1 represents an intermediate output member M1 (S2) and a first sun gear S1, and the second transmission 30 has the same configuration as that of the first embodiment, so that each vertical line is the same as that of the first embodiment. Accordingly, the alignment chart is the same as that of the first embodiment of FIG. 2 based on the rotation element. Further, since the alignment chart is the same as that of the first embodiment, the operation table for explaining the engagement elements and the gear ratios when establishing the respective gear positions is as shown in FIG. 3 described above. Therefore, the same effect as the first embodiment can be obtained.

  As described above, the transmission 70 according to the present embodiment also obtains two reduced rotations in addition to the rotation speed of the input shaft 16 by reducing the rotation of the input shaft 16 in the first transmission unit 72, thereby rotating the four rotations. In the second transmission unit 30 having the elements RE1 to RE4, the five clutches C1 to C5, and the two brakes B1 and B2, the three types of rotational speeds of the first transmission unit 72 are further shifted, so that the gear ratio step is performed. A 10-speed shift is possible while maintaining a good balance.

  Next, a fifth embodiment of the present invention will be described. FIG. 11 is a skeleton diagram illustrating the configuration of the transmission 80 according to the fifth embodiment of the present invention. FIG. 12 is a collinear diagram showing the rotation speed of the rotating element at each gear stage of the transmission 80. The transmission 80 also differs from the transmission 10 of the first embodiment only in the configuration of the first transmission unit 82, and the second transmission unit 30 is the same as the transmission 10 of the first embodiment. It has.

  The first transmission unit 82 is mainly configured by a single pinion type first planetary gear unit 84 and a double pinion type second planetary gear unit 86, and the first planetary gear unit 84 is a first front planetary gear unit. The second planetary gear device 86 corresponds to a second front planetary gear device. The first planetary gear unit 84 includes a first sun gear S1, a first pinion gear P1, a first carrier CA1 that supports the first pinion gear P1 so as to rotate and revolve, and a first sun gear S1 via a first pinion gear P1. The second planetary gear device 86 supports the second sun gear S2, a plurality of pairs of second pinion gears P2 that mesh with each other, and the second pinion gears P2 so that they can rotate and revolve. A second ring gear R2 that meshes with the second sun gear S2 via the second carrier CA2 and the second pinion gear P2 is provided.

  In the first transmission unit 82, the first sun gear S1 is connected to the input shaft 16 and rotated, the first carrier CA1 and the second ring gear R2 are connected to each other, and the first ring gear R1 and the second sun gear are connected. S2 is integrally fixed to the case 12 and cannot be rotated. With this configuration, the second carrier CA2 is decelerated and rotated with respect to the input shaft 16, and the first carrier CA1 and the second ring gear R2 connected to each other are further decelerated and rotated than the second carrier CA2. The second carrier CA2 corresponds to the first intermediate output member M1, and the first carrier CA1 and the second ring gear R2 connected to each other correspond to the second intermediate output member M2.

  The first speed change portion 82 is a member (S1) that is connected to the input shaft 16 and is driven to rotate by connecting some of the elements of the first planetary gear device 84 and the second planetary gear device 86 to each other. The same as the first embodiment in that the first intermediate output member M1 (CA2), the second intermediate output member M2 (CA1, R2), and the members (R1, S2) that are always stopped are configured. is there. As described above, the second transmission unit 30 is the same as that in the first embodiment.

  In the collinear diagram shown in FIG. 12, each vertical line of the first transmission unit 82 indicates, in order from the left, the first ring gear R1 and the second sun gear S2, the second intermediate output member M2 (CA1, R2), the first 1 represents an intermediate output member M1 (CA2) and a first sun gear S1, and the second transmission 30 has the same configuration as that of the first embodiment, so that each vertical line is the same as that of the first embodiment. Accordingly, the alignment chart is the same as that of the first embodiment of FIG. 2 based on the rotation element. Further, since the alignment chart is the same as that of the first embodiment, the operation table for explaining the engagement elements and the gear ratios when establishing the respective gear positions is as shown in FIG. 3 described above. Therefore, the same effect as the first embodiment can be obtained.

  As described above, the transmission 80 according to the present embodiment also obtains two decelerated rotations in addition to the rotation speed of the input shaft 16 by decelerating the rotation of the input shaft 16 in the first transmission unit 82, so that four rotations are performed. In the second transmission unit 30 having the elements RE1 to RE4, the five clutches C1 to C5, and the two brakes B1 and B2, the three types of rotational speeds of the first transmission unit 82 are further shifted, so that the gear ratio step is performed. A 10-speed shift is possible while maintaining a good balance.

  Next, a sixth embodiment of the present invention will be described. FIG. 13 is a skeleton diagram illustrating the configuration of the transmission 90 according to the sixth embodiment of the present invention. FIG. 14 is a collinear diagram showing the rotational speeds of the rotating elements at each gear stage of the transmission 90. This transmission 90 also differs from the transmission 10 of the first embodiment only in the configuration of the first transmission unit 92, and the second transmission unit 30 is the same as the transmission 10 of the first embodiment. It has.

  The first transmission unit 92 is mainly configured by a double pinion type first planetary gear unit 94 and a single pinion type second planetary gear unit 96, and the first planetary gear unit 94 is a first front planetary gear unit. The second planetary gear unit 96 corresponds to a second front planetary gear unit. The first planetary gear unit 94 includes a first sun gear S1, a plurality of pairs of first pinion gears P1 that mesh with each other, a first carrier CA1 that supports the first pinion gear P1 so as to rotate and revolve, and a first pinion gear P1. The second planetary gear unit 96 supports the second sun gear S2, the second pinion gear P2, and the second pinion gear P2 so that they can rotate and revolve. A second ring gear R2 that meshes with the second sun gear S2 via the second carrier CA2 and the second pinion gear P2 is provided.

  In the first transmission unit 92, the first sun gear S1 and the second sun gear S2 are connected to each other and connected to the input shaft 16, and are driven to rotate. The first carrier CA1 and the second ring gear R2 are connected to the case 12. It is fixed integrally with the non-rotatable. With this configuration, the first ring gear R1 is decelerated and rotated with respect to the input shaft 16, and the second carrier CA2 is further decelerated and rotated than the first ring gear R1, so that the first ring gear R1 is the first ring gear R1. The second carrier CA2 corresponds to the intermediate output member M1, and the second carrier CA2 corresponds to the second intermediate output member M2.

  The first transmission unit 92 is a member (S1, S2) that is connected to the input shaft 16 and driven to rotate by connecting some of the elements of the first planetary gear unit 94 and the second planetary gear unit 96 to each other. The first intermediate output member M1 (R1), the second intermediate output member M2 (CA2), and the members (CA1, R2) that are always stopped rotating are the same as in the first embodiment. is there. As described above, the second transmission unit 30 is the same as that in the first embodiment.

  In the collinear diagram shown in FIG. 14, the vertical lines of the first transmission unit 92 are, in order from the left, the first carrier CA1, the second ring gear R2, the second intermediate output member M2 (CA2), the first intermediate Since the output member M1 (R1), the first sun gear S1 and the second sun gear S2 are represented, and the second transmission unit 30 has the same configuration as that of the first embodiment, each vertical line is the same as that of the first embodiment. is there. Accordingly, the alignment chart is similar to the alignment chart of the first embodiment of FIG. 2 based on the rotation element. Since the alignment chart is the same as that of the first embodiment, the operation table for explaining the engagement elements and the gear ratio when each gear is established is as shown in FIG. Therefore, the same effect as the first embodiment can be obtained.

  As described above, the transmission 90 according to the present embodiment also obtains two reduced rotations in addition to the rotation speed of the input shaft 16 by reducing the rotation of the input shaft 16 in the first transmission unit 92, and thus four rotations. In the second transmission unit 30 having the elements RE1 to RE4, the five clutches C1 to C5, and the two brakes B1 and B2, the three types of rotational speeds of the first transmission unit 92 are further shifted, so that the gear ratio step is performed. A 10-speed shift is possible while maintaining a good balance.

  Next, a seventh embodiment of the present invention will be described. FIG. 15 is a skeleton diagram illustrating the configuration of the transmission 100 according to the seventh embodiment of the present invention. FIG. 16 is a collinear diagram showing the rotational speeds of the rotating elements at each gear stage of the transmission 100. This transmission 100 also differs from the transmission 10 of the first embodiment only in the configuration of the first transmission unit 102, and the second transmission unit 30 that is the same as the transmission 10 of the first embodiment. It has.

  The first transmission unit 102 is mainly configured by a double pinion type first planetary gear unit 104 and a single pinion type second planetary gear unit 106, and the first planetary gear unit 104 is a first front planetary gear unit. The second planetary gear device 106 corresponds to a second front planetary gear device. The first planetary gear device 104 includes a first sun gear S1, a plurality of pairs of first pinion gears P1 that mesh with each other, a first carrier CA1 that supports the first pinion gears P1 so as to rotate and revolve, and a first pinion gear P1. The first planetary gear unit 106 supports the second sun gear S2, the second pinion gear P2, and the second pinion gear P2 so as to be capable of rotating and revolving. A second ring gear R2 that meshes with the second sun gear S2 via the second carrier CA2 and the second pinion gear P2 is provided.

  In the first transmission unit 102, the second sun gear S2 is connected to the input shaft 16 and rotated, the first carrier CA1 and the second carrier CA2 are connected to each other, and the first ring gear R1 and the second ring gear R2 are connected. Are connected to each other, and the first sun gear S1 is integrally fixed to the case 12 so that it cannot rotate. With this configuration, the first carrier CA1 and the second carrier CA2 are coupled to each other and rotated at a reduced speed with respect to the input shaft 16, and the first ring gear R1 and the second ring gear R2 are coupled to each other, and Since the first carrier CA1 and the second carrier CA2 are rotated more slowly than the first carrier CA1 and the second carrier CA2, the first carrier CA1 and the second carrier CA2 correspond to the first intermediate output member M1, and the first ring gear R1 and the second ring gear R2 are the first. 2 corresponds to the intermediate output member M2.

  The first speed change unit 102 is a member (S2) that is connected to the input shaft 16 and is driven to rotate by connecting some of the elements of the first planetary gear device 104 and the second planetary gear device 106 to each other. The same as the first embodiment in that the first intermediate output member M1 (CA1, CA2), the second intermediate output member M2 (R1, R2), and the member (S1) that is always stopped are configured. is there. As described above, the second transmission unit 30 is the same as that in the first embodiment.

  In the collinear diagram shown in FIG. 16, the vertical lines of the first transmission unit 102 indicate, in order from the left, the first sun gear S1, the second intermediate output member M2 (R1, R2), and the first intermediate output member M1 ( CA1, CA2), the second sun gear S2, and the second transmission 30 is the same as in the first embodiment, so that each vertical line is the same as in the first embodiment. Accordingly, the alignment chart is similar to the alignment chart of the first embodiment of FIG. 2 based on the rotation element. Further, since the alignment chart is the same as that of the first embodiment, the engagement elements when establishing the respective gear positions are the same as those shown in FIG. 3 described above, and the gear ratios of the respective gear stages and The gear ratio step is a suitable gear ratio step and gear ratio step as shown in FIG. 17 by appropriately setting the gear ratio of each planetary gear device. Therefore, the same effect as the first embodiment can be obtained.

  As described above, the transmission 100 according to the present embodiment also obtains two reduced rotations in addition to the rotation speed of the input shaft 16 by reducing the rotation of the input shaft 16 in the first transmission unit 102, so that four rotations are performed. In the second transmission unit 30 having the elements RE1 to RE4, the five clutches C1 to C5, and the two brakes B1 and B2, the three types of rotational speeds of the first transmission unit 102 are further shifted, so that the gear ratio step is performed. A 10-speed shift is possible while maintaining a good balance.

  Next, an eighth embodiment of the present invention will be described. FIG. 18 is a skeleton diagram illustrating the configuration of the transmission 110 according to the eighth embodiment of the present invention. FIG. 19 is a collinear diagram showing the rotational speed of the rotating element at each gear stage of the transmission 110. This transmission 110 also differs from the transmission 10 of the first embodiment only in the configuration of the first transmission unit 112, and is the same as the second transmission unit 30 of the transmission 10 of the first embodiment. It has.

  The first transmission unit 112 is mainly configured by a double pinion type first planetary gear unit 114 and a single nonion type second planetary gear unit 116, and the first planetary gear unit 114 is a first front planetary gear unit. The second planetary gear device 116 corresponds to a second front planetary gear device. The first planetary gear device 114 includes a first sun gear S1, a plurality of pairs of first pinion gears P1 that mesh with each other, a first carrier CA1 that supports the first pinion gears P1 so as to rotate and revolve, and a first pinion gear P1. The second planetary gear unit 116 supports the second sun gear S2, the second pinion gear P2, and the second pinion gear P2 so that they can rotate and revolve. A second ring gear R2 that meshes with the second sun gear S2 via the second carrier CA2 and the second pinion gear P2 is provided.

  In the first transmission unit 112, the second sun gear S2 is connected to the input shaft 16 and rotated, the first sun gear S1 and the second carrier CA2 are connected to each other, and the first ring gear R1 and the second ring gear are connected. R2 is connected to each other, and the first carrier CA1 is integrally fixed to the case 12 so that it cannot rotate. With this configuration, the first sun gear S1 and the second carrier CA2 are decelerated and rotated with respect to the input shaft 16, and the first ring gear R1 and the second ring gear R2 connected to each other are connected to the first sun gear S1 and the second The first sun gear S1 and the second carrier CA2 that are coupled to each other correspond to the first intermediate output member M1, and the first ring gear R1 and the second ring gear R2 that are coupled to each other. Corresponds to the second intermediate output member M2.

  The first transmission unit 112 includes a member (S2) that is connected to the input shaft 16 and driven to rotate by connecting some of the elements of the first planetary gear device 114 and the second planetary gear device 116 to each other. The same as the first embodiment in that the first intermediate output member M1 (S1, CA2), the second intermediate output member M2 (R1, R2), and the member (CA1) that is always stopped are configured. is there. As described above, the second transmission unit 30 is the same as that in the first embodiment.

  In the collinear diagram shown in FIG. 19, each vertical line of the first transmission unit 112 indicates, in order from the left, the first carrier CA1, the second intermediate output member M2 (R1, R2), and the first intermediate output member M1 ( S1, CA2), and the second sun gear S2, and the second transmission 30 is the same as that of the first embodiment, so that each vertical line is the same as that of the first embodiment. Accordingly, the alignment chart is similar to the alignment chart of the first embodiment of FIG. 2 based on the rotation element. Further, since the alignment chart is the same as that of the first embodiment, the engagement elements when establishing the respective gear stages are as shown in FIG. 3 described above, and the transmissions and gear ratios of the respective gear stages. The steps are as shown in FIG. Therefore, the same effect as the first embodiment can be obtained.

  As described above, the transmission 110 of the present embodiment also obtains two reduced rotations in addition to the rotation speed of the input shaft 16 by decelerating the rotation of the input shaft 16 in the first transmission unit 112, so that four rotations are performed. In the second transmission unit 30 having the elements RE1 to RE4, the five clutches C1 to C5, and the two brakes B1 and B2, the three types of rotational speeds of the first transmission unit 112 are further shifted, so that the gear ratio step is performed. A 10-speed shift is possible while maintaining a good balance.

  Next, a ninth embodiment of the present invention will be described. FIG. 20 is a skeleton diagram illustrating the configuration of the transmission 120 according to the ninth embodiment of the present invention. FIG. 21 is a collinear diagram showing the rotational speeds of the rotating elements at each gear stage of the transmission 120. This transmission 120 also differs from the transmission 10 of the first embodiment only in the configuration of the first transmission unit 122, and the second transmission unit 30 is the same as the transmission 10 of the first embodiment. It has.

  The first transmission unit 122 is mainly composed of a double-pinion type first planetary gear unit 124 and a single-pinion type second planetary gear unit 126, and the first planetary gear unit 124 is a first front planetary gear unit. The second planetary gear device 126 corresponds to a second front planetary gear device. The first planetary gear unit 124 includes a first sun gear S1, a plurality of pairs of first pinion gears P1 that mesh with each other, a first carrier CA1 that supports the first pinion gear P1 so as to rotate and revolve, and a first pinion gear P1. The first planetary gear device 126 supports the second sun gear S2, the second pinion gear P2, and the second pinion gear P2 so as to be capable of rotating and revolving. A second ring gear R2 that meshes with the second sun gear S2 via the second carrier CA2 and the second pinion gear P2 is provided.

  In the first transmission unit 122, the first carrier CA1 and the second sun gear S2 are connected to the input shaft 16 and driven to rotate, the first ring gear R1 and the second carrier CA2 are connected to each other, and the first sun gear S1. Is integrally fixed to the case 12 and cannot be rotated. With this configuration, the first ring gear R1 and the second carrier CA2 are coupled to each other and rotated at a reduced speed with respect to the input shaft 16, and the second ring gear R2 is more than the first ring gear R1 and the second carrier CA2. Since the rotation is further reduced, the first ring gear R1 and the second carrier CA2 connected to each other correspond to the first intermediate output member M1, and the second ring gear R2 corresponds to the second intermediate output member M2.

  The first transmission unit 122 is a member (CA1, S2) that is connected to the input shaft 16 and is driven to rotate by connecting some of the elements of the first planetary gear device 124 and the second planetary gear device 126 to each other. The first intermediate output member M1 (R1, CA2), the second intermediate output member M2 (R2), and the member (S1) whose rotation is always stopped are the same as in the first embodiment. is there. As described above, the second transmission unit 30 is the same as that in the first embodiment.

  In the collinear diagram shown in FIG. 21, the vertical lines of the first transmission unit 122 indicate, in order from the left, the first sun gear S1, the second intermediate output member M2 (R2), and the first intermediate output member M1 (R1, R1). CA2), the first carrier CA1 and the second sun gear S2, and the second transmission unit 30 has the same configuration as that of the first embodiment, so that each vertical line is the same as that of the first embodiment. Accordingly, the alignment chart is similar to the alignment chart of the first embodiment of FIG. 2 based on the rotation element. Further, since the alignment chart is the same as that of the first embodiment, the engagement elements when establishing the respective gear stages are as shown in FIG. 3 described above, and the gear ratio and gear ratio of each gear stage are as follows. The steps are as shown in FIG. Therefore, the same effect as the first embodiment can be obtained.

  As described above, the transmission 120 according to the present embodiment also obtains two reduced rotations in addition to the rotation speed of the input shaft 16 by decelerating the rotation of the input shaft 16 in the first transmission unit 122. In the second transmission unit 30 having the elements RE1 to RE4, the five clutches C1 to C5, and the two brakes B1 and B2, the three types of rotational speeds of the first transmission unit 122 are further shifted, so that the gear ratio step is performed. A 10-speed shift is possible while maintaining a good balance.

  Next, a tenth embodiment of the present invention will be described. FIG. 22 is a skeleton diagram illustrating the configuration of the transmission 130 according to the tenth embodiment of the present invention. FIG. 23 is a collinear diagram showing the rotational speeds of the rotating elements at each gear stage of the transmission 130. This transmission 130 also differs from the transmission 10 of the first embodiment only in the configuration of the first transmission section 132, and the second transmission section 30 that is the same as the transmission 10 of the first embodiment. It has.

  The first transmission unit 132 is mainly configured by a double pinion type first planetary gear unit 134 and a single pinion type second planetary gear unit 136, and the first planetary gear unit 134 is a first front planetary gear unit. The second planetary gear device 136 corresponds to a second front planetary gear device. The first planetary gear unit 124 includes a first sun gear S1, a plurality of pairs of first pinion gears P1 that mesh with each other, a first carrier CA1 that supports the first pinion gear P1 so as to rotate and revolve, and a first pinion gear P1. The second planetary gear device 136 supports the second sun gear S2, the second pinion gear P2, and the second pinion gear P2 so that they can rotate and revolve. A second ring gear R2 that meshes with the second sun gear S2 via the second carrier CA2 and the second pinion gear P2 is provided.

  In the first transmission unit 132, the first sun gear S1 and the second sun gear S2 are connected to the input shaft 16 and driven to rotate, the first ring gear R1 and the second carrier CA2 are connected to each other, and the first carrier CA1. Is integrally fixed to the case 12 and cannot be rotated. With this configuration, the first ring gear R1 and the second carrier CA2 are coupled to each other and rotated at a reduced speed with respect to the input shaft 16, and the second ring gear R2 is more than the first ring gear R1 and the second carrier CA2. Since the rotation is further reduced, the first ring gear R1 and the second carrier CA2 connected to each other correspond to the first intermediate output member M1, and the second ring gear R2 corresponds to the second intermediate output member M2.

  The first transmission unit 132 is a member (S1, S2) that is connected to the input shaft 16 and driven to rotate by connecting some of the elements of the first planetary gear unit 134 and the second planetary gear unit 136 to each other. The first intermediate output member M1 (R1, CA2), the second intermediate output member M2 (R2), and the member (CA1) that is always rotated and stopped are the same as the first embodiment. is there. As described above, the second transmission unit 30 is the same as that in the first embodiment.

  In the collinear diagram shown in FIG. 23, each vertical line of the first transmission unit 132 indicates, in order from the left, the first carrier CA1, the second intermediate output member M2 (R2), and the first intermediate output member M1 (R1, R1). CA2), which represents the first sun gear S1 and the second sun gear S2, and the second transmission 30 is the same as the first embodiment, so that each vertical line is the same as in the first embodiment. Accordingly, the alignment chart is similar to the alignment chart of the first embodiment of FIG. 2 based on the rotation element. Further, since the alignment chart is the same as that of the first embodiment, the engagement elements when establishing the respective gear stages are as shown in FIG. 3 described above, and the transmissions and gear ratios of the respective gear stages. The steps are as shown in FIG. Therefore, the same effect as the first embodiment can be obtained.

  As mentioned above, although the Example of this invention was described in detail based on drawing, this invention is applied also in another aspect.

  For example, in each of the above-described embodiments, the engine 8 and the torque converter 14 are directly connected via the crankshaft 9. However, the engine 8 and the torque converter 14 may be operatively connected via, for example, a gear, a belt, etc. There is no need to be placed on the mind. The engine 8 may be another driving force source such as an electric motor.

  In each of the above-described embodiments, the torque converter 14 with the lock-up clutch 13 is provided between the engine 8 and the input shaft 16 as a fluid transmission device. However, even if the lock-up clutch 13 is not provided. Good. Further, instead of the torque converter 14, a fluid coupling, a magnetic powder type electromagnetic clutch, a multi-plate or a single-plate hydraulic clutch may be provided.

  The above description is only an embodiment, and the present invention can be implemented in variously modified and improved forms based on the knowledge of those skilled in the art.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a skeleton diagram illustrating a main part configuration of a multi-stage transmission that is an embodiment of the present invention. It is a collinear diagram explaining the action | operation of the transmission of FIG. FIG. 2 is an operation table showing a relationship between a shift stage of the transmission of FIG. 1 and an operation of a hydraulic friction engagement device necessary to establish it. It is a figure which illustrates the signal input into the electronic controller for controlling the transmission of FIG. 1, and the signal output from the electronic controller. It is a skeleton diagram explaining the principal part structure of the multi-stage transmission in 2nd Example of this invention. FIG. 6 is a collinear diagram illustrating the operation of the transmission of FIG. 5. It is a skeleton diagram explaining the principal part structure of the multi-stage transmission in 3rd Example of this invention. FIG. 8 is a collinear diagram illustrating the operation of the transmission of FIG. 7. It is a skeleton figure explaining the principal part structure of the multi-stage transmission in 4th Example of this invention. FIG. 10 is a collinear diagram illustrating an operation of the transmission of FIG. 9. It is a skeleton diagram explaining the principal part structure of the multi-stage transmission in 5th Example of this invention. FIG. 12 is a collinear diagram illustrating the operation of the transmission of FIG. 11. It is a skeleton figure explaining the principal part structure of the multi-stage transmission in 6th Example of this invention. FIG. 14 is a collinear diagram illustrating an operation of the transmission of FIG. 13. It is a skeleton diagram explaining the principal part structure of the multi-stage transmission in 7th Example of this invention. FIG. 16 is a collinear diagram illustrating an operation of the transmission of FIG. 15. FIG. 16 is an operation table showing the relationship between the gear position of the transmission of FIG. 15 and the operation of the hydraulic friction engagement device necessary to establish it. FIG. It is a skeleton diagram explaining the principal part structure of the multi-stage transmission in 8th Example of this invention. FIG. 19 A collinear diagram illustrating an operation of the transmission of FIG. 18. It is a skeleton figure explaining the principal part structure of the multi-stage transmission in 9th Example of this invention. FIG. 21 A collinear diagram illustrating an operation of the transmission of FIG. 20. It is a skeleton diagram explaining the principal part structure of the multi-stage transmission in 10th Example of this invention. FIG. 23 A collinear diagram illustrating an operation of the transmission of FIG. 22.

Explanation of symbols

10, 50, 60, 70, 80, 90, 100, 110, 120, 130: Multi-stage transmission 16: Input shaft (input rotation member)
18, 54, 64, 74, 84, 94, 104, 114, 124, 134: First planetary gear device (first front planetary gear device)
20, 56, 66, 76, 86, 96, 106, 116, 126, 136: second planetary gear device (second front planetary gear device)
28, 52, 62, 72, 82, 92, 102, 112, 122, 132: first transmission 22: third planetary gear device (first rear planetary gear device)
24: Fourth planetary gear device (second rear planetary gear device)
30: 2nd speed change part M1: 1st intermediate output member, M2: 2nd intermediate output member, RE1: 1st rotation element, RE2: 2nd rotation element, RE3: 3rd rotation element, RE4: 4th rotation element, C1: first clutch, C2: second clutch, C3: third clutch, C4: fourth clutch, B1: first brake, B2: second brake

Claims (15)

A first transmission portion having a first intermediate output member that decelerates and transmits the rotation of the input rotation member, and a second intermediate output member that decelerates and transmits the rotation of the input rotation member to a greater degree than the first intermediate output member; The sun gear, the carrier, and the ring gear of the two sets of planetary gear devices are connected to each other, and the second transmission unit is configured with four rotating elements.
On the collinear chart in which the rotational speeds of the four rotating elements can be represented by straight lines, the four rotating elements are sequentially arranged from one end to the other end in the order of a first rotating element, a second rotating element, a third rotating element, When the fourth rotating element is used, the first clutch element that selectively connects the first intermediate output member and the fourth rotating element, and the input rotating member and the second rotating element are selectively connected. A second clutch element; a third clutch element that selectively connects the first intermediate output member and the first rotating element; and a fourth clutch that selectively connects the input rotating member and the first rotating element. A clutch element, a fifth clutch element that selectively connects the second intermediate output member and the first rotating element, a first brake element that selectively stops rotation of the first rotating element, and the second And a second brake element for selectively stopping the rotation element. Multi-speed transmission according to claim Rukoto. The first shift stage is established by engaging the first clutch element and the second brake element,
The second shift stage is established by engaging the first clutch element and the first brake element,
A third gear is established by engaging the first clutch element and the fifth clutch element,
The fourth shift stage is established by engaging the first clutch element and the third clutch element,
The fifth shift stage is established by engaging the first clutch element and the fourth clutch element,
A sixth shift stage is established by engaging the first clutch element and the second clutch element,
The seventh shift stage is established by engaging the second clutch element and the fourth clutch element,
The eighth shift stage is established by engaging the second clutch element and the third clutch element,
The multi-speed transmission according to claim 1, wherein the ninth shift stage is established by engaging the second clutch element and the fifth clutch element.   The multi-speed transmission according to claim 2, wherein the tenth speed is established by engaging the second clutch element and the first brake element. A first shift stage established by engaging the first clutch element and the second brake element;
A second shift stage established by engaging the first clutch element and the first brake element;
A third speed established by engaging the first clutch element and the fifth clutch element;
A fourth shift stage established by engaging the first clutch element and the third clutch element;
A fifth shift stage established by engaging the first clutch element and the fourth clutch element;
A sixth shift stage established by engaging the first clutch element and the second clutch element;
A seventh shift stage established by engaging the second clutch element and the fourth clutch element;
An eighth shift stage established by engaging the second clutch element and the third clutch element;
A ninth shift stage established by engaging the second clutch element and the fifth clutch element;
A tenth shift speed established by engagement of the second clutch element and the first brake element;
2. The multi-stage shift according to claim 1, wherein the shift is performed using a 9th speed stage excluding any one of the first speed stage, the second speed stage, and the third speed stage. Machine. A multi-stage transmission according to any one of claims 1 to 4,
The first transmission unit includes a single pinion type first front planetary gear device and a double pinion type second front planetary gear device,
The ring gear of the first front planetary gear device is always stopped rotating;
A ring gear of the second front planetary gear set is the first intermediate output member;
The sun gear of the first front planetary gear device and the sun gear of the second front planetary gear device are connected to each other and connected to the input rotation member,
The multi-stage transmission, wherein the carrier of the first front planetary gear unit and the carrier of the second front planetary gear unit are connected to each other and serve as the second intermediate output member. A multi-stage transmission according to any one of claims 1 to 4,
The first transmission unit includes a single pinion type first front planetary gear device and a double pinion type second front planetary gear device,
The ring gear of the first front planetary gear device is always stopped rotating;
A ring gear of the second front planetary gear set is the first intermediate output member;
A sun gear of the first front planetary gear device and a carrier of the second front planetary gear device are connected to each other and connected to the input rotation member;
The multi-stage transmission, wherein the carrier of the first front planetary gear unit and the sun gear of the second front planetary gear unit are connected to each other and serve as the second intermediate output member. A multi-stage transmission according to any one of claims 1 to 4,
The first transmission unit includes a single pinion type first front planetary gear device and a double pinion type second front planetary gear device,
The ring gear of the first front planetary gear device and the sun gear of the second front planetary gear device are always stopped rotating,
A ring gear of the second front planetary gear set is the first intermediate output member;
A sun gear of the first front planetary gear device and a carrier of the second front planetary gear device are connected to each other and connected to the input rotation member;
The multi-stage transmission, wherein the carrier of the first front planetary gear unit is the second intermediate output member. A multi-stage transmission according to any one of claims 1 to 4,
The first transmission unit includes a single pinion type first front planetary gear device and a double pinion type second front planetary gear device,
The ring gear of the first front planetary gear device and the carrier of the second front planetary gear device are always stopped rotating,
The sun gear of the second front planetary gear device is the first intermediate output member,
A sun gear of the first front planetary gear set is connected to the input rotating member;
The multi-stage transmission, wherein the carrier of the first front planetary gear device and the ring gear of the second front planetary gear device are connected to each other and serve as the second intermediate output member. A multi-stage transmission according to any one of claims 1 to 4,
The first transmission unit includes a single pinion type first front planetary gear device and a double pinion type second front planetary gear device,
A sun gear of the first front planetary gear set is connected to the input rotating member;
A carrier of the first front planetary gear device and a ring gear of the second front planetary gear device are connected to each other to form the second intermediate output member;
The ring gear of the first front planetary gear device and the sun gear of the second front planetary gear device are always stopped rotating,
The multi-stage transmission, wherein the carrier of the second front planetary gear unit is the first intermediate output member. A multi-stage transmission according to any one of claims 1 to 4,
The first transmission unit includes a double pinion type first front planetary gear device and a single pinion type second front planetary gear device,
The sun gear of the first front planetary gear device and the sun gear of the second front planetary gear device are connected to each other and connected to the input rotation member,
The carrier of the second front planetary gear set is the second intermediate output member;
The carrier of the first front planetary gear device and the ring gear of the second front planetary gear device are always stopped rotating,
The multi-stage transmission, wherein a ring gear of the first front planetary gear unit is the first intermediate output member. A multi-stage transmission according to any one of claims 1 to 4,
The first transmission unit includes a double pinion type first front planetary gear device and a single pinion type second front planetary gear device,
A sun gear of the second front planetary gear set is connected to the input rotating member;
A ring gear of the first front planetary gear device and a ring gear of the second front planetary gear device are connected to each other and serve as the second intermediate output member;
The sun gear of the first front planetary gear device is always stopped rotating,
The multi-stage transmission, wherein the carrier of the first front planetary gear unit and the carrier of the second front planetary gear unit are connected to each other and serve as the first intermediate output member. A multi-stage transmission according to any one of claims 1 to 4,
The first transmission unit includes a double pinion type first front planetary gear device and a single pinion type second front planetary gear device,
A sun gear of the second front planetary gear set is connected to the input rotating member;
A ring gear of the first front planetary gear device and a ring gear of the second front planetary gear device are connected to each other to form the second intermediate output member;
The carrier of the first front planetary gear set is always stopped rotating;
The multi-stage transmission, wherein the sun gear of the first front planetary gear device and the carrier of the second front planetary gear device are connected to each other and serve as the first intermediate output member. A multi-stage transmission according to any one of claims 1 to 4,
The first transmission unit includes a double pinion type first front planetary gear device and a single pinion type second front planetary gear device,
A carrier of the first front planetary gear device and a sun gear of the second front planetary gear device are connected to each other and to the input rotating member;
A ring gear of the second front planetary gear set is a second intermediate output member;
The sun gear of the first front planetary gear device is always stopped rotating,
A multi-stage transmission, wherein a ring gear of the first front planetary gear device and a carrier of the second front planetary gear device are connected to each other and serve as the first intermediate output member. A multi-stage transmission according to any one of claims 1 to 4,
The first transmission unit includes a double pinion type first front planetary gear device and a single pinion type second front planetary gear device,
The sun gear of the first front planetary gear device and the sun gear of the second front planetary gear device are connected to each other and connected to the input rotation member,
A ring gear of the second front planetary gear set is a second intermediate output member;
The carrier of the first front planetary gear set is always stopped rotating;
A multi-stage transmission, wherein a ring gear of the first front planetary gear device and a carrier of the second front planetary gear device are connected to each other and serve as the first intermediate output member. The multi-stage transmission according to any one of claims 1 to 14,
The second transmission unit includes a double pinion type first rear planetary gear device and a single pinion type second rear planetary gear device,
A carrier of the first rear planetary gear device and a sun gear of the second rear planetary gear device are connected to each other to constitute the first rotating element;
A ring gear of the first rear planetary gear device and a carrier of the second rear planetary gear device are connected to each other to form the second rotating element;
The third rotating element is constituted by the ring gear of the second rear planetary gear device,
The multi-stage transmission, wherein the fourth rotating element is constituted by a sun gear of the first rear planetary gear unit.

Images