Abstract: An automatic transmission includes a first single-pinion planetary gear mechanism including a first sun gear, a first ring gear, and a first carrier that each correspond to one of first to third elements in a velocity diagram. The second element is connected to the input shaft. A second single-pinion planetary gear mechanism including a second sun gear, a second ring gear, and a second carrier that each correspond to one of fourth to sixth elements in a velocity diagram. The fourth element is connected to the first element to form a first connected body. A double-pinion third planetary gear mechanism includes a third sun gear, a third ring gear, and a third carrier that each correspond to one of seventh to ninth elements in a velocity diagram. The eighth element is connected to the fifth element to form a second connected body that is connected to the output member.

Abstract: An automatic transmission includes a single-pinion first planetary gear mechanism including a first sun gear, a first ring gear, and a first carrier that each correspond to one of first to third elements in a velocity diagram. A double-pinion second planetary gear mechanism includes a second sun gear, a second ring gear, and a second carrier that each correspond to one of fourth to sixth elements in a velocity diagram. The fifth element is connected to the second element to form a first connected body that is connected to an input shaft. A single-pinion third planetary gear mechanism includes a third sun gear, a third ring gear, and a third carrier that each correspond to one of seventh to ninth elements in a velocity diagram. The eighth element is connected to an output member, and the ninth element is connected to the third element to form a second connected body.

Abstract: An automatic transmission includes a first single-pinion planetary gear mechanism including a first sun gear, a first ring gear, and a first carrier that respectively correspond to first to third elements in a velocity diagram. A second single-pinion planetary gear mechanism includes a second sun gear, a second ring gear, and a second carrier that respectively correspond to fourth to sixth elements in a velocity diagram. The fourth element is connected to the first element to form a first connected body. A double-pinion third planetary gear mechanism includes a third sun gear, a third ring gear, and a third carrier that respectively correspond to seventh to ninth elements in a velocity diagram. The ninth element is connected to the third element to form a second connected body. The eighth element is connected to the fifth element to form a third connected body.

Abstract: Provided is an automatic transmission capable of reducing friction loss. A first element (Sa) is coupled with an input shaft (2), a second element Ca is coupled with a first driving gear (G1a). A first driven gear (G1b) is pivotally supported on an output shaft (3), a seventh element (Rc) is coupled with a second driving gear (G2a), and a second driven gear (G2b) is fixed to the output shaft (3). A third element (Ra) and a fifth element (Cb) are coupled to form a first coupling body, a sixth element (Rb) and a ninth element (Sc) are coupled to form a second coupling body.

Abstract: Provided is an automatic transmission capable of reducing friction loss. The automatic transmission is provided with an input shaft (2) coupled with a sun gear (Sa), an output member (3), a first to third planetary gear mechanisms (4, 5, 6), a first engagement mechanism (C1) coupling the input shaft (2) with a ring gear (Rc) releasably, a second engagement mechanism (C2) coupling a carrier (Ca) with a carrier (Cc) releasably, a third engagement mechanism (C3) coupling the carrier (Ca) with a second coupling body (Rb-Sc) releasably, a fourth engagement mechanism (B1) fixing a first coupling body (Ra-Cb) to a transmission case (1) releasably, a fifth engagement mechanism (B2) fixing a sun gear (Sb) to the transmission case (1) releasably, and a sixth engagement mechanism (B3) fixing the ring gear (Rc) to the transmission case (1) releasably.

Abstract: In a transmission including a multiple planetary mechanism into which power from a driving source is inputted through an input shaft, clutches are provided respectively for three components among a plurality of components included in the multiple planetary mechanism and are respectively disposed and capable of switching between connection and disconnection of transmission of power between the input shaft and the three components. Brakes are respectively provided between a transmission case and components among the plurality of components. The brakes are configured to make the components stationary relative to the transmission case. Two transmission mechanisms different from each other in speed reduction ratio are provided between an output shaft, which is parallel with the input shaft, and two components among the plurality of components. The two transmission mechanisms are provided in such a manner as to be capable of selectively switching transmission of the power to the output shaft side.

Abstract: A second clutch (C2) which couples a carrier (Cr) of the compound planetary gear set (6) to a speed ring gear (Rf) of the single planetary gear set (5) is arranged between the single planetary gear set (5) and the compound planetary gear set (6). Then, a first clutch (C1) which couples a second sun gear (Sr2) of the compound planetary gear set (6) to a carrier (Cf) of the single planetary gear set (5), and a third clutch (C3) which couples a sun gear (Sr1) of the compound planetary gear set (6) to carrier (Cf) of the single planetary gear set (5) are arranged at the side of the compound planetary gear set (6) opposite to the single planetary gear set (5).

Abstract: An automatic transmission comprises a planetary gear train (PG) including a sun gear (S) connected to a first main shaft (3), a carrier (C) and a ring gear (R); a first gear train (G1) including a first drive gear (6) connected to the ring gear (R), and a first driven gear (7) disposed rotatably over a countershaft (5) and meshed with the first drive gear (6); a third gear train (G3) including a third drive gear (10) disposed rotatably with respect to the carrier (C), and a third driven gear (11) connected to the countershaft (5) and meshed with the third drive gear (10); a first brake (B1) for holding the ring gear (R) stationary, a first clutch (C1) for engaging/disengaging the first driven gear (7) to/from the countershaft (5); a third clutch (C3) for engaging/disengaging the third drive gear (10) to/from the carrier (C); and a fourth clutch (C4) for bringing the sun gear (S) and the ring gear (R) into engagement/disengagement with each other.

Abstract: The present invention includes an input side transmission unit that transforms the rotation of the input shaft that rotates by receiving input rotation into N steps, and transmits the transformed rotation to the counter shaft; and an output side transmission unit that includes a first planet gear train and a second planet gear train, and that transforms the rotation of the counter shaft and outputs the transformed rotation to the output shaft.

Abstract: An automatic transmission comprises a planetary gear train PG, a countershaft 5, which is disposed in parallel with the rotational axis of the planetary gear train PG, a first brake B1, a first gear train G1, a first clutch C1, a third gear train G3, a third clutch C3 and a fourth clutch C4. Furthermore, the planetary gear train PG comprises a sun gear S, which is connected to the first main shaft 3, a carrier C and a ring gear R. The first gear train G1 comprises a first drive gear 6, which is connected to the ring gear R, and a first driven gear 7, which is disposed rotatably over the countershaft 5 and meshes with the first drive gear 6. The third gear train G3 comprises a third drive gear 10, which is disposed rotatably with respect to the carrier C, and a third driven gear 11, which is connected to the countershaft 5 and meshes with the third drive gear 10.

Abstract: A transmission comprises a main shaft, a first countershaft parallel to the main shaft, a second countershaft disposed rotatably over the first countershaft, a third countershaft disposed coaxially with the first and second countershafts, first-third gear trains and a reverse gear train disposed rotationally between these parallel shafts, and a planetary gear train whose carrier is connected to the first countershaft, whose sun gear is connected to the second countershaft, and whose ring gear is connected to the third countershaft. The transmission comprises first-fourth clutches connecting or disconnecting the first-third gear trains and the reverse gear train to or from the main shaft and the first and second countershafts, a fifth clutch connecting the carrier and the sun gear or disconnecting them from each other, and a brake holding the sun gear stationary, the transmission realizing seven forward speed ranges and a reverse range.

Abstract: A starting motor 5 of an internal combustion engine 1 drives an input/output pulley 10 through a belt 11. Auxiliary machinery 6, 7 and 8 is driven by the engine 1 though the belt 11 while the engine is in operation. The starting motor 5 drives the auxiliary machinery 6, 7 and 8 through the belt 11 while the engine is in standstill. A speed change mechanism 41 transmits rotation of the starting motor 5 at a high gear ratio to the engine to start the same, and transmits rotation of an engine output shaft 2 at a lower gear ratio to the motor 5 to make the motor 5 generate power while the engine is in operation. The speed change mechanism 41 overlaps the pulley 10 at least partially axially of the output shaft 2. The pulley 10 defines an oil chamber 39 for containing lubricate oil.

Abstract: A transmission TM1 according to the present invention comprises a main shaft 3, a first countershaft 4, which is disposed in parallel with the main shaft 3, a second countershaft 5, which is disposed rotatably over the first countershaft 4, a third countershaft 6, which is disposed coaxially with the first and second countershafts 4 and 5, first˜third gear trains G1˜G3 and a reverse gear train GR, which are disposed rotationally between these parallel shafts, and a planetary gear train PG, whose carrier C is connected to the first countershaft 4, whose sun gear S is connected to the second countershaft 5, and whose ring gear R is connected to the third countershaft 6, respectively at their rotational axes.

Abstract: An automotive internal combustion engine control system drives auxiliary machinery by a starting motor while an internal combustion engine is at a standstill and efficiently regenerates energy by operating the starting motor as a power generator while the internal combustion engine is in operation. The output of the starting motor 5 capable of operating as a power generator is transmitted to an input/output pulley 10 mounted on the output shaft of the internal combustion engine 1 by an endless transmission belt 11 to start the internal combustion engine 1. The output of the engine is transmitted to auxiliary machinery 6, 7 and 8 by the endless transmission belt 11 while the internal combustion engine 1 is in operation. The output of the starting motor 5 is transmitted to the auxiliary machinery 6, 7 and 8 by the endless transmission belt 11 while the engine is in an intentional standstill.