Abstract: An automatic transmission includes an input shaft, a first planetary gear mechanism, a second planetary gear mechanism, a third planetary gear mechanism, a fourth planetary gear mechanism, a first engagement device, a second engagement device, a third engagement device, a fourth engagement device, a fifth engagement device, a sixth engagement device, and a seventh engagement device. Ten forward gears of the automatic transmission are established by bringing at least three of the first to seventh engagement devices into the engagement state.

Abstract: An automatic transmission includes an input shaft, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, and an engagement mechanism. The engagement mechanism includes first to seventh engagement devices. Nine or more forward transmission gear ratios are established by setting each of at least three engagement devices among the first to seventh engagement devices in an engagement mode.

Abstract: An automatic transmission includes an input shaft, an output member, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, and an engagement mechanism. Each of a plurality of gear ratios is provided by setting at least three of first to third clutches and first to third brakes in a connection state.

Abstract: An automatic transmission includes an input shaft, first to fourth planetary gear mechanisms and first to seventh engagement devices. Ten forward gears of the automatic transmission are established by bringing at least three of the first to seventh engagement devices into an engagement state.

Abstract: An automatic transmission includes an input shaft, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, and an engagement mechanism. The engagement mechanism includes first to seventh engagement devices. Nine or more forward transmission gear ratios are established by setting each of at least three engagement devices among the first to seventh engagement devices in an engagement mode.

Abstract: An automatic transmission includes an input shaft, a first planetary gear mechanism, a second planetary gear mechanism, a third planetary gear mechanism, a fourth planetary gear mechanism, a first engagement device, a second engagement device, a third engagement device, a fourth engagement device, a fifth engagement device, a sixth engagement device, and a seventh engagement device. Ten forward gears of the automatic transmission are established by bringing at least three of the first to seventh engagement devices into the engagement state.

Abstract: An automatic transmission includes an input shaft rotatable by power from a driving source. A transmission unit is capable of changing a speed of rotation of the input shaft to any one of speeds at gears. The transmission unit includes at least one planetary gear mechanism having three elements. An output member outputs the transferred power with a speed changed by the transmission unit. A transfer mechanism switches between a transfer state of power between a motor connection element and the output member and an open state of no transfer of power. The transfer mechanism is in the transfer state in a low-speed gear range and in the open state in a high-speed gear range.

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: An automatic transmission includes an input shaft, an output member, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, and an engagement mechanism. The engagement mechanism includes first to sixth engagement assemblies. Each of a plurality of gear ratios is provided by setting three of the first to sixth engagement assemblies in a engagement state.

Abstract: In a driving apparatus for a hybrid vehicle having an internal combustion engine and first and second electric rotating machines, it is configured to have a speed increasing mechanism that increases speed of an output of the engine inputted through an input shaft and transmits it to the first electric rotating machine; a speed reducing mechanism that reduces speed of an output of the second electric rotating machine and transmits it to an output shaft; a first clutch adapted to connect and disconnect a first driving force transmission path coupling the speed increasing mechanism and the output shaft; and a second clutch adapted to connect and disconnect a second driving force transmission path coupling the engine and the output shaft.

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 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 an input shaft, an output member, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, and an engagement mechanism. The engagement mechanism includes first to sixth engagement assemblies. Each of a plurality of gear ratios is provided by setting three of the first to sixth engagement assemblies in a engagement state.

Abstract: An automatic transmission includes an input shaft, an output member, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, and an engagement mechanism. Each of a plurality of gear ratios is provided by setting at least three of first to third clutches and first to third brakes in a connection state.

Abstract: An automatic transmission includes an input shaft, an output member, a first planetary gear system, a second planetary gear system, a third planetary gear system, a fourth planetary gear system, and an engagement mechanism. The input shaft is configured to be rotated with power of a driving source relative to the transmission case. The output member is to output rotation of the input shaft using multiple gear-shifting. The multiple gear-shifting is provided by setting at least three of first to third clutches and first to third brakes in a connection state.

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: 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 includes an input shaft rotatable by power from a driving source. A transmission unit is capable of changing a speed of rotation of the input shaft to any one of speeds at gears. The transmission unit includes at least one planetary gear mechanism having three elements. An output member outputs the transferred power with a speed changed by the transmission unit. A transfer mechanism switches between a transfer state of power between a motor connection element and the output member and an open state of no transfer of power. The transfer mechanism is in the transfer state in a low-speed gear range and in the open state in a high-speed gear range.