摘要:
A family of transmissions has three planetary gear sets controlled by five torque transmitting mechanisms that are selectively operable to provide six forward speed ratios and a reverse ratio between an input shaft and an output shaft. The planetary gear sets may be of the single or double pinion gear type and each include three members such as a sun gear member, a ring gear member and a planet carrier assembly member. First and second members of the first planetary gear set are continuously connected with respective first and second members of the second planetary gear set. A first member of the third planetary gear set is continuously connected to a stationary component. The input shaft is continuously connected to at least one member of one of the planetary gear sets and the output shaft is connected to at least one member of one of the planetary gear sets. The five torque transmitting mechanisms are engaged in pairs to provide selective interconnections between members of the planetary gear sets, the input shaft, the output shaft, and the stationary component.
摘要:
A powertrain incorporates three planetary gear sets and five rotating torque transmitting mechanisms in a compact structure having minimum mechanical content to provide at least six forward speed ratios and a reverse ratio between an input shaft and an output shaft. One of the planetary gear sets has three rotatable members with one member continuously connected with the input shaft, another member continuously connected with the output shaft and a further member that is non-continuously interconnected. Another and a further of the planetary gear sets each has three members with respective first members being continuously interconnected and respective second members being continuously interconnected through first and second continuous interconnections, respectively. The third member of the other planetary gear set is non-continuously connected and the third member of the further planetary gear set is continuously connected with a stationary member such as a transmission housing. The five rotating torque transmitting mechanisms are selectively engaged to provide further interconnections between various members of the planetary gear sets.
摘要:
A family of power transmissions, which are utilized in a powertrain, include three planetary gearsets and five torque-transmitting mechanisms. The torque-transmitting mechanisms are either five rotating type torque-transmitting mechanisms or four rotating type torque-transmitting mechanisms and one stationary type torque-transmitting mechanism. Each of the three planetary gearsets all include three members represented by a sun gear member, a ring gear member, and planet carrier assembly member. The planet carrier assembly member may be of either the single pinion or double pinion. In each of the family members, at least four of the planetary members are interconnected continuously with either another planetary member, the input shaft, the output shaft, or a stationary housing of the transmission. At least four of the planetary members are noncontinuously interconnected with another planetary member, the input shaft, the output shaft, or the stationary housing. However, these four members are selectively interconnectible with other members through the use of the torque-transmitting mechanisms. In each family member the torque-transmitting mechanisms are engaged in combinations of three to establish at least six forward speed ratios and the one reverse speed ratio between the input shaft and the output shaft.