STEPPED PLANETARY TRANSMISSION Russian patent published in 2025 - IPC F16H3/56 F16H37/08 

FIELD: vehicles; mechanical engineering.

SUBSTANCE: invention relates to stepped planetary transmission for wheeled vehicles. Multistage planetary transmission includes two planetary gears with coaxial flywheel installed between them, four clutches with individual actuators installed on the flywheel, four brakes with individual actuators installed on the transmission housing, a secondary shaft, a differential. Crown gear and carrier of the first planetary gear can be engaged with flywheel and/or with housing depending on position of actuators. Crown and sun gears of the first row of the second gear can be engaged with the flywheel depending on the position of the actuators. Crown and sun gears of the second row of the second gear can be engaged with the housing depending on the position of the actuators. Second gear carrier is a single element with secondary shaft drive gear. Secondary shaft transmits torque to differential.

EFFECT: creation of an automatic transmission which is easy to manufacture and study.

4 cl, 2 dwg, 1 tbl