Patent ID: 11932349
Assignee: GATES CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 0:
1. A power unit having a housing for a pedal vehicle, the power unit comprising:
a main epicyclic gear set arranged to control transmission ratio between a pedal shaft and an output shaft of the pedal vehicle, the main epicyclic gear set comprises a sun gear, a ring gear, plurality of planet gears between the sun gear and the ring gear and a planet carrier connected to the planet gears;
an assist motor connected to an assist gear of the main epicyclic gear set and arranged to transmit torque to the output shaft;
a control motor connected to a control gear of the main epicyclic gear set and arranged to adjust the transmission ratio of the main epicyclic gear set, the control motor and the control gear forming a control assembly of the power unit; and
a one-way clutch provided to the control assembly of the power unit and arranged to transmit rotation in only a first rotation direction,
the pedal shaft is connected to the planet carrier, the ring gear is connected to the output shaft, the control motor is connected to the sun gear, and the assist motor is connected to the ring gear;
the ring gear forming the assist gear;
the sun gear forming the control gear; and
the control motor and the sun gear forming the control assembly and the one-way clutch is provided to the control assembly,
wherein:
the one-way clutch is arranged between the sun gear and the housing of the power unit.