Abstract: A motorised trolley with a traction wheel, an assisting motor, a clutch, a speed sensor and a motor controller. The assisting motor engages when accelerating beyond an activation speed and disengages when decelerating below the activation speed. The assisting motor disengages when the motorised trolley accelerates beyond a maximum speed and re-engages when decelerating below the maximum speed. The assisting motor engageably-disengages when the rotational speed exceeds a maximum motor speed. A power source may include power-tool batteries.

Abstract: An electronic control module (46) for coupling a pedal mechanically powered electric generator (28) and a battery (44) to a motor controller (48) of a watercraft propulsion motor (32), comprising: an electrical input operatively connected to the generator (28); a processor with a memory having an output operatively connected to the motor controller (46), said processor being operationally selectable by a user to one of multiple modes so that the processor being is configured to: in a first mode, combine power from the generator (28) with power from the battery (44) to power the motor (32); in a second mode, combine power from the generator (28) with partial power from the battery (44) to power the motor (32); and in a third mode, transfer power from the generator (28) to charge the battery (44).

Abstract: An electronic control module (46) for coupling a pedal mechanically powered electric generator (28) and a battery (44) to a motor controller (48) of a watercraft propulsion motor (32), comprising: an electrical input operatively connected to the generator (28); a processor with a memory having an output operatively connected to the motor controller (46), said processor being operationally selectable by a user to one of multiple modes so that the processor being is configured to: in a first mode, combine power from the generator (28) with power from the battery (44) to power the motor (32); in a second mode, combine power from the generator (28) with partial power from the battery (44) to power the motor (32); and in a third mode, transfer power from the generator (28) to charge the battery (44).

Abstract: An electric propulsion system, an electric bicycle, and a method for converting a non-electric bicycle into an electric bicycle are disclosed. The electric propulsion system has an electric motor with a motor output shaft rotatable about a motor shaft axis. An output end of the motor output shaft is disposed on a first side. A transmission interconnects the electric motor and a drive chain of the bicycle to transmit a drive of the electric motor to the rear wheel. The transmission has a rotatable driven member on the first side engaged with the output end and is rotated thereby. A drive sprocket on the second side and rotatable about a drive sprocket axis is connected to the driven member by a transmission shaft. The drive sprocket engages the drive chain to transmit the drive of the electric motor thereto.

Abstract: An electric propulsion system, an electric bicycle, and a method for converting a non-electric bicycle into an electric bicycle are disclosed. The electric propulsion system has an electric motor with a motor output shaft rotatable about a motor shaft axis. An output end of the motor output shaft is disposed on a first side. A transmission interconnects the electric motor and a drive chain of the bicycle to transmit a drive of the electric motor to the rear wheel. The transmission has a rotatable driven member on the first side engaged with the output end and is rotated thereby. A drive sprocket on the second side and rotatable about a drive sprocket axis is connected to the driven member by a transmission shaft. The drive sprocket engages the drive chain to transmit the drive of the electric motor thereto.

Abstract: An electrically-driven bicycle comprises a bicycle frame. A bottom bracket shell is provided at a junction between a down tube and stays of the frame. An electric motor is connected to the bottom bracket shell, the electric motor having a hollow drive shaft with an output end projecting to a first side of the bottom bracket shell. A transmission connects the drive shaft to one of the a wheel and a drive train of the bicycle, to transmit a drive of the electric motor to the rear wheel. A crank set has an axle rotatably mounted within the hollow drive shaft for rotating independently from the drive shaft. Means are provided for transmitting pedaling actuation on the crank set to the rear wheel, the means being on the second side of the bottom bracket shell. An electrical drive system for bicycle is also provided.