Abstract: A vehicle includes a frame, a pedal crank which is mounted on the frame to rotate about a first axis, a drive motor, a drive belt or drive chain for transmission of force from the drive motor to a drive wheel, with the drive wheel being mounted resiliently on the frame via a rocker. The pivot axis of the rocker in relation to the frame is coaxial with respect to the drive motor and coincides with the axis of a first gearwheel which is driven by the drive motor and about which the drive belt or drive chain is deflected.

Abstract: A watercraft (1) includes at least two oar handles (3a, 3b) which are designated to be actuated by a passenger of the watercraft in order to propel the same. A considerably expanded functionality is achieved in such a way that the oar handles (3a, 3b) are connected to a control unit which controls at least one power-actuated driving motor (6a, 6b; 7; 16a, 16b; 26a, 26b) of the watercraft depending on the actuation of the oar handles (3a, 3b).

Abstract: The invention relates to a vehicle, especially a bicycle, comprising at least one drive wheel (1), a motor (3) connected to the drive wheel (1), a power accumulator (5) for supply of the motor (3), a control device (6) for controlling the motor (3), and a pedal crank (7). The aim of the invention is to improve the handling characteristics of such a bicycle. For this purpose, the pedal crank (7) can be moved independently of the drive wheel (1) and is connected to a braking device (20, 21) that provides a moment of resistance to the rotation of the pedal crank (7). The moment of resistance of the braking device (20, 21) is controlled by the control device (6).

Abstract: The invention relates to a vehicle, comprising a frame (1), a pedal crank (5) which is mounted on the frame (1) in a manner so that it can rotate about a first axis (4), a drive motor (6), a drive belt (7) or drive chain for transmission of force from the drive motor (6) to a drive wheel (3), with the drive wheel (3) being mounted resiliently on the frame (1) via a rocker (10).

Abstract: A watercraft (1) includes at least two oar handles (3a, 3b) which are designated to be actuated by a passenger of the watercraft in order to propel the same. A considerably expanded functionality is achieved in such a way that the oar handles (3a, 3b) are connected to a control unit which controls at least one power-actuated driving motor (6a, 6b; 7; 16a, 16b; 26a, 26b) of the watercraft depending on the actuation of the oar handles (3a, 3b).

Abstract: The invention relates to a vehicle, especially a bicycle, comprising at least one drive wheel (1), a motor (3) connected to the drive wheel (1), a power accumulator (5) for supply of the motor (3), a control device (6) for controlling the motor (3), and a pedal crank (7). The aim of the invention is to improve the handling characteristics of such a bicycle. For this purpose, the pedal crank (7) can be moved independently of the drive wheel (1) and is connected to a braking device (20, 21) that provides a moment of resistance to the rotation of the pedal crank (7). The moment of resistance of the braking device (20, 21) is controlled by the control device (6).