The invention relates to a three-wheeled electric vehicle (10) comprising a front-axle device (22) having two steerable front wheels (24a, 24b) which are aligned substantially parallel to each other when traveling straight ahead; a rear-axle device (12) with a driven rear wheel (14); and a vehicle frame (26) on which the front-axle device (22) and the rear-axle device (12) are supported; wherein the front-axle device (22) is designed such that when the steering angle is rotated, the vehicle frame (26) and the front wheels (24a, 24b) may be tilted in the direction of the rotated steering angle. The compactness value KW, which is calculated from the ratio of the distance SP between the front wheels (24, 24B) when arranged substantially parallel to each other for a straight-ahead travel to the wheelbase RS between the front wheels (24a, 24b) and the rear wheel (14), said wheelbase being measured when the front wheels (24, 24b) are positioned for a straight-ahead travel, satisfies the following condition: KW=SP/RS 0.35≤KW≤0.80, in particular 0.62≤KW≤0.78.

The invention relates to a three-wheeled electric vehicle (10) comprising a front-axle device (22) having two steerable front wheels (24a, 24b) which are aligned substantially parallel to each other when traveling straight ahead; a rear-axle device (12) with a driven rear wheel (14); and a vehicle frame (26) on which the front-axle device (22) and the rear-axle device (12) are supported; wherein the front-axle device (22) is designed such that when the steering angle is rotated, the vehicle frame (26) and the front wheels (24a, 24b) may be tilted in the direction of the rotated steering angle. The compactness value KW, which is calculated from the ratio of the distance SP between the front wheels (24, 24B) when arranged substantially parallel to each other for a straight-ahead travel to the wheelbase RS between the front wheels (24a, 24b) and the rear wheel (14), said wheelbase being measured when the front wheels (24, 24b) are positioned for a straight-ahead travel, satisfies the following condition: KW=SP/RS 0.35≤KW≤0.80, in particular 0.62≤KW≤0.78.

A bicycle frame is disclosed, having at least one frame portion which is configured for the removable mounting of at least one separate energy storage device, in particular a battery pack. According to the invention, the frame portion configured for the removable mounting of the energy storage device has an asymmetric cross section with respect to a frame centre plane. An electric bicycle according to the invention has a frame portion which is configured for the removable mounting of at least one separate energy storage device, the frame portion having an asymmetric cross section with respect to a frame centre plane. Furthermore, an energy storage device is disclosed, having an asymmetric cross section with respect to an energy storage device centre plane.

A bicycle frame is disclosed, having at least one frame portion which is configured for the removable mounting of at least one separate energy storage device, in particular a battery pack. According to the invention, the frame portion configured for the removable mounting of the energy storage device has an asymmetric cross section with respect to a frame centre plane. An electric bicycle according to the invention has a frame portion which is configured for the removable mounting of at least one separate energy storage device, the frame portion having an asymmetric cross section with respect to a frame centre plane. Furthermore, an energy storage device is disclosed, having an asymmetric cross section with respect to an energy storage device centre plane.

The invention is a double motor power unit, suitably for being mounted onto a bicycle frame, which is fitted with at least two motors (7), at least one power supply (13), bearings (8), crank shaft pinion gearhead (11), at least one propulsor pinion gearhead (10) for each motor, at least one planetary gearbox (15) for each motor, and at least one central processor unit (12). It is characterized in that the propulsor pinion gearheads (10) are connected to pinions with dynamometric system (19), having an at least approximately identical axis, and to planetary gearboxes (15) through the pinions, while the inside of the bearings (8) is in fixed connection with the crank shaft (9) and the outside of the bearing (8) is in fixed connection with the crank shaft pinion gearhead (11). The invention is also the procedure for placing the power unit according to claim suitably into a bicycle frame.

The invention is a double motor power unit, suitably for being mounted onto a bicycle frame, which is fitted with at least two motors (7), at least one power supply (13), bearings (8), crank shaft pinion gearhead (11), at least one propulsor pinion gearhead (10) for each motor, at least one planetary gearbox (15) for each motor, and at least one central processor unit (12). It is characterized in that the propulsor pinion gearheads (10) are connected to pinions with dynamometric system (19), having an at least approximately identical axis, and to planetary gearboxes (15) through the pinions, while the inside of the bearings (8) is in fixed connection with the crank shaft (9) and the outside of the bearing (8) is in fixed connection with the crank shaft pinion gearhead (11). The invention is also the procedure for placing the power unit according to claim suitably into a bicycle frame.

An electric power-assisted bicycle, comprising: a torque sensor for detecting pedaling force applied to the pedal; an inclination angle sensor for detecting rocking of the bicycle body in a lateral direction; an electric motor that assists drive of a drive wheel driven by pedaling of the rider; and a controller that controls the electric motor based on the pedaling force. The controller has a first mode and a second mode as control modes of the electric motor. The second mode is executed when the controller determines that the rider pedals the bicycle while rocking the bicycle body in the lateral direction. The controller executes different control in the second mode from that in the first mode to assist the drive of the drive wheel.

A bicycle component is provided with a base including a recess, a cover, a protected member that is at least partially arranged in the recess, and an engagement portion. The cover is configured to close the recess. The protected member is at least partially arranged in the recess. The engagement portion is configured separately from the cover and the protected member. The engagement portion is arranged in the recess and engages the cover that covers the recess.

A bicycle battery unit is configured to supply power to a bicycle component. The bicycle battery unit includes a housing, a battery, a first electrical connector, a second electrical connector and a power line communication circuit. The battery is accommodated in the housing. The first electrical connector is provided to the housing so as to be at least partially exposed out of the housing being electrically connectable with the battery. The second electrical connector is provided to the housing so as to be at least partially exposed out of the housing separate from the first electrical connector. The power line communication circuit is electrically connected to the second electrical connector and configured to perform power line communication via the second electrical connector.

A bicycle battery unit is configured to supply power to a bicycle component. The bicycle battery unit includes a housing, a battery, a first electrical connector, a second electrical connector and a power line communication circuit. The battery is accommodated in the housing. The first electrical connector is provided to the housing so as to be at least partially exposed out of the housing being electrically connectable with the battery. The second electrical connector is provided to the housing so as to be at least partially exposed out of the housing separate from the first electrical connector. The power line communication circuit is electrically connected to the second electrical connector and configured to perform power line communication via the second electrical connector.