An electric assist vehicle is described, which may have a cargo area, a drivetrain including an external crankset and an electric motor, and a speed control system. The speed control system automatically limits the maximum operating speed of the vehicle based, at least in part, on a load mass (e.g., a gross weight) of the vehicle and/or the cargo area of the vehicle. Limiting the speed includes, for example, reducing the power of the electric motor and/or increasing a braking force on the vehicle.

A rotation locking device includes a locking module and at least one engaging member. The at least one engaging member is rotatably coupled to the locking module. The locking module is configured to engaging and disengage the at least one engaging member, thereby refraining the at least one engaging member from rotating relative to the locking module.

An electric tricycle with a tricycle frame, at least two pedals, and an electric motor. The tricycle frame has a steering assembly with handlebars and a front wheel and a rear wheel assembly with two rear wheels mounted on a rear axle. The pedals are rotatably coupled to the rear wheel assembly. The pedals have an engaged configuration where the pedals are engaged with the rear axle and a disengaged configuration where the pedals are disengaged from the rear axles. The electric motor is mounted on the rear wheel assembly and is electrically coupled to a battery. The electric motor is configured to engage with the rear axle when the pedals are in the disengaged configuration. The electric motor may have a forward clutch to rotate the rear axle in a first direction and a reverse clutch to rotate the rear axle in a second direction opposite the first direction.

An electric tricycle with a tricycle frame, at least two pedals, and an electric motor. The tricycle frame has a steering assembly with handlebars and a front wheel and a rear wheel assembly with two rear wheels mounted on a rear axle. The pedals are rotatably coupled to the rear wheel assembly. The pedals have an engaged configuration where the pedals are engaged with the rear axle and a disengaged configuration where the pedals are disengaged from the rear axles. The electric motor is mounted on the rear wheel assembly and is electrically coupled to a battery. The electric motor is configured to engage with the rear axle when the pedals are in the disengaged configuration. The electric motor may have a forward clutch to rotate the rear axle in a first direction and a reverse clutch to rotate the rear axle in a second direction opposite the first direction.

There is described a three-wheeled vehicle (1) with two front steered wheels and two footboards (41.1, 41.2) on which the driver stands to drive the vehicle. The footboards are supported on a tilting four-bar linkage, having a front crosspiece 27 and a rear crosspiece 33, between which two rocker arms 31.1 and 31.2 extend. The front steered wheels are supported by the rocker arms and rotate around steering axes (S.1, S.2).

There is described a three-wheeled vehicle (1) with two front steered wheels and two footboards (41.1, 41.2) on which the driver stands to drive the vehicle. The footboards are supported on a tilting four-bar linkage, having a front crosspiece 27 and a rear crosspiece 33, between which two rocker arms 31.1 and 31.2 extend. The front steered wheels are supported by the rocker arms and rotate around steering axes (S.1, S.2).

A vehicle is provided with a vehicle body, N (N is an integer equal to or larger than 2) wheels including one or more front wheels and one or more rear wheels, a force generator, and a force controller. The N wheels include one or more turn wheels turnable in the width direction of the vehicle. The force generator is configured to generate a force which changes a yaw angular acceleration. The force controller is configured to control the force generator. A gravity center of the vehicle body is located away from a rotation center of the vehicle toward front side or rear side when the vehicle turns. The force controller controls the force generator to control a roll torque in the width direction acting on the vehicle body.

Systems and methods are disclosed herein for an interchangeable electric scooter with seating option for 2 passengers is proposed. The assembly provides various advancements including but not limited to a glossy finish, a rectangular front frame member, an aerodynamic manual brake fin, a communication device support member, floor and front panels having multiple colors and designs, On/Off digital locking system, front and back cameras, solar panel, retractable umbrella, cell phone charging spot and holder, Bluetooth connectivity, GPS enabled, smart helmet, an integrated router forming a Wi-Fi hotspot, a daytime running lamp and back lit lights, number plate, a help switch, a sound system, a camera for livestream and social media synchronization, a communication device charger, an integral GPS.

Systems and methods are disclosed herein for an interchangeable electric scooter with seating option for 2 passengers is proposed. The assembly provides various advancements including but not limited to a glossy finish, a rectangular front frame member, an aerodynamic manual brake fin, a communication device support member, floor and front panels having multiple colors and designs, On/Off digital locking system, front and back cameras, solar panel, retractable umbrella, cell phone charging spot and holder, Bluetooth connectivity, GPS enabled, smart helmet, an integrated router forming a Wi-Fi hotspot, a daytime running lamp and back lit lights, number plate, a help switch, a sound system, a camera for livestream and social media synchronization, a communication device charger, an integral GPS.

A leaning vehicle includes a base member, an upper arm, a lower arm, a first support member, a second support member, a first wheel, a second wheel, and a steering operation member. The upper arm, the lower arm, the first support member, the second support member constitute a parallel link mechanism. The first wheel is movable integrally with the first support member in a turning direction of the base member. The second wheel is movable integrally with the second support member in the turning direction of the base member. According to turning of the base member by operating the steering operation member, all of the upper arm, the lower arm, the first support member, the second support member, the first wheel, and the second wheel turn around a turning center of the base member.