A three wheeled vehicle is provided that can include a frame, a steerable front wheel secured to a front end of the frame, a first trailing wheel arm having a first rear wheel secured thereto and a second trailing wheel arm having a second rear wheel secured thereto, and a central suspension joint secured to the frame on which the first and second trailing wheel arm is rotatably secured on either side of the frame. Further, the vehicle can include a horizontal linkage pivotably connected on the frame at the midsection beneath the first and second trailing wheel arms and linked to an underside of the first and second trailing wheel arm between the first wheel and the central suspension joint proximal to a first end of the horizontal linkage and between the second wheel and the central suspension joint proximal to a second end of the horizontal linkage, respectively.

A representative system includes a personal transportation device with: first and second wheels aligned along an axis; an idler wheel rearward of the axis; a platform configured to support a user in a standing position; electric motors to drive the first and second wheels; first and second hand grips fixed in position at respective locations forward of the platform; and first and second control actuators disposed, respectively, on the first and second hand grips, the first and second control actuators being operative to control rotations of the first and second wheels and configured to be actuated by corresponding thumbs of the user while hands of the user are grasping corresponding ones of the first hand grip and the second hand grip.

An electric Vehicle (EV) includes a frame extending rearwards from the front portion of the EV towards a rear portion of the EV. A floorboard structure is disposed below the frame and is supported by the frame. A battery is disposed in a cavity defined between the floorboard structure and the frame. A first heat-generating component is disposed in the rear portion of the EV. The EV includes a duct extending from the front portion to the first heat-generating component to conduct air from the front portion to the first heat-generating component. A second heat-generating component is disposed in the cavity. The duct includes: an inlet facing the front portion to receive air from the front portion; a first outlet facing the first heat-generating component to supply air to the first heat-generating component; and a second outlet facing the second heat-generating component to supply air to the second heat-generating component.

An electric Vehicle (EV) includes a frame extending rearwards from the front portion of the EV towards a rear portion of the EV. A floorboard structure is disposed below the frame and is supported by the frame. A battery is disposed in a cavity defined between the floorboard structure and the frame. A first heat-generating component is disposed in the rear portion of the EV. The EV includes a duct extending from the front portion to the first heat-generating component to conduct air from the front portion to the first heat-generating component. A second heat-generating component is disposed in the cavity. The duct includes: an inlet facing the front portion to receive air from the front portion; a first outlet facing the first heat-generating component to supply air to the first heat-generating component; and a second outlet facing the second heat-generating component to supply air to the second heat-generating component.

An electric vehicle includes a frame, a wheel coupled to the frame, and a battery assembly including a housing supported by the frame. The housing includes a top side and a bottom side opposite the top side. A drive assembly of the electric vehicle is at least partially enclosed within a drive housing unit. The drive assembly includes a motor configured to receive power from the battery assembly and a gear assembly configured to transmit torque from the motor to the wheel. The drive housing unit is positioned below the bottom side of the housing.

The present invention relates to a two-wheel electric vehicle, comprising: a frame (1); a housing (3) connected to the frame (1); one front wheel (2) and one rear wheel (6); and a gyroscope device (5), the gyroscope device (5) comprises a flywheel (13); and a control system (10), the control system (10) controlling a precession angular speed of the flywheel (13) within a period during which the two-wheel electric vehicle is started but does not run, a period during which the two-wheel electric vehicle runs normally or a period during which the two-wheel electric vehicle steers, to keep balance of a vehicle body. The two-wheel electric vehicles solves the technical problem existing in the prior art of poor stability of the two-wheel electric vehicle.

A bike includes a frame elongated in a longitudinal direction, a front fork rotatably engaged with a front wheel at a front end of the bike, a rear fork rotatably engaged with a rear wheel at a rear end of the bike, a handlebar supported for rotation at the front end of the frame for steering the bike, and a drive module configured to drive the rear wheel of the bike when operated selectively with power. The frame includes a down tube extending downward and rearward from the front end of the bike and a drive module enclosure formed at a second end of the down tube. The drive module enclosure defines a drive module receptacle that is open along the longitudinal direction of the bike. The drive module receptacle is sized to receive the drive module along the longitudinal direction of the bike.

A bike includes a frame elongated in a longitudinal direction, a front fork rotatably engaged with a front wheel at a front end of the bike, a rear fork rotatably engaged with a rear wheel at a rear end of the bike, a handlebar supported for rotation at the front end of the frame for steering the bike, and a drive module configured to drive the rear wheel of the bike when operated selectively with power. The frame includes a down tube extending downward and rearward from the front end of the bike and a drive module enclosure formed at a second end of the down tube. The drive module enclosure defines a drive module receptacle that is open along the longitudinal direction of the bike. The drive module receptacle is sized to receive the drive module along the longitudinal direction of the bike.

A vehicle includes upper frames, lower frames, a front frame, a rear frame, a pair of rear wheels, a drive motor to drive the pair of rear wheels, a battery to supply electric power to the drive motor, an endless power transmission to connect the drive motor with the pair of rear wheels, a pivot shaft attached to the rear frame, a swing arm supported pivotably by the pivot shaft and supporting the pair of rear wheels, a straddled seat at a higher position than the drive motor, and a bar handle provided at a higher position than the straddled seat. The drive motor is located farther forward than the swing arm.

A vehicle includes upper frames, lower frames, a front frame, a rear frame, a pair of rear wheels, a drive motor to drive the pair of rear wheels, a battery to supply electric power to the drive motor, an endless power transmission to connect the drive motor with the pair of rear wheels, a pivot shaft attached to the rear frame, a swing arm supported pivotably by the pivot shaft and supporting the pair of rear wheels, a straddled seat at a higher position than the drive motor, and a bar handle provided at a higher position than the straddled seat. The drive motor is located farther forward than the swing arm.