The present disclosure relates to a disk-type brushless direct current (BLDC) motor, which comprises a magnetic rotor and a stator. The magnetic rotor is provided with a rim and a plurality of equally spaced magnetic poles around the rim in circumferential direction. The stator is provided with a stator core having tooth portions and boot portions and a plurality of coil windings wrapped around the tooth portions. The stator is disposed radially in relation to the magnetic rotor such that the magnetic poles are radially polarized to produce radial magnetic flux density, and the magnetic flux density is substantially higher at both edges than middle portion of each magnetic pole in the circumferential direction.

A battery attaching/detaching structure for a saddle-type vehicle including: a plurality of substantially rectangular parallelepiped batteries for supplying electric power to a power source of the saddle-type vehicle; a battery case in which the batteries are stored; battery-side terminals provided on lower surfaces of the batteries; and case-side terminals engaged with the battery-side terminals, comprises terminal holders that support the case-side terminals such that the case-side terminals are movable between a connected position where the case-side terminals are connected to the battery-side terminals and a retracted position where the case-side terminals are separated from the battery-side terminals. Between the case-side terminals and the terminal holders, springs for urging the case-side terminals in a direction of pressing the battery-side terminals are disposed. Such battery attaching/detaching structure is capable of limiting the movement of a stored battery and maintaining good electrical connection between a battery-side terminal and a case-side terminal.

A coupled steering tilting and embedded independent shock absorption swing arm system (STS) system of a personal mobility vehicle, for example, but not limited to, a three-wheeled trike configuration, is disclosed.

A straddled vehicle, including a frame structure, a rear arm, a driving wheel rotatably supported by the rear arm, a power source unit, and a drive unit including a gear box, a drive motor and a control unit. The drive motor is arranged with an off-set toward a first direction from a center of the straddled vehicle, without overlapping the power source unit in a side view. The control unit is further in a second direction than the drive motor, and overlaps the drive motor, but does not overlap the power source unit, in the side view. The gear box is further in the second direction than the drive motor, and overlaps the drive motor in the side view. The gear box is also further in the first direction than the control unit, and overlaps with the control unit, but does not overlap the power source unit, in the side view.

A tiltable electric tricycle as in the present invention comprises: (a) a frame, (b) a front fork mounted to the frame, (c) a front wheel with hub motor mounted to the front fork, (d) a seat, (e) a steering handle bar, (f) a pair of laterally spaced rear wheels on a common axle, (g) a support base with two quick release clamps for securing the axle of the rear wheels and the base has a shaft tube fitted into the bottom tube of the frame to connect to the frame rotatably, (h) a pair of footrests, (i) a battery to power the hub motor; furthermore the bottom tube points to the ground contact point of the front wheel; furthermore the frame has a horizontal oriented metal plate at the rear end of the bottom tube positioned above the support base of the rear wheels; and when the frame is tilted relative to the rear wheel support base to a certain extent, an end of the metal plate touches the rear wheel support base and thereby restricts the extent the frame can tilt; furthermore the axle of the rear wheels is secured to its support base using two quick release clamps and can be released quickly from the quick lease clamps so that the axle with two rear wheels can be separated from the rest of the tricycle for easy transportation; furthermore the two footrests are rotatably connected to the base and can swing toward the rear of the tricycle to reduce the width of the tricycle. In operation, the rider of the tricycle seats on the seat with two feet stepping on the footrests of the rear frame to keep balance and can tilt the front part of the tricycle around the axis line to maintain balance in response to road condition, speed, or turning while the rear part with two rear wheels remain stable.

Various embodiments provide for a bike-supported communication network that manages and facilitates communications between components of an electric bicycle and a wireless network. In some embodiments, the systems and methods provide a communication system for an electric bicycle that includes a communication device that facilitates wireless communications between the electric bicycle and a wireless network, and an antenna coupled to the communication device and at least partially integrated into a frame component of the electric bicycle.

A pedal connection mechanism includes a left and a right pedal, and a transverse connecting member. The first cylindrical shaft is provided along the bottom of the left pedal. The left side of the top wall of the transverse connecting member is provided with the first support member. The second cylindrical shaft is provided along the bottom of the right pedal. The right side of the top wall of the transverse connecting member is provided with the second support member. The present invention further provides an electric balancing vehicle using this pedal connection mechanism. The left pedal and the right pedal are not connected with each other through an intermediate shaft. Their motion statuses are controlled respectively by the left foot and the right foot independently. The transverse connecting member shares the weight of a human body. The force distributes evenly. The balancing vehicle is flexible and durable.

A pedal connection mechanism, includes a left and a right pedal, and a transverse connecting member. The first cylindrical shaft is provided along the bottom of the left pedal. The left side of the top wall of the transverse connecting member is provided with the first support member. The second cylindrical shaft is provided along the bottom of the right pedal. The right side of the top wall of the transverse connecting member is provided with the second support member. The present invention further provides an electric balancing vehicle using this pedal connection mechanism. The left pedal and the right pedal are not connected with each other through an intermediate shaft. Their motion statuses are controlled respectively by the left foot and the right foot independently. The transverse connecting member shares the weight of a human body. The force distributes evenly. The balancing vehicle is flexible and durable.

A main body frame (100) for an electric motorcycle comprises a front fork support member (101) with a front fork through hole for loading a pivot stem of a front fork (200), the front fork through hole has a pivotal axis arranged in a central plane (P) of the main body frame; the main body frame further comprises a right and a left frame part (102, 105) arranged on opposite sides of the central plane of the main body frame, each having an elongated shape and being formed of an upper part (102a, 102b) and a lower part (102c, 102d), respectively at different sides of an elongation direction changing portion (102e), a first buffer member (120) attached, at opposite sides thereof, to the right and the left frame part, and crossing the central plane. wherein starting from the respective elongation direction changing portions thereof. the upper parts of the left and the right frame part extend inwardly towards the central plane so as to embrace the front fork support member, and are attached to opposite sides of the front fork support member, and a largest width (a7) of the main body frame in a width direction (Z) perpendicular to the central plane is 10 cm or more and 30 cm or less.

An electric vehicle comprises an electric motor for generating driving power for moving a vehicle body of the electric vehicle; a battery unit for supplying electric power to the electric motor; a charging connector connected to an outside electric power supply for supplying the electric power to be charged; a main controller for controlling switching between a first connection state in which the battery unit is connected to the electric motor and a second connection state in which the battery unit is connected to the charging connector; and a relay for opening and closing a power supply path from the low-voltage battery to the main controller; wherein a relay opens the power supply path to cut off electric power supply to the main controller for a specified time, when the relay switches one of the first connection state and the second connection state to the other connection state.