A shielding element against electromagnetic radiation is provided for the seat region of an electric motorcycle. A seat includes a shielding element arranged thereon or accommodated therein.

A shielding element against electromagnetic radiation is provided for the seat region of an electric motorcycle. A seat includes a shielding element arranged thereon or accommodated therein.

To suppress intake noise and secure a quiet ride on a straddle type vehicle wherein a box-shaped structure includes an air cleaner box connected to an engine. In addition, exhaust air from the radiator disposed in the vicinity of the box-shaped structure is prevented from hitting a leg portion of a rider. A main frame is provided as a separate body from a head box so as to support a power unit and a front two-wheeled suspension device. The head box is supported on the main frame due to the fact that an air cleaner box is fixed on the main frame through a fixing member. A guide portion is formed on the air cleaner box so as to guide the exhaust wind from a radiator to the lower direction.

A vehicle includes a frame, a plurality of wheels supporting the frame, and a prime mover system and battery supported on the frame. The vehicle further includes at least one first controller communicating digitally using a communications protocol on a local area network, and a second controller. The first controller is capable of being activated out of a sleep state by an instruction transmitted by the local area network using the communications protocol, whereas the second controller is capable of being activated out of a sleep state by an activation signal transmitted by directly by hard wires without using the communications protocol.

A vehicle includes a frame, a plurality of wheels supporting the frame, and a prime mover system and battery supported on the frame. The vehicle further includes at least one first controller communicating digitally using a communications protocol on a local area network, and a second controller. The first controller is capable of being activated out of a sleep state by an instruction transmitted by the local area network using the communications protocol, whereas the second controller is capable of being activated out of a sleep state by an activation signal transmitted by directly by hard wires without using the communications protocol.

A pivot bearing arrangement, in particular a pivot bearing for a front wheel suspension system of a motorcycle, is provided that substantially reduces bearing breakaway torque, temperature sensitivity, complexity, space requirements and cost. The pivot bearing arrangement includes a first bearing part which enables a component to pivot about a first pivot axis, and a second bearing part which enables a component to pivot about a second pivot axis. The two bearing parts are connected to each other and form a structural unit.

A brake modulator controls actuation of front and rear brakes, and includes a collision possibility determining unit, an automatic brake control unit, and a brake operation determining unit. When the collision possibility determining unit determines that there is a possibility of collision, and the brake operation determining unit determines that brake operation by a driver is absent, the automatic brake control unit first actuates only the rear brake to generate a rear wheel braking force, and also actuates the front brake 2 to generate a front wheel braking force.

A brake modulator controls actuation of front and rear brakes, and includes a collision possibility determining unit, an automatic brake control unit, and a brake operation determining unit. When the collision possibility determining unit determines that there is a possibility of collision, and the brake operation determining unit determines that brake operation by a driver is absent, the automatic brake control unit first actuates only the rear brake to generate a rear wheel braking force, and also actuates the front brake 2 to generate a front wheel braking force.

A multi-stage chain transmission structure for an all-terrain kart, comprising: a first-stage chain-sprocket transmission combination (1) and a second-stage chain-sprocket transmission combination (2); a two-stage chain transmission structure, working in conjunction with an engine (3) on an independent suspension and steering knuckle transmission half-shaft combination of an all-terrain kart body; and a third-stage chain transmission structure, equipped with a chain transmission combination and working in conjunction on an upper position of an integral driving axle of a non-independent suspension. The unsprung mass of a driving axle is reduced, and the responsiveness of the driving axle and the comfort of a driver or passenger are improved. A box-free chain transmission system can adapt to a vertical engine, a horizontal engine and a gear engine, and can also work in conjunction with a common CVT engine, a special belt reverse gear CVT engine and the like as a power source.

A negative pressure air suction type fluid-driven power machine comprises a fluid pressure accumulation bin, a necking port, a flow inlet, a flow guiding cover, a fluid-inlet flow guiding cover, turbine driving blades, a turbine housing, a turbine shaft, a turbine bracket, nozzles surrounding peripheries of the turbine driving blades, a turbine fluid outlet, a fluid negative-pressure flow guiding cover, a fluid negative-pressure outlet, an external driving fluid inlet, an external driving fluid flow guiding cover, and nozzles. The negative pressure air suction type fluid-driven power machine is formed using a gravity acceleration fluid generated by a fluid flowing to a direction opposite to operation of an object as a main driving power source and using a fluid air suction phenomenon as an auxiliary power source, and can replace some effects of steam engines, internal combustion engines, motors and the like.