Disclosed is a wheel having a sphere at the hub of the rim which can rotate in all directions by the ball bearing it is supported by, wherein the sphere is produced from various metals, carbon fibre, etc. material. The wheel helps to prevent vehicles from skidding off tracks at turns even at high speeds or to prevent accidents that may occur as a result of swiping of vehicles with each other particularly during competitive racing.

The present invention discloses an automatic adjustment device for a front suspension of a driverless formula racing car, comprising: a vertical column, an upper fork arm, a lower fork arm, a strength adjuster, a push rod, a rocking block and a shock absorber. By arranging the strength adjuster between the upper fork arm and the lower fork arm, and by adjusting the degree of tightness between the upper fork arm and the lower fork arm, the present invention can automatically adjust the tensile and support strength of the strength adjuster according to different car conditions and road conditions in which the racing car runs, to guarantee the structure stability of the front suspension in the running process, and prevent the front suspension from being loosening or fracturing, thereby having good adaptability and stability to structural deformation.

A method and apparatus for controlling an airflow. The method draws air through a group of inlets. The group of inlets is located in a group of locations on the vehicle such that the group of inlets actively controls the airflow relative to an aircraft when drawing the air. The method compresses the air drawn by the group of inlets in a group of air compressor units located in an aircraft structure to form pressurized air. Further, the method sends the pressurized air through a group of exit ports in the aircraft structure. The pressurized air flowing out of the group of exit ports actively controls the airflow for an aircraft, enabling an improved performance of the aircraft.

A method for safely capturing an engine RPM threshold in a spark-ignition internal combustion engine which may exceed the maximum safe unloaded RPM for that engine. Typical engines having a safe RPM high speed redline when coupled to a load, and a reduced RPM redline when decoupled and unloaded, can be set to activate ancillary equipment at a high redline, engine loaded RPM by deriving and processing data from the engine at a low, unloaded reduced RPM speed. The method requires operator reference to an existing OEM or after-market tachometer which enables the user to set a low RPM reference point while the engine is unloaded and running at a slow RPM. Raw data from the latter low RPM reference point selected by a user is safely captured to form a raw threshold while the engine is operating unloaded, and a higher RPM operating threshold is calculated and set from the raw threshold. The higher RPM operating threshold may exceed the maximum safe unloaded RPM for said engine.

The present invention discloses an automatic adjustment device for a front suspension of a driverless formula, racing car, comprising: a vertical column, an upper fork arm, a lower fork arm, a strength adjuster, a push rod, a rocking block and a shock absorber. By arranging the strength adjuster between the upper fork arm and the lower fork arm, and by adjusting the degree of tightness between the upper fork arm and the lower fork arm, the present invention can automatically adjust the tensile and support strength of the strength adjuster according to different car condifions and road conditions in which the racing car runs, to guarantee the structure stability of the front suspension in the running process, and prevent the front suspension from being loosening or fracturing, thereby having good adaptability and stability to structural deformation.

A braking system for a road vehicle having: a brake disc; a brake caliper provided with at least one hydraulic piston; a hydraulic circuit containing a brake liquid and having: a hydraulic control unit provided with an electrically controlled pump and a delivery pipe, which connects the hydraulic control unit to the hydraulic piston; a return pipe, which is separate from and independent of the delivery pipe and connects the hydraulic piston to the hydraulic control unit; a recirculation solenoid valve, which is interposed along the return pipe and can be controlled so as to enable or forbid the circulation of the brake liquid along the return pipe; and a control unit, which, when the braking system is not used, opens the recirculation solenoid valve and operates the electrically controlled pump so as to create a circulation of the brake liquid through the first delivery pipe and through the return pipe.

A drive assembly for a kart, and a kart including the assembly is disclosed. The assembly includes an electric motor including an output shaft; an assembly housing surrounding the motor, the housing defining an aperture; an intermediate shaft rotatably disposed within the assembly housing; a driving gear removably disposed on the output shaft within the housing; a reduction gear removably disposed on the intermediate shaft within the housing; and a panel removably connected to the housing for selectively covering the aperture, the driving gear and the reduction gear being removable from the motor and the housing via the aperture when the panel is removed from the housing, the panel, the driving gear, and the reduction gear being disposed above a maximum level of transmission oil contained within the housing when the motor is not operating. A method of changing a kart transmission ratio is also disclosed.

A braking system for vehicles includes a hydraulic actuator unit operatively connected to at least one braking device, so as to control its actuation by a first hydraulic circuit at a first working pressure. The hydraulic actuator unit includes at least one manual actuator for a user to allow the user to supply the braking system with a braking request. A power generation unit is operatively connected to the hydraulic actuator unit by a second hydraulic circuit at a second working pressure. An actuated brake pump is connected in input to the second hydraulic circuit of the power generation unit to be actuated, and operatively connected, in output, to the first hydraulic circuit for actuation of the at least one braking device. The first and the second hydraulic circuits are supplied with different hydraulic fluids fluidically separate from each other.

A miniature vehicle includes a chassis frame, front and rear wheel assemblies operatively coupled at front and rear ends of the chassis frame respectively, a motorized assembly supported on the chassis frame to power the rear wheel assembly, and a foot steering arrangement operatively coupled to the front wheel assembly. Therefore, the user is able to control the miniature vehicle by the feet of the user to precisely steer and control the miniature vehicle.

Provided are a control method, a vehicle frame, a power driving assembly and a vehicle. The vehicle frame is configured to be connected with the power driving assembly, and the vehicle frame is provided with a manipulation assembly and a controller for controlling the power driving assembly. The control method includes that: after the vehicle frame is connected to the power driving assembly and a communication connection is established between the controller and the power driving assembly, the controller detects a manipulation instruction from the manipulation assembly; and in response to detecting the manipulation instruction from the manipulation assembly and determining that the manipulation instruction corresponds to the power driving assembly, the controller generates, according to the manipulation instruction, a control instruction for controlling the power driving assembly, and sends the control instruction to the power driving assembly.