A method for the weight-dependent control of the internal pressure of a supporting body loaded by a weight load or payload, wherein the internal pressure is produced by means of an electric-motor-driven compressor, and the weight load or payload which is present and which acts on a supporting body in the form of a mass m.sub.Load under the effect of acceleration due to gravity g is determined in that a reduction and a subsequent increase in the internal pressure take place, wherein the increase in the internal pressure causes the position of an application point of the weight load or payload to change by a position difference Z, wherein: during the increasing of the internal pressure by means of the compressor, the motor current I.sub.Load of the drive motor of the compressor is measured with a constant motor voltage U and integrated over the time of the increase in pressure, and the electrical work W.sub.Load which is necessary for the change in position is determined therefrom, wherein the electrical work W.sub.Load the electrical work W.sub.Load is compared with a characteristic value of the electrical work W.sub.0 from a characteristic diagram, wherein the change in position Z, the difference in mass m and the difference in payload F.sub.Z are determined from the difference W between W.sub.Load and W.sub.0 and the mass m.sub.Load and the weight load or payload which is actually present as a result is determined therefrom.

A cordless compressor has an air storage tank, a pump, a motor for driving the pump, and a controller circuit electrically connected to the motor. A pressure switch assembly is connected to the controller circuit. The pressure switch assembly has first and second pressure switches for sensing pressure within the air storage tank. The controller circuit controls de-activation of the motor depending upon status of the first and second pressure switches.

A diagnostic system and method for troubleshooting an electronic system of a vehicle includes receiving a diagnostic trouble code set into a diagnostic system. The diagnostic trouble code set includes one or more diagnostic trouble codes. The method includes receiving diagnostic specifications. The diagnostic specifications associate connector pins and wires of the electronic system with possible diagnostic trouble codes. The method includes receiving wiring circuit specifications. The wiring circuit specifications associate wiring circuits of the electronic system with the connectors of the electronic system. The method includes determining a set of possible repair locations based on the diagnostic trouble code set, the diagnostic specifications, and the wiring circuit specifications, and displaying at least one possible repair location of the set of possible repair locations.

An automatic tire inflator assembly includes an input hose that is fluidly attachable to an air source to receive compressed air from the air source. An output hose is fluidly attachable to an air stem of an inflatable tire. A control unit is fluidly coupled to the input hose to receive the compressed air from the air source. Additionally, the control unit is fluidly coupled to the output hose to inflate the inflatable tire. A gauge is fluidly coupled to the control unit and the gauge is settable to determine the pre-determined threshold pressure. The control unit is turned off when the gauge measures air pressure that exceeds the pre-determined threshold pressure to inflate the inflatable tire to a desired air pressure.

A central tire inflation system that is operably coupled to a vehicle wherein the system is operable to monitor and control the tire air pressure of the vehicle. The central tire inflation system includes a wheel assembly that includes a housing having an annular central portion with opposing arm members extending outward therefrom. The annular central portion includes an interior volume having a valve and a bearing/cap assembly. A controller is further provided wherein the controller includes a central processing unit. A valve is disposed within the controller and is operably coupled to three ports wherein a first port provides a fluid connection to the wheel assembly. The central tire inflation system further includes a control panel having a graphical display operable to provide a user interface for operation of the central tire inflation system. A plurality of operational modes are provide for selection by a user.

An apparatus can include a first tube. The apparatus can include a manifold coupled to the first tube. The manifold can have an opening. The apparatus can include a second tube at least partially disposed in the first tube. The second tube can enter the first tube via the opening of the manifold.

A system for regulating pressure in one or more vessels by adapting a fluid input to receive a fluid from a fluid source such as an air compressor at a constant pressure. At least one fluid outlet assembly is used to attach the system to a vessel such as a bike tire, ball, or car tire. At least one controllable valve is used to couple the fluid outlet assembly to the fluid input, the valve is controllable to pulsate air going through it, check the new pressure in the vessel, and either continue to increase pressure in the vessel, decrease pressure, or stop inflating. A pressure sensor corresponding to a fluid outlet assembly adaptable to provide pressure values from each vessel to a controller. The controller receives at least one desired pressure input, compares that value to the pressure value from the at least one pressure sensor, and selectively energizes the controllable valve to adjust the pressure in the corresponding vessel until the pressure within the vessel is equal to the desired pressure.

The present invention is an apparatus for tire inflation designed to allow users to properly inflate, maintain, and monitor the condition of vehicle tires. The tire inflation device of present invention is comprising of: a carrying case having a housing, a lid attached to the housing using a hinge, a plurality of locking latches to lock the lid over the housing and a handle configured over the lid to allow easy transport of the tire inflating device. The tire inflation device further comprises, a control head assembly to control the working of the device, an air compressor coupled with the control head assembly to provide compressed air for inflation of tires, a hose assembly to connect the device with the vehicle tires and a plurality of power adapters to connect the device with the power source. The control head assembly of the inflation device is further comprising of, a program control module, an auto level manifold, a plurality of output modules, an air release valve, a pressure release valve, a plurality of buttons and switches, and a display unit.

An inflator includes an inflator housing, a pressure sensor operable to generate a pressure signal related to an outlet pressure of the inflator, a motor within the inflator housing, a battery pack removably coupleable to the inflator housing, and a controller electrically coupled to the motor and the battery pack. The controller is configured to receive the pressure signal from the pressure sensor, determine a rate of pressurization change based on the pressure signal, determine a static pressure value based on the rate of pressurization change, and determine a motor time delay based on a target pressure value, the static pressure value, and the rate of pressurization change. The controller is also configured to generate a control signal when the motor time delay substantially equals zero. The control signal is operable to cause power to the motor to be turned off to stop a pressurization condition of the inflator.

The present application discloses a tire maintenance method and a tire maintenance kit. The tire maintenance method comprises: establishing a communication connection between a terminal device and a maintenance device connected to a tire; displaying an interactive interface suitable for a tire maintenance mode on the terminal device; controlling the maintenance device to perform a maintenance operation designated by the tire maintenance mode on the tire based on a user input; and generating at least one of operation results of the tire on the terminal device. The present application can achieve intelligent operation.