A pneumatic control and measuring device and seat comfort system with such a device. The pneumatic control and measuring device includes a valve and a pressure sensor, wherein the valve includes an input channel, a pressure channel, an output channel and a sealing element switched or switchable by an actuator. The sealing element is configured to connect the input channel with the pressure channel in that a supply pressure provided in the compressed air supply channel is or can be provided at an output connection of the valve fluidically communicating with the pressure channel. A pressure sensor for capturing a pressure present at the output connection is a printed-circuit-board-integrated pressure sensor.

The invention relates to a pressure control device, consisting of at leasttwo switching valves (10, 12), a feedback control unit (14), a sensor unit (20), and a voltage supply unit (24).

The pressure of a gas supplied to a nozzle is stably controlled over a wide range. A first positive pressure supply pathway supplies the gas at a first positive pressure. A second positive pressure supply pathway supplies the gas at a second positive pressure that is lower than the first positive pressure. A nozzle connecting pathway is connected to the nozzle. A switch-over valve selectively switches between a first connected state in which the first positive pressure supply pathway is connected to the nozzle connecting pathway and a second connected state in which the second positive pressure supply pathway is connected to the nozzle connecting pathway. A valve controller controls the connected state of the switch-over valve and adjusts the pressure of the gas supplied to the nozzle within the range from the first positive pressure to the second positive pressure.

A pilot pressure supply solenoid valve (36) is disposed in a flow path connecting an inlet port (16) and a pilot chamber (48), and a pilot pressure discharge solenoid valve (38) is disposed in a flow path through which a pressure fluid in the pilot chamber is discharged to the exterior. A flow path, through which the pressure fluid that has passed through a supply valve (26) is discharged to the exterior, is not provided.

A device for providing an output fluid at a regulated output pressure includes a pressure control unit controlled via a pilot control pressure and a pilot control unit that provides the pilot control pressure. The pressure control unit includes an inlet chamber for an input fluid having an input pressure, an outlet chamber for the output fluid having the regulated output pressure and a first valve unit that acts between the inlet chamber and the outlet chamber. A first diaphragm of the pressure control unit is acted upon by the pilot control pressure. A second diaphragm, which is mechanically coupled to the first diaphragm is acted upon by the output fluid having the output pressure acts. At least the second diaphragm mechanically acts on the first valve unit.

A method and system for characterizing pressure controller valves of a pressure controller system are described herein. The pressure controller system includes a first valve and a second valve coupled to a manifold and a controller configured to control operation of the first valve and the second valve. The first valve regulates mass flowrate into the manifold and the second valve regulates mass flowrate released from the manifold. To characterize the apply valve, an electronic solenoid current to the first valve is increased until the manifold pressure rate exceeds the pressure rate threshold. When the manifold pressure rate exceeds the pressure rate threshold, the electronic solenoid current to the first valve decreases until the manifold pressure rate falls below the pressure rate threshold. These steps continue until the manifold pressure exceeds a manifold pressure threshold. At this point, the first valve is closed and characterization of the second valve commences.

Systems, methods, and apparatuses for a regulator are provided. The regulator includes a reducing valve, an accumulator, an accumulator line, and a regulated line. The reducing valve is operable between a closed position and an open position. The reducing valve includes a first opening inlet configured to receive fluid to bias the reducing valve towards the open position, a first closing inlet configured to receive fluid to bias the reducing valve towards the closed position, and a first spring configured to transmit a first spring force to the reducing valve to bias the reducing valve towards the closed position. The accumulator is configured to store fluid at a first pressure. The accumulator line is configured to receive fluid from the accumulator and to provide the fluid to the first opening inlet at the first pressure. The regulated line is connected to the first closing inlet at a second pressure. The reducing valve transitions from the closed position to the open position when a first force created by the first pressure on the reducing valve is greater than a sum of the first spring force, a first tolerance, and a second force created by the second pressure on the reducing valve.