Tire inflation system and method of control

Patent metadata

Field	Value
Publication number	US-9346329-B2
Application number	US-201314080941-A
Country	US
Kind code	B2
Filing date	Nov 15, 2013
Priority date	Nov 15, 2013
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

A tire inflation system and a method of control. The tire inflation system may include a damped valve that moves from a closed position to an open position faster than from the open position to the closed position.

First claim

What is claimed is:

1. A method of controlling a tire inflation system comprising:
providing a pulse of a pressurized gas to actuate a damped valve from a closed position to an open position, wherein the damped valve is fluidly connected to a tire;
exhausting pressurized gas from the tire before the damped valve moves to the closed position; and
wherein the damped valve moves from the closed position to the open position faster than the damped valve moves from the open position to the closed position.

2. The method of claim 1 wherein pressurized gas is exhausted from the tire when the damped valve moves from the open position toward the closed position.

3. The method of claim 1 wherein pressurized gas is exhausted from the tire through the damped valve and through an exhaust valve.

4. The method of claim 3 wherein an inflation pressure of the tire is measured after opening the damped valve and before opening the exhaust valve.

5. The method of claim 1 wherein an inflation pressure of the tire is measured with a pressure sensor that is disposed outside of the tire after providing the pulse of pressurized gas.

6. The method of claim 1 wherein the pulse of pressurized gas increases a volume of pressurized gas in the tire by a first amount and wherein a second amount of pressurized gas that exceeds the first amount is exhausted from the tire before the damped valve moves to the closed position.

7. The method of claim 1 wherein an inflation pressure of the tire decreases after the pulse of pressurized gas is provided to the tire and pressurized gas is exhausted from the tire by operation of the damped valve.

8. The method of claim 1 wherein pressurized gas is provided from a pressurized gas source to the tire via the damped valve when the damped valve is in the open position.

9. The method of claim 8 further comprising a tire valve that is disposed proximate the tire, wherein the damped valve is disposed between the tire valve and the pressurized gas source.

10. The method of claim 9 wherein the tire valve is held in an open position to permit pressurized gas to pass through the tire valve when the damped valve is in the open position and the closed position.

11. The method of claim 8 wherein providing the pulse of the pressurized gas further comprises opening an inlet valve and an outlet valve that are disposed between the pressurized gas source and the damped valve.

12. The method of claim 11 wherein pressurized gas is exhausted from the tire through an exhaust valve and the exhaust valve is closed when the pulse of pressurized gas is provided.

13. The method of claim 12 wherein the inlet valve is closed before the exhaust valve is opened.

14. The method of claim 13 wherein the exhaust valve is fluidly connected to the outlet valve such that the pressurized gas is exhausted from the tire through the outlet valve and through the exhaust valve.

15. The method of claim 14 wherein the exhaust valve is closed after the damped valve moves to the closed position.

16. The method of claim 1 wherein no valve is disposed between the damped valve and the tire.

17. A tire inflation system comprising:
a pressurized gas source that supplies a pressurized gas and that is configured to be fluidly connected to a tire; and
a damped valve that is disposed between the tire and the pressurized gas source, wherein the damped valve moves between a closed position in which pressurized gas is inhibited from flowing through the damped valve and an open position in which pressurized gas is not inhibited from flowing through the damped valve, wherein the damped valve moves from the closed position to the open position faster than the damped valve moves from the open position to the closed position.

18. The tire inflation system of claim 17 wherein the damped valve moves from the closed position to the open position in response to a pulse of pressurized gas.

19. The tire inflation system of claim 18 further comprising an exhaust valve that exhausts pressurized gas from the tire inflation system, wherein the exhaust valve is opened to exhaust pressurized gas from the tire before the damped valve moves to the closed position.

20. The tire inflation system of claim 19 wherein a volume of pressurized gas in the tire decreases after the pulse of pressurized gas is provided to the tire and the pressurized gas is exhausted from the tire by operation of the damped valve and the exhaust valve.

Assignees

• Arvinmeritor Technology Llc

Inventors

• Keane James

Classifications

• Y10T137/0396

  Involving pressure control · CPC title

• B60C23/003 Primary

  comprising rotational joints between vehicle-mounted pressure sources and the tyres · CPC title

• B60C23/00354

  Details of valves · CPC title

• B60C23/00372 Primary

  characterised by fluid diagrams · CPC title