Tire pressure regulation system for a vehicle and method for such a system

Patent metadata

Field	Value
Publication number	US-10131191-B2
Application number	US-201515524933-A
Country	US
Kind code	B2
Filing date	Oct 27, 2015
Priority date	Nov 7, 2014
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

Abstract

Tire pressure regulation method and system for an agricultural vehicle equipped with tires. In order to improve the pressure management of the tires connected to the tire pressure regulation system, a pressure setpoint is determined by determining the characteristics of the tires, the pressure of which is intended to be regulated by the tire pressure regulation device, determining the speed of the vehicle, calculating the pressure setpoint of the tire depending on the characteristics of the tire and on the speed.

First claim

The invention claimed is:

1. Tire pressure regulation system for an agricultural vehicle equipped with tires, comprising:
at least one device for regulating the pressure of a tire, and
means for determining a pressure setpoint for the tire pressure regulation device,
wherein the means for determining a pressure setpoint comprise:
means for determining the characteristics of the tire, the pressure of which is to be regulated by the tire pressure regulation device,
means for determining the speed of the vehicle,
means for calculating the pressure setpoint of said tire depending on the characteristics of said tire and on the speed,
the means for determining the characteristics of a tire comprising means for reading an identifier of the tire and means for associating this identifier with the characteristics of the tire that are recorded in a database.

2. The tire pressure regulation system according to claim 1 , wherein the means for determining a pressure setpoint for the tire pressure regulation device further comprise means for determining at least one characteristic of the running surface.

3. The tire pressure regulation system according to claim 1 , wherein the means for determining a pressure setpoint for the tire pressure regulation device further comprise means for recording at least one setpoint of a driver of the vehicle.

4. The tire pressure regulation system according to claim 1 , wherein the means for determining a pressure setpoint for the tire pressure regulation device further comprise means for determining the characteristics of a tool installed on said vehicle.

5. The tire pressure regulation system according to claim 1 , wherein the means for determining a pressure setpoint for the tire pressure regulation device further comprise means for determining the load applied to the tire.

6. The tire pressure regulation system according to claim 1 , wherein the means for determining a pressure set point for the tire pressure regulation device further comprise means for determining the rate of slip of the tire on the running surface.

7. The tire pressure regulation system according to claim 4 , wherein the means for determining the characteristics of a tool comprise means for reading an identifier of a tool installed on said vehicle and means for associating this identifier with the characteristics of the tool.

8. The tire pressure regulation system according to claim 1 , wherein the means for determining a pressure setpoint for the tire pressure regulation device further comprise means for taking into account the inflation parameters recommended by the manufacturer of the vehicle.

9. Method for regulating the pressure of a tire using a tire pressure regulation device, comprising:
determining the characteristics of the tire, the pressure of which is to be regulated by the tire pressure regulation device, by reading an identifier of the tire and associating this identifier with tire characteristics stored in a database,
determining the speed of a vehicle on which the tire is mounted,
calculating a pressure setpoint of said tire depending on the determined characteristics of said tire and the determined vehicle speed, and
controlling, by the tire pressure regulation device, pressure in the tire based on the calculated pressure setpoint of said tire.

10. The method according to claim 9 , comprising a step of determining at least one characteristic of the running surface.

11. The method according to claim 9 , comprising a step of recording at least one setpoint of the driver.

12. The method according to claim 9 , comprising a step of determining the characteristics of a tool installed on the vehicle.

13. The method according to claim 9 , comprising a step of determining the load applied to the tire.

14. The method according to claim 9 , comprising a step of determining the rate of slip of the tire on the running surface.

15. The method according to claim 9 , comprising a step of reading an identifier of a tool installed on said vehicle and of associating this identifier with the characteristics of the tool.

16. The method according to claim 9 , comprising a step of taking into account the inflation parameters recommended by the manufacturer of the vehicle.

Assignees

• Michelin & Cie
• Michelin Rech Tech
• Michelin & Cie

Inventors

• Vervaet Patrick
• Matyas Istvan
• Lhospitalier Denis

Classifications

• B60C23/002 Primary

  by monitoring conditions other than tyre pressure or deformation · CPC title

• B60C23/10

  Arrangement of tyre-inflating pumps mounted on vehicles · CPC title

• B60C23/12

  operated by a running wheel · CPC title

• B60C23/00 Primary

  Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements · CPC title