Tire lateral force model with temperature adaptation and method

Patent metadata

Field	Value
Publication number	US-2015284021-A1
Application number	US-201414244106-A
Country	US
Kind code	A1
Filing date	Apr 3, 2014
Priority date	Apr 3, 2014
Publication date	Oct 8, 2015
Grant date	—

Abstract

A tire-based system and method for adapting the calculation of temperature-sensitive tire characteristics includes one or more tire-mounted temperature sensors mounted to a vehicle tire for measuring a tire temperature at a tire radially outward surface; an algorithmic model adapting one or more temperature-sensitive tire characteristics by the measured tire surface temperature; and vehicle controls using the temperature-sensitive tire characteristics adapted by the tire surface temperature in one or more vehicle control commands.

First claim

What is claimed is:

1 . A tire based system for adapting the calculation of temperature-sensitive tire characteristics comprising:
at least one tire mounted to a wheel hub and supporting a vehicle; temperature measurement means comprising at least one temperature sensor mounted to the one tire for measuring a tire temperature at a tire radially outward surface; an algorithmic model operatively receiving the tire temperature as an input and using the tire temperature in adapting at least one temperature-sensitive tire characteristic; vehicle control means for using the at least one temperature-sensitive tire characteristic adapted by the tire temperature in at least one operative control command for the vehicle.

2 . The system of claim 1 , wherein the one temperature-sensitive tire characteristic is from the group of tire characteristics: tire cornering stiffness; and tire peak friction coefficient.

3 . The system of claim 2 , temperature measurement means comprises a plurality of temperature sensors mounted to respective locations across a tire tread region, and the tire temperature comprising a mean temperature combination of measured temperatures from the plurality of temperature sensors.

4 . The system of claim 3 , wherein the temperature measurement means substantially continuously measures tire temperature at the tire radially outward surface throughout operative use of the one tire.

5 . The system of claim 2 , wherein the algorithmic model comprises a second-order polynomial model capturing the dependencies of the group of tire characteristics to the tire temperature.

6 . The system of claim 2 , wherein the at least one operative control command for the vehicle is from the group active front and rear steering and yaw control.

7 . A tire-based system for adapting the calculation of temperature-sensitive tire characteristics comprising:
at least one tire mounted to a wheel hub and supporting a vehicle; at least one tire-mounted temperature sensors mounted to the one vehicle tire for measuring a tire temperature at a radially outward surface of the one tire; an algorithmic model adapting at least one temperature-sensitive tire characteristics by the surface temperature of the one tire; and vehicle controls using the temperature-sensitive tire characteristics adapted by the surface temperature of the one tire in at least one vehicle control commands.

8 . A tire-based method for adapting the calculation of temperature-sensitive tire characteristics comprising:
mounting at least one tire-mounted temperature sensor to a vehicle tire for measuring a tire temperature at a radially outward tire surface; employing an algorithmic model to adapt at least one temperature-sensitive tire characteristic by the tire temperature at the outward tire surface; and using at least one of the temperature-sensitive tire characteristics adapted by the tire temperature at the outward tire surface in at least one vehicle control command.

9 . The method of claim 9 , wherein the one temperature-sensitive tire characteristic is from the group of tire characteristics: tire cornering stiffness; and tire peak friction coefficient.

10 . The method of claim 10 , wherein comprising mounting a plurality of temperature sensors to respective locations across a tire tread region, and combining tire temperature measurements for use in the algorithmic model.

11 . The method of claim 10 , wherein the algorithmic model comprises a second order polynomial model capturing the dependencies of the group of tire characteristics to the tire temperature.

12 . The method of claim 11 , wherein the at least one operative control command for the vehicle is from the group active front and rear steering and yaw control.

Assignees

• Goodyear Tire & Rubber

Inventors

• Singh Kanwar Bharat

Classifications

• B60T8/1725

  Using tyre sensors, e.g. Sidewall Torsion sensors [SWT] (for tyre pressure and temperature detection B60C23/00) · CPC title

• B60C23/20 Primary

  Devices for measuring or signalling tyre temperature {only} · CPC title

• B60C2019/004

  Tyre sensors other than for detecting tyre pressure · CPC title

• B62D6/001 Primary

  the torque NOT being among the input parameters · CPC title

• B60W30/02

  Control of vehicle driving stability · CPC title