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Method and system for determining a cornering angle of a tyre during the running of a vehicle

A technology of vehicle control system and turning angle, which is applied in the direction of automobile tire testing, tire measurement, vehicle parts, etc., and can solve the problem of not being able to easily turn the angle

Active Publication Date: 2007-08-29
PIRELLI TYRE SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the steering angle to which the tires are subjected during a steering maneuver cannot be easily derived from the measurements performed on the vehicle

Method used

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  • Method and system for determining a cornering angle of a tyre during the running of a vehicle
  • Method and system for determining a cornering angle of a tyre during the running of a vehicle
  • Method and system for determining a cornering angle of a tyre during the running of a vehicle

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Embodiment Construction

[0059] FIG. 1 shows a cross-sectional view of a wheel comprising a tire 11 and a supporting rim 12 . The tire 11 shown in Figure 1 is of the type conventionally called "tubeless", ie it does not contain an inner tube. The tire can be inflated by means of an inflation valve 13 located, for example, on the channel of said rim 12 . The tire is mounted on a vehicle (not shown).

[0060] The tire 11 comprises a carcass 16 terminating in two beads 14 and 14 ′, each formed along the inner periphery of the carcass 16 for securing the tire 11 to a respective supporting rim 12 . The tire beads 14, 14' comprise respective reinforcing annular cores 15 and 15' called tire bead cores. The carcass 16 is formed by at least one reinforcing ply comprising fabric or metal cords extending axially from one tire bead 14 to the other 14' in a helical tubular configuration and having their ends connected to Each tire beading core 15 and 15' is associated. In tires of the type known as radial tyre...

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Abstract

A method and a system for determining a cornering angle of a tire fitted on a vehicle during a running of the vehicle on a rolling surface includes the steps of determining the lateral acceleration of a portion of the tire tread spaced apart from the equatorial plane of the tire; determining a rotation speed of the tire; and determining the cornering angle from the lateral acceleration and the radial speed by using characteristic curves of lateral acceleration amplitude versus predetermined values of cornering angle for at least one rotation speed.

Description

technical field [0001] The present invention relates to a method and a system for determining the cornering angle of a tire mounted on such a vehicle during operation of the vehicle. Background technique [0002] In order to control the vehicle, information about tire conditions should be provided to the vehicle control system. For example, such information may include information relating to the load applied to the tire or the length of the contact area between the tire and the ground. [0003] PCT Patent Application No. WO03 / 016115 discloses a method for determining the load or loads applied to the tires of a motor vehicle and / or for monitoring tire pressure, wherein the pressure in each tire is detected during operation of the vehicle, And the rotational behavior of each individual wheel is observed. The load distribution parameter is also determined by comparing the rotational behavior and / or changes in said rotational behavior of individual wheels in a given driving s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C23/06G01M17/02
CPCB60G2400/41B60T8/1725B60W2422/70B60C19/00B60W2510/20B60W40/101B60C2019/004B60G2800/212B60T2240/04
Inventor 费德里克·曼科苏马西莫·布鲁萨罗斯科丹尼尔·阿罗西奥
Owner PIRELLI TYRE SPA
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