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A method of determining vehicle properties

A vehicle and performance technology, applied in the field of electronic stability control system, can solve problems such as non-optimization

Inactive Publication Date: 2009-01-21
THE GOODYEAR TIRE & RUBBER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the tire model is not really representative of the vehicle and its components, the observer's results will not be optimal for the situation in which it encounters

Method used

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  • A method of determining vehicle properties
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Embodiment Construction

[0011] The following text is the most currently contemplated mode or modes of carrying out the invention. The description is for the purpose of illustrating the basic principle of the present invention, and should not be taken as a limiting meaning. The scope of the invention is best determined with reference to the appended claims.

[0012] Static tire data can be characterized after the tire has been built and includes tire characteristics such as tire size and type and capabilities of tire performance, including speed rating and load capacity, tire rolling radius, and tire forces and such as cornering stiffness Equal torque performance, etc. Some of this information is expressed in the form of the tire size imprinted on the tire, eg P215 / 65R1589H. In this tire size example, the static information includes: i) tire width 215mm, ii) tire aspect ratio 65%, which enables calculation of tire height which is 139.75mm, iii) wheel diameter 15 inches, iv) speed rating H, It indic...

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Abstract

Vehicle properties are determined by providing both actual and real-time data of the tires to the vehicle control system. The data includes both static and dynamic tire data. The properties are determined by the following steps: a) putting a vehicle in motion, the vehicle being provided with a set of tires and a vehicle control system wherein at least one tire has means to communicate with the vehicle control system and the vehicle control system has a processor, a vehicle observer, and a preprogrammed vehicle model; b) sending either static or dynamic tire information from the tire to the vehicle control system via the tire communication means; and c) estimating a vehicle property using the received tire information.

Description

technical field [0001] The present invention relates generally to electronic stability control systems, and more particularly to improving the performance of electronic stability control systems using both static and dynamic tire parameters. Background technique [0002] In operation, the vehicle, the tires of the vehicle, and the road on which the vehicle travels form a system. The mechanical characteristics of these three components must combine to produce the operating characteristics desired by the vehicle operator. The mechanical properties of the road are preset although they vary depending on the road. The mechanical properties of a tire are determined at the time of tire production, but will vary depending on road, pressure and tire wear. The vehicle's response to the road and tires is largely under the driver's control. As vehicle control systems become more complex, the vehicle's response to changing driving conditions can be controlled to a greater extent by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/172B60T8/1755B60C23/04
CPCB60T8/17551B60T2240/03B60T2230/02B60T8/1725B60W40/12B60C23/00
Inventor R·L·贝内迪特S·B·蔡K·A·多尔J·W·金塞思A·K·Y·罗D·R·米洛特A·H·斯皮克尔S·S·V·瓦杜里Y·郑
Owner THE GOODYEAR TIRE & RUBBER CO