(19)
(11)EP 1 975 825 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
22.07.2015 Bulletin 2015/30

(43)Date of publication A2:
01.10.2008 Bulletin 2008/40

(21)Application number: 08005585.8

(22)Date of filing:  26.03.2008
(51)Int. Cl.: 
G06F 17/50  (2006.01)
B60C 99/00  (2006.01)
B29D 30/00  (2006.01)
(84)Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30)Priority: 28.03.2007 JP 2007084085
28.03.2007 JP 2007084974

(71)Applicant: The Yokohama Rubber Co., Ltd.
Minato-ku Tokyo 105-8685 (JP)

(72)Inventors:
  • Miyashita, Naoshi
    Oiwake Hiratsuka City Kanagawa 254-8601 (JP)
  • Kabe, Kazuyuki
    Oiwake Hiratsuka City Kanagawa 254-8601 (JP)

(74)Representative: Hoffmann Eitle 
Patent- und Rechtsanwälte PartmbB Arabellastraße 30
81925 München
81925 München (DE)

  


(54)Tire model determining method, tire transient response data calculating method, tire evaluating method, and tire designing method


(57) A transient response of a tire is simulated by using a effective data of a physical amount. The physical amount is set as a rolling condition of the tire and varies in time. The effective data of the physical amount is calculated by a convolution integral of a response function of an introduced first-order lag response and a time gradient of time-series data of the physical amount. In a tire model determining method, a time constant of a response function of the first-order lag response is determined from measured transient response data. In a tire transient response data calculating method, a transient response data is calculated by using the effective data of the physical amount which is calculated by using a desired physical amount and the first-order lag response.