Title:
ROAD SURFACE FRICTION COEFFICIENT ESTIMATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/113781
Kind Code:
A1
Abstract:
A road surface friction coefficient estimating device comprises a means for finding a first estimated value (Mnsp_estm) of external force to be compared (S102-S116, S118-2), a means for finding a second estimated value (Mnsp_sens) (S118-1), and a plurality of increase/decrease operation amount determining means (34_k) each for determining the increase/decrease operation amount (Δμ_k) of the friction coefficient estimated value on the basis of the first estimated value (Mnsp_estm) and the second estimated value (Mnsp_sens), and updates the friction coefficient estimated value according to Δμ_k. The increase/decrease operation amount determining means (34_1, 34_2) determine Δμ_1, Δμ_2 according to the deviation of filtering value between the first estimated value and the second estimated value, and the increase/ decrease operation amount determining means (34_3) determines Δμ_1 according to the deviation between the first estimated value and the second estimated value.
Inventors:
TAKENAKA TORU (JP)
URABE HIROYUKI (JP)
MORI YOSHIHIRO (JP)
URABE HIROYUKI (JP)
MORI YOSHIHIRO (JP)
Application Number:
PCT/JP2010/055325
Publication Date:
October 07, 2010
Filing Date:
March 26, 2010
Export Citation:
Assignee:
HONDA MOTOR CO LTD (JP)
TAKENAKA TORU (JP)
URABE HIROYUKI (JP)
MORI YOSHIHIRO (JP)
TAKENAKA TORU (JP)
URABE HIROYUKI (JP)
MORI YOSHIHIRO (JP)
International Classes:
B60W40/068; B60W40/10; B62D6/00; B62D101/00; B62D103/00; B62D111/00; B62D113/00; B62D137/00
Domestic Patent References:
| WO2007018188A1 | 2007-02-15 |
Foreign References:
| JP2003341500A | 2003-12-03 | |||
| JP2006264561A | 2006-10-05 | |||
| JP2007030748A | 2007-02-08 |
Attorney, Agent or Firm:
SATO & ASSOCIATES (JP)
Patent business corporation creation international patent firm (JP)
Patent business corporation creation international patent firm (JP)
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