Title:
VEHICLE CONTROLLER
Document Type and Number:
WIPO Patent Application WO/1999/028172
Kind Code:
A1
Abstract:
The wheel or car-body load of each of the wheels is estimated from the fact that the gain of the resonance frequency of the tire correspond to the wheel load of each wheel, and the estimated wheel loads or car-body loads are utilized for the brake control or acceleration control. The high precision brake control or acceleration control can be realized by utilizing the wheel loads estimated easily without using a special device. The controller comprises a resonance frequency sensing means which measures the resonance frequency generated in the tire of each wheel while the vehicle is traveling, and gain sensing means which measures the gain of the resonance frequency measured by the resonance frequency sensing means. In accordance with the gains of the resonance frequencies of the tires the wheel vertical loads or car-body loads of the wheels are estimated.
Inventors:
SAWADA MAMORU (JP)
ONOGI NOBUYOSHI (JP)
ONOGI NOBUYOSHI (JP)
Application Number:
PCT/JP1998/005283
Publication Date:
June 10, 1999
Filing Date:
November 24, 1998
Export Citation:
Assignee:
DENSO CORP (JP)
SAWADA MAMORU (JP)
ONOGI NOBUYOSHI (JP)
SAWADA MAMORU (JP)
ONOGI NOBUYOSHI (JP)
International Classes:
B60C23/06; B60G17/019; B60T8/172; B60T8/18; G01G19/08; G01G19/12; (IPC1-7): B60T8/00; B60T8/22
Foreign References:
| JPH09196791A | 1997-07-31 | |||
| JPH0526917A | 1993-02-05 | |||
| JPH0798325A | 1995-04-11 | |||
| JPH0424151A | 1992-01-28 | |||
| JPH07251751A | 1995-10-03 | |||
| JPH0872514A | 1996-03-19 | |||
| JPH09196791A | 1997-07-31 |
Other References:
See also references of EP 0968892A4
Attorney, Agent or Firm:
Ito, Yoji (Meieki 2-chome Nakamura-ku, Nagoya-shi Aichi-Pref., JP)
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