Title:
A VEHICLE
Document Type and Number:
WIPO Patent Application WO/2012/023162
Kind Code:
A1
Abstract:
This invention is concerning a driving torque distribution method for front-and-rear-wheel-independent-drive-type electric vehicles (FRID EVs) in which it is possible to get stable steering on a low friction coefficient road surface. This method is characterized by distributing driving torque to the left and right wheels of the front and rear wheels, considering not only load movement of the longitudinal direction but also load movement of the lateral direction which is generated at cornering. The load movements are estimated by detecting components of the 3-axis directions, i.e., longitudinal and lateral accelerations and yaw rate, and the steering angle and friction coefficient of the road surface. The effectiveness of the proposed driving torque distribution method was verified using simulators equivalent to the prototype FRID EV simulated with Matlab/Simulink and CarSim software. This method is expected to be indispensable to improving running performance of FRID EVs.
Inventors:
MUTOH NOBUYOSHI (JP)
KATO TADAHIKO (JP)
MURAKAMI KAZUTOSHI (JP)
KATO TADAHIKO (JP)
MURAKAMI KAZUTOSHI (JP)
Application Number:
PCT/JP2010/005152
Publication Date:
February 23, 2012
Filing Date:
August 20, 2010
Export Citation:
Assignee:
MUTOH NOBUYOSHI (JP)
UNIVANCE CORP (JP)
KATO TADAHIKO (JP)
MURAKAMI KAZUTOSHI (JP)
UNIVANCE CORP (JP)
KATO TADAHIKO (JP)
MURAKAMI KAZUTOSHI (JP)
International Classes:
B60L15/20; B60L9/18
Foreign References:
| JP2008228407A | 2008-09-25 | |||
| JP2009149247A | 2009-07-09 | |||
| JP2010155528A | 2010-07-15 | |||
| JP2007282406A | 2007-10-25 | |||
| JP2009044916A | 2009-02-26 |
Attorney, Agent or Firm:
HIRATA, Tadao (World-Wide-Center 1-13, Sanban-cho, Chiyoda-k, Tokyo 75, JP)
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Claims: