Title:
VEHICLE DRIVE FORCE CONTROL METHOD AND VEHICLE DRIVE FORCE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/075260
Kind Code:
A1
Abstract:
Provided is a vehicle drive force control method that comprises measuring a frictional coefficient and a slip rate on a vehicle travel road surface in a prescribed measurement period, generating a µ-S characteristic map that represents a relationship between the frictional coefficient and the slip rate on the travel road surface on the basis of a combination of the frictional coefficient and the slip rate obtained in each measurement period, determining whether the travel road surface is a muddy road surface on the basis of the generated µ-S characteristic map, identifying an appropriate slip rate zone on the µ-S characteristic map in which the slip rate is lower than the slip rate during maximum friction and the road surface transmission torque is equal to or greater than a prescribed value when the travel road surface is determined to be a muddy road surface, and adjusting the drive force so that the slip rate is included in the appropriate slip rate zone.
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Inventors:
SUZUKI RYOTA (JP)
OTA RIHITO (JP)
OTA RIHITO (JP)
Application Number:
PCT/JP2022/037515
Publication Date:
April 11, 2024
Filing Date:
October 06, 2022
Export Citation:
Assignee:
NISSAN MOTOR (JP)
International Classes:
B60L15/20
Domestic Patent References:
| WO2015151193A1 | 2015-10-08 |
Foreign References:
| US20150166072A1 | 2015-06-18 | |||
| JP2015033291A | 2015-02-16 | |||
| JP2006136174A | 2006-05-25 | |||
| JP2015216724A | 2015-12-03 | |||
| JP2020032850A | 2020-03-05 | |||
| US20160250930A1 | 2016-09-01 | |||
| JPS4716003B1 |
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
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