Motor vehicles – Having four wheels driven – With manually operated means for disengaging drive to one or...
Patent
1997-01-17
1999-04-20
Hurley, Kevin
Motor vehicles
Having four wheels driven
With manually operated means for disengaging drive to one or...
180197, 701 89, B60K 1720
Patent
active
058949046
ABSTRACT:
A 4-wheel drive vehicle has a driving force control method in which a portion of a driving force for front wheels is distributed to rear wheels through clutches. In a 4-wheel drive state in which a driving force T.sub.p is distributed to rear wheels, for example, if the vehicle is turned leftwards to generate a difference W.sub.R -W.sub.L between left and right rear wheel speeds, it is ensured that a driving force T.sub.R distributed to the right rear wheel, which is an outer wheel during turning of the vehicle, is larger than a driving force T.sub.L distributed to the left rear wheel, which is an inner wheel during turning of the vehicle, thereby providing an enhancement in turning performance. As the difference W.sub.R -W.sub.L between the left and right rear wheel speeds is increased as a result of decreasing of the turning radius of the vehicle, the driving force T.sub.P (=T.sub.L +T.sub.R) distributed to the rear wheels is decreased to avoid an increase in travel resistance. Thus, it is possible to prevent the occurrence of problems such as a deterioration of specific fuel consumption, an abnormal sound generated in a drive system and an increase in the load of the drive system due to an increase in travel resistance during turning of the vehicle.
REFERENCES:
patent: 4921065 (1990-05-01), Hamada et al.
patent: 4966250 (1990-10-01), Imaseki
patent: 5341893 (1994-08-01), Fukui et al.
patent: 5396421 (1995-03-01), Niikura et al.
patent: 5701247 (1997-12-01), Sasaki
Hamada Tetsuro
Hikita Masayuki
Kobayashi Kazunori
Kuroda Koji
Yakou Takayuki
Honda Giken Kogyo Kabushiki Kaisha
Hurley Kevin
LandOfFree
Driving force control method in 4-wheel drive vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Driving force control method in 4-wheel drive vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driving force control method in 4-wheel drive vehicle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2241685