Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Control of power distribution between vehicle axis or wheels
Reexamination Certificate
2005-01-11
2005-01-11
Jeanglaude, Gertrude A. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Control of power distribution between vehicle axis or wheels
C701S081000, C701S087000, C180S197000
Reexamination Certificate
active
06842681
ABSTRACT:
A torque distribution control device for a four-wheel drive vehicle has a torque distribution device for distributing the drive power transmitted from an engine to either of the front wheels or the rear wheels as prime drive wheels, to other wheels as sub-drive wheels. The control device judges whether or not an abnormality is involved in wheel speed signals which are input from wheel speed sensors associated respectively with the front and rear wheels. A normal-state method of calculating a command torque which is applied to the torque distribution device to vary the drive power transmitted to the sub-drive wheels, is then altered to an abnormal-state method of calculating the command torque based on data which does not include one wheel speed signal involving the abnormality when the same occurs with one of the wheel speed signals, whereby the vehicle is enabled to continue the four-wheel drive even when the abnormality occurs.
REFERENCES:
patent: 5170343 (1992-12-01), Matsuda
patent: 6-72171 (1994-03-01), None
patent: 6-289039 (1994-10-01), None
patent: 2001-277883 (2001-10-01), None
Imai Fukami
Inagaki Tatsuya
Ito Satomi
Kato Kiyoshige
Wakao Hisaaki
Jeanglaude Gertrude A.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Toyoda Koki Kabushiki Kaisha
LandOfFree
Torque distribution control device for four-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 Torque distribution control device for four-wheel drive vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Torque distribution control device for four-wheel drive vehicle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3410736