Motor vehicles – Having four wheels driven
Reexamination Certificate
2006-06-08
2009-12-01
Morris, Lesley D (Department: 3611)
Motor vehicles
Having four wheels driven
Reexamination Certificate
active
07624832
ABSTRACT:
With a drive power distribution control section, limited differential torque correction value TLSDS is estimated and calculated by a limited differential torque correction value calculating section based on input torque TCD. Also, a transfer torque calculating section calculates transfer torque TLSD2by multiplying input torque sensing transfer torque TLSD1by vehicle slip angular velocity correction coefficient K(dβ/dt). A transfer torque correction/output section then subtracts limited differential torque correction value TLSDS from the transfer torque TLSD2to calculate and output transfer torque TLSD. In this way, clutch engaging torque for carrying out front and rear drive power distribution is set with good accuracy, and it is possible to have both high cornering performance and high traction performance.
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Extended European Search report corresponding to EP 06 01 1846 dated Oct. 27, 2006.
Matsuno Koji
Nagura Tatsunori
Yoneda Takeshi
Fuji Jukogyo Kabushiki Kaisha
Morris Lesley D
Smith , Gambrell & Russell, LLP
Stabley Michael R
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