Filing Information

Inventor(s)	Ryuzo Sakakiyama ·
Assignee(s)	Fuji Jukogyo Kabushiki Kaisha ·  View assignee updates
Attorney/Agent(s)	Smith, Gambrell & Russell, LLP ·
Primary Examiner	Lesley D. Morris ·
Assistant Examiner	Daniel Yeagley ·
Application Number	US9984149
Filing date	10/29/2001
Issue date	10/21/2003
Prior Publication Data	US20020055416 - 05/09/2002
Predicted expiration date	11/16/2021
Patent term adjustment	18
U.S. Classifications	180/197  · 701/89  · 701/69  · 180/248  ·
International Classifications	--
Kind Code	B2
International Classifications	180197 · 180233 · 180248 · 180249 · 180242 · 701 67 · 701 69 · 701 82 · 701 89 · 701 1 · 701 87 · 192 541 · 477174 ·
Foreign Priority	JP2000329348 - 10/27/2000 ·

Patent Family

Abstract

A power distribution control system for a vehicle, in which a front/rear drive-force distribution control unit computes a torque-response-torque, a revolution-difference-response-torque and a yaw-rate feed back torque. When a torque down command by a traction control is not outputted to an engine control unit, and a braking force control is not active, a transfer clutch torque is setted as defined by a predetermined equation.

Independent Claims | See all claims (12)

1. 1. A power distribution control system for a vehicle comprising: a vehicle motion controller for controlling a motion of the vehicle; a power distribution controller; and a variable capacity torque transmission clutch operated by an operating torque set by said power distribution controller; wherein said power distribution controller includes: first torque setting means for computing a torque-response-torque that is based on an input torque received from a drive source and distributed to the front and rear wheels; second torque setting means for computing a revolution-difference-response-torque based on a revolution-difference between a front shaft and a rear shaft; and operating torque setting means for computing said operating torque using at least said torque-response-torque and said revolution-difference-response-torque, wherein when said vehicle motion controller operates, said operating torque setting means computes said operating torque except said revolution-difference-response-torque.
2. 2. A power distribution control system for a vehicle comprising: a vehicle motion controller for controlling a motion of the vehicle; and a variable capacity torque transmission clutch operated by an operating torque set by a power distribution controller; wherein said power distribution controller includes: first torque setting means for computing a torque-response-torque that is based on an input torque received from a drive source and distributed drive power to the front and rear wheels; second torque setting means for computing a revolution-difference-response-torque based on a revolution-difference between a front shaft and a rear shaft; yaw-rate feedback torque setting means for computing a yaw rate feedback torque based on a yawing state of the vehicle; and operating torque setting means for computing said operating torque using at least said torque-response-torque, said revolution-difference-response-torque and said yaw rate feedback torque, wherein when said vehicle motion control means operates, said operating torque setting means computes said operating torque except said revolution-difference-response-torque and said yaw rate feedback torque.