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US 6,634,451 B2Granted
Power distribution control system for a vehicle
AssigneeFuji Jukogyo Kabushiki Kaisha
InventorRyuzo Sakakiyama
Life of this patent
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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.
Claims12
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.
7 more elements
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.
7 more elements
Dependencies are inferred from the claim text.