| 摘要 |
PROBLEM TO BE SOLVED: To suppress not only a driving force estimated that it is excessive at the moment or but also a driving force it will be excessive in the near future, and appropriately keeping a grip force of a tire to improve a running stability of a vehicle, regardless of being attached/unattached with a tire chain. SOLUTION: A driving force control device 1 calculates a friction circle limit value of each wheel, calculating a required tire resultant force of each wheel, calculating a tire resultant force of each tire, calculating a required over tire force of each wheel, calculating an over tire force of each wheel, calculating over torque by calculating the over tire force, and thereby calculates controlled variables. A first correction amount acquired based on an attached state of the tire chain and a vehicle body slide angular speed is compared with a second correction value acquired for suppressing slip of a vehicle wheel by theoretical fore-aft acceleration and actual fore-aft acceleration, a larger correction amount is subtracted to correct the controlled variables, and the corrected controlled variables are output to an engine control part 2. COPYRIGHT: (C)2009,JPO&INPIT
|
