| 摘要 |
PROBLEM TO BE SOLVED: To provide a driving force control device for a vehicle that properly considers driving torque requested by a driver that does not interfere uphill driving on a sloped road, that can be easily adopted even when accelerator-engine torque characteristics differ, that can be properly operated with the same operation feeling, that inhibits not only a currently occurring excessive driving force, but also an excessive driving force presumably to occur in the future, that properly maintains grip forces of tires, and that improves driving stability of the vehicle. SOLUTION: Friction-circle limit values of respective wheels are calculated, requested resultant tire forces and resultant tire forces of the wheels are calculated, requested excessive tire forces and excessive tire forces of the wheels are calculated, over-torque is calculated, and a control amount is calculated. With reference to a preset map that has been obtained in advance, the minimum driving force is set on the basis of a road-surface slope and requested engine torque, and the minimum driving torque serving as a lower limit is calculated on the basis of the minimum driving force and a total gear ratio of the vehicle so as to perform lower-limit correction of the control amount. COPYRIGHT: (C)2011,JPO&INPIT
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