Patent ID: 8315774
Filing Date: 2012-11-20
Classification: B60W,F02D

Abstract:
1. A vehicle driving-force control device comprising: first-tire-force estimation means configured to estimate, as a first tire force, a tire force to be generated on a wheel of a vehicle on the basis of a request from a driver; second-tire-force estimation means configured to estimate a tire force currently being generated on the wheel as a second tire force; friction-circle limit-value setting means configured to set a friction-circle limit value of a tire force; first-excessive-tire-force estimation means configured to estimate, as a first excessive tire force, a tire force exceeding the friction-circle limit value on the basis of the first tire force and the friction-circle limit value; second-excessive-tire-force estimation means configured to estimate, as a second excessive tire force, a tire force exceeding the friction-circle limit value on the basis of the second tire force and the friction-circle limit value; control-amount setting means configured to set a control amount of at least one of a driving force and a driving torque for driving the vehicle on the basis of the first excessive tire force and the second excessive tire force; road-surface-slope detection means configured to detect a road surface slope of a driving road; driver-requested engine-torque calculation means configured to calculate an engine torque requested by the driver as a driver-requested engine torque; and control-amount correction means configured to set a lower limit of the control amount on the basis of the road surface slope of the driving road and the driver-requested engine torque so as to perform lower-limit correction of the control amount.