Patent ID: 7980346
Filing Date: 2011-07-19
Classification: B60K,B60W

Abstract:
1. A vehicle control device for a vehicle equipped with a driving source that produces a force corresponding to a driving force request value so as to apply a vehicle driving force to the vehicle to increase a vehicle speed, and a brake system that produces a force corresponding to a braking force control amount so as to apply a vehicle braking force to the vehicle to reduce the vehicle speed, the control device comprising: a first driving force request value generation device that generates a first driving force request value based on an accelerating operation amount which is varied by an accelerating operation of a driver; a second driving force request value generation device that generates a second driving force request value based on a value corresponding to an actual vehicle speed and a value corresponding to a predetermined target vehicle speed so that the actual vehicle speed is equal to the target vehicle speed; a first braking force control amount generation device that generates a first braking force control amount based on a braking operation amount which is varied by a braking operation of the driver; a second braking force control amount generation device that generates a second braking force control amount based on the value corresponding to the actual vehicle speed and the value corresponding to the target vehicle speed so that the actual vehicle speed is equal to the target vehicle speed; and a vehicle propulsive force control device that causes the driving source to produce a force corresponding to the second driving force request value and causes the brake system to produce a force corresponding to the second braking force control amount when constant speed traveling control conditions necessary to make the actual vehicle speed equal to the target vehicle speed are satisfied, and that causes the driving source to produce a force corresponding to the first driving force request value and causes the brake system to produce a force corresponding to the first braking force control amount when the constant speed traveling control conditions are not satisfied; wherein the vehicle propulsive force control device includes: a first control termination time control device that, when a specific control termination time at which the constant speed traveling control conditions are changed from a satisfied state to an unsatisfied state comes while neither the accelerating operation nor the braking operation are performed, changes a first force, which is the greater of the vehicle driving force and the vehicle braking force at the specific control termination time, toward one of a vehicle driving force resulting from a force that the driving source produces in accordance with the first driving force request value and a vehicle braking force resulting from a force that the brake system produces in accordance with the first braking force control amount that corresponds to the first force after the specific control termination time; and a second control termination time control device that changes a second force, which is the smaller of the vehicle driving force and the vehicle braking force, toward one of the vehicle driving force resulting from a force that the driving source produces in accordance with the first driving force request value and the vehicle braking force resulting from a force that the brake system produces in accordance with the first braking, force control amount that corresponds to the second force after the specific control termination time so that a value of a vehicle propulsive force, which takes a positive value when acting in the same direction as the first force and takes a negative value when acting in the opposite direction of the first force and which has a magnitude equal to a value resulting from subtracting a magnitude of the second force from a magnitude of the first force, is equal to or smaller than the value of the vehicle propulsive force at the specific control termination time.