Vehicle travel control device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorYoshitaka Fujita
Life of this patent
Estimating the term…
Abstract
A first active stabilizer is installed on a main drive wheel side, and a second active stabilizer is installed on a subordinate drive wheel side. A control device performs load distribution control when a difference in actual driving force between left and right sides of a vehicle exceeds a threshold value during acceleration. A high-μ side is one of the left and right sides with a greater actual driving force, and a low-μ side is another of the left and right sides. The load distribution control includes a first mode performed when a vehicle speed is equal to or lower than a first reference value. In the first mode, the control device actuates the first active stabilizer in a direction to lift up the high-μ side and actuates the second active stabilizer in a direction to lift up the low-μ side.
Claims14
A vehicle travel control device comprising:
- a driving device driving at least a main drive wheel among the main drive wheel and a subordinate drive wheel of a vehicle;
- a first active stabilizer installed on a side of the main drive wheel;
- a second active stabilizer installed on a side of the subordinate drive wheel;
- and
- a control device performing load distribution control when a difference in actual driving force between a left side and a right side of the vehicle exceeds a threshold value during acceleration,
- wherein a high-μ side is one of the left side and the right side of the vehicle with a greater actual driving force, and a low-μ side is another of the left side and the right side of the vehicle,
- wherein the load distribution control includes:
- a first mode performed when a speed of the vehicle is equal to or lower than a first reference value;
- and
- a second mode performed when the speed of the vehicle is higher than a second reference value equal to or greater than the first reference value,
- wherein in the first mode, the control device actuates the first active stabilizer in a direction to lift up the high-μ side and actuates the second active stabilizer in a direction to lift up the low-μ side, and
- wherein in the second mode, the control device actuates the first active stabilizer in a direction to lift up the low-μ side and actuates the second active stabilizer in a direction to lift up the high-μ side.
A vehicle travel control device comprising:
- a driving device driving at least a main drive wheel among the main drive wheel and a subordinate drive wheel of a vehicle;
- a first active stabilizer installed on a side of the main drive wheel;
- a second active stabilizer installed on a side of the subordinate drive wheel;
- and
- a control device configured to:
- perform driving control that controls the driving device to generate a driving force and accelerate the vehicle;
- perform traction control that applies a braking force to a target wheel exhibiting a slip sign during acceleration by the driving control;
- and
- perform load distribution control when the traction control is performed during acceleration and a difference in actual driving force between a left side and a right side of the vehicle exceeds a threshold value,
- wherein a high-μ side is one of the left side and the right side with a greater actual driving force, and a low-μ side is another of the left side and the right side of the vehicle, and
- wherein when a speed of the vehicle is higher than a reference value, the control device actuates the first active stabilizer in a direction to lift up the low-μ side and actuates the second active stabilizer in a direction to lift up the high-μ side.
A vehicle travel control device comprising:
- a driving device driving at least a main drive wheel among the main drive wheel and a subordinate drive wheel of a vehicle;
- a first active stabilizer installed on a side of the main drive wheel;
- a second active stabilizer installed on a side of the subordinate drive wheel;
- and
- a control device performing load distribution control when a difference in actual driving force between a left side and a right side of the vehicle exceeds a threshold value during acceleration,
- wherein a high-μ side is one of the left side and the right side with a greater actual driving force, and a low-μ side is another of the left side and the right side,
- wherein a driving force of and a vertical load on the main drive wheel on the high-μ side are a high-μ side driving force and a high-μ side vertical load, respectively,
- wherein the load distribution control includes a first mode performed when the high-μ side driving force is equal to or greater than the high-μ side vertical load, and
- wherein in the first mode, the control device actuates the first active stabilizer in a direction to lift up the high-μ side and actuates the second active stabilizer in a direction to lift up the low-μ side.
Dependencies are inferred from the claim text.