Patent ID: 8781686

Claim:
A vehicle turning behavior control apparatus comprising: a controlling section to limit a vehicle turning behavior of a vehicle accompanying a steering operation, to a limit turning behavior corresponding to an actual steering speed of the steering operation, by a vehicle speed decrease, the controlling section being configured to calculate a modified steering speed from the actual steering speed, and to calculate the limit turning behavior in accordance with the modified steering speed; wherein the vehicle turning behavior control apparatus comprises an apparatus configured to limit the turning behavior due to the steering operation to the limit turning behavior corresponding to the steering speed, by the vehicle speed decrease, wherein the controlling section is configured to use the actual steering speed as the modified steering speed, when the actual steering speed is increasing during a turning steering for increasing a turning amount, or a highest value of the actual steering speed before a decrease of the actual steering speed, as the modified steering speed, when the actual steering speed is decreasing during the turning steering, so that the modified steering speed is higher than the actual steering speed, wherein the controlling section is configured to continue a selective use of the modified steering speed at least until a start of a returning steering for decreasing the steering amount, and wherein the controlling section is further configured to determine, from the actual steering speed, a turning steering speed which is equal to the actual steering speed during the turning steering for increasing the turning amount and which is held equal to zero during the returning steering, to calculate the modified steering speed in accordance with the turning steering speed so that the modified steering speed is higher than the turning steering speed when the turning steering speed decreases during the turning steering for increasing the turning amount, and to determine the limit turning behavior in accordance with the modified steering speed.