Vehicle motion control device

A vehicle motion control device operable in a vehicle in a turning state in which two wheels are at an inner side of a turning direction and two wheels are at an outer side of the turning direction, comprising:

• index obtaining means for obtaining an index value that indicates a degree of tendency that an excessive roll angle occurs on a vehicle;
• braking force controlling means for exerting a first braking force only on one of the two wheels at the inner side of the turning direction when the vehicle is in the turning state and the index value is equal to or greater than a first predetermined value and less than a second predetermined value, which first braking force itself prevents an increase in a height of a vehicle body at a section above said wheel at the inner side of the turning direction;
• the braking force controlling means also exerting a second braking force on one of the two wheels at the outer side of the turning direction when the vehicle is in the turning state and the index value is equal to or greater than the second predetermined value, which second braking force is in addition to the first braking force, to produce a yawing moment in a direction opposite the turning direction;
• the braking force controlling means varying the first braking force according to a variation in the index value;
• and
• the braking force controlling means varying the second braking force according to a variation in the index value.

A vehicle motion control device comprising:

• index obtaining means for obtaining an index value that indicates a degree of tendency that an excessive roll angle occurs on a vehicle;
• and
• braking force controlling means for exerting a first braking force only on a wheel at the inner side of a turning direction when the vehicle is in a turning state and the index value is equal to or greater than a first predetermined value and less than a second predetermined value, which first braking force itself prevents an increase in a height of a vehicle body at a section above said wheel at the inner side of the turning direction, the braking force controlling means changing the value of the first braking force according to the index value,
• wherein the braking force controlling means is configured to exert a second braking force on a front wheel at the outer side of the turning direction when the vehicle is in the turning state and the index value is equal to or greater than the second predetermined value that is greater than the first predetermined value.