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US 7,252,346 B2Granted
Braking force control apparatus and method for automotive vehicle
AssigneeNissan Motor Co., Ltd.
InventorTakuya Higuchi
Life of this patent
Estimating the term…
Abstract
In brake control apparatus and method for an automotive vehicle, a cornering stability control section is configured to start a provision of the braking force for the vehicle when a cornering limit estimating section estimates that a cornering state variable of the vehicle (Vp) is in excess of the braking operation threshold value (kVLp) after the predetermined delay time (Δt) is elapsed from a present time.
Claims22
A braking force control apparatus for an automotive vehicle, comprising:
- a cornering stability control section that calculates a target deceleration required to maintain a vehicular stability cornering when determining that a cornering state variable of the vehicle is in excess of a braking operation threshold value which has a slight margin for a limit cornering state variable up to which the vehicle is enabled to travel stably and provides a braking force in accordance with the target deceleration for the vehicle;
- and a cornering limit estimating section that estimates whether the cornering state variable of the vehicle is in excess of the braking operation threshold value after a predetermined delay time is elapsed from a present time, the cornering stability control section being configured to start a provision of the braking force for the vehicle when the cornering limit estimating section estimates that the cornering state variable of the vehicle is in excess of the braking operation threshold value after the predetermined delay time is elapsed from the present time.
A braking force control method for an automotive vehicle, comprising:
- calculating a target deceleration required to maintain a vehicular stability cornering, and in accordance with which a braking force is provided when determining that a cornering state variable of the vehicle is in excess of a braking operation threshold value which has a slight margin for a limit cornering state variable up to which the vehicle is enabled to travel stably;
- estimating whether the cornering state variable of the vehicle is in excess of the braking operation threshold value after a predetermined delay time is elapsed from a present time;
- and
- starting to provide the braking force for the vehicle when estimating that the cornering state variable of the vehicle is in excess of the braking operation threshold value after the predetermined time is elapsed from the present time.
1 more element
A braking force control apparatus for an automotive vehicle, comprising:
- cornering stability control means for calculating a target deceleration required to maintain a vehicular stability cornering when determining that a cornering state variable of the vehicle is in excess of a braking operation threshold value which has a slight margin for a limit cornering state variable up to which the vehicle is enabled to travel stably and for providing a braking force in accordance with the target deceleration for the vehicle;
- and a cornering limit estimating means for estimating whether the cornering state variable of the vehicle is in excess of the braking operation threshold value after a predetermined delay time is elapsed from a present time, the cornering stability control means being configured to start a provision of the braking force for the vehicle when the cornering limit estimating means estimates that the cornering state variable of the vehicle is in excess of the braking operation threshold value after the predetermined delay time is elapsed from the present time.
Dependencies are inferred from the claim text.