Vehicle driving support apparatus
AssigneeFuji Jukogyo Kabushiki Kaisha
InventorsHiroki KATO, Yuji Kii
Life of this patent
Estimating the term…
Abstract
A pressure reduction start distance is obtained (S9) based upon a deceleration after an operation of an automatic brake. When an obstacle-to-vehicle distance between a vehicle and an obstacle ahead becomes a distance obtained by adding the pressure reduction start distance to a target stopping distance to the obstacle ahead, the reduction of the brake pressure is started (S11) to suppress a pitching vibration generated before and after the vehicle stops. When the obstacle-to-vehicle distance becomes a stopping brake start distance that is just before the target stopping distance, the brake pressure is increased (S13) so as to allow the vehicle to stop.
Claims4
A vehicle driving support apparatus comprising:
- a forward-monitoring unit that is mounted to a vehicle for monitoring a driving environment ahead of the vehicle in the advancing direction;
- a time-to-collision calculating unit that detects an obstacle ahead based upon the driving environment ahead of the vehicle, which is detected by the forward-monitoring unit, and obtains a time-to-collision based upon an obstacle-to-vehicle distance between the obstacle ahead and the vehicle and a relative vehicle speed;
- and
- an automatic braking control unit that operates an automatic braking, reduces a braking pressure immediately before a target stopping position, and increases the braking pressure until immediately before the vehicle stops, when the time-to-collision obtained by the time-to-collision calculating unit is less than a predetermined braking assist determination time, wherein
- the automatic braking control unit obtains a braking pressure reduction start distance between the obstacle ahead and the vehicle based upon the deceleration during the operation of the automatic braking, reduces the braking pressure when the obstacle-to-vehicle distance reaches the pressure reduction start distance, and increases the braking pressure when the obstacle-to-vehicle distance reaches a predetermined stopping braking start distance immediately before the vehicle stops.
Dependencies are inferred from the claim text.