Driving support method, and driving support device
AssigneeIsuzu Motors Limited
InventorsWasantha Oshita, Masaichi Takahashi, Shinichiro Fukazawa
Life of this patent
Estimating the term…
Abstract
This driving support device outputs a target acceleration/deceleration for causing a host vehicle to track a preceding vehicle, if there is a preceding vehicle to track, and if there is no preceding vehicle to track, outputs a target acceleration for bringing the speed of the host vehicle to a set fixed speed, and modifies (corrects) the target acceleration in accordance with the lane width.
Claims4
A driving assistance method of assisting driving of a car, the driving assistance method comprising:
- a leading-car determination step of determining whether there is a leading car to be followed by own car;
- a lane-width detection step of detecting a lane width for the own car that is traveling;
- and
- a target-control-value output step of outputting a target acceleration/deceleration speed or a target acceleration speed of the own car for performing automatic traveling, wherein the target-control-value output step includes:
- outputting, when a determination result indicating that there is a leading car to be followed is obtained leading-car determination step, the target acceleration/deceleration speed for causing the own car to follow the leading car on a basis of a relative speed and an inter-car distance between the own car and the leading car;
- and
- outputting, when a determination result indicating that there are not leading cars to be followed is obtained in the leading-car determination step and a speed of the own car is smaller than a set speed, the target acceleration speed for causing the speed of the own car to be a set certain speed and correcting the target acceleration speed to be output based on a ratio between the lane width obtained in the lane-width detection step and a car width of the own car.
A driving assistance apparatus that assists driving of a car, the driving assistance apparatus comprising:
- a leading-car determination section that determines whether there is a leading car to be followed by own car;
- a lane-width detection section that detects a lane width for the own car that is traveling;
- and
- a target-control-value output section that outputs a target acceleration/deceleration speed or a target acceleration speed of the own car for performing automatic traveling, wherein the target-control-value output section:
- outputs, when a determination result indicating that there is a leading car to be followed is s obtained by the leading-car determination section, the target acceleration/deceleration speed for causing the own car to follow the leading car on a basis of a relative speed and an inter-car distance between the own car and the leading car;
- and
- outputs, when a determination result indicating that there are no leading cars to be followed is obtained by the leading-car determination section and a speed of the own car is smaller than a set speed, the target acceleration speed for causing the speed of the own car to be a set certain speed and corrects the target acceleration speed to be output based on a ratio between the lane width obtained in the lane-width detection step and a car width of the own car.
Dependencies are inferred from the claim text.