Drive assist system
First Claim
1. A drive assist system comprising:
- an assist starting part to start assist of lane change on a basis of an input of an input device;
a detection part to detect relative distances and relative speeds between a vehicle and other vehicles;
a calculation part to calculate collision risks to the other vehicles at a time that the vehicle changes a lane on a basis of the relative distances and the relative speeds detected by the detection part;
a first judgment part to judge whether the lane can be changed or not on the basis of the relative distances, the relative speeds and the collision risks;
a decision part to decide a target space for lane change on the basis of the relative distances and the relative speeds when the first judgment part judges that the lane cannot be changed;
a second judgment part to judge whether there is a lane changeable space in the target space or not;
a speed setting part to set a target speed for making the vehicle go to a lane change waiting position, the lane change waiting position representing a position in which a relative distance between the vehicle and a forward vehicle in the target space is shorter than a relative position between the vehicle and a following vehicle in the target space, when the second judgment part judges that there is not a lane changeable space and to set the target speed for making the vehicle go to a lane changeable position when the second judgment part judges that there is the space; and
a control part to make control so that a speed of the vehicle reaches the target speed.
3 Assignments
0 Petitions
Accused Products
Abstract
A drive assist system includes an assist starting part starting assist, a detection part detecting relative distances and speeds between a vehicles, a calculation part calculating collision risks when changing a lane by the basis of the relative distances and speeds, a first judgment part judging whether the lane can be changed by the relative distances, speeds and the collision risks, a decision part deciding a target space for lane change by the relative distances and speeds when the lane cannot be changed, a second judgment part judging whether a lane changeable space is in the target space, a setting part setting a target speed for the vehicle go to a lane change waiting position when no space and to setting a target speed the vehicle enters a lane changeable position when there is the space, and a control part controlling a speed of the vehicle reaches the target speed.
26 Citations
19 Claims
-
1. A drive assist system comprising:
-
an assist starting part to start assist of lane change on a basis of an input of an input device; a detection part to detect relative distances and relative speeds between a vehicle and other vehicles; a calculation part to calculate collision risks to the other vehicles at a time that the vehicle changes a lane on a basis of the relative distances and the relative speeds detected by the detection part; a first judgment part to judge whether the lane can be changed or not on the basis of the relative distances, the relative speeds and the collision risks; a decision part to decide a target space for lane change on the basis of the relative distances and the relative speeds when the first judgment part judges that the lane cannot be changed; a second judgment part to judge whether there is a lane changeable space in the target space or not; a speed setting part to set a target speed for making the vehicle go to a lane change waiting position, the lane change waiting position representing a position in which a relative distance between the vehicle and a forward vehicle in the target space is shorter than a relative position between the vehicle and a following vehicle in the target space, when the second judgment part judges that there is not a lane changeable space and to set the target speed for making the vehicle go to a lane changeable position when the second judgment part judges that there is the space; and a control part to make control so that a speed of the vehicle reaches the target speed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
Specification