Automatic emergency braking device

An automatic emergency braking device comprising:

• a collision determination unit that executes collision determination to determine whether or not there is a possibility of collision between an own vehicle and an oncoming vehicle;
• a brake control unit that activates an automatic emergency brake of the own vehicle according to a determination result of the collision determination;
• and
• an execution timing change unit that changes an execution timing of the collision determination,
• wherein the execution timing change unit includes:
• a determination unit that determines whether or not a prediction condition indicating that entry of the own vehicle to an opposite lane is predicted is satisfied;
• and
• a setting unit that, when the prediction condition is satisfied, sets the execution timing of the collision determination to be earlier than a timing in a case in which the prediction condition is not satisfied,
• wherein the execution timing change unit changes the execution timing of the collision determination by changing a threshold for distinguishing whether or not the own vehicle enters the opposite lane,
• wherein the setting unit
• sets a first threshold as the threshold in the collision determination unit when the prediction condition is not satisfied, and
• sets, as the threshold, a second threshold with which it is more easily distinguishable that the own vehicle enters the opposite lane than the first threshold, in the collision determination unit when the prediction condition is satisfied, and
• wherein the collision determination unit
• determines whether or not an entry condition indicating that the own vehicle enters the opposite lane is satisfied, on a basis of the threshold set by the setting unit,
• executes the collision determination when the entry condition is satisfied, and
• suspends execution of the collision determination when the entry condition is not satisfied.