US 12,466,366 B2
Automatic emergency braking device
Jian Wang, Tokyo (JP); and Taku Takahama, Tokyo (JP)
Assigned to HITACHI ASTEMO, LTD., Hitachinaka (JP)
Appl. No. 18/553,273
Filed by HITACHI ASTEMO, LTD., Hitachinaka (JP)
PCT Filed Mar. 1, 2022, PCT No. PCT/JP2022/008638
§ 371(c)(1), (2) Date Sep. 29, 2023,
PCT Pub. No. WO2023/026522, PCT Pub. Date Mar. 2, 2023.
Claims priority of application No. 2021-136689 (JP), filed on Aug. 24, 2021.
Prior Publication US 2024/0174203 A1, May 30, 2024
Int. Cl. B60T 7/22 (2006.01)
CPC B60T 7/22 (2013.01) [B60T 2201/022 (2013.01); B60T 2210/32 (2013.01); B60T 2220/03 (2013.01); B60T 2250/03 (2013.01); B60T 2250/04 (2013.01)] 5 Claims
OG exemplary drawing
 
1. 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.