Travel assist device

Abstract

The invention relates to a travel assist device. The travel assist device (10) controls a safety device (30) for avoiding collision between a host vehicle (60) and an object on basis of detection information from object detection devices (21, 22) for detecting objects in vicinity of a host vehicle. The travel assist device (10) is equipped with: an operation determination unit (14) for calculatingthe estimated time of collision between the object and the vehicle, and operating the safety device when the estimated collision time is equal to or less than a prescribed operation timing; a stop / delay unit (41) for executing an operation stop for stopping operation of the safety device, or executing an operation delay for delaying the operation timing, under the condition that the driver has implemented a steering operation to avoid a vehicle collision; and a suppression unit (42) for suppressing the operation stop or operation delay, under the condition that the object being targeted for collision avoidance along the path of said vehicle following the steering operation by the driver has been recognized on the basis of the detection information.

Description

[0001] Cross References to Related Applications [0002] This application is based on Japanese Application No. 2018-097455 filed on May 21, 2018, and its content is cited here. technical field [0003] The present disclosure relates to a driving assistance device capable of performing collision avoidance control of a vehicle. Background technique [0004] A driving assistance device is known that includes a pre-collision safety (PCS) system that detects objects around the host vehicle and activates the safety device as necessary to avoid or reduce a collision of the host vehicle. Among such driving assistance devices, there is known a technique of delaying (modifying) or preventing (overriding) the operation of the PCS system when the driver performs a collision avoidance operation. For example, in Patent Document 1, when the driver performs a collision avoidance operation, unnecessary operation of the safety device is avoided by delaying the timing at which the safety devi...

AI Technical Summary

Problems solved by technology

[0006] There are cases where the risk of a collision cannot be sufficiently reduced even if the driver performs a collision avoidance operation

For example, when the driver performs a steering operation to avoid a collision with the preceding vehicle, if the preceding vehicle is steered in the same direction as the own vehicle, the risk of collision may not be sufficiently reduced.

In this case, if the operation of the PCS system is delayed or stopped due to the driver's collision avoidance operation, the avoidance or reduction of the collision will be insufficient, and the safety of the collision may be reduced.

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