Systems, methods, and other embodiments described herein relate to improving alert activation for rear collision avoidance. In one embodiment, a method includes responsive to detecting a target object that is located behind a subject vehicle, determining, by the subject vehicle, characteristics about a surrounding environment of the subject vehicle, including of the target object. The method includes analyzing the characteristics to identify lateral free space next to the subject vehicle that is an area without obstruction beside the subject vehicle. The method includes modifying a collision threshold for activating an alert to the target object according to the lateral free space.

Systems, methods, and other embodiments described herein relate to improving alert activation for rear collision avoidance. In one embodiment, a method includes, responsive to detecting a target object that is located behind a subject vehicle, determining, by the subject vehicle, characteristics about the target object. The method includes modifying a collision threshold for activating an alert directed to the target object according to the characteristics.

The present invention obtains a processor and a processing method, a rider-assistance system, and a straddle-type vehicle capable of improving a rider's safety.

A processor (20) includes: an acquisition section that acquires surrounding environment information about a straddle-type vehicle (100); a determination section that determines necessity of assistance operation executed by a rider-assistance system (1) to assist with the rider's operation; and a control section that makes an execution device (P) execute the assistance operation in the case where the determination section determines that the assistance operation is necessary. The determination section determines the necessity of the assistance operation by using: a collision index value that is an index value of a collision possibility of a following vehicle against the traveling straddle-type vehicle (100); and a stability index value that is an index value of a stability degree of a relative distance of the following vehicle to the traveling straddle-type vehicle (100).

Apparatus and methods for warning of an oncoming vehicle are disclosed. The apparatus comprises one or more sensors for detecting an oncoming vehicle, and a light emitting unit controllable to signal to a vehicle behind whether an oncoming vehicle has been detected, the light emitting unit being mounted so as to be visible to the vehicle behind. A controller detects an oncoming vehicle in dependence on information received from the one or more sensors, and controls the light emitting unit in dependence on whether an oncoming vehicle is detected.

A car and a method for detecting a road condition and warning a following vehicle are provided. The car includes a vehicle body, a road condition detection unit, a processing unit, and a display unit. The road condition detection unit is disposed on the vehicle body. The road condition detection unit is configured to detect the road condition in front of the vehicle body and generate a road condition signal. The processing unit is disposed on the vehicle body and configured to generate a display signal after receiving the road condition signal. The display unit is disposed on a rear windshield of the vehicle body and configured to generate a warning image after receiving the display signal, so as to warn a driver of the following vehicle of the road condition in front of the vehicle body.

The present disclosure provides a vehicle collision avoidance control device including: at least one first sensor configured to sense a first direction of a driver vehicle and to sense a first target vehicle in the first direction of the driver vehicle; at least one second sensor configured to sense a second direction that is opposite to the first direction of the driver vehicle and to sense a second target vehicle in the second direction of the driver vehicle; and a controller configured to output a vehicle control signal at least partially on the basis of processing of the first sensor and the second sensor, wherein the controller is configured to generate a primary vehicle control signal for avoiding a primary collision when a primary collision with the first target vehicle is predicted according to a first direction sensing result by the at least one first sensor, to modify the primary vehicle control signal into a secondary vehicle control signal on the basis of a result of sensing the second target vehicle by the at least one second sensor, and to output the secondary vehicle control signal.

Systems, methods, and other embodiments described herein relate to improving alert activation for rear collision avoidance. In one embodiment, a method includes, responsive to detecting a target object that is located behind a subject vehicle, determining, by the subject vehicle, characteristics about the target object. The method includes modifying a collision threshold for activating an alert directed to the target object according to the characteristics.

A safety lighting system for vehicles. A safety lighting system may include a display cover including a first portion, a second portion, and a third portion. The safety lighting system may further include at least one light source configured to selectively illuminate the first, second, and third portions of the display cover. The safety lighting system may further include a controller configured receive at least one of acceleration/deceleration information, braking information or throttle control information relating to the vehicle, and to responsively cause illumination of the first portion upon at least one of acceleration or operation of the throttle of the vehicle, to cause illumination of the second portion upon at least one of relatively low deceleration of the vehicle or deceleration of the vehicle without braking, and to cause illumination of the third portion upon at least one of relatively high deceleration or braking of the vehicle.

The present invention relates to a rear vehicle light assistant device that provides an improved means to assist in alerting drivers of their proximity to other vehicles. The device is comprised of a body, a fastener, and a Bluetooth speaker. The fastener allows the device to be universally attached to a plurality of different vehicle rears and the Bluetooth speaker allows the driver to be notified of their proximity to other vehicles. The device is also comprised of at least one camera, at least one sensor, and at least one light which all allow for the detection and notification of other drivers in close proximity to the user's vehicle in order to avoid collision and potential injury. Further, the camera allows the user to obtain video footage in the circumstance that a collision occurs.

A planned trajectory is analyzed by an L4 emergency braking module, before the trajectory is navigated by the autonomous driving vehicle (ADV). An L4 emergency braking signal is generated in response to an autonomous driving vehicle (ADV) determining that any portion of a planned trajectory of the ADV has a deceleration that is less than −2 m/sec.sup.2 and a time to collision with the ADV, by a vehicle following the ADV at a speed Z and a distance Y<100 m, during a period of 1 to 8 seconds after time 0 of the planned trajectory, if $\frac{T_X+Y}{Z}\le X$
for any time Xϵ{1 second . . . 8 seconds} after time 0, wherein T.sub.X is the location of the ADV in the trajectory at time X. Optionally, a sharp braking command can be issued by the L4 emergency braking module in response to activating the emergency braking signal.