Automatic Emergency Breaking Conditions

[harwax]

I know the Automatic Emergency Breaking system will kick in if a vehicle in front of me makes a sudden stop.

What if the object in front of me is a:
Person
Traffic sign
Tree

Will it also automatically stop me from crashing into it?

 

[Nikgen]

I know the Automatic Emergency Breaking system will kick in if a vehicle in front of me makes a sudden stop.

What if the object in front of me is a:
Person
Traffic sign
Tree

Will it also automatically stop me from crashing into it?

I suspect if the radar sensor could "see" it with sufficient time to process, then it would activate the AEB - but those objects are likely too small to reliably be picked up. However, last I checked, traffic signs and trees should never be in your intended forward path, so you've got bigger issues if they are!

 

[Pahaska]

I have found that it detects bicyclists reliably, whether in the lane or close adjacent to the lane. I had it put the brakes on several times while passing a cyclist on the the very right edge of the lane I was in. I don't know about trees, but I would guess yes. Most signs are probably too high to register.

BTW: It is "braking", not "breaking."

 

[Nikgen]

I have found that it detects bicyclists reliably, whether in the lane or close adjacent to the lane. I had it put the brakes on several times while passing a cyclist on the the very right edge of the lane I was in. I don't know about trees, but I would guess yes. Most signs are probably too high to register.

BTW: It is "braking", not "breaking."

How do you know that it's seeing cyclists? Before it kicks in you get a flashing caution/red car icon in the HUD and an audible alarm. I've had it signal, but not activate on me when someone in front slows down suddenly to turn, but does turn before I'd really need to break (it appears to sense the closure rate and not just distance). However, it seems scary if cyclists are triggering that for you? How close are you getting to them?

 

[Pahaska]

We have a cyclist (probably an illegal) who often rides on the 12" of pavement outside the right lane line on our hilly and curvy highway without lights in the early morning. He has only a small reflector. I have crested a hill several times to find him there and have the car react before I could. There is seldom a problem moving over for him since traffic is light, but the car reacts by the time I process that he is there.

 

[harwax]

I suspect if the radar sensor could "see" it with sufficient time to process, then it would activate the AEB - but those objects are likely too small to reliably be picked up. However, last I checked, traffic signs and trees should never be in your intended forward path, so you've got bigger issues if they are!

Traffic signs & trees are not in my intended path, but if they were (by accident), would AEB prevent a collision?

 

[Pahaska]

I don't know about trees, but it seems to ignore traffic signs very successfully, even on our curvy and hilly road.

 

[Alwaysforward]

Traffic signs & trees are not in my intended path, but if they were (by accident), would AEB prevent a collision?

No it will not. Here is the Disclosure from Hyundai regarding the AEB system. See text in red below:

The Genesis Autonomous Emergency Braking System is designed to assist drivers to avoid, or reduce the severity of, collisions with cars that have slowed or stopped in front of them. It is a supplemental assist, and does not replace the need for extreme care and attention by the driver. Autonomous Emergency Breaking may not stop the vehicle completely and will not avoid all collisions.

Autonomous Emergency Braking uses cameras and distance radar to evaluate a slowing or stopped vehicle in front of your vehicle. It must be able to recognize the rear end of a car in front of your in order to respond. Autonomous Emergency Braking will only sense cars directly in front of the owner's vehicle and traveling the same direction.

• It will not sense all cars, depending on the shape size, distance, angle and brake light configuration of the car in front. It may not sense a rapidly slowing vehicle that is positioned too closely in front of yours
• It will not sense cars placed at angles or entering from the side of the path of travel.
• It will not detect any objects other than cars, including but not limited to walls, trees, bridges, guard rails, road signs, bicycles, motorcycles, boxes, animals, pedestrians or unusually shaped vehicles.
• Autonomous Emergency Braking will experience limited visibility and may not work on winding roads or hilly roads, and during weather conditions such as rain, snow, and fog.
• For Autonomous Emergency Braking to work, vehicle operators must ensure the radar (center of grille) and camera (upper windshield) surfaces are clean and clear of dirt or debris, ice/snow, stickers, labels, markings or any issue that affects forward "vision".

Autonomous Emergency Braking is automatically disabled below 5mph. From 5-50mph, if a slowed or stopped vehicle in front of it is detected, it will apply full braking and may stop the vehicle if enough distance is available. From 50-112 mph, if a slowed or stopped vehicle in front of it is detected, it will apply partial braking to help avoid or reduce the severity of accidents. It is up to the driver to always carefully manage speed and direction of travel to suit present conditions. You should never rely on the Autonomous Emergency Braking enhancement to drive or stop the vehicle for you

 

[harwax]

No it will not. Here is the Disclosure from Hyundai regarding the AEB system. See text in red below:

The Genesis Autonomous Emergency Braking System is designed to assist drivers to avoid, or reduce the severity of, collisions with cars that have slowed or stopped in front of them. It is a supplemental assist, and does not replace the need for extreme care and attention by the driver. Autonomous Emergency Breaking may not stop the vehicle completely and will not avoid all collisions.

Autonomous Emergency Braking uses cameras and distance radar to evaluate a slowing or stopped vehicle in front of your vehicle. It must be able to recognize the rear end of a car in front of your in order to respond. Autonomous Emergency Braking will only sense cars directly in front of the owner's vehicle and traveling the same direction.

• It will not sense all cars, depending on the shape size, distance, angle and brake light configuration of the car in front. It may not sense a rapidly slowing vehicle that is positioned too closely in front of yours
• It will not sense cars placed at angles or entering from the side of the path of travel.
• It will not detect any objects other than cars, including but not limited to walls, trees, bridges, guard rails, road signs, bicycles, motorcycles, boxes, animals, pedestrians or unusually shaped vehicles.
• Autonomous Emergency Braking will experience limited visibility and may not work on winding roads or hilly roads, and during weather conditions such as rain, snow, and fog.
• For Autonomous Emergency Braking to work, vehicle operators must ensure the radar (center of grille) and camera (upper windshield) surfaces are clean and clear of dirt or debris, ice/snow, stickers, labels, markings or any issue that affects forward "vision".

Autonomous Emergency Braking is automatically disabled below 5mph. From 5-50mph, if a slowed or stopped vehicle in front of it is detected, it will apply full braking and may stop the vehicle if enough distance is available. From 50-112 mph, if a slowed or stopped vehicle in front of it is detected, it will apply partial braking to help avoid or reduce the severity of accidents. It is up to the driver to always carefully manage speed and direction of travel to suit present conditions. You should never rely on the Autonomous Emergency Braking enhancement to drive or stop the vehicle for you

Thank you for your detailed explaination in clarifying to me, the the limitations on AEP

 

[Ernie3647]

That’s not actually true. This has been discussed in in a prior thread and Alwaysforward should remember responding to my post. This statement from Hyundai is done (rightfully so) for legal purposes and safety considerations. There have been past reviews where engineers have been consulted on this same topic. Their response was the system was engineered and able to discern other objects like pedestrians but not to be classified as such. I personally can tell you it can. Last week a dog stepped out between cars on me going about 30 and the car did hit the brakes before I could have. That said I do think it’s proper for Hyundai to classify it that way.

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[Alwaysforward]

I looked for that post Ernie3647 but could not find it. Better to be safe and simply repost what Hyundai has noted on their site.

 

[Ernie3647]

I looked for that post Ernie3647 but could not find it. Better to be safe and simply repost what Hyundai has noted on their site.

Agreed.