04-04-2017, 08:17 AM | #23 |
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04-04-2017, 08:33 AM | #24 | |
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Insurance Institute of Highway Safety reports in a low speed 12 mph test the system reduced the impact speed by 8 mph and in a 25 mph test impact speed was reduced by 7 mph. The slowing by this collision mitigation system and collision warning may afford the driver additional time to brake prior to impact, which may help the driver to avoid the collision entirely. http://www.iihs.org/iihs/ratings/veh.../x3-4-door-suv [Click "With Frontal Collision Warning with City Collision Mitigation only" in side bar to see details] Optional Driving Assistance Plus with ACC Stop & Go offers even more collision protection according to the IIHS tests but again may not stop the vehicle completely. In the IIHS 12 mph test the ACC system reduced the impact speed by 11 mph and in the 25 mph test reduced impact speed by 24 mph. http://www.iihs.org/iihs/ratings/veh.../x3-4-door-suv [Click "Front crash prevention" in side bar to see details] Last edited by MichiganMike; 04-04-2017 at 08:39 AM.. |
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04-04-2017, 03:21 PM | #25 | |
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"The Driving Assistant Plus feature (only available with Steptronic transmission) includes not only approach control warning and Lane Departure Warning, but also Active Cruise Control with Stop&Go function. This provides assistance when driving on motorways in both critical and stable traffic situations. This option is only available in conjunction with the Navigation system Business or Professional. The approach control warning responds in stages. Depending on whether a vehicle ahead brakes suddenly or a stationary object is detected, the reaction ranges from a visual signal to active braking and even a complete standstill. Should the car begin to change lanes unintentionally, the Lane Departure Warning quickly provides a warning by means of vibrations in the steering wheel." To me, the above clause sounds like it will make a complete stop. Not sure it is my pre-assumption that make me felt this way, that I believe the sales person in BMW did told me the assistance plus package will make a full stop for frontal collision avoidance. Honestly I think BMW dealership isn't doing a good job in giving the right information to BMW owners. We have found at least one instance that what they told us during the briefing when we pick up the car is inaccurate. having to put the car to repair shop in less than 1 year of ownership sucks, hopefully everything will come back as new after the repair, and my wife will continue to enjoy her BMW. Also, will this mark a record in the vehicle history of having a collision and drives downs it resale value in future? |
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04-04-2017, 03:25 PM | #26 | |
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http://www.bmw.com/com/en/newvehicle...stant.html#t=l "The Driving Assistant Plus feature (only available with Steptronic transmission) includes not only approach control warning and Lane Departure Warning, but also Active Cruise Control with Stop&Go function. This provides assistance when driving on motorways in both critical and stable traffic situations. This option is only available in conjunction with the Navigation system Business or Professional. The approach control warning responds in stages. Depending on whether a vehicle ahead brakes suddenly or a stationary object is detected, the reaction ranges from a visual signal to active braking and even a complete standstill. Should the car begin to change lanes unintentionally, the Lane Departure Warning quickly provides a warning by means of vibrations in the steering wheel." Isnt that says that it will make complete stop? need a lawyer here |
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04-04-2017, 07:13 PM | #27 | |
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"The automatic braking intervention is done with limited force and duration." "The system does not serve as a substitute for the driver's personal judgment of the traffic situation. Be aware of the traffic situation and the vehicle's surroundings at all times, otherwise accidents are still possible despite all warnings." "The displays and warnings of the system do not relieve the driver of the responsibility to adapt his or her driving speed and style to the traffic conditions." "Due to system limitations, warnings may be not issued at all, or may be issued late or improperly. Therefore, always be alert and ready to intervene; otherwise, there is the risk of an accident." "The driver must intervene actively when there is an acute warning. If necessary, the driver is assisted by a minor automatic braking intervention in a possible risk of collision." "The system's detection potential is limited. Thus a warning might not be issued or be issued late. E. g. the following situations may not be detected: ▷ Slow moving vehicles when you approach them at high speed. ▷ Vehicles that suddenly swerve in front of you, or sharply decelerating vehicles. ▷ Vehicles with an unusual rear appearance. ▷ Two-wheeled vehicles ahead of you." Last edited by MichiganMike; 04-05-2017 at 07:21 AM.. |
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04-05-2017, 11:03 AM | #28 | |
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nonetheless, i am still looking forward for fully autonomous car that is coming very soon. i am a believer in self driving, tech can definitely avoid most human caused collision. |
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04-06-2017, 01:38 PM | #29 | |
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Do you know what her current speed was approx.? I have found at low speeds, it doesn't work (unless ACC is on). It definitely works at 20mph+ but unsure below that
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04-07-2017, 11:30 AM | #30 |
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i don't know the speed but most likely still at low speed as she was just starting to make a right turn from a stop light.
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04-10-2017, 11:23 PM | #31 |
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Hey folks - my Driver Assistance Plus - Front-End Collision Warning went off this weekend and I happened to have my dashcam on, so I posted a video of it in case anyone was interested. Not sure if it helps anyone get a better idea of how it works. I tried to describe it in the description of the video.
Excuse the music.. but you can still hear the chirping by the system. The braking has already started to happen by the time the chirping is going on. The red car icon is also flashing on your dash/HUD as well. If I wasn't approaching the car at that high of a speed, then the red car icon would have just gone on solid and then only blink and chirp if the car thought I was going to collide or if it thought it was imminent. Of course when I look at the video, it seems a lot slower and further away than in real life. Haha! I have my warning system set at High, meaning early detection. All I will say is that this happened because I was distracted by that silver SUV that I pass on the right before this happened. https://www.youtube.com/watch?v=JZfKf4z6nLM |
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11-19-2017, 12:19 PM | #32 | |
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front end collision
My experience was different. I was perpendicular parking to a curb when I shifting the car. Suddenly it jumped the curb and hit a flagstone wall. The warning lights and sounds started but the car failed to stop. A BMW engineer said the car was functioning normally after a full test.
This makes me feel unsafe for the future. Quote:
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11-27-2017, 03:38 PM | #34 | |
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Also, it's not proven that it will stop you to a halt. It starts the breaking process for you so by the time you hit the breaks, it's already started. |
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