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Guest Message by DevFuse

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Register your Fusion Hybrid at the official Ford authorized registry here.


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Lane Keep Assist


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36 replies to this topic

#21 OFFLINE   hybridbear

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Posted 05 December 2013 - 04:10 PM

What will it do if you're having to change lanes quickly in an emergency maneuver without time to signal? I imagine it wouldn't be hard in that situation to overpower it.

 

Today is super windy, cross winds of about 20 MPH with 30+ MPH gusts. LKA did a great job of combatting the gusts and keeping me between the lines. Although, after awhile it recommended that I stop and rest. I guess the wandering because of the wind was enough to make it think I was sleepy.

 

I've found that on light colored concrete roads with white stripes it has trouble picking out the lines on a sunny day. On roads paved with tar it works much better. Many of our freeways are concrete and the new style concrete used the last few years is almost as white as snow. This makes the white stripes hard to see with human eyes on sunny days, little wonder the car struggles to see them.


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#22 OFFLINE   DeeCee

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Posted 06 December 2013 - 12:34 AM

Its not hard at all to over power it.

 

Yes it does give you the "time out for a rest message" if you wander a bit, either unintentionally or from cross winds.

 

About the only time I use it anymore is while traveling on the interstate highways.


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#23 OFFLINE   jsolan

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Posted 06 December 2013 - 09:02 AM

No it's not hard to overpower in an evasive maneuver, but it will give you quite a scare in less obvious situations.

I had a situation where there was construction and lanes shifted, but they hadn't completely covered the old yellow line.  As I gently shifted lanes to the left, my car thought the road kept going straight and attempted to guide me into the newly setup concrete barrier.  The rumble was enough to frighten me and I quickly hit the turn signal instead of overpowering it.

 

I now disable it anytime I see construction.


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#24 OFFLINE   Waldo

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Posted 06 December 2013 - 01:50 PM

I was once driving on one of the below grade freeways on a sunny day in late afternoon.  The sun was at just an angle that the shadow of the railing along the top of the freeway left a gap of sunlight about 3 inches across, about 12 inches to the left of the lane markings.  Since the sunlight strip was actually brighter than the real lane markings, the system was picking that up and giving me a hard time.

 

I don't know if it does, but the system certainly has the ability to determine if you input a fast enough or large enough steering wheel input (like an emergency maneuver) that it could disable itself before it tried to counter your input.  It already knows the steering wheel angle and the input torque.


Edited by Waldo, 06 December 2013 - 01:50 PM.

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#25 OFFLINE   hybridbear

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Posted 06 December 2013 - 05:09 PM

No it's not hard to overpower in an evasive maneuver, but it will give you quite a scare in less obvious situations.

I had a situation where there was construction and lanes shifted, but they hadn't completely covered the old yellow line.  As I gently shifted lanes to the left, my car thought the road kept going straight and attempted to guide me into the newly setup concrete barrier.  The rumble was enough to frighten me and I quickly hit the turn signal instead of overpowering it.

 

I now disable it anytime I see construction.

Great tip! I will keep this in mind!


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#26 OFFLINE   acdii

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Posted 16 December 2013 - 10:27 AM

It will try to correct on a light move of the wheel, but a firm move disables it. 


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#27 OFFLINE   hybridbear

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Posted 06 January 2014 - 05:31 PM

LKA doesn't do a good job of picking up white lines on our salt-covered roads right now if driving when the sun is shining from a low angle either early in the day or in the afternoon. When the sun is high in the sky or after dark LKA picks up white lines just fine even on salt-covered roads.


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#28 OFFLINE   hybridbear

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Posted 08 February 2014 - 11:56 AM

I'm so used to having LKA in the FFH when driving on the highway that when I drive the Prius I tend to have a really hard time staying between the lines lol
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#29 OFFLINE   acdii

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Posted 08 February 2014 - 10:09 PM

I am beginning to think my LKA is kicking in sometimes. I can be driving along and it feels like the wheel is pulling to the right.  Pretty strange feeling and quite random. I haven't used it in months.


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#30 OFFLINE   DeeCee

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Posted 09 February 2014 - 07:38 PM

I have experienced this too. Get surprised when the car suddenly steers on its own and when I look at the left screen it shows the LKA turned on. Although I had not intentionally turned it on, I feel that maybe while using the turn signal I might accidentally engage the LKA button on the turn signal lever.


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#31 OFFLINE   acdii

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Posted 09 February 2014 - 10:26 PM

That was my first instinct to see if I turned it on, but not the case on mine.  Not sure yet if its the road or the car, seems to happen at random, some days on the same road, same lane it either does it or it doesn't.  Not going to do anything yet until I can confirm the road or car as the cause.


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#32 OFFLINE   SteveB_TX

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Posted 10 February 2014 - 09:44 AM

Sometimes I notice the LKA kicking in on me.  I know I didn't turn it on on purpose.  I guess I accidentally hit the little button on the stalk when using the signals.  :ohsnap:


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#33 OFFLINE   hybridbear

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Posted 23 August 2014 - 05:23 PM

Back before we got the Focus Electric when we were thinking about it I requested brochures in both my name & my wife's name to try to get a $750 private cash coupon. The brochures have finally started coming over the last couple days. Today the Fusion Hybrid/Energi brochure arrived. It is for the 2015 Fusion and shows the new Titanium rim on a number of the Fusions in the pictures. The more curious thing, though, is the paragraph describing LKA. It is not called LKA in this brochure, it is called "Lane-Keeping System". It says that the system senses when you wander and will alert you "through vibrations in the steering wheel to prompt you to steer back to center." The fine print for the asterisk reads: "Lane-Keeping System does not control steering." Is this just legal mumbo-jumbo to protect them from someone suing after a crash because they thought they could drive with no hands, or did they really change the LKA system to no longer adjust the steering for you? What happens for owners of 2014 FFHs with LKA? Will you car steer for you? On relatively straight roads in our car I can let my hands off the steering wheel for miles and the car will keep me between the lines. When it senses that my hands aren't on the wheel it beeps at me to put my hands on the wheel, but the car will steer itself through gentle curves in the road without any input from me.

 

I hope that Ford didn't take this feature away. The fact that the FFH not only warned you, but also steered you back into the lane, was something that differentiated the Ford system from their competitors. Hyundai is the only other company I have heard advertise a system that will steer you back into your lane. Toyota, Honda, GM, Chrysler, etc all have passive systems that only beep at you if you wander.


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#34 OFFLINE   murphy

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Posted 23 August 2014 - 06:56 PM

My car doesn't beep at me if I take my hands off of the wheel.  It states in stern english "Put you hands back on the wheel" or something to that effect.  It's been a long time since I did it.



#35 OFFLINE   hybridbear

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Posted 23 August 2014 - 07:46 PM

My car doesn't beep at me if I take my hands off of the wheel.  It states in stern english "Put you hands back on the wheel" or something to that effect.  It's been a long time since I did it.

That's what I meant. I believe our car makes a chime noise when that message is displayed.


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#36 OFFLINE   acdii

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Posted 23 August 2014 - 08:00 PM

My MKT yells at me even though my hands are on the wheel. The car tracks so nicely that I rarely need to make any inputs to the steering, so it thinks my hands are not on the wheel.

 

BTW, the name changed,  but the system is the same.

 

 

The Lane-Keeping System* includes both the lane-keeping alert and the lane-keeping aid.** A camera mounted behind the windshield watches road lane markings to determine vehicle position and detect a lane departure. The system can operate during the day or night. Lane-keeping alert warns you through a series of steering wheel vibrations, which mimic a rumble strip, should the system detect an unintentional lane departure. Lane-keeping aid actively applies steering torque, which alerts you to direct your vehicle back into the target lane should the system detect an unintended lane departure.


  • *Lane-Keeping System does not control steering. The driver should always be in control and responsible for safe operation of the vehicle. **Driver assist features are supplemental and do not replace the driver’s judgment.

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#37 OFFLINE   Iwejun

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Posted 11 June 2015 - 01:07 PM

I think that's why they filmed that Fusion driving off of the cliff. He was using Lane Assist on a curve. ;-)

 

Have you ever read  the text under the car while it's going off the cliff?

 

Warning: Cars cannot fly do not attempt.      Really? Are we now that dumb?






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