GM Volt Forum banner

1 - 10 of 10 Posts

·
Registered
Joined
·
6,661 Posts
Discussion Starter #1
I had to run some errands this morning and the FOG would make London proud. So I used this opportunity to see how well the LKA would read and react with greatly reduced visibility.


I wanted to test out the ACC but by the time I could pick out a vehicle to lock onto they either disappeared or were turning.

All in al I was pretty impressed with how well the system functioned in thick/heavy fog. I think it only lost its lock once in a 5 mile section of the road I was on.

Just thought you'd be interested.
 

·
Premium Member
Joined
·
14,156 Posts
No sure if you're talking about LKA or ACC. In heavy ground fog the ACC seemed to work OK, meaning there wasn't a message that it had stopped. Luckily traffic was super light and we didn't have the opportunity to test it (visibility was down to feet, a car into the ditch on the side of the road, quite dangerous). I was hoping the ACC would work, and it made me feel better, but I can't say it worked. ;) No idea about LKA. Did that work for you?

What I really wanted was the new infrared systems. That seems like it would be a huge help in some situations, fog being one of them.
 

·
Registered
Joined
·
6,661 Posts
Discussion Starter #3
No sure if you're talking about LKA or ACC.
LKA. LKA seemed to work pretty good considering the conditions as you can see from my windshield view.
 

·
Registered
Joined
·
464 Posts
Thanks Bazinga, that is good to know. I generally don't use it because it's not like "Autopilot" on a Tesla, keeping the car centered in the lane and I find it useful. But in heavy fog I might now thing to throw it on as it would essentially be like throwing virtual lane markers in the road since it would be hard for our eyes to see the lane markers. Many roads also have those dots that the tires hit and let you know as well, might as well use LKA as another backup.
 

·
Registered
Joined
·
1,109 Posts
Although no LKA on a gen 1, the LDW certainly does well enough to alert me if I get too close to one side or the other during fog. However, if the fog is thick enough it's sometimes difficult to maintain a high enough speed to keep it active.
 

·
Registered
Joined
·
6,661 Posts
Discussion Starter #7
It is not close to AP but as an additional safety feature it's a great tool to have. I just wish I could given ACA-FAB a check ride. In reduced visibility situations that could be a life saver.
 

·
Registered
Joined
·
1,181 Posts
I thought the LKA sensors looked for the lane line markers? So, from their lower view angle, they can see better than the driver, which makes sense. Good to know.
 

·
Registered
Joined
·
1,109 Posts
In the Gen 1 it uses the windshield camera which gives it a slightly higher view angle since it's nearer the roofline. I thought the Gen 2 used a camera as well, or am I mistaken?
 

·
Registered
Joined
·
135 Posts
The Use Case Scenario (running errands) you're describing doesn't properly set LKA expectations.

For most urbanites, for which one could argue is the Volt's strongest target market (Urban setting), the average trip speed is pretty slow. IMO it seems intuitive GM has targeted the LKA feature towards highway driving where you risk drowsy driving. The LKA operative speeds are between 37-112 MPH. So below 37 MPH - nadda LKA.

Which is unfortunate. I personally would like the LKA operative range to be something like 5-75 MPH. This range is more conducive to the use cases you're describing, errands, which I too agree would be nice, but it's not what LKA is designed to do.

Hey GM - can we get an update to enable LKA at speeds greater than 5 MPH? For LKA to only support highway driving when the Volt is primarily an urban vehicle is just wrong.
 
1 - 10 of 10 Posts
Top