RDM vs LKAS

[jdonalds]

Our roads are generally well lined so the LKAS stays locked on 90% of the time in clear weather. Actually I'm surprised how well it works in the rain.
When on straight roads the LKAS does a pretty good job, and gratefully we travel on mostly straight roads when out of tow.

I've often thought that I too am the assistant but only on curves where the system just doesn't have enough torque to steer.

 

[MPower]

. It's not smart at all about passing by an offramp and doesn't know what to do.

Actually, it seems to know exactly what to do, literally follow its orders to keep the car centered between the lines. As the side line starts to go off to the right, it tries to center the car right in the middle between the lane divider and the sideline, which is not what you want, as soon as it spots the new side line pat the exit, it shapes right up and drives right.

 

[Randy Stegbauer]

Turn the follow distance to the minimum so that it can't do the fall-back-catch-up-fall-back-catch-up thing.

Is there a guide or advice on the best trailing distances for different speeds and traffic conditions?

Here's my rationalization:

1. For slow speed follow when in bumper to bumper traffic, I keep it at the minimum distance. I think this is safe and prevents other cars from sneaking in and causing my car to brake suddenly. I find this is uncomfortable for passengers since it brakes and accelerates aggresively, so I'll tend not to use it when other people are in the car.
2. Slightly congested highway speeds, I use a medium distance. However from time to time, I feel that it brakes too much and slows to an unsafe speed and then takes too long to accelerate to the speed of the surrounding traffic.
3. For interstate speeds, I use the maximum so that there is the most distance between cars, so that I have the most distance to react if something goes wrong.

I use LKAS, but only for "assistance" and not self-driving. I believe that would be a mistake to trust it too much. I believe that the LKAS and ACC will help *minimize* an accident, but not *prevent* them. I love the small shake that I get when I get too close to the line.

 

[AlanSqB]

I've tried openpilot ( https://comma.ai ) on mines and it seems to do a better job of ACC and LKAS. Keep in mind this is alpha/beta quality aftermarket system. Heres a similar installation video

Are they supporting Clarity now or does it just think it’s an Accord? I looked into this a few months ago but didn’t they didn’t have anybody working on code for Clarity at the time.

 

[LegoZ]

Actually, it seems to know exactly what to do, literally follow its orders to keep the car centered between the lines. As the side line starts to go off to the right, it tries to center the car right in the middle between the lane divider and the sideline, which is not what you want, as soon as it spots the new side line pat the exit, it shapes right up and drives right.

Dotted lines through the exit lane prevent this. It is very unnerving the first time it twitches you toward the exit at 75mph though...
in this image the right exit lane wouldn’t pose an issue for the system, the left exit lane would and the car would try to center itself in the new lane until I saw the new line.

 

[insightman]

I love the small shake that I get when I get too close to the line.

The steering-wheel wiggle is SO much better than irritating beeping. Well-done, Honda!

 

[MPower]

The steering-wheel wiggle is SO much better than irritating beeping. Well-done, Honda!

I agree. There are so many devices around squeaking and beeping that I almost tune them out and at best take a second or two to figure out what is causing the noise. With the steering-wheel wiggle, I know immediately what the problem is and my passengers never have to worry if they weren't paying attention.

 

[Ceetee]

Are they supporting Clarity now or does it just think it’s an Accord? I looked into this a few months ago but didn’t they didn’t have anybody working on code for Clarity at the time.

No official support, but there is a pull request and its support by some community members. I'm currently using it and I like it so far.