Disappointing TSS 3.0 on JC250

[Esquire]

Since I'm a total idiot when it comes to deciphering acronyms, I wish there was an automatic glossary that would pop up somewhere within postings so stupid non-gearheads like myself can keep up with the conversations.

Anyway, I have no idea what the acronyms in this thread stand for:
ADAS
TSS
DRCC
TSS-P
L3
AD
LTA
AHB
DRCC/PDA
TSS 3.0
FSD
DMC

(Feel free to beat me up over this comment. I'm so stupid that I won't even notice it. )

I'm the same way with acronyms.

I just figured out all of the texts I receive with "FU" doesn't mean Follow Up.....

 

[Nick]

AHB

For the AHP, I suspect you just have a bug in your system because it's been flawless for me although I have not used it for an extended time which might cause it to act like yours. Probably the most I've done with it is about a half hour.

 

[LCOceans]

I need acronym help guide to follow but I am sure there are interesting observations.

 

[tysondav]

This is what Toyota says in their TSS 3.0 material: "is designed to activelyt provide steering inputs that helps keep the vehicle centered in its lane". However the way it actually works is to have the vehicle bouncing within the lane between two lines. The module is typically located right behind the windshield where your camera is.

This is why I always feel the car is about the get outside of the lane when TSS 3.0 only correct in the last minute. What the system is supposed to do is to provide a small but very frequent correction to my car's location. At least that is what Comma 3 did on my 17' Prius Prime. Apparently it did not happen. If I have to take a guess it only detects lanes at very low rate and correction always comes late with bigger input torque to the steering. That must be why jerks happens. If you observe from the side the car will drive like a drunk driver with TSS 3.0.

I’ve only had my LC for two weeks, but I immediately drove it from KY to FL and have put 2500 miles on it. On the interstate, I noticed if I was in the middle lane, exactly what you described happened. The car would bounce around between the lines like a bumper car. It worried me at interstate speeds. However, if I was in the far right or far left lane, it happened less frequently. I thought it was probably because those lanes had solid lines on one side instead of breaks in each lane line like the middle lanes had. No idea if my instincts are correct.

 

[Paul2660]

Lane assist on 2025 Landcruiser for me so far is excellent. I actually expected the previously mentioned bouncing as my 2017 XC90 Volvo does this to some degree depending on the road. So far on Interstate travel (I-40 Arkansas) and two lane Hwy thought the state, the truck stays centered and can actually stay in the lane on hard curves unlike my Volvo which will shift.
Broken white (like on exit lanes) does not interfere with the Toyota, but will cause the XC90 to attempt to recenter. So again improvement.

Understanding the MIDI display and all of the various settings and configurations that it controls are what has thrown me.
Sure the manual describes them but IMO not as clear as needed, and video's on YouTube seem to be the best help. But Kudo's to Toyota for still printing a manual and not forcing you to the web.

Paul C

 

[Marinna]

I’ve only had my LC for two weeks, but I immediately drove it from KY to FL and have put 2500 miles on it. On the interstate, I noticed if I was in the middle lane, exactly what you described happened. The car would bounce around between the lines like a bumper car. It worried me at interstate speeds. However, if I was in the far right or far left lane, it happened less frequently. I thought it was probably because those lanes had solid lines on one side instead of breaks in each lane line like the middle lanes had. No idea if my instincts are correct.

On my Comma 3 running on Prius Prime since the ADAS box comes with a display I can actually see how the algorithm identify the lane and road. So on highway when there is an exit, the road is widen on the right side and the car will actually put the vehicle in the middle, until it sees enough divide and randomly select the lane to center itself again.

This I did not see happening on TSS 3.0. Since they don’t use cloud HD map they couldn’t possibly know where the lane is. So the reason it didn’t happen is either the algorithm is making some assumption (aka educated guess) or it did not detects the lane like how other similar system did, that is part of the reasons I had hard time to trust it since I do not know how the computer thinks