Speed limit assist
Thread Starter
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Joined: Feb 2017
Posts: 196
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From: Oregon, USA
BMW X3, Mercedes GLC300 (EDP)
Speed limit assist
On another thread I asked if anyone knew how the current speed limit was detected and displayed on the Navigation Map. There was some questions whether the speed limit information come from a data base or was the system using some type of speed limit sign recognition? Turns out according to this video it may be using a combination of both:
This video is for the GLA and is a couple of years old, but the video demo is similar (but not exactly) to how the display of the speed limit functioned on my GLC 300 during my ED trip. I did not display the speed limit on the dash display, mainly because I did not know that was an option. But the speed limit was displayed on the Nav screen, matching the current limit on any signs that were passed.
My next question is, this video is for European Navigation, does anyone know if the speed limit assist functions the same for US Nav and is it as accurate?
This video is for the GLA and is a couple of years old, but the video demo is similar (but not exactly) to how the display of the speed limit functioned on my GLC 300 during my ED trip. I did not display the speed limit on the dash display, mainly because I did not know that was an option. But the speed limit was displayed on the Nav screen, matching the current limit on any signs that were passed.
My next question is, this video is for European Navigation, does anyone know if the speed limit assist functions the same for US Nav and is it as accurate?
Super Member
Joined: May 2017
Posts: 632
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From: Trumbull, CT USA
Mercedes-Ben GLC300 4Matic
On another thread I asked if anyone knew how the current speed limit was detected and displayed on the Navigation Map. There was some questions whether the speed limit information come from a data base or was the system using some type of speed limit sign recognition? Turns out according to this video it may be using a combination of both:
GLA Speed Limit Assist
This video is for the GLA and is a couple of years old, but the video demo is similar (but not exactly) to how the display of the speed limit functioned on my GLC 300 during my ED trip. I did not display the speed limit on the dash display, mainly because I did not know that was an option. But the speed limit was displayed on the Nav screen, matching the current limit on any signs that were passed.
My next question is, this video is for European Navigation, does anyone know if the speed limit assist functions the same for US Nav and is it as accurate?
GLA Speed Limit Assist
This video is for the GLA and is a couple of years old, but the video demo is similar (but not exactly) to how the display of the speed limit functioned on my GLC 300 during my ED trip. I did not display the speed limit on the dash display, mainly because I did not know that was an option. But the speed limit was displayed on the Nav screen, matching the current limit on any signs that were passed.
My next question is, this video is for European Navigation, does anyone know if the speed limit assist functions the same for US Nav and is it as accurate?
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Joined: Jun 2017
Posts: 95
Likes: 11
GLC43
The speed limit information is kept in the navigation file. I ordered the driver assistance package for my
MY18 GLC43 and it wouldn't accept it until I added the multimedia package which has the navigation package containing the speed limits. If you've ever had a Garmin or Tomtom you would also see the speed limit displayed on it.
So it's as good as your last map update and if a changed speed limit has been added to the data base.
MY18 GLC43 and it wouldn't accept it until I added the multimedia package which has the navigation package containing the speed limits. If you've ever had a Garmin or Tomtom you would also see the speed limit displayed on it.
So it's as good as your last map update and if a changed speed limit has been added to the data base.
Thread Starter
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Joined: Feb 2017
Posts: 196
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From: Oregon, USA
BMW X3, Mercedes GLC300 (EDP)
The speed limit information is kept in the navigation file. I ordered the driver assistance package for my
MY18 GLC43 and it wouldn't accept it until I added the multimedia package which has the navigation package containing the speed limits. If you've ever had a Garmin or Tomtom you would also see the speed limit displayed on it.
So it's as good as your last map update and if a changed speed limit has been added to the data base.
MY18 GLC43 and it wouldn't accept it until I added the multimedia package which has the navigation package containing the speed limits. If you've ever had a Garmin or Tomtom you would also see the speed limit displayed on it.
So it's as good as your last map update and if a changed speed limit has been added to the data base.
Traffic Sign Assist displays the maximum speed permitted to the driver in the instrument cluster. The data and general traffic regulations stored in the navigation system are used to determine the current speed limit.
Traffic Sign Assist is a map-based system, and for this reason, traffic signs put up temporarily (e.g. near roadworks) are not detected. There is also no display for changing traffic signs.
So unlike the Speed Limit Assist described in the video and used by European Navigation software, Traffic Sign Assist does not use the camera to recognize speed limit signs and adjust the display accordingly. This is disappointing because I really liked the real time speed limit adjustment (even for roadwork zones) during my ED trip. Traffic Sign Assist is a map-based system, and for this reason, traffic signs put up temporarily (e.g. near roadworks) are not detected. There is also no display for changing traffic signs.
I especially liked it when the display changed to the unlimited speed limit sign
(i.e. the circle with the diagonal lines, as shown in the video).I wonder if speed limit assist will be added to the North American navigation software in some future update?
.
Last edited by ted_jane; Jul 12, 2017 at 04:17 PM.
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From: Winston-Salem, NC USA
2019 MB C300 4Matic (me); 2021 BMW 530i xDrive (husband)
I was disappointed to learn that the speed limit assist is just based off geo-tagging or files in the nav system, and pretty much figured that out when some speed limits on local highways were increased but my speed limit assist did not recognise it (and still don't). Eager to get my nav system updated.
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Joined: Mar 2017
Posts: 417
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From: Virginia
'17 BMW X3, '18 GLC300 4Matic
I was disappointed to learn that the speed limit assist is just based off geo-tagging or files in the nav system, and pretty much figured that out when some speed limits on local highways were increased but my speed limit assist did not recognise it (and still don't). Eager to get my nav system updated.
Just wondering since GSO mentioned it.
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Joined: Feb 2017
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From: Oregon, USA
BMW X3, Mercedes GLC300 (EDP)
I am not sure how cars ordered in the US and first delivered here are handled, but for EDP cars, the North American software/maps are loaded at the port of entry by the VPC. I hope the VPC loads the latest version, but I don't know for sure.
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From: Virginia
'17 BMW X3, '18 GLC300 4Matic
I hope that's true of inbound US cars as well. It would only make sense that the newest version be installed on all cars at the VPC.
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Thread Starter
Member
Joined: Feb 2017
Posts: 196
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From: Oregon, USA
BMW X3, Mercedes GLC300 (EDP)
Interesting about the EDP cars getting updated at the US VPC. Sounds like maybe they install a European version when those are built and then update it to the US version.
I hope that's true of inbound US cars as well. It would only make sense that the newest version be installed on all cars at the VPC.
I hope that's true of inbound US cars as well. It would only make sense that the newest version be installed on all cars at the VPC.
When an EDP car arrives at port in the US, the European software/maps must be replaced with North American software/maps.
Thread Starter
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Joined: Feb 2017
Posts: 196
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From: Oregon, USA
BMW X3, Mercedes GLC300 (EDP)
Possible good news for MY18 GLC owners. I was looking through the GLC MY18 DOG, when I saw this line under the Premium Driver Assist Package:
- 513 Speed Limit Assist
I went back to the last DOG I have for MY17 (dated 11/7/16) to see if code 513 was there, it is not there.
So MY18 GLC owners get the full Speed Limit Assist with speed limit sign recognition as shown in the video at the top of this thread?
May be a MY18 year owner on this forum will be nice enough to test this out when they receive their car, hopefully within the next few days?
- 513 Speed Limit Assist
I went back to the last DOG I have for MY17 (dated 11/7/16) to see if code 513 was there, it is not there.
So MY18 GLC owners get the full Speed Limit Assist with speed limit sign recognition as shown in the video at the top of this thread?
May be a MY18 year owner on this forum will be nice enough to test this out when they receive their car, hopefully within the next few days?
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Joined: Apr 2017
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2018 GLC Coupe (on order)
Possible good news for MY18 GLC owners. I was looking through the GLC MY18 DOG, when I saw this line under the Premium Driver Assist Package:
- 513 Speed Limit Assist
I went back to the last DOG I have for MY17 (dated 11/7/16) to see if code 513 was there, it is not there.
So MY18 GLC owners get the full Speed Limit Assist with speed limit sign recognition as shown in the video at the top of this thread?
May be a MY18 year owner on this forum will be nice enough to test this out when they receive their car, hopefully within the next few days?
- 513 Speed Limit Assist
I went back to the last DOG I have for MY17 (dated 11/7/16) to see if code 513 was there, it is not there.
So MY18 GLC owners get the full Speed Limit Assist with speed limit sign recognition as shown in the video at the top of this thread?
May be a MY18 year owner on this forum will be nice enough to test this out when they receive their car, hopefully within the next few days?
Super Member
Joined: May 2017
Posts: 632
Likes: 57
From: Trumbull, CT USA
Mercedes-Ben GLC300 4Matic
Possible good news for MY18 GLC owners. I was looking through the GLC MY18 DOG, when I saw this line under the Premium Driver Assist Package:
- 513 Speed Limit Assist
I went back to the last DOG I have for MY17 (dated 11/7/16) to see if code 513 was there, it is not there.
So MY18 GLC owners get the full Speed Limit Assist with speed limit sign recognition as shown in the video at the top of this thread?
May be a MY18 year owner on this forum will be nice enough to test this out when they receive their car, hopefully within the next few days?
- 513 Speed Limit Assist
I went back to the last DOG I have for MY17 (dated 11/7/16) to see if code 513 was there, it is not there.
So MY18 GLC owners get the full Speed Limit Assist with speed limit sign recognition as shown in the video at the top of this thread?
May be a MY18 year owner on this forum will be nice enough to test this out when they receive their car, hopefully within the next few days?
Last edited by ajmtbm; Jul 14, 2017 at 06:36 PM.
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2022 E350 Diamond White Metallic, 2016 GLC300 Dakota Brown Metallic
Originally Posted by ajmtbm
In 2017, Speed Limit Assist is shown as part of the P3 package. The mbusa website specifically says the info is from the nav database. not sure why Europe would be different than US.
Super Member
Joined: May 2017
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From: Trumbull, CT USA
Mercedes-Ben GLC300 4Matic
i found some information online published by Daimler that the system is designed to scan for round signs - like the speed limit signs in Europe. It noted that if it sees a square sign it scans the database for the info instead. so, basically, the system was designed for use in Europe. The info was from 2013
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Joined: Mar 2017
Posts: 417
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From: Virginia
'17 BMW X3, '18 GLC300 4Matic
Agree with ajmbm. For MY17, SLA is coded 513 and is part of the P3 package.
This is the wording he made reference to:
"Using information from the navigation system's database, Speed Limit Assist can display the published speed limit in the instrument cluster display or in the available Head-Up Display. This innovative system makes it easier to keep tabs on your driving speed, especially in reduced speed zones. Even if you pass a sign without noticing it, the persisting display help keep you aware of published speed limits."
I think the most important wording is at the end (published speed limits) and certainly implies speed limit signs are not read actively but come from a database. Man, I thought they were actively read. Missed the fine print!
Tedjane, since you said it displayed on your Nav screen, it sounds like without the 513 SLA part which displays in the HUD or the instrument cluster, by default it displays on the Nav screen (which is what you experienced in Europe) since that's the source of the info.
Thread Starter
Member
Joined: Feb 2017
Posts: 196
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From: Oregon, USA
BMW X3, Mercedes GLC300 (EDP)
i found some information online published by Daimler that the system is designed to scan for round signs - like the speed limit signs in Europe. It noted that if it sees a square sign it scans the database for the info instead. so, basically, the system was designed for use in Europe. The info was from 2013
If that is the case I vote to change our speed limit signs to round signs.
Senior Member
Joined: Mar 2017
Posts: 417
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From: Virginia
'17 BMW X3, '18 GLC300 4Matic
+1
I thought you had said while cruising around Europe you were impressed with the accuracy of the speed limit displayed. Now we know why!
I thought you had said while cruising around Europe you were impressed with the accuracy of the speed limit displayed. Now we know why!
Last edited by Vaboy; Jul 14, 2017 at 11:49 PM.
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Joined: Sep 2020
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From: Atlanta, GA.
E450 Coupe
Just got my brand new E450 Coupe yesterday and I find it pretty ridiculous that my Nissan Maxima had the changing speed limits on full display but my 2020 Mercedes does not! And yes I did the research and read that it comes in the Drivers Assistant Package!!! Why not standard?!!! This is very disappointing!
