EU Speed Limiters - Page 3

**Paul** · 30-11-2021, 00:04

Quote:

Originally Posted by TheDaddy

It's probably your speedometer that's calibrated slightly under rather than the sat nav imo

Not sure why you think that, it has no connection with the speed Im actually doing. It simply displays what it thinks is the limit.

mrmistoffelees · 30-11-2021, 10:32

Radar cruise control & hazard avoidance/automatic braking on both cars.

Nothing on the bikes

1andrew1 · 30-11-2021, 11:43

Quote:

Originally Posted by Paul

Not sure why you think that, it has no connection with the speed Im actually doing. It simply displays what it thinks is the limit.

I think he said that as cars' speedometers tend to show a very slightly faster speed than the one you're driving whereas satnavs advise the actual speed you're driving.

BenMcr · 30-11-2021, 13:00

What we're talking about though is the speed limit sign, not the speed the car is doing.

So for instance Google Maps or built in sat nav may say it's a 70 limit on the motorway but due to roadworks it's actually a 50 or 60 which the camera will recognise and show.

Once this new system comes in it'll use that expected speed limit to then trigger the warning and power reduction.

Carth · 30-11-2021, 13:09

Quote:

Originally Posted by mrmistoffelees

Radar cruise control & hazard avoidance/automatic braking on both cars.

Nothing on the bikes

What????

Not even a gyroscope type thing that would tell an experienced rider if he's leaning at the correct angle for maneuvering round a bend, at 52MPH . . in the rain . . with a 12 knot side wind

Gosh

mrmistoffelees · 30-11-2021, 13:23

Quote:

Originally Posted by Carth

What????

Not even a gyroscope type thing that would tell an experienced rider if he's leaning at the correct angle for maneuvering round a bend, at 52MPH . . in the rain . . with a 12 knot side wind

Gosh

Not even ABS or TC

Carth · 30-11-2021, 13:43

Quote:

Originally Posted by mrmistoffelees

Not even ABS or TC

Rain sensing automatic wipers for the headlight(s)?
Tyre pressure monitors?
Auto adjusting anti-glare and self retracting wing mirrors (if fitted)?
A button that places the bike on it's stand when you get off?
Not even a double lock safety cover on the NOS switch?

mrmistoffelees · 30-11-2021, 15:36

Quote:

Originally Posted by Carth

Rain sensing automatic wipers for the headlight(s)?
Tyre pressure monitors?
Auto adjusting anti-glare and self retracting wing mirrors (if fitted)?
A button that places the bike on it's stand when you get off?
Not even a double lock safety cover on the NOS switch?

Nope, just 1043cc and 142hp @ 10,000 RPM of fun and games

**Paul** · 30-11-2021, 15:46

Quote:

Originally Posted by 1andrew1

I think he said that as cars' speedometers tend to show a very slightly faster speed than the one you're driving whereas satnavs advise the actual speed you're driving.

I think you're talking about something completely different to me.
This has nothing to do with the speed I'm doing, its a display of what [it thinks is] the speed limit on the road I'm using.
So if I'm on a motorway, it will display 70, regardless of whether I'm doing 50, or 100.

(and there is a prime example of the issue - it instantly fails on Smart Motorways, as it cant detect the current "smart" limit).

mrmistoffelees · 30-11-2021, 15:51

Quote:

Originally Posted by Paul

I think you're talking about something completely different to me.
This has nothing to do with the speed I'm doing, its a display of what [it thinks is] the speed limit on the road I'm using.
So if I'm on a motorway, it will display 70, regardless of whether I'm doing 50, or 100.

(and there is a prime example of the issue - it instantly fails on Smart Motorways, as it cant detect the current "smart" limit).

Aah so it's using the metadata from the GPS to display the speed, rather than cars equipped with cameras to read traffic signs? That would be annoying on 'smart motorways' or where they've put temp speed limits in on other roads

**Paul** · 30-11-2021, 16:06

Quote:

Originally Posted by mrmistoffelees

Aah so it's using the metadata from the GPS to display the speed, rather than cars equipped with cameras to read traffic signs? That would be annoying on 'smart motorways' or where they've put temp speed limits in on other roads

It has a camera, but the camera cannot detect the overhead smart motorway signs.

I dont know about temp limits, Ive never really noticed.
If they have proper signs, at roughly the right height, it may notice them.

BenMcr · 30-11-2021, 18:46

My Skoda Kamiq picks up the motorway signs on the camera as far I recall but I'm always driving to my own recognition of them so I don't immediately remember where it hasn't.

Mistmatches I have seen are are on slower speed roads where I've had more variation.

tweetiepooh · 01-12-2021, 10:25

My car (2016 Mondeo) has a system to read speed limit signs. The TomTom SatNav (5200) can know about road speed limits including reduced for road works and for average speed zones will display my average speed. Neither are 100% accurate though, the former can read the wrong sign sometimes or if joining from lay-by or some side roads where there isn't a sign assumes speed from map data (map is very out of date on in car system). The latter relies on a mobile signal and have up to date information being transmitted but does get it right most of the time.

Here is a question though, you are driving along nicely at the limit but some buffoon in an older car is tail gating you quite merrily. You car "detects" a new lower limit and slows down... Will it detect said buffoon and slow appropriately, will you have time to override to slow appropriately?

Another - I've seen some situations with a lower limit sign but notice that only applies during certain times or situations or when lights are flashing.

I think there are just too many variables and while some system to warn of speed (like what my car does) seems sensible to have that system exert control of the car simply based on correct reading of road signs or GPS data is far less so. My TomTom includes lifetime map updates and has mobile chip to get new information on traffic etc, my car doesn't and I don't want and can't afford to have to buy new maps all the time. Who pays for that infrastructure? Oh we will of course.

Carth · 01-12-2021, 10:56

I vaguely remember from the highway code that the driver should be in full control of the vehicle at all times, and I think this point cropped up a few times regarding the 'self driving car' . . Tesla I believe?

How far are we prepared to go in letting a computer chip and camera make driving decisions?

mrmistoffelees · 01-12-2021, 11:38

Quote:

Originally Posted by Carth

I vaguely remember from the highway code that the driver should be in full control of the vehicle at all times, and I think this point cropped up a few times regarding the 'self driving car' . . Tesla I believe?

How far are we prepared to go in letting a computer chip and camera make driving decisions?

Tesla doesn't have fully autonomous mode available to the general public as yet, drivers are still required to be in full control of the vehicle.

Personally, the sooner we get to a fully autonomous driving state the better, it potentially allows for those with mobility issues or visual impairment who can't currently drive to be able to experience the same freedoms as able bodied drivers currently do.