DIS speed warnings
Been playing with the speed warnings on my A3, and am a tad confused.
Lets call the warnings S1 and S2 for brevity. If I set S1 to, say, 50mph whilst driving at that speed, then the warning doesn't seem to trigger until I'm doing over 55mph(ish). The warning will then not clear until I drop below 50mph. I can understand the need for a 1 or 2mph difference between the "trigger" and "disable" points, to avoid constant on/off conditions whilst driving around the set speed, but 5mph!? If I set the speed warning at 50mph, then I want to know when I exceed that speed, not when I exceed 55! Is this normal or do I have a problem with mine? S2 exhibits similar behaviour, but if I set this to, say, 80mph, then I seem to have to do around 90mph to trigger it! My first reaction was that the DIS system was using the correct road speed, and the speedo was over-reading, as many of them do, but then the system should set the warning at whatever speed I'm doing, regardless of whether the speedo is accurate or not. -- Toby |
Re: DIS speed warnings
"Toby Groves" <news@iconia.org.uk> wrote in message news:Dyzz1KAllX5$Ewem@iconia.org.uk... > If I set the speed warning at 50mph, then I want to know when I > exceed that speed, not when I exceed 55! Is this normal or do I have a > problem with mine? AFAIK, it's normal. My A4 works the same way. I guess it has to do with the assumption that most cops will not give you a ticket if you're just a couple of mph over the limit, so the warning doesn't kick in either. If you want the warning to go off at 50mph, then set it at 45mph. Cheers, Pete |
Re: DIS speed warnings
In article <bs4gsc$dmi$1@news.onet.pl>, Pete <escape2music@hotmail.com>
writes > >"Toby Groves" <news@iconia.org.uk> wrote in message >news:Dyzz1KAllX5$Ewem@iconia.org.uk... >> If I set the speed warning at 50mph, then I want to know when I >> exceed that speed, not when I exceed 55! Is this normal or do I have a >> problem with mine? > >AFAIK, it's normal. My A4 works the same way. I guess it has to do with >the assumption that most cops will not give you a ticket if you're just a >couple of mph over the limit, so the warning doesn't kick in either. I suppose there's some logic in that, but the circa 10mph differential required at high speed is pushing things a bit. > If you >want the warning to go off at 50mph, then set it at 45mph. Well there is that, but then if I stray over 50mph, I have to drop right down to 45mph to clear it. Does yours also do this? -- Toby |
Re: DIS speed warnings
"Toby Groves" <news@iconia.org.uk> wrote in message news:Z5aFnEBBsc5 > Well there is that, but then if I stray over 50mph, I have to drop right > down to 45mph to clear it. Does yours also do this? To tell you the truth, I don't remember, but my owner's manual says 'yes'. Apparently the warning also goes out if you drive 25mph above the set limit for at least 10 seconds. Personally, I don't use these warnings because I find them incredibly annoying. ;-) Cheers, Pete |
Re: DIS speed warnings
"Toby Groves" <news@iconia.org.uk> wrote in message
news:Dyzz1KAllX5$Ewem@iconia.org.uk... > Been playing with the speed warnings on my A3, and am a tad confused. > > Lets call the warnings S1 and S2 for brevity. If I set S1 to, say, > 50mph whilst driving at that speed, then the warning doesn't seem to > trigger until I'm doing over 55mph(ish). The warning will then not > clear until I drop below 50mph. I can understand the need for a 1 or > 2mph difference between the "trigger" and "disable" points, to avoid > constant on/off conditions whilst driving around the set speed, but > 5mph!? If I set the speed warning at 50mph, then I want to know when I > exceed that speed, not when I exceed 55! Is this normal or do I have a > problem with mine? > > S2 exhibits similar behaviour, but if I set this to, say, 80mph, then I > seem to have to do around 90mph to trigger it! > > My first reaction was that the DIS system was using the correct road > speed, and the speedo was over-reading, as many of them do, but then the > system should set the warning at whatever speed I'm doing, regardless of > whether the speedo is accurate or not. It depends on how *fast* you're getting to the given speed. (i.e. acceleration seems to pay a major role) It's not an accurate way to see what you're doing with Gatsos... -- Regards, Hairy One Kenobi Disclaimer: the opinions expressed in this opinion do not necessarily reflect the opinions of the highly-opinionated person expressing the opinion in the first place. So there! |
Re: DIS speed warnings
In article <bs4jfn$855$1@news.onet.pl>, Pete <escape2music@hotmail.com>
writes > >"Toby Groves" <news@iconia.org.uk> wrote in message news:Z5aFnEBBsc5 >> Well there is that, but then if I stray over 50mph, I have to drop right >> down to 45mph to clear it. Does yours also do this? > >To tell you the truth, I don't remember, but my owner's manual says 'yes'. >Apparently the warning also goes out if you drive 25mph above the set limit >for at least 10 seconds. > >Personally, I don't use these warnings because I find them incredibly >annoying. ;-) Heh :) I mainly wanted to use S1 for watching speed limits, particularly temporary ones imposed on motorways and dual-carriageways, as in such conditions it's all too easy to stray over it. -- Toby |
Re: DIS speed warnings
In article <UNkFb.7924$FN.5108@newsfep4-winn.server.ntli.net>, Hairy One
Kenobi <abuse@[127.0.0.1]> writes >It depends on how *fast* you're getting to the given speed. (i.e. >acceleration seems to pay a major role) Interesting, not realised that, will have to experiment. >It's not an accurate way to see what you're doing with Gatsos... Heh, you read my mind :) It's the 40/50 limits at motorway roadworks and such like where I need it most, as it's very easy to stray over the limit. I'm currently using the cruise control to maintain a constant speed in these circumstances, which works quite well. -- Toby |
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