bazza_g Posted July 29, 2008 Report Share Posted July 29, 2008 Just came across this - Dynolicious - its available on the itunes app store and claims to be able to measure...... 0-60 MPH Other Speed Tests (0-10 MPH through 0-100 MPH in 10MPH increments) Quarter Mile Elapsed Time Quarter Mile Trap Speed Elapsed Time and Trap Speed for standard intervals (60', 330', 1/8 Mi, 1000') Lateral G's (current and peak) Braking G's (current and peak) Wheel Horsepower Estimated Engine Horsepower Realtime Speedometer and Graphs Realtime graphical skidpad display View results for latest test run or any saved run View averages based on vehicle, date, or modification Compare results between vehicles, dates, or before-and-after modifications 0-60 MPH: +/- 0.08 sec* Quarter Mile: +/- 0.10 sec*, +/- 1.5 MPH* *Results based on preliminary testing. A detailed accuracy analysis using professional timing equipment at a regulation dragstrip will be posted soon. :confused: If its only using the ipod/iphones accellerometer how does it know when you've hit 60mph?? Or am I missing something? Link to comment Share on other sites More sharing options...
Biscuits Posted July 29, 2008 Report Share Posted July 29, 2008 Hmmmm I'm sceptical if it'll work, but for £7.49 it might be worth you buyin git bazza...... and let us all know Link to comment Share on other sites More sharing options...
bazza_g Posted July 29, 2008 Author Report Share Posted July 29, 2008 right, I've downloaded it and shaking it around it appears to measure the G forces etc but I've still no idea how, if I stick it in the car, it will know when I've hit 60mph?? Will try it on the way to work tomorrow Link to comment Share on other sites More sharing options...
Biscuits Posted July 30, 2008 Report Share Posted July 30, 2008 Just bought it too.... going to run round the carpark and see what happens Link to comment Share on other sites More sharing options...
bazza_g Posted July 30, 2008 Author Report Share Posted July 30, 2008 Just bought it too.... going to run round the carpark and see what happens on foot??? Link to comment Share on other sites More sharing options...
Mook Posted July 30, 2008 Report Share Posted July 30, 2008 Is it not GPS based? The it wouldn't care about g-force etc. - it would just use the same principle as speed camera detectors that output your current speed Link to comment Share on other sites More sharing options...
Biscuits Posted July 30, 2008 Report Share Posted July 30, 2008 According to the help file, it just uses the accelorommmmmeters, not the GPS. No matter how much i run round, it really doesn't show me doing much Link to comment Share on other sites More sharing options...
Cuprabob Posted July 30, 2008 Report Share Posted July 30, 2008 If it knows acceleration through the onboard accelerometers and has a clock to measure time it would be able to calculate speed and thus know when it's at 60mph Link to comment Share on other sites More sharing options...
bazza_g Posted July 30, 2008 Author Report Share Posted July 30, 2008 yup - one of the engineers at work just sat me down and explained this whole acceleration/time/velocity thing - its pretty cool - the speedo on the ipod matches the speedo on the car almost exactly, very strange to watch After a 5.68 to 60 this morning, I'm going to work on my launch this evening Link to comment Share on other sites More sharing options...
Mollox Posted July 30, 2008 Report Share Posted July 30, 2008 This is why I'm not a scientist... If it uses accelerometers and you're travelling at a pure and constant 60mph, how can it know how fast you're going since you're neither accelerating nor decelerating? Also, thanks Bazza - this post made me decide to get an iphone Link to comment Share on other sites More sharing options...
Cuprabob Posted July 30, 2008 Report Share Posted July 30, 2008 If your at 60mph constant it knows your not gaining or losing speed because acceleration is zero. If you slow down your acceleration becomes negative. You cannot change speed without some form of acceleration, positive or negative. Get those Calculus books out. Link to comment Share on other sites More sharing options...
Andy_Bangle Posted July 30, 2008 Report Share Posted July 30, 2008 There are programs like this for the Nokia N95 / Nokia 5500 etc as the accelerometer built in, just like the iphone. Once download and activated they give hours of endless fun to geeks Tempes GT - Tempes GT CarMeter - symbianresources.com - Projects: CarMeter Although I doubt they're as effective as the iphone toys. Link to comment Share on other sites More sharing options...
Mollox Posted July 30, 2008 Report Share Posted July 30, 2008 If your at 60mph constant it knows your not gaining or losing speed because acceleration is zero. If you slow down your acceleration becomes negative.You cannot change speed without some form of acceleration, positive or negative. Get those Calculus books out. I suppose my point was if the exercise started at 60mph then how would it know, but if it can remember and its just worked out that its just hit 60 then it makes more sense Link to comment Share on other sites More sharing options...
Irnbrukid Posted July 30, 2008 Report Share Posted July 30, 2008 The tempes can be found online... Link to comment Share on other sites More sharing options...
Muppetboy Posted July 30, 2008 Report Share Posted July 30, 2008 Does this work with the itouch or just the iphone? Link to comment Share on other sites More sharing options...
Ritey Posted July 30, 2008 Report Share Posted July 30, 2008 Site says both Link to comment Share on other sites More sharing options...
bazza_g Posted July 30, 2008 Author Report Share Posted July 30, 2008 I've got it running on a iPod Touch - needs v2.0 of the software from Apple/iTunes to allow the apps to install Link to comment Share on other sites More sharing options...
techieboy Posted July 30, 2008 Report Share Posted July 30, 2008 On a related but slightly more track orientated vein (and for Nokia S60 based phone users only). Try RaceChrono - The GPS Lap Timer. It's a cracking piece of software that will plot race circuits and give you lap times/sector times, lap on lap analysis, acceleration tests etc. The current version also has built in support for data capture via OBDII ports. Quite a few tracks are already available for download so no initial plotting required. Data can even be exported and used for video overlays. Best of all, it's free! Link to comment Share on other sites More sharing options...
Muppetboy Posted July 30, 2008 Report Share Posted July 30, 2008 I've got it running on a iPod Touch - needs v2.0 of the software from Apple/iTunes to allow the apps to install Thanks Bazza, I'm running 2.0 so will download it now - if it's rubbish I want compensation Link to comment Share on other sites More sharing options...
Biscuits Posted July 30, 2008 Report Share Posted July 30, 2008 on a seperate note bazza, does v2.0 iPhone firmware transfer contacts to your idrive? Mine stopped once I upgraded Link to comment Share on other sites More sharing options...
Ritey Posted July 30, 2008 Report Share Posted July 30, 2008 Was that via Bluetooth? Link to comment Share on other sites More sharing options...
Biscuits Posted July 30, 2008 Report Share Posted July 30, 2008 Was that via Bluetooth? Yes, iPhone connects via Bluetooth for phone functions. Link to comment Share on other sites More sharing options...
Ritey Posted July 30, 2008 Report Share Posted July 30, 2008 Then you might be lucky with the 2.1 software about to be launched, if it retro fixes but rumors were it was the car manufacturers that receive software updates for their interfaces from Apple, rather than fixing the phone/pods as they are effectively moving forward and the car manufactures get carried along the way, but in America a lot of people are downgrading because of the loss of functionality. Might make Apple revise there strategy, but I doubt it Link to comment Share on other sites More sharing options...
Chav Posted July 30, 2008 Report Share Posted July 30, 2008 that rumour is bollox. it doesnt work like that. its to do with bluetooth specifications and errors in firmware. they dont work together, they just both follow the spec (theoretically) obviously either the car maker or the phone maker or both has bugs. Link to comment Share on other sites More sharing options...
Biscuits Posted July 30, 2008 Report Share Posted July 30, 2008 Well version 1.x has worked seemlessly with iDrive, as soon as I upgraded to v2.0 (firstly with my old iPhone, now with a 3G) it only handles calls and shows the signal meter.... no contacts. I'm a huge Apple fan, but this time I think they released v2.0 without testing it very well... not the only bugs in it, it crashes frequently too. Anyway, back on topic, I recon the iPhone snap-in cradle will be ideal for holding the phone while testing my 0-60 times tomorrow Link to comment Share on other sites More sharing options...
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