How does the speedometer gets its speed data?
#21
Re: Very Interesting!
This photo is the hidden Nav screen showing satellites being tracked, Lat, Lon, Elev, Date, and Time.
This photo is the hidden Nav screen showing much more including Horizontal drop, Vertical drop, Speed (to the tenth of a mph!), Direction, Date, Time, as well as Satellite info such as: Azimuth, Elevation, and others I don't know what they mean.
Last edited by Flash; 12-03-2006 at 09:45 AM. Reason: Added instructions on how to find the GPS Detail screen
#22
Re: How does the speedometer gets its speed data?
thanks for clearing that up.
No, I did not do the GPS test on the car with the original tires. (and I don't feel like putting the original tires back on for a test... )
If there is anyone in the South San Jose Ca. area with a 06/07 Civic Hybrid with the original wheel tire combination who would like to help with this test, please email or PM me.
I suspect that given the speedometer reading with the new tires is dead on the GPS data, that the OEM tires would be a little slower because those tires are taller.
No, I did not do the GPS test on the car with the original tires. (and I don't feel like putting the original tires back on for a test... )
If there is anyone in the South San Jose Ca. area with a 06/07 Civic Hybrid with the original wheel tire combination who would like to help with this test, please email or PM me.
I suspect that given the speedometer reading with the new tires is dead on the GPS data, that the OEM tires would be a little slower because those tires are taller.
-dan
#23
Re: How does the speedometer gets its speed data?
Flash:
I've known about the Navi diagnostic screens for several weeks, but I've never seen the screen you show called "GPS Detail." It shows the current speed GPS speed which I would love to be able to see. How did you get to the "Detail" screen?
Thanks.
-dan
I've known about the Navi diagnostic screens for several weeks, but I've never seen the screen you show called "GPS Detail." It shows the current speed GPS speed which I would love to be able to see. How did you get to the "Detail" screen?
Thanks.
-dan
#24
Re: How does the speedometer gets its speed data?
The spedo was designed to handle a range of tire sizes... so it's a comprimise between the various sizes and the differences is only amplified at higher speeds.
#25
Re: How does the speedometer gets its speed data?
Darren, thanks for posting the photos and info on those screens. I tried them out this evening. Nifty... makes you wonder if there are any other diagnostic things to play with! One question for you, though... Your screens show your latitude & longitude. That puts you on I76, maybe a mile west of Gibsonia Rd. At that point, I76 only goes east / west, yet your screen shows "direction 1.6 degrees". How is that possible? Should have been (about) 90 if you were headed east or 270 if headed west. As you can plainly see, I have too much time on my hands!
#27
Re: How does the speedometer gets its speed data?
Yes I do wonder what other diag screens/modes are available separate from what a ScanGauge II or OBD-II reader can obtain. Thanks for your confirmation as I was, in fact, heading west on I-76 and can send you other screens for confirmation. As for direction - I don't know - ask Honda. That might be the difference in direction since the last 10-second mpg-update or the difference in direction to the main/primary GPS satellite. Good question though.
An instrument cluster hidden screen would be neat too - something like holding down the Reset button and the left brightness button while turning on the car or something.
An instrument cluster hidden screen would be neat too - something like holding down the Reset button and the left brightness button while turning on the car or something.
#28
Re: How does the speedometer gets its speed data?
I tried the special screen and got the strange "direction" reading, too. Something in the 1 degree range. Perhaps it has something to do with direction of one of the satellites, instead of actual compass heading.
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