Re: Just received an email from
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I heard the same from him today. He also said..... Quote:
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SuperMID Functions and calibration detail
https://img223.imageshack.us/img223/1883/m1menueng7of.jpg
SuperMID Functions and calibration detail. I had to convert to jpeg before the service would accept it. The pdf is much clearer. |
Speed Sensor
The SuperMID set up for the Prius has a distance parameter value of 2572. If you divide by 3, you get 857. The Prius OEM tire has 855 revs per mile. So my guess is that the Prius speed sensor sends out 3 pulses per revolution. Can anyone tell me if the Honda speed sensors have the same 3 pulses per revolution? If so, since my tires are 840 revs per mile, I will set the parameter to 2520.
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Re: Speed Sensor
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Re: Speed Sensor
Hello all from Japan.
Thank you for your interest in my SuperMID. Quote:
Let's imagine an old mechanical speedometer driven by wire cable. The industrial standard is 637 revolution for 1km drive. Hopefully, Honda uses the same standard. Prius sends 4 pulses per the cabe revolution, which means about 39.25 cm/pulse. ( 100,000 cm / (637 * 4 ) ) The SuperMID M-1 wants 0.01km(10m) resolution, then I programmed it as follows... A 16bit register accumulates "some value" until it overflowed(value becomes 65536 or over), then increment the 10m memory data. We need 25.48 pulses for 10m drive. ( 1000 cm / 39.25 cm ) The "some value" is 65536 / 25.48 = 2572. So, please forget to compare the tire sizes between Prius and del sol. Please compare between standard and your tire on del sol, or it is better to calibrate the display value using your favorite miles-post method. :) Regards, Yoshi |
Re: Speed Sensor
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mile post calibration may be
mile post calibration may be the best bet for me. My tires are not the stock size, so my odometer/speedometer is not 100% accurate, although it is within error.
Maybe another possible solution is to drive a certain distance with a handheld GPS unit that is accurate within a few feet and then use the distance displayed there. |
Whichever method you use
Whichever method you use [milepost or GPS], be sure to keep in mind that the more markers you pass, the more accurate your results due to the law of averaging.
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Re: Whichever method you use
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SuperMID M1 Coming Soon
Good from Yoshi today. He said that he hoped to have the M1 finished over the weekend and send it to me on Monday. It should be here 6-10 after that. I can't wait!
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