Posted by David G on February 20, 2016 at 16:07:01 from (63.152.108.111):
I got the microprocessor to open the throttle body tonight, so a good success.
The throttle body is closed at 20% PWM, and fully open at 45%, I would rather that be 20% to 80% so I get better resolution. The PWM frequency is 1 kHz, the typical throttle body frequency is about 500 Hz, so I will try slowing that down and see if I can use more of the range of the output. It is a lot more difficult for me to solder small components than when I was in my 20s, think I will have to get one of those lighted magnifiers.
The throttle body has a built in TPS, I will have to get those wired in so it is in closed loop control.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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