DIY_EFI Digest Friday, January 14 2000 Volume 05 : Number 021 In this issue: 4.97sec, 314 mph Knock sensor chip from Harris Re: Knock sensor chip from Harris See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- Date: Thu, 13 Jan 2000 14:41:59 -0600 From: steve ravet Subject: 4.97sec, 314 mph Got this email from a WWW browser. Not sure exactly what he's trying to build, but it sounds like an interesting project. Please reply to him directly since he's not on the list. - --steve TobyTraut@xxx.com wrote: > > Sir, > > I wandered across your DIY EFI page tonight, and thought that someone may be > interested in a project I would like to try. > > I own a turbo-jet powered drag car. I have eliminated the stock > hydro-mechanical fuel control, and replaced it with an electronic pressure > control through the stock mechanical injectors. > > I have recently become interested in electronics, and would like to build a > true feedback fuel control, and also get rid of the mechanical overspeed > governer, while also maybe incorporating a data-logger. This is a pretty > overwhelming project for a beginner. > > This car has run the quarter mile in 4.97 seconds, at over 314 mph, and > perhaps it would make an interesting project for an electronic engineering > student. I can't afford to hire someone to do it, but I think I can afford to > pay for materials. > > Perhaps even if someone would just want to design a system, I could try my > hand at assembly. > > If anyone is interested, they can e-mail me at Tobytraut@xxx. I have > attached a photo of the car, it's not very good, but it is the only one I > have scanned. > > Thank You, > > Toby Ehrmantraut > Odyssey Jet - -- Steve Ravet steve.ravet@xxx.com Advanced Risc Machines, Inc. www.arm.com ------------------------------ Date: Thu, 13 Jan 2000 16:48:57 -0800 From: Benoit Robert Subject: Knock sensor chip from Harris (as seen somewhere else) Harris makes (or used to make) a chip called an Engine Knock Signal Processor. The part number is HIP9010 and you can easily get a hold of the data sheets with their Automatic FaxBack system at 407-724-7800. It uses two piezo sensors and switches one for sensing knock and the other to cancel background noise. The chip will subtract the background noise and filter based on the parameters sent to the chip. Hookup is via an SPI bus and you can program reference filter frequency, knock filter frequency and a bunch of other things. I haven't used it but from the data sheet, it looked like pretty comprehensive. Good reading. Regards to all, B.Robert ------------------------------ Date: Thu, 13 Jan 2000 20:39:47 -0500 From: "Bruce Plecan" Subject: Re: Knock sensor chip from Harris I tried tracking it down one time, and they had discontinued it, and the there was supposedly one available from France, and never got anywhere with it. If anyone has a lead on this I'd like to hear about it. Course I never have any luck with ICs. Grumpy | (as seen somewhere else) | Harris makes (or used to make) a chip called | an Engine Knock Signal Processor. The part | number is HIP9010 and you can easily get | a hold of the data sheets with their | Automatic FaxBack system at 407-724-7800. | It uses two piezo sensors and switches | one for sensing knock and the other to | cancel background noise. The chip will | subtract the background noise and filter | based on the parameters sent to the chip. | Hookup is via an SPI bus and you can program | reference filter frequency, knock filter | frequency and a bunch of other things. | I haven't used it but from the data sheet, | it looked like pretty comprehensive. Good | reading. | Regards to all, B.Robert ------------------------------ End of DIY_EFI Digest V5 #21 **************************** To subscribe to DIY_EFI-Digest, send the command: subscribe diy_efi-digest in the body of a message to "Majordomo@xxx. A non-digest (direct mail) version of this list is also available; to subscribe to that instead, replace "diy_efi-digest" in the command above with "diy_efi".