Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!hp-pcd!hp-vcd!johne From: johne@hp-vcd.HP.COM (John Eaton) Newsgroups: sci.electronics Subject: Re: Cruise Control Speed Pick-up (was: Re: Inductive pickups.) Message-ID: <2470020@hp-vcd.HP.COM> Date: 5 Jun 91 14:39:29 GMT References: Organization: Hewlett Packard, Vancouver, WA Lines: 19 >>>> > >For speed pickup, you have 2 easy solutions. If your car is manual >shift, you can simply use the spark signal from any convenient point. >Does not work for automatics because of torque converter slip. As a >reference point, I built a cruise control for my 280 and used the >spark signal with great success. ---------- When my old after market cruise control gave up the ghost I replaced it with a newer model. The old one had the magnet on the drive shaft while the new one had a single wire that plugged into an unused terminal on my electric spark control. Even with an automatic transmission it does a reasonable job at speed control. It's not as good as the magnet but I can live with it. I couldn't figure out how they did it either. John Eaton !hp-vcd!johne