Briggs 10hp -Hall Effect ignition trigger
Posted: Wed Jul 15, 2009 1:46 pm
I'm working on a project involving converting a 10hp single cylinder briggs & stratton to electronic injection & ignition. We've had the engine up and running with megasquirt controlling only the njection, up from 9.5hp to 12hp.
I've got a hall sensor that I'm not sure will work properly. The sensor read just under supplied voltage when no near the magnet, ie 5V for 330deg of rotation. The voltage drops to ~20mV when close to the magnet, 30deg of crank rotation. The falling edge is about 45deg BTDC and rising again at ~10deg BTDC. Will this sensor work or do I need a sensor that goes from low to high? Also if it will work any advice whether to trigger off the rising or falling edge?
The sensor is a Hamlin 55110 http://www.hamlin.com/product-detail.cfm?productid=78
I've seen a posting regarding using a flywheel magnet but lacking final results viewtopic.php?f=38&t=13517&p=85686&hili ... ion#p85686
Thanks for any help, John
I've got a hall sensor that I'm not sure will work properly. The sensor read just under supplied voltage when no near the magnet, ie 5V for 330deg of rotation. The voltage drops to ~20mV when close to the magnet, 30deg of crank rotation. The falling edge is about 45deg BTDC and rising again at ~10deg BTDC. Will this sensor work or do I need a sensor that goes from low to high? Also if it will work any advice whether to trigger off the rising or falling edge?
The sensor is a Hamlin 55110 http://www.hamlin.com/product-detail.cfm?productid=78
I've seen a posting regarding using a flywheel magnet but lacking final results viewtopic.php?f=38&t=13517&p=85686&hili ... ion#p85686
Thanks for any help, John