Good day

I want to develop a launch control system for a student racing car where I need to cut engine spark if wheel slip is detected. I want to use a variable reluctant sensor with a sprocket to determine the speed at each wheel and the convert the frequency to a voltage using a LM2907/LM2917 IC. Then I want to feed these voltages into four 5V inputs of my arduino and apply the necessary logic. Any tips on how to approach this problem?

King Regards
Loftie

 

One thing that comes to mind is to eliminate the frequency-to-voltage-to-digital conversion and go straight into the Arduino with the frequency. Perhaps you would need a comparator to square up the signal for the Arduino.

 

What is the absolute max frequency you expect to get out of the sensor? That will guide how best to process the signal.

ak

 

Welcome to the AAC forum.

The owners of All About Circuits have elected not to host discussions of automotive electrical system modifications/enhancements due to safety concerns, the potential of legal ramifications and the possible circumvention of vehicle regulations at the state and federal level.

This thread is against the AAC forum rules, Chapter 6, as seen here:

6. Restricted topics. The following topics are regularly raised and however are considered “off-topic” at all times and will results in Your thread being closed without question:

• Any kind of over-unity devices and systems
• Automotive modifications <= Though off-road your application falls into this category
• Devices designed to electrocute or shock another person
• LEDs to mains
• Phone jammers
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• Transformer-less power supplies

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You might find answers to your questions in one of these forums:

http://forum.allaboutcircuits.com/showthread.php?t=54400

Another good forum that shares many of the same membership is http://www.electro-tech-online.com/ . Good luck.