sensorless electric motor position detection

[kleenair at ix.netcom.com]

Dave Zug wrote:
> 
> anyway, can someone tell me how ABS detects wheel position/movement?
> (keep this one for the FAQ!)
> 
> and, is ABS considered EFI related? (be nice)

Hi Dave,
Most ABS systems use a tooth wheel at the hub.  I'm pretty sure most 
system detect a wheel slip condition by calculating the deceleration rate 
of the wheel.

Although its not EFI, many of the same processes apply to ABS

Mazda