[Diy_efi] OT: ABS retrofit into older car...

[Mike]

At 09:07 AM 12/5/02 -0500, you wrote:

>That is true for all but the most recent systems.  In order to reduce the
>pulsing that the driver feels on the gas pedal, systems are moving away from
>bang-bang/PWM control toward a more proportional control. 

PWM - is actually a proportional control that is sourced by the electronics
and micro-controller, it all depends how good the destination mechanical
device is though. Take a classic proportional hydraulic valve, controlled
by a PWM current with say 16 bit or more resolution - theres nothing more
proportional than that...





Rgds

Mike
Perth, Western Australia
Some power/auto stuff here:-  http://www.iinet.net.au/~erazmus


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