Print Page - PWM controled water injection pump speed/pressure

Title: PWM controled water injection pump speed/pressure
Post by: mads b (dk) on April 07, 2015, 06:29:14 PM

Is it possible to built a water injection controller within vems?

The pump used 10amp at max pressure.

Regards Mads

Title: Re: PWM controled water injection pump speed/pressure
Post by: mads b (dk) on April 07, 2015, 06:32:12 PM

This kit..... but the controller is dead.

Title: Re: PWM controled water injection pump speed/pressure
Post by: VEMS on April 07, 2015, 08:24:53 PM

Hello Mads,

Sure why not, use a FET or IGBT output and Secondary PWM function to inject with programmable duty cycle versus rpm/map.

Best regards, Dave

Title: Re: PWM controled water injection pump speed/pressure
Post by: mads b (dk) on April 12, 2015, 06:08:40 AM

Thanks ill tryk that :)

Title: Re: PWM controled water injection pump speed/pressure
Post by: mads b (dk) on July 17, 2015, 11:09:35 AM

Am i right that i have to use a ignition output because my injection can only take 8A ??

injection drivers IRF640N = 8A
ignition drivers 14N40FVL = 14A

Thanks Mads

Title: Re: PWM controled water injection pump speed/pressure
Post by: mads b (dk) on August 08, 2015, 06:12:15 AM

I'm running my waterinjection directly from a ignition driver and it seems to be working as it should....... but do I need something like this to be safe?

http://www.msextra.com/forums/viewtopic.php?t=59593

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VEMS => Modifications and Repairs => Topic started by: mads b (dk) on April 07, 2015, 06:29:14 PM