12 posts / 0 new
Last post
Ap1Chief
Online
Last seen: 13 min 50 sec ago
Joined: 04/13/2020 - 17:40
V2 Bump box with PWM output

 

So I wanted to setup my bump box, and was going to just make my own with the DIY boxes on youtube, the one that stood out looked VERY smooth, and used PMW boards to a SSR. They used the freq, and duty cycle of the pulsing to pulse the trans brake to turn the "bumping" into more of a smoother Crawl in style bump box. Basically once I get the write output to the SSR, I can adjust duty cycle to it to get the right pulse to get the trand brake to crawl in! Figured if my EMS can do this, I got less wires to little china circuit boards lol   So QUESTION, I know the D16 which is my Mac valve uses duty cycle tables for controlling boost... is there another output i can use like the mac valve(and duty tables) for pulsing a ground signal to the SSR? AND will this all work? Is all i need is a SSR and a "activate switch" (bump switch) inline with the output wire to SSR to activate the pulsing? 

 

 

Ap1Chief
Online
Last seen: 13 min 50 sec ago
Joined: 04/13/2020 - 17:40
Anyone?

Anyone?

AEM_NS
Offline
Last seen: 3 days 2 hours ago
Joined: 06/06/2014 - 09:31
I've not heard of anyone

I've not heard of anyone attempting to use a Series 2 to control a bump box. Can't say if it will or won't work. If you could better define your pulsed lowside requirement then we might be able to provide some direction on that but as far as bump box functionality, you've got a science experiment on your hands that you won't be able to get much help from us on unfortunately since no one here has done such a thing.

Ap1Chief
Online
Last seen: 13 min 50 sec ago
Joined: 04/13/2020 - 17:40
Basically need a ouput that

Basically need a ouput that is PWM like the mac valve (boost controller) output... is there another output, that I can bring a graph up to control the pulse duty on a channel? 

AEM_NS
Offline
Last seen: 3 days 2 hours ago
Joined: 06/06/2014 - 09:31
Yeah - User PW. Saying you

Yeah - User PW. Saying you need a PWM output doesn't really tell me anything. You need to define how the output behaves.

Ap1Chief
Online
Last seen: 13 min 50 sec ago
Joined: 04/13/2020 - 17:40
So my idea is, use LS3 (EVAP

So my idea is, use LS3 (EVAP Bypass Solenoid Valve ) which i dont use anymore, and use the AT C clutch duty table for duty%? 

AEM_NS
Offline
Last seen: 3 days 2 hours ago
Joined: 06/06/2014 - 09:31
You'd use User 1 PW. Look at

You'd use User 1 PW. Look at the User PW Output tab. You'll probably need to add in the User 1 PW table if looking at an 02v02 cal. AT stuff is for auto trans - I don't think you'll get it to work like you'd want for something else that isn't a Supra auto trans.

Ap1Chief
Online
Last seen: 13 min 50 sec ago
Joined: 04/13/2020 - 17:40
Ok, yea im trying to do what

Ok, yea im trying to do what he did but with the EMS for the PWM instead of these china board. https://www.youtube.com/watch?v=gBXEy6JhMYk&t=25s

AEM_NS
Offline
Last seen: 3 days 2 hours ago
Joined: 06/06/2014 - 09:31
Yeah I understand the concept

Yeah I understand the concept. Like I said before, you'd use User 1 PW. Set the analog input, the output, the frequency (period) and then set the duty table however you want. Mess around with those settings to see if you can get it to work how you want.

Ap1Chief
Online
Last seen: 13 min 50 sec ago
Joined: 04/13/2020 - 17:40
So i was able to do it! it

So i was able to do it! it wasnt to bad at all. Used 02#2 Volt as a "input" for my bump button, when i tsees 5V it moves the duty X axis to the right, than i can move to what duty cycle i want... Did alot of messing around with the settings on the Hz/MS plus duty time, and i got it pretty smooth little bumps. Wish could get it to SLOW crawl... but ive only been able to get it to HARD crawl... as in really wants to leep foward. but ill keep playing with it, but it WORKS! 

 

AEM_NS
Offline
Last seen: 3 days 2 hours ago
Joined: 06/06/2014 - 09:31
That's cool to hear. Thanks

That's cool to hear. Thanks for following up.

Ap1Chief
Online
Last seen: 13 min 50 sec ago
Joined: 04/13/2020 - 17:40
no problem 

no problem