standalone DBW system
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From: Central Cal.
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is there a long answer
any info on how I can fake out the signal the TAC is looking for from the ECU and PCM? Its looks like the TAC communicates serially with the ECU and PCM if I read the wiring correctly. I tried to use an Arduino as controller but with not a good result. The gm system would work better is I could hack it to work as standalone. Any info is appreciated
any info on how I can fake out the signal the TAC is looking for from the ECU and PCM? Its looks like the TAC communicates serially with the ECU and PCM if I read the wiring correctly. I tried to use an Arduino as controller but with not a good result. The gm system would work better is I could hack it to work as standalone. Any info is appreciated TECH Senior Member
Joined: Jun 2016
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From: Central Cal.
The problem is it is all so integrated with each other, which is the primary reason for DBW. Idle control is with the ECM; there is no IAC. With a stand alone, you would need a way to control idle, AND a way for the engine to know how much throttle is being applied/used. These types of functions can't be separated to run right.
Launching!
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If all you are trying is open a throttle body with a pedal then all you need is pedal, throttle body and a cheap ecu (e67 $30). Think key on w/o engine running.Give me a call so we can see what your app is. Steve 909 910 3867
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Verdad Gallardo There is also a big difference, in terms of hardware, between the gen 3 and gen 4 implementation of DBW.
Andrew
Will the e67 keep the DBW "alive" indefinitely if the engine is not running? I ask because the Holley Dominator will turn the DBW off if it doesn't see an rpm signal after about a minute of ECU "on" time.
Andrew
On The Tree
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From: North Vanacouver , BC
i know gen3 will work indefinitely but the blade will go into resting position if it doesn't see a throttle change for 10-15 secs . I don't know how the idle control would work . Depends on what OP is trying to accomplish .
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From: PDX-OR-USA
What your talking about used to be called a "repeater" circuit.
It can be analog, BUT (Big issue) if it gets out of sync there is no fail safe, your just stuck with the result.
Its part of why BMW for a time had 2 throttle plates in the throttle body, one was the regular DBW the other
was for failsafe and overrun control. (It was pretty much a on/off kinda thing on the one I had.. )
It can be analog, BUT (Big issue) if it gets out of sync there is no fail safe, your just stuck with the result.
Its part of why BMW for a time had 2 throttle plates in the throttle body, one was the regular DBW the other
was for failsafe and overrun control. (It was pretty much a on/off kinda thing on the one I had.. )