Hi
I know only general stuff about modern DFI. I have Jeff Hartmann's book but it's too specific, "teaching by example", but wrong examples.
I'm using a
single Delphi injector from a 2007 Renault Clio 1.5 L diesel turbo in my attempt to build a
single cylinder 2 stroke diesel (to
test an idea - see earlier posts).
Q1 I presume the Clio is 12 v -
what current opens the solenoid? Approx.
Q2 Presumably the HP pump has some sort of by-pass to avoid excess pressure (eg a wannabe rally driver goes down a gear at high road speed and takes his/her foot off the accelerator, meaning no juice needed but pump being driven very fast - does the pump run up to ~1800 bar and then feed back to tank, or what?).
Q3
For my use, idle and full throttle only (let's say),
could a simple ECU be built : to sense crank position, inject boluses of fuel, with the control being by altering number of boluses, or timing of boluses. We've got about 7 microseconds to get the fuel in, but we hardly need any (350 cc single, boost, 1 bar gauge).
(Air mass flow would not be worked out - just alter fuel burn empirically for optimums).
Any ideas here???
Malc
