Quote:
Originally Posted by Franco Cozzo
This DPF and SCR schmozzle trying to get them through Euro V/VI causes half the reliability dramas.
Wonder if the problems are because just the weight of the vehicle itself and the suburban driving isn't enough load on it to get the exhaust hot enough without it having to do lots of regenerations - where as if you use it like a commercial vehicle for work they don't flog out.
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I think the problem is with the existing strategy that most companies have adopted to meet regulations.
What Bosch found is that all the elements used can be kept but the engines and exhausts have to run
hotter than they do now and that gives them the heat to light off the DPF and keep NOX under control.
The irony is that the new Bosch strategy allows diesels emissions to be dramatically reduced
to levels thought impossible about three years ago when Euro were plotting the demise of diesels.