3 ms·
Other 'defeat device' cases from other manufacturers have been software related, and down to the fact that the system only puts effort into reducing NOX emissio
by londons_explore 3y ago
Other 'defeat device' cases from other manufacturers have been software related, and down to the fact that the system only puts effort into reducing NOX emissions when under test conditions. When under typical use conditions, instead the engine prefers high power output and efficiency, and pumps out 10x or more NOX than allowed.
A little like students who cram a subject just before the test and then forget it all afterwards.
In both cases, there was no requirement to have all the knowledge/have low NOX emissions outside the test - but regulators kinda assumed that they would.