Bosch Didn't Supply Cheating Software on Dirty Diesels
A former federal official and the Environmental Protection Agency said that German supplier Bosch didn’t supply Volkswagen — or other automakers — with cheating software, implying that Volkswagen engineers acted alone in deceiving emission tests, Reuters reported (via Automotive News).
According to the report, Bosch supplies the engine control management unit for most four-cylinder diesel passenger cars, including Mercedes-Benz, BMW and others. Both BMW and Mercedes have said their cars do not have software that cheats emission tests.
According to the report, the U.S. House Energy and Commerce Subcommittee on Oversight and Investigations will consider recommending changes to the way regulators test emissions to more closely match real-world conditions.
Bosch said Tuesday that it supplied the units to automakers but “how these components are calibrated and integrated into complete vehicle systems is the responsibility of each automaker,” Reuters reported.
Last month, a report said that Bosch warned Volkswagen of its illegal software in 2007. The supplier didn’t comment on the report, citing contractual privacy with the automaker.
A former EPA official told Reuters that software to detect EPA test cycles would require significant effort by an automaker.
“It is highly unlikely that this additional software is in any computer that does not have a defeat device, as the code requires significant additional resources to write and it would be of no use unless a defeat device was being used,” John German, a former EPA official and a senior fellow at the International Council on Clean Transportation, told Reuters.
Not only is the defeat device not hardware, in VW's case it's the absence of hardware that everyone else uses. VW's Clean Diesel claim was that they didn't need the urea exhaust treatment system to get all of performance, mileage and low emissions on the 2.0L TDI. Now that turns out to be untrue. If they have to add the urea system hardware it's going to be especially costly. If they do a software only fix then one or both of performance and mileage are going to suffer.
John German is correct. All he is saying is that it is very unlikely the defeat code (*) would be included in any ECM that doesn't need it. (*) the defeat code is considered a defeat device by the clean air act. The car maker is required to identify all AECDs whether they are hardware or software.
I smell complicity and I see posturing. We're gonna need a lot of popcorn before this one gets put to bed.
There's an awful lot of space between the automaker is responsible for integration and not supplying the xode which has no other use than cheating a test. Someone hired a lobyist level pr mouthpiece. I will be shocked if this isn't shared between at least these two firms.