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 Post subject: Best part of the Cadillac ELR is the software?
PostPosted: Fri Jan 03, 2014 10:59 am 

Joined: Wed Oct 17, 2012 4:24 pm
Posts: 34
I found this quite interesting and I wanted to share this with the ELR forum.

An article from ChargedEVs magazine talks about how Cadillac engineers have basically left the hardware the same as in the Volt, but they have significantly upgraded the software.

Some of the changes include adding harmonic frequencies to boost performance out of the same electric motor.

“We upgraded everything,” Tim Grewe, Cadillac ELR powertrain Chief Engineer

Cadillac also pushed the envelope with the battery pack in the ELR by controlling it more precisely to allow lower minimum state-of-charge a lot quicker.

“If you get a big tip in transient response where you want to pull 130 kW out of the battery,” explained Grewe, “we now have the dynamics in the real world about how that’s going to happen, so we can tune the controls to get 130 kW, which is the cell manufacturer’s recommended limit. We can do that with precision through all of these advanced controls. Before, we wanted to make sure we had a little bit of design margin, so the power limit in the Volt is about 110 kW.”

To read the full magazine article, visit this link ... -software/

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