PEM, Motor, Battery Temps - Why does the motor hold a higher temp just sitting?

[wiztecy]

So I've been observing my Temps on the OVMS and trying to make an understanding of the motor temp when the car's been sitting. My Roadster has been sitting over the weekend, haven't taken it out where my SOC was at 50%. I'm charging the Roadster right now and I see the following temps:

PEM - 38C
Motor - 60C
Battery - 16C
Ambient - 28C

The the nights have been dropping down to 7C.

Why does the motor show such a higher temp? Is it being warmed up for some odd reason? I've been making this observation for a while and even when I'm not charging, that the motor holds a way higher than ambient temp. The motor is steel/aluminum/alloy, I'd think it be really close to ambient if it hasn't been up and running for a few days. It also sits below the PEM so no heat is rising to it.

Any clues?

 

[doug]

What VIN do you have? Roadsters 1.5 use the motor has an inductor in the charging circuit. You could be seeing Joule heating in the motor coils.

 

[wiztecy]

#268 which is a 1.5 model. Thanks, makes logical sense now