Well, I just got home after my car was parked outside in -18 to -21C for nearly 10 hours.
I wasn't expecting the battery to be locked out so easily (people quoted 'days' for this kind of thing to happen), but instead of normal ERDTT to greet me (which I hate enough as it is), the car hesitated for a second when starting, then put me straight into gas mode.
I've been doing some OBD logging to see how ERDTT really works, so I have some data points.
When I parked the car at 0845, outside temp was -18c, battery temp was 16C (I didn't have this in the logged PID list, it seems. It was 16C when I saw the screen in my driveway, I think it's safe to say the computer would have maintained that temp while driving 8 minutes.)
Now that I added battery temp to the logging list, I can tell you the battery will be locked out and you have to use engine when battery is -10C or colder (possibly slightly above this threshold - it never released this mode even at -8).
When I started my car to head home it was 1815, or 9.5h later. It was -21C on the dash display. The temp never broke -18, it actually got colder as the day progressed.
The battery only warmed to -8C by the time I got home, and it was still in pure engine mode.
The engine was not running in typical buffer mode, it was running similar to a regular ICE, in step with accel rate. There was minimal buffering, in that it seemed to still use the battery, but very gently. It wasn't a direct match between pedal and engine, but pretty close.
The only option for mode on the display was Normal and Sport. Hold and Mountain were greyed out. (Not sure why, as it was essentially in Hold mode?)
By the time I got home, Mountain was now an option in the display. Not sure what changed that suddenly made that a viable option.
Regen in L mode felt pretty much like D. Perhaps ever so slightly stronger. But essentially non-existant.
When braking, it appears regen never exceeded 18kW
Accel never exceeded 48kW (probably the 55kW limit, but I never pushed it)
Oh, and fuel economy was absolutely terrible.
I wasn't expecting the battery to be locked out so easily (people quoted 'days' for this kind of thing to happen), but instead of normal ERDTT to greet me (which I hate enough as it is), the car hesitated for a second when starting, then put me straight into gas mode.
I've been doing some OBD logging to see how ERDTT really works, so I have some data points.
When I parked the car at 0845, outside temp was -18c, battery temp was 16C (I didn't have this in the logged PID list, it seems. It was 16C when I saw the screen in my driveway, I think it's safe to say the computer would have maintained that temp while driving 8 minutes.)
Now that I added battery temp to the logging list, I can tell you the battery will be locked out and you have to use engine when battery is -10C or colder (possibly slightly above this threshold - it never released this mode even at -8).
When I started my car to head home it was 1815, or 9.5h later. It was -21C on the dash display. The temp never broke -18, it actually got colder as the day progressed.
The battery only warmed to -8C by the time I got home, and it was still in pure engine mode.
The engine was not running in typical buffer mode, it was running similar to a regular ICE, in step with accel rate. There was minimal buffering, in that it seemed to still use the battery, but very gently. It wasn't a direct match between pedal and engine, but pretty close.
The only option for mode on the display was Normal and Sport. Hold and Mountain were greyed out. (Not sure why, as it was essentially in Hold mode?)
By the time I got home, Mountain was now an option in the display. Not sure what changed that suddenly made that a viable option.
Regen in L mode felt pretty much like D. Perhaps ever so slightly stronger. But essentially non-existant.
When braking, it appears regen never exceeded 18kW
Accel never exceeded 48kW (probably the 55kW limit, but I never pushed it)
Oh, and fuel economy was absolutely terrible.