That was a great breakdown, with some vital information for those of us that have no idea what the heck is going on in there. Thanks !Anything orange is high voltage (for first responders)
12v battery and brake master cylinder/reservoir on the far right (in the photo)
Blue fluid reservoir is washer fluid
The coolant reservoirs for the 3 loops are visible (red orange fluid)
AC compressor and hoses on the left.
Center is the usual electronics for an EV (inverter/charger/BMS, etc)
Coolant (GM uses Dexcool which is orange instead of green)Does anyone know what the orange fluid in the translucent plastic bottle near the dash and behind the hood support rod is? Being an ICE driver and totally ignorant of BEV systems, I'm guessing battery temperature regulation fluid?
It's a brave new world out there and I've got a lot to learn.
Many thanks to all of the kind folks on the forum who so generously share their experience and knowledge.
Weight and complexity. Tesla played with a 2 speed for the S, but dropped the idea due to reliability concerns.Pardon another basic question from a newbie.
I wonder why the Bolt and other BEV's use a single speed (transmission?) I've learned that the motors used in EV's make max torque at
0 RPM. Wouldn't a few extra speeds help lower the current draw at highway speeds?
If this has been asked before please direct me to the answer, if possible.
Thx, in advance
That's available torque and power - as in having the "go pedal" mashed to the floor. While a 2 speed tranny might be of some use, the benefits are marginal given the characteristics of electric motors and the added cost, weight and complexity of a multi-speed transmission.Thanks again to DucRider.
I understand the torque curve.
I'm having trouble understanding the decrease in KW (draw) as the speeds increase on the right hand side of the graph.
I'm probably getting dumber quicker than I thought I was.
"Old age is not for the faint of heart."
The chart above shows available power/torgue on the 2013 Spark EV.So 40mph is where we want to drive for optimal speed without draining too much power?