0-50 MPH EV Acceleration Videos

Regen is actually bad for efficiency, unless you have to go down a hill or if you have to Brake to come to a stop.

You get some Regen when you lift off the Gas and more when you press on the Brake past the Glide point (no power arrows). And you get even more Regen as you press a little harder on the Brake, until you press hard enough to get Max Regen and then Mechanical Braking.

 

Most battery systems have a charging efficiency and a max current limit. If one charges too slow you loose (but in lithium that is really really slow) but if you charge at very fast high-rate more charge is lost as heat. So there is an efficiency of the regen charging in any system. Would need to know far more details to know where is the optimum speeds and what is limiting the losses now.

Any one know specs on the PiP's battery maximum C rate for charging? With that can guess-timate the charging efficiencies and see if it is the actual regen system providing power, or the battery absorbing it that is limiting things.

 

I wonder if the "estimator" will also end up w/the nickname that the Distance To Empty (Nissan parlance) that the Leaf has: GOM (Guess-O-Meter).

Many folks on MNL are unhappy w/the way their GOM works and how it can create unnecessary range anxiety. All they've got is a 12 bar digital indication of SoC which isn't granular enough (don't know if you're at the top, middle of bottom of a bar) and a GOM that bases its estimate on a fairly recent driving history (last 5 minutes?).

Example problem (of many): if you go up a hill, the GOM value will drop sharply, the Leaf may even audibly complain that it's low on battery (which might scare a passenger who's never experienced it, become a "problem" for that passenger, which could then become a nagging/worried passenger) even though you know you can make it, since you know you're about to crest the hill and go down a long grade...

They want a SoC meter that tells them % (more granular that the 12 segments) but are ok w/leaving the other indicators there, like the GOM.

Back on topic: It'd be cool if we saw some 0-61 or 62 mph, acceleration in EV videos on the production PiPs.

 

That electric whirring sounds so cool! Like a plane engine.

 

When accelerating in EV Mode, it is easier to control throttle and thus keep the engine off if you have the car in Eco Mode too.

 

hah, well, for some of us, it's harder because the acceleration is so damn slow we end up mashing the pedal to the floor

 

Damn gorillas!