Instead, there is a tachometer-like dial that, in some sense, indicates the power delivered.
BHPian electric_eel recently shared this with other enthusiasts.
On the Nexon EV that I drive, the tachometer does not exist. Instead, there is a tachometer-like dial that in some sense gives an indication of the power delivered. This is infinitely more useful information for driving and with a single transmission setup in most EVs, the motor RPMs are not a very interesting number. But for “academic” reasons is there a point in having an RPM display in an EV? Let me know.
Just FYI, my previous drive was a Zen petrol which is now 20 years old and the only tachometer it has is the driver’s ear, but boy what fun it is to listen to the engine note and shift gears particularly when rev-matching and down-shifting.
Here’s what BHPian rsidd had to say about the matter:
The EV motor drives the wheels directly, there is no transmission, so the RPM is just some constant times the speed. You can calculate the constant from the wheel diameter. So, no, it’s not useful or interesting.
Here’s what BHPian SKC-auto had to say about the matter:
Since the motor is always in gear with the wheels, while coasting say at 100kmph, the motor is off, but the rpm is still high, which makes no sense.
Even for any calculations, speed is the only important parameter.
Here’s what BHPian Cresterk had to say about the matter:
No, it makes no sense to have a tacho in EVs.
On hybrids though, I wish they had a tacho since it has an engine. I would have liked to know what rpm my Hycross is running.
Here’s what BHPian Shresth_EV had to say about the matter:
I would love to have a power dial with real markings like old Tesla Model S dials instead of the “Apple performance graphs” we get right now which only tell a relative fraction of the total power being used.
I think the MG has the volts and amps count mentioned but I’d like to see a real-time dial (as an option to be added on the digital cockpit not permanent).
Would open a new world of hypermiling where the car tells you exactly how much continuous power the motor gets (say 15kW at 100kmph) so as to make range assumptions more accurate and easier.
For instance, 15kW at 100kmph means 15kWh for 100km range or 150Wh/km.
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