Ofcourse performance can be increasedTuopponen wrote: ↑30. Aug 2019 07:04Very interesting...
I'm just wondering if you or someone has been thinking of some performance upgrades for electric vehicles.
Could it be just so simple that you increase the amount of battery cells in series to increase voltage and then just program the cars EV-system to understand this upgrade. Of course the voltage increase cant't be that big without changing more parts like cables, motors and maybe inverter (not sure what drives the motors).
The motor control systems just might be little bit complex so that this isn't a plug'n'play procedure.
But as always people want faster cars.
But not in that way. The Leaf (and most EVs) are torque controlled. Voltage does not really matter for the power output, it is regulated by allowing a certain amperage to flow to the motor. So to increase power output, you simply modify the message containing the N⋅m demand.
The motor control is much SIMPLER than a traditional ECU controlling an internal combustion engine. So a real easy way to increase the power output of a Leaf is also via a CAN-bride hooked up to the CARcan. A simple program would be to do
if(pedal_pressed => 100%)
power = power+10kW
The next limiting factor is the motor inverter firmware. The maximum rating is 130kW (The leaf runs at 80kW stock).
Oh, and you would also maybe want to upgrade the fuse in the main battery pack at some point
It will be awesome when people actually start getting the hang of tuning electric cars, they are so fricking fast! Even the stock Leaf has 250NM of torque from 0-60km/h, really packs a punch!