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Basically, all these solutions are range extenders basing on lower battery current flows (for both directions: drain or charge) and lower energy usage.
It is especially important in Nissan Leaf (both 2012-2016 versions and new 40kWh versions) as Leaf hasn’t thermal management of battery, but of course, it reduces energy usage and battery stress in Tesla too.
Simple like hell: less bi-directional energy flow = less energy converted to temperature = lower temperature of battery = longer battery life. Period.
£579.00 Excl. VAT
Until now all Tesla models except P versions (performance versions) have simple “accelerator pedal (acc) position → power” transition. A position of the accelerator pedal is converted to power demand immediately and almost linearly. This we can see at energy usage panel in the car, and we have verified that also with our laboratory chassis dynos (http://vtechdyno.eu).
This method of power demand control suffers from two negative effects:
Conclusion:
We have prepared an alternative power demand curve (presented as the bold line in the small graph vs. thin line with same colour – factory) that promotes two things: more constant acceleration and more efficiency.
More constant acceleration for a moderate drive is, in my humble opinion, something perfect for Tesla. There is no rapid power demand, and power demand changes in time (as the power is now not constant, but rather torque is more constant). This is visible on the power usage panel.
Remaining for more time in the optimal efficiency area – this is a “side effect”, as we have “constant torque” strategy instead of “constant power” strategy. I cannot directly say whether or not this will extend the range (or maybe a bit) but it should at least give positive effects on a range.
For acc pedal levels over 70% torque demand curve becomes increasingly „constant power” type. For 100% pedal, it is just factory 100% power line, not altered.
Below 20% of acc pedal, I have used less flat torque curves (not shown on the graph) because of the need for a jump start at lights or crossroads.
TeslaChip includes feature of N-mode on demand. While driving in D-mode you can almost remove the leg from acc pedal. TeslaChip will set motor power to zero (0 kWh) so you will roll without energy conversions. This increases efficiency with long distance trips and is good for overall range (autonomy). See how easy is to find exactly zero power usage with TeslaChip:
| Tesla version | 60, 60D, 70, 70D, 75, 75D, 85, 85D, P85, P85+, P85D, P85DL, 90D, P90D, P90DL, 100D, P100D, P100DL |
|---|---|
| Type of TeslChip | Range extender, Range + Power |
| Make | |
| Model |
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