On 8/24/21 2:56 AM, Martin WINLOW via EV wrote:
In an EV, much of the braking in stop/go energy can be recovered by regenerative braking, thus the ’shed mass’ argument is severely undermined. The same applies to hilly terrain.
I can't let this statement go unremarked as it propagates a common misconception. Regen captures some of the power lost from braking or going downhill, but the efficiency is probably 15-25% of the total energy used to accelerate or climb the hill initially. So it re-captures "much" more than an ICE vehicle does using mechanical brakes that drop the energy as heat, but it is not a magic energy recovery system. (Unless you have your vehicle towed to the top of a hill, all of the energy re-gen captures came out of your vehicle on the way up the hill or acceleration curve.)
Coasting without power is MUCH more efficient than stopping with regen and then re-accelerating in a BEV (or an ICE for that matter).
Jay _______________________________________________ Address messages to [email protected] No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
