30% is an extremely steep hill (eg. there are only 4 roads in San Francisco over 30%). Assuming our SOC is not too high, I'm pretty sure we get 4 circles simply by letting up on the accelerator on our 10% downhill, but I'll double check to see whether one needs to 'trigger' that by touching the brake.IBELEAF wrote:Something I noticed while driving on ECO mode while going down the hill (about 30% grade) and let regen do the braking for you, it will be using 3 regen circles, if you press break and release it will stick to 4 regen circles. It's reproducible every time. Anyone else noticed that?
Hm, maybe I' am exaggerating on the steepness %, could be 20% but it's definitely not extreme and just letting up accelerator results in 3 circles. Actually, you don't even need to be on the hill, I am reproducing this even when taking an exit on the freeway and simply breaking once and the regen sticking to 4 circles afterwards vs 3 circles if I let it coast. I'll see if non ECO mode has the same behavior.wsbca wrote: 30% is an extremely steep hill (eg. there are only 4 roads in San Francisco over 30%). Assuming our SOC is not too high, I'm pretty sure we get 4 circles simply by letting up on the accelerator on our 10% downhill, but I'll double check to see whether one needs to 'trigger' that by touching the brake.
juanmax wrote:Hello community,
I am new here but have several years in Automotive development and hybrid-E/Cars. I am waiting for my Leaf to arrive too
Just wanted to say that the amount of regen (not sure about what Nissan makes) is normally vehicle speed dependent just because of the power relation to speed. (power = torque x speed)
If the electromotor produces,lets say ,a regen torque of "-50 Nm" constantly when we lift the "gas" pedal off, then the power of our regen will vary with the speed of the vehicle. Since I "suspect" that the rings in the Leaf display are related to power, this explains why in Eco mode, at different speeds you see diferent "regens". Howere, driving is a nice sensation to have a constant regen torque, since what you feel is acceleration, and acceleration is directly proportional to torque.
This is another nice thing about E-Car, the ability to produce a "simulated drag" which is constant! Unlike an ICE which will be near zero at 1000rpm...
Sorry for my english.
I don't know about the 2012, but my seat-of-the-pants feel, as well as my downhill experience, tells me our 2007 Prius has more regen in "B" than the LEAF in "ECO". Well, at least until the Prius battery is full going downhill. After that you have no regen and a screaming engine.Mx5racer wrote:I feel just the opposite and wish that the Eco on my 2012 Prius would slow it down by lifting off the gas like it does in the Leaf. With the Prius I have to move my foot to the brake pedal much more than in the Leaf.
Total nonsense. Push the accelerator to the floor and the LEAF jumps just as fast in "ECO" as it does in "D". There is no "limitation", only a different mapping for a partially depressed pedal.Mx5racer wrote:I do wish that I could have the regen on the Leaf without the acceleration limitations.
I read on the Prius forum that B mode for the 2012 creates less regen and uses more engine braking?planet4ever wrote:2007 Prius has more regen in "B" than the LEAF in "ECO".
I knowplanet4ever wrote: There is no "limitation", only a different mapping for a partially depressed pedal.