[jceedv]

Just had my first "long"(more than 2 - 5 miles) drive and through a mountain pass and noticed that my estimated range did not go up on the downhill. This is a fairly common route for me, and on my Clarity PHEV, I have seen as much as 2 mile added to the range on this specific span of road. Instead, the mile estimate was "stuck" on 48 for about 4 miles, lol

 

[seasidebaz]

That happens when you are regenerating at the same rate as you are discharging I believe

 

[Milkfloat]

The numbers are all too small to attach much significance to them. Try the same route again but set cruise control to take away the right foot variable.

 

[h5n1xp]

Worth checking that you had full regen mode enabled? (Left paddle)

 

[jceedv]

That happens when you are regenerating at the same rate as you are discharging I believe

In this case, I should have (and likely was, in light of the "stuck at 48 for 4 miles) regenerating more than what I was using due to the slope

Worth checking that you had full regen mode enabled? (Left paddle)

Yes. With slight differences, the paddles work fairly similar to my PHEV so was definitely on Full regen (Double solid down triangle)

Maybe I should have been more clear. When I said the mileage was stuck at 48 for about 4 miles, what I was trying to say is that while the number did not change (i.e. go Up), it did generate enough energy back to the battery that it took a while for it to register enough loss to drop from 48 miles - as in driving another 2+ miles on a flatter slope before it went down to 47

 

[seasidebaz]

I haven't found a hill steep enough yet to maintain speed at full regen without touching the pedal (which i think also causes the brake lights to come on?) so I'm guessing you had the accellerator pressed to overcome this - which means your power / charge gauge would be only slightly into the charge section so probably balancing your usage. As other people have said on here rather than whacking it on full regen constantly, use paddle-only driving when going downhill to maintain speed and leave the pedals well alone

 

[jceedv]

I haven't found a hill steep enough yet to maintain speed at full regen without touching the pedal (which i think also causes the brake lights to come on?) so I'm guessing you had the accellerator pressed to overcome this - which means your power / charge gauge would be only slightly into the charge section so probably balancing your usage. As other people have said on here rather than whacking it on full regen constantly, use paddle-only driving when going downhill to maintain speed and leave the pedals well alone

OK Not really addressing the question, lol, but no I was Not trying to maintain speed. I was decelerating while going downhill, intentionally with the paddles instead of the breaks

Not asking how to use paddles or breaks... Asking if anyone has seen the meter go Up due to regenerated energy. I'm new to MX30 but have owned a Clarity PHEV since 2018 that uses similar technology

 

[seasidebaz]

Oh sorry in that case yes I have - did a 4 mile round trip the other week and ended up 5 miles and 3% more battery than when I set off initially. May be more pronounced at lower SoC - think I started around 28% / 35 miles and got home with 31% / 40 miles

 

[Milkfloat]

Yes, lots of hills where I live and I see the %SOC go up on the longer downhill stretches. I have little basis for this assertion but it is as follows. The power consumption meter has 12 segments and the maximum motor power is 108kW. It would appear logical that each segment is equivalent to 9kW. Now the recuperation gauge only has 6 segments. If logic holds then the maximum regeneration energy is 54kW. However, on a reasonable downslope, regeneration might be 2 units or 18kW and that would equate to 1% state of charge/minute. At 30 mph, in 1 minute the car travels 0.5 mile. I hope that puts some perspective to how much you might recuperate on a downhill road. As I suggested, try cruise control, let the car adjust the braking via recuperation and see what happens but if your hill is less than 0.5 mile long, you may see no change in the SOC. The Clarity has half the battery size of the Mazda so if the car recuperated the same energy, the SOC would rise by 2% rather than 1%.

 

[jceedv]

OK thanks, both!

 

[jceedv]

Update: Have driven this route (as mentioned, pretty regular, non-commute, route for us) another 3x since last post and 2x on another route that's an even steeper downhill (Westbound I-80 entering Vallejo for those familiar with the area) and mile estimate definitely does Not "go up" lol.

For the original route (Highway 4 from Concord to Richmond bound), estimate tends to be "stuck" on a specific mile for about 3 - 4 miles My last drive, iPhone Maps estimate to destination went from 9.6m to 6M before the car's remaining miles charge estimate changed