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Guest Message by DevFuse

Get you C-MAX Energi Registered in the official Ford Authorized Registry. More here.


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C-MAX HVB FOR HYBRID & ENERGI


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22 replies to this topic

#1 OFFLINE   aymandabas

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Posted 08 March 2017 - 10:47 AM

Hi
I would ask if The HVB Longevity in Ford C-MAX energi will be better than hybrid or Vice Versa ??







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#2 ONLINE   rbort

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Posted 08 March 2017 - 11:55 AM

Its the same, batteries have a limited life and charge cycles.  Hybrid battery tends to never be completely full or empty so it might have a slight advantage.  

 

-=>Raja.


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#3 OFFLINE   aymandabas

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Posted 08 March 2017 - 12:27 PM

Thanks rbort

#4 OFFLINE   ptjones

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Posted 08 March 2017 - 02:41 PM

With 149k mi. I can tell that my HVB capacity is down some when going down hill, the HVB charges up faster.  The total range I have seen is 28-80%, usable 32-65% normal, higher numbers are caused from HVB cooling off after stopping at home over night with 55-60% HVB. :smile2:  It hasn't hurt my mileage at all.

 

Paul


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#5 OFFLINE   dtvconsult

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Posted 22 March 2017 - 07:42 AM

Changes in battery capacity seem more pronounced with a Plug-in hybrid.  The total C-Max Energi HVB capacity when new is 7.6 KWh.  It is my understanding that the last 0.500 KWh is never used. That is to protect the battery pack (you shouldn't discharge Lithium Ion batteries to zero). 

 

It is also my understanding that the car switches to hybrid mode when the capacity drops to about 2.0 KWh. That allows 1.5 KWh for hybrid mode and 0.500 KWh for protection of the battery.  That means that the pure electric range comes out of the first 5.6 KWh of capacity.  

 

Losses in capacity come off of the part of the HVB that supplies the pure electric range, right off of the top.  

 

For instance:  If the total HVB capacity drops by 30%, that 30% comes off of the pure electric range.  It's impact on the pure electric range is a decrease of 40% of pure electric range capacity.

 

The HVB capacity for hybrid use and protection is not impacted until there is no pure electric range left.


Edited by dtvconsult, 22 March 2017 - 07:45 AM.


#6 ONLINE   rbort

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Posted 22 March 2017 - 04:22 PM

Sorry, that is purely an incorrect statement...

 

 

 

The HVB capacity for hybrid use and protection is not impacted until there is no pure electric range left.

-=>Raja.


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#7 OFFLINE   ptjones

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Posted 23 March 2017 - 06:13 AM

I know that my Hybrid's capacity has gone down with 150k mi. where the practical use is 38-65% SOC. That hasn't change so I'm thinking the total capacity has decreased and my 38-65% SOC  is less wattage now.  And my MPG's keep getting better. :smile2:

 

Paul



#8 ONLINE   rbort

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Posted 23 March 2017 - 06:18 AM

Paul,

 

Even though the range is still the same (38-65 or whatever you see), what happens is that the battery will drop quicker when you use it.  Its because the cells are older and may be puffed or just have a higher resistance they don't hold as much usable charge.

 

-=>Raja.


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#9 OFFLINE   ptjones

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Posted 23 March 2017 - 12:22 PM

Paul,

 

Even though the range is still the same (38-65 or whatever you see), what happens is that the battery will drop quicker when you use it.  Its because the cells are older and may be puffed or just have a higher resistance they don't hold as much usable charge.

 

-=>Raja.

Atleast it hasn't hurt my gas mileage. :smile2: EV 50% of the time.

 

Paul



#10 OFFLINE   aymandabas

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Posted 23 March 2017 - 01:28 PM

If we can get 20 mile or more per Charge so whats wrong with KW meter and why its effected and getting down in the hot summer days

#11 OFFLINE   Perry Knopp

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Posted 25 March 2017 - 06:02 AM

 I suppose this is random and not really topical but..........as I'm sure longer term owners are already fully aware, warmer weather is great. My 20.1 mile trip to work would barely get me there on a charge (never without going into Hybrid mode) or come up just short.

 

 60 degrees out this morning and I make it with battery to spare. On return trip (not charged) I was getting 40-44 mpg. Last night just above 70 and I got almost 48 mpg.

 

 even if my charge capacity went kaput, I'm happy with mid to upper 40's considering it's a decent sized highly optioned car.


Edited by Perry Knopp, 25 March 2017 - 06:04 AM.


#12 OFFLINE   ptjones

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Posted 25 March 2017 - 04:41 PM

It would be nice to see if someone would put Grill Covers on to see if it helps aerodynamics to increase range in EV only. :smile2:

 

Paul



#13 ONLINE   rbort

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Posted 26 March 2017 - 07:27 AM

Paul,

 

Donate a set to a willing party  :smile2:

 

-=>Raja.



#14 OFFLINE   NedB

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Posted 26 March 2017 - 07:55 AM

Hmmm two sets... one for the resident hypermiler expert... another for everyday driver ... both with Candy blue cars!😉😁

#15 OFFLINE   bdginmo

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Posted 26 March 2017 - 08:32 AM

I agree with rbort. Hybrids probably have a slight advantage in HVB longevity because they're SoC is more tightly controlled. On the flip side the plugins work perfectly fine in hybrid mode and so even if you do lose capacity to the point where charging isn't worthwhile you can always just run in hybrid mode. Complete HVB failure seems to be very rare. In fact, I think I've seen more catastrophic ICE failures than HVB failures and the ICE can be just as much to replace as the HVB especially if it's the smaller hybrid HVBs.


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#16 OFFLINE   ptjones

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Posted 26 March 2017 - 08:41 AM

I sold a set to chyrssa over a year ago it turns out and he said the results were Outstanding! :smile2: I forgot he PMed me back, Thanks again on the comment, chyrssa.

 

Paul


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#17 OFFLINE   Perry Knopp

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Posted 26 March 2017 - 11:32 AM

 What needs compared is the difference in cold and warm weather. If it helps the ICE to warm up faster in cold weather it's naturally going to help.


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#18 OFFLINE   ptjones

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Posted 26 March 2017 - 03:15 PM

What I was curious about was the aerodynamic improvement without the ICE. :headscratch:

 

Paul



#19 OFFLINE   Perry Knopp

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Posted 26 March 2017 - 03:41 PM

What I was curious about was the aerodynamic improvement without the ICE. :headscratch:

 

Paul

 

 I've read claims to the contrary but I'd bet that given strict controls you would see very little differences.



#20 ONLINE   rbort

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Posted 26 March 2017 - 07:45 PM

Anyway I don't drive my car much past 50mph in EV mode even though it can go 85 so to speak so drag is kept to a minimum.

 

-=>Raja.










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