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EV+ mode?


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36 replies to this topic

#21 OFFLINE   Smiling Jack

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Posted 29 April 2015 - 04:52 PM

OK, I'll take a stab. Is it because Ford is tracking the time and location, and attempting EV+ only at final destinations?

 

Close, but no cigar!

 

I have no reason to think that Ford is associating time (of day) with EV+









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#22 OFFLINE   ScubaDadMiami

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Posted 29 April 2015 - 04:57 PM

I drive past the dealership on the way to work. After SW upgrades, I frequently get EV+ driving by.

I've had that same experience, and that was after going to the dealer only one time (and it will be my last--they sucked).



#23 OFFLINE   SnowStorm

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Posted 29 April 2015 - 08:05 PM

Interesting replies from Frank and Steve, but no correct answer yet.

 

(Yes, there is a known, definite, single, correct answer.)

Jack may be smiling but Ford's EV+ programmers are laughing - possibly rolling on the floor laughing - as they read these posts!  They put a bunch of "Easter Eggs" in the software just to keep us guessing!  Endless possibilities:

  • Turn ON going by any Dealer location (but only if you haven't visited one in 30 days!)
  • Turn ON going by Henry Ford's birthplace (but only on his birthday)
  • Refuse to turn ON if the microphone picked up a naughty word during the drive
  • Adjust activity based on phases of the moon, etc, etc

We bought a GPS some years ago that "magically" started predicting where we are going by putting up messages like "3 Minutes to Dump" or "9 Minutes to Southern States" (gas station) or even "250 Minutes to Home".  All without entering any "destination"!  Then I have a co-worker who was in a rental car when it said "Turn Left".  But the turn wasn't really visible so they missed it and went around the block.  GPS says "Turn Left" but again they missed it.  Third time around it comes out with "I SAID Turn Left!"

 

Programmers get bored to.



#24 ONLINE   Plus 3 Golfer

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Posted 29 April 2015 - 09:03 PM

Just ran some tests to see what the maximum distance from my home (straight line distance) when EV+ came on with very high SOC at 95 F ambient, no AC on. Ran tests twice in three approaches to home. Speed limit is 25 mph which I tried to maintain. As I said above there's no way I can get anywhere near one mile from home when EV+ kicks in based on my tests since the SOC in the tests are above any SOC threshold before EV+ would kick in.

Approaching home from North (about 35 feet uphill):
EV Mode begins about one mile from home with SOC = 62.7%
EV+ kicks in at SOC = 53.8% and 0.32 miles from home

Approaching home from South (about 35 feet downhill):
EV Mode begins about one mile from home at SOC = 62.4%
EV+ kicks in at SOC = 59.1% and 0.34 miles from home

Approaching home from East (fairly flat):
EV Mode begins about 3/4 mile from home with SOC = 60.2%
EV+ kicks in at SOC = 58.4% and 0.32 miles from home

A couple more comments. I also circled the block in EV+ mode until ICE on threshold dropped and EV couldn't be sustained to see the SOC when ICE kicked in. To speed the process up I turned AC on maximum to deplete the SOC rapidly. ICE kicked in around a 34% SOC. In a couple tests I saw SOC as low as 33.3 % before ICE kicked on. Normally my SOC coming home from the North is around 50%, the EV+ range is between about 0.21 and 0.24 miles. My guess is that Ford's 1/8 mile range of EV+ uses a very conservative SOC (probably 40% or so). It would be too time consuming (for me) to run more tests trying to get a specific EV+range vs SOC curve.

I forgot to mention that once entering an EV+ location and then leaving the EV+ location during the tests, the exit distance from my home was virtually the same as the entering distance - within a couple hundred feet which leads me to believe that the radius of the EV+ circle range is fixed until one exits the range. Again it would be good to validate this with more tests.

Edited by Plus 3 Golfer, 29 April 2015 - 11:35 PM.

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#25 OFFLINE   stevedebi

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Posted 30 April 2015 - 10:28 AM

Close, but no cigar!

 

I have no reason to think that Ford is associating time (of day) with EV+

Jack,

At some point you are going to have to spill the beans!



#26 OFFLINE   stevedebi

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Posted 30 April 2015 - 10:30 AM

Jack may be smiling but Ford's EV+ programmers are laughing - possibly rolling on the floor laughing - as they read these posts!  They put a bunch of "Easter Eggs" in the software just to keep us guessing!  Endless possibilities:

  • Turn ON going by any Dealer location (but only if you haven't visited one in 30 days!)
  • Turn ON going by Henry Ford's birthplace (but only on his birthday)
  • Refuse to turn ON if the microphone picked up a naughty word during the drive
  • Adjust activity based on phases of the moon, etc, etc

We bought a GPS some years ago that "magically" started predicting where we are going by putting up messages like "3 Minutes to Dump" or "9 Minutes to Southern States" (gas station) or even "250 Minutes to Home".  All without entering any "destination"!  Then I have a co-worker who was in a rental car when it said "Turn Left".  But the turn wasn't really visible so they missed it and went around the block.  GPS says "Turn Left" but again they missed it.  Third time around it comes out with "I SAID Turn Left!"

 

Programmers get bored to.

My all time favorite was about 12 years ago, when Microsoft Excel had a secret key sequence that caused the entire screen to be replaced with a fully animated version of the Star Trek screen, with onrushing stars and everything, where the programmers then scrolled up the screen like credits in a movie.

 

No wonder the darn program file was huge...



#27 OFFLINE   Smiling Jack

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Posted 30 April 2015 - 11:25 AM

Jack,

At some point you are going to have to spill the beans!

 

I was hopinmg to attract a few more guesses.  I will post the answer on Saturday.

 

In the mean time, here is a clue:

 

The failure to turn on EV+ at a frequent destination has something to do with distance.


Edited by Smiling Jack, 30 April 2015 - 11:29 AM.


#28 OFFLINE   kostby

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Posted 30 April 2015 - 11:25 AM

OK, I'll take a stab. Is it because Ford is tracking the time and location, and attempting EV+ only at final destinations?

You mean, uh, the cemetery;)


Edited by kostby, 30 April 2015 - 11:26 AM.


#29 OFFLINE   markd

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Posted 30 April 2015 - 05:32 PM

That would be my guess too, stevedebi, mine always goes in EV+ about two miles from my house.

#30 OFFLINE   stevedebi

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Posted 30 April 2015 - 05:45 PM

That would be my guess too, stevedebi, mine always goes in EV+ about two miles from my house.

Two miles! Mine is only about 1/4 mile from home.



#31 ONLINE   Plus 3 Golfer

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Posted 30 April 2015 - 07:15 PM

That would be my guess too, stevedebi, mine always goes in EV+ about two miles from my house.

Is 2 miles a straight line shot to the EV+ destination? Down hill / uphill? Elevation change?  What is the SOC at the start of EV+ and the SOC at the EV+ destination (or battery symbol % if SOC not known)? 

 

Assume one can get 5 miles kWh at a slower speed. Then, the energy required to go 2 miles = (2 miles) / (5 miles / kWh) = 0.4 kWh on level ground.   SOCMax. = 0.69*1.4 kWh = 0.96 kWh.  SOCMin. = 0.33 * 1.4 kWh = 0.45 kWh.  So, the usable energy from the HVB  is around 0.5 kWh.  

 

I wonder if the algorithm keeps track of continuous distance in EV mode when approaching an EV+ location such that the EV+ range might be incrementally changed based on such distance and the direction of approach.  This would make sense to do especially in the Energi. 



#32 OFFLINE   markd

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Posted 30 April 2015 - 08:20 PM

It has a couple of turns and I never get above 25mph, it might not be related. The ice usually runs in the mornings when I go out for a mile or so. Maybe the fact that it's getting warmer or it is broken in, 7500 miles, but I'm getting a solid 50mpg plus now. A four mile trip to the store averages about 70 mpg!

#33 ONLINE   Plus 3 Golfer

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Posted 30 April 2015 - 08:45 PM

I think speed has a lot to do with it as at 25 mph one likely will get over 5 miles per kWh and it a lot easier to stay in EV/EV+ mode and even go up moderate grades in EV.

#34 OFFLINE   fbov

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Posted 01 May 2015 - 09:31 AM

Remember, EV+ is just an increase in ICE threshold. Speed has nothing to do with it if you keep the throttle below the ICE threshold.

 

The 1/3 mile max distance feels about right, too. I'd love to have it a mile out, but it's never happened. And to Jack's tease, you have to leave the EV+ regions for it to work when you return. I get into EV+ returning from a 4 mile trip, but not a 1 miler to the pharmacy I forgot to hit on my way home. (Where can I get some memory; I seem to have misplaced mine...)

 

Have fun,

Frank


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#35 OFFLINE   Smiling Jack

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Posted 01 May 2015 - 01:27 PM

Remember, EV+ is just an increase in ICE threshold. Speed has nothing to do with it if you keep the throttle below the ICE threshold.

 

The 1/3 mile max distance feels about right, too. I'd love to have it a mile out, but it's never happened. And to Jack's tease, you have to leave the EV+ regions for it to work when you return. I get into EV+ returning from a 4 mile trip, but not a 1 miler to the pharmacy I forgot to hit on my way home. (Where can I get some memory; I seem to have misplaced mine...)

 

Have fun,

Frank

 

Frank has arrived at the correct answer.  And he has also explained the behavior!

 

My office is less than one half mile from my home.



#36 OFFLINE   hybridbear

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Posted 04 May 2015 - 11:56 AM

I see similar EV+ behavior. My office is 1.3 miles from home. I don't drive to work often but I did enough this winter than it shows EV+ for work and home. But usually driving from work to home won't show EV+, only if taking a longer drive and driving near work and then near home will I see EV+ twice.



#37 OFFLINE   shinytop

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Posted 22 May 2015 - 07:27 PM

I retired three weeks ago and today went back to the office for the first time since.  I was surprised that it still went into EV+ mode.








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