DarthSHO Report post Posted April 1, 2020 As the title states all of a sudden the deceleration is different than when i first got the car. It is a 2019 Fusion Hybrid. At first it would slow down alot once i took my foot off the accelerator pedal. Now when i take my foot off the pedal it barely slows down and hesitates to go into regen mode. no codes have shown up but the car is driving differently and it only had 28k miles i got it with 25k. My dad did borrow the car and im not sure if he did something with it that made it learn something new. Quote Share this post Link to post Share on other sites
murphy Report post Posted April 1, 2020 Assuming a 2019 works the same as my 2013 there is no regen when you take your foot off of the accelerator pedal UNLESS the gear selector is in the L position. If it is in the D position regen begins when you put your foot on the brake pedal. The friction brakes do not engage at that point. The pedal has to be pushed a significant amount before the friction brakes take over. L is not a gear. The car doesn't have any gears. It also doesn't have a traditional starter motor or an alternator. Quote Share this post Link to post Share on other sites
mwr Report post Posted April 1, 2020 In my 2015 FFH, lifting my foot off the accelerator pedal does provide regen charging. 1 Sky14FFH reacted to this Quote Share this post Link to post Share on other sites
ptjones Report post Posted April 1, 2020 If you have a OBDII tester like ScangaugeII, it will show regen charging when you let off the gas peddle. If you put the trans in L increases the regen by about one and a half times. 3 hours ago, DarthSHO said: As the title states all of a sudden the deceleration is different than when i first got the car. It is a 2019 Fusion Hybrid. At first it would slow down alot once i took my foot off the accelerator pedal. Now when i take my foot off the pedal it barely slows down and hesitates to go into regen mode. no codes have shown up but the car is driving differently and it only had 28k miles i got it with 25k. My dad did borrow the car and im not sure if he did something with it that made it learn something new. Do you have the trans in L? Paul Quote Share this post Link to post Share on other sites
billford Report post Posted April 1, 2020 4 hours ago, DarthSHO said: As the title states all of a sudden the deceleration is different than when i first got the car. It is a 2019 Fusion Hybrid. At first it would slow down alot once i took my foot off the accelerator pedal. Now when i take my foot off the pedal it barely slows down and hesitates to go into regen mode. no codes have shown up but the car is driving differently and it only had 28k miles i got it with 25k. My dad did borrow the car and im not sure if he did something with it that made it learn something new. Eco mode turned off? 1 dogo88 reacted to this Quote Share this post Link to post Share on other sites
Cobra348 Report post Posted April 2, 2020 My '20 goes into regen mode as soon as I take my foot off the pedal. As I recall, both my '15 and '17 also did that. @billford - eco mode is immaterial in this as I've used both and regen activates when foot off the gas. FWIW, I'm still having issues with EV => ICE changeover. I have to toggle speed control to get EV working when it should. Quote Share this post Link to post Share on other sites
DarthSHO Report post Posted April 3, 2020 No it was not in L the eco mode was off cuz my dad was pushing buttons put the eco mode back on and it was regenerating like it was before but it still hesitates to go into electric Quote Share this post Link to post Share on other sites
ptjones Report post Posted April 3, 2020 I wonder if this is a learned response to EV, You could disconnect the 12v battery and reconnect so it would have to learn all over again. Not sure it would solve the problem, If you could only disconnect the ECM you wouldn't loose your saved settings. Paul 1 Sky14FFH reacted to this Quote Share this post Link to post Share on other sites
JClintB Report post Posted December 13, 2020 Mine 2019 Fusion SE Hybrid goes into regen mode as soon as I stop accelerating, it regens while coasting or braking. Quote Share this post Link to post Share on other sites
BobMarcos Report post Posted January 23, 2021 One of the things changed in eco mode is deceleration regen. Quote Share this post Link to post Share on other sites
Cobra348 Report post Posted January 24, 2021 23 hours ago, BobMarcos said: One of the things changed in eco mode is deceleration regen. How so? My 20 - in Eco mode - regens as soon as I lift my foot. Normal mode as well. As I recall, my '17 was same way. Quote Share this post Link to post Share on other sites
murphy Report post Posted January 24, 2021 My 2013 Energi only regens when the brake pedal is depressed, UNLESS, the shifter is in the L position. Then the accelerator pedal works the same as my Tesla. That is: With foot off of pedal there is max regen. As the pedal is pushed the regen is reduced until a point is reached where there is no regen and no acceleration. It took a long time for my muscle memory to learn where that point is. Continued pressure on the pedal begins acceleration. Quote Share this post Link to post Share on other sites
Sky14FFH Report post Posted February 4, 2021 There's regen on my 2014 when I take my foot off the accelerator pedal. Your 2019 has that "Eco" button correct? Perhaps you had that on before and it is not on now? Quote Share this post Link to post Share on other sites
Sky14FFH Report post Posted February 4, 2021 (edited) Hi Paul. Can you link me or quote me the X-gauge codes to enter into the scangauge that show regeneration charging? Thanks On 4/1/2020 at 5:01 PM, ptjones said: If you have a OBDII tester like ScangaugeII, it will show regen charging when you let off the gas peddle. If you put the trans in L increases the regen by about one and a half times. That's interesting Murphy. So does it feel like there is a lot of "engine braking" as soon as you let off the pedal? I recall when I drove bmws and mercedes for work they'd have huge engine braking which felt really odd at the time. Quote the accelerator pedal works the same as my Tesla. That is: With foot off of pedal there is max regen. Edited February 4, 2021 by Sky14FFH Quote Share this post Link to post Share on other sites
murphy Report post Posted February 4, 2021 It feels like engine braking. It is not severe because the HVB can't accept enough current to provide a lot of braking. The Energi has a 7.6 kWh battery. The Tesla has a 90 kWh battery. It can handle way more current from regen. Quote Share this post Link to post Share on other sites
ptjones Report post Posted February 7, 2021 Here are the codes for ScanGaugeII Battery Pack State of Charge (%) TXD: 07E4224801 RXF: 046285480601 RXD: 3010 MTH: 000A00050000 NAM: SOC Paul Quote Share this post Link to post Share on other sites
2014FordFusionSE Report post Posted February 7, 2021 On 4/1/2020 at 12:54 PM, mwr said: In my 2015 FFH, lifting my foot off the accelerator pedal does provide regen charging. Same with my 2014 FFH. As soon as I lift my foot off the accelerator, the battery icon shows the 'up' arrow indicating that it's charging. Quote Share this post Link to post Share on other sites
MeeLee Report post Posted March 27, 2021 On my 2019, eco mode provides some regen with foot off throttle, and uses about 5-10% of throttle input space for that regen. With eco mode off, the regen is very weak, and mostly like an ice car coasting to a stop. The regen applied to eco mode is perhaps like downshifting a gear on an ice car. It is not maxed out, as you can still press the brake and get additional regen. I think they did it, because brake lights don't come on when throttle is released. Quote Share this post Link to post Share on other sites
