iForce Max Creeping forward after stopping

[rchrds]

Utilizing the brake “Hold” function at traffic lights eliminates this from occurring.

It actually doesn't because it happens before the hold logic is activated.

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[inlandsmog]

 

[StreeTaco]

Yes, but that doesn't make it right. To me as an ASE L1, L2, L3 Master Technician, this is a safety issue and needs to be properly diagnosed, reported and possibly issue a safety recall. #NHTSA

 

[trailhunger]

Yes, but that doesn't make it right. To me as an ASE L1, L2, L3 Master Technician, this is a safety issue and needs to be properly diagnosed, reported and possibly issue a safety recall. #NHTSA

This a software or hardware problem in your opinion?

 

[Baltimore]

operator error is my current vote

 

[mattski2112]

Hybrid owner as well. Only 1400 miles on the odo, but I’ve not experienced a similar behavior. You can bet I’ll be paying more attention, though.

 

[inlandsmog]

This a software or hardware problem in your opinion?

Software.....

 

[inlandsmog]

operator error is my current vote

Haha!

 

[Swizzard24]

I noticed a creep forward when OR is on battery then engine kicks in with a lurch foward. Scary and alarming.

 

[SonicTH]

I’ve noticed it also.

2700 mile TH, not in the TSB recall. Doubt this is transmission related anyways. Honestly, feels more like a calibration issue… I had also blamed/doubted my braking consistency at times— till this post at least.

Come to a stop, ICE turns off & battery motor only on, starts to creep forward and i need to apply additional brake pressure.

Has happened on more than one occasion… no surging in my case though, just a roll.
Has caught me off guard though in a couple drive thrus.

My best guess? The ICE on idle isn't putting out the same amount of TQ as the electric at the same brake position.

The electric motor/electric only map kicks on … requiring more brake input due to the inconsistency in TQ output.

For reference sake—My other cars are an AP1 s2000 and a Golf R on st-60 stoptechs. I mention this because those brakes are sensitive by comparison, thus the assumption (and still might be) of not applying enough pressure.

I also think the brakes aren't great anyways on this thing, but again, my basis for comparison is skewed and limited, so I give it a pass — my wife's palisade does inspire more confidence though.

 

[trailhunger]

I notice a little* wonkiness on rare occasion in ECO Mode. I think there's something up with ECO mode, uses the turbo a lot, there's some serious tuning & efficiency parameters that could be addressed with this mode, especially on the hybrids.

Much smoother drive and cleaner at/off the stop light in Normal & Sport.

 

[inlandsmog]

I’ve noticed it also.

2700 mile TH, not in the TSB recall. Doubt this is transmission related anyways. Honestly, feels more like a calibration issue… I had also blamed/doubted my braking consistency at times— till this post at least.

Come to a stop, ICE turns off & battery motor only on, starts to creep forward and i need to apply additional brake pressure.

Has happened on more than one occasion… no surging in my case though, just a roll.
Has caught me off guard though in a couple drive thrus.

My best guess? The ICE on idle isn't putting out the same amount of TQ as the electric at the same brake position.

The electric motor/electric only map kicks on … requiring more brake input due to the inconsistency in TQ output.

For reference sake—My other cars are an AP1 s2000 and a Golf R on st-60 stoptechs. I mention this because those brakes are sensitive by comparison, thus the assumption (and still might be) of not applying enough pressure.

I also think the brakes aren't great anyways on this thing, but again, my basis for comparison is skewed and limited, so I give it a pass — my wife's palisade does inspire more confidence though.

Exactly! Very well explained. I also thought that I needed to learn how to brake properly.
I have also noticed lately a harsh 1-2 shift when cold.

 

[tacorancher]

What is baffling is that there are folks with non hybrids claiming the same behavior @Gfenza89

 

[SonicTH]

Exactly! Very well explained. I also thought that I needed to learn how to brake properly.
I have also noticed lately a harsh 1-2 shift when cold.

Sigh - sadly, I can report a similar type of shift behavior for a bit when cold. As in the other case, doesn't feel broken. More along the lines of a calibration issue.

I suspect the electric motors layout in the transmission is behind this stuff - it’s a unique configuration and I wouldn't be surprised if it’s involved with both these issues.

If it’s manifesting in non-hybrids though, you can forget everything I’ve said and consider me as clueless as the next guy.

 

[inlandsmog]

I notice a little* wonkiness on rare occasion in ECO Mode. I think there's something up with ECO mode, uses the turbo a lot, there's some serious tuning & efficiency parameters that could be addressed with this mode, especially on the hybrids.

Much smoother drive and cleaner at/off the stop light in Normal & Sport.

I find Sport mode is smoother, Eco seems to stack the shifts.

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