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Discussion Starter · #1 ·
There are a couple of high speed corners on a route I typically drive where, if I'm going fast enough, the regen shuts off but without traction or handling control systems activating. Has anyone else experienced this?


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There are a couple of high speed corners on a route I typically drive where, if I'm going fast enough, the regen shuts off but without traction or handling control systems activating. Has anyone else experienced this?


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Yes. I notice it does this if you hit hard bumps, potholes, usually causing the ABS system to intervene. It'll cause regen to back off temporarily.
 

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Discussion Starter · #3 ·
The times it happens for me, I'm pretty sure the ABS isn't activating. They're corners where the apex of the corner is also the vertex in elevation, so that the road drops away as the corner unwinds. It must be something to do with the unweighting at the crest that causes the software to think something imminently bad is going to happen so it cuts regen, but apparently I've been lucky to not reach the threshold where it thinks it needs to apply a brake to prevent a crash.

I'm lucky not to have hit a pothole hard enough to trigger this. Ouch.

Does turning off traction management also turn off the regen cutout? Maybe I'll go out late tonight and give it a try when there's no traffic.
 

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Discussion Starter · #4 ·
Just wanted to follow back on this. Turning off electronic aids (by pressing the two triangular buttons on either side of the semicircular display panel) does not result in the regen cutoff behaving any differently. It still cuts out when it thinks there is about to be a loss of traction. And if I really were at the limits of traction but still in control, the regen cutting out would probably **cause** a loss of traction. Oh well. . .


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If it cuts out when it senses a loss of traction, it makes sense.

In Leafs, the regen braking isn't affected if you lose traction in the snow--it can be dangerous because it's like braking without ABS.
 

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Discussion Starter · #6 ·
If it cuts out when it senses a loss of traction, it makes sense.

In Leafs, the regen braking isn't affected if you lose traction in the snow--it can be dangerous because it's like braking without ABS.
The times it has cut out on me, I don't believe I have actually lost traction. I'm pretty close but I don't feel that transition to sliding, either through the steering wheel or my butt. I'd think the short wheelbase would exaggerate the motions of loss of traction and really make it noticeable.

Besides the fact that it is fun to go fast in such a small car, I'm curious because we'll be driving our Smart around even if it snows, and losing regen, in the snow and in a corner, would be pretty dicey.
 
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