Synergy drive technical questions...

[Highly ImPriused]

Originally Posted by JimboK

I had forgotten about this, but in researching something for an unrelated thread I rediscovered this, in case you're at all inclined to a DIY hack.

Which is great, but too much work for probably 99% of drivers to consider (myself included). Shouldn't there be a signal in the CAN that indicates when there is hydraulic pressure to the friction brake system? If so, it would seem simple enough (for someone who knows what they're doing -- again, not me) to code an XGauge (or whatever CanView uses) to pick up on this and display a simple on/off message. That would be very useful. I try to keep braking regeneration to about 60 amps, but as mentioned above, it's very easy to exceed that at higher speeds. I wonder when I'm seeing 90+ amps if there is also some friction braking being done. I expect there is at times, but it would be nice to know a what point that actually occurs and to be better able to avoid it in future situations.

[JimboK]

Originally Posted by Highly ImPriused

Which is great, but too much work for probably 99% of drivers to consider (myself included).

Me too!

Originally Posted by Highly ImPriused

Shouldn't there be a signal in the CAN that indicates when there is hydraulic pressure to the friction brake system?

If there is, no one has reported finding it, AFAIK. There is a CAN data element for brake pedal position, but of course it tells you nothing about whether a given position engages the friction brakes.

This got me to wondering about the relationship between pedal position and regeneration. I threw together a chart from my CAN-View data and, to avoid straying too far off-topic here, posted it in my CAN-View charts thread.