[Ovmsdev] Notifications Framework (subtype and filtering)

Mark Webb-Johnson mark at webb-johnson.net
Mon May 14 08:34:03 HKT 2018


Steve,

I meant from the CAN bus point of view. The original documentation for this had:

ID 100, B1=0x95, B2=0x01 charge mode is “charging”
ID 100, B1=0x95, B2=0x02 charge mode is "topoff"

One of my old can bus dumps (labelled 20120218.charge.topoff.crtd) shows this:

5193698.348 R11 100 95 4 1 64 57 2 E 2
5193706.208 R11 100 95 D A 64 57 2 E 2
5193709.798 R11 100 95 1 5 64 57 2 E 2
5193918.339 R11 100 95 4 9 64 57 2 E 2

(duplicates removed, for clarity)

That is 0x04 -> 0x0d -> 0x01 -> 0x04 (done -> preparing -> charging -> done). No ‘topoff’. In fact a search for ‘100 95 2’ (or ‘100 95 02’) doesn’t match anything in any logs I have.

So perhaps, it doesn’t exist or is a Tesla Roadster 1.5 only thing? Or maybe it is that car automatically tops itself off after 24 hours of being plugged in?

Regards, Mark.

> On 13 May 2018, at 11:45 PM, Stephen Casner <casner at acm.org> wrote:
> 
> On Sun, 13 May 2018, Mark Webb-Johnson wrote:
>> 
>> P.S. For roadster, the topoff is just a different type of charge (I
>> think triggered when you press Top-Off on the in-car control, to
>> top-off an already fully charged battery). So, it occurs at the
>> middle of the charge, just the same as ‘charging’.
> 
> I wouldn't say it is a different type of charge as much as pressing
> the Top-Off button means "try some more".  That button is only present
> when the normal charging has finished and the VDS is still showing the
> charging screen.  The Touch Screen Users Manual says this about the
> message that can appear in the status line at the top of the charging
> screen:
> 
>    Topping Off Charge - Automatic charging is in progress because the
>    fully charged vehicle has been sitting for a while. To maintain a
>    full charge, a plugged in vehicle periodically tops itself off.
> 
> And this about the button:
> 
>    TOP-OFF - You can initiate "top off" charging manually.
> 
> So it really just means to resume charging to fill back to the
> intended level to compensate for charge that has dissipated while
> sitting.
> 
> In the Roadster is there any CAN bus indication when the charging
> process transitions from the full-speed phase to the tapering phase?
> 
>                                                        -- Steve_______________________________________________
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> OvmsDev at lists.openvehicles.com
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