Black & Tan 332iT

[Bry5on]

Cool!! Always had a soft spot for Jaguars. I can't imagine all the double takes in the EV parking spots.

Honestly that’s one of my favorite things. Seeing an angry EV driver that a gas car is hogging an EV spot, then seeing the look on their face when they see it plugged in.

When it’s not plugged in, it’s purposely impossible to tell it’s not an EV. You charge it under the original fuel filler and it even has fake tailpipes (the bike rack mount attach points). Everything electric is completely hidden and the original shifter, pedals and gauges still control the car. And all the trunk space is still there.

[Keith_MN]

Cool!! Always had a soft spot for Jaguars. I can't imagine all the double takes in the EV parking spots.

[Bry5on]

Request to see the Jag! Can't say I've ever seen pics, just the sig line which has always caught my eye.

Sure! In comparison to the Jag, the wagon is quite close to stock. This week the Jag got some additional attention too. I did some PCBA work (swapping resistors to get thermistor curves right), wiring (Gauge.S and switching a constant 12V drain to a switched 12V), plus lots of software. I had to add a whole lot of data to the CAN bus for Gauge.s, I had to write software to handle that 12V hot -> ignition change, a new WiFi dashboard for live data viewing that's more comprehensive than gauge.s, and with the help of Grok and about 4 prompts, built the best datalog analysis tool I've ever used - feel free to use it here, none of the data goes to a server, it all stays local until you refresh the page: https://bry5on-datalog.grok.me

Here's the primary viewer, highlighting that I had some brief second gear wheelspin on the right rear (wagon log). Crazy how easy it is to see in the datalog, and how it shows up in the individual wheel, vs speed, vs rpm traces (also EGT?):


And a highly chaotic plot showing more you can see zoomed out over a whole log:


And in the jag, since I have current and voltage, I can actually calculate drivetrain power. And since I have power and output shaft rpm, I can calculate torque. So I decided to add another page to the datalog viewer that automatically generates power/torque dyno plots.


And since I'd done that, I had to make it compatible with the wagon for monitoring other things, like this log which had extra fuel above 7300rpm WOT:


Here's that live jag dashboard: (notably pre-resistor work)


Alright, now that we're past all that, photos of the jag as promised:

[Keith_MN]

Request to see the Jag! Can't say I've ever seen pics, just the sig line which has always caught my eye.

[Bry5on]

Not a wagon thing but it sorta counts - wired a gauge.s in to the Jag to display all the stuff hidden on the CAN bus since the car only has so many gauges. Yes the fuel gauge and tach do work for SOC and battery current (tach-ammeter) respectively.

[Bry5on]

Well well well, looks like the non-CSL (wert_09) oversteer mu setting delayed the DSC intervention. Same corner, ~same speed, ~same lateral G, much later and shorter intervention. I'll keep driving to see if I can repeat a few more times.

[YoitsTmac]

I understand the issue now. Apologies. This is brake intervention and not engine DSC intervention.

[Bry5on]

I meant a raw dump of the entire bus. If not, it’s okay.

Pretty much every parameter that's available on the bus is logged in that datalog - he just wants a CAN dump? I don't log that

[YoitsTmac]

I meant a raw dump of the entire bus. If not, it’s okay.

[Bry5on]

Can you provide me a raw can dump of when you’re getting intervention you don’t like? I already got someone with an e90 willing to log

Yeah it's linked a few posts earlier, here ya go: https://datazap.me/u/bry5on/logs/cmu...44&axes=shared

[YoitsTmac]

Yeah it’s just the mild intervention so it’s not like an ABS pulse where the wheel materially slows. You can see all the wheel speeds in my CAN datalog above. The FL during a right hand corner DSC intervention starts to look a little noisier than the others but it’s pretty subtle. I’m pretty convinced that’s the wheel that’s seeing the drag torque intervention and it’s the oversteer model that’s messing me up. I think a modification to the steering angle characteristic curve could be the easier hack if we could figure out how to do it.

Can you provide me a raw can dump of when you’re getting intervention you don’t like? I already got someone with an e90 willing to log

[Bry5on]

Now that I think about it, you can use wheel speed readings. When a wheel spins are slips you'll see a deviation from the other tire speed readings. I use that to see how much I'm into the ABS when I overcook a turn or go off track...lol.

I can lend you my AiM Solo2DL for a week or two. It can log wheel speed DATA through CAN. It is a quick and easy 4 wire install.

Yeah it’s just the mild intervention so it’s not like an ABS pulse where the wheel materially slows. You can see all the wheel speeds in my CAN datalog above. The FL during a right hand corner DSC intervention starts to look a little noisier than the others but it’s pretty subtle. I’m pretty convinced that’s the wheel that’s seeing the drag torque intervention and it’s the oversteer model that’s messing me up. I think a modification to the steering angle characteristic curve could be the easier hack if we could figure out how to do it.

[YoitsTmac]

Yes that would be awesome. I’d love to do the MK60e5 conversion to customize the intervention even more

This man ran so you can fly: https://happycactusgarage.com/products/mk60-companion

Edit: my bad, that’s only ABS. Still needs a translator in the middle for DSC. But it’s in my back pocket.

[Bry5on]

Would you want Mk60e5 firmware if you could? Thats the last CAN based unit out there. It’ll project pressure and needs a wake and translator, but could technically work. Has internal pressure sensors too. Bluebimma on Instagram overcame the WSS with a factory WSS but didn’t state which one. Actually, I’m on mobile but you may already know from your wheel hub on your custom knuckle.

I only ask because I was looking into it this weekend. Really wanted mk100 but flexray is a black box to me

Yes that would be awesome. I’d love to do the MK60e5 conversion to customize the intervention even more

[YoitsTmac]

MK60 Brake Pressure Sensor Data – GSR Motorsports

MK60 Brake Pressure Sensor Data – GSR Motorsports

Yeah but I was looking for something I could throw in any e46 and start logging with other data. I did explore tapping in at the source and converting voltage but opted against it as it was only one of many sensors I wanted.