As you all know I've been tinkering with IMA control for a few years and the BCM gauge more recently. Well it all seems to be working pretty well as a combo over last few months.
So with Mike's agreement I have decided to release the 15 spare pcb's I have to UK/European owners only.
I know this may dissapoint some, but I don't want to compete with Mike in the US when he still has 100 MIMA or so boards available at a bargain price. I still use Mike's MIMA system albeit with the pressure sense buttons in my original PHEV 40AH Lithium car. It's a great system. The BCM Gauge of course remains available while stocks last.
I'll probably sell the 15 pcb's as a kit with all components apart from the 16x2 serial lcd screen. There will not be an assembled option at this time. It took me about an hour to build one today so it's not very difficult. The schematic will only be provided to purchasers, and updates to the code will be provided in hex form only at this time. Of course the code is still under development but the basics work well.
The IMA control integrates with the throttle, brake, clutch, for input at present. It also interogates the BCM data and uses the 5 way joybutton for user control/operation. The pcb also has inputs for the vss and map sensors but these are not used by the present code.
My present code has the core gauge functions, volts, temp, soc, amps and control over the IMA. It has a sport mode where when throttle depressed more than 80% gives full assist.
It has the 5 way joybutton cruise type modes.
Assist/Regen are controlled by cmdpwr pwm duty which goes from 10-90% 50% = standby
That gives 40 levels/units of adjustment for assist or regen with my system.
Up = Inc Assist or Dec regen by one unit
Down = Dec Assist or Inc regen by one unit
Left = Dec Assist or Inc regen by ten units
Right = Inc Assist or Dec regen by ten units
Centre = cancel and menu mode if held down.
All the levels are held until cancelled so you don't have to have hand on joybutton.
Pressing centre button, Brake, Clutch or engaging sport cancels previous settings.
So for instance when driving in top on the flat at 40mph one click right (10 units) gives me about 12A of assist which is held until i cancel it. If i then put my foot down sport mode engages, and you get whatever current the system can deliver at that rpm/soc/temp etc. When you ease your foot back off the throttle system reverts to standby/oem mode.
I'll post some more pics/video over next few days/weeks. But if anyone wants one then PM me.
First come first served payment via paypal.
The new pcb uses the same programmer and software as the BCM gauge.
The latest software version is V4.06 attached to this post.