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Showing posts from June, 2021

Putting it back together

 Finally getting close now, the battery pack is in, still needs another bracket making up for extra support, but that can be done with the bumper on. Speaking of which, the bumper is now back on and in place. As. you can see, the battery box sticks down further than I would have liked, I might raise it up more at some point if it's an issue, but for now I'm going to roll with it and get on with the other jobs. There's still all the low voltage wiring to tidy up, along with the high voltage wiring to finish and secure in place. The large fuse, pre charge circuit and main contactors will live inside the box that's mounted just above the battery box. Currently the ignition needs to be on for the charger to get power, to solve this I've come up with a little circuit that uses the Control Pilot signal in the charing connector to power up the 12V circuits. Still left to do before I can attempt to get an MOT: Clean up low voltage wiring. High Voltage wiring. Rear battery m

More Battery Box Work

 It's been a while since the car rolled under it's own power with only a single battery module, since then I've started finalising the battery box. I've given up on the fibreglass tub and now decided to use PVC sheets on a metal frame and sealing the modules in. This will mean the only way in to the battery box is to destroy it. With this in mind, I'll be externally mounting the contactors, HV fuse etc. Along with this, it's become apparent the original BMS master board design has a few errors that need correcting.  One being the power supply having a couple of components the wrong way round and the Pilot Proximity detection circuit has errors. So with the V2 design done, once I've double checked it and hopefully Rob (converting an MX5) will also cast an eye over it, the designs can be set to JLCPCB for manufacture.  There's still a few more jobs to be doing before the pack can be installed permanently and the bumper put back on. I need to mount the sma