Posts Tagged ‘Sensors’

More Programming

Tuesday, September 29th, 2009

OK, well after a phone call to Motec, I have got the dash talking to the ECU, and got the sensors all calibrated. Getting the sensors calibrated was not the easiest thing, and in fact took the all day to do! The problem being that Motec didnt have them in their pre-defined list and the sensors were just effectively variable resistors. However the M400 can only read in a voltage, and not knowing the rest of the circuit I couldnt change from one to the other. I have sure there will just be either a pull up or down resistor and the voltage will come out between, or something similar.

It also turns out that the document I had from AIM had a typo on the CAN address, hence the inability to get them all talking. Pop in the right address and bingo, it all suddenly worked!

So, depending on time on Sunday after the Britcar 500, I will try to get the airbox, overflow bottle and/or GCU sorted. hmmmm looks doubtful!

Programming

Monday, September 28th, 2009

The wiring is now at a state where the ECU, GCU and dash can all be programmed etc. Obviously the map is already in the ECU but some auxiliary sensors needed configuring aswell as inputs from the GCU and outputs to the dash. I first tried to install the software for the dash, this all went well until trying to install the usb drivers! This then took about six hours. I have now worked out how to do it (the documentation just assumes it works)! Then the GCU. Once the ash had been installed the GCU usb drivers suddenly started working aswell. I think the dash had just messed everything up! Now the ECU. There was an instant problem with this in that when I plugged in the download cable it would connect and the disconnect continuously! A thought struck me so I disconnected the loom and used the dyno loom and all was well. I then thought that perhaps the dash was messing up, as it had caused a few problems already! I disconnected it and suddenly everything started working!

Programming 

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Engine Loom

Monday, April 13th, 2009

As I have booked the dyno for tomorrow time was running out! But Paul Dobb definitely came through with the engine loom!

Techy Bit!

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‘Chopper’ Wheels

Monday, April 6th, 2009

After modifying the front axles for the chopper wheels the sensor needed to be mounted. I decided that it was OK to machine a small part of the upright away for the sensor to poke through, it was either this or extended everything further inboard but I cant see any problem with this. In this region of the upright it is very thin so I am not worried at all by machining this little away.

Machined Front Upright

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Axle Mods For ‘Chopper’ Wheels

Sunday, March 29th, 2009

I forgot last week that we had the Britcar Production race in the Lotus on Saturday, hence not too much done this week apart from cleaning up! I did however get a bit of time to look at the front ‘chopper’ wheel assembly.

Aluminium Spacer
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