Copyright Malcolm Faed. Images and text may only be copied with the permission of the author. This blog includes personal things of interest including electric vehicle conversion. I have documented the conversion of a petrol (gas) powered vehicle to Electric. http://www.austinev.org/evalbum/1149. The blog now documents the conversion of a BMW E30 to electric.
Thursday, 11 April 2013
Controlling the Azure Dynamics Air Conditioning Compressor
Thanks to Weisheimer from the EVTV forums for pointing me to the diagnostic software.
The Compressors ID is 0x439 as I had found by connecting only the compressor to a Can Spy.
Now I have the other piece of the puzzle. The compressor is controlled by can ID 0x410.
Below are the key messages controlling the compressor.
SIGNAL NAME, ID, NODE Start, Width, Res, Offset,Sign, Min, Max, Unit
target_compressor_speed 410 accm 8 8 60 0 False 0 15180 rpm
max_pwr_consumption 410 accm 0 8 0.1 0 False 0 25.3 kW
compressor_on_off 410 accm 46 1 1 0 False 0 1 Boolean
CASS_on_off 410 accm 43 1 1 0 False 0 1 Boolean
warmup_cycle_cntr_incr 410 accm 41 1 1 0 False 0 1 Boolean
And sent by the compressor
COMPRESSOR_STATUS 439 accm 56 2 1 0 False 0 3 enum ACTUAL_COMPRESSOR_SPEED 439 accm 48 8 60 0 False 0 15180 rpm
ACTUAL_POWER_CONSUMPTION 439 accm 40 8 0.1 0 False 0 25.3 kW
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