AIM data via CanBus (CAN-bus to dashes, dataloggers)
Order [CAN_Dash] with AIM-AIM option:
35 bytes (0..34) are sent in 5 CAN-frames, CAN-ID 0x6F0..0x6F4, see
Some notable channels (See 1.2.38 on GenBoard/UnderDevelopment/FirmwareChanges )
- channels OILPRESSURE (9), OILTEMP (13), FUELTEMP (109), FUELPRESSURE (21), ERRORS (125)
- predefined calibrations and channel inputs for AIM pressure and temperature channels
- ERRORS (highbyte) has function activation states: ALS, Launch, Shiftcut, n2o, Traction Control, Injector stage 2, Idle, Ego
- ERRORS (lowbyte) has error states: o2 not ready, trigger error state, config slot active, baro problem, engine knocking, warning light state
It is practical to send data in this format to configurable dataloggers, instruments, dash.
- For example ERRORS high-byte bit6 is Launch activation
Message format
- CAN ID, Byte, (Bits), Gain/unit, Data type
- 6F0, 0, (0:16), 1, RPM
- 6F0, 2, (0:16), 1, WHEELSPEED
- 6F0, 4, (0:16), 1, OILPRESSURE
- 6F0, 6, (0:16), 1, OILTEMP
- 6F1, 0, (0:16), 1, WATERTEMP
- 6F1, 2, (0:16), 1, FUELPRESSURE
- 6F1, 4, (0:16), 1, BATTERYVOLTAGE
- 6F1, 6, (0:16), 1, THROTTLEANGLE
- 6F2, 0, (0:16), 1, MANIFOLDPRESS
- 6F2, 2, (0:16), 1, AIRCHARGETEMP
- 6F2, 4, (0:16), 1, EXHAUSTTEMP
- 6F2, 6, (0:16), 1, LAMBDASENSOR
- 6F3, 0, (0:16), 1, FUELTEMP
- 6F3, 2, (0:16), 1, GEAR
- 6F3, 4, (0:16), 1, ERRORS
- 6F3, 6, (0:16), 1, constant 0xFC30 (sent as 30, FC little endian value) ?
- 6F4, 0, (0:16), 1, 0xFB, 0xFA
- 6F4, 2, (0:8), 1, 1 byte checksum (sum of above bytes)
Note : VEMS also supports AIM via serial, via 1st or 2nd RS232 port; it has similar datarate as via CAN, and practical to broadcast to an arbitrary number of receivers, see:
- BroadcastDatastreamAim
- BroadcastDatastreamAimSecondSerial
- See AimCanBusSniffing especially if sniffing, (or possibly broken receiver that does NOT acknowledge messages)
V1.0.0.0 VEMS AIM CAN DBC - Based on above information and PDF scaling , aids users to get AIM2CAN working when loaded with AIM2AIM. For viewing Kvaser Database Editor is free and easy to use
http://www.vems.hu/files/AIM2CAN/VEMS%20AIM%20CAN%20v1.0.0.0.zip
V1.0.1.0 VEMS AIM CAN DBC - TODO : VEMS can you specify exactly the bit locations for the Errors channel, this can be setup then in the DBC file specifically as bit indications which many platforms support.
See also:
- Vems Aim2Can Turbolamik Tranny - VEMS Turbolamik automatic gearbox support