Can Specification - Bosch IMSA Prototype Classes Scrutineering System Manual

6 | CAN Specification

Channel Name
Engine Revs
Ignition Timing
Fuel Injector Mass
Fuel Rail Pressure
Gearbox Drum Position
Gearbox Flag
Gear
FL Wheelspeed
FR Wheelspeed
RL Wheelspeed
RR Wheelspeed
Throttle Pedal
Engine Throttle(s)
FL Brake Pressure
FR Brake Pressure
RL Brake Pressure
RR Brake Pressure
Mixture Map
Boost Map
Display Brightness
Fuel Consumption
Calculation
Steering Angle
Clutch Pressure
Cam Angle Left Bank
Intake
Cam Angle Left Bank
Exhaust
Cam Angle Right Bank
Intake
Cam Angle Right Bank
Outlet
Tire Pressure FL
Tire Pressure FR
Tire Pressure RL
Tire Pressure RR
Fuel Probe Flag
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6 CAN Specification
There are two IMSA CAN interfaces that may be used for communication, on these
buses the team is required to send the "Team Transmitted Channels".
Teams will be responsible for informing IMSA and Bosch which buses will be used
for ECU and team communications. These messages may be on the same bus.
CAN Buses:
The CAN buses will be used to transfer vital information between the team and the
Scrutineering System. The buses are required to be 1 Mbit and conform to CAN
2.0B specifications.
6.1 Team Transmitted Channels
Short Raster
Name (ms)
nmot
ign_out
fuel_mass
prail
gear_drum
shift_*
gear
vwheel_fl
vwheel_fr
vwheel_rl
vwheel_rr
aps
ath(2)
pbrake_fl
pbrake_fr
pbrake_rl
pbrake_rr
mappos
bmap
display_b
fuelcons
steer
pclutch
Cam1Int
Cam1Exh
Cam2Int
Cam2Exh
ptireFL
ptireFR
ptireRL
ptireRR
b_fuelprobe
IMSA Prototype Class Scrutineering Logger
Notes
10 Engine revolutions per minute
10 Crank angle of ignition event
10 Fuel mass injected per 2 engine revolutions
10 Pressure measured in the high pressure fuel rail
20 Voltage of gearbox drum angle sensor
20 Flag denoting, up/down shift, shift error, and
shift strategy active
20 Engaged gear in transmission
20 Speed of FL wheel
20 Speed of FR wheel
20 Speed of RL wheel
20 Speed of RR wheel
50 Throttle pedal percentage
50 Throttle blade open percentage
20 If only axle pressure is available, send on both L & R
20 If only axle pressure is available, send on both L & R
20 If only axle pressure is available, send on both L & R
20 If only axle pressure is available, send on both L & R
100 Value of engine mixture map selection switch
100 Value of engine boost map selection switch
1000 Desired scrutineering display brightness (1-6)
100 Counter starts from 0 each session
Does NOT reset during session/race
20 Angle of steering wheel from center
20 Pressure in the clutch disengagement system
100 Angle of the drivers left bank intake CAM from park
100 Angle of the drivers left bank exhaust CAM from park
100 Angle of the drivers right bank intake CAM from park
100 Angle of the drivers right bank exhaust CAM from
park
1000 TPMS system reported absolute air pressure in FL tire
1000 TPMS system reported absolute air pressure in FR
tire
1000 TPMS system reported absolute air pressure in RL
tire
1000 TPMS system reported absolute air pressure in RR
tire
20 Fuel Probe sensor: 0 = not connected, 1 = connected
Bosch Motorsport