Document ID: chunk:federal_register_of_legislation:F2023L00129:reg:10:p81
Version: federal_register_of_legislation:F2023L00129
Segment Type: reg
Provision Reference: reg 10 (pt 81/150)
Character Range: 948128–954605

speed)                                               x             x
Engine speed                                                                                                                                          x             x
Engine coolant temperature (or equivalent)                                                                                                            x             x
Barometric pressure (directly measured or estimated)                                                                                                  x             x
Reference maximum engine torque                                                                                                                                     x
Net brake engine torque (as a percentage of reference maximum engine torque), or                                                                                    x
Actual engine torque / indicated torque (as a percentage of reference maximum engine torque, e.g. calculated from commanded injection fuel quantity)
Friction torque (as a percentage of reference maximum engine torque)                                                                                                x
Engine fuel flow                                                                                                                                                    x

       Table 2
       Optional engine speed and load information
                                                                                                                                    Freeze frame  Data stream
Driver's demand engine torque (as a percentage of maximum engine torque)                                                            x             x
Actual engine torque (calculated as a percentage of maximum engine torque, e.g. calculated from commanded injection fuel quantity)  x
Reference maximum engine torque as a function of engine speed                                                                                     x
Time elapsed since engine start                                                                                                     x             x

       Table 3
       Optional information, if used by the emission or the OBD system to enable or
       disable any OBWHSCD information
                                                                                                                                                                          Freeze frame  Data stream
Fuel level (e.g. percentage of the nominal capacity of the fuel tank) or tank fuel pressure (e.g. percentage of the usable range of fuel tank pressure), as appropriate   x             x
Engine oil temperature                                                                                                                                                    x             x
Vehicle speed                                                                                                                                                             x             x
Status of the fuel quality adaptation (active / not active) in case of gas engines                                                                                                      x
Engine control computer system voltage (for the main control chip)                                                                                                        x             x

       Table 4
       Optional information, if the engine is so equipped, senses or calculates the information
                                                                                                                      Freeze frame  Data stream
Absolute throttle position / intake air throttle position (position of valve used to regulate intake air)             x             x
Diesel fuel control system status in case of a close loop system (e.g. in case of a fuel pressure close loop system)  x             x
Fuel rail pressure                                                                                                    x             x
Injection control pressure (i.e. pressure of the fluid controlling fuel injection)                                    x             x
Representative fuel injection timing (beginning of first main injection)                                              x             x
Commanded fuel rail pressure                                                                                          x             x
Commanded injection control pressure (i.e. pressure of the fluid controlling fuel injection)                          x             x
Intake air temperature                                                                                                x             x
Ambient air temperature                                                                                               x             x
Turbocharger inlet / outlet air temperature (compressor and turbine)                                                  x             x
Turbocharger inlet / outlet pressure (compressor and turbine)                                                         x             x
Charge air temperature (post intercooler if fitted)                                                                   x             x
Actual boost pressure                                                                                                 x             x
Air flow rate from mass air flow sensor                                                                               x             x
Commanded EGR valve duty cycle/position (provided EGR is so controlled)                                               x             x
Actual EGR valve duty cycle/position                                                                                  x             x
PTO status (active or not active)                                                                                     x             x
Accelerator pedal position                                                                                            x             x
Redundant absolute pedal position                                                                                     x             if sensed
Instantaneous fuel consumption                                                                                        x             x
Commanded/target boost pressure (if boost pressure used to control turbo operation)