comport str COM3 factor_speed flt 4.0 factor_engine_rpm flt 0.066 factor_brake_air_pressure flt 1.0 factor_brake_temperature flt 1.0 factor_fuel_ratio flt 100.0 factor_oil_pressure flt 1.0 factor_oil_temperature flt 1.0 factor_water_temperature flt 1.0 factor_battery_voltage flt 5.0