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== Limits == === Torque Reduction Factor (RPM) === '''Brief Description''': KL_MDRED_NKW '''Dimension''': 1D, vector '''Categories''': Limits '''Unit info''': 1/min --> - '''Breakpoints''': Torque Reduction Factor (RPM) X (autogen) '''Example''': 1400 2600 3600 5000 6000 6500 1.008 1.000 1.000 1.000 0.914 0.852 '''Notes''': An RPM-based table of torque multipliers normalized to 1. The factory table ranges from 1.008 at low RPM to 0.852 at high RPM. Presumably this is to a sort of nanny that makes the car feel a bit more punchy low down but safer at higher RPM. Setting to 1 across the board seems a better strategy. === Normierung fΓΌr Mdk_ist_sot_mem_mx === '''Brief description''': K_MDKIST_SOT_MX '''Dimension''': constant '''Categories''': Limits '''Units''': - '''Example''': 500.000 '''Notes''': A normalizing factor that looks like a clutch torque limit, upped to 550Nm for stage 1 and stage 2. === Max calculated power === '''Brief description''': K_EDA_P_MAX_MOT '''Dimension''': constant '''Categories''': Limits '''Units''': kW '''Notes''': Not used in the factor tune or in stage 1 and stage 2. === Load limit factor by rich for component protection === '''Brief description''': K_FRFMXBS_MN '''Dimension''': constant '''Categories''': Limits '''Units''': - '''Example''': 0.500 '''Notes''': Multiplies the load limit by this factor if entering component protection mode. Some tunes, like MHD's, set this to 1. Presumably they are relying on the richer mixture during component protection? === Max naturally aspirated volumetric efficiency === '''Brief Description''': For naturally aspirated operation, should not exceed 100% KL_LAMX '''Dimension''': 1D, vector '''Categories''': Limits '''Unit info''': 1/min --> % '''Breakpoints''': Max naturally aspirated volumetric efficiency X (autogen) '''Example''': 100 120 163 175 225 250 275 300 325 350 450 475 500 520 540 600 675 695 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0 92.0 '''Notes''': Seems like the XDF here might have the RPM values out by a factor of 10. MHD's tunes set this to 100% across the entire table, presumably to simplify calculations? === Torque request ceiling === '''Brief Description''': BMWtqe_tqc_FlApplStgNorm_T '''Dimension''': 1D, vector '''Categories''': Limits '''Unit info''': 1/min --> Nm '''Breakpoints''': Torque request ceiling X (autogen) '''Example''': 800 900 1000 1250 1380 1500 1520 2000 2500 4500 4750 5000 5200 5500 6000 6500 6750 7000 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 490.0 474.0 458.0 434.0 398.0 368.0 353.0 333.0 '''Notes''': This table acts as an upper limit on the driver's wish. This, in conjunction with the relative torque request tables (in the throttle maps category) provide the driver's torque request to the ECU. Tunes should generally remove the miserly tapering of torque found in the stock map above. Note the breakpoints can be tweaked to give lower or higher granularity at specific RPM ranges. Remember, the use of 'ceiling' is confusing here. It represents the driver's wish, The values look like clutch torque. === Switch recognition stalling === '''Brief description''': BMWmondmf_swi_StallStru_C '''Dimension''': constant '''Categories''': Limits '''Units''': '''Example''': 1.0 '''Notes''': Not sure what this is. Could it have been translated backwards and actually mean 'stalling recognition switch'? Still not sure why it would do even then. === Max power (monitoring) === '''Brief description''': MoFTrqPtd_pwrMax_C '''Dimension''': constant '''Categories''': Limits '''Units''': kW '''Example''': 250.0000 '''Notes''': Can be set to a much higher value such as 500 kW for stage 1 or 2 tunes. === Max Torque at clutch (monitoring) === '''Brief description''': MoFTrqPtd_tqCluMax_C '''Dimension''': constant '''Categories''': Limits '''Units''': Nm '''Example''': 500.000 '''Notes''': Tunes should set to a sensible upper value. === Maximal actual torque === '''Brief description''': MoFTrqAct_trqPtdInjActv_C '''Dimension''': constant '''Categories''': Limits '''Units''': Nm '''Notes''': Not clear. The factory sets this to 600Nm, which is above its clutch torque limit. This might suggest it's not used by the factory tune and that other tunes can just lift it out of the way? === Max allowed actual torque, injection active. === '''Brief description''': MoFTrqAct_trqPtdInjActv_C '''Dimension''': constant '''Categories''': Limits '''Units''': Nm === Max allowed raw speed for signal check === '''Brief description''': VROHMAX '''Dimension''': constant '''Categories''': Limits '''Units''': === Maximum indicated torque (Nm) === '''Brief description''': EngDa_tqInnrMax_C '''Dimension''': constant '''Example''': 571.0 '''Categories''': Limits '''Units''': Nm '''Notes''': The factory sets this to 571Nm, which is about 15% about the clutch torque limit. This suggests other tunes should set this according to their clutch torque and not just lift it out of the way. === Maximum for CltPrt_MdDec === '''Brief description''': K_KSU_MDEINGRIFF_MX '''Dimension''': constant '''Categories''': Limits, Torque limiting maps '''Units''': Nm === Maximum for CltPrt_MdDec_P === '''Brief description''': K_KSU_MDEINGRIFFPROP_MX '''Dimension''': constant '''Categories''': Limits, Torque limiting maps '''Units''': Nm === Minimum for CltPrt_MdDec_P === '''Brief description''': K_KSU_MDEINGRIFFPROP_MN '''Dimension''': constant '''Categories''': Limits, Torque limiting maps '''Units''': Nm '''Example''': -450.000 '''Notes''': Not sure what this means. Some kind of deceleration torque limit perhaps. === Maximum torque for integral component PI controller === '''Brief description''': K_KSU_INTREG_MX '''Dimension''': constant '''Categories''': Limits, Torque limiting maps '''Units''': Nm === Max. torque at trans MT === '''Brief Description''': KL_MDG_MAX_GANG_HS '''Dimension''': 1D, vector '''Categories''': Limits, Torque limiting maps '''Unit info''': - --> Nm '''Breakpoints''': Max. torque at trans MT X (autogen) === Max. torque at trans AT === '''Brief Description''': KL_MDG_MAX_GANG_AT '''Dimension''': 1D, vector '''Categories''': Limits, Torque limiting maps '''Unit info''': - --> Nm '''Breakpoints''': Max. torque at trans AT X (autogen) === Speed-dependent full load line of the engine (Nkw_opt) for manual shift === '''Brief Description''': KL_MD_K_MAX_VL_HS '''Dimension''': 1D, vector '''Categories''': Limits, Torque limiting maps '''Unit info''': 1/min --> Nm '''Breakpoints''': Speed-dependent full load line of the engine (Nkw_opt) for manual shift X (autogen) '''Example''': 1000 1250 1300 2500 3500 4500 4750 5000 5500 6000 6500 7000 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 === Speed-dependent full load line of the engine (Nkw_opt) === '''Brief Description''': KL_MD_K_MAX_VL '''Dimension''': 1D, vector '''Categories''': Limits, Torque limiting maps '''Unit info''': 1/min --> Nm '''Breakpoints''': Speed-dependent full load line of the engine (Nkw_opt) X (autogen) '''Example''': 1000 1250 1300 2500 3500 4500 4750 5000 5500 6000 6500 7000 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 === Speed-dependent boost characteristic curve (Nkw_opt) for manual shift === '''Brief Description''': KL_MD_K_MAX_BST_HS '''Dimension''': 1D, vector '''Categories''': Limits, Torque limiting maps '''Unit info''': 1/min --> Nm '''Breakpoints''': Speed-dependent boost characteristic of the engine (Nkw_opt) for manual shift X (autogen) '''Example''': 1000 1250 1550 2300 3800 4600 5400 5500 5800 6000 6500 7000 300.0 300.0 300.0 310.0 320.0 310.0 300.0 295.0 280.0 270.0 230.0 150.0 === Speed-dependent boost characteristic curve (Nkw_opt) === '''Brief Description''': KL_MD_K_MAX_BST '''Dimension''': 1D, vector '''Categories''': Limits, Torque limiting maps '''Unit info''': 1/min --> Nm '''Breakpoints''': Speed-dependent boost characteristic of the engine (Nkw_opt) X (autogen) '''Example''': 1000 1250 1300 2500 3500 4500 4750 5000 5500 6000 6500 7000 485.0 485.0 485.0 485.0 485.0 485.0 485.0 463.0 422.0 387.0 336.0 291.0
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