| selection |
Selection number of vehicle/scenario |
int |
| scenario_name |
Name of the selected scenario/vehicle |
string |
| veh_year |
Current year |
int |
| veh_pt_type |
Vehicle powertrain type |
string |
| pareto_front_number |
Optimization solution number from pareto front |
int |
| run_time_[s] |
T3CO run time for selected vehicle/scenario |
float |
| algorithm |
Algorithm for pymoo optimization. From ["NSGA2", "PatternSearch"] |
string |
| n_gen |
Number of generations of genetic algorithm optimization |
int |
| fvals_over_gens |
Optimization objective space values across generations |
float |
| design_cyc_trace_miss_dist_frac |
Fractional difference between achieved cumulative distance and prescribed cumulative distance. If composite drivecycle is input, the distance trace miss is output as a list |
dict/list[dict] |
| design_cyc_trace_miss_time_frac |
Fractional difference between achieved time when trace miss is and prescribed cumulative distance. If composite drivecycle is input, the time trace miss is output as a list |
dict/list[dict] |
| design_cyc_trace_miss_speed_mps |
Maximum speed (mps) by which vehicle’s speed falls behind prescribed speed trace. If composite drivecycle is input, the time trace miss is output as a list |
dict/list[dict] |
| design_cycle_EA_err |
Fractional difference between achieved energy consumption vs consumption estimated based on the input drivecycle. Checks for conservation of energy in the simulated results. |
dict/list[dict] |
| accel_EA_err |
Fractional difference between achieved energy consumption vs consumption estimated based on the acceleration test drivecycle with current vehicle mass. Checks for conservation of energy in the simulated results |
dict/list[dict] |
| accel_loaded_EA_err |
Fractional difference between achieved energy consumption vs consumption estimated based on the acceleration test drivecycle with fully laden vehicle. Checks for conservation of energy in the simulated results |
dict/list[dict] |
| grade_6_EA_err |
Fractional difference between achieved energy consumption vs consumption estimated based on the 6 % gradeability test drivecycle with fully laden vehicle. Checks for conservation of energy in the simulated results |
dict/list[dict] |
| grade_1p25_EA_err |
Fractional difference between achieved energy consumption vs consumption estimated based on the 1.25 % gradeability test drivecycle with fully laden vehicle. Checks for conservation of energy in the simulated results |
dict/list[dict] |
| final_cda_pct |
Optimization result for percent improvement in Cd*A (drag coefficient times frontal area) - based on aero drag improvement curve |
float |
| final_eng_eff_pct |
Optimization result for percent improvement in engine efficiency - based on engine efficiency improvement curve |
float |
| final_ltwt_pct |
Optimization result for percent improvement in vehicle mass - based on lightweighting improvement curve |
float |
| final_max_motor_kw |
Optimization result for motor power in kW - bound between scenario.knob_min_motor_kw and scenario.knob_max_motor_kw |
float |
| final_battery_kwh |
Optimization result for ESS max capacity in kWh - bound between scenario.knob_min_ess_kwh and scenario.knob_max_ess_kwh |
float |
| final_max_fc_kw |
Optimization result for fuel converter max power in kW - bound between scenario.knob_min_fc_kw and scenario.knob_max_fc_kw |
float |
| final_fs_kwh |
Optimization result for fuel storage max capacity in kWh - bound between scenario.knob_min_fs_kwh and scenario.knob_max_fs_kwh |
float |
| range_ach_mi |
Range achieved by vehicle based on drivecycle simulation |
float |
| target_range_mi |
Target range constraint for design vehicle during optimization |
float |
| delta_range_mi |
Difference between range achieved from simulation and target range of the design vehicle |
float |
| min_speed_at_6pct_grade_in_5min_ach_mph |
Final speed achieved by design vehicle during 6 % gradeability test run for 5 mins |
float |
| target_min_speed_at_6pct_grade_in_5min_mph |
Target speed for design vehicle during 6 % gradeability test run for 5 mins |
float |
| delta_min_speed_at_6pct_grade_in_5min_mph |
Difference between final speed achieved and target speed during 6% gradeability test |
float |
| min_speed_at_1p25pct_grade_in_5min_ach_mph |
Final speed achieved by design vehicle during 1.25 % gradeability test run for 5 mins |
float |
| target_min_speed_at_1p25pct_grade_in_5min_mph |
Target speed for design vehicle during 1.25 % gradeability test run for 5 mins |
float |
| delta_min_speed_at_1p25pct_grade_in_5min_mph |
Difference between final speed achieved and target speed during 1.25% gradeability test |
float |
| max_time_0_to_60mph_at_gvwr_ach_s |
Time taken achieved by fully laden design vehicle during acceleration for 0 to 60mph |
float |
| target_max_time_0_to_60mph_at_gvwr_s |
Target time taken for fully laden design vehicle during acceleration for 0 to 60mph |
float |
| delta_max_time_0_to_60mph_at_gvwr_s |
Difference between time taken by simulated vehicle and target time for fully laden acceleration test from 0 to 60mph |
float |
| max_time_0_to_30mph_at_gvwr_ach_s |
Time taken achieved by fully laden design vehicle during acceleration for 0 to 30mph |
float |
| target_max_time_0_to_30mph_at_gvwr_s |
Target time taken for fully laden design vehicle during acceleration for 0 to 30mph |
float |
| delta_max_time_0_to_30mph_at_gvwr_s |
Difference between time taken by simulated vehicle and target time for fully laden acceleration test from 0 to 30mph |
float |
| glider_cost_dol |
Estimated glider component cost in dollars - contributes to MSRP |
float |
| fuel_converter_cost_dol |
Estimated fuel converter component cost in dollars - contributes to MSRP |
float |
| fuel_storage_cost_dol |
Estimated fuel storage component cost in dollars - contributes to MSRP |
float |
| motor_control_power_elecs_cost_dol |
Estimated motor and power electronics component cost in dollars - contributes to MSRP |
float |
| plug_cost_dol |
Estimated plugin charger component cost in dollars - contributes to MSRP |
float |
| battery_cost_dol |
Estimated battery/ESS component cost in dollars - contributes to MSRP |
float |
| purchase_tax_dol |
Estimated purchased/excise tax in dollars - calculated from MSRP |
float |
| msrp_total_dol |
Estimated manufacturer's suggested retail price in dollars - calculated from vehicle component costs |
float |
| total_fuel_cost_dol |
Estimated fuel operating cost in dollars - calculated from energy consumption and fuel prices |
float |
| total_maintenance_cost_dol |
Estimated maintenance operating cost in dollars - calculated from VMT and scenario.maint_oper_cost_dol_per_mi |
float |
| mpgge |
Miles per Gallon of Gasoline Equivalent - from drivecycle simulation |
float |
| grid_mpgge |
Miles per Gallon of Gasoline Equivalent effect to grid - mpgge times charger efficiency |
float |
| mpgde |
Miles per Gallon of Diesel Equivalent - from drivecycle simulation |
float |
| kwh_per_mi |
Energy spent per mile of operation - estimated from drivecycle simulation |
float |
| payload_cap_cost_multiplier |
Lost payload capacity opportunity cost factor - represents the fractionally extra vehicle required to compensate for reduced payload capacity compared to conventional vehicle - Currently only for Class 8 vehicles |
float |
| total_fueling_dwell_time_hr |
Total dwell time of vehicle due to fueling/charging - used to estimate downtime opportunity cost |
float |
| total_mr_downtime_hr |
Total dwell time of vehicle due to maintenance & repair (planned, unplanned, and tire replacement) - used to estimate downtime opportunity cost |
float |
| total_downtime_hr |
Total downtime due to fueling/charging and maintenance events |
float |
| fueling_dwell_labor_cost_dol |
Estimated labor cost incurred during fueling/charging dwell time |
float |
| fueling_downtime_oppy_cost_dol |
Estimated opportunity cost associated with fueling/charging dwell time |
float |
| mr_downtime_oppy_cost_dol |
Estimated labor cost incurred during maintenance & repair downtime |
float |
| discounted_downtime_oppy_cost_dol |
Estimated discounted opportunity cost for both fueling dwell time and M&R downtime in dollars - estimation is based on config.TCO_method |
float |
| payload_capacity_cost_dol |
Lost payload capacity opportunity cost in dollars - estimated from payload_cap_cost_multiplier and estimated tco |
float |
| insurance_cost_dol |
Estimated insurance cost of vehicle in dollars - estimated from MSRP and scenario.insurance_rates_pct_per_yr |
float |
| residual_cost_dol |
Estimated residual cost of vehicle in dollars (residual value is the negative of residual cost) |
float |
| discounted_tco_dol |
Estimated discounted Total Cost of Ownership in dollars - Calculated using one of DIRECT or EFFICIENCY method from different cost components, discounted year over year at a rate of scenario.discount_rate_pct_per_yr, and calculated for scenario.vehicle_life_yr |
float |