| { | |
| "formula": "road_load_power_w = rolling * mass_kg * g * cos(grade) * speed_mps + aero * speed_mps**3", | |
| "rolling": 0.011932077183171142, | |
| "aero_kg_per_m": 2.7376895505031347, | |
| "g_mps2": 9.8, | |
| "grade": "road_grade_pct / 100", | |
| "fitted_on": "the whole 428 km log the published stretch came from, by least squares (no intercept) on the moments the truck was driving rather than braking; R^2 0.74 on a held-out 30%" | |
| } | |