m_td: 52800 # mass on driving axles of the traction unit in kg (source: FBS: DB 642; proportionately to the number of axles: 4 to 2, see:https://de.wikipedia.org/wiki/Siemens_Desiro_Classic)
m_tc: 35200 # mass on carrying axles of the traction unit in kg (source: FBS: DB 642; proportionately to the number of axles: 4 to 2, see:https://de.wikipedia.org/wiki/Siemens_Desiro_Classic)
m_w: 0 # mass of the consist (set of wagons) in kg (source:https://de.wikipedia.org/wiki/Siemens_Desiro_Classic -> no separate wagons)
v_limit_kmh: 120 # in km/h (source:https://de.wikipedia.org/wiki/Siemens_Desiro_Classic)
a_braking: -0.4253 # in m/s^2 (source:FBS -> using the information from the "Fahrschaubild" of a long path without gradient or speed limit for DB 642)
# coefficients for the vehicle resistance
# for the traction unit (F_Rt=f_Rtd0*m_td*g+f_Rtc0*m_tc*g+F_Rt2*((v+Δv_t)/v00)^2)
f_Rtd0: 3.0 # coefficient for basic resistance due to the traction units driving axles (in ‰) (source:"Fahrdynamik des Schienenverkehrs"by Wende, 2003, p. 151 for "f_WL0" -> 2.5 ‰ to 3.5 ‰)
f_Rtc0: 1.4 # coefficient for basic resistance due to the traction units carring axles (in ‰) (source:"Fahrdynamik des Schienenverkehrs"by Wende, 2003, p. 151 for "f_WW0" -> 1.2 ‰ to 1.6 ‰)
F_Rt2: 2600 # coefficient for air resistance of the traction units (in N) (source: the closest parameters are used:"Fahrdynamik des Schienenverkehrs"by Wende, 2003, p. 151 for "Fzg. vierachsig, abgerundeter Kopf" plus "Sektion bei Mehrteiligkeit" -> 2200 N + 400 N)
# for the consist (set of wagons) (F_Rw=m_w*g*(f_Rw0+f_Rw1*v/v00+f_Rw2*((v+Δv_w)/v00)^2))
f_Rw0: # coefficient for basic resistance of the set of wagons (in ‰) (source:https://de.wikipedia.org/wiki/Siemens_Desiro_Classic -> no separate wagons)
f_Rw1: # coefficient for resistance to rolling of the set of wagons (in ‰) (source:https://de.wikipedia.org/wiki/Siemens_Desiro_Classic -> no separate wagons)
f_Rw2: # coefficient for air resistance of the set of wagons (in ‰) (source:https://de.wikipedia.org/wiki/Siemens_Desiro_Classic -> no separate wagons)
# tractive effort as pairs of speed and tractive effort
F_T_pairs:# [v in m/s, F_T in N]
F_T_pairs_kmh: # [v in km/h, F_T in N] (source:FBS -> using the information from the "Fahrschaubild" of a long path without gradient or speed limit for DB 642)
