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bmw_m8.yaml
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bmw_m8.yaml
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powertrain:
bias: [0.25,0.25,0.25,0.25] #OPTIMIZE
engine:
idle_rpm : 710 #Measured from the real data
minimum_rpm: 600 #rpm # Minimum in all tests
maximum_rpm: 7324 #rpm # Maximum in all tests
w_table: [600.0,1821,5837,6835,7324] # [rpm] # automobile-catalog.com
torque_max: [290,750,750,640,516] # [Nm] # Torque extrapolated from 1000 to 600 rpm
inertia: 1.2 #OPTIMIZE # engine_inertia [Kgm^2] 0.8
torque_converter:
speed_ratio: [0,0.23,0.92, 1] #Manually adapted from the real data
ratio: [2.5, 1.3, 0.95, 0.95] #Manually adapted from the real data
factor: [0.04582197, 0.02773522, 0.01706852, 0.01279646, 0.01051292, 0.00982103, 0.00913212, 0.00769946, 0.00682872, 0.00627394, 0.00306653]
CONVERTER_SYNC_TIME: 10 #Manually adapted on the real data
lock_up_ratio: 0.92 #Manually adapted on the real data
gearbox:
MIN_GEAR_CHANGE_INTERVAL: 200 #Stimated from Double lane change_Dry_Automatic_Light_70_Repetition 1
#N, 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th
gear_ratio: [0, 5.0, 3.2, 2.143, 1.720, 1.313, 1.0, 0.823, 0.64] #BMW Technical Data
#N, 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th
gear_max_rpm: [[0.0, 6500, 6200, 6200, 6200, 6200, 6200, 6200, 6200], #0% [0.0, 1750, 2350, 2000, 2000, 2000, 2000, 2000, 2000], #0%
[0.0, 1750, 2350, 2000, 2000, 2000, 2000, 2000, 2000], #10%
[0.0, 1750, 2350, 2000, 2000, 2000, 2000, 2000, 2000], #20%
[0.0, 1750, 2350, 2000, 2000, 2000, 2000, 2000, 2000], #30%
[0.0, 2250, 2350, 2000, 2000, 2000, 2000, 2000, 2000], #40%
[0.0, 2250, 2550, 2750, 2750, 2750, 2750, 2750, 2750], #50%
[0.0, 2250, 2850, 3650, 3650, 3650, 3650, 3650, 3650], #60%
[0.0, 2500, 3050, 3650, 3650, 3650, 3650, 3650, 3650], #70%
[0.0, 2850, 4300, 4300, 4300, 4300, 4300, 4300, 4300], #80%
[0.0, 4700, 4700, 4700, 4700, 4700, 4700, 4700, 4700], #90%
[0.0, 6500, 6200, 6200, 6200, 6200, 6200, 6200, 6200]] #100% # Calculated
gear_min_rpm: [[0.0, 750, 800, 1300, 1400, 1200, 1000, 1000, 1000], #0%
[0.0, 1000, 1500, 1750, 2000, 2375, 2600, 2600, 2600], #10%
[0.0, 1000, 1500, 1750, 2000, 2375, 2600, 2600, 2600], #20%
[0.0, 1000, 1500, 1750, 2000, 2375, 2600, 2600, 2600], #30%
[0.0, 1000, 1500, 1750, 2000, 2375, 2600, 2600, 2600], #40%
[0.0, 1000, 1500, 1750, 2000, 2375, 2600, 2600, 2600], #50%
[0.0, 1000, 1500, 1750, 2000, 2375, 2600, 2600, 2600], #60%
[0.0, 1000, 1500, 1750, 2000, 2375, 2600, 2600, 2600], #70%
[0.0, 1000, 1500, 1750, 2000, 2375, 2600, 2600, 2600], #80%
[0.0, 1000, 1500, 1750, 2000, 2375, 2600, 2600, 2600], #90%
[0.0, 1000, 1500, 1750, 2000, 2375, 2600, 2600, 2600]] #100% # Calculated
efficiency: 0.95 #0.95 # Efficiency of the whole powertrain system #OPTIMIZE
inertia: 0.1 # Gear Box Inertia [Kgm^2] #OPTIMIZE 0.05
differential:
ratio: 3.154 # Differential ratio #BMW Technical Data
driveshaft_inertia: 0.9 #7.8596 # drive shaft Inertia [Kgm^2] #OPTIMIZE
brake:
max_braking_torque: 17500. # [N/m]
brake_bias: [0.30,0.20,0.30,0.20] # [%]
steering:
maximum_steering_angle: 20. # maximum steering angle [rad] # Need to be checked! 25.1
ratio: 14.3 #BMW Technical Data
tire:
relaxation: 0.1
inertia: [1.5, 2.0, 1.5, 2.0] # Wheel Inertia on each wheel [Kgm^2] #OPTIMIZE
rolling_resistance_coefficient: 0.08
longitudinal:
peak_friction : 1.1
shape_factor : 1.3
slip_stiffness : 22
lateral:
peak_friction : 1.1
shape_factor : 1.3
cornering_coefficient : 30.
dynamic_radius: [0.35025, # FL - 275/35 ZR20
0.35375, # RL - 285/35 ZR20
0.35025, # FR - 275/35 ZR20
0.35375] # RR - 285/35 ZR20 # Tire Radius [m]
aerodynamics:
air_drag_coefficient: 0.33 # BMW Technical Data
front_area: 2.25 # BMW Technical Data
air_density: 1.2 # Air Density
suspension:
roll_bar_stiffness: 2000 #5546.58 #OPTIMIZE
pitch_centre_height: 0.05 #OPTIMIZE distance from the CG to the pitch center
roll_centre_height: 0.05 #OPTIMIZE distance from the CG to the roll center
unsprung_mass: [100.0, 99.0, 100.0, 99.0]
spring_rate: [18795.0, 14184.0, 18795.0, 14184.0]
#damping_rate: [5026.0, 5249.0, 5026.0, 5249.0]
damping_rate: [1200.0, 1200.0, 1200.0, 1200.0]
body:
lf: 1.331 # x-distance from Vehicle CoG to the front axle [m] # Measured
lr: 1.496 # x-distance from Vehicle Cog to the rear axle [m] # Measured
wl: 0.804 # y-distance from Vehicle CoG to the left chassis point [m] # Measured
wr: 0.826 # y-distance from Vehicle CoG to the right chassis point [m] # Measured
sz: -0.078 # z-distance from Vehicle CoG to the chassis point [m] # Measured NEED TO BE CHECKED - POSSIBLE OPTIMIZATION
mass: 2074.4 # Vehicle Mass # Measured
# Body inertias
i_x_s: 800.0 # moment of inertia for sprung mass in roll [kg m^2] 818.05 #OPTIMIZE
i_y_s: 2638.0 # moment of inertia for sprung mass in pitch [kg m^2] 2277. #OPTIMIZE
i_z: 4983.0 # moment of inertia for sprung mass in yaw [kg m^2] 1921.3 #OPTIMIZE