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readTIR.py
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import numpy as np
import time
import matplotlib.pyplot as plt
import yaml
import argparse
import os
from pathlib import Path
parser = argparse.ArgumentParser(description='Process TIR files.')
# Add the arguments
parser.add_argument('-f', '--filename', type=str, help='The name of the TIR file to process')
parser.add_argument('-d', '--data_path', type=str, default='tire_data/TIR_files/', help='Directory path where TIR files are stored')
parser.add_argument('-s', '--save_path', type=str, default='tire_data/yamls/', help='Directory path where YAML files will be saved')
# Parse the arguments
args = parser.parse_args()
# Assuming the script_dir is the current working directory
script_dir = os.getcwd()
# Construct full file paths
data_path = os.path.join(script_dir, args.data_path)
print(f"Reading {args.filename+'.tir'} file from: {data_path} ...")
save_path = os.path.join(script_dir, args.save_path)
TIR_file = os.path.join(data_path, args.filename+'.tir')
def read_tir(file_path):
# Initialize the tirParams dictionary with all parameters set in the MATLAB code
tir_params = {
'FILE_TYPE': 'default',
'FILE_VERSION': 3.0,
'FILE_FORMAT': 'default',
'LENGTH': 'default',
'FORCE': 'default',
'ANGLE': 'default',
'MASS': 'default',
'TIME': 'default',
'FITTYP': 0,
'TYRESIDE': 'LEFT',
'LONGVL': 16.7,
'VXLOW': 1,
'ROAD_INCREMENT': 0.01,
'ROAD_DIRECTION': 1,
'PROPERTY_FILE_FORMAT': 'default',
'USER_SUB_ID': 815,
'N_TIRE_STATES': 4,
'USE_MODE': 124,
'HMAX_LOCAL': 2.5E-4,
'TIME_SWITCH_INTEG': 0.1,
'UNLOADED_RADIUS': 0.3135,
'WIDTH': 0.205,
'ASPECT_RATIO': 0.6,
'RIM_RADIUS': 0.1905,
'RIM_WIDTH': 0.152,
'INFLPRES': 220000,
'NOMPRES': 220000,
'MASS1': 9.3,
'IXX': 0.391,
'IYY': 0.736,
'BELT_MASS': 7,
'BELT_IXX': 0.34,
'BELT_IYY': 0.6,
'GRAVITY': -9.81,
'FNOMIN': 4000,
'VERTICAL_STIFFNESS': 200000,
'VERTICAL_DAMPING': 50,
'MC_CONTOUR_A': 0.5,
'MC_CONTOUR_B': 0.5,
'BREFF': 8.4,
'DREFF': 0.27,
'FREFF': 0.07,
'Q_RE0': 1,
'Q_V1': 0,
'Q_V2': 0,
'Q_FZ2': 1.0E-4,
'Q_FCX': 0,
'Q_FCY': 0,
'Q_CAM': 0,
'PFZ1': 0,
'BOTTOM_OFFST': 0.01,
'BOTTOM_STIFF': 2000000,
'LONGITUDINAL_STIFFNESS': 300000,
'LATERAL_STIFFNESS': 100000,
'YAW_STIFFNESS': 5000,
'FREQ_LONG': 80,
'FREQ_LAT': 40,
'FREQ_YAW': 50,
'FREQ_WINDUP': 70,
'DAMP_LONG': 0.04,
'DAMP_LAT': 0.04,
'DAMP_YAW': 0.04,
'DAMP_WINDUP': 0.04,
'DAMP_RESIDUAL': 0.0020,
'DAMP_VLOW': 0.0010,
'Q_BVX': 0,
'Q_BVT': 0,
'PCFX1': 0,
'PCFX2': 0,
'PCFX3': 0,
'PCFY1': 0,
'PCFY2': 0,
'PCFY3': 0,
'PCMZ1': 0,
'Q_RA1': 0.5,
'Q_RA2': 1,
'Q_RB1': 1,
'Q_RB2': -1,
'ELLIPS_SHIFT': 0.8,
'ELLIPS_LENGTH': 1,
'ELLIPS_HEIGHT': 1,
'ELLIPS_ORDER': 1.8,
'ELLIPS_MAX_STEP': 0.025,
'ELLIPS_NWIDTH': 10,
'ELLIPS_NLENGTH': 10,
'PRESMIN': 10000,
'PRESMAX': 1000000,
'FZMIN': 100,
'FZMAX': 10000,
'KPUMIN': -1.5,
'KPUMAX': 1.5,
'ALPMIN': -1.5,
'ALPMAX': 1.5,
'CAMMIN': -0.175,
'CAMMAX': 0.175,
'LFZO': 1,
'LCX': 1,
'LMUX': 1,
'LEX': 1,
'LKX': 1,
'LHX': 1,
'LVX': 1,
'LCY': 1,
'LMUY': 1,
'LEY': 1,
'LKY': 1,
'LHY': 1,
'LVY': 1,
'LTR': 1,
'LRES': 1,
'LXAL': 1,
'LYKA': 1,
'LVYKA': 1,
'LS': 1,
'LKYC': 1,
'LKZC': 1,
'LVMX': 1,
'LMX': 1,
'LMY': 1,
'LMP': 1,
'PCX1': 1.65,
'PDX1': 1.3,
'PDX2': -0.15,
'PDX3': 0,
'PEX1': 0,
'PEX2': 0,
'PEX3': 0,
'PEX4': 0,
'PKX1': 20,
'PKX2': 0,
'PKX3': 0,
'PHX1': 0,
'PHX2': 0,
'PVX1': 0,
'PVX2': 0,
'PPX1': 0,
'PPX2': 0,
'PPX3': 0,
'PPX4': 0,
'RBX1': 20,
'RBX2': 15,
'RBX3': 0,
'RCX1': 1,
'REX1': 0,
'REX2': 0,
'RHX1': 0,
'QSX1': 0,
'QSX2': 0,
'QSX3': 0,
'QSX4': 5,
'QSX5': 1,
'QSX6': 10,
'QSX7': 0,
'QSX8': 0,
'QSX9': 0.4,
'QSX10': 0,
'QSX11': 5,
'QSX12': 0,
'QSX13': 0,
'QSX14': 0,
'PPMX1': 0,
'PCY1': 1.3,
'PDY1': 1.1,
'PDY2': -0.15,
'PDY3': 0,
'PEY1': 0,
'PEY2': 0,
'PEY3': 0,
'PEY4': 0,
'PEY5': 0,
'PKY1': -20,
'PKY2': 1,
'PKY3': 0,
'PKY4': 2,
'PKY5': 0,
'PKY6': -1,
'PKY7': 0,
'PHY1': 0,
'PHY2': 0,
'PVY1': 0,
'PVY2': 0,
'PVY3': 0,
'PVY4': 0,
'PPY1': 0,
'PPY2': 0,
'PPY3': 0,
'PPY4': 0,
'PPY5': 0,
'RBY1': 10,
'RBY2': 10,
'RBY3': 0,
'RBY4': 0,
'RCY1': 1,
'REY1': 0,
'REY2': 0,
'RHY1': 0,
'RHY2': 0,
'RVY1': 0,
'RVY2': 0,
'RVY3': 0,
'RVY4': 20,
'RVY5': 2,
'RVY6': 10,
'QSY1': 0.01,
'QSY2': 0,
'QSY3': 4.0E-4,
'QSY4': 4.0E-5,
'QSY5': 0,
'QSY6': 0,
'QSY7': 0.85,
'QSY8': -0.4,
'QBZ1': 10,
'QBZ2': 0,
'QBZ3': 0,
'QBZ4': 0,
'QBZ5': 0,
'QBZ9': 10,
'QBZ10': 0,
'QCZ1': 1.1,
'QDZ1': 0.12,
'QDZ2': 0,
'QDZ3': 0,
'QDZ4': 0,
'QDZ6': 0,
'QDZ7': 0,
'QDZ8': -0.05,
'QDZ9': 0,
'QDZ10': 0,
'QDZ11': 0,
'QEZ1': 0,
'QEZ2': 0,
'QEZ3': 0,
'QEZ4': 0,
'QEZ5': 0,
'QHZ1': 0,
'QHZ2': 0,
'QHZ3': 0,
'QHZ4': 0,
'PPZ1': 0,
'PPZ2': 0,
'SSZ1': 0,
'SSZ2': 0,
'SSZ3': 0,
'SSZ4': 0,
'PDXP1': 0.4,
'PDXP2': 0,
'PDXP3': 0,
'PKYP1': 1,
'PDYP1': 0.4,
'PDYP2': 0,
'PDYP3': 0,
'PDYP4': 0,
'PHYP1': 1,
'PHYP2': 0.15,
'PHYP3': 0,
'PHYP4': -4,
'PECP1': 0.5,
'PECP2': 0,
'QDTP1': 10,
'QCRP1': 0.2,
'QCRP2': 0.1,
'QBRP1': 0.1,
'QDRP1': 1,
'FUNCTION_NAME': 'default',
'SWITCH_INTEG': 0,
'Q_FCY2': 0,
'Q_CAM1': 0,
'Q_CAM2': 0,
'Q_CAM3': 0,
'Q_FYS1': 0,
'Q_FYS2': 0,
'Q_FYS3': 0,
'ENV_C1': 0,
'ENV_C2': 0,
'Q_A1': 0,
'Q_A2': 0,
'PHY3': 0,
'PTX1': 0,
'PTX2': 0,
'PTX3': 0,
'PTY1': 0,
'PTY2': 0,
'LSGKP': 1,
'LSGAL': 1,
}
# Attempt to open the file
try:
with open(file_path, 'r') as file:
lines = file.readlines()
except FileNotFoundError:
raise FileNotFoundError(f"The tire property file located at: '{file_path}' cannot be opened")
# Process each line in the file
for line in lines:
line = line.strip()
if line and not line.startswith(('$', '!', '[')):
param, value = line.split('=')[0].strip(), line.split('=')[1].split('$')[0].strip()
try:
# Convert to float if possible, except for specific string fields
if param not in ['FILE_TYPE', 'FILE_FORMAT', 'LENGTH', 'FORCE', 'ANGLE', 'MASS', 'TIME', 'TYRESIDE', 'PROPERTY_FILE_FORMAT']:
tir_params[param] = float(value)
else:
tir_params[param] = value
except ValueError:
pass # Skip conversion if the value is not a number
return tir_params
def dump_yaml(tir_params, path, name):
print(f"Saving {name+'.yaml'} file to: {path} ...")
with open(path + name + '.yaml', 'w') as outfile:
yaml.dump(tir_params, outfile)
outfile.close()
# Read file and then save to yamls
tir_params = read_tir(TIR_file)
dump_yaml(tir_params, save_path, args.filename)