コード例 #1
0
def simple_run():
    """
    Example of how to extract the acceleration curves of a vehicle and the
    corresponding plot. The final acceleration curvers (Curves), the engine
    acceleration potential curves (poly_spline), before the calculation of the
    resistances and the limitation due to max possible acceleration
    (friction).

    """
    # A sample car id from the database
    car_id = 35135
    # The gear shifting style as described in the TRR paper.
    gs_style = 0.8

    # How to use co2mpas_driver library
    # You can also pass vehicle database path db_path='path to vehicle db'
    sol = driver(dict(vehicle_id=car_id, inputs=dict(inputs=dict(
        gear_shifting_style=gs_style, degree=4, use_linear_gs=True,
        use_cubic=False))))[
        'outputs']
    # driver.plot(1)
    # poly_spline = sol['poly_spline']
    for curve in sol['discrete_acceleration_curves']:
        sp_bins = list(curve['x'])
        acceleration = list(curve['y'])
        plt.plot(sp_bins, acceleration, 'o')
    '''import vehicle object, curves and gear shifting strategy'''

    plt.show()

    return 0
コード例 #2
0
def simple_run():
    """
    Vehicle simulation.

    :return:
    """

    # A sample car id from the database
    car_id = 8188
    # The gear shifting style as described in the TRR paper.
    gs_style = 0.99

    # The desired speed
    vdes = 124 / 3.6

    # Current speed
    v_start = 0

    # The simulation step in seconds
    sim_step = 0.1

    # The driving style as described in the TRR paper.
    driver_style = 0.2

    # Duration of the simulation in seconds.
    duration = 100

    # sample time series
    times = np.arange(0, duration + sim_step, sim_step)

    sol = driver(
        dict(vehicle_id=car_id,
             inputs=dict(inputs=dict(gear_shifting_style=gs_style,
                                     desired_velocity=vdes,
                                     starting_velocity=v_start,
                                     degree=4,
                                     driver_style=driver_style,
                                     sim_start=0,
                                     sim_step=sim_step,
                                     duration=duration,
                                     use_linear_gs=True,
                                     use_cubic=False))))['outputs']
    velocities = sol['velocities']
    accelerations = sol['accelerations']
    # driver.plot(1)
    plt.figure('Speed-Acceleration')
    plt.plot(velocities[1:], accelerations[1:])
    plt.grid()

    plt.figure('Time-Speed')
    plt.plot(times, velocities[1:])
    plt.grid()
    plt.figure('Acceleration-Time')
    plt.plot(times, accelerations[1:])
    plt.grid()

    plt.show()
    return 0
コード例 #3
0
def run_simulation(db, car_id, ds, v_start, gs, v_des, sim_start, sim_step,
                   duration, plot):
    """
        This script runs simulation and plots the final acceleration versus
        velocity graph of the vehicle.
    :return:
    """
    driver_model = driver(
        dict(
            vehicle_id=car_id,
            db_path=db,
            inputs=dict(
                inputs={
                    "gear_shifting_style": gs,
                    "starting_velocity": v_start,
                    "driver_style": ds,
                    "desired_velocity": v_des,
                    "sim_start": sim_start,
                    "sim_step": sim_step,
                    "duration": duration,
                }),
        ))
    if plot:
        driver_model.plot()
    outputs = driver_model["outputs"]
    discrete_acceleration_curves = outputs["discrete_acceleration_curves"]
    fig = plt.figure()
    for curve in discrete_acceleration_curves:
        sp_bins = list(curve["x"])
        acceleration = list(curve["y"])
        plt.plot(sp_bins, acceleration)
    plt.plot(outputs["velocities"][1:], outputs["accelerations"][1:])
    plt.xlabel("Speed", fontsize=18)
    plt.ylabel("Acceleration", fontsize=16)
    plt.legend([
        "acceleration per gear 0",
        "acceleration per gear 1",
        "acceleration per gear 2",
        "acceleration per gear 3",
        "acceleration per gear 4",
        "final acceleration",
    ])
    plt.grid()
    plt.show()
    return 0
コード例 #4
0
def run_simulation(db, car_id, ds, v_start, gs, v_des, sim_start, sim_step,
                   duration, plot):
    """
        This script runs simulation and plots the final acceleration versus
        velocity graph of the vehicle.
    :return:
    """
    driver_model = driver(
        dict(vehicle_id=car_id,
             db_path=db,
             inputs=dict(
                 inputs={
                     'gear_shifting_style': gs,
                     'starting_velocity': v_start,
                     'driver_style': ds,
                     'desired_velocity': v_des,
                     'sim_start': sim_start,
                     'sim_step': sim_step,
                     'duration': duration
                 })))
    if plot:
        driver_model.plot()
    outputs = driver_model['outputs']
    discrete_acceleration_curves = outputs['discrete_acceleration_curves']
    fig = plt.figure()
    for curve in discrete_acceleration_curves:
        sp_bins = list(curve['x'])
        acceleration = list(curve['y'])
        plt.plot(sp_bins, acceleration)
    plt.plot(outputs['velocities'][1:], outputs['accelerations'][1:])
    plt.xlabel('Speed', fontsize=18)
    plt.ylabel('Acceleration', fontsize=16)
    plt.legend([
        'acceleration per gear 0', 'acceleration per gear 1',
        'acceleration per gear 2', 'acceleration per gear 3',
        'acceleration per gear 4', 'final acceleration'
    ])
    plt.grid()
    plt.show()
    return 0
コード例 #5
0
def simple_run():
    car_id = 47844

    # How to use co2mpas_driver library
    # You can also pass vehicle database path db_path='path to vehicle db'
    sol = driver(dict(vehicle_id=47844))['outputs']
    discrete_acceleration_curves = sol['discrete_acceleration_curves']
    discrete_deceleration_curves = sol['discrete_deceleration_curves']
    # start = sol['start']
    # stop = sol['stop']
    # driver.plot(1)

    for d in discrete_acceleration_curves:
        plt.plot(d['x'], d['y'])
        plt.grid()

    for d in discrete_deceleration_curves:
        plt.plot(d['x'], d['y'])
        plt.grid()
    plt.show()

    return 0
コード例 #6
0
def simple_run():
    car_id = 39393
    gs_style = 0.8  # gear shifting can take value from 0(timid driver)
    degree = 2

    # How to use co2mpas_driver library
    # You can also pass vehicle database path db_path='path to vehicle db'
    sol = driver(
        dict(vehicle_id=car_id,
             inputs=dict(inputs=dict(gear_shifting_style=gs_style,
                                     degree=degree,
                                     use_linear_gs=True,
                                     use_cubic=False))))['outputs']
    discrete_acceleration_curves = sol['discrete_acceleration_curves']
    # driver.plot(1)
    for curve in discrete_acceleration_curves:
        sp_bins = list(curve['x'])
        acceleration = list(curve['y'])
        plt.plot(sp_bins, acceleration)
    plt.show()

    return 0
コード例 #7
0
def simple_run():
    """
    Test vehicle simulation.

    :return:
    """
    veh_ids = [39393, 8188, 40516, 35452, 40225, 7897, 7972, 41388, 5766,
               9645, 9639, 5798, 8280, 34271, 34265, 6378, 39723, 34092, 2592,
               5635, 5630, 7661, 7683]
    v_des = 124/3.6
    v_start = 0
    dt = 0.1
    times = np.arange(0, 100, dt)

    vehicles = [driver(dict(vehicle_id=i, inputs=dict(inputs=dict(
        gear_shifting_style=1, driver_style=1, starting_velocity=0,
        duration=100, sim_start=0, sim_step=dt, use_linear_gs=True,
        use_cubic=False))))['outputs']['driver_simulation_model'] for i in
                veh_ids]
    res = {}
    for myt in times:
        for my_veh in vehicles:
            if myt == times[0]:
                my_veh.reset(v_start)
                res[my_veh] = {'accel': [0], 'speed': [v_start],
                               'position': [0], 'gear': [0]}
                continue

            gear, next_velocity, acc, position = my_veh(dt, v_des)
            res[my_veh]['accel'].append(acc)
            res[my_veh]['speed'].append(next_velocity)
            res[my_veh]['gear'].append(gear)
            res[my_veh]['position'].append(position)

    for my_veh in vehicles:
        plt.figure('Acceleration-Speed')
        plt.plot(res[my_veh]['speed'], res[my_veh]['accel'])
        plt.show()
    return 0
コード例 #8
0
def simple_run():
    car_id = 27748
    gs_style = 1
    degree = 2

    # How to use co2mpas_driver library
    # You can also pass vehicle database path db_path='path to vehicle db'
    sol = driver(
        dict(vehicle_id=car_id,
             inputs=dict(inputs=dict(gear_shifting_style=gs_style,
                                     gedree=degree,
                                     use_linear_gs=False,
                                     use_cubic=True))))['outputs']
    # driver.plot(1)
    gs = sol['gs']
    coefs_per_gear = sol['coefs_per_gear']
    speed_per_gear = sol['speed_per_gear']
    acc_per_gear = sol['acc_per_gear']

    degree = len(coefs_per_gear[0]) - 1
    vars = np.arange(degree, -1, -1)

    plt.figure('speed acceleration regression results of degree = ' +
               str(degree))
    for gear in gs:
        plt.plot([gear, gear], [0, 5])

    for speeds, acceleration, fit_coef in zip(speed_per_gear, acc_per_gear,
                                              coefs_per_gear):
        plt.plot(speeds, acceleration)

        # x_new = np.linspace(speeds[0], speeds[-1], 100)
        x_new = np.arange(speeds[0], speeds[-1], 0.1)
        a_new = np.array([np.dot(fit_coef, np.power(i, vars)) for i in x_new])

        plt.plot(x_new, a_new)

    plt.show()
コード例 #9
0
def simple_run():
    car_id = 40516
    gs_style = 0.8
    degree = 4

    # You can also pass vehicle database path db_path='path to vehicle db'
    sol = driver(
        dict(vehicle_id=car_id,
             inputs=dict(inputs=dict(gear_shifting_style=gs_style,
                                     degree=degree,
                                     use_linear_gs=True,
                                     use_cubic=False))))['outputs']

    # start = sol['start']  # Start/stop speed for each gear
    # stop = sol['stop']
    # sp_bins = sol['sp_bins']
    # full_load_speeds = sol['full_load_speeds']  # Full load curves of speed
    # and torque
    # full_load_torque = sol['full_load_torque']
    # speed_per_gear = sol['speed_per_gear']  # speed and acceleration ranges
    # and poitns for each gear
    # acc_per_gear = sol['acc_per_gear']
    # car_res_curve = sol['car_res_curve']  # get resistances
    # car_res_curve_force = sol['car_res_curve_force']
    # curves = sol['curves']
    # gs = sol['gs']
    # poly_spline = sol['poly_spline']  # extract speed acceleration Splines
    discrete_acceleration_curves = sol['discrete_acceleration_curves']
    # driver.plot(1)
    for curve in discrete_acceleration_curves:
        sp_bins = list(curve['x'])
        acceleration = list(curve['y'])
        plt.plot(sp_bins, acceleration)
    plt.show()

    return 0
コード例 #10
0
def simple_run():
    """
     Function "light_co2mpas_series" computes the CO2 emissions in grams for a
     series of speed profile. If the gear-shifting is not given as input it
     uses the an internal function to compute the current gear.

    """
    car_id = 35135

    # Sample speed profile.
    sp = [0.075647222, 0.138130556, 0.165027778, 0.093338889, 0.050647222,
          0.073841667, 0.067722222, 0.041172222,
          0.094272222, 0.240147222, 0.421988889, 0.601022222, 0.805477778,
          1.067511111, 1.360083333, 1.650283333, 1.913175,
          2.176333333, 2.444797222, 2.700288889, 2.946313889, 3.189297222,
          3.448358333, 3.704702778, 3.940416667,
          4.130133333, 4.260580556, 4.3409, 4.388002778, 4.426941667,
          4.455319444, 4.476166667, 4.515033333, 4.539722222,
          4.54225, 4.563194444, 4.616366667, 4.794819444, 4.925277778,
          5.010258333, 5.270727778, 5.526880556, 5.698258333,
          5.863777778, 6.025444444, 6.178002778, 6.320294444, 6.455533333,
          6.586655556, 6.7208, 6.850394444, 6.973597222,
          7.076808333, 7.125569444, 7.125688889, 7.095327778, 7.045141667,
          6.987052778, 6.942780556, 6.943469444,
          6.972669444, 6.987636111, 6.995147222, 7.01125, 7.034722222,
          7.064722222, 7.095263889, 7.144930556, 7.228544444,
          7.351388889, 7.516902778, 7.705436111, 7.912636111, 8.142141667,
          8.384738889, 8.638480556, 8.896288889,
          9.157808333, 9.427988889, 9.695, 9.931672222, 10.09765, 10.17970556,
          10.211575, 10.22029444, 10.21634444,
          10.22308056, 10.25685278, 10.32316667, 10.43054444, 10.55200833,
          10.67687222, 10.81433889, 10.94932778,
          11.08748889, 11.23079444, 11.37732778, 11.52675278, 11.67602222,
          11.83357778, 11.99132222, 12.127225, 12.217525,
          12.27826111, 12.33689444, 12.41279167, 12.52231944, 12.648375,
          12.78034722, 12.91521111, 13.04194444, 13.16066111,
          13.28333333, 13.40571944, 13.53175556, 13.64644444, 13.75571111,
          13.8666, 13.93222222, 13.95751111, 13.96354444,
          13.95462222, 13.92623333, 13.89566111, 13.88161111, 13.90078611,
          13.92424167, 13.95039722, 13.98454444,
          14.02729722, 14.07866111, 14.15, 14.24663333, 14.3537, 14.45984444,
          14.58112778, 14.7043, 14.83035556,
          14.96040278, 15.09104722, 15.22573889, 15.36123611, 15.49455833,
          15.63419444, 15.77003889, 15.90303333,
          16.04134167, 16.17628056, 16.30461111, 16.4286, 16.54910556,
          16.66977778, 16.77255278, 16.85622222, 16.94144444,
          17.02344444, 17.09977778, 17.17553056, 17.24705278, 17.31889444,
          17.39001389, 17.44721389]

    # Gear shifting points as can be derived from
    gs = [5.715589018826222, 10.974960637586783, 16.396951475513028,
          22.832902038337586]
    sim_step = 0.1

    # You can also pass vehicle database path db_path='path to vehicle db'
    sol = driver(dict(vehicle_id=car_id, inputs=dict(inputs=dict(
        gs=gs, velocities=sp, sim_step=sim_step))))[
        'outputs']
    fp = sol['fp']
    # driver.plot(1)

    plt.plot(fp)
    plt.show()
コード例 #11
0
def simple_run():
    """
    This example computes and plots the driving trajectories with the varying desired speed.

    """
    # A sample car id from the database = {
    car_id_db = {
        "fuel_engine": [
            35135,
            39393,
            27748,
            8188,
            40516,
            35452,
            40225,
            7897,
            7972,
            41388,
            5766,
            9645,
            9639,
            5798,
            8280,
            34271,
            34265,
            6378,
            39723,
            34092,
            2592,
            5635,
            5630,
            7661,
            7683,
            8709,
            9769,
            1872,
            10328,
            35476,
            41989,
            26799,
            26851,
            27189,
            23801,
            3079,
            36525,
            47766,
            6386,
            33958,
            33986,
            5725,
            5718,
            36591,
            4350,
            39396,
            40595,
            5909,
            5897,
            5928,
            5915,
            40130,
            42363,
            34760,
            34766,
            1835,
            36101,
            42886,
            1431,
            46547,
            44799,
            41045,
            39820,
            34183,
            34186,
            20612,
            20605,
            1324,
            9882,
            4957,
            5595,
            18831,
            18833,
            9575,
            5380,
            9936,
            7995,
            6331,
            18173,
            34286,
            34279,
            20706,
            34058,
            34057,
            24268,
            19028,
            19058,
            7979,
            22591,
            34202,
            40170,
            44599,
            5358,
            5338,
            34015,
            9872,
            9856,
            6446,
            8866,
            9001,
            9551,
            6222,
        ],
        "electric_engine": [47844],
    }
    car_id = 47844

    # The desired speed
    vdes = 124 / 3.6

    # Current speed
    v_start = 0

    # The simulation step in seconds
    sim_step = 0.1

    # The driving style as described in the TRR paper.
    driver_style = 0.6

    # Duration of the simulation in seconds.
    duration = 300

    # sample time series
    times = np.arange(0, duration + sim_step, sim_step)

    # core model, this will select and execute the proper functions for the given inputs and returns the output
    # You can also pass vehicle database path db_path='path to vehicle db'
    if car_id in car_id_db["electric_engine"]:
        my_veh = driver(
            dict(
                vehicle_id=car_id,
                inputs=dict(inputs=dict(
                    starting_velocity=v_start,
                    driver_style=driver_style,
                    sim_start=0,
                    sim_step=sim_step,
                    duration=duration,
                    use_linear_gs=True,
                    use_cubic=False,
                )),
            ))["outputs"]["driver_simulation_model"]
    else:
        # The gear shifting style as described in the TRR paper.
        gs_style = 0.8
        my_veh = driver(
            dict(
                vehicle_id=car_id,
                inputs=dict(inputs=dict(
                    gear_shifting_style=gs_style,
                    starting_velocity=v_start,
                    driver_style=driver_style,
                    sim_start=0,
                    sim_step=sim_step,
                    duration=duration,
                    degree=4,
                    use_linear_gs=True,
                    use_cubic=False,
                )),
            ))["outputs"]["driver_simulation_model"]
    # Plots workflow of the core model, this will automatically open an internet browser and show the work flow
    # of the core model. you can click all the rectangular boxes to see in detail sub models like load, model,
    # write and plot.
    # you can uncomment to plot the work flow of the model
    # driver.plot(1)  # Note: run your IDE as Administrator if file permission error.

    f_des = interp1d(
        [0, 210, 700, 1050, 1400, 3150, 4550, 5250],  # Position (m)
        [20, 20, 30, 5, 25, 35, 15, 0],  # Desired speed (m/s)
        kind="next",
    )
    res = {}
    for myt in times:
        if myt == times[0]:
            my_veh.reset(v_start)
            res = {
                "accel": [0],
                "speed": [v_start],
                "position": [0],
                "gear": [0],
                "v_des": [f_des(0)],
                "fc": [0],
            }
            continue
        res["v_des"].append(f_des(res["position"][-1]))
        gear, gear_count, next_velocity, acc = my_veh(sim_step,
                                                      res["v_des"][-1])

        if car_id in car_id_db["electric_engine"]:
            fc = 0
        else:
            fc = my_veh.calculate_fuel_consumption(next_velocity, acc, gear,
                                                   gear_count, sim_step)

        res["accel"].append(acc)
        res["speed"].append(next_velocity)
        res["gear"].append(gear)
        res["position"].append(res["position"][-1] + next_velocity * sim_step)
        res["fc"].append(fc)

    fig = plt.figure("Time-Speed")
    plt.plot(times,
             res["speed"],
             label=f"Simulation car:{car_id}, DS: {driver_style}")
    plt.plot(times, res["v_des"], label=f"Desired speed (m/s)")
    plt.legend()
    fig.suptitle("Speed over time", x=0.54, y=1, fontsize=12)
    plt.xlabel("Time (s)", fontsize=14)
    plt.ylabel("Speed (m/s)", fontsize=12)
    plt.grid()

    fig = plt.figure("Time-Acceleration")
    plt.plot(times,
             res["accel"],
             label=f"Simulation car:{car_id}, DS: {driver_style}")
    plt.legend()
    fig.suptitle("Acceleration over time", x=0.54, y=1, fontsize=12)
    plt.xlabel("Time (s)", fontsize=14)
    plt.ylabel("Acceleration (m/s2)", fontsize=12)
    plt.grid()

    if car_id in car_id_db["electric_engine"]:
        pass
    else:
        fig = plt.figure("Time-Fuel Consumption")
        plt.plot(
            times,
            np.dot(res["fc"], sim_step),
            label=f"Simulation car:{car_id}, DS: {driver_style}",
        )
        plt.legend()
        fig.suptitle("Fuel Consumption over time", x=0.54, y=1, fontsize=12)
        plt.xlabel("Time (s)", fontsize=14)
        plt.ylabel("Fuel consumption rate (g/s)", fontsize=12)
        plt.grid()

    fig = plt.figure("Distance-Speed")
    plt.plot(
        res["position"],
        res["speed"],
        label=f"Simulation car:{car_id}, DS: {driver_style}",
    )
    plt.plot(res["position"], res["v_des"], label=f"Desired speed (m/s)")
    plt.legend()
    fig.suptitle("Speed over distance", x=0.54, y=1, fontsize=12)
    plt.xlabel("Distance (m)", fontsize=14)
    plt.ylabel("Speed (m/s)", fontsize=12)
    plt.grid()

    fig = plt.figure("Distance-Acceleration")
    plt.plot(
        res["position"],
        res["accel"],
        label=f"Simulation car:{car_id}, DS: {driver_style}",
    )
    plt.legend()
    fig.suptitle("Acceleration over distance", x=0.54, y=1, fontsize=12)
    plt.xlabel("Distance (m)", fontsize=14)
    plt.ylabel("Acceleration (m/s2)", fontsize=12)
    plt.grid()
    plt.show()
コード例 #12
0
def simple_run():
    """
    Test vehicle simulation.

    :return:
    """
    veh_ids = [
        39393,
        8188,
        40516,
        35452,
        40225,
        7897,
        7972,
        41388,
        5766,
        9645,
        9639,
        5798,
        8280,
        34271,
        34265,
        6378,
        39723,
        34092,
        2592,
        5635,
        5630,
        7661,
        7683,
    ]
    v_des = 124 / 3.6
    v_start = 0
    # coefficients of resistances in case provided by user
    f0 = 200
    f1 = 0.2
    f2 = 0.005
    dt = 0.1
    times = np.arange(0, 100, dt)

    vehicles = [(
        i,
        driver(
            dict(
                vehicle_id=i,
                inputs=dict(inputs=dict(
                    f0=f0,
                    f1=f1,
                    f2=f2,
                    gear_shifting_style=0.8,
                    driver_style=0.8,
                    starting_velocity=0,
                    duration=100,
                    sim_start=0,
                    sim_step=dt,
                    use_linear_gs=True,
                    use_cubic=False,
                )),
            ))["outputs"]["driver_simulation_model"],
    ) for i in veh_ids]
    res = {}
    for myt in times:
        for veh_id, my_veh in vehicles:
            if myt == times[0]:
                my_veh.reset(v_start)
                res[my_veh] = {"accel": [0], "speed": [v_start], "gear": [0]}
                continue

            gear, gear_count, next_velocity, acc = my_veh(dt, v_des)
            res[my_veh]["accel"].append(acc)
            res[my_veh]["speed"].append(next_velocity)
            res[my_veh]["gear"].append(gear)

    for car_id, my_veh in vehicles:
        plt.figure("Acceleration-Speed")
        plt.plot(res[my_veh]["speed"], res[my_veh]["accel"])
        plt.show()
    return 0
コード例 #13
0
def simple_run():
    """
    This sample file plots the speed/acceleration curves of the vehicle and
    regression results of 2nd degree polynomial based on gear shifting style.

    :return:
    """
    # A sample car id from the database
    car_id = 27748

    # The gear shifting style as described in the TRR paper.
    gs_style = 1

    # 2nd degree polynomial
    degree = 2

    # Core model, this will select and execute the proper functions for the given inputs and returns the output
    # You can also pass your vehicle's database path db_path='path to vehicle db'
    sol = driver(
        dict(
            vehicle_id=car_id,
            inputs=dict(inputs=dict(
                gear_shifting_style=gs_style,
                gedree=degree,
                use_linear_gs=False,
                use_cubic=True,
            )),
        ))["outputs"]
    # Plots workflow of the core model, this will automatically open an internet browser and shows the work flow
    # of the core model. you can click all the rectangular boxes to see in detail sub models like load, model,
    # write and plot.
    # you can uncomment to plot the work flow of the model
    # driver.plot(1)  # Note: run your IDE as Administrator if file permission error.

    # gear cuts based on linear gear shifting style
    gs = sol["gs"]

    # coefficients of speed acceleration relation for each gear
    # calculated using 2nd degree polynomial
    coefs_per_gear = sol["coefs_per_gear"]
    speed_per_gear = sol["speed_per_gear"]
    acc_per_gear = sol["acc_per_gear"]

    degree = len(coefs_per_gear[0]) - 1
    vars = np.arange(degree, -1, -1)

    fig = plt.figure("speed acceleration regression results of degree = " +
                     str(degree))
    for gear in gs:
        plt.plot([gear, gear], [0, 5])

    for gear, (speeds, acceleration, fit_coef) in enumerate(
            zip(speed_per_gear, acc_per_gear, coefs_per_gear)):
        plt.plot(speeds, acceleration, label=f"gear {gear}")
        x_new = np.arange(speeds[0], speeds[-1], 0.1)
        a_new = np.array([np.dot(fit_coef, np.power(i, vars)) for i in x_new])
        plt.plot(x_new, a_new, label=f"{degree} degree reg. gear {gear}")
    plt.legend()
    plt.text(46, 1.8, f"Simulation car:{car_id}, GS:{gs_style}")
    fig.suptitle(
        "Speed acceleration regression results of degree = " + str(degree),
        x=0.54,
        y=1,
        fontsize=12,
    )
    plt.xlabel("Speed (m/s)", fontsize=12)
    plt.ylabel("Acceleration (m/s2)", fontsize=12)
    plt.show()
コード例 #14
0
def simple_run():
    """
    This example computes and plots the CO2 emissions in grams for a
    simulated trajectory.

    """
    car_id = 35135

    # The gear shifting style as described in the TRR paper.
    gs_style = 0.8

    # The desired speed
    vdes = 124 / 3.6

    # Current speed
    v_start = 0

    # The simulation step in seconds
    sim_step = 0.1

    # The driving style as described in the TRR paper.
    driver_style = 0.6

    # Duration of the simulation in seconds.
    duration = 100

    # sample time series
    times = np.arange(0, duration + sim_step, sim_step)

    # core model, this will select and execute the proper functions for the given inputs and returns the output
    # You can also pass vehicle database path db_path='path to vehicle db'
    sol = driver(
        dict(
            vehicle_id=car_id,
            inputs=dict(inputs=dict(
                gear_shifting_style=gs_style,
                desired_velocity=vdes,
                starting_velocity=v_start,
                driver_style=driver_style,
                sim_start=0,
                sim_step=sim_step,
                duration=duration,
                degree=4,
                use_linear_gs=True,
                use_cubic=False,
            )),
        ))["outputs"]
    # Plots workflow of the core model, this will automatically open an internet browser and show the work flow
    # of the core model. you can click all the rectangular boxes to see in detail sub models like load, model,
    # write and plot.
    # you can uncomment to plot the work flow of the model
    # driver.plot(1)  # Note: run your IDE as Administrator if file permission error.

    driver_simulation_model = sol["driver_simulation_model"]

    res = {}
    for myt in times:
        if myt == times[0]:
            driver_simulation_model.reset(v_start)
            res = {
                "accel": [0],
                "speed": [v_start],
                "position": [0],
                "gear": [0]
            }
            continue
        gear, next_velocity, acc, position = driver_simulation_model(
            sim_step, vdes)
        res["accel"].append(acc)
        res["speed"].append(next_velocity)
        res["gear"].append(gear)
        res["position"].append(position)

    fig = plt.figure("Speed-Acceleration")
    plt.plot(
        res["speed"],
        res["accel"],
        label=f"Simulation car:{car_id}, DS: {driver_style}, GS:{gs_style}",
    )
    plt.legend()
    fig.suptitle("Acceleration over Speed", x=0.54, y=1, fontsize=12)
    plt.xlabel("Speed (m/s)", fontsize=14)
    plt.ylabel("Acceleration (m/s2)", fontsize=12)
    plt.grid()
    plt.show()

    fp = sol["fp"]

    fig = plt.figure("Speed-co2")
    plt.plot(
        res["speed"],
        fp,
        label=f"Simulation car:{car_id}, DS: {driver_style}, GS:{gs_style}",
    )
    plt.legend()
    fig.suptitle("Co2 emission for a simulated trajectory",
                 x=0.54,
                 y=1,
                 fontsize=12)
    plt.xlabel("Speed (m/s)", fontsize=12)
    plt.ylabel("Co2 (gms)", fontsize=12)
    plt.show()