def __init__(self, CP, sendcan=None):
self.CP = CP
self.VM = VehicleModel(CP)
self.frame = 0
self.can_invalid_count = 0
self.gas_pressed_prev = False
self.brake_pressed_prev = False
self.cruise_enabled_prev = False
# *** init the major players ***
self.CS = CarState(CP)
self.cp = get_can_parser(CP)
# sending if read only is False
if sendcan is not None:
self.sendcan = sendcan
self.CC = CarController(self.cp.dbc_name, CP.enableCamera, self.VM)
class CarInterface(object):
def __init__(self, CP, sendcan=None):
self.CP = CP
self.VM = VehicleModel(CP)
self.frame = 0
self.can_invalid_count = 0
self.gas_pressed_prev = False
self.brake_pressed_prev = False
self.cruise_enabled_prev = False
# *** init the major players ***
self.CS = CarState(CP)
self.cp = get_can_parser(CP)
# sending if read only is False
if sendcan is not None:
self.sendcan = sendcan
self.CC = CarController(self.cp.dbc_name, CP.enableCamera, self.VM)
@staticmethod
def compute_gb(accel, speed):
return float(accel) / 3.0
@staticmethod
def calc_accel_override(a_ego, a_target, v_ego, v_target):
return 1.0
@staticmethod
def get_params(candidate, fingerprint):
# kg of standard extra cargo to count for drive, gas, etc...
std_cargo = 136
ret = car.CarParams.new_message()
ret.carName = "ford"
ret.carFingerprint = candidate
ret.safetyModel = car.CarParams.SafetyModels.ford
# pedal
ret.enableCruise = True
# FIXME: hardcoding honda civic 2016 touring params so they can be used to
# scale unknown params for other cars
mass_civic = 2923. * CV.LB_TO_KG + std_cargo
wheelbase_civic = 2.70
centerToFront_civic = wheelbase_civic * 0.4
centerToRear_civic = wheelbase_civic - centerToFront_civic
rotationalInertia_civic = 2500
tireStiffnessFront_civic = 85400
tireStiffnessRear_civic = 90000
ret.steerKiBP, ret.steerKpBP = [[0.], [0.]]
ret.wheelbase = 2.85
ret.steerRatio = 14.8
ret.mass = 3045. * CV.LB_TO_KG + std_cargo
ret.steerKpV, ret.steerKiV = [[0.01], [0.005]] # TODO: tune this
ret.steerKf = 1. / MAX_ANGLE # MAX Steer angle to normalize FF
ret.steerActuatorDelay = 0.1 # Default delay, not measured yet
ret.steerRateCost = 1.0
f = 1.2
tireStiffnessFront_civic *= f
tireStiffnessRear_civic *= f
ret.centerToFront = ret.wheelbase * 0.44
ret.longPidDeadzoneBP = [0., 9.]
ret.longPidDeadzoneV = [0., .15]
# min speed to enable ACC. if car can do stop and go, then set enabling speed
# to a negative value, so it won't matter.
ret.minEnableSpeed = -1.
centerToRear = ret.wheelbase - ret.centerToFront
# TODO: get actual value, for now starting with reasonable value for
# civic and scaling by mass and wheelbase
ret.rotationalInertia = rotationalInertia_civic * \
ret.mass * ret.wheelbase**2 / (mass_civic * wheelbase_civic**2)
# TODO: start from empirically derived lateral slip stiffness for the civic and scale by
# mass and CG position, so all cars will have approximately similar dyn behaviors
ret.tireStiffnessFront = tireStiffnessFront_civic * \
ret.mass / mass_civic * \
(centerToRear / ret.wheelbase) / (centerToRear_civic / wheelbase_civic)
ret.tireStiffnessRear = tireStiffnessRear_civic * \
ret.mass / mass_civic * \
(ret.centerToFront / ret.wheelbase) / (centerToFront_civic / wheelbase_civic)
# no rear steering, at least on the listed cars above
ret.steerRatioRear = 0.
ret.steerControlType = car.CarParams.SteerControlType.angle
# steer, gas, brake limitations VS speed
ret.steerMaxBP = [0.] # breakpoints at 1 and 40 kph
ret.steerMaxV = [1.0] # 2/3rd torque allowed above 45 kph
ret.gasMaxBP = [0.]
ret.gasMaxV = [0.5]
ret.brakeMaxBP = [5., 20.]
ret.brakeMaxV = [1., 0.8]
ret.enableCamera = not any(
x for x in [970, 973, 984] if x in fingerprint)
cloudlog.warn("ECU Camera Simulated: %r", ret.enableCamera)
ret.steerLimitAlert = False
ret.stoppingControl = False
ret.startAccel = 0.0
ret.longitudinalKpBP = [0., 5., 35.]
ret.longitudinalKpV = [3.6, 2.4, 1.5]
ret.longitudinalKiBP = [0., 35.]
ret.longitudinalKiV = [0.54, 0.36]
return ret
# returns a car.CarState
def update(self, c):
# ******************* do can recv *******************
canMonoTimes = []
self.cp.update(int(sec_since_boot() * 1e9), False)
self.CS.update(self.cp)
# create message
ret = car.CarState.new_message()
# speeds
ret.vEgo = self.CS.v_ego
ret.vEgoRaw = self.CS.v_ego_raw
ret.standstill = self.CS.standstill
ret.wheelSpeeds.fl = self.CS.v_wheel_fl
ret.wheelSpeeds.fr = self.CS.v_wheel_fr
ret.wheelSpeeds.rl = self.CS.v_wheel_rl
ret.wheelSpeeds.rr = self.CS.v_wheel_rr
# steering wheel
ret.steeringAngle = self.CS.angle_steers
ret.steeringPressed = self.CS.steer_override
# gas pedal
ret.gas = self.CS.user_gas / 100.
ret.gasPressed = self.CS.user_gas > 0.0001
ret.brakePressed = self.CS.brake_pressed
ret.brakeLights = self.CS.brake_lights
ret.cruiseState.enabled = not (self.CS.pcm_acc_status in [0, 3])
ret.cruiseState.speed = self.CS.v_cruise_pcm
ret.cruiseState.available = self.CS.pcm_acc_status != 0
ret.genericToggle = self.CS.generic_toggle
# events
events = []
if not self.CS.can_valid:
self.can_invalid_count += 1
if self.can_invalid_count >= 5:
events.append(
create_event('commIssue',
[ET.NO_ENTRY, ET.IMMEDIATE_DISABLE]))
else:
self.can_invalid_count = 0
if self.CS.steer_error:
events.append(
create_event(
'steerUnavailable',
[ET.NO_ENTRY, ET.IMMEDIATE_DISABLE, ET.PERMANENT]))
# enable request in prius is simple, as we activate when Toyota is active (rising edge)
if ret.cruiseState.enabled and not self.cruise_enabled_prev:
events.append(create_event('pcmEnable', [ET.ENABLE]))
elif not ret.cruiseState.enabled:
events.append(create_event('pcmDisable', [ET.USER_DISABLE]))
# disable on pedals rising edge or when brake is pressed and speed isn't zero
if (ret.gasPressed and not self.gas_pressed_prev) or \
(ret.brakePressed and (not self.brake_pressed_prev or ret.vEgo > 0.001)):
events.append(
create_event('pedalPressed', [ET.NO_ENTRY, ET.USER_DISABLE]))
if ret.gasPressed:
events.append(create_event('pedalPressed', [ET.PRE_ENABLE]))
if self.CS.lkas_state not in [
2, 3
] and ret.vEgo > 13. * CV.MPH_TO_MS and ret.cruiseState.enabled:
events.append(
create_event('steerTempUnavailableMute', [ET.WARNING]))
ret.events = events
ret.canMonoTimes = canMonoTimes
self.gas_pressed_prev = ret.gasPressed
self.brake_pressed_prev = ret.brakePressed
self.cruise_enabled_prev = ret.cruiseState.enabled
return ret.as_reader()
# pass in a car.CarControl
# to be called @ 100hz
def apply(self, c, perception_state=log.Live20Data.new_message()):
self.CC.update(self.sendcan, c.enabled, self.CS, self.frame,
c.actuators, c.hudControl.visualAlert,
c.cruiseControl.cancel)
self.frame += 1
return False
