openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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from cereal import car
from common.conversions import Conversions as CV
from common.numpy_fast import mean
from common.filter_simple import FirstOrderFilter
from common.realtime import DT_CTRL
from opendbc.can.can_define import CANDefine
from opendbc.can.parser import CANParser
from selfdrive.car.interfaces import CarStateBase
from selfdrive.car.toyota.values import ToyotaFlags, CAR, DBC, STEER_THRESHOLD, NO_STOP_TIMER_CAR, TSS2_CAR, EPS_SCALE
class CarState(CarStateBase):
def __init__(self, CP):
super().__init__(CP)
can_define = CANDefine(DBC[CP.carFingerprint]["pt"])
self.shifter_values = can_define.dv["GEAR_PACKET"]["GEAR"]
self.eps_torque_scale = EPS_SCALE[CP.carFingerprint] / 100.
# On cars with cp.vl["STEER_TORQUE_SENSOR"]["STEER_ANGLE"]
# the signal is zeroed to where the steering angle is at start.
# Need to apply an offset as soon as the steering angle measurements are both received
self.accurate_steer_angle_seen = False
self.angle_offset = FirstOrderFilter(None, 60.0, DT_CTRL, initialized=False)
self.low_speed_lockout = False
self.acc_type = 1
def update(self, cp, cp_cam):
ret = car.CarState.new_message()
ret.doorOpen = any([cp.vl["BODY_CONTROL_STATE"]["DOOR_OPEN_FL"], cp.vl["BODY_CONTROL_STATE"]["DOOR_OPEN_FR"],
cp.vl["BODY_CONTROL_STATE"]["DOOR_OPEN_RL"], cp.vl["BODY_CONTROL_STATE"]["DOOR_OPEN_RR"]])
ret.seatbeltUnlatched = cp.vl["BODY_CONTROL_STATE"]["SEATBELT_DRIVER_UNLATCHED"] != 0
ret.brakePressed = cp.vl["BRAKE_MODULE"]["BRAKE_PRESSED"] != 0
ret.brakeHoldActive = cp.vl["ESP_CONTROL"]["BRAKE_HOLD_ACTIVE"] == 1
if self.CP.enableGasInterceptor:
ret.gas = (cp.vl["GAS_SENSOR"]["INTERCEPTOR_GAS"] + cp.vl["GAS_SENSOR"]["INTERCEPTOR_GAS2"]) / 2.
ret.gasPressed = ret.gas > 15
else:
# TODO: find a new, common signal
msg = "GAS_PEDAL_HYBRID" if (self.CP.flags & ToyotaFlags.HYBRID) else "GAS_PEDAL"
ret.gas = cp.vl[msg]["GAS_PEDAL"]
ret.gasPressed = cp.vl["PCM_CRUISE"]["GAS_RELEASED"] == 0
ret.wheelSpeeds = self.get_wheel_speeds(
cp.vl["WHEEL_SPEEDS"]["WHEEL_SPEED_FL"],
cp.vl["WHEEL_SPEEDS"]["WHEEL_SPEED_FR"],
cp.vl["WHEEL_SPEEDS"]["WHEEL_SPEED_RL"],
cp.vl["WHEEL_SPEEDS"]["WHEEL_SPEED_RR"],
)
ret.vEgoRaw = mean([ret.wheelSpeeds.fl, ret.wheelSpeeds.fr, ret.wheelSpeeds.rl, ret.wheelSpeeds.rr])
ret.vEgo, ret.aEgo = self.update_speed_kf(ret.vEgoRaw)
ret.standstill = ret.vEgoRaw < 0.001
ret.steeringAngleDeg = cp.vl["STEER_ANGLE_SENSOR"]["STEER_ANGLE"] + cp.vl["STEER_ANGLE_SENSOR"]["STEER_FRACTION"]
torque_sensor_angle_deg = cp.vl["STEER_TORQUE_SENSOR"]["STEER_ANGLE"]
# On some cars, the angle measurement is non-zero while initializing
if abs(torque_sensor_angle_deg) > 1e-3 and not bool(cp.vl["STEER_TORQUE_SENSOR"]["STEER_ANGLE_INITIALIZING"]):
self.accurate_steer_angle_seen = True
if self.accurate_steer_angle_seen:
# Offset seems to be invalid for large steering angles
if abs(ret.steeringAngleDeg) < 90 and cp.can_valid:
self.angle_offset.update(torque_sensor_angle_deg - ret.steeringAngleDeg)
if self.angle_offset.initialized:
ret.steeringAngleOffsetDeg = self.angle_offset.x
ret.steeringAngleDeg = torque_sensor_angle_deg - self.angle_offset.x
ret.steeringRateDeg = cp.vl["STEER_ANGLE_SENSOR"]["STEER_RATE"]
can_gear = int(cp.vl["GEAR_PACKET"]["GEAR"])
ret.gearShifter = self.parse_gear_shifter(self.shifter_values.get(can_gear, None))
ret.leftBlinker = cp.vl["BLINKERS_STATE"]["TURN_SIGNALS"] == 1
ret.rightBlinker = cp.vl["BLINKERS_STATE"]["TURN_SIGNALS"] == 2
ret.steeringTorque = cp.vl["STEER_TORQUE_SENSOR"]["STEER_TORQUE_DRIVER"]
ret.steeringTorqueEps = cp.vl["STEER_TORQUE_SENSOR"]["STEER_TORQUE_EPS"] * self.eps_torque_scale
# we could use the override bit from dbc, but it's triggered at too high torque values
ret.steeringPressed = abs(ret.steeringTorque) > STEER_THRESHOLD
ret.steerFaultTemporary = cp.vl["EPS_STATUS"]["LKA_STATE"] not in (1, 5)
if self.CP.carFingerprint in (CAR.LEXUS_IS, CAR.LEXUS_RC):
ret.cruiseState.available = cp.vl["DSU_CRUISE"]["MAIN_ON"] != 0
ret.cruiseState.speed = cp.vl["DSU_CRUISE"]["SET_SPEED"] * CV.KPH_TO_MS
else:
ret.cruiseState.available = cp.vl["PCM_CRUISE_2"]["MAIN_ON"] != 0
ret.cruiseState.speed = cp.vl["PCM_CRUISE_2"]["SET_SPEED"] * CV.KPH_TO_MS
if self.CP.carFingerprint in TSS2_CAR:
self.acc_type = cp_cam.vl["ACC_CONTROL"]["ACC_TYPE"]
# some TSS2 cars have low speed lockout permanently set, so ignore on those cars
# these cars are identified by an ACC_TYPE value of 2.
# TODO: it is possible to avoid the lockout and gain stop and go if you
# send your own ACC_CONTROL msg on startup with ACC_TYPE set to 1
if (self.CP.carFingerprint not in TSS2_CAR and self.CP.carFingerprint not in (CAR.LEXUS_IS, CAR.LEXUS_RC)) or \
(self.CP.carFingerprint in TSS2_CAR and self.acc_type == 1):
self.low_speed_lockout = cp.vl["PCM_CRUISE_2"]["LOW_SPEED_LOCKOUT"] == 2
self.pcm_acc_status = cp.vl["PCM_CRUISE"]["CRUISE_STATE"]
if self.CP.carFingerprint in NO_STOP_TIMER_CAR or self.CP.enableGasInterceptor:
# ignore standstill in hybrid vehicles, since pcm allows to restart without
# receiving any special command. Also if interceptor is detected
ret.cruiseState.standstill = False
else:
ret.cruiseState.standstill = self.pcm_acc_status == 7
ret.cruiseState.enabled = bool(cp.vl["PCM_CRUISE"]["CRUISE_ACTIVE"])
ret.cruiseState.nonAdaptive = cp.vl["PCM_CRUISE"]["CRUISE_STATE"] in (1, 2, 3, 4, 5, 6)
ret.genericToggle = bool(cp.vl["LIGHT_STALK"]["AUTO_HIGH_BEAM"])
ret.stockAeb = bool(cp_cam.vl["PRE_COLLISION"]["PRECOLLISION_ACTIVE"] and cp_cam.vl["PRE_COLLISION"]["FORCE"] < -1e-5)
ret.espDisabled = cp.vl["ESP_CONTROL"]["TC_DISABLED"] != 0
# 2 is standby, 10 is active. TODO: check that everything else is really a faulty state
self.steer_state = cp.vl["EPS_STATUS"]["LKA_STATE"]
if self.CP.enableBsm:
ret.leftBlindspot = (cp.vl["BSM"]["L_ADJACENT"] == 1) or (cp.vl["BSM"]["L_APPROACHING"] == 1)
ret.rightBlindspot = (cp.vl["BSM"]["R_ADJACENT"] == 1) or (cp.vl["BSM"]["R_APPROACHING"] == 1)
return ret
@staticmethod
def get_can_parser(CP):
signals = [
# sig_name, sig_address
("STEER_ANGLE", "STEER_ANGLE_SENSOR"),
("GEAR", "GEAR_PACKET"),
("BRAKE_PRESSED", "BRAKE_MODULE"),
("WHEEL_SPEED_FL", "WHEEL_SPEEDS"),
("WHEEL_SPEED_FR", "WHEEL_SPEEDS"),
("WHEEL_SPEED_RL", "WHEEL_SPEEDS"),
("WHEEL_SPEED_RR", "WHEEL_SPEEDS"),
("DOOR_OPEN_FL", "BODY_CONTROL_STATE"),
("DOOR_OPEN_FR", "BODY_CONTROL_STATE"),
("DOOR_OPEN_RL", "BODY_CONTROL_STATE"),
("DOOR_OPEN_RR", "BODY_CONTROL_STATE"),
("SEATBELT_DRIVER_UNLATCHED", "BODY_CONTROL_STATE"),
("TC_DISABLED", "ESP_CONTROL"),
("BRAKE_HOLD_ACTIVE", "ESP_CONTROL"),
("STEER_FRACTION", "STEER_ANGLE_SENSOR"),
("STEER_RATE", "STEER_ANGLE_SENSOR"),
("CRUISE_ACTIVE", "PCM_CRUISE"),
("CRUISE_STATE", "PCM_CRUISE"),
("GAS_RELEASED", "PCM_CRUISE"),
("STEER_TORQUE_DRIVER", "STEER_TORQUE_SENSOR"),
("STEER_TORQUE_EPS", "STEER_TORQUE_SENSOR"),
("STEER_ANGLE", "STEER_TORQUE_SENSOR"),
("STEER_ANGLE_INITIALIZING", "STEER_TORQUE_SENSOR"),
("TURN_SIGNALS", "BLINKERS_STATE"),
("LKA_STATE", "EPS_STATUS"),
("AUTO_HIGH_BEAM", "LIGHT_STALK"),
]
checks = [
("GEAR_PACKET", 1),
("LIGHT_STALK", 1),
("BLINKERS_STATE", 0.15),
("BODY_CONTROL_STATE", 3),
("ESP_CONTROL", 3),
("EPS_STATUS", 25),
("BRAKE_MODULE", 40),
("WHEEL_SPEEDS", 80),
("STEER_ANGLE_SENSOR", 80),
("PCM_CRUISE", 33),
("STEER_TORQUE_SENSOR", 50),
]
if CP.flags & ToyotaFlags.HYBRID:
signals.append(("GAS_PEDAL", "GAS_PEDAL_HYBRID"))
checks.append(("GAS_PEDAL_HYBRID", 33))
else:
signals.append(("GAS_PEDAL", "GAS_PEDAL"))
checks.append(("GAS_PEDAL", 33))
if CP.carFingerprint in (CAR.LEXUS_IS, CAR.LEXUS_RC):
signals.append(("MAIN_ON", "DSU_CRUISE"))
signals.append(("SET_SPEED", "DSU_CRUISE"))
checks.append(("DSU_CRUISE", 5))
else:
signals.append(("MAIN_ON", "PCM_CRUISE_2"))
signals.append(("SET_SPEED", "PCM_CRUISE_2"))
signals.append(("LOW_SPEED_LOCKOUT", "PCM_CRUISE_2"))
checks.append(("PCM_CRUISE_2", 33))
# add gas interceptor reading if we are using it
if CP.enableGasInterceptor:
signals.append(("INTERCEPTOR_GAS", "GAS_SENSOR"))
signals.append(("INTERCEPTOR_GAS2", "GAS_SENSOR"))
checks.append(("GAS_SENSOR", 50))
if CP.enableBsm:
signals += [
("L_ADJACENT", "BSM"),
("L_APPROACHING", "BSM"),
("R_ADJACENT", "BSM"),
("R_APPROACHING", "BSM"),
]
checks.append(("BSM", 1))
return CANParser(DBC[CP.carFingerprint]["pt"], signals, checks, 0)
@staticmethod
def get_cam_can_parser(CP):
signals = [
("FORCE", "PRE_COLLISION"),
("PRECOLLISION_ACTIVE", "PRE_COLLISION"),
]
# use steering message to check if panda is connected to frc
checks = [
("STEERING_LKA", 42),
("PRE_COLLISION", 0), # TODO: figure out why freq is inconsistent
]
if CP.carFingerprint in TSS2_CAR:
signals.append(("ACC_TYPE", "ACC_CONTROL"))
checks.append(("ACC_CONTROL", 33))
return CANParser(DBC[CP.carFingerprint]["pt"], signals, checks, 2)