Source code for selfdrive.car.hyundai.carcontroller

from cereal import car
from openpilot.common.conversions import Conversions as CV
from openpilot.common.numpy_fast import clip
from openpilot.common.realtime import DT_CTRL
from opendbc.can.packer import CANPacker
from openpilot.selfdrive.car import apply_driver_steer_torque_limits, common_fault_avoidance
from openpilot.selfdrive.car.hyundai import hyundaicanfd, hyundaican
from openpilot.selfdrive.car.hyundai.hyundaicanfd import CanBus
from openpilot.selfdrive.car.hyundai.values import HyundaiFlags, Buttons, CarControllerParams, CANFD_CAR, CAR
from openpilot.selfdrive.car.interfaces import CarControllerBase

VisualAlert = car.CarControl.HUDControl.VisualAlert
LongCtrlState = car.CarControl.Actuators.LongControlState

# EPS faults if you apply torque while the steering angle is above 90 degrees for more than 1 second
# All slightly below EPS thresholds to avoid fault
MAX_ANGLE = 85
MAX_ANGLE_FRAMES = 89
MAX_ANGLE_CONSECUTIVE_FRAMES = 2


[docs] def process_hud_alert(enabled, fingerprint, hud_control): sys_warning = (hud_control.visualAlert in (VisualAlert.steerRequired, VisualAlert.ldw)) # initialize to no line visible # TODO: this is not accurate for all cars sys_state = 1 if hud_control.leftLaneVisible and hud_control.rightLaneVisible or sys_warning: # HUD alert only display when LKAS status is active sys_state = 3 if enabled or sys_warning else 4 elif hud_control.leftLaneVisible: sys_state = 5 elif hud_control.rightLaneVisible: sys_state = 6 # initialize to no warnings left_lane_warning = 0 right_lane_warning = 0 if hud_control.leftLaneDepart: left_lane_warning = 1 if fingerprint in (CAR.GENESIS_G90, CAR.GENESIS_G80) else 2 if hud_control.rightLaneDepart: right_lane_warning = 1 if fingerprint in (CAR.GENESIS_G90, CAR.GENESIS_G80) else 2 return sys_warning, sys_state, left_lane_warning, right_lane_warning
[docs] class CarController(CarControllerBase): def __init__(self, dbc_name, CP, VM): self.CP = CP self.CAN = CanBus(CP) self.params = CarControllerParams(CP) self.packer = CANPacker(dbc_name) self.angle_limit_counter = 0 self.frame = 0 self.accel_last = 0 self.apply_steer_last = 0 self.car_fingerprint = CP.carFingerprint self.last_button_frame = 0
[docs] def update(self, CC, CS, now_nanos): actuators = CC.actuators hud_control = CC.hudControl # steering torque new_steer = int(round(actuators.steer * self.params.STEER_MAX)) apply_steer = apply_driver_steer_torque_limits(new_steer, self.apply_steer_last, CS.out.steeringTorque, self.params) # >90 degree steering fault prevention self.angle_limit_counter, apply_steer_req = common_fault_avoidance(abs(CS.out.steeringAngleDeg) >= MAX_ANGLE, CC.latActive, self.angle_limit_counter, MAX_ANGLE_FRAMES, MAX_ANGLE_CONSECUTIVE_FRAMES) if not CC.latActive: apply_steer = 0 # Hold torque with induced temporary fault when cutting the actuation bit torque_fault = CC.latActive and not apply_steer_req self.apply_steer_last = apply_steer # accel + longitudinal accel = clip(actuators.accel, CarControllerParams.ACCEL_MIN, CarControllerParams.ACCEL_MAX) stopping = actuators.longControlState == LongCtrlState.stopping set_speed_in_units = hud_control.setSpeed * (CV.MS_TO_KPH if CS.is_metric else CV.MS_TO_MPH) # HUD messages sys_warning, sys_state, left_lane_warning, right_lane_warning = process_hud_alert(CC.enabled, self.car_fingerprint, hud_control) can_sends = [] # *** common hyundai stuff *** # tester present - w/ no response (keeps relevant ECU disabled) if self.frame % 100 == 0 and not (self.CP.flags & HyundaiFlags.CANFD_CAMERA_SCC.value) and self.CP.openpilotLongitudinalControl: # for longitudinal control, either radar or ADAS driving ECU addr, bus = 0x7d0, 0 if self.CP.flags & HyundaiFlags.CANFD_HDA2.value: addr, bus = 0x730, self.CAN.ECAN can_sends.append([addr, 0, b"\x02\x3E\x80\x00\x00\x00\x00\x00", bus]) # for blinkers if self.CP.flags & HyundaiFlags.ENABLE_BLINKERS: can_sends.append([0x7b1, 0, b"\x02\x3E\x80\x00\x00\x00\x00\x00", self.CAN.ECAN]) # CAN-FD platforms if self.CP.carFingerprint in CANFD_CAR: hda2 = self.CP.flags & HyundaiFlags.CANFD_HDA2 hda2_long = hda2 and self.CP.openpilotLongitudinalControl # steering control can_sends.extend(hyundaicanfd.create_steering_messages(self.packer, self.CP, self.CAN, CC.enabled, apply_steer_req, apply_steer)) # prevent LFA from activating on HDA2 by sending "no lane lines detected" to ADAS ECU if self.frame % 5 == 0 and hda2: can_sends.append(hyundaicanfd.create_suppress_lfa(self.packer, self.CAN, CS.hda2_lfa_block_msg, self.CP.flags & HyundaiFlags.CANFD_HDA2_ALT_STEERING)) # LFA and HDA icons if self.frame % 5 == 0 and (not hda2 or hda2_long): can_sends.append(hyundaicanfd.create_lfahda_cluster(self.packer, self.CAN, CC.enabled)) # blinkers if hda2 and self.CP.flags & HyundaiFlags.ENABLE_BLINKERS: can_sends.extend(hyundaicanfd.create_spas_messages(self.packer, self.CAN, self.frame, CC.leftBlinker, CC.rightBlinker)) if self.CP.openpilotLongitudinalControl: if hda2: can_sends.extend(hyundaicanfd.create_adrv_messages(self.packer, self.CAN, self.frame)) if self.frame % 2 == 0: can_sends.append(hyundaicanfd.create_acc_control(self.packer, self.CAN, CC.enabled, self.accel_last, accel, stopping, CC.cruiseControl.override, set_speed_in_units, hud_control)) self.accel_last = accel else: # button presses can_sends.extend(self.create_button_messages(CC, CS, use_clu11=False)) else: can_sends.append(hyundaican.create_lkas11(self.packer, self.frame, self.CP, apply_steer, apply_steer_req, torque_fault, CS.lkas11, sys_warning, sys_state, CC.enabled, hud_control.leftLaneVisible, hud_control.rightLaneVisible, left_lane_warning, right_lane_warning)) if not self.CP.openpilotLongitudinalControl: can_sends.extend(self.create_button_messages(CC, CS, use_clu11=True)) if self.frame % 2 == 0 and self.CP.openpilotLongitudinalControl: # TODO: unclear if this is needed jerk = 3.0 if actuators.longControlState == LongCtrlState.pid else 1.0 use_fca = self.CP.flags & HyundaiFlags.USE_FCA.value can_sends.extend(hyundaican.create_acc_commands(self.packer, CC.enabled, accel, jerk, int(self.frame / 2), hud_control, set_speed_in_units, stopping, CC.cruiseControl.override, use_fca)) # 20 Hz LFA MFA message if self.frame % 5 == 0 and self.CP.flags & HyundaiFlags.SEND_LFA.value: can_sends.append(hyundaican.create_lfahda_mfc(self.packer, CC.enabled)) # 5 Hz ACC options if self.frame % 20 == 0 and self.CP.openpilotLongitudinalControl: can_sends.extend(hyundaican.create_acc_opt(self.packer)) # 2 Hz front radar options if self.frame % 50 == 0 and self.CP.openpilotLongitudinalControl: can_sends.append(hyundaican.create_frt_radar_opt(self.packer)) new_actuators = actuators.copy() new_actuators.steer = apply_steer / self.params.STEER_MAX new_actuators.steerOutputCan = apply_steer new_actuators.accel = accel self.frame += 1 return new_actuators, can_sends
[docs] def create_button_messages(self, CC: car.CarControl, CS: car.CarState, use_clu11: bool): can_sends = [] if use_clu11: if CC.cruiseControl.cancel: can_sends.append(hyundaican.create_clu11(self.packer, self.frame, CS.clu11, Buttons.CANCEL, self.CP)) elif CC.cruiseControl.resume: # send resume at a max freq of 10Hz if (self.frame - self.last_button_frame) * DT_CTRL > 0.1: # send 25 messages at a time to increases the likelihood of resume being accepted can_sends.extend([hyundaican.create_clu11(self.packer, self.frame, CS.clu11, Buttons.RES_ACCEL, self.CP)] * 25) if (self.frame - self.last_button_frame) * DT_CTRL >= 0.15: self.last_button_frame = self.frame else: if (self.frame - self.last_button_frame) * DT_CTRL > 0.25: # cruise cancel if CC.cruiseControl.cancel: if self.CP.flags & HyundaiFlags.CANFD_ALT_BUTTONS: can_sends.append(hyundaicanfd.create_acc_cancel(self.packer, self.CP, self.CAN, CS.cruise_info)) self.last_button_frame = self.frame else: for _ in range(20): can_sends.append(hyundaicanfd.create_buttons(self.packer, self.CP, self.CAN, CS.buttons_counter+1, Buttons.CANCEL)) self.last_button_frame = self.frame # cruise standstill resume elif CC.cruiseControl.resume: if self.CP.flags & HyundaiFlags.CANFD_ALT_BUTTONS: # TODO: resume for alt button cars pass else: for _ in range(20): can_sends.append(hyundaicanfd.create_buttons(self.packer, self.CP, self.CAN, CS.buttons_counter+1, Buttons.RES_ACCEL)) self.last_button_frame = self.frame return can_sends