#!/usr/bin/env python3 from cereal import car from panda import Panda from common.conversions import Conversions as CV from common.numpy_fast import interp from selfdrive.car.honda.values import CarControllerParams, CruiseButtons, HondaFlags, CAR, HONDA_BOSCH, HONDA_NIDEC_ALT_SCM_MESSAGES, HONDA_BOSCH_ALT_BRAKE_SIGNAL, HONDA_BOSCH_RADARLESS from selfdrive.car import STD_CARGO_KG, CivicParams, create_button_event, scale_rot_inertia, scale_tire_stiffness, gen_empty_fingerprint, get_safety_config from selfdrive.car.interfaces import CarInterfaceBase from selfdrive.car.disable_ecu import disable_ecu ButtonType = car.CarState.ButtonEvent.Type EventName = car.CarEvent.EventName TransmissionType = car.CarParams.TransmissionType BUTTONS_DICT = {CruiseButtons.RES_ACCEL: ButtonType.accelCruise, CruiseButtons.DECEL_SET: ButtonType.decelCruise, CruiseButtons.MAIN: ButtonType.altButton3, CruiseButtons.CANCEL: ButtonType.cancel} class CarInterface(CarInterfaceBase): @staticmethod def get_pid_accel_limits(CP, current_speed, cruise_speed): if CP.carFingerprint in HONDA_BOSCH: return CarControllerParams.BOSCH_ACCEL_MIN, CarControllerParams.BOSCH_ACCEL_MAX else: # NIDECs don't allow acceleration near cruise_speed, # so limit limits of pid to prevent windup ACCEL_MAX_VALS = [CarControllerParams.NIDEC_ACCEL_MAX, 0.2] ACCEL_MAX_BP = [cruise_speed - 2., cruise_speed - .2] return CarControllerParams.NIDEC_ACCEL_MIN, interp(current_speed, ACCEL_MAX_BP, ACCEL_MAX_VALS) @staticmethod def get_params(candidate, fingerprint=gen_empty_fingerprint(), car_fw=[], disable_radar=False): # pylint: disable=dangerous-default-value ret = CarInterfaceBase.get_std_params(candidate, fingerprint) ret.carName = "honda" if candidate in HONDA_BOSCH: ret.safetyConfigs = [get_safety_config(car.CarParams.SafetyModel.hondaBosch)] ret.radarOffCan = True if candidate not in HONDA_BOSCH_RADARLESS: # Disable the radar and let openpilot control longitudinal # WARNING: THIS DISABLES AEB! ret.openpilotLongitudinalControl = disable_radar ret.pcmCruise = not ret.openpilotLongitudinalControl else: ret.safetyConfigs = [get_safety_config(car.CarParams.SafetyModel.hondaNidec)] ret.enableGasInterceptor = 0x201 in fingerprint[0] ret.openpilotLongitudinalControl = True ret.pcmCruise = not ret.enableGasInterceptor if candidate == CAR.CRV_5G: ret.enableBsm = 0x12f8bfa7 in fingerprint[0] # Detect Bosch cars with new HUD msgs if any(0x33DA in f for f in fingerprint.values()): ret.flags |= HondaFlags.BOSCH_EXT_HUD.value # Accord 1.5T CVT has different gearbox message if candidate == CAR.ACCORD and 0x191 in fingerprint[1]: ret.transmissionType = TransmissionType.cvt # Certain Hondas have an extra steering sensor at the bottom of the steering rack, # which improves controls quality as it removes the steering column torsion from feedback. # Tire stiffness factor fictitiously lower if it includes the steering column torsion effect. # For modeling details, see p.198-200 in "The Science of Vehicle Dynamics (2014), M. Guiggiani" ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0], [0]] ret.lateralTuning.pid.kiBP, ret.lateralTuning.pid.kpBP = [[0.], [0.]] ret.lateralTuning.pid.kf = 0.00006 # conservative feed-forward if candidate in HONDA_BOSCH: ret.longitudinalTuning.kpV = [0.25] ret.longitudinalTuning.kiV = [0.05] ret.longitudinalActuatorDelayUpperBound = 0.5 # s else: # default longitudinal tuning for all hondas ret.longitudinalTuning.kpBP = [0., 5., 35.] ret.longitudinalTuning.kpV = [1.2, 0.8, 0.5] ret.longitudinalTuning.kiBP = [0., 35.] ret.longitudinalTuning.kiV = [0.18, 0.12] eps_modified = False for fw in car_fw: if fw.ecu == "eps" and b"," in fw.fwVersion: eps_modified = True if candidate == CAR.CIVIC: ret.mass = CivicParams.MASS ret.wheelbase = CivicParams.WHEELBASE ret.centerToFront = CivicParams.CENTER_TO_FRONT ret.steerRatio = 15.38 # 10.93 is end-to-end spec if eps_modified: # stock request input values: 0x0000, 0x00DE, 0x014D, 0x01EF, 0x0290, 0x0377, 0x0454, 0x0610, 0x06EE # stock request output values: 0x0000, 0x0917, 0x0DC5, 0x1017, 0x119F, 0x140B, 0x1680, 0x1680, 0x1680 # modified request output values: 0x0000, 0x0917, 0x0DC5, 0x1017, 0x119F, 0x140B, 0x1680, 0x2880, 0x3180 # stock filter output values: 0x009F, 0x0108, 0x0108, 0x0108, 0x0108, 0x0108, 0x0108, 0x0108, 0x0108 # modified filter output values: 0x009F, 0x0108, 0x0108, 0x0108, 0x0108, 0x0108, 0x0108, 0x0400, 0x0480 # note: max request allowed is 4096, but request is capped at 3840 in firmware, so modifications result in 2x max ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 2560, 8000], [0, 2560, 3840]] ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.3], [0.1]] else: ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 2560], [0, 2560]] ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[1.1], [0.33]] tire_stiffness_factor = 1. elif candidate in (CAR.CIVIC_BOSCH, CAR.CIVIC_BOSCH_DIESEL, CAR.CIVIC_2022): ret.mass = CivicParams.MASS ret.wheelbase = CivicParams.WHEELBASE ret.centerToFront = CivicParams.CENTER_TO_FRONT ret.steerRatio = 15.38 # 10.93 is end-to-end spec ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 4096], [0, 4096]] # TODO: determine if there is a dead zone at the top end tire_stiffness_factor = 1. ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.8], [0.24]] elif candidate in (CAR.ACCORD, CAR.ACCORDH): ret.mass = 3279. * CV.LB_TO_KG + STD_CARGO_KG ret.wheelbase = 2.83 ret.centerToFront = ret.wheelbase * 0.39 ret.steerRatio = 16.33 # 11.82 is spec end-to-end ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 4096], [0, 4096]] # TODO: determine if there is a dead zone at the top end tire_stiffness_factor = 0.8467 if eps_modified: ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.3], [0.09]] else: ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.6], [0.18]] elif candidate == CAR.ACURA_ILX: ret.mass = 3095. * CV.LB_TO_KG + STD_CARGO_KG ret.wheelbase = 2.67 ret.centerToFront = ret.wheelbase * 0.37 ret.steerRatio = 18.61 # 15.3 is spec end-to-end ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 3840], [0, 3840]] # TODO: determine if there is a dead zone at the top end tire_stiffness_factor = 0.72 ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.8], [0.24]] elif candidate in (CAR.CRV, CAR.CRV_EU): ret.mass = 3572. * CV.LB_TO_KG + STD_CARGO_KG ret.wheelbase = 2.62 ret.centerToFront = ret.wheelbase * 0.41 ret.steerRatio = 16.89 # as spec ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 1000], [0, 1000]] # TODO: determine if there is a dead zone at the top end tire_stiffness_factor = 0.444 ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.8], [0.24]] ret.wheelSpeedFactor = 1.025 elif candidate == CAR.CRV_5G: ret.mass = 3410. * CV.LB_TO_KG + STD_CARGO_KG ret.wheelbase = 2.66 ret.centerToFront = ret.wheelbase * 0.41 ret.steerRatio = 16.0 # 12.3 is spec end-to-end if eps_modified: # stock request input values: 0x0000, 0x00DB, 0x01BB, 0x0296, 0x0377, 0x0454, 0x0532, 0x0610, 0x067F # stock request output values: 0x0000, 0x0500, 0x0A15, 0x0E6D, 0x1100, 0x1200, 0x129A, 0x134D, 0x1400 # modified request output values: 0x0000, 0x0500, 0x0A15, 0x0E6D, 0x1100, 0x1200, 0x1ACD, 0x239A, 0x2800 ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 2560, 10000], [0, 2560, 3840]] ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.21], [0.07]] else: ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 3840], [0, 3840]] ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.64], [0.192]] tire_stiffness_factor = 0.677 ret.wheelSpeedFactor = 1.025 elif candidate == CAR.CRV_HYBRID: ret.mass = 1667. + STD_CARGO_KG # mean of 4 models in kg ret.wheelbase = 2.66 ret.centerToFront = ret.wheelbase * 0.41 ret.steerRatio = 16.0 # 12.3 is spec end-to-end ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 4096], [0, 4096]] # TODO: determine if there is a dead zone at the top end tire_stiffness_factor = 0.677 ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.6], [0.18]] ret.wheelSpeedFactor = 1.025 elif candidate == CAR.FIT: ret.mass = 2644. * CV.LB_TO_KG + STD_CARGO_KG ret.wheelbase = 2.53 ret.centerToFront = ret.wheelbase * 0.39 ret.steerRatio = 13.06 ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 4096], [0, 4096]] # TODO: determine if there is a dead zone at the top end tire_stiffness_factor = 0.75 ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.2], [0.05]] elif candidate == CAR.FREED: ret.mass = 3086. * CV.LB_TO_KG + STD_CARGO_KG ret.wheelbase = 2.74 # the remaining parameters were copied from FIT ret.centerToFront = ret.wheelbase * 0.39 ret.steerRatio = 13.06 ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 4096], [0, 4096]] tire_stiffness_factor = 0.75 ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.2], [0.05]] elif candidate == CAR.HRV: ret.mass = 3125 * CV.LB_TO_KG + STD_CARGO_KG ret.wheelbase = 2.61 ret.centerToFront = ret.wheelbase * 0.41 ret.steerRatio = 15.2 ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 4096], [0, 4096]] tire_stiffness_factor = 0.5 ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.16], [0.025]] ret.wheelSpeedFactor = 1.025 elif candidate == CAR.ACURA_RDX: ret.mass = 3935. * CV.LB_TO_KG + STD_CARGO_KG ret.wheelbase = 2.68 ret.centerToFront = ret.wheelbase * 0.38 ret.steerRatio = 15.0 # as spec tire_stiffness_factor = 0.444 ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 1000], [0, 1000]] # TODO: determine if there is a dead zone at the top end ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.8], [0.24]] elif candidate == CAR.ACURA_RDX_3G: ret.mass = 4068. * CV.LB_TO_KG + STD_CARGO_KG ret.wheelbase = 2.75 ret.centerToFront = ret.wheelbase * 0.41 ret.steerRatio = 11.95 # as spec ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 3840], [0, 3840]] ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.2], [0.06]] tire_stiffness_factor = 0.677 elif candidate == CAR.ODYSSEY: ret.mass = 4471. * CV.LB_TO_KG + STD_CARGO_KG ret.wheelbase = 3.00 ret.centerToFront = ret.wheelbase * 0.41 ret.steerRatio = 14.35 # as spec ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 4096], [0, 4096]] # TODO: determine if there is a dead zone at the top end tire_stiffness_factor = 0.82 ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.28], [0.08]] elif candidate == CAR.ODYSSEY_CHN: ret.mass = 1849.2 + STD_CARGO_KG # mean of 4 models in kg ret.wheelbase = 2.90 ret.centerToFront = ret.wheelbase * 0.41 # from CAR.ODYSSEY ret.steerRatio = 14.35 ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 32767], [0, 32767]] # TODO: determine if there is a dead zone at the top end tire_stiffness_factor = 0.82 ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.28], [0.08]] elif candidate in (CAR.PILOT, CAR.PASSPORT): ret.mass = 4204. * CV.LB_TO_KG + STD_CARGO_KG # average weight ret.wheelbase = 2.82 ret.centerToFront = ret.wheelbase * 0.428 ret.steerRatio = 17.25 # as spec ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 4096], [0, 4096]] # TODO: determine if there is a dead zone at the top end tire_stiffness_factor = 0.444 ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.38], [0.11]] elif candidate == CAR.RIDGELINE: ret.mass = 4515. * CV.LB_TO_KG + STD_CARGO_KG ret.wheelbase = 3.18 ret.centerToFront = ret.wheelbase * 0.41 ret.steerRatio = 15.59 # as spec ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 4096], [0, 4096]] # TODO: determine if there is a dead zone at the top end tire_stiffness_factor = 0.444 ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.38], [0.11]] elif candidate == CAR.INSIGHT: ret.mass = 2987. * CV.LB_TO_KG + STD_CARGO_KG ret.wheelbase = 2.7 ret.centerToFront = ret.wheelbase * 0.39 ret.steerRatio = 15.0 # 12.58 is spec end-to-end ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 4096], [0, 4096]] # TODO: determine if there is a dead zone at the top end tire_stiffness_factor = 0.82 ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.6], [0.18]] elif candidate == CAR.HONDA_E: ret.mass = 3338.8 * CV.LB_TO_KG + STD_CARGO_KG ret.wheelbase = 2.5 ret.centerToFront = ret.wheelbase * 0.5 ret.steerRatio = 16.71 ret.lateralParams.torqueBP, ret.lateralParams.torqueV = [[0, 4096], [0, 4096]] # TODO: determine if there is a dead zone at the top end tire_stiffness_factor = 0.82 ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.6], [0.18]] # TODO: can probably use some tuning else: raise ValueError(f"unsupported car {candidate}") # These cars use alternate user brake msg (0x1BE) if candidate in HONDA_BOSCH_ALT_BRAKE_SIGNAL: ret.safetyConfigs[0].safetyParam |= Panda.FLAG_HONDA_ALT_BRAKE # These cars use alternate SCM messages (SCM_FEEDBACK AND SCM_BUTTON) if candidate in HONDA_NIDEC_ALT_SCM_MESSAGES: ret.safetyConfigs[0].safetyParam |= Panda.FLAG_HONDA_NIDEC_ALT if ret.openpilotLongitudinalControl and candidate in HONDA_BOSCH: ret.safetyConfigs[0].safetyParam |= Panda.FLAG_HONDA_BOSCH_LONG if candidate in HONDA_BOSCH_RADARLESS: ret.safetyConfigs[0].safetyParam |= Panda.FLAG_HONDA_RADARLESS # 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. Otherwise, add 0.5 mph margin to not # conflict with PCM acc stop_and_go = candidate in (HONDA_BOSCH | {CAR.CIVIC}) or ret.enableGasInterceptor ret.minEnableSpeed = -1. if stop_and_go else 25.5 * CV.MPH_TO_MS # TODO: get actual value, for now starting with reasonable value for # civic and scaling by mass and wheelbase ret.rotationalInertia = scale_rot_inertia(ret.mass, ret.wheelbase) # 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, ret.tireStiffnessRear = scale_tire_stiffness(ret.mass, ret.wheelbase, ret.centerToFront, tire_stiffness_factor=tire_stiffness_factor) ret.steerActuatorDelay = 0.1 ret.steerLimitTimer = 0.8 return ret @staticmethod def init(CP, logcan, sendcan): if CP.carFingerprint in (HONDA_BOSCH - HONDA_BOSCH_RADARLESS) and CP.openpilotLongitudinalControl: disable_ecu(logcan, sendcan, bus=1, addr=0x18DAB0F1, com_cont_req=b'\x28\x83\x03') # returns a car.CarState def _update(self, c): ret = self.CS.update(self.cp, self.cp_cam, self.cp_body) buttonEvents = [] if self.CS.cruise_buttons != self.CS.prev_cruise_buttons: buttonEvents.append(create_button_event(self.CS.cruise_buttons, self.CS.prev_cruise_buttons, BUTTONS_DICT)) if self.CS.cruise_setting != self.CS.prev_cruise_setting: buttonEvents.append(create_button_event(self.CS.cruise_setting, self.CS.prev_cruise_setting, {1: ButtonType.altButton1})) ret.buttonEvents = buttonEvents # events events = self.create_common_events(ret, pcm_enable=False) if self.CS.brake_error: events.add(EventName.brakeUnavailable) if self.CP.pcmCruise and ret.vEgo < self.CP.minEnableSpeed: events.add(EventName.belowEngageSpeed) if self.CP.pcmCruise: # we engage when pcm is active (rising edge) if ret.cruiseState.enabled and not self.CS.out.cruiseState.enabled: events.add(EventName.pcmEnable) elif not ret.cruiseState.enabled and (c.actuators.accel >= 0. or not self.CP.openpilotLongitudinalControl): # it can happen that car cruise disables while comma system is enabled: need to # keep braking if needed or if the speed is very low if ret.vEgo < self.CP.minEnableSpeed + 2.: # non loud alert if cruise disables below 25mph as expected (+ a little margin) events.add(EventName.speedTooLow) else: events.add(EventName.cruiseDisabled) if self.CS.CP.minEnableSpeed > 0 and ret.vEgo < 0.001: events.add(EventName.manualRestart) ret.events = events.to_msg() return ret # pass in a car.CarControl # to be called @ 100hz def apply(self, c): return self.CC.update(c, self.CS)