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246 lines
9.0 KiB
246 lines
9.0 KiB
from dataclasses import dataclass, field
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from enum import Enum
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from cereal import car
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from openpilot.selfdrive.car import dbc_dict, PlatformConfig, DbcDict, Platforms, CarSpecs
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from openpilot.selfdrive.car.docs_definitions import CarFootnote, CarHarness, CarInfo, CarParts, Column
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from openpilot.selfdrive.car.fw_query_definitions import FwQueryConfig, Request, StdQueries
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Ecu = car.CarParams.Ecu
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class CarControllerParams:
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STEER_MAX = 300 # GM limit is 3Nm. Used by carcontroller to generate LKA output
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STEER_STEP = 3 # Active control frames per command (~33hz)
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INACTIVE_STEER_STEP = 10 # Inactive control frames per command (10hz)
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STEER_DELTA_UP = 10 # Delta rates require review due to observed EPS weakness
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STEER_DELTA_DOWN = 15
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STEER_DRIVER_ALLOWANCE = 65
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STEER_DRIVER_MULTIPLIER = 4
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STEER_DRIVER_FACTOR = 100
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NEAR_STOP_BRAKE_PHASE = 0.5 # m/s
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# Heartbeat for dash "Service Adaptive Cruise" and "Service Front Camera"
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ADAS_KEEPALIVE_STEP = 100
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CAMERA_KEEPALIVE_STEP = 100
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# Allow small margin below -3.5 m/s^2 from ISO 15622:2018 since we
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# perform the closed loop control, and might need some
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# to apply some more braking if we're on a downhill slope.
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# Our controller should still keep the 2 second average above
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# -3.5 m/s^2 as per planner limits
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ACCEL_MAX = 2. # m/s^2
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ACCEL_MIN = -4. # m/s^2
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def __init__(self, CP):
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# Gas/brake lookups
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self.ZERO_GAS = 2048 # Coasting
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self.MAX_BRAKE = 400 # ~ -4.0 m/s^2 with regen
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if CP.carFingerprint in CAMERA_ACC_CAR:
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self.MAX_GAS = 3400
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self.MAX_ACC_REGEN = 1514
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self.INACTIVE_REGEN = 1554
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# Camera ACC vehicles have no regen while enabled.
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# Camera transitions to MAX_ACC_REGEN from ZERO_GAS and uses friction brakes instantly
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max_regen_acceleration = 0.
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else:
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self.MAX_GAS = 3072 # Safety limit, not ACC max. Stock ACC >4096 from standstill.
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self.MAX_ACC_REGEN = 1404 # Max ACC regen is slightly less than max paddle regen
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self.INACTIVE_REGEN = 1404
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# ICE has much less engine braking force compared to regen in EVs,
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# lower threshold removes some braking deadzone
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max_regen_acceleration = -1. if CP.carFingerprint in EV_CAR else -0.1
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self.GAS_LOOKUP_BP = [max_regen_acceleration, 0., self.ACCEL_MAX]
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self.GAS_LOOKUP_V = [self.MAX_ACC_REGEN, self.ZERO_GAS, self.MAX_GAS]
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self.BRAKE_LOOKUP_BP = [self.ACCEL_MIN, max_regen_acceleration]
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self.BRAKE_LOOKUP_V = [self.MAX_BRAKE, 0.]
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class Footnote(Enum):
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OBD_II = CarFootnote(
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'Requires a <a href="https://github.com/commaai/openpilot/wiki/GM#hardware" target="_blank">community built ASCM harness</a>. ' +
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'<b><i>NOTE: disconnecting the ASCM disables Automatic Emergency Braking (AEB).</i></b>',
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Column.MODEL)
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@dataclass
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class GMCarInfo(CarInfo):
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package: str = "Adaptive Cruise Control (ACC)"
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def init_make(self, CP: car.CarParams):
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if CP.networkLocation == car.CarParams.NetworkLocation.fwdCamera:
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self.car_parts = CarParts.common([CarHarness.gm])
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else:
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self.car_parts = CarParts.common([CarHarness.obd_ii])
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self.footnotes.append(Footnote.OBD_II)
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@dataclass
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class GMPlatformConfig(PlatformConfig):
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dbc_dict: DbcDict = field(default_factory=lambda: dbc_dict('gm_global_a_powertrain_generated', 'gm_global_a_object', chassis_dbc='gm_global_a_chassis'))
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class CAR(Platforms):
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HOLDEN_ASTRA = GMPlatformConfig(
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"HOLDEN ASTRA RS-V BK 2017",
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GMCarInfo("Holden Astra 2017"),
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specs=CarSpecs(mass=1363, wheelbase=2.662, steerRatio=15.7, centerToFrontRatio=0.4),
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)
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VOLT = GMPlatformConfig(
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"CHEVROLET VOLT PREMIER 2017",
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GMCarInfo("Chevrolet Volt 2017-18", min_enable_speed=0, video_link="https://youtu.be/QeMCN_4TFfQ"),
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specs=CarSpecs(mass=1607, wheelbase=2.69, steerRatio=17.7, centerToFrontRatio=0.45),
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)
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CADILLAC_ATS = GMPlatformConfig(
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"CADILLAC ATS Premium Performance 2018",
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GMCarInfo("Cadillac ATS Premium Performance 2018"),
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specs=CarSpecs(mass=1601, wheelbase=2.78, steerRatio=15.3),
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)
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MALIBU = GMPlatformConfig(
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"CHEVROLET MALIBU PREMIER 2017",
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GMCarInfo("Chevrolet Malibu Premier 2017"),
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specs=CarSpecs(mass=1496, wheelbase=2.83, steerRatio=15.8, centerToFrontRatio=0.4),
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)
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ACADIA = GMPlatformConfig(
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"GMC ACADIA DENALI 2018",
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GMCarInfo("GMC Acadia 2018", video_link="https://www.youtube.com/watch?v=0ZN6DdsBUZo"),
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specs=CarSpecs(mass=1975, wheelbase=2.86, steerRatio=14.4, centerToFrontRatio=0.4),
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)
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BUICK_LACROSSE = GMPlatformConfig(
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"BUICK LACROSSE 2017",
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GMCarInfo("Buick LaCrosse 2017-19", "Driver Confidence Package 2"),
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specs=CarSpecs(mass=1712, wheelbase=2.91, steerRatio=15.8, centerToFrontRatio=0.4),
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)
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BUICK_REGAL = GMPlatformConfig(
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"BUICK REGAL ESSENCE 2018",
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GMCarInfo("Buick Regal Essence 2018"),
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specs=CarSpecs(mass=1714, wheelbase=2.83, steerRatio=14.4, centerToFrontRatio=0.4),
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)
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ESCALADE = GMPlatformConfig(
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"CADILLAC ESCALADE 2017",
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GMCarInfo("Cadillac Escalade 2017", "Driver Assist Package"),
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specs=CarSpecs(mass=2564, wheelbase=2.95, steerRatio=17.3),
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)
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ESCALADE_ESV = GMPlatformConfig(
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"CADILLAC ESCALADE ESV 2016",
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GMCarInfo("Cadillac Escalade ESV 2016", "Adaptive Cruise Control (ACC) & LKAS"),
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specs=CarSpecs(mass=2739, wheelbase=3.302, steerRatio=17.3),
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)
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ESCALADE_ESV_2019 = GMPlatformConfig(
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"CADILLAC ESCALADE ESV 2019",
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GMCarInfo("Cadillac Escalade ESV 2019", "Adaptive Cruise Control (ACC) & LKAS"),
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specs=ESCALADE_ESV.specs,
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)
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BOLT_EUV = GMPlatformConfig(
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"CHEVROLET BOLT EUV 2022",
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[
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GMCarInfo("Chevrolet Bolt EUV 2022-23", "Premier or Premier Redline Trim without Super Cruise Package", video_link="https://youtu.be/xvwzGMUA210"),
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GMCarInfo("Chevrolet Bolt EV 2022-23", "2LT Trim with Adaptive Cruise Control Package"),
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],
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specs=CarSpecs(mass=1669, wheelbase=2.63779, steerRatio=16.8, centerToFrontRatio=0.4),
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)
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SILVERADO = GMPlatformConfig(
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"CHEVROLET SILVERADO 1500 2020",
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[
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GMCarInfo("Chevrolet Silverado 1500 2020-21", "Safety Package II"),
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GMCarInfo("GMC Sierra 1500 2020-21", "Driver Alert Package II", video_link="https://youtu.be/5HbNoBLzRwE"),
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],
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specs=CarSpecs(mass=2450, wheelbase=3.75, steerRatio=16.3),
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)
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EQUINOX = GMPlatformConfig(
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"CHEVROLET EQUINOX 2019",
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GMCarInfo("Chevrolet Equinox 2019-22"),
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specs=CarSpecs(mass=1588, wheelbase=2.72, steerRatio=14.4, centerToFrontRatio=0.4),
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)
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TRAILBLAZER = GMPlatformConfig(
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"CHEVROLET TRAILBLAZER 2021",
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GMCarInfo("Chevrolet Trailblazer 2021-22"),
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specs=CarSpecs(mass=1345, wheelbase=2.64, steerRatio=16.8, centerToFrontRatio=0.4),
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)
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class CruiseButtons:
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INIT = 0
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UNPRESS = 1
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RES_ACCEL = 2
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DECEL_SET = 3
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MAIN = 5
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CANCEL = 6
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class AccState:
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OFF = 0
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ACTIVE = 1
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FAULTED = 3
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STANDSTILL = 4
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class CanBus:
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POWERTRAIN = 0
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OBSTACLE = 1
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CAMERA = 2
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CHASSIS = 2
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LOOPBACK = 128
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DROPPED = 192
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# In a Data Module, an identifier is a string used to recognize an object,
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# either by itself or together with the identifiers of parent objects.
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# Each returns a 4 byte hex representation of the decimal part number. `b"\x02\x8c\xf0'"` -> 42790951
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GM_BOOT_SOFTWARE_PART_NUMER_REQUEST = b'\x1a\xc0' # likely does not contain anything useful
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GM_SOFTWARE_MODULE_1_REQUEST = b'\x1a\xc1'
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GM_SOFTWARE_MODULE_2_REQUEST = b'\x1a\xc2'
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GM_SOFTWARE_MODULE_3_REQUEST = b'\x1a\xc3'
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# Part number of XML data file that is used to configure ECU
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GM_XML_DATA_FILE_PART_NUMBER = b'\x1a\x9c'
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GM_XML_CONFIG_COMPAT_ID = b'\x1a\x9b' # used to know if XML file is compatible with the ECU software/hardware
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# This DID is for identifying the part number that reflects the mix of hardware,
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# software, and calibrations in the ECU when it first arrives at the vehicle assembly plant.
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# If there's an Alpha Code, it's associated with this part number and stored in the DID $DB.
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GM_END_MODEL_PART_NUMBER_REQUEST = b'\x1a\xcb'
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GM_END_MODEL_PART_NUMBER_ALPHA_CODE_REQUEST = b'\x1a\xdb'
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GM_BASE_MODEL_PART_NUMBER_REQUEST = b'\x1a\xcc'
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GM_BASE_MODEL_PART_NUMBER_ALPHA_CODE_REQUEST = b'\x1a\xdc'
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GM_FW_RESPONSE = b'\x5a'
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GM_FW_REQUESTS = [
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GM_BOOT_SOFTWARE_PART_NUMER_REQUEST,
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GM_SOFTWARE_MODULE_1_REQUEST,
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GM_SOFTWARE_MODULE_2_REQUEST,
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GM_SOFTWARE_MODULE_3_REQUEST,
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GM_XML_DATA_FILE_PART_NUMBER,
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GM_XML_CONFIG_COMPAT_ID,
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GM_END_MODEL_PART_NUMBER_REQUEST,
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GM_END_MODEL_PART_NUMBER_ALPHA_CODE_REQUEST,
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GM_BASE_MODEL_PART_NUMBER_REQUEST,
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GM_BASE_MODEL_PART_NUMBER_ALPHA_CODE_REQUEST,
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]
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GM_RX_OFFSET = 0x400
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FW_QUERY_CONFIG = FwQueryConfig(
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requests=[request for req in GM_FW_REQUESTS for request in [
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Request(
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[StdQueries.SHORT_TESTER_PRESENT_REQUEST, req],
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[StdQueries.SHORT_TESTER_PRESENT_RESPONSE, GM_FW_RESPONSE + bytes([req[-1]])],
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rx_offset=GM_RX_OFFSET,
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bus=0,
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logging=True,
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),
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]],
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extra_ecus=[(Ecu.fwdCamera, 0x24b, None)],
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)
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EV_CAR = {CAR.VOLT, CAR.BOLT_EUV}
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# We're integrated at the camera with VOACC on these cars (instead of ASCM w/ OBD-II harness)
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CAMERA_ACC_CAR = {CAR.BOLT_EUV, CAR.SILVERADO, CAR.EQUINOX, CAR.TRAILBLAZER}
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STEER_THRESHOLD = 1.0
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CAR_INFO = CAR.create_carinfo_map()
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DBC = CAR.create_dbc_map()
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