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 collections import defaultdict
from dataclasses import dataclass, field
from enum import Enum
from typing import Dict, List, Union
from cereal import car
from selfdrive.car import dbc_dict
from selfdrive.car.docs_definitions import CarFootnote, CarInfo, Column, Harness
Ecu = car.CarParams.Ecu
class CarControllerParams:
STEER_MAX = 300 # GM limit is 3Nm. Used by carcontroller to generate LKA output
STEER_STEP = 2 # Control frames per command (50hz)
STEER_DELTA_UP = 7 # Delta rates require review due to observed EPS weakness
STEER_DELTA_DOWN = 17
MIN_STEER_SPEED = 3. # m/s
STEER_DRIVER_ALLOWANCE = 50
STEER_DRIVER_MULTIPLIER = 4
STEER_DRIVER_FACTOR = 100
NEAR_STOP_BRAKE_PHASE = 0.5 # m/s
# Heartbeat for dash "Service Adaptive Cruise" and "Service Front Camera"
ADAS_KEEPALIVE_STEP = 100
CAMERA_KEEPALIVE_STEP = 100
# Volt gasbrake lookups
# TODO: These values should be confirmed on non-Volt vehicles
MAX_GAS = 3072 # Safety limit, not ACC max. Stock ACC >4096 from standstill.
ZERO_GAS = 2048 # Coasting
MAX_BRAKE = 350 # ~ -3.5 m/s^2 with regen
MAX_ACC_REGEN = 1404 # Max ACC regen is slightly less than max paddle regen
# Allow small margin below -3.5 m/s^2 from ISO 15622:2018 since we
# perform the closed loop control, and might need some
# to apply some more braking if we're on a downhill slope.
# Our controller should still keep the 2 second average above
# -3.5 m/s^2 as per planner limits
ACCEL_MAX = 2. # m/s^2
ACCEL_MIN = -4. # m/s^2
GAS_LOOKUP_BP = [-1., 0., ACCEL_MAX]
GAS_LOOKUP_V = [MAX_ACC_REGEN, ZERO_GAS, MAX_GAS]
BRAKE_LOOKUP_BP = [ACCEL_MIN, -1.]
BRAKE_LOOKUP_V = [MAX_BRAKE, 0.]
STEER_THRESHOLD = 1.0
class CAR:
HOLDEN_ASTRA = "HOLDEN ASTRA RS-V BK 2017"
VOLT = "CHEVROLET VOLT PREMIER 2017"
CADILLAC_ATS = "CADILLAC ATS Premium Performance 2018"
MALIBU = "CHEVROLET MALIBU PREMIER 2017"
ACADIA = "GMC ACADIA DENALI 2018"
BUICK_REGAL = "BUICK REGAL ESSENCE 2018"
ESCALADE_ESV = "CADILLAC ESCALADE ESV 2016"
class Footnote(Enum):
OBD_II = CarFootnote(
'Requires a <a href="https://github.com/commaai/openpilot/wiki/GM#hardware">community built ASCM harness</a>. ' +
'<b><i>NOTE: disconnecting the ASCM disables Automatic Emergency Braking (AEB).</i></b>',
Column.MODEL)
@dataclass
class GMCarInfo(CarInfo):
package: str = "Adaptive Cruise Control"
harness: Enum = Harness.obd_ii
footnotes: List[Enum] = field(default_factory=lambda: [Footnote.OBD_II])
CAR_INFO: Dict[str, Union[GMCarInfo, List[GMCarInfo]]] = {
CAR.HOLDEN_ASTRA: GMCarInfo("Holden Astra 2017"),
CAR.VOLT: GMCarInfo("Chevrolet Volt 2017-18", min_enable_speed=0),
CAR.CADILLAC_ATS: GMCarInfo("Cadillac ATS Premium Performance 2018"),
CAR.MALIBU: GMCarInfo("Chevrolet Malibu Premier 2017"),
CAR.ACADIA: GMCarInfo("GMC Acadia 2018", video_link="https://www.youtube.com/watch?v=0ZN6DdsBUZo"),
CAR.BUICK_REGAL: GMCarInfo("Buick Regal Essence 2018"),
CAR.ESCALADE_ESV: GMCarInfo("Cadillac Escalade ESV 2016", "Adaptive Cruise Control (ACC) & LKAS"),
}
class CruiseButtons:
INIT = 0
UNPRESS = 1
RES_ACCEL = 2
DECEL_SET = 3
MAIN = 5
CANCEL = 6
class AccState:
OFF = 0
ACTIVE = 1
FAULTED = 3
STANDSTILL = 4
class CanBus:
POWERTRAIN = 0
OBSTACLE = 1
CHASSIS = 2
SW_GMLAN = 3
LOOPBACK = 128
DROPPED = 192
FINGERPRINTS = {
CAR.HOLDEN_ASTRA: [
# Astra BK MY17, ASCM unplugged
{
190: 8, 193: 8, 197: 8, 199: 4, 201: 8, 209: 7, 211: 8, 241: 6, 249: 8, 288: 5, 298: 8, 304: 1, 309: 8, 311: 8, 313: 8, 320: 3, 328: 1, 352: 5, 381: 6, 384: 4, 386: 8, 388: 8, 393: 8, 398: 8, 401: 8, 413: 8, 417: 8, 419: 8, 422: 1, 426: 7, 431: 8, 442: 8, 451: 8, 452: 8, 453: 8, 455: 7, 456: 8, 458: 5, 479: 8, 481: 7, 485: 8, 489: 8, 497: 8, 499: 3, 500: 8, 501: 8, 508: 8, 528: 5, 532: 6, 554: 3, 560: 8, 562: 8, 563: 5, 564: 5, 565: 5, 567: 5, 647: 5, 707: 8, 715: 8, 723: 8, 753: 5, 761: 7, 806: 1, 810: 8, 840: 5, 842: 5, 844: 8, 866: 4, 961: 8, 969: 8, 977: 8, 979: 8, 985: 5, 1001: 8, 1009: 8, 1011: 6, 1017: 8, 1019: 3, 1020: 8, 1105: 6, 1217: 8, 1221: 5, 1225: 8, 1233: 8, 1249: 8, 1257: 6, 1259: 8, 1261: 7, 1263: 4, 1265: 8, 1267: 8, 1280: 4, 1300: 8, 1328: 4, 1417: 8, 1906: 7, 1907: 7, 1908: 7, 1912: 7, 1919: 7,
}],
CAR.VOLT: [
# Volt Premier w/ ACC 2017
{
170: 8, 171: 8, 189: 7, 190: 6, 193: 8, 197: 8, 199: 4, 201: 8, 209: 7, 211: 2, 241: 6, 288: 5, 289: 8, 298: 8, 304: 1, 308: 4, 309: 8, 311: 8, 313: 8, 320: 3, 328: 1, 352: 5, 381: 6, 384: 4, 386: 8, 388: 8, 389: 2, 390: 7, 417: 7, 419: 1, 426: 7, 451: 8, 452: 8, 453: 6, 454: 8, 456: 8, 479: 3, 481: 7, 485: 8, 489: 8, 493: 8, 495: 4, 497: 8, 499: 3, 500: 6, 501: 8, 508: 8, 528: 4, 532: 6, 546: 7, 550: 8, 554: 3, 558: 8, 560: 8, 562: 8, 563: 5, 564: 5, 565: 5, 566: 5, 567: 3, 568: 1, 573: 1, 577: 8, 647: 3, 707: 8, 711: 6, 715: 8, 761: 7, 810: 8, 840: 5, 842: 5, 844: 8, 866: 4, 961: 8, 969: 8, 977: 8, 979: 7, 988: 6, 989: 8, 995: 7, 1001: 8, 1005: 6, 1009: 8, 1017: 8, 1019: 2, 1020: 8, 1105: 6, 1187: 4, 1217: 8, 1221: 5, 1223: 3, 1225: 7, 1227: 4, 1233: 8, 1249: 8, 1257: 6, 1265: 8, 1267: 1, 1273: 3, 1275: 3, 1280: 4, 1300: 8, 1322: 6, 1323: 4, 1328: 4, 1417: 8, 1601: 8, 1905: 7, 1906: 7, 1907: 7, 1910: 7, 1912: 7, 1922: 7, 1927: 7, 1928: 7, 2016: 8, 2020: 8, 2024: 8, 2028: 8
},
# Volt Premier w/ ACC 2018
{
170: 8, 171: 8, 189: 7, 190: 6, 193: 8, 197: 8, 199: 4, 201: 8, 209: 7, 211: 2, 241: 6, 288: 5, 298: 8, 304: 1, 308: 4, 309: 8, 311: 8, 313: 8, 320: 3, 328: 1, 352: 5, 381: 6, 384: 4, 386: 8, 388: 8, 389: 2, 390: 7, 417: 7, 419: 1, 426: 7, 451: 8, 452: 8, 453: 6, 454: 8, 456: 8, 479: 3, 481: 7, 485: 8, 489: 8, 493: 8, 495: 4, 497: 8, 499: 3, 500: 6, 501: 8, 508: 8, 528: 4, 532: 6, 546: 7, 550: 8, 554: 3, 558: 8, 560: 8, 562: 8, 563: 5, 564: 5, 565: 5, 566: 5, 567: 3, 568: 1, 573: 1, 577: 8, 578: 8, 608: 8, 609: 6, 610: 6, 611: 6, 612: 8, 613: 8, 647: 3, 707: 8, 711: 6, 715: 8, 717: 5, 761: 7, 810: 8, 840: 5, 842: 5, 844: 8, 866: 4, 869: 4, 880: 6, 961: 8, 967: 4, 969: 8, 977: 8, 979: 7, 988: 6, 989: 8, 995: 7, 1001: 8, 1005: 6, 1009: 8, 1017: 8, 1019: 2, 1020: 8, 1033: 7, 1034: 7, 1105: 6, 1187: 4, 1217: 8, 1221: 5, 1223: 3, 1225: 7, 1227: 4, 1233: 8, 1249: 8, 1257: 6, 1265: 8, 1267: 1, 1273: 3, 1275: 3, 1280: 4, 1296: 4, 1300: 8, 1322: 6, 1323: 4, 1328: 4, 1417: 8, 1516: 8, 1601: 8, 1618: 8, 1905: 7, 1906: 7, 1907: 7, 1910: 7, 1912: 7, 1922: 7, 1927: 7, 1930: 7, 2016: 8, 2018: 8, 2020: 8, 2024: 8, 2028: 8
}],
CAR.BUICK_REGAL : [
# Regal TourX Essence w/ ACC 2018
{
190: 8, 193: 8, 197: 8, 199: 4, 201: 8, 209: 7, 211: 8, 241: 6, 249: 8, 288: 5, 298: 8, 304: 1, 309: 8, 311: 8, 313: 8, 320: 3, 322: 7, 328: 1, 352: 5, 381: 6, 384: 4, 386: 8, 388: 8, 393: 7, 398: 8, 407: 7, 413: 8, 417: 8, 419: 8, 422: 4, 426: 8, 431: 8, 442: 8, 451: 8, 452: 8, 453: 8, 455: 7, 456: 8, 463: 3, 479: 8, 481: 7, 485: 8, 487: 8, 489: 8, 495: 8, 497: 8, 499: 3, 500: 8, 501: 8, 508: 8, 528: 5, 532: 6, 554: 3, 560: 8, 562: 8, 563: 5, 564: 5, 565: 5, 567: 5, 569: 3, 573: 1, 577: 8, 578: 8, 579: 8, 587: 8, 608: 8, 609: 6, 610: 6, 611: 6, 612: 8, 613: 8, 647: 3, 707: 8, 715: 8, 717: 5, 753: 5, 761: 7, 810: 8, 840: 5, 842: 5, 844: 8, 866: 4, 869: 4, 880: 6, 882: 8, 884: 8, 890: 1, 892: 2, 893: 2, 894: 1, 961: 8, 967: 8, 969: 8, 977: 8, 979: 8, 985: 8, 1001: 8, 1005: 6, 1009: 8, 1011: 8, 1013: 3, 1017: 8, 1020: 8, 1024: 8, 1025: 8, 1026: 8, 1027: 8, 1028: 8, 1029: 8, 1030: 8, 1031: 8, 1032: 2, 1033: 7, 1034: 7, 1105: 6, 1217: 8, 1221: 5, 1223: 8, 1225: 7, 1233: 8, 1249: 8, 1257: 6, 1259: 8, 1261: 8, 1263: 8, 1265: 8, 1267: 8, 1271: 8, 1280: 4, 1296: 4, 1300: 8, 1322: 6, 1328: 4, 1417: 8, 1601: 8, 1602: 8, 1603: 7, 1611: 8, 1618: 8, 1906: 8, 1907: 7, 1912: 7, 1914: 7, 1916: 7, 1919: 7, 1930: 7, 2016: 8, 2018: 8, 2019: 8, 2024: 8, 2026: 8
}],
CAR.CADILLAC_ATS: [
# Cadillac ATS Coupe Premium Performance 3.6L RWD w/ ACC 2018
{
190: 6, 193: 8, 197: 8, 199: 4, 201: 8, 209: 7, 211: 2, 241: 6, 249: 8, 288: 5, 298: 8, 304: 1, 309: 8, 311: 8, 313: 8, 320: 3, 322: 7, 328: 1, 352: 5, 368: 3, 381: 6, 384: 4, 386: 8, 388: 8, 393: 7, 398: 8, 401: 8, 407: 7, 413: 8, 417: 7, 419: 1, 422: 4, 426: 7, 431: 8, 442: 8, 451: 8, 452: 8, 453: 6, 455: 7, 456: 8, 462: 4, 479: 3, 481: 7, 485: 8, 487: 8, 489: 8, 491: 2, 493: 8, 497: 8, 499: 3, 500: 6, 501: 8, 508: 8, 510: 8, 528: 5, 532: 6, 534: 2, 554: 3, 560: 8, 562: 8, 563: 5, 564: 5, 565: 5, 567: 5, 573: 1, 577: 8, 608: 8, 609: 6, 610: 6, 611: 6, 612: 8, 613: 8, 647: 6, 707: 8, 715: 8, 717: 5, 719: 5, 723: 2, 753: 5, 761: 7, 801: 8, 804: 3, 810: 8, 840: 5, 842: 5, 844: 8, 866: 4, 869: 4, 880: 6, 882: 8, 890: 1, 892: 2, 893: 2, 894: 1, 961: 8, 967: 4, 969: 8, 977: 8, 979: 8, 985: 5, 1001: 8, 1005: 6, 1009: 8, 1011: 6, 1013: 3, 1017: 8, 1019: 2, 1020: 8, 1033: 7, 1034: 7, 1105: 6, 1217: 8, 1221: 5, 1223: 3, 1225: 7, 1233: 8, 1241: 3, 1249: 8, 1257: 6, 1259: 8, 1261: 7, 1263: 4, 1265: 8, 1267: 1, 1271: 8, 1280: 4, 1296: 4, 1300: 8, 1322: 6, 1323: 4, 1328: 4, 1417: 8, 1601: 8, 1904: 7, 1906: 7, 1907: 7, 1912: 7, 1916: 7, 1917: 7, 1918: 7, 1919: 7, 1920: 7, 1930: 7, 2016: 8, 2024: 8
}],
CAR.MALIBU: [
# Malibu Premier w/ ACC 2017
{
190: 6, 193: 8, 197: 8, 199: 4, 201: 8, 209: 7, 211: 2, 241: 6, 249: 8, 288: 5, 298: 8, 304: 1, 309: 8, 311: 8, 313: 8, 320: 3, 328: 1, 352: 5, 381: 6, 384: 4, 386: 8, 388: 8, 393: 7, 398: 8, 407: 7, 413: 8, 417: 7, 419: 1, 422: 4, 426: 7, 431: 8, 442: 8, 451: 8, 452: 8, 453: 6, 455: 7, 456: 8, 479: 3, 481: 7, 485: 8, 487: 8, 489: 8, 495: 4, 497: 8, 499: 3, 500: 6, 501: 8, 508: 8, 510: 8, 528: 5, 532: 6, 554: 3, 560: 8, 562: 8, 563: 5, 564: 5, 565: 5, 567: 5, 573: 1, 577: 8, 608: 8, 609: 6, 610: 6, 611: 6, 612: 8, 613: 8, 647: 6, 707: 8, 715: 8, 717: 5, 753: 5, 761: 7, 810: 8, 840: 5, 842: 5, 844: 8, 866: 4, 869: 4, 880: 6, 961: 8, 969: 8, 977: 8, 979: 8, 985: 5, 1001: 8, 1005: 6, 1009: 8, 1013: 3, 1017: 8, 1019: 2, 1020: 8, 1033: 7, 1034: 7, 1105: 6, 1217: 8, 1221: 5, 1223: 2, 1225: 7, 1233: 8, 1249: 8, 1257: 6, 1265: 8, 1267: 1, 1280: 4, 1296: 4, 1300: 8, 1322: 6, 1323: 4, 1328: 4, 1417: 8, 1601: 8, 1906: 7, 1907: 7, 1912: 7, 1919: 7, 1930: 7, 2016: 8, 2024: 8,
}],
CAR.ACADIA: [
# Acadia Denali w/ACC 2018
{
190: 6, 192: 5, 193: 8, 197: 8, 199: 4, 201: 6, 208: 8, 209: 7, 211: 2, 241: 6, 249: 8, 288: 5, 289: 1, 290: 1, 298: 8, 304: 8, 309: 8, 313: 8, 320: 8, 322: 7, 328: 1, 352: 7, 368: 8, 381: 8, 384: 8, 386: 8, 388: 8, 393: 8, 398: 8, 413: 8, 417: 7, 419: 1, 422: 4, 426: 7, 431: 8, 442: 8, 451: 8, 452: 8, 453: 6, 454: 8, 455: 7, 458: 8, 460: 4, 462: 4, 463: 3, 479: 3, 481: 7, 485: 8, 489: 5, 497: 8, 499: 3, 500: 6, 501: 8, 508: 8, 510: 8, 512: 3, 530: 8, 532: 6, 534: 2, 554: 3, 560: 8, 562: 8, 563: 5, 564: 5, 567: 5, 568: 2, 573: 1, 608: 8, 609: 6, 610: 6, 611: 6, 612: 8, 613: 8, 647: 6, 707: 8, 715: 8, 717: 5, 753: 5, 761: 7, 789: 5, 800: 6, 801: 8, 803: 8, 804: 3, 805: 8, 832: 8, 840: 5, 842: 5, 844: 8, 866: 4, 869: 4, 880: 6, 961: 8, 969: 8, 977: 8, 979: 8, 985: 5, 1001: 8, 1003: 5, 1005: 6, 1009: 8, 1017: 8, 1020: 8, 1033: 7, 1034: 7, 1105: 6, 1217: 8, 1221: 5, 1225: 8, 1233: 8, 1249: 8, 1257: 6, 1265: 8, 1267: 1, 1280: 4, 1296: 4, 1300: 8, 1322: 6, 1328: 4, 1417: 8, 1906: 7, 1907: 7, 1912: 7, 1914: 7, 1918: 7, 1919: 7, 1920: 7, 1930: 7
},
# Acadia Denali w/ /ACC 2018
{
190: 6, 193: 8, 197: 8, 199: 4, 201: 8, 208: 8, 209: 7, 211: 2, 241: 6, 249: 8, 288: 5, 289: 8, 298: 8, 304: 1, 309: 8, 313: 8, 320: 3, 322: 7, 328: 1, 338: 6, 340: 6, 352: 5, 381: 8, 384: 4, 386: 8, 388: 8, 393: 8, 398: 8, 413: 8, 417: 7, 419: 1, 422: 4, 426: 7, 431: 8, 442: 8, 451: 8, 452: 8, 453: 6, 454: 8, 455: 7, 462: 4, 463: 3, 479: 3, 481: 7, 485: 8, 489: 8, 497: 8, 499: 3, 500: 6, 501: 8, 508: 8, 510: 8, 532: 6, 554: 3, 560: 8, 562: 8, 563: 5, 564: 5, 567: 5, 573: 1, 577: 8, 608: 8, 609: 6, 610: 6, 611: 6, 612: 8, 613: 8, 647: 6, 707: 8, 715: 8, 717: 5, 753: 5, 761: 7, 840: 5, 842: 5, 844: 8, 866: 4, 869: 4, 880: 6, 961: 8, 969: 8, 977: 8, 979: 8, 985: 5, 1001: 8, 1005: 6, 1009: 8, 1017: 8, 1020: 8, 1033: 7, 1034: 7, 1105: 6, 1217: 8, 1221: 5, 1225: 8, 1233: 8, 1249: 8, 1257: 6, 1265: 8, 1267: 1, 1280: 4, 1296: 4, 1300: 8, 1322: 6, 1328: 4, 1417: 8, 1601: 8, 1906: 7, 1907: 7, 1912: 7, 1914: 7, 1919: 7, 1920: 7, 1930: 7, 2016: 8, 2024: 8
}],
CAR.ESCALADE_ESV: [
{
309: 1, 848: 8, 849: 8, 850: 8, 851: 8, 852: 8, 853: 8, 854: 3, 1056: 6, 1057: 8, 1058: 8, 1059: 8, 1060: 8, 1061: 8, 1062: 8, 1063: 8, 1064: 8, 1065: 8, 1066: 8, 1067: 8, 1068: 8, 1120: 8, 1121: 8, 1122: 8, 1123: 8, 1124: 8, 1125: 8, 1126: 8, 1127: 8, 1128: 8, 1129: 8, 1130: 8, 1131: 8, 1132: 8, 1133: 8, 1134: 8, 1135: 8, 1136: 8, 1137: 8, 1138: 8, 1139: 8, 1140: 8, 1141: 8, 1142: 8, 1143: 8, 1146: 8, 1147: 8, 1148: 8, 1149: 8, 1150: 8, 1151: 8, 1216: 8, 1217: 8, 1218: 8, 1219: 8, 1220: 8, 1221: 8, 1222: 8, 1223: 8, 1224: 8, 1225: 8, 1226: 8, 1232: 8, 1233: 8, 1234: 8, 1235: 8, 1236: 8, 1237: 8, 1238: 8, 1239: 8, 1240: 8, 1241: 8, 1242: 8, 1787: 8, 1788: 8
}],
}
DBC: Dict[str, Dict[str, str]] = defaultdict(lambda: dbc_dict('gm_global_a_powertrain_generated', 'gm_global_a_object', chassis_dbc='gm_global_a_chassis'))