open source driving agent
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from cereal import car
from opendbc.can.parser import CANParser
from selfdrive.car.interfaces import CarStateBase
from selfdrive.car.body.values import DBC
STARTUP_TICKS = 100
class CarState(CarStateBase):
def update(self, cp):
ret = car.CarState.new_message()
ret.wheelSpeeds.fl = cp.vl['MOTORS_DATA']['SPEED_L']
ret.wheelSpeeds.fr = cp.vl['MOTORS_DATA']['SPEED_R']
ret.vEgoRaw = ((ret.wheelSpeeds.fl + ret.wheelSpeeds.fr) / 2.) * self.CP.wheelSpeedFactor
ret.vEgo, ret.aEgo = self.update_speed_kf(ret.vEgoRaw)
ret.standstill = False
ret.steerFaultPermanent = any([cp.vl['VAR_VALUES']['MOTOR_ERR_L'], cp.vl['VAR_VALUES']['MOTOR_ERR_R'],
cp.vl['VAR_VALUES']['FAULT']])
ret.charging = cp.vl["BODY_DATA"]["CHARGER_CONNECTED"] == 1
ret.fuelGauge = cp.vl["BODY_DATA"]["BATT_PERCENTAGE"] / 100
# irrelevant for non-car
ret.gearShifter = car.CarState.GearShifter.drive
ret.cruiseState.enabled = True
ret.cruiseState.available = True
return ret
@staticmethod
def get_can_parser(CP):
signals = [
# sig_name, sig_address
("SPEED_L", "MOTORS_DATA"),
("SPEED_R", "MOTORS_DATA"),
("ELEC_ANGLE_L", "MOTORS_DATA"),
("ELEC_ANGLE_R", "MOTORS_DATA"),
("COUNTER", "MOTORS_DATA"),
("CHECKSUM", "MOTORS_DATA"),
("IGNITION", "VAR_VALUES"),
("ENABLE_MOTORS", "VAR_VALUES"),
("FAULT", "VAR_VALUES"),
("MOTOR_ERR_L", "VAR_VALUES"),
("MOTOR_ERR_R", "VAR_VALUES"),
("MCU_TEMP", "BODY_DATA"),
("BATT_VOLTAGE", "BODY_DATA"),
("BATT_PERCENTAGE", "BODY_DATA"),
("CHARGER_CONNECTED", "BODY_DATA"),
]
checks = [
("MOTORS_DATA", 100),
("VAR_VALUES", 10),
("BODY_DATA", 1),
]
return CANParser(DBC[CP.carFingerprint]["pt"], signals, checks, 0)