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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#!/usr/bin/env python3
import math
from cereal import car
from common.realtime import DT_CTRL
from selfdrive.car import get_safety_config
from selfdrive.car.interfaces import CarInterfaceBase
from selfdrive.car.body.values import SPEED_FROM_RPM
class CarInterface(CarInterfaceBase):
@staticmethod
def _get_params(ret, candidate, fingerprint, car_fw, experimental_long, docs):
ret.notCar = True
ret.carName = "body"
ret.safetyConfigs = [get_safety_config(car.CarParams.SafetyModel.body)]
ret.minSteerSpeed = -math.inf
ret.maxLateralAccel = math.inf # TODO: set to a reasonable value
ret.steerRatio = 0.5
ret.steerLimitTimer = 1.0
ret.steerActuatorDelay = 0.
ret.mass = 9
ret.wheelbase = 0.406
ret.wheelSpeedFactor = SPEED_FROM_RPM
ret.centerToFront = ret.wheelbase * 0.44
ret.radarUnavailable = True
ret.openpilotLongitudinalControl = True
ret.steerControlType = car.CarParams.SteerControlType.angle
return ret
def _update(self, c):
ret = self.CS.update(self.cp)
# wait for everything to init first
if self.frame > int(5. / DT_CTRL):
# body always wants to enable
ret.init('events', 1)
ret.events[0].name = car.CarEvent.EventName.pcmEnable
ret.events[0].enable = True
self.frame += 1
return ret
def apply(self, c, now_nanos):
return self.CC.update(c, self.CS, now_nanos)