67 lines
2.8 KiB
Python
67 lines
2.8 KiB
Python
import numpy as np
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from opendbc.can import CANPacker
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from opendbc.car import Bus
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from opendbc.car.lateral import apply_steer_angle_limits_vm
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from opendbc.car.interfaces import CarControllerBase
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from opendbc.car.tesla.teslacan import TeslaCAN
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from opendbc.car.tesla.values import CarControllerParams
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from opendbc.car.vehicle_model import VehicleModel
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def get_safety_CP():
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# We use the TESLA_MODEL_Y platform for lateral limiting to match safety
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# A Model 3 at 40 m/s using the Model Y limits sees a <0.3% difference in max angle (from curvature factor)
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from opendbc.car.tesla.interface import CarInterface
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return CarInterface.get_non_essential_params("TESLA_MODEL_Y")
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class CarController(CarControllerBase):
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def __init__(self, dbc_names, CP):
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super().__init__(dbc_names, CP)
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self.apply_angle_last = 0
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self.packer = CANPacker(dbc_names[Bus.party])
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self.tesla_can = TeslaCAN(self.packer)
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# Vehicle model used for lateral limiting
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self.VM = VehicleModel(get_safety_CP())
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def update(self, CC, CS, now_nanos):
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actuators = CC.actuators
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can_sends = []
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# Tesla EPS enforces disabling steering on heavy lateral override force.
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# When enabling in a tight curve, we wait until user reduces steering force to start steering.
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# Canceling is done on rising edge and is handled generically with CC.cruiseControl.cancel
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lat_active = CC.latActive and CS.hands_on_level < 3
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if self.frame % 2 == 0:
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# Angular rate limit based on speed
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self.apply_angle_last = apply_steer_angle_limits_vm(actuators.steeringAngleDeg, self.apply_angle_last, CS.out.vEgoRaw, CS.out.steeringAngleDeg,
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lat_active, CarControllerParams, self.VM)
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can_sends.append(self.tesla_can.create_steering_control(self.apply_angle_last, lat_active))
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if self.frame % 10 == 0:
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can_sends.append(self.tesla_can.create_steering_allowed())
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# Longitudinal control
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if self.CP.openpilotLongitudinalControl:
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if self.frame % 4 == 0:
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state = 13 if CC.cruiseControl.cancel else 4 # 4=ACC_ON, 13=ACC_CANCEL_GENERIC_SILENT
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accel = float(np.clip(actuators.accel, CarControllerParams.ACCEL_MIN, CarControllerParams.ACCEL_MAX))
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cntr = (self.frame // 4) % 8
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can_sends.append(self.tesla_can.create_longitudinal_command(state, accel, cntr, CS.out.vEgo, CC.longActive))
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else:
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# Increment counter so cancel is prioritized even without openpilot longitudinal
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if CC.cruiseControl.cancel:
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cntr = (CS.das_control["DAS_controlCounter"] + 1) % 8
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can_sends.append(self.tesla_can.create_longitudinal_command(13, 0, cntr, CS.out.vEgo, False))
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# TODO: HUD control
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new_actuators = actuators.as_builder()
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new_actuators.steeringAngleDeg = self.apply_angle_last
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self.frame += 1
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return new_actuators, can_sends
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