Files
sunnypilot/selfdrive/controls/lib/latcontrol_pid.py
Jason Wen d21e351003 Controls: Lateral Accel Torque Control Extension (#690)
* init

* more init

* keep it alive

* fixes

* more fixes

* more fix

* new submodule for nn data

* bump submodule

* update path to submodule

* spacing???

* update submodule path

* update submodule path

* bump

* dump

* bump

* introduce params

* Add Neural Network Lateral Control toggle to developer panel

This introduces a new toggle for enabling Neural Network Lateral Control (NNLC), providing detailed descriptions of its functionality and compatibility. It includes UI integration, car compatibility checks, and feedback links for unsupported vehicles.

* decouple even more

* static

* codespell

* remove debug

* in structs

* fix import

* convert to capnp

* fixes

* debug

* only initialize if NNLC is enabled or allow to enable

* oops

* fix initialization

* only allow engage if nnlc is off

* fix toggle param

* fix tests

* lint

* fix more test

* capnp test

* try this out

* validate if it's not None

* make it 33 to match

* align

* share the same friction input calculation

* return stock values if not enabled

* unused

* split base and child

* space

* rename

* NeuralNetworkFeedForwardModel

* less

* just use file name

* try this

* more explicit

* rename

* move it

* child class for additional controllers

* rename

* time to split out custom lateral acceleration

* move around

* space

* fix

* TODO-SP

* TODO-SP

* split nnlc and custom lat accel

* more

* not yet

* comment

* fix

---------

Co-authored-by: DevTekVE <devtekve@gmail.com>
2025-03-20 16:01:08 -04:00

49 lines
2.0 KiB
Python

import math
from cereal import log
from openpilot.selfdrive.controls.lib.latcontrol import LatControl
from openpilot.common.pid import PIDController
class LatControlPID(LatControl):
def __init__(self, CP, CP_SP, CI):
super().__init__(CP, CP_SP, CI)
self.pid = PIDController((CP.lateralTuning.pid.kpBP, CP.lateralTuning.pid.kpV),
(CP.lateralTuning.pid.kiBP, CP.lateralTuning.pid.kiV),
k_f=CP.lateralTuning.pid.kf, pos_limit=self.steer_max, neg_limit=-self.steer_max)
self.get_steer_feedforward = CI.get_steer_feedforward_function()
def reset(self):
super().reset()
self.pid.reset()
def update(self, active, CS, VM, params, steer_limited_by_controls, desired_curvature, calibrated_pose, curvature_limited):
pid_log = log.ControlsState.LateralPIDState.new_message()
pid_log.steeringAngleDeg = float(CS.steeringAngleDeg)
pid_log.steeringRateDeg = float(CS.steeringRateDeg)
angle_steers_des_no_offset = math.degrees(VM.get_steer_from_curvature(-desired_curvature, CS.vEgo, params.roll))
angle_steers_des = angle_steers_des_no_offset + params.angleOffsetDeg
error = angle_steers_des - CS.steeringAngleDeg
pid_log.steeringAngleDesiredDeg = angle_steers_des
pid_log.angleError = error
if not active:
output_steer = 0.0
pid_log.active = False
self.pid.reset()
else:
# offset does not contribute to resistive torque
steer_feedforward = self.get_steer_feedforward(angle_steers_des_no_offset, CS.vEgo)
output_steer = self.pid.update(error, override=CS.steeringPressed,
feedforward=steer_feedforward, speed=CS.vEgo)
pid_log.active = True
pid_log.p = float(self.pid.p)
pid_log.i = float(self.pid.i)
pid_log.f = float(self.pid.f)
pid_log.output = float(output_steer)
pid_log.saturated = bool(self._check_saturation(self.steer_max - abs(output_steer) < 1e-3, CS, steer_limited_by_controls, curvature_limited))
return output_steer, angle_steers_des, pid_log