refactor: cleanup gravity constant handling (#35866)

* refactor: move lateral methods from init to lateral.py (#2594)

* Extracting lateral methods to lateral.py

* cleaning

* more cleaning

* more cleaning

* Making sure it remains where it should

* Leave rate_limit where it belongs

* Moving things to `car/controls/`

* Moving rate limit to get a taste of the changes

* clean

* copy verbatim

* clean up

* more

* now we can format

---------

Co-authored-by: Shane Smiskol <shane@smiskol.com>

* No need to change order of import

* refactor: consolidate ACCELERATION_DUE_TO_GRAVITY import path

* bump opendbc

* update refs

* don't import from opendbc

---------

Co-authored-by: Shane Smiskol <shane@smiskol.com>
Co-authored-by: Adeeb Shihadeh <adeebshihadeh@gmail.com>

selfdrive/controls/controlsd.py

@@ -4,7 +4,7 @@ from numbers import Number
 
 from cereal import car, log
 import cereal.messaging as messaging
-from openpilot.common.conversions import Conversions as CV
+from openpilot.common.constants import CV
 from openpilot.common.params import Params
 from openpilot.common.realtime import config_realtime_process, Priority, Ratekeeper
 from openpilot.common.swaglog import cloudlog

selfdrive/controls/lib/desire_helper.py

@@ -1,5 +1,5 @@
 from cereal import log
-from openpilot.common.conversions import Conversions as CV
+from openpilot.common.constants import CV
 from openpilot.common.realtime import DT_MDL
 
 LaneChangeState = log.LaneChangeState

selfdrive/controls/lib/drive_helpers.py

@@ -1,5 +1,5 @@
 import numpy as np
-from opendbc.car.vehicle_model import ACCELERATION_DUE_TO_GRAVITY
+from openpilot.common.constants import ACCELERATION_DUE_TO_GRAVITY
 from openpilot.common.realtime import DT_CTRL, DT_MDL
 
 MIN_SPEED = 1.0

selfdrive/controls/lib/latcontrol_torque.py

@@ -4,7 +4,7 @@ import numpy as np
 from cereal import log
 from opendbc.car.lateral import FRICTION_THRESHOLD, get_friction
 from opendbc.car.interfaces import LatControlInputs
-from opendbc.car.vehicle_model import ACCELERATION_DUE_TO_GRAVITY
+from openpilot.common.constants import ACCELERATION_DUE_TO_GRAVITY
 from openpilot.selfdrive.controls.lib.latcontrol import LatControl
 from openpilot.common.pid import PIDController
 

selfdrive/controls/lib/ldw.py

@@ -1,6 +1,6 @@
 from cereal import log
 from openpilot.common.realtime import DT_CTRL
-from openpilot.common.conversions import Conversions as CV
+from openpilot.common.constants import CV
 
 
 CAMERA_OFFSET = 0.04

selfdrive/controls/lib/longitudinal_planner.py

@@ -4,7 +4,7 @@ import numpy as np
 
 import cereal.messaging as messaging
 from opendbc.car.interfaces import ACCEL_MIN, ACCEL_MAX
-from openpilot.common.conversions import Conversions as CV
+from openpilot.common.constants import CV
 from openpilot.common.filter_simple import FirstOrderFilter
 from openpilot.common.realtime import DT_MDL
 from openpilot.selfdrive.modeld.constants import ModelConstants