Files
oscarpilot/selfdrive/frogpilot/functions/speed_limit_controller.py
FrogAi 22bfc8d9b7 Speed limit controller
Added toggle to control the cruise set speed according to speed limit supplied by OSM, NOO, or the vehicle itself.

Co-Authored-By: Jacob Pfeifer <jacob@pfeifer.dev>
Co-Authored-By: Efini <19368997+efini@users.noreply.github.com>
Co-Authored-By: Kumar <36933347+rav4kumar@users.noreply.github.com>
2024-01-26 10:52:17 -07:00

120 lines
3.7 KiB
Python

from openpilot.common.conversions import Conversions as CV
from openpilot.common.params import Params
import json
params = Params()
params_memory = Params("/dev/shm/params")
class SpeedLimitController:
car_speed_limit: float = 0 # m/s
lst_speed_limit: float = 0 # m/s
map_speed_limit: float = 0 # m/s
nav_speed_limit: float = 0 # m/s
def __init__(self) -> None:
self.update_frogpilot_params()
self.write_car_state()
self.write_map_state()
self.write_nav_state()
def update_current_max_velocity(self, max_v: float, load_state: bool = True, write_state: bool = True) -> None:
if load_state:
self.load_state()
@property
def offset(self) -> float:
if self.speed_limit < 14:
return self.offset1
elif self.speed_limit < 24:
return self.offset2
elif self.speed_limit < 29:
return self.offset3
else:
return self.offset4
@property
def speed_limit(self) -> float:
params_memory.put_bool("SLCExperimentalMode", False)
limits = [self.car_speed_limit, self.map_speed_limit, self.nav_speed_limit]
filtered_limits = [limit for limit in limits if limit > 0]
if self.highest and filtered_limits:
return max(filtered_limits)
if self.lowest and filtered_limits:
return min(filtered_limits)
priority_orders = [
["nav", "car", "map"],
["nav", "map", "car"],
["nav", "map"],
["nav", "car"],
["nav"],
["map", "car", "nav"],
["map", "nav", "car"],
["map", "nav"],
["map", "car"],
["map"],
["car", "nav", "map"],
["car", "map", "nav"],
["car", "map"],
["car", "nav"],
["car"]
]
if self.speed_limit_priority < len(priority_orders):
for source in priority_orders[self.speed_limit_priority]:
limit = getattr(self, f"{source}_speed_limit", 0)
if limit > 0:
self.prv_speed_limit = limit
return limit
if self.use_experimental_mode:
params_memory.put_bool("SLCExperimentalMode", True)
return 0
elif self.use_previous_limit:
if self.lst_speed_limit != self.prv_speed_limit:
params.put_int("PreviousSpeedLimit", self.prv_speed_limit * 100)
self.lst_speed_limit = self.prv_speed_limit
return self.prv_speed_limit
return 0
@property
def desired_speed_limit(self):
return self.speed_limit + self.offset if self.speed_limit else 0
def load_state(self):
self.car_speed_limit = json.loads(params_memory.get("CarSpeedLimit"))
self.map_speed_limit = json.loads(params_memory.get("MapSpeedLimit"))
self.nav_speed_limit = json.loads(params_memory.get("NavSpeedLimit"))
def write_car_state(self):
params_memory.put("CarSpeedLimit", json.dumps(self.car_speed_limit))
def write_map_state(self):
params_memory.put("MapSpeedLimit", json.dumps(self.map_speed_limit))
def write_nav_state(self):
params_memory.put("NavSpeedLimit", json.dumps(self.nav_speed_limit))
def update_frogpilot_params(self):
conversion = CV.KPH_TO_MS if params.get_bool("IsMetric") else CV.MPH_TO_MS
self.offset1 = params.get_int("Offset1") * conversion
self.offset2 = params.get_int("Offset2") * conversion
self.offset3 = params.get_int("Offset3") * conversion
self.offset4 = params.get_int("Offset4") * conversion
self.speed_limit_priority = params.get_int("SLCPriority")
self.highest = self.speed_limit_priority == 15
self.lowest = self.speed_limit_priority == 16
slc_fallback = params.get_int("SLCFallback")
self.use_experimental_mode = slc_fallback == 1
self.use_previous_limit = slc_fallback == 2
self.prv_speed_limit = params.get_int("PreviousSpeedLimit") / 100
SpeedLimitController = SpeedLimitController()