fix factor with eEgoRaw

Author: sunnyhaibin

opendbc/car/hyundai/carstate.py

@@ -14,7 +14,8 @@
 
 PREV_BUTTON_SAMPLES = 8
 CLUSTER_SAMPLE_RATE = 20  # frames
-STANDSTILL_THRESHOLD = 12 * 0.03125 * CV.KPH_TO_MS
+WHEEL_SPEED_FACTOR = 0.03125
+STANDSTILL_THRESHOLD = 12 * WHEEL_SPEED_FACTOR * CV.KPH_TO_MS
 
 BUTTONS_DICT = {Buttons.RES_ACCEL: ButtonType.accelCruise, Buttons.SET_DECEL: ButtonType.decelCruise,
                 Buttons.GAP_DIST: ButtonType.gapAdjustCruise, Buttons.CANCEL: ButtonType.cancel}
@@ -226,7 +227,7 @@ def update_canfd(self, can_parsers) -> structs.CarState:
     )
     ret.vEgoRaw = (ret.wheelSpeeds.fl + ret.wheelSpeeds.fr + ret.wheelSpeeds.rl + ret.wheelSpeeds.rr) / 4.
     ret.vEgo, ret.aEgo = self.update_speed_kf(ret.vEgoRaw)
-    ret.standstill = ret.vEgoRaw <= STANDSTILL_THRESHOLD
+    ret.standstill = (ret.vEgoRaw * WHEEL_SPEED_FACTOR) <= STANDSTILL_THRESHOLD
 
     ret.steeringRateDeg = cp.vl["STEERING_SENSORS"]["STEERING_RATE"]
     ret.steeringAngleDeg = cp.vl["STEERING_SENSORS"]["STEERING_ANGLE"]