Try this

ClockeNessMnstr@618386a

Author: Ross Fisher

selfdrive/controls/lib/drive_helpers.py

@@ -32,7 +32,7 @@
 
 
 class MPC_COST_LAT:
-  PATH = 1.0
+  PATH = 0.5
   HEADING = 1.0
   STEER_RATE = 1.0
 

selfdrive/controls/lib/lateral_planner.py

@@ -59,13 +59,9 @@ def update(self, sm):
     # Calculate final driving path and set MPC costs
     if self.use_lanelines:
       d_path_xyz = self.LP.get_d_path(v_ego, self.t_idxs, self.path_xyz)
-      self.lat_mpc.set_weights(MPC_COST_LAT.PATH, MPC_COST_LAT.HEADING, self.steer_rate_cost)
     else:
       d_path_xyz = self.path_xyz
-      path_cost = np.clip(abs(self.path_xyz[0, 1] / self.path_xyz_stds[0, 1]), 0.5, 1.5) * MPC_COST_LAT.PATH
-      # Heading cost is useful at low speed, otherwise end of plan can be off-heading
-      heading_cost = interp(v_ego, [5.0, 10.0], [MPC_COST_LAT.HEADING, 0.0])
-      self.lat_mpc.set_weights(path_cost, heading_cost, self.steer_rate_cost)
+    self.lat_mpc.set_weights(MPC_COST_LAT.PATH, MPC_COST_LAT.HEADING, self.steer_rate_cost)
 
     y_pts = np.interp(v_ego * self.t_idxs[:LAT_MPC_N + 1], np.linalg.norm(d_path_xyz, axis=1), d_path_xyz[:, 1])
     heading_pts = np.interp(v_ego * self.t_idxs[:LAT_MPC_N + 1], np.linalg.norm(self.path_xyz, axis=1), self.plan_yaw)