Car interfaces: assert reasonable centerToFront range (#27356)

* assert reasonable centerToFront values

* comment

* fix Bolt centerToFront

* Update ref_commit
old-commit-hash: 89934b35d0

selfdrive/car/gm/interface.py

@@ -213,7 +213,7 @@ class CarInterface(CarInterfaceBase):
       ret.mass = 1669. + STD_CARGO_KG
       ret.wheelbase = 2.63779
       ret.steerRatio = 16.8
-      ret.centerToFront = 2.15  # measured
+      ret.centerToFront = ret.wheelbase * 0.4
       tire_stiffness_factor = 1.0
       ret.steerActuatorDelay = 0.12
       CarInterfaceBase.configure_torque_tune(candidate, ret.lateralTuning)

selfdrive/car/tests/test_car_interfaces.py

@@ -32,7 +32,8 @@ class TestCarInterfaces(unittest.TestCase):
 
     self.assertGreater(car_params.mass, 1)
     self.assertGreater(car_params.wheelbase, 0)
-    self.assertGreater(car_params.centerToFront, 0)
+    # centerToFront is center of gravity to front wheels, assert a reasonable range
+    self.assertTrue(car_params.wheelbase * 0.3 < car_params.centerToFront < car_params.wheelbase * 0.7)
     self.assertGreater(car_params.maxLateralAccel, 0)
 
     # Longitudinal sanity checks

selfdrive/test/process_replay/ref_commit

@@ -1 +1 @@
-c7bb411b37ab7ff573402b6e4fa24f796cbb2ee8
+fbb99ee7dc0336062e6785814af82e359dcdd9bf