VW MQB: Longitudinal prereqs

selfdrive/car/volkswagen/carcontroller.py

@@ -86,12 +86,13 @@ class CarController():
 
     # FIXME: this entire section is in desperate need of refactoring
 
+    if CS.CP.pcmCruise:
       if frame > self.graMsgStartFramePrev + P.GRA_VBP_STEP:
         if not enabled and CS.out.cruiseState.enabled:
           # Cancel ACC if it's engaged with OP disengaged.
           self.graButtonStatesToSend = BUTTON_STATES.copy()
           self.graButtonStatesToSend["cancel"] = True
-      elif enabled and CS.out.standstill:
+        elif enabled and CS.esp_hold_confirmation:
           # Blip the Resume button if we're engaged at standstill.
           # FIXME: This is a naive implementation, improve with visiond or radar input.
           self.graButtonStatesToSend = BUTTON_STATES.copy()

selfdrive/car/volkswagen/carstate.py

@@ -27,7 +27,7 @@ class CarState(CarStateBase):
 
     ret.vEgoRaw = float(np.mean([ret.wheelSpeeds.fl, ret.wheelSpeeds.fr, ret.wheelSpeeds.rl, ret.wheelSpeeds.rr]))
     ret.vEgo, ret.aEgo = self.update_speed_kf(ret.vEgoRaw)
-    ret.standstill = bool(pt_cp.vl["ESP_21"]["ESP_Haltebestaetigung"])
+    ret.standstill = ret.vEgo < 0.1
 
     # Update steering angle, rate, yaw rate, and driver input torque. VW send
     # the sign/direction in a separate signal so they must be recombined.
@@ -47,6 +47,7 @@ class CarState(CarStateBase):
     ret.gasPressed = ret.gas > 0
     ret.brake = pt_cp.vl["ESP_05"]["ESP_Bremsdruck"] / 250.0  # FIXME: this is pressure in Bar, not sure what OP expects
     ret.brakePressed = bool(pt_cp.vl["ESP_05"]["ESP_Fahrer_bremst"])
+    self.esp_hold_confirmation = pt_cp.vl["ESP_21"]["ESP_Haltebestaetigung"]
 
     # Update gear and/or clutch position data.
     if trans_type == TransmissionType.automatic:
@@ -94,13 +95,13 @@ class CarState(CarStateBase):
     ret.stockAeb = bool(ext_cp.vl["ACC_10"]["ANB_Teilbremsung_Freigabe"]) or bool(ext_cp.vl["ACC_10"]["ANB_Zielbremsung_Freigabe"])
 
     # Update ACC radar status.
-    accStatus = pt_cp.vl["TSK_06"]["TSK_Status"]
+    self.tsk_status = pt_cp.vl["TSK_06"]["TSK_Status"]
-    if accStatus == 2:
+    if self.tsk_status == 2:
       # ACC okay and enabled, but not currently engaged
       ret.cruiseState.available = True
       ret.cruiseState.enabled = False
-    elif accStatus in [3, 4, 5]:
+    elif self.tsk_status in [3, 4, 5]:
-      # ACC okay and enabled, currently engaged and regulating speed (3) or engaged with driver accelerating (4) or overrun (5)
+      # ACC okay and enabled, currently regulating speed (3) or driver accel override (4) or overrun coast-down (5)
       ret.cruiseState.available = True
       ret.cruiseState.enabled = True
     else:

selfdrive/car/volkswagen/interface.py

@@ -43,7 +43,7 @@ class CarInterface(CarInterfaceBase):
       else:
         ret.networkLocation = NetworkLocation.fwdCamera
 
-    # Global tuning defaults, can be overridden per-vehicle
+    # Global lateral tuning defaults, can be overridden per-vehicle
 
     ret.steerActuatorDelay = 0.05
     ret.steerRateCost = 1.0
@@ -190,6 +190,8 @@ class CarInterface(CarInterfaceBase):
     # Vehicle health and operation safety checks
     if self.CS.parkingBrakeSet:
       events.add(EventName.parkBrake)
+    if self.CS.tsk_status in [6, 7]:
+      events.add(EventName.accFaulted)
 
     # Low speed steer alert hysteresis logic
     if self.CP.minSteerSpeed > 0. and ret.vEgo < (self.CP.minSteerSpeed + 1.):