Rover Ackermann module (#23024)

New module handling Ackermann rover guidance and control.
Only enabled in SITL and in the rover builds for now.

ROMFS/px4fmu_common/init.d/CMakeLists.txt

@@ -84,6 +84,13 @@ if(CONFIG_MODULES_DIFFERENTIAL_DRIVE)
 	)
 endif()
 
+if(CONFIG_MODULES_ROVER_ACKERMANN)
+	px4_add_romfs_files(
+		rc.rover_ackermann_apps
+		rc.rover_ackermann_defaults
+	)
+endif()
+
 if(CONFIG_MODULES_UUV_ATT_CONTROL)
 	px4_add_romfs_files(
 		rc.uuv_apps

ROMFS/px4fmu_common/init.d/airframes/50010_ackermann_rover_generic

@@ -0,0 +1,12 @@
+#!/bin/sh
+#
+# @name Generic ackermann rover
+#
+# @type Rover
+# @class Rover
+#
+# @board px4_fmu-v2 exclude
+# @board bitcraze_crazyflie exclude
+#
+
+. ${R}etc/init.d/rc.rover_ackermann_defaults

ROMFS/px4fmu_common/init.d/airframes/CMakeLists.txt

@@ -149,6 +149,12 @@ if(CONFIG_MODULES_DIFFERENTIAL_DRIVE)
 	)
 endif()
 
+if(CONFIG_MODULES_ROVER_ACKERMANN)
+	px4_add_romfs_files(
+		50010_ackermann_rover_generic
+	)
+endif()
+
 if(CONFIG_MODULES_UUV_ATT_CONTROL)
 	px4_add_romfs_files(
 		# [60000, 61000] (Unmanned) Underwater Robots

ROMFS/px4fmu_common/init.d/rc.rover_ackermann_apps

@@ -0,0 +1,11 @@
+#!/bin/sh
+# Standard apps for a ackermann drive rover.
+
+# Start the attitude and position estimator.
+ekf2 start &
+
+# Start rover ackermann drive controller.
+rover_ackermann start
+
+# Start Land Detector.
+land_detector start rover

ROMFS/px4fmu_common/init.d/rc.rover_ackermann_defaults

@@ -0,0 +1,13 @@
+#!/bin/sh
+# Ackermann rover parameters.
+
+set VEHICLE_TYPE rover_ackermann
+param set-default MAV_TYPE 10 # MAV_TYPE_GROUND_ROVER
+param set-default CA_AIRFRAME 5 # Rover (Ackermann)
+param set-default CA_R_REV 1 # Motor is assumed to be reversible
+param set-default EKF2_MAG_TYPE 1 # make sure magnetometer is fused even when not flying
+param set-default EKF2_GBIAS_INIT 0.01
+param set-default EKF2_ANGERR_INIT 0.01
+param set-default NAV_ACC_RAD 0.5 # Waypoint acceptance radius
+param set-default NAV_RCL_ACT 6 # Disarm on manual control loss
+param set-default COM_FAIL_ACT_T 1 # Delay before failsafe after rc loss

ROMFS/px4fmu_common/init.d/rc.vehicle_setup

@@ -41,6 +41,15 @@ then
 	. ${R}etc/init.d/rc.rover_differential_apps
 fi
 
+#
+# Ackermann Rover setup.
+#
+if [ $VEHICLE_TYPE = rover_ackermann ]
+then
+	# Start ackermann drive rover apps.
+	. ${R}etc/init.d/rc.rover_ackermann_apps
+fi
+
 #
 # VTOL setup.
 #