An aircraft includes an autopilot system including one or more processors. The one or more processors are configured to, in response to selection of an autopilot activation button during flight of the aircraft while the aircraft is operating in a first condition, apply first control laws to automatically control the flight of the aircraft. The one or more processors are further configured to, in response to selection of the autopilot activation button while the aircraft is operating in a second condition, apply second control laws to automatically control the flight of the aircraft, where the second control laws are different from the first control laws.

A method of controlling a vessel having a plurality of thrusters, where the vessel is configured to operate in a bias mode where at least two of the thrusters provide thrust forces at least partly in opposite thrust directions, the method including estimating, by a control system, an operational condition associated with the vessel; and commanding, by the control system and based on the estimation, execution of a countermeasure associated with an activation of the bias mode, a deactivation of the bias mode or a change of a bias level of the bias mode. A control system and a vessel are also provided.

A vehicle control method and a vehicle control device are configured to control the movement of a vehicle based on operation of a terminal device located outside the vehicle. The vehicle receives from the terminal device a first signal indicating that a first button of the terminal device has been pressed. The vehicle doors are unlocked based on the reception of the first signal, and the vehicle is placed in a state in which movement control is permitted.

A system and method for protecting a rotorcraft from entering a vortex ring state, the method including monitoring a vertical speed of a rotorcraft, comparing the vertical speed to a vertical speed safety threshold, and performing vortex ring state (VRS) avoidance in response to the vertical speed exceeding the vertical speed safety threshold. The performing the VRS avoidance includes determining a power margin available from one or more engines of the rotorcraft, limiting the vertical speed of the rotorcraft in response to the power margin exceeding a threshold, and increasing a forward airspeed of the rotorcraft in response to the power margin not exceeding the threshold.

A method is provided for adjusting a flight plan rejoining trajectory of an aircraft, the method being implemented in a flight management system of the aircraft. In a first step, the rejoining trajectory comprises a guidance setpoint holding point to be reached situated in the extension of a guidance setpoint, and set manually or automatically, the guidance setpoint no longer being necessarily maintained when this setpoint holding point is passed. This first step can be preceded by a step of rejoining a guidance setpoint or a step of searching for the intersection of the current guidance setpoint trajectory with a segment of the flight plan.

A flight management system for an aircraft, includes a critical first avionics module for trajectory calculation, i.e. a module the integrity level and availability level of which are specified by regulatory standards in force, delivering as output a safe trajectory, based on a flight plan; a second module for trajectory calculation that is less critical than the critical first module, i.e. a module the integrity level and availability level of which are lower than those of the first module, delivering as output an improved trajectory that is less safe than the trajectory delivered by the critical first avionics module, based on a flight plan; a critical avionics module for trajectory verification, configured to validate or invalidate the safety of the less safe improved trajectory; and a critical avionics module for decision-making configured to select a trajectory from the safe trajectory and the less safe trajectory.

A method for assisting an aircraft in landing on a runway and an associated system includes determining a target exit point from the runway and a target taxi speed at which the aircraft has to take the target exit; calculating a target ground distance representative of a ground deceleration phase; and calculating the position of a target touchdown point on the basis of the target ground distance. The target ground distance is calculated as a function of a target deceleration profile for the aircraft to reach the target exit point at the target taxi speed.

A method for flight control of an aircraft with multiple actuators during flight is disclosed. For each actuator, a control command is computed according to at least one predetermined control law and based on pilot inputs and sensor measurements in relation to a physical state of the aircraft. The respective control commands are provided to the actuators. The control commands are independently monitored by estimating or measuring a current physical state of the aircraft and comparing it with the control commands. This comparison includes checking whether the control commands stabilize the aircraft in a stable state in the absence of both disturbances and pilot inputs according to at least one predefined criterion. If the monitoring indicates a lack of stability, transmission of the control commands is prevented and a backup control command is computed for each actuator.

A system, adapted to determine that automatic docking of a boat is completed. The system including a control unit including a processor configured to switch a control mode of the control unit to an automatic docking mode; output a control signal for controlling an automatic steering of the boat when the control mode is switched to the automatic docking mode; obtain a vibration that is exerted on the boat, wherein, when the control unit is in the automatic docking mode, the control unit is configured to end the automatic docking mode when the control unit detects the vibration.

An information output control method includes: outputting, in a first mode, information for monitoring or controlling a moving body that travels through automatic driving, to a terminal for an operator to monitor or control the moving body remotely; obtaining first information related to an event or a situation in a periphery arising when the moving body moves, and second information related to a performance of the moving body; determining, based on at least the first information, a likelihood that the moving body can respond to the event or the situation through autonomous control; and when the likelihood determined exceeds a threshold specified based on the second information, outputting the information for monitoring or controlling the moving body to the terminal in a second mode different from the first mode.