A warning device for a warning device deployment system for an autonomous vehicle. The warning device includes a tetrahedron frame having four triangular faces and at least one reflective material on the tetrahedron frame. The tetrahedron frame defines an expanded shape of the warning device. The warning device is self-expandable such that the warning device is compactable to a reduced volume when the warning device is stored in the warning device deployment system and expandable to the expanded shape when the warning device is deployed from the warning device deployment system. A warning device deployment system includes one or more warning device deployment mechanisms attached to the autonomous vehicle and the one or more warning devices stored in the one or more warning device deployment mechanisms. The one or more warning devices are deployed from the one or more warning device deployment mechanisms.

A warning device for a warning device deployment system for an autonomous vehicle. The warning device includes a tetrahedron frame having four triangular faces and at least one reflective material on the tetrahedron frame. The tetrahedron frame defines an expanded shape of the warning device. The warning device is self-expandable such that the warning device is compactable to a reduced volume when the warning device is stored in the warning device deployment system and expandable to the expanded shape when the warning device is deployed from the warning device deployment system. A warning device deployment system includes one or more warning device deployment mechanisms attached to the autonomous vehicle and the one or more warning devices stored in the one or more warning device deployment mechanisms. The one or more warning devices are deployed from the one or more warning device deployment mechanisms.

Systems and methods for automatically deploying warning devices for an autonomous vehicle. A method includes automatically stopping the autonomous vehicle when there is an emergency and automatically deploying one or more warning devices from one or more warning device deployment mechanisms attached to the autonomous vehicle while the autonomous vehicle is stopping such that the warning devices drop from the warning device deployment mechanisms. A system includes one or more warning device deployment mechanisms attached to the autonomous vehicle and one or more warning devices stored in the one or more warning device deployment mechanisms. The system includes one or more controllers configured to automatically stop the autonomous vehicle when there is an emergency, and automatically deploy the warning devices from the warning device deployment mechanisms while the autonomous vehicle is stopping such that the warning devices drop from the warning device deployment mechanisms.

Systems and methods for automatically deploying warning devices for an autonomous vehicle. A method includes automatically stopping the autonomous vehicle when there is an emergency and automatically deploying one or more warning devices from one or more warning device deployment mechanisms attached to the autonomous vehicle while the autonomous vehicle is stopping such that the warning devices drop from the warning device deployment mechanisms. A system includes one or more warning device deployment mechanisms attached to the autonomous vehicle and one or more warning devices stored in the one or more warning device deployment mechanisms. The system includes one or more controllers configured to automatically stop the autonomous vehicle when there is an emergency, and automatically deploy the warning devices from the warning device deployment mechanisms while the autonomous vehicle is stopping such that the warning devices drop from the warning device deployment mechanisms.

Systems and methods for deploying warning devices for a vehicle. The vehicle can be an autonomous vehicle. A method of deploying warning devices for a vehicle includes deploying one or more warning devices from the vehicle, the one or more warning devices being coupled to a deployment vehicle. Deploying the one or more warning devices includes controlling the deployment vehicle. A system for deploying warning devices for a vehicle includes a deployment vehicle and one or more warning devices coupled to the deployment vehicle. The system includes a controller configured to deploy the one or more warning devices from the vehicle. Deploying the one or more warning devices includes the controller configured to control the deployment vehicle.

Systems and methods for deploying warning devices for a vehicle. The vehicle can be an autonomous vehicle. A method of deploying warning devices for a vehicle includes deploying one or more warning devices from the vehicle, the one or more warning devices being coupled to a deployment vehicle. Deploying the one or more warning devices includes controlling the deployment vehicle. A system for deploying warning devices for a vehicle includes a deployment vehicle and one or more warning devices coupled to the deployment vehicle. The system includes a controller configured to deploy the one or more warning devices from the vehicle. Deploying the one or more warning devices includes the controller configured to control the deployment vehicle.

Systems and methods for automatically deploying warning devices for a vehicle. The vehicle can be an autonomous vehicle. A method of automatically deploying warning devices for a vehicle includes determining a vehicle travel path of the vehicle, and generating a deployment vehicle path for a deployment vehicle based on the vehicle travel path. The method includes automatically deploying one or more warning devices from the vehicle by controlling the deployment vehicle on the deployment vehicle path. A system for automatically deploying warning devices for a vehicle includes a deployment vehicle and one or more warning devices coupled to the deployment vehicle. The system includes a controller configured to determine a vehicle travel path of the vehicle, generate a deployment vehicle path for the deployment vehicle based on the vehicle travel path, and automatically deploy the warning devices from the vehicle by controlling the deployment vehicle on the deployment vehicle path.

Systems and methods for automatically deploying warning devices for a vehicle. The vehicle can be an autonomous vehicle. A method of automatically deploying warning devices for a vehicle includes determining a vehicle travel path of the vehicle, and generating a deployment vehicle path for a deployment vehicle based on the vehicle travel path. The method includes automatically deploying one or more warning devices from the vehicle by controlling the deployment vehicle on the deployment vehicle path. A system for automatically deploying warning devices for a vehicle includes a deployment vehicle and one or more warning devices coupled to the deployment vehicle. The system includes a controller configured to determine a vehicle travel path of the vehicle, generate a deployment vehicle path for the deployment vehicle based on the vehicle travel path, and automatically deploy the warning devices from the vehicle by controlling the deployment vehicle on the deployment vehicle path.

An in-vehicle device having a function of detecting an anomaly in an in-vehicle system and an interface device having an LED for notifying an occupant of a vehicle of an anomaly state are connected via a communication path for transmitting an alternating current signal. The cathode of the LED is connected to the vehicle body ground, and the anode is connected to the communication line of the communication path via the inductor. When the in-vehicle device detects an anomaly in the in-vehicle system, the in-vehicle device notifies the occupant of the vehicle of the anomaly by applying a direct current drive signal to the communication line to drive the LED.

An in-vehicle device having a function of detecting an anomaly in an in-vehicle system and an interface device having an LED for notifying an occupant of a vehicle of an anomaly state are connected via a communication path for transmitting an alternating current signal. The cathode of the LED is connected to the vehicle body ground, and the anode is connected to the communication line of the communication path via the inductor. When the in-vehicle device detects an anomaly in the in-vehicle system, the in-vehicle device notifies the occupant of the vehicle of the anomaly by applying a direct current drive signal to the communication line to drive the LED.