Abstract: There is provided a charging system configured to charge an auxiliary battery of a vehicle including a tractor, a trailer, and a converter coupled to the auxiliary battery, the charging system including a switch configured to electrically couple an electrical system of the tractor to the auxiliary battery, a diode network configured to receive electrical power from a plurality of auxiliary power sources and to supply power to the converter, and a controller configured to monitor a first input voltage at an input of the switch, a second input voltage at an output of the diode network, and an auxiliary battery voltage, and to control states of the switch and the converter based on the monitored first and second input voltages and the auxiliary battery voltage.

Abstract: A status monitoring circuit for monitoring the status of an external device coupled to an electrical system of a vehicle, the status monitoring device including a sensing unit coupled to the external device and configured to sense an input voltage and an input current at the external device, a monitoring unit coupled to the sensing unit and configured to determine a normal operation of the external device based on the sensed input voltage, and, in response, to detect an undercurrent condition of the external device based on the sensed input current, and a status indicator coupled to the monitoring unit and configured to display a fault indication in response to the monitoring unit detecting the undercurrent condition.

Abstract: A modular lighting system including: a plurality of light modules; a master controller including a first sensor configured to detect a first trigger event, the master controller being configured to control a state of the plurality of light modules based on the detection of the first trigger event; and one or more dedicated controllers including a first dedicated controller, the first dedicated controller including a second sensor configured to detect a second trigger event, the first dedicated controller being configured to control one or more adjacent light modules of the plurality of light modules based on the detection of an associated second trigger event, wherein the plurality of light modules and the one or more dedicated controllers are coupled to the master controller along a serial connection through one or more pass-through electrical connections.

Abstract: Provided is an electrical communication link between a tractor and a trailer, the trailer comprising one or more auxiliary electrical devices, the electrical communication link including a first transceiver coupled to the tractor and configured to receive a first signal from the tractor and to wirelessly transmit a control signal corresponding to the first signal, a second transceiver coupled to the trailer and configured to wirelessly receive the control signal and to transmit a second signal corresponding to the control signal to the one or more auxiliary devices.

Abstract: A device for controlling and monitoring an electrical system of a vehicle and trailer while the vehicle and trailer are stationary or in motion.

Abstract: A status monitoring circuit for monitoring the status of an external device coupled to an electrical system of a vehicle, the status monitoring device including a sensing unit coupled to the external device and configured to sense an input voltage and an input current at the external device, a monitoring unit coupled to the sensing unit and configured to determine a normal operation of the external device based on the sensed input voltage, and, in response, to detect an undercurrent condition of the external device based on the sensed input current, and a status indicator coupled to the monitoring unit and configured to display a fault indication in response to the monitoring unit detecting the undercurrent condition.