Abstract: Aspects of the invention are directed towards a system and method for safe decoupling of the external power supply from a vehicle. The technology described herein provides an indication or an alert to the user at an appropriate time and avoids the possible damage to the system. The system comprises an electrical port by which the refrigerator can be connected to an external AC mains supply via an electrical cable when the vehicle is in stationary state. The system further comprises a refrigerator main controller unit (RMU) for controlling the power delivered to the refrigerator in both stationary and driving states of the vehicle. There is a safety system installed for restricting the vehicle from being driven when the electrical port of the system is connected to the AC mains supply via the electrical cable and the refrigerator is powered by the AC mains supply.

Abstract: A system for monitoring a transport refrigeration device of a vehicle that is external to a cab of the vehicle and provides cooling to another portion of the vehicle separate from the cab includes a refrigeration controller associated with the refrigeration device and configured to control operation of the refrigeration device. A communication module is associated with the refrigeration controller. A display situated in the cab is configured to provide a first visual representation of information regarding the refrigeration device and at least one second visual representation of at least one other type of information. The display obtains the information regarding the refrigeration device from the refrigeration controller through communications with the communication module.