Abstract: A charging system for a vehicle (e.g., equipped with a TRU and/or an APU) is provided. The charging system includes a battery. The charging system further includes a thermoelectric generator (TEG) module. The TEG module is thermally interposable between hot and cold zones of the vehicle. Being thermally interposable between the hot and cold zones of the vehicle, the TEG module is configured to generate electricity for charging the battery (e.g., of the TRU and/or the APU).

Abstract: A high-voltage system for a transport refrigeration unit (TRU) includes a high-voltage direct current (HVDC) source, and a first converter coupling the HVDC source to a distribution bus, the distribution bus is coupled to a compressor, at least one condenser, and at least one evaporator. A distribution bus is coupled to a compressor bus coupled to the compressor, a condenser bus coupled to the at least one condenser, and an evaporator bus coupled to the at least one evaporator.

Abstract: A low-voltage system of a transport refrigeration unit (TRU) includes a low-voltage direct current (LVDC) source; and a distribution bus coupled to the LVDC, the distribution bus is coupled to a compressor, at least one condenser, and at least one evaporator.