AN ELECTRIC POWER TRANSMISSION SYSTEM FOR A VEHICLE

The invention relates to an electric power transmission system () for a vehicle () comprising an energy storage system () for storing electrical power and a bidirectional power system () connected to the energy storage system, the bidirectional power system comprising a bidirectional DC/AC converter () for power conversion, the bidirectional DC/AC converter () being connected to the energy storage system, a junction unit () connected to the bidirectional DC/AC converter and comprising a charging interface () for connecting to an external power supply grid (), and an electrical power take-off (ePTO) () interface for connecting to an external power load (), and wherein the bidirectional power system is configured to perform any one of the following operations: an ePTO first operation (), in which power is transferred from the energy storage system to the ePTO interface via the bidirectional power system, an ePTO second operation (), in which power is transferred from the charging interface to the ePTO interface via the bidirectional power system, and a charging operation (), in which power is transferred from the charging interface to the energy storage system via the bidirectional power system.