A work machine (10) comprises a first power unit (12) couplable with a first primary load (18)； a first temperature sensor (41) associated with said first power unit (12) and providing a first output signal； a second power unit (14) mechanically independent from said first power unit； a second temperature sensor (45) associated with said second power unit and providing a second output signal； a first motor/generator (22) mechanically coupled with said first power unit (12)； a second motor/generator (30) mechanically coupled with said second power unit (14) and electrically coupled to said first motor/generator (22)； and at least one electrical processing circuit (50) coupled with the temperature sensors (41, 45) and the motor/generators (22, 30). The electrical processing circuit (50) is configured for selective bidirectional transfer of electrical power between the motor/generators (22, 30), dependent on said first output signal and said second output signal.
