To quickly dissolve nonconformity when charging a battery by a generator in a hybrid vehicle equipped with the generator that charges the battery by driving an internal combustion engine.

A torque variation absorption equipment 30 has an electric motor 20 driven by electric power from the battery 90 and the internal combustion engine 10 as a drive resource, and absorbs the variation torque of the internal combustion engine 10 in the hybrid vehicle equipped with the generator 70 that charges to the battery 90 the electric energy generated by driving the internal combustion engine 10. The variation torque of the internal combustion engine 10 is absorbed by the first elastic member 36 and the second elastic member 34 of bigger torsional rigidity than the first elastic member 36. The torsional rigidity of the first elastic member 36 is set up so that it can absorb the variation torque of the internal combustion engine 10 when the internal combustion engine 10 causes the generator 70 to generate power.