Travel driving apparatus of vehicle

A travel driving apparatus of a vehicle, comprising:

• a transformer of which maximum input/output power is changed based on a temperature condition;
• a first electrical motor regenerating power by rotational force of either one of a front wheel and a rear wheel of the vehicle, and causing the power to be transformed by the transformer and to be supplied to a battery;
• a generator generating power by being driven by an internal combustion engine and causing the power to be transformed by the transformer and to be supplied to the battery;
• an engine controller that controls the internal combustion engine;
• a hybrid controller including a processor and a storage storing a program that causes the processor to:
• calculate, as a first calculator, regenerated power of the first electrical motor such that regenerative braking torque not less than a predetermined level is exerted at the either one of the wheels of the vehicle;
• and
• calculate, as a second calculator, generated power of the generator, wherein
• the second calculator sets a difference obtained by subtracting the regenerated power calculated at the first calculator from the maximum input/output power of the transformer that changes based on the temperature condition as maximum generated power of the generator,
• wherein the hybrid controller drives the first electric motor based on the calculated regenerated power, and the engine controller drives the internal combustion engine so the generator generates power based on the set difference, such that a total of the regenerated power of the first motor and the generated power of the generator is input to the transformer to prevent the total power input to the transformer from exceeding the maximum input/output power.