Abstract: A method for controlling a hybrid vehicle (1) is provided. The hybrid vehicle includes an electric motor (13) that drives the vehicle to travel, a generator (12) that supplies power to the electric motor, and an engine (11) that drives the generator. The method includes calculating an amount or factor of change in target driving force (Fd) for the vehicle, setting a change rate (NRu, NRd) of a rotational speed of the engine in accordance with the amount or factor of change in the target driving force, and controlling the rotational speed of the engine on the basis of the change rate of the rotational speed of the engine.

Abstract: A control method for a hybrid vehicle is provided. The hybrid vehicle includes an electric motor (13) that drives the vehicle to travel, a generator (12) that supplies power to the electric motor (13), and an engine (11) that drives the generator (12). The control method includes: when bringing the electric motor (13) into a regenerative state, operating the generator to drive the engine (11) in a state in which fuel supply to the engine (11) is cut, thereby executing, in accordance with required deceleration, the motoring control for consuming the output power of the electric motor (13); and when increasing the rotational speed of the engine (11) due to an increase in the required deceleration upon execution of the motoring control, setting the rotational speed of the engine (11) such that the change rate of the rotational speed of the engine (11) increases as the consumed power by the motoring control increases.

Abstract: A control method for a hybrid vehicle includes a generator and an electric motor, the generator being configured to charge a battery by use of power of an engine, the electric motor being configured to drive driving wheels by electric power of the battery. The control method having driving the engine at a first rotation speed when a charging amount of the battery decreases to a first charging threshold; changing the engine to driving at a second rotation speed larger than the first rotation speed when the engine is driven at the first rotation speed and the charging amount decreases to a second charging threshold smaller than the first charging threshold; and continuing driving of the engine until the charging amount becomes equal to or more than a charging end threshold larger than the first charging threshold.

Abstract: A control method for a hybrid vehicle (1) is provided. The hybrid vehicle includes an electric motor (13) that drives the vehicle to travel, a generator (12) that supplies power to the electric motor, and an engine (11) that drives the generator. The control method includes storing the timing at which an amount or factor of change in target driving force (Fd) for the vehicle becomes a predetermined threshold or more, calculating an estimated trajectory of the rotational speed of the engine in accordance with the amount or factor of change in the target driving force, and when an increase request for power generation is issued to the engine at different timing than the timing, controlling the rotational speed of the engine on the basis of the calculated estimated trajectory.

Abstract: A control method for a hybrid vehicle is provided. The hybrid vehicle includes an electric motor (13) that drives the vehicle to travel, a generator (12) that supplies power to the electric motor (13), and an engine (11) that drives the generator (12). The control method includes: when bringing the electric motor (13) into a regenerative state, operating the generator to drive the engine (11) in a state in which fuel supply to the engine (11) is cut, thereby executing, in accordance with required deceleration, the motoring control for consuming the output power of the electric motor (13); and when the required deceleration decreases and driving of the engine (11) by the generator (12) is requested upon execution of the motoring control, imposing a restriction on a change in the rotational speed of the engine.

Abstract: A control method for a hybrid vehicle is provided. The hybrid vehicle includes an electric motor (13) that drives the vehicle to travel, a generator (12) that supplies power to the electric motor (13), and an engine (11) that drives the generator (12). The control method includes: when bringing the electric motor (13) into a regenerative state, operating the generator to drive the engine (11) in a state in which fuel supply to the engine (11) is cut, thereby executing, in accordance with required deceleration, the motoring control for consuming the output power of the electric motor (13); and when increasing the rotational speed of the engine (11) due to an increase in the required deceleration upon execution of the motoring control, setting the rotational speed of the engine (11) such that the change rate of the rotational speed of the engine (11) increases as the consumed power by the motoring control increases.

Abstract: A control method for a hybrid vehicle is provided. The hybrid vehicle includes an electric motor (13) that drives the vehicle to travel, a generator (12) that supplies power to the electric motor (13), and an engine (11) that drives the generator (12). The control method includes: when bringing the electric motor (13) into a regenerative state, operating the generator to drive the engine (11) in a state in which fuel supply to the engine (11) is cut, thereby executing, in accordance with required deceleration, the motoring control for consuming the output power of the electric motor (13); and when the required deceleration decreases and driving of the engine (11) by the generator (12) is requested upon execution of the motoring control, imposing a restriction on a change in the rotational speed of the engine.

Abstract: A control method for a hybrid vehicle (1) is provided. The hybrid vehicle includes an electric motor (13) that drives the vehicle to travel, a generator (12) that supplies power to the electric motor, and an engine (11) that drives the generator. The control method includes storing the timing at which an amount or factor of change in target driving force (Fd) for the vehicle becomes a predetermined threshold or more, calculating an estimated trajectory of the rotational speed of the engine in accordance with the amount or factor of change in the target driving force, and when an increase request for power generation is issued to the engine at different timing than the timing, controlling the rotational speed of the engine on the basis of the calculated estimated trajectory.

Abstract: A control method for a hybrid vehicle includes a generator and an electric motor, the generator being configured to charge a battery by use of power of an engine, the electric motor being configured to drive driving wheels by electric power of the battery. The control method having driving the engine at a first rotation speed when a charging amount of the battery decreases to a first charging threshold; changing the engine to driving at a second rotation speed larger than the first rotation speed when the engine is driven at the first rotation speed and the charging amount decreases to a second charging threshold smaller than the first charging threshold; and continuing driving of the engine until the charging amount becomes equal to or more than a charging end threshold larger than the first charging threshold.

Abstract: A method for controlling a hybrid vehicle (1) is provided. The hybrid vehicle includes an electric motor (13) that drives the vehicle to travel, a generator (12) that supplies power to the electric motor, and an engine (11) that drives the generator. The method includes calculating an amount or factor of change in target driving force (Fd) for the vehicle, setting a change rate (NRu, NRd) of a rotational speed of the engine in accordance with the amount or factor of change in the target driving force, and controlling the rotational speed of the engine on the basis of the change rate of the rotational speed of the engine.

Abstract: A hybrid vehicle control device for controlling a hybrid vehicle with an engine and an electric motor as drive sources of the vehicle includes a high-load road travel determination unit configured to determine whether or not the vehicle is traveling on a high running resistance road surface on which a predetermined vehicle acceleration is unobtainable only by an output of the engine, and a motor output setting unit configured to set an output of the electric motor. If the vehicle is determined to be traveling on the high running resistance road surface by the high-load road travel determination unit, the motor output setting unit limits the output of the electric motor when a vehicle speed reaches a predetermined vehicle speed.

Abstract: A hybrid vehicle control device for controlling a hybrid vehicle with an engine and an electric motor as drive sources of the vehicle includes a high-load road travel determination unit configured to determine whether or not the vehicle is traveling on a high running resistance road surface on which a predetermined vehicle acceleration is unobtainable only by an output of the engine, and a motor output setting unit configured to set an output of the electric motor. If the vehicle is determined to be traveling on the high running resistance road surface by the high-load road travel determination unit, the motor output setting unit limits the output of the electric motor when a vehicle speed reaches a predetermined vehicle speed.

Abstract: A vehicle control device includes a drive source controller configured to control a drive source on the basis of a creep drive force set so that a vehicle does not slip down when being stopped on a gradient road, and a braking force calculator configured to calculate a braking force generated on the basis of a braking operation of a driver. The drive source controller reduces a drive force generated by the drive source when the braking force is larger than the creep drive force when the vehicle is stopped. The creep drive force is a force not smaller than a force balanced with a force acting in a slip-down direction of the vehicle at a minimum gradient at which a hill hold function is activated.

Abstract: A vehicle control device includes a drive source controller configured to control a drive source on the basis of a creep drive force set so that a vehicle does not slip down when being stopped on a gradient road, and a braking force calculator configured to calculate a braking force generated on the basis of a braking operation of a driver. The drive source controller reduces a drive force generated by the drive source when the braking force is larger than the creep drive force when the vehicle is stopped. The creep drive force is a force not smaller than a force balanced with a force acting in a slip-down direction of the vehicle at a minimum gradient at which a hill hold function is activated.