Hybrid Working Vehicle

摘要

An object of the present invention is to provide a hybrid working vehicle that enables enhancing efficiency of an engine. A hybrid control device (35) according to the present invention includes a required power arithmetic unit (35A) that operates power required for operation of the vehicle, specified rotational speed setting equipment (35B1) that sets first rotational speed and second rotational speed which specify an operating range of the engine (12) according to required power operated by the required power arithmetic unit (35A), variable speed control equipment (35B2) that variably controls rotational speed of the engine (12) according to required power operated by the required power arithmetic unit (35A1) and electrical storage device electric power control equipment (35C1) that executes control over supplying electric power according to a deficit of power of the engine (12) in an electrical storage device (29) for required power operated by the required power arithmetic unit (35A) to an electric motor (26) when rotational speed of the engine (12) variably controlled by the variable speed control equipment (35B2) is first rotational speed.

主权项

1. A hybrid working vehicle, comprising:
an engine; an electric motor operated by electric power; a traveling section driven by the electric motor; an electrical storage device that stores electric power supplied to the electric motor; and a hybrid control device that controls a hybrid system using the engine and the electric motor for a power source, wherein the hybrid control device includes:
a required power arithmetic unit that operates power required for operation of the vehicle;specified rotational speed setting equipment that sets first rotational speed and second rotational speed that specify an operating range of the engine according to power operated by the required power arithmetic unit;variable speed control equipment that variably controls rotational speed of the engine between the first rotational speed and the second rotational speed according to power operated by the required power arithmetic unit; andelectrical storage device electric power control equipment that executes control over supplying electric power according to a deficit of power of the engine in the electrical storage device for power operated by the required power arithmetic unit to the electric motor when rotational speed of the engine variably controlled by the variable speed control equipment is the first rotational speed.