CONTROL DEVICE OF HYBRID VEHICLE

摘要

A control device of a vehicle enables an engine to be operated at an operating point with a good fuel consumption efficiency, to perform power generation, without causing a sense of incongruity about noise or vibrations to a driver. With the control device, the engine is operated so that generated power of a generator increases in response to electric power required of the vehicle. Thus, the engine can be operated at an operating point with a satisfactory fuel consumption efficiency. When in an acceleration state, the engine is operated so that the increase amount of generated power is set to be larger than when in a deceleration state. When in the deceleration state, the engine is operated so that an increase in generated power, is suppressed and an increase in noise is curbed.

主权项

1. A control device of a hybrid vehicle including
a travel motor for transmitting a driving force to driving wheels, a battery for supplying electric power to the travel motor, and a generator driven by an operation of an engine for generating required electric power including at least electric power for supply to the battery, the control device, comprising: a fuel efficiency point deriving portion that finds an operating point with a satisfactory fuel consumption efficiency based on a rotational speed and a torque of the engine; a required torque detection portion that detects a torque required of the hybrid vehicle to detect an operating state of the hybrid vehicle and a power generation control portion that operates the engine so as to increase generated power in response to the required electric power, thereby operating the engine based on the operating point found by the fuel efficiency point deriving portion, to control power generation of the generator, wherein if the operating of the vehicle detected by the required torque detection portion to be an acceleration state, the power generation control portion sets an increase amount of the generated power to be larger than if the operating state of the vehicle is detected to be a deceleration state.