Abstract: A hybrid vehicle includes an engine for producing propulsive forces, an electric motor for selectively generating assistive drive forces in addition to the propulsive forces and generating electric energy converted from the propulsive forces, and an energy storage unit for selectively supplying electric energy to the electric motor and storing electric energy converted by the electric motor.

Abstract: A hybrid vehicle includes an engine for producing propulsive forces, an electric motor for selectively generating assistive drive forces in addition to the propulsive forces and generating electric energy converted from the propulsive forces, and an energy storage unit for selectively supplying electric energy to the electric motor and storing electric energy converted by the electric motor.

Abstract: An electric power generating apparatus having an electric generator is mounted on a hybrid vehicle which has a propulsive electric motor powered by a battery and an internal combustion engine for actuating the electric generator to generate an electric power output to charge the battery. A goodness-of-fit calculator and a generator operational amount calculator determine an operational amount for the electric generator based on a membership function and fuzzy rules stored in a fuzzy reasoning memory according to fuzzy reasoning from vehicle operating conditions including a charged and discharged condition of the battery and a vehicle speed of the hybrid vehicle, detected by operating condition detectors.

Abstract: An electric power generating apparatus is mounted on a vehicle which has a propulsive electric motor powered by a battery, and has an electric generator and an internal combustion engine for actuating the electric generator to charge the battery depending on a charged/discharged state of the battery. A first operation controller operates the internal combustion engine to enable the electric generator to charge the battery if the amount of electric energy stored in the battery is smaller than a predetermined value or the time-dependent rate of increase of an amount of electric energy discharged from the battery is greater than a predetermined level. A second operation controller operates the internal combustion engine to purge a canister if the charged/discharged state of the battery fails to satisfy a condition for the first operation controller to operate the internal combustion engine and if the amount of a purged gas adsorbed in the canister is greater than a predetermined amount.

Abstract: The opening of the intake air control valve of an engine which actuates a generator on a hybrid vehicle is basically controlled by an intake air control valve control assembly to cause the engine to produce a power output corresponding to a target generated output which is determined by a target generated output setting assembly based on an operating condition of the hybrid vehicle. When regenerative braking of a propulsive electric motor is detected by a regenerative braking detector, the opening of the intake air control valve is corrected in a direction to decrease. Even when the load on the engine drops sharply or is greatly reduced by regenerative braking of the propulsive electric motor, the engine is prevented from racing, and from discharging unwanted exhaust emissions and also from suffering undue vibrations.