Power system, transportation apparatus, and power transmission method

Abstract

The invention provides a power system, a transportation apparatus and a power transmission method. The power system is provided with a generator driven by the driving force of an internal-combustion engine, and can perform appropriately the charge or discharge for two accumulating electricity devices from which the characteristic differ each other. A control device (8) of the power system (1) has a function of power generation control processing and power supply control processing; in the power generation control processing, the control device controls an electric power transmission circuit unit (7), so that the a second storage device (6) can be charged at least by power generated by a generator (4); in the power supply control processing, charging rate of the second storage device (6) is reduced to a regulated threshold value and the power transmission circuit unit (7) can be controlled, so that only a first storage device (5) works as an actuator (3) to supply power in the regulated time.

Description

technical field [0001] The present invention relates to a power system including an internal combustion engine and an actuator as a power source for driving a passive load, and two power storage devices as a power source for the actuator. Background technique [0002] Conventionally, as such a power system, for example, the power system shown in Patent Documents 1 and 2 has been known. Patent Document 1 describes a technology in which, in a hybrid vehicle equipped with two power storage devices, in order to enable EV running in a wide range of running conditions, a technology for driving a motor generator when the engine is started is provided. A mode in which the voltage of the power storage device on the low-capacity side is boosted so that the voltage becomes the same voltage as the voltage of the power storage device on the high-capacity side, and the power-storage mode so that the voltage for driving the motor generator is higher than that on the high-capacity side A m...

AI Technical Summary

Problems solved by technology

[0010] However, if the charge and discharge control of each power storage device is not performed in a manner that properly considers the characteristics of each power storage device, the stored energy of any one of the power storage devices may be depleted prematurely, or the deterioration of any one of the power storage devices may be premature. bad progress

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