Distributed differential coupling combined power system

Abstract

A combined power system includes a rotational power source such as an internal combustion engine, the output shaft of which is arranged to drive a front section load and which is also coupled to the input shaft of an electromagnetic coupling device to drive a rear section load. The electromagnetic coupling device is controlled by an operating device to generate motor driving functions, when an input current is applied or to generate variable speed coupling functions through an output current when the electromagnetic coupling device is employed as a generator. The engine can be operated at constant speed or at a partially adjustable speed to maximize engine efficiency and reduce pollution, with one part of the differential speed output power generated throughout the differential mixing drive device being used for driving the load while the remainder of the power is converted through the generator function of the electromagnetic coupling device to charge the battery and thereby increase energy efficiency.

Description

BACKGROUND OF THE INVENTION[0001]In recent years, energy and noise pollution problems have become more and more serious. A good solution to these problems would be to use electrical power driven vehicles, but development of electrical power driven vehicles has up to now been limited by the capacity of the batteries to achieve a larger moving range. Increasing the battery volume or quantity to increase the range will correspondingly increase the self-weight of the carrier, resulting in higher electrical energy consumption and does not meet economic requirements. Therefore, in the absence of a major breakthrough in solving the battery technical problems, a more practical driving method is to use combined driving structure designs. Current combined driving structure designs include:[0002](A) Series Combined Power Design: This design is the most typical structure for an electrically driven vehicle. In this design a generator is driven by the engine to generate electricity and charge the...

AI Technical Summary

Benefits of technology

[0006]The distributed differential coupling combined power distribution system of the invention may be used in driving vehicles, ships, flying machines or other mechanical, industrial, or processing equipment which require a rotational power source. The power source involves the rotational output shaft of a internal combustion engine for other rotational power sources), and is not only used to drive a front section load directly or through transmission devices such as transmission gears, belts, chains, or the couplers, but is also coupled with the input shaft of an electromagnetic coupling device to drive the rear section load. The electromagnetic coupling is a two-end structure and is respectively combined with a stator and rotor structure to be controlled by an operating device for generating motor driving functions when an input current is applied to the electromagnetic coupling device or for operating variable speed coupling functions through the output current when employed as a generator, or for use in starting the engine and as a power regeneration brake, particularly when the engine is the main transmission power source, to charge the battery through the difference between the speed of the rotational field generated by the stator and the speed of the rotor, the speed difference with the rear load section being thereby adjusted by controlling the charging current. The engine can be at a constant speed or at a speed which is partially adjustable to maintain a working speed having a higher operating efficiency and lower pollution, with a portion of the differential speed output power generated through the electromagnetic coupling device being used for driving the load while the remaining part of the power is converted through the generator function of the electromagnetic coupling device to charge the battery. The electromagnetic coupling thereby promotes engine efficiency during variable speed driving at low driving speeds while acquiring charging power for the battery and reducing pollution, and in addition to providing a variable speed coupling, the electromagnetic coupling can also be used as a driving motor to generate a rotational output for driving the load independently of or together with the engine.

Problems solved by technology

In recent years, energy and noise pollution problems have become more and more serious.

A good solution to these problems would be to use electrical power driven vehicles, but development of electrical power driven vehicles has up to now been limited by the capacity of the batteries to achieve a larger moving range.

Increasing the battery volume or quantity to increase the range will correspondingly increase the self-weight of the carrier, resulting in higher electrical energy consumption and does not meet economic requirements.

As the energy is converted several times, the overall efficiency of this design is low.

In general, it has a smaller system volume and saves the cost and space in comparison with other combined power systems.

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