Auxiliary power unit having electric controlled clutch applied for series type mixed power

Abstract

The present invention is one auxiliary power unit (APU) with electrically controlled clutch for serially connected mixed power system, and relates to hardware composition, mechanical connection, clutch driving of APU. The APU includes an engine, a generator, a clutch between the engine and the generator, a solenoid valve for controlling the clutch, an electronic control unit a clutch position sensor. The mechanical connection structure includes engine flywheel casing, clutch casing, engine casing, engine flywheel, clutch-membrane spring assembly, clutch friction plate assembly, spline shaft and generator input shaft connected successively. The present invention may be used in improving engine starting performance, providing reliable platform for frequent starting-stopping of the engine and lowering power consumption.

Description

technical field [0001] An auxiliary power unit with an electronically controlled clutch applied to a series hybrid, is a series hybrid auxiliary power unit (APU) using an electronically controlled clutch, involving the hardware composition, mechanical connection, and clutch drive of the APU The invention belongs to the technical field of a hybrid power system device. Background technique [0002] The hybrid power system is an important technical means to solve the energy bottleneck and exhaust pollution of automobiles. It can be divided into two basic types: series and parallel, such as figure 1 shown. The serial structure is suitable for frequent starting and stopping, acceleration and low-speed working conditions common in urban areas, and is often used in city buses; the parallel structure is more suitable for high-speed driving outside the city. In terms of structure, the main difference between the two is: there is no direct mechanical connection between the engine in...

AI Technical Summary

Problems solved by technology

However, at idle speed, the engine drives a large-mass generator rotor, which will cause a certain power loss.

[0006] 3) Due to the addition of the generator rotor, the impact of the starting process increases, and the APU control strategy cannot start and stop the engine more often, making it impossible for some engines to stop, thus increasing the idle time and energy consumption

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