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In this paper an Aircraft power generation topology is proposed for a More Electric Engine. There two generators are attached to the engine, a startergenerator on the high pressure- and a generator on the low pressure shaft. Both electric outputs are connected in parallel and feed together one 270 VDC power system of the airplane. The aim is to control the power of the two generators. Therefore several...
This paper describes the gear-shift schedules for the Automated Mechanical Transmission(AMT) utilized in the parallel hybrid vehicle, which is equipped with an Integrated Starter Generator (ISG). The effects of the battery's state of charge (SOC) and ISG's performance on the gear shift schedules have been investigated. Both the power gear-shift, schedule in which the ISG provides the peak torque all...
Three different strategies based on a theoretical model were used to simulate engine start process respectively, start in constant speed without compensation, start in constant speed with compensation, normal start. Predication results are presented here. Bench tests were also carried out, which are related to the three control strategies. It is found that the start in constant speed with compensation,...
According to the design requirements, the powertrain dynamic simulation model of an integrated starter/generator (ISG) hybrid electric vehicle (HEV) was established using Simulink. The parallel electric assist control strategy (PEACS) was researched and designed in this paper. The analysis of dynamics performance and fuel economy of the model was carried out under the FTP drive cycle, which can provide...
The free-piston engine system uses a linear motion of the piston. And the free-piston engine system can guarantee a high efficiency and reliability in the energy conversion process because of the absence of the mechanical motion conversion devices like a crankshaft, a connecting rod, etc. The mover of linear generator move using electric force in the starting mode, because free-piston engine can not...
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