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With the growing concerns on price fluctuation and depletion of petroleum resources and global warming, there is fast growing interest in hybrid electric vehicles (HEVs) globally. Thus, it is a pressing need for researchers to develop energy efficient devices for various kinds of HEVs, including micro, mild and full hybrids. In this paper, an emerging energy efficient technology will be investigated...
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...
Homogeneous charge compression ignition (HCCI) engines create a cleaner and more efficient power source for either stationary power generators or hybrid vehicles. Control of HCCI engine, however, is difficult since its ignition cannot be actuated directly. For the purpose of model-based analysis and controller design, a model for a single cylinder HCCI engine with electric mechanical valves (EMV)...
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 original free-swinging piston engine with the oscillating rotating generator distinguishes by its compactness, minimum frictional losses, full-balanced mechanical system, possibility of four-stroke operation of the engine, possibility of the multifuel operation of the engine, optimal magnetic circuit of the electrical generator, etc. Because the engine can optimally operate over whole range of...
In full hybrid electrical vehicles, two separate electric machines and two power inverters are required. One machine operates as a generator and the other works both as a generator and motor. The two electric machines are connected to an intelligent gearbox called planetary gear set together with engine. In this paper, a new machine - dual mechanical port (DMP) machine is proposed, which combines...
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