Automatic clutch engagement control is essential for all kinds of vehicle power transmissions. The controllers transmissions may include model-based or model-free approaches and must provide high transmission efficiency, fast low jerk. Most automatic are using torque converters with efficiencies up to 96%. This paper presents the use fuzzy logic a dry in parallel hybrid electric vehicles. contr...

To understand the real world conditions of use of plug-in hybrid electric vehicles, the electrical energy consumption and gasoline energy consumption must be weighted according to how often a consumer will drive fueled by each energy source. To perform this weighting The Society of Automotive Engineers Hybrid Committee has codified the concept of the utility factor in SAE J2841 Utility Factor D...

In this paper, the development and optimization of Power Distribution Control Strategy (PDCS) have been performed for a Hybrid Energy Storage Systems (HESS) of a Series Hybrid Electric Bus (SHEB). A common PDCS is based on the use of Ultra-Capacitor (UC) pack. A new simple PDCS is developed as a battery based one. For the battery based PDCS, four parameters ar...

The paper studies a series-parallel hybrid powertrain configuration for the medium-duty plug-in hybrid trucks and Volt-like passenger cars. The series-parallel hybrid combines the features of the parallel hybrid and the series hybrid. Series-parallel hybrid powertrains with preand post-transmission configuration for the plug-in hybrid medium-duty trucks were modelled and compared with a convent...

This paper presents an engine-in-the-loop validation of a power management strategy for hybrid electric powertrains that splits the power demanded by driver between the engine and battery depending on the frequency content. In particular, a series hybrid electric powertrain is considered where the engine is a real 6.4L diesel engine and the rest of the vehicle, including the battery, generator,...

Due to demand for decreasing CO2 emission and improving fuel-efficiency of vehicles, research and development of electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs) is being revitalized worldwide. In advance of widespread use of EVs and PHEVs, Europe, United States and Japan have cooperated and worked on the international standardization of the vehicle charging system. We have ...

This paper presents a design method of a torque control strategy for parallel hybrid electric vehicles (PHEV) by using fuzzy logic. Taking the driver command, the state of charge (SOC) of the battery, and the motor/generator speed as inputs, a fuzzy controller and relevant fuzzy rules have been developed to effectively determine the torque distribution between electric motor (EM) and internal c...

Along with the common goal of reducing fuel consumption for vehicles, the hybrid electric vehicle stands out as a mean for more fuel efficient driving. Besides the conventional combustion engine and fuel tank, the hybrid electric vehicle is also equipped with an electric motor and a battery for propulsion. Car manufacturers are presently working to provide the markets with the next step of this...

This paper presents an overview of the control and management requirements of high power lithiumbased batteries for electric and hybrid electric vehicle systems. Lithium based battery technologies offer performance advantages over traditional battery technologies at the cost of increased monitoring and controls overhead. The additional complexity of the hybrid drive system increases the managem...

In this chapter, Gravitational Search Algorithm (GSA) and Particle Swarm Optimization (PSO) technique were applied for intelligent allocation of energy to the Plug-in Hybrid Electric Vehicles (PHEVs). Considering constraints such as energy price, remaining battery capacity, and remaining charging time, they optimized the State-of-Charge (SoC), a key performance indicator in hybrid electric vehi...