The hybrid vehicle is a new type of green and energy efficient vehicle. Hydraulic accumulator and variable pump/motor make up the break energy regeneration utilization system, which is the core of hydraulic auxiliary driving unit. The hybrid drive system is composed of hydraulic auxiliary driving unit and the original vehicle drive system. As it relates to the recovery of the braking energy and...

Automobiles have an influence on the global environment that cannot be disregarded, not only through air pollution in cities but also through large carbon dioxide emission that leads to global warming. A hybrid electric vehicle combining a gasoline engine and an electric motor has proved to be an effective means to solve these problems. Electrical energy flow of the vehicle is controlled with i...

The aim of this work was to develop the design a direct liquid cooling system for battery pack high-performance plug-in hybrid vehicle. is an innovative type, with power busbars and poles lithium cells. In order obtain preliminary information dimensioning verification system, simulation model whole vehicle its powertrain developed. way, current profiles which storage will be subjected can estim...

This paper presents a hydraulic hybrid vehicle drive train to improve the fuel efficiency of a passenger car. The developed hydro-mechanical drive train enables independent control of the torque at each wheel. The motivation for developing this drive train is a hydraulic hybrid vehicle test bed for the Center for Compact and Efficient Fluid Power at the University of Minnesota. The hydro-mechan...

Living in a world where environment protection and energy conservation are the first worries, the development of hybrid vehicle seems to be an accelerated pace. There for, recent efforts are directed toward developing an improved propulsion system. One of the most valuable solutions is the starter alternators [19]. This paper presents an advanced development of a switched reluctance starter-alt...

An approach to control a hydrostatic dynamometer for the Hardware-In-the-Loop (HIL) testing of hybrid vehicles has been developed and experimentally tested. The hydrostatic dynamometer used, which is capable of regeneration, was specifically designed and built in-house to evaluate the fuel economy and control strategy of a hydraulic hybrid vehicle. The control challenge comes from the inertia o...

In order to remain on the forefront of driving simulation technology, it is necessary to continually upgrade and expand the capabilities of the NADS. One extension that is suggested by recent trends in the automotive marketplace is the ability to simulate hybrid electric vehicles. Support of hybrid electric vehicles by the NADS is motivated by the engineering and human factors challenges of des...

In this paper the Hybrid Vehicle Routing Problem (HVRP) is introduced and formalized. This problem is an extension of the classical VRP in which vehicles can work both electrically and with traditional fuel. The vehicle may change propulsion mode at any point of time. The unitary travel cost is much lower for distances covered in the electric mode. An electric battery has a limited capacity and...

Policymakers, consumers and manufacturers are all agreed – the auto industry needs to adopt electrification to address climate change and dwindling natural resources – yet we still see very few hybrid and electric vehicles on the road today. Given the will is there, why the lack of adoption? In reality the main reason is not the technology, but rather the cost of developing the technology in th...