Midsize and SUV vehicle simulation results for plug-in hev component requirements (original) (raw)

VEHICLE SIMULATION RESULTS FOR PLUG-IN HEV BATTERY REQUIREMENTS October 1, 2006

Comparison of Powertrain Configuration for Plug-in HEVs from a Fuel Economy Perspective

SAE International Journal of Engines, 2008

With the success of hybrid electric vehicles (HEVs) and the still uncertain long-term solution for vehicle transportation, Plug-in Hybrid Electric Vehicles (PHEV) appear to be a viable short-term solution and are of increasing interest to car manufacturers. Like HEVs, PHEVs offer two power sources that are able to independently propel the vehicle. They also offer additional electrical energy onboard. In addition to choices about the size of components for PHEVs, choices about powertrain configuration must be made. In this paper, we consider three potential architectures for PHEVs for 10-and 40-mi All Electric Range (AER) and define the components and their respective sizes to meet the same set of performance requirements. The vehicle and component efficiencies in electric-only and charge-sustaining modes will be assessed.

Comparison of Powertrain Configuration Options for Plug-in HEVs from a Fuel Economy Perspective

The first commercially available plug-in hybrid electric vehicle (PHEV), the General Motors (GM) Volt, was introduced into the market in mid-December 2010. The Volt uses a series-split powertrain architecture, which provides benefits over the series architecture that typically has been considered for use in electric-range extended vehicles (EREVs). A specialized EREV powertrain, called the Voltec, drives the Volt through its entire range of speed and acceleration with battery power alone and within the limit of battery energy, thereby displacing more fuel with electricity than a PHEV, which characteristically blends electric and engine power together during driving. This paper assesses the benefits and drawbacks of these two different plug-in hybrid electric architectures (series versus series-split) by comparing component sizes, system efficiency, and fuel consumption over urban and highway drive cycles. Based on dynamic models, a detailed component control algorithm was developed for each PHEV. In particular, for the GM Voltec, a control algorithm was proposed for both electric machines to achieve optimal engine operation. The powertrain components were sized to meet all-electric-range, performance, and grade capacity requirements. This paper presents and compares the impact of these two different powertrain configurations on component size and fuel consumption.

Research on PHEV Battery Requirements and Evaluation of Early Prototypes

Plug-in Hybrid Electric Vehicles (PHEVs) have the ability to drastically reduce petroleum use. The FreedomCAR Office of Vehicle Technology is developing a program to study the potential of the technology. The first step in the program is to define the requirements of PHEV components. Because the battery appears to be the main technical barrier, from both performance and cost perspectives, research has focused on that component. Working with FreedomCAR energy storage and vehicle experts, Argonne National Laboratory (Argonne) researchers have developed a process to define the requirements of energy storage systems for plug-in applications. This paper describes the impact of All Electric Range (AER), drive cycle, and control strategy on battery requirements. First, battery requirements are defined for several vehicle classes and AER by using a vehicle simulation tool. Then, a subset of the simulation is validated by using the Li-ion JohnsonControlSaft VL41M using battery Hardware-in-the-Loop (HIL). Finally, the simulated requirements, based on following the Urban Dynamometer Driving Schedule (UDDS), are compared with an aftermarket Toyota Prius tested on a dynamometer at Argonne's Advanced Powertrain Research Facility (APRF).

Life-Cycle Cost Sensitivity to Battery-Pack Voltage of an HEV

SAE Technical Paper Series, 2000

A detailed component performance, ratings, and cost study was conducted on series and parallel hybrid electric vehicle (HEV) configurations for several battery pack and main electric traction motor voltages while meeting stringent Partnership for a New Generation of Vehicles (PNGV) power delivery requirements.

Modeling and simulation of electric vehicles - The effect of different Li-ion battery technologies

Limited range is one of the main drawbacks of battery electric vehicles. Especially at low temperatures the range is reduced due to low battery capacity and power as well as additional energy demand for auxiliaries. In order to compare different battery technologies regarding their in-vehicle performance, a model based approach is chosen. Several battery technologies are modeled and implemented into a simulation environment for vehicle systems. In addition, varying test cases are defined to analyze the battery characteristics and impact on the vehicle performance. For example, simulation results show that the energy demand of the power train rises significantly in urban surroundings and low ambient temperature conditions. This is due to the fact that recuperation of brake energy is limited by the reduced battery power capability. Furthermore, the efficiency of the battery and the power train is analyzed regarding varying temperatures, battery sizes and driving cycles. Eventually, th...

DESIGN OF PLUG-IN HYBRID ELECTRIC VEHICLE

Plug-in Hybrid Electric Vehicles (PHEV) is a type of hybrid electric vehicle where some portion of the energy for propulsion of the vehicle comes from the electric grid. In modern PHEV, the performance difference between an electric vehicle mode, charge depleting mode and a charge sustaining vehicle mode is nearly imperceptible in performance to the driver. This allows a PHEV to use electric energy to displace petroleum as a transportation fuel, with benefits in terms of increased transportation energy efficiency, reduced carbon emissions, reduced criteria emissions, reduced fueling cost, improved consumer acceptance and improved transportation energy sector sustainability. 1. Introduction The personal transportation energy sector has been particularly resistant to diversification of its energy inputs toward more sustainable energy sources. In 2005, less than 1% of the 28 quads of energy in the US transportation energy sector came from renewable sources, primarily alcohol biofuels. The dearth of non-petroleum energy sources for transportation is due, in part, to technical challenges, consumer requirements and the high-cost infrastructure dedicated to conventional petroleum fuels forces that could move the personal transportation energy sector to diversify its energy inputs in the near future include increasing demand and relatively static supply for petroleum, criteria pollutant regulations, regulations regarding global climate change, fuel price instability, and consumer demand for protection against fuel shortages. Fueling transportation using the electricity from the electric grid allows the transportation energy sector to access the lower-cost, cleaner, and higher renewable fraction energy that is present on the electric grid. Battery electric vehicles store electrical energy from the grid electrochemically to provide the vehicle with its only source of energy. PHEV uses both electrochemical energy storage and a conventional fuel to overcome these weaknesses and to provide additional benefits to the consumer and society. 2. Literature Review To study the fuel economy of a Parallel Hybrid Electric Vehicle is investigated. A vehicle control algorithm which yields operating points where operational cost of Hybrid Electric Vehicle (HEV) is minimum [1]. HEV technology is an excellent way to reduce our petroleum consumption through efficiency improvements. HEV use energy storage technology to improve vehicle efficiency through engine downsizing and by recapturing energy normally lost during braking events. A typical HEV will reduce gasoline consumption by about 30% over a comparable conventional vehicle [2]. Plug-in Hybrid Electric Vehicle (PHEV) technology offers a possible approach to reducing life cycle emissions and dependency on oil as a transportation fuel via the use of large rechargeable storage batteries that enable electricity from the grid to provide a portion of the propulsion requirements of a passenger vehicle. For this study In contrast, a PHEV battery pack may contain 3–30 KWH and weigh 30–300 kg plus the additional vehicle structural weight required to carry these batteries [3]. Study HEV program consists of three core areas: Battery Thermal Management, Vehicle Systems Analysis, and Auxiliary Loads Reduction. The 21

A Comparative Fuel Analysis of a Novel HEV with Conventional Vehicle

2017 IEEE 85th Vehicular Technology Conference (VTC Spring), 2017

Improvements in fuel economy have always been a dominating driver of vehicle engineering. With some exceptions, benefits attained from hybrid powertrains to transient power delivery has not been the emphasis of research and development efforts. Developing cities around the world would realise significant benefits from improvements to fuel economy, which is outlined in this research by assessing the benefits of a novel HEV architecture. These benefits are compared to a conventional ICEpowered vehicle equivalent, which has an advantage in terms lower upfront costs. The commercial success of HEV implementation, therefore, is determined by its price comparison to conventional vehicles and payback over a number of years of use. This becomes especially important in regions of low-middle income, where the market is much more price-sensitive. The fuel economy of a conventional vehicle and mild hybrid electric vehicle are compared in this paper. This analysis includes vehicle modelling and simulation. Fuel economy is assessed and referenced with standard drive cycles provided by the U.S Environmental Protection Agency. Results demonstrate the benefits of a lower ongoing cost for the HEV architecture.

Analysis of hybrid electrical vehicles: Types, formulation and needs

INTERNATIONAL CONFERENCE ON TRENDS IN CHEMICAL ENGINEERING 2021 (ICoTRiCE2021)

Cleaner and more sustainable energy alternatives are needed as oil prices rise and environmental concerns grow. Transportation currently consumes a significant amount of energy and emits pollutants. This article examines hybrid vehicle development using a Power Split setup with an ICE and a battery. The efficiency of a HEV is evaluated using a battery with a greater amp-hour capacity. The adapter circuit is used in the advanced condition to lower the battery capacity. Various situations have been detected with various battery discharging and charging circuits. HEV are renowned for their capacity to match the capability of a normal car while significantly reducing fuel consumption and pollutants. The automotive industry is becoming increasingly interested in EVs and PHEVs. Thanks to developments in energy storage devices, power electronics adapters such as Direct current converters, DC to AC inverters, and battery power systems, electrical equipment, and efficient energy voltage control techniques. The commoditization of PHEVs and EVs in various applications e.g., heavy duty, light duty, and medium duty vehicles is now possible.. This paper focuses on current breakthroughs in EV and PEV that cover new powertrain technologies and overhead to the SOTA.

Midsize and SUV vehicle simulation results for plug-in hev component requirements (original) (raw)

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