Terms:
SAE International Journal of Alternative Powertrains
AND
8
AND
1
The SAE MOBILUS platform will continue to be accessible and populated with high quality technical content during the coronavirus (COVID-19) pandemic. x
Show Only

Collections

File Formats

Content Types

Dates

Sectors

Topics

Authors

Publishers

Affiliations

Open Access

An Energy Management Strategy for Through-the-Road Type Plug-in Hybrid Electric Vehicles

SAE International Journal of Alternative Powertrains

National Taiwan University, Taiwan-Ming-Yen Chen, Kang Yang, Yun-Zhong Sun, Jung-Ho Cheng
  • Journal Article
  • 08-08-01-0004
Published 2019-09-19 by SAE International in United States
This article proposes an energy management strategy for a through-the-road (TTR) plug-in hybrid electric vehicle (PHEV) to achieve efficient fuel consumption performance. The target hybrid powertrain includes an electric traction motor, an integrated starter/generator (ISG), and a gasoline internal combustion engine (ICE) in the front axle and another electric motor in the rear axle. The energy management strategy is organized into six functional modules. The power mode is determined by the driver’s pedal demand, vehicle states, and the characteristics of the related power units to increase the overall system efficiency. The energy management strategy and the vehicle models are established in the Matlab/Simulink by using dSPACE Automotive Simulation Models (ASM) software. The proposed strategy is examined in terms of three test scenarios in the Model-in-the-Loop (MiL) simulations. The vehicle operates in the EV mode in the range from 40% to 70% battery state of charge (SOC) to improve the fuel consumption. The ICE is ignited to charge the battery if SOC is under 40%. In the acceleration simulation, the ICE involves in the power output…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Comparative Study of Different Air Supply Systems for Automotive Fuel Cell Applications

SAE International Journal of Alternative Powertrains

Continental Automotive GmbH, Germany-Florian Uhrig, Mario Schinnerl, Peter Haluska
OTH, Germany-Peter Kurzweil
  • Journal Article
  • 08-08-01-0002
Published 2019-05-10 by SAE International in United States
The dynamic and efficiency of automotive fuel cell drives is significantly influenced by air supply system. Different air compression architectures use electric compressor (EC), electric turbocharger (ETC), or a serial booster (SB) consisting of turbocharger and electric compressor. These three variants of air compression systems were modeled using a map approach and added to a 0D fuel cell air supply model. The characteristic maps of the turbomachinery were measured on the test bench under fuel cell conditions. Subsequently, the calculated isentropic efficiencies were corrected with respect to heat transfer phenomena occurring during the measurement. Moreover, a scaling method for the maps of the turbomachinery is explained. The initial simulation of the air compression systems with equal diameters for the turbomachinery showed no difference in the mechanical power demand. Therefore, the particle swarm algorithm (PSA) was applied to optimize the turbomachinery maps of EC, ETC, and SB with the scaling method. The PSA reduces the mechanical power demand of EC by 17%, of ETC by 18%, and of SB by 27%. This leads to the lowest…
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Innovative Dedicated Hybrid Transmission Concepts in the Next Generation of Hybrid Powertrains

SAE International Journal of Alternative Powertrains

Technische Universität Carolo-Wilhelmina zu Braunschweig, Germany-Haijun Chen, Lin Li, Andreas Lange, Ferit Küçükay
  • Journal Article
  • 08-08-01-0005
Published 2019-09-20 by SAE International in United States
Due to the advantages of hybrid vehicles in comparison with pure electric vehicles, Hybrid Electric Vehicle (HEV)/Plug-in HEV (PHEV) no undoubtedly becomes the reasonable and practical solution in the development of vehicle electrification at the moment. Meanwhile, Dedicated Hybrid Transmission (DHT), as the especially designed hybrid transmission for HEV/PHEV, represents the development direction of hybrid vehicles. But in the market, the well-known DHT concepts are all protected by patents by large Original Equipment Manufacturers (OEMs). How to break the patents and more importantly develop the innovative DHT concepts in the next generation is of vital importance in the development of HEV/PHEV. In this article, firstly, the features and comparisons of different well-known DHT concepts are discussed and analyzed. The mechanical and electrical complexity are introduced to essentially analyze the advantage and disadvantage of different kinds of DHT concepts. Based on the analysis, the possibilities of different DHT concepts in the next generation are further analyzed and demonstrated. The innovative DHT are derived from the analysis. In comparison with DHT in the market, the innovative DHT…
This content contains downloadable datasets
Annotation ability available
Open Access

Modeling and Optimal Design of All-Wheel-Drive Hybrid Light Trucks

SAE International Journal of Alternative Powertrains

Ford Motor Company, USA-Xiaowu Zhang
Robert Bosch LLC, USA-Nikhil Ravi
  • Journal Article
  • 08-08-01-0003
Published 2019-06-06 by SAE International in United States
Fuel economy and performance are both important in the design of hybrid pickup trucks. All-wheel drive is essential to ensure superior performance compared to two-wheel-drive designs. In this article, as a comprehensive extension work to the article published in ASME Dynamic Systems and Control Conference [1] on all-wheel-drive (AWD) hybrid truck, we investigate the modeling, design, and control problem of AWD hybrid vehicles and develop a methodology to identify optimal designs. This methodology 1) formulates an automated modeling process, 2) searches exhaustively through all possible AWD designs, and 3) employs a near-optimal energy management strategy, to obtain a family of designs with superior performance and fuel economy. A design case study for a hybrid Ford F-150 is conducted, to showcase this design process.
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Selection of Reference Flux Linkage for Direct Torque Control Based Induction Motor Drive in Electric Vehicle Applications

SAE International Journal of Alternative Powertrains

Indian Institute of Technology Guwahati, India-Amit Kumar Singh, Upendra Reddy, Kashyap Kumar Prabhakar, Praveen Kumar
  • Journal Article
  • 08-08-01-0001
Published 2019-04-08 by SAE International in United States
The surge in economic activities, in the developing nations, has resulted in rapid expansion of urban centres. This expansion of cities has caused a rapid increase in vehicular traffic, which in turn has caused deterioration of air quality. To overcome the problem of unprecedented air pollution, the governments worldwide have framed policies for faster adoption of electric vehicles. One of the major challenges faced is the development of low- cost drive for these vehicles and keeping the imports to a minimum. As a result of this, the trend is to move away from the permanent magnet-based motor technology and to use induction motor-based drivetrain. For the induction motors to be successful in electric vehicle drivetrain application, it is important to have a robust speed control algorithm. This work aims at adapting a direct torque control technique for induction motor’s speed control. The work addresses the impact of reference flux linkage on the operation of an induction motor for direct torque control over a wide range of operation. A Finite Element Analysis based induction motor model…
This content contains downloadable datasets
Annotation ability available