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Steady State and Transient Efficiencies of a Four Cylinder Direct Injection Diesel Engine For Implementation in a Hybrid Electric Vehicle

Van Horn, Charles
http://rave.ohiolink.edu/etdc/view?acc_num=akron1154354134

Abstract Details

2006, Master of Science, University of Akron, Mechanical Engineering.
The efficiencies of a four cylinder direct injection diesel engine have been investigated for the implementation in a hybrid electric vehicle (HEV). The engine was cycled through various operating points depending on the power and torque requirements for the HEV. The selected engine for the HEV is a 2005 Volkswagen 1.9L diesel engine. The 2005 Volkswagen 1.9L diesel engine was tested to develop the steady-state engine efficiencies and to evaluate the transient effects on these efficiencies. The peak torque and power curves were developed using a water brake dynamometer. Once these curves were obtained steady-state testing at various engine speeds and powers was conducted to determine engine efficiencies. Transient operation of the engine was also explored using partial throttle and variable throttle testing. The transient efficiency was compared to the steady-state efficiencies and showed a decrease from the steady-state values. Changes in engine efficiency and how it impacts vehicle fuel economy for steady speeds was also investigated. From the steady-state and transient testing suggested operating points for the engine implementation in the series-parallel HEV developed by The University of Akron were made. The steady-state efficiency data is useful for the determination of operation points for series, parallel, and spilt hybrid modes. Transient efficiencies behavior is useful during acceleration of the vehicle at both high and low speeds, as well as the transition between hybrid operating modes. Engine operating points for other applications may also be derived from this data.
Scott Sawyer (Advisor)
87 p.
ENGINE; throttle; engine speeds; RPM; torque; DIESEL; HP

Recommended Citations

Citations

  • Van Horn, C. (2006). Steady State and Transient Efficiencies of a Four Cylinder Direct Injection Diesel Engine For Implementation in a Hybrid Electric Vehicle [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1154354134

    APA Style (7th edition)

  • Van Horn, Charles. Steady State and Transient Efficiencies of a Four Cylinder Direct Injection Diesel Engine For Implementation in a Hybrid Electric Vehicle. 2006. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1154354134.

    MLA Style (8th edition)

  • Van Horn, Charles. "Steady State and Transient Efficiencies of a Four Cylinder Direct Injection Diesel Engine For Implementation in a Hybrid Electric Vehicle." Master's thesis, University of Akron, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=akron1154354134

    Chicago Manual of Style (17th edition)

akron1154354134
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© 2006, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.