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A Novel, Elastically-Based, Regenerative Brake and Launch Assist Mechanism

Nieman, Joshua E.
http://rave.ohiolink.edu/etdc/view?acc_num=dayton1399048279

Abstract Details

2014, Master of Science (M.S.), University of Dayton, Mechanical Engineering.
This thesis project presents the development of a regenerative brake and launch assist (RBLA) mechanism that stores energy in an elastic medium. Automotive regenerative braking systems harness kinetic energy while a vehicle decelerates, and subsequently uses that stored energy to assist propulsion. Commercially available hybrid vehicles use generators, batteries, and motors to electrically implement regenerative braking and increase overall vehicle efficiency. With the intent of applying regenerative braking technology to conventional automobiles equipped having only an internal combustion engine, a spring-based mechanical device is proposed. This RBLA concept implements clutches, gears, a ratchet and a spring. The mechanism captures energy from, and releases energy to, an additional shaft allowing the axle to rotate in one direction. Governing equations were formulated and validated by a dynamic simulation. In creating the detailed design, an optimization determined ideal spring and mechanism dimensions. A physical prototype was designed and fabricated to demonstrate the concept. A model of the proposed spring-based RBLA has been found to appreciably increase the urban fuel efficiency for an average sedan.
David Myszka (Advisor)
Andrew Murray (Committee Co-Chair)
David Perkins (Committee Member)
67 p.
Mechanical Engineering
regenerative braking; novel devices; energy storage; springs;

Recommended Citations

Citations

  • Nieman, J. E. (2014). A Novel, Elastically-Based, Regenerative Brake and Launch Assist Mechanism [Master's thesis, University of Dayton]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1399048279

    APA Style (7th edition)

  • Nieman, Joshua. A Novel, Elastically-Based, Regenerative Brake and Launch Assist Mechanism . 2014. University of Dayton, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=dayton1399048279.

    MLA Style (8th edition)

  • Nieman, Joshua. "A Novel, Elastically-Based, Regenerative Brake and Launch Assist Mechanism ." Master's thesis, University of Dayton, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1399048279

    Chicago Manual of Style (17th edition)

dayton1399048279
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© 2014, all rights reserved.
This open access ETD is published by University of Dayton and OhioLINK.