The design of an engine-flywheel hybrid drive system for a passenger car

Schilke, Neil A.; DeHart, Arnold O.; Hewko, L. O.; Matthews, Charles C.; Pozniak, Donald J.; Rohde, S. M.

doi:10.4271/841306

Cited by 6 publications

(3 citation statements)

References 2 publications

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“…To avoid the use of multiple transmissions, 2-DoF FHV systems have been proposed [13][14][15][16][17][18][19]. The two-mode flywheel hybrid, introduced by General Motors (GM), includes five clutches and one CVT to implement a multi-mode 2-DoF FHV [13,14].…”

Section: Introductionmentioning

confidence: 99%

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Feasibility Analysis and Performance Evaluation of a Novel Power-Split Flywheel Hybrid Vehicle

2018

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Despite the advantages of flywheel energy storage, including low cost, a long life-cycle, and high reliability, the flywheel hybrid vehicle (FHV) has not yet been mass-produced because it usually uses two transmissions, one for the engine and the other for the flywheel, which leads to cost, packaging, and complexity concerns. In this paper, a novel power-split flywheel hybrid powertrain (PS-FHV) that uses only one transmission is proposed to mitigate these issues. The proposed PS-FHV includes one continuously variable transmission (CVT) and three planetary gear-sets integrated with a flywheel, to provide full hybrid functionality at any speed, which leads to high fuel economy and fast acceleration performance. To prove and verify the PS-FHV operation, the system was modeled and analyzed using a lever analogy to demonstrate that the system is capable of performing power distribution and regulation control, which are required for hybrid driving modes. Using the derived model, PS-FHV driving was simulated to assess the feasibility of the proposed system and estimate its performance. The simulation results confirm that the PS-FHV is a feasible system and that, compared to hybrid electric vehicles (HEVs), it provides comparable fuel economy and better acceleration performance.

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Section: Introductionmentioning

confidence: 99%

“…The two-mode flywheel hybrid, introduced by General Motors (GM), includes five clutches and one CVT to implement a multi-mode 2-DoF FHV [13,14]. The clutched flywheel transmission (CFT) is developed and added to the engine-CVT configuration [15].…”

Section: Introductionmentioning

confidence: 99%

Feasibility Analysis and Performance Evaluation of a Novel Power-Split Flywheel Hybrid Vehicle

2018

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“…al. presented a FWICEHV design by General Motors [14]. The FW was connected in parallel to the ICE using a v-belt CVT.…”

Section: History and Applicationsmentioning

confidence: 99%

Review of flywheel based internal combustion engine hybrid vehicles

Dhand

Pullen

2013

Int.J Automot. Technol.

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This is the unspecified version of the paper.This version of the publication may differ from the final published version. Permanent repository link AbstractHybrid vehicles of different configurations and utilizing different energy storage systems have existed in development for many decades and more recently in limited production. They can be grouped as parallel, series or complex hybrids. Another classification is micro, mild and full hybrids which makes the distinction on the basis of functionality. The common energy storage systems in hybrid vehicles are batteries, supercapacitors and high speed flywheels. This paper aims to review a specific type of hybrid vehicle which involves the internal combustion engine (ICE) as the prime mover and the high speed flywheel as an energy storage device. Such hybrids are now attracting considerable interest given their potential for low cost. It is hence timely to produce a review of research and development in this subject. The flywheel is coupled to the drive line with a continuous variable transmission (CVT). The CVT can be of various types such as electrical, hydraulic or mechanical but usually in this case it is a non-electrical one. Different configurations are possible and the paper provides a timeline of the development of such powertrains with various examples. These types of hybrid vehicles have existed as prototypes for many decades and the authors believe that their development has reached levels where they can be considered serious contenders for production vehicles.

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