The Integrated Kinetic Energy Recoup Drive (i-KERD): An Optimized Powertrain for EVs, HEVs and FCEVs

In this paper, a particular form of flywheel hybrid powertrain, namely, the Integrated Kinetic Energy Recoup Drive (i-KERD) is fully explored and its applications for EVs, HEVs and FCEVs in recent years to show the energy-savings and performance enhancement potential of this innovative powertrain te...

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Main Authors: Min Yang, Tao Wang, Chunji Guo, Chris Ellis, Yuefeng Liao
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:World Electric Vehicle Journal
Subjects:
Online Access:https://www.mdpi.com/2032-6653/13/1/8
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author Min Yang
Tao Wang
Chunji Guo
Chris Ellis
Yuefeng Liao
author_facet Min Yang
Tao Wang
Chunji Guo
Chris Ellis
Yuefeng Liao
author_sort Min Yang
collection DOAJ
description In this paper, a particular form of flywheel hybrid powertrain, namely, the Integrated Kinetic Energy Recoup Drive (i-KERD) is fully explored and its applications for EVs, HEVs and FCEVs in recent years to show the energy-savings and performance enhancement potential of this innovative powertrain technology. It is shown that the i-KERD is a small highspeed flywheel integrated into an e-CVT, or power-split hybrid drive. Under NEDC or WLTC, typically it can achieve some 40% energy savings and >50% gain in 0–100 kph acceleration due to effective regenerative braking mechanism of the integrated flywheel power system. In addition to its “peak-shaving” capability, the highly-efficient, long-life flywheel power on-board, is able to keep the kinetic energy of the vehicle fully recycled, rather than dissipated during braking. The i-KERD technology has also been applied to urban railway transportation (i.e., underground railway) and off-road heavy construction equipment, where regenerative braking plays a great role on energy efficiency.
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spelling doaj.art-1a81b67e9b104837967a6fdee664cc202023-11-23T15:45:49ZengMDPI AGWorld Electric Vehicle Journal2032-66532021-12-01131810.3390/wevj13010008The Integrated Kinetic Energy Recoup Drive (i-KERD): An Optimized Powertrain for EVs, HEVs and FCEVsMin Yang0Tao Wang1Chunji Guo2Chris Ellis3Yuefeng Liao4Changzhou Haike New Energy Tech Co., Ltd., Changzhou 213001, ChinaChangzhou Haike New Energy Tech Co., Ltd., Changzhou 213001, ChinaChangzhou Haike New Energy Tech Co., Ltd., Changzhou 213001, ChinaChangzhou Haike New Energy Tech Co., Ltd., Changzhou 213001, ChinaDepartment of Automotive Engineering, Shandong University of Technology, Zibo 255000, ChinaIn this paper, a particular form of flywheel hybrid powertrain, namely, the Integrated Kinetic Energy Recoup Drive (i-KERD) is fully explored and its applications for EVs, HEVs and FCEVs in recent years to show the energy-savings and performance enhancement potential of this innovative powertrain technology. It is shown that the i-KERD is a small highspeed flywheel integrated into an e-CVT, or power-split hybrid drive. Under NEDC or WLTC, typically it can achieve some 40% energy savings and >50% gain in 0–100 kph acceleration due to effective regenerative braking mechanism of the integrated flywheel power system. In addition to its “peak-shaving” capability, the highly-efficient, long-life flywheel power on-board, is able to keep the kinetic energy of the vehicle fully recycled, rather than dissipated during braking. The i-KERD technology has also been applied to urban railway transportation (i.e., underground railway) and off-road heavy construction equipment, where regenerative braking plays a great role on energy efficiency.https://www.mdpi.com/2032-6653/13/1/8powertrainflywheelbrakinghybridenergy storage
spellingShingle Min Yang
Tao Wang
Chunji Guo
Chris Ellis
Yuefeng Liao
The Integrated Kinetic Energy Recoup Drive (i-KERD): An Optimized Powertrain for EVs, HEVs and FCEVs
World Electric Vehicle Journal
powertrain
flywheel
braking
hybrid
energy storage
title The Integrated Kinetic Energy Recoup Drive (i-KERD): An Optimized Powertrain for EVs, HEVs and FCEVs
title_full The Integrated Kinetic Energy Recoup Drive (i-KERD): An Optimized Powertrain for EVs, HEVs and FCEVs
title_fullStr The Integrated Kinetic Energy Recoup Drive (i-KERD): An Optimized Powertrain for EVs, HEVs and FCEVs
title_full_unstemmed The Integrated Kinetic Energy Recoup Drive (i-KERD): An Optimized Powertrain for EVs, HEVs and FCEVs
title_short The Integrated Kinetic Energy Recoup Drive (i-KERD): An Optimized Powertrain for EVs, HEVs and FCEVs
title_sort integrated kinetic energy recoup drive i kerd an optimized powertrain for evs hevs and fcevs
topic powertrain
flywheel
braking
hybrid
energy storage
url https://www.mdpi.com/2032-6653/13/1/8
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