Development of A 1.5L High-Efficiency and High-Specific-Power Hybrid
Engine 2022-01-7062
Although the brake thermal efficiency of the state-of-the-art Atkinson-cycle
hybrid engines have reached 41%, such engines typically have a low specific
power. The ideal hybrid engines for SUVs should have a high thermal efficiency
as well as a high specific power. Jiangling Motors recently developed a
4-cylinder, 1.5L TGDI hybrid Miller engine for powering mid-size SUVs, which has
achieved 42% brake thermal efficiency, 19.3-bar BMEP, and 73.3-kW/L specific
power. The engine has a high compression ratio, a long stroke, and is equipped
with a low-pressure EGR system. It can operate with the stoichiometric mixture
on the full engine map, with the help of the water-cooled exhaust manifold and
the intelligent thermal management system.
Citation: Liu, Y., Liao, S., Zheng, Y., Chen, B. et al., "Development of A 1.5L High-Efficiency and High-Specific-Power Hybrid Engine," SAE Technical Paper 2022-01-7062, 2022, https://doi.org/10.4271/2022-01-7062. Download Citation
Author(s):
Yong Liu, Shanbin Liao, Yuewei Zheng, Bin Chen, Ruigang Miao, Cuiwei Zeng, Xianlin Ouyang, Xingqi Cai, Yanhua Yang, Honglian Zeng, Liming Cao, Ho Teng
Affiliated:
Jiangling Motors Corporation Ltd.
Pages: 13
Event:
SAE 2022 Vehicle Electrification and Powertrain Diversification Technology Forum
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Hybrid engines
Thermal management
Exhaust manifolds
Exhaust gas recirculation (EGR)
Product development
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