This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Coasting Technology for Real-World Fuel Economy Improvement of a Hybrid Vehicle
Technical Paper
2020-01-1195
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Automobile manufactures need to adopt new technologies to meet global CO2 (carbon dioxide) emission regulations and better fuel efficiency demands from customers. Also, the production cost should be as low as possible for an affordable vehicle. Therefore, it is advantageous for OEMs to develop fuel efficient technologies which can be controlled by software without additional hardware costs. The coasting control is a fuel efficiency improvement technology that can be implemented by the change of vehicle software only. The coasting control is a technology that reduces the driving resistance (Deceleration) when the driver releases the gas pedal. This technology leads to reducing the energy required for the vehicle to drive and results in improving the real-world fuel economy. In an internal combustion engine (ICE) vehicle, the coasting state is achieved by changing the gear to neutral, and the effect has been discussed and clarified by many previous studies. On the other hand, in the coasting state of a hybrid vehicle, the regenerative energy to the motor is reduced while the driver releases the gas pedal. The coasting control of a hybrid vehicle tends to be perceived as deteriorating the fuel efficiency because the regenerative energy decreases. In this study, relations of the vehicle deceleration and the fuel economy (vehicle energy consumption) of a hybrid vehicle were studied quantitatively. In addition, we confirmed that the coasting technology was effective to improve fuel economy (reducing CO2) based on the real-world big data.
Recommended Content
Authors
Topic
Citation
Yamaguchi, T., "Coasting Technology for Real-World Fuel Economy Improvement of a Hybrid Vehicle," SAE Technical Paper 2020-01-1195, 2020, https://doi.org/10.4271/2020-01-1195.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 | ||
Unnamed Dataset 4 | ||
Unnamed Dataset 5 |
Also In
References
- Mueller , N. , Strauss , S. , Tumback , S. , Goh , G. et al. Next Generation Engine Start/Stop Systems: “Free-Wheeling” SAE Int. J. Engines 4 1 874 887 2011 https://doi.org/10.4271/2011-01-0712
- Ghosh , A. , Bhatia , A. , and Suresh , S. Analysis of Potential of Sailing Functionality in Indian Driving Conditions SAE Technical Paper 2016-28-0009 2016
- Koch-Groeber , H. Coasting on Highways-Potentials and Realization 13th Stuttgart Symposium 2013
- Imanishi , Y. , Tashiro , N. , Iihoshi , Y. , and Okada , T. Development of Predictive Powertrain State Switching Control for Eco-Saving ACC SAE Technical Paper 2017-01-0024 2017 https://doi.org/10.4271/2017-01-0024
- Lee , H. , Lee , J. , Yoo , S. , Jeong , K. et al. Utilization of ADAS for Improving Performance of Coasting in Neutral SAE Technical Paper 2018-01-0603 2018
- Xu , S. , Li , S.E. , Zhang , X. , Cheng , B. et al. Fuel-Optimal Cruising Strategy for Road Vehicles with Step-Gear Mechanical Transmission IEEE Transactions on Intelligent Transportation Systems 16 6 3496 3507 2015 10.1109/TITS.2015.2459722
- Lee , J. , Nelson , D.J. , and Lohse-Busch , H. Vehicle Inertia Impact on Fuel Consumption of Conventional and Hybrid Electric Vehicles Using Acceleration and Coast Driving Strategy SAE Technical Paper 2009-01-1322 2018 https://doi.org/10.4271/2009-01-1322
- Xu , S. , Li , S.E. , Peng , H. , Cheng , B. et al. Fuel-Saving Cruising Strategies for Parallel HEVs IEEE Transactions on Vehicular Technology 65 6 4676 4686 2016 10.1109/TVT. 2015.2490101
- Shieh , S.Y. , Ersal , T. , and Peng , H. Pulse-and-Glide Operation for Parallel Hybrid Electric Vehicles with Step-Gear Transmission in Automated Car-Following Scenario with Ride Comfort Consideration 2019 American Control Conference 2019 10.23919/ACC.2019.8815364
- Muta , K. , Yamazaki , M. , and Tokieda , J. Development of New-Generation Hybrid System THS II-Drastic Improvement of Power Performance and Fuel Economy SAE Technical Paper 2004-01-0064 2004 https://doi.org/10.4271/2004-01-0064
- Katsumata , Y. , Segawa , S. , Adachi , K. , Higashimata , A. et al. Development of a Slip Speed Control System for a Lock-Up Clutch (Part II) SAE Technical Paper 2008-01-0001 2008 https://doi.org/10.4271/2008-01-0001
- Tashiro , N. , Imanishi , Y. , Inaba , R. , and Okada , T. Engine and Transmission Control Using the Prediction Information for Sailing Stop System JSAE Technical Paper 48 2 581 586 2017 10.11351/jsaeronbun.48.581