GASTONE - Development of a New Powertrain Concept Based on the Integration of Electric Generation, Energy Recovery and Storage

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• 作者：Alex Rinaldi^a ; ^{alex.rinaldi@crf.it" class="auth_mail" title="E-mail the corresponding author} ; Alberto Maria Merlo^a ; Estefaní ; a Hervá ; s-Blasco^b ; Emilio Navarro-Peris^b ; José ; Miguel Coberá ; n Salvador^b
• 关键词：beltless engine ; kinetic energy recovery ; heat recovery ; thermoelectric generator ; heavy duty transport ; CNG engine
• 刊名：Transportation Research Procedia
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：14
• 期：Complete
• 页码：1061-1070
• 全文大小：421 K

文摘

The new challenge in the reduction of CO₂ emissions by heavy duty trucks is leading to a technological evolution in powertrain efficiency.

Towards this objective, the EU has funded in the frame of the 7th framework program the project GASTONE: a collaborative project between several private and public companies and institutions: CRF, FTP, Continental, GENTHERM, MAGNA and U. Politécnica de Valencia, targeting the development of a new powertrain concept based on the integration of electric generation, energy recovery and storage with engine system and control strategies.

The main features of this CNG engine concept are:

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The energy recovery from the exhaust gases heat with a cascade approach thanks to the adoption of an advanced thermoelectric generator and a turbo-generator.

•

The integration of a smart kinetic energy recovery system to substitute the alternator with a smarter electrical machine.

•

The electrification of the main auxiliaries (coolant and oil pumps, auxiliary e-supercharger and air conditioning compressor).

The electrification process is supported by an improvement of the performance of the CNG engine (the actual average value is about 38%): this number is expected to rise by 4% thanks to the engine control strategy improvement, by 1% due to the introduction of the water charge air cooler, by 2% from the reduction of the belt drive and gear losses, by 1% from the system strategy and management optimization and by 7% from the exhaust heat recovery (thermo-electric generator plus turbo-generator).

This paper presents the details of the new powertrain concept design, the simulation tool developed to support the design and optimize the system and a cost per function tool to perform an economic analysis in the hypothesis to introduce the system in the market.

The obtained benefits are expressed in terms of fuel saving for a target real driving cycle and effects related to the new devices are developed and tested.

The project is in the design phase and the paper collects a first estimation of results based on the design, strategy and control improvement.