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arXiv · 1905.13180

Thermal Responses of Connected HEVs Engine and Aftertreatment Systems to Eco-Driving

Mohammad Reza Amini·Yiheng Feng·Hao Wang·Ilya V. Kolmanovsky·Jing Sun
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Abstract

Connected and automated vehicles (CAVs) have been recognized as providing unprecedented opportunities for substantial fuel economy improvement through CAV-based vehicle speed trajectory optimization (eco-driving). At the same time, the implications of the CAV operation on thermal responses, including those of engine and exhaust aftertreatment system, have not been fully investigated. To this end, firstly, a sequential optimization framework for vehicle speed trajectory planning and powertrain control in hybrid electric CAVs is proposed in this paper. Next, the impact of eco-driving and power split optimization on the engine and catalytic converter thermal responses, as well as on the tailpipe emissions is characterized. Despite an average 16% improvement in fuel economy through sequential optimization, this study shows that eco-driving slows down the thermal responses, which could unfavorably affect the tailpipe emissions.

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Mohammad Reza Amini, Yiheng Feng, Hao Wang, Ilya V. Kolmanovsky, Jing Sun. 2019-05-30. Thermal Responses of Connected HEVs Engine and Aftertreatment Systems to Eco-Driving. https://arxiv.org/abs/1905.13180

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