Fuel cell hybrid electric vehicles (FCHEVs) have zero harmful emissions, fast refueling times, and long driving ranges. Autonomous FCHEVs add benefits such as collision avoidance and driver convenience yet increase vehicle energy usage due to sensors and computation. Thus, it is important to optimize vehicle speed trajectories and the energy management strategy (EMS) of autonomous FCHEVs to minimize energy use. This article uniquely proposes to achieve this goal using convex optimization, with detailed vehicle loss calculations that can be run in real time. The two novel approaches proposed are: 1) the successive method, which solves the speed problem then the EMS problem, and 2) the integrated method, which uniquely feeds back the fuel cell efficiency to the speed algorithm to solve the problem in an iterative integrated manner. The simulation results show that the integrated method uses 0.19% to 2.37% less hydrogen than the successive method on short drive cycles with varying accessory loads, and 10.12%–21.62% less hydrogen than an arbitrary constant speed profile. On longer real-world drive cycles, the integrated method reduces hydrogen use by 1.43% to 2.82% just through speed optimization. Compared to a dynamic programming benchmark, which is not implementable in real time, the integrated method uses less than 1% more hydrogen.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Integrated Convex Speed Planning and Energy Management for Autonomous Fuel Cell Hybrid Electric Vehicles


    Contributors:


    Publication date :

    2023-03-01


    Size :

    4274589 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Optimal energy management of hybrid fuel cell electric vehicles

    Karaki,S.H. / Jabr,R. / Chedid,R. et al. | Automotive engineering | 2015


    Optimal Energy Management of Hybrid Fuel Cell Electric Vehicles

    Karaki, Sami H. / Jabr, Rabih / Chedid, Riad et al. | British Library Conference Proceedings | 2015


    Optimal Energy Management of Hybrid Fuel Cell Electric Vehicles

    Panik, Ferdinand / Jabr, Rabih / Chedid, Riad et al. | SAE Technical Papers | 2015


    Online energy management applied to fuel cell hybrid electric vehicles

    Rashedi, M. / Mohammadian, M. | British Library Online Contents | 2010


    Online energy management applied to fuel cell hybrid electric vehicles

    Rashedi, Mahnaz / Mohammadian, Mohsen | British Library Online Contents | 2010