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International Journal of Automotive Technology

, Volume 18, Issue 5, pp 911–922 | Cite as

Modeling and control of engine starting for a full hybrid electric vehicle based on system dynamic characteristics

  • Yonggang LiuEmail author
  • Daqi Chen
  • Zhenzhen Lei
  • Datong Qin
  • Yi Zhang
  • Rui Wu
  • Yong Luo
Article

Abstract

This paper focuses on the dynamic modeling and control of engine starting for a Full Hybrid Electric Vehicle (FHEV) consisting of an Integrated Starter Generator (ISG) and Dual Clutch Transmissions (DCTs). The dynamic characteristics of the engine, the ISG motor and the main clutch are analyzed respectively. The dynamic models of the main components of the powertrain system are also established taking the system dynamic characteristics into consideration. The FHEV dynamic model of engine starting during electric driving mode has been investigated in detail. The coordinated control strategy of engine starting has been proposed based on the powertrain system dynamic characteristics. The simulation for the engine starting control during electric driving mode has been performed based on the Matlab/Simulink platform. The simulation results show that the proposed control strategy satisfies the requirements of response and smoothness during engine starting process. Furthermore, a bench test has been carried out to analyze the system characteristics during engine starting process. The test data is highly agreeable to the simulation data and the effectiveness of engine starting control strategy is validated by the comparison between simulation results and the test data.

Keywords

Hybrid electric vehicle Dual clutch transmissions Modeling Simulation Experiment 

Nomenclature

Nomenclature

a

rate of air mass flow in manifold and port passage

at

air mass flow rate past throttle plate

ap

air mass flow rate into cylinder

fi

injected fuel mass flow

f

cylinder port fuel mass flow

ff

fuel film mass flow

fv

fuel vapor mass flow

ct

flow coefficient of throttle body throat

α

is the throttle plate angle

Vm

volume of manifold and port passage

Ti

engine indicated torque

Tload

engine loading torque

θ

spark advance angle

ηi

engine indicated efficiency

λ

air/fuel ratio

Hu

low BTU of fuel

Vd

d-axis voltage

Vq

q-axis voltage

id

d-axis current

iq

q-axis current

Ld

d-axis inductance

Lq

q-axis inductance

p

pole pairs of permanent magnet synchronous motor

ψm

magnet flux of permanent magnet synchronous motor

Φm

magnet flux

Hm

magnet field intensity

Lm

of magnetic circuit

xs

armature displacement

xs0

initial compression displacement of the HSV return spring

Qin

average flow of supplying port

Qout

average flow of recycle port

Qnet

net flow from the HSV to hydraulic cylinder

τ

duty ratio

xp

hydraulic cylinder piston displacement

Subscripts

driven

main clutch driven plate

driving

main clutch driving plate

w

wheel

L

loading

C0

main clutch

e

engine

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Copyright information

© The Korean Society of Automotive Engineers and Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Yonggang Liu
    • 1
    • 2
    Email author
  • Daqi Chen
    • 1
  • Zhenzhen Lei
    • 1
  • Datong Qin
    • 1
  • Yi Zhang
    • 3
  • Rui Wu
    • 1
  • Yong Luo
    • 2
  1. 1.State Key Laboratory of Mechanical Transmissions & School of Automotive EngineeringChongqing UniversityChongqingChina
  2. 2.Key Laboratory of Advanced Manufacture Technology for Automobile Parts, Ministry of EducationChongqing University of TechnologyChongqingChina
  3. 3.Department of Mechanical EngineeringUniversity of Michigan-DearbornWashingtonUSA

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