The use of hybrid electric vehicles is an effective means of reducing pollution and improving fuel economy. Certain vehicle control strategies commonly automatically shut down or restart the internal combustion engines of hybrid vehicles to improve their fuel consumption. Such an engine autostart/stop is not engaged or controlled by the driver. Drivers often do not expect or prepare for noticeable vibrations, noise, or an unsmooth transition when the engine is autostarted/stopped. Unsmooth engine autostart/stop transitions can cause driveline vibrations, making the ride uncomfortable and the customer dissatisfied with the vehicle. This research simulates the dynamic behaviors associated with the neutral starting and stopping of a power-split hybrid vehicle. The seat track vibration results of analysis and hardware tests of the baseline control strategy are correlated. Several antivibration control strategies are studied. The results reveal that pulse cancellation and the use of a damper bypass clutch can effectively reduce the fluctuation of the engine block reaction torque and the vibration of the seat track by more than 70% during the autostarting and stopping of the engine. The initial crank angle can have an effect on the seat track vibration as well.

References

References
1.
Bayindir
,
K. Ç.
,
Gözüküçük
,
M. A.
, and
Teke
,
A.
,
2011
, “
A Comprehensive Overview of Hybrid Electric Vehicle: Powertrain Configurations, Powertrain Control Techniques and Electronic Control Units
,”
Energy Convers. Manage.
,
52
, pp.
1305
1313
.10.1016/j.enconman.2010.09.028
2.
Doucette
,
R. T.
, and
McCulloch
,
M. D.
,
2011
, “
Modeling the Prospects of Plug-in Hybrid Electric Vehicles to Reduce CO2 Emissions
,”
Appl. Energy
,
88
, pp.
2315
2323
.10.1016/j.apenergy.2011.01.045
3.
Chau
,
K. T.
, and
Wong
,
Y. S.
,
2002
, “
Overview of Power Management in Hybrid Electric Vehicles
,”
Energy Convers. Manage.
,
43
, pp.
1953
1968
.10.1016/S0196-8904(01)00148-0
4.
Wu
,
B.
,
Lin
,
C. C.
,
Filipi
,
Z.
,
Peng
,
H.
, and
Assanis
,
D.
,
2004
, “
Optimal Power Management for a Hydraulic Hybrid Delivery Truck
,”
Veh. Syst. Dyn.
,
42
(
1
), pp.
23
40
.10.1080/00423110412331291562
5.
Wang
,
L.
,
Collins
,
E. G.
, Jr.
, and
Li
,
H.
,
2011
, “
Optimal Design and Real-Time Control for Energy Management in Electric Vehicles
,”
IEEE Trans. Veh. Technol.
,
60
(
4
), pp.
1419
1429
.10.1109/TVT.2011.2122272
6.
Zhang
,
P.
,
Yang
,
S.
, and
Peng
,
Q.
,
2012
, “
Study on Simulation of Fuel Economy of Hybrid Electric Vehicle
,”
Appl. Mech. Mater.
,
101–102
, pp.
374
378
.10.4028/www.scientific.net/AMM.101-102.374
7.
Chan
,
C. C.
,
2007
, “
The State of the Art of Electric, Hybrid, and Fuel Cell Vehicles
,”
Proc. IEEE
,
95
(
4
), pp.
704
718
.10.1109/JPROC.2007.892489
8.
Hendrickson
,
J.
,
Holmes
,
A.
, and
Freiman
,
D.
,
2009
, “
General Motors Front Wheel Drive Two-Mode Hybrid Transmission
,”
SAE
Paper 2009-01-0508.10.4271/2009-01-0508
9.
Meisel
,
J.
,
2011
, “
Kinematic Study of the GM Front-Wheel Drive Two-Mode Transmission and the Toyota Hybrid System THS-II Transmission
,”
SAE
Paper 2011-01-0876. 10.4271/2011-01-0876
10.
Grewe
,
T. M.
,
Conlon
,
B. M.
, and
Holmes
,
A. G.
,
2007
, “
Defining the General Motors 2-Mode Hybrid Transmission
,”
SAE
Paper 2007-01-0273. 10.4271/2007-01-0273
11.
Ahn
,
K.
, and
Cha
,
S. W.
,
2008
, “
Developing Mode Shift Strategies for a Two-Mode Hybrid Powertrain With Fixed Gears
,”
SAE
Paper 2008-01-0307. 10.4271/2008-01-0307
12.
Tamai
,
G.
,
Reeves
,
S.
, and
Grewe
,
T. H.
,
2010
, “
Truck Utility & Functionality in the GM 2-Mode Hybrid
,”
SAE
Paper 2010-01-0826. 10.4271/2010-01-0826
13.
Canova
,
M.
,
Guezennec
,
Y.
, and
Yurkovich
S.
,
2009
, “
On the Control of Engine Start/Stop Dynamics in a Hybrid Electric Vehicle
,”
ASME J. Dyn. Syst. Meas. Contr.
,
131
(
6
), p.
061005
. 10.1115/1.4000066
14.
Davis
,
R. I.
, and
Lorenz
,
R. D.
,
2003
, “
Engine Torque Ripple Cancellation With an Integrated Starter Alternator in a Hybrid Electric Vehicle: Implementation and Control
,”
IEEE Trans. Ind. Appl.
,
30
(
6
), pp.
1765
1774
.10.1109/TIA.2003.818972
15.
Fesefeldt
,
T.
, and
Müller
,
S.
,
2009
, “
Optimization and Comparison of Quick and Hybrid Start
,” SAE Paper 2009-01-1340.
16.
Hu
,
M.
,
Xu
,
S.
,
Qin
,
D.
, and
Li
,
G.
,
2012
, “
The Research of Starting Engine In-Motion for HEV
,”
Appl. Mech. Mater.
,
121–126
, pp.
3008
3014
. 10.4028/www.scientific.net/AMM.121-126.3008
17.
Kuang
,
M. T.
,
2006
, “
An Investigation of Engine Start-Stop NVH in a Power Split Powertrain Hybrid Electric Vehicle
,”
SAE
Paper 2006-01-1500. 10.4271/2006-01-1500
18.
Tomura
,
S.
,
Ito
,
Y.
,
Kamichi
,
K.
, and
Yamanaka
,
A.
,
2006
, “
Development of Vibration Reduction Motor Control for Series-Parallel Hybrid System
,”
SAE
Paper 2006-01-1125. 10.4271/2006-01-1125
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