Coordinated Control of Downshift Powertrain of Combined Clutch Transmissions for Electric Vehicles
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-01
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
To improve the shift quality of electric vehicles equipped with two-gear automatic transmissions, the coordinated control of the combined clutch and the motor is proposed.
The dynamic model of shift process is built up, the dynamic characteristics of each phase of downshift process are analyzed, and linear quadratic optimal control is used to optimize the shift process.
As a result, the optimal trajectories of the motor torque and oil pressure of the combined clutch are obtained.
Compared to the clutch control only, the simulation results indicate that shift quality is improved remarkably by employing the proposed coordinated control.
Specifically, the shift jerk and sliding friction work are decreased by 43% and 44%, respectively, with accelerator pedal angle 50%.
In contrast, the reduced percentages are 57% and 89% when accelerator pedal is not depressed.
American Psychological Association (APA)
Li, Junqiu& Wei, Han. 2014. Coordinated Control of Downshift Powertrain of Combined Clutch Transmissions for Electric Vehicles. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-511885
Modern Language Association (MLA)
Li, Junqiu& Wei, Han. Coordinated Control of Downshift Powertrain of Combined Clutch Transmissions for Electric Vehicles. Mathematical Problems in Engineering No. 2014 (2014), pp.1-12.
https://search.emarefa.net/detail/BIM-511885
American Medical Association (AMA)
Li, Junqiu& Wei, Han. Coordinated Control of Downshift Powertrain of Combined Clutch Transmissions for Electric Vehicles. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-511885
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-511885