|Table of Contents|

Control strategy of power performance and fuel economy for CVT vehicle on long uphill highway(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2012年03期
Page:
44-52
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Control strategy of power performance and fuel economy for CVT vehicle on long uphill highway
Author(s):
YAN Guang-hui1; 2;  YU Qiang1;  GUAN Zhi-wei2;  DU Feng2
1. School of Automobile, Chang'an University, Xi'an 710064, Shaanxi, China; 2. School of Automobile and Transportation, Tianjin University of Technology and Education, Tianjin 300222, China
Keywords:
automotive engineering;  continuously variable transmission;  transmission ratio control;  whole vehicle simulation;  long uphill highway;  power performance;  fuel economy
PACS:
U463.212
DOI:
-
Abstract:
The control strategy of CVT transmission ratio, the power performance and fuel economy of vehicle on long uphill highway were analyzed. Multiple work points between the best dynamic and best economical rotational speeds of engine at equal interval were selected, and the influence of transmission ratio of every working point on the power performance and the fuel economy was studied. The optimal control strategy of CVT transmission ratio under considering the two properties was found by Simulink simulation. Simulation result indicates that the acceleration response time of the optimal control strategy decreases by 1.2 s compared with the best dynamic control strategy, the fuel consumption rate of the optimal control strategy decreases by 7.9% compared with the best economical control strategy, and the acceleration curve is smooth. Therefore, the two performances of vehicle on long uphill highway can be effectively improved by using the optimal control strategy of transmission ratio. 3 tabs, 12 figs, 14 refs.

References:

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Memo

Memo:
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Last Update: 2012-06-30