Research on shift schedule modification based on load rate

Pan Liu; Bolan Liu; Chuang Zhang; Qiangqiang Zeng; Xiaochen Shi

Research on shift schedule modification based on load rate

Pan Liu^*, Bolan Liu, Chuang Zhang, Qiangqiang Zeng, Xiaochen Shi

^*Corresponding author for this work

School of Mechanical Engineering

Beijing Institute of Technology

Research output: Contribution to conference › Paper › peer-review

Abstract

This paper investigates a linear modification method of heavy-duty vehicles’ shift schedule based on vehicle load rate. The load rate has been proposed to recognize the road slope in real-time. Firstly, two kinds of special condition called zero-load-rate condition and full-load-rate condition are defined. Dynamic shift schedule under each condition is obtained respectively from steady state experiment. The load rate is derived from vehicle dynamic theory. Secondly, vehicle shifting speed is calculated by linear interpolation method using the current load rate. Finally, simulation and test bench experiments are carried out. It is verified that the current road condition can be identified in real-time to keep the vehicle in appropriate gear. By the method in this paper, phenomenon of shift hunting is eliminated and vehicle power demand is satisfied.

Original language	English
Publication status	Published - 2016
Event	36th FISITA World Automotive Congress, 2016 - Busan, Korea, Republic of Duration: 26 Sept 2016 → 30 Sept 2016

Conference

Conference	36th FISITA World Automotive Congress, 2016
Country/Territory	Korea, Republic of
City	Busan
Period	26/09/16 → 30/09/16

Keywords

Heavy-Duty Vehicle
Intelligent Shift Control
Load Rate
Road Identification
Shift Points Modification

Cite this

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title = "Research on shift schedule modification based on load rate",

abstract = "This paper investigates a linear modification method of heavy-duty vehicles{\textquoteright} shift schedule based on vehicle load rate. The load rate has been proposed to recognize the road slope in real-time. Firstly, two kinds of special condition called zero-load-rate condition and full-load-rate condition are defined. Dynamic shift schedule under each condition is obtained respectively from steady state experiment. The load rate is derived from vehicle dynamic theory. Secondly, vehicle shifting speed is calculated by linear interpolation method using the current load rate. Finally, simulation and test bench experiments are carried out. It is verified that the current road condition can be identified in real-time to keep the vehicle in appropriate gear. By the method in this paper, phenomenon of shift hunting is eliminated and vehicle power demand is satisfied.",

keywords = "Heavy-Duty Vehicle, Intelligent Shift Control, Load Rate, Road Identification, Shift Points Modification",

author = "Pan Liu and Bolan Liu and Chuang Zhang and Qiangqiang Zeng and Xiaochen Shi",

year = "2016",

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TY - CONF

T1 - Research on shift schedule modification based on load rate

AU - Liu, Pan

AU - Liu, Bolan

AU - Zhang, Chuang

AU - Zeng, Qiangqiang

AU - Shi, Xiaochen

PY - 2016

Y1 - 2016

N2 - This paper investigates a linear modification method of heavy-duty vehicles’ shift schedule based on vehicle load rate. The load rate has been proposed to recognize the road slope in real-time. Firstly, two kinds of special condition called zero-load-rate condition and full-load-rate condition are defined. Dynamic shift schedule under each condition is obtained respectively from steady state experiment. The load rate is derived from vehicle dynamic theory. Secondly, vehicle shifting speed is calculated by linear interpolation method using the current load rate. Finally, simulation and test bench experiments are carried out. It is verified that the current road condition can be identified in real-time to keep the vehicle in appropriate gear. By the method in this paper, phenomenon of shift hunting is eliminated and vehicle power demand is satisfied.

AB - This paper investigates a linear modification method of heavy-duty vehicles’ shift schedule based on vehicle load rate. The load rate has been proposed to recognize the road slope in real-time. Firstly, two kinds of special condition called zero-load-rate condition and full-load-rate condition are defined. Dynamic shift schedule under each condition is obtained respectively from steady state experiment. The load rate is derived from vehicle dynamic theory. Secondly, vehicle shifting speed is calculated by linear interpolation method using the current load rate. Finally, simulation and test bench experiments are carried out. It is verified that the current road condition can be identified in real-time to keep the vehicle in appropriate gear. By the method in this paper, phenomenon of shift hunting is eliminated and vehicle power demand is satisfied.

KW - Heavy-Duty Vehicle

KW - Intelligent Shift Control

KW - Load Rate

KW - Road Identification

KW - Shift Points Modification

UR - http://www.scopus.com/inward/record.url?scp=85060486393&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85060486393

T2 - 36th FISITA World Automotive Congress, 2016

Y2 - 26 September 2016 through 30 September 2016

ER -

Research on shift schedule modification based on load rate

Abstract

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Keywords

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