Design and analysis of shift robot with passive joint

Jing Zhao, Yaxing Duan, Ziqiang Zhang, Biyun Xie

Research output: Contribution to journalArticlepeer-review


In order to improve the efficiency of gear shifter testing, a kind of shift robot with a special passive joint is proposed to complete the human-like shifting operation automatically. The shift robot is mainly composed of two prismatic pairs, a cylindrical pair and a passive joint. The two prismatic pairs act as actuators of the mechanism to complete a part of the shifting operation, and then the shift lever can be pulled into the accurate gear position by the shift torque of the gear shifter. However, the shifting lever may skip the target gear position into the next gear position. In order to solve the gear-skip phenomenon, a limit block is applied to the passive joint. Then, the shifting processes are simulated through the dynamic model of the shift robot. The optimal position of the limit block is determined based on its dynamic characteristics.

Original languageEnglish
Pages (from-to)30-39
Number of pages10
JournalHigh Technology Letters
Issue number1
StatePublished - Mar 10 2022

Bibliographical note

Publisher Copyright:


  • Dynamic model
  • Gear shifter
  • Passive joint
  • Shift robot
  • Shifting operation

ASJC Scopus subject areas

  • Biotechnology
  • Control and Systems Engineering
  • Information Systems
  • General Materials Science
  • General Energy


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