New Generation Hydraulic-Mechanical Transmission with Lock-up Mechanisms and Automatic Start Clutch

New Generation Advanced Hydraulic-Mechanical Transmission (A-HMT) with the Lock-Up mechanism and the automatic start clutch mechanism was developed. In the lock-up mechanism, an electronic control in conjunction with transmission control was adopted using oil temperature, throttle opening, and input / output rotation ratio as parameter to reduce a rotational energy change of input and output axis caused by the volumetric efficiency of A-HMT. In the automatic start clutch, the load sensing function, damper function, and cooling function by replacing the simple hydraulic mechanism are equipped. By these solutions, the transmission efficiency has enhanced approximately 10% compared with former A-HMT, and excellent starting performance and smooth transmission performance have achieved.

• Record URL:
  • https://doi.org/10.4271/2008-32-0040
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/19463936
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Yoshida, Yoshihiro
  • Yakigaya, Nobuyuki
  • Nakamura, Kazuhiko
  • Takeuchi, Kazuhiro
  • Nakano, Kenichi
  • Usukura, Yasutaka
• Conference:
  • Small Engine Technology Conference & Exposition
  • Location: Milwaukee Wisconsin, United States
  • Date: 2008-9-9 to 2008-9-11
• Publication Date: 2008-9-9

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 1381-1388
• Serial:
  • SAE International Journal of Engines
  • Volume: 1
  • Issue Number: 1
  • Publisher: SAE International
  • ISSN: 1946-3936
  • EISSN: 1946-3944
  • Serial URL: https://www.sae.org/publications/collections/content/E-JOURNAL-03/

Subject/Index Terms

• TRT Terms: Clutches; Electronic control; Engine starters; Hydraulic equipment; Throttles; Transmissions; Two stroke cycle engines
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01695433
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2008-32-0040
• Files: TRIS, SAE
• Created Date: Feb 21 2019 9:51AM