Advanced Technology for Dry Multi-Plate Clutch in FWD HEV Transmission (JATCO CVT8 HYBRID)

There has been a growing need in recent years to further improve vehicle fuel efficiency and reduce CO2 emissions. JATCO began mass production of a transmission for rear-wheel-drive (RWD) hybrid vehicle with Nissan in 2010, which was followed by the development of a front-wheel-drive (FWD) hybrid system (JATCO CVT8 HYBRID) for use on a midsize SUV in the U.S. market. While various types of hybrid systems have been proposed, the FWD system adopts a one-motor two-clutch parallel hybrid topology which is also used on the RWD hybrid. This high-efficiency system incorporates a clutch for decoupling the transmission of power between the engine and the motor. The hybrid system was substantially downsized from that used on the RWD vehicle in order to mount it on the FWD vehicle. This paper describes various seal technologies developed for housing the dry multi-plate clutch inside the motor, which was a key packaging technology for achieving the FWD hybrid system.

• Record URL:
  • https://doi.org/10.4271/2015-01-1094
• 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:
  • Aoyagi, Tsuyoshi
  • Ishii, Shigeru
  • Uehara, Hiroki
• Conference:
  • SAE 2015 World Congress & Exhibition
  • Location: Detroit Michigan, United States
  • Date: 2015-4-21 to 2015-4-23
• Publication Date: 2015-4-14

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 1503-1507
• Serial:
  • SAE International Journal of Engines
  • Volume: 8
  • Issue Number: 4
  • 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: Carbon dioxide; Clutches; Energy conservation; Fuel conservation; Hybrid vehicles; Packaging; Production; Rear wheel drive; Securing and joining equipment; Transmissions
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01791274
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2015-01-1094
• Files: TRIS, SAE
• Created Date: Dec 9 2021 10:12AM