Toyota New TNGA High-Efficiency Eight-Speed Automatic Transmission Direct Shift-8AT for FWD Vehicles

The new eight-speed automatic transmission direct shift-8AT (UA80) is the first automatic transmission to be developed based on the Toyota New Global Architecture (TNGA) design philosophy. Commonizing or optimizing the main components of the UA80 enables compatibility with a wide torque range, including both inline 4-cylinder and V6 engines, while shortening development terms and minimizing investment. Additionally, it has superior packaging performance by optimizing the transmission size and arrangement achieving a low gravity center. It contributes to Vehicle’s attractiveness by improving driving performance and NVH. At the same time, it drastically improves fuel economy and quietness.

• Record URL:
  https://doi.org/10.4271/2017-01-1093
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Michikoshi, Yosuke
  • Kusamoto, Daisuke
  • Ota, Hirofumi
  • Ikemura, Masashi
  • Takebayashi, Noritaka
  • Nobukazu, Ike
  • Takashi, Yasuda
  • Ryohei, Inoue
• Conference:
  • WCX™ 17: SAE World Congress Experience
  • Location: Detroit Michigan, United States
  • Date: 2017-4-4 to 2017-4-6
• Publication Date: 2017-3-28

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Automatic transmissions; Fuel consumption; Noise; Optimization; Product development; Vehicle performance
• Identifier Terms: Toyota Jidosha Kabushiki Kaisha
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01684938
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2017-01-1093
• Files: TRIS, SAE
• Created Date: Mar 30 2017 10:21AM