AVL transmission aims at best-in-class PHEV performance

  • 05-Mar-2015 03:27 EST
FutureHybrid_2.jpg.png

For its new 7-Mode transmission, AVL focused on key requirements for hybrid drivetrains including best-in-class fuel consumption in NEDC charge-sustaining mode, full drivetrain functionality with a depleted hybrid vehicle battery, and best-in-class add-on costs for a plug-in hybrid electric vehicle drivetrain, according to company engineers. The transmission will be on display at the 2015 SAE World Congress in Detroit. It is part of what AVL calls its Future Hybrid design concept, which takes a holistic development approach for all key components of the drivetrain and demonstrates the best fuel efficiency and lowest product cost for overall customer acceptance. The Future Hybrid concept is defined as a C-segment vehicle with an all-electric-range target of 30 km (in the NEDC cycle), an acceleration of 0 to 100 km/h below 10 s, and a certified CO2 emission target of 35 g CO2/km. A shift in transmission development to consider double-transient shift operations with more than two active shift elements allowed a multifunctional and compact transmission design, the engineers noted. The Lepelletier planetary transmission with an electric motor integrated with the second ring gear of the Ravigneaux gearset provides low hardware complexity and product cost while increasing the demands on the control system to manage the transient shift operations.

Author:
Sector:
Mentions:
Share
HTML for Linking to Page
Page URL
Grade
Rate It
3.00 Avg. Rating

Read More Articles On

2016-06-28
Start of production for the plug-in hybrid Chrysler Pacifica minivan begins in late 2016, marking a milestone as Fiat Chrysler Automobiles (FCA)'s first mass-produced PHEV.
2016-07-10
Volvo is using a blast of compressed air as a relatively simple solution to boost torque delivery of its new D5 diesel powering the V90 wagon.
2016-07-15
Validation testing of the new 2-step VCR by several OEMs has been successful to date and is expanding, as the industry examines more sophisticated solutions to meet CO2 regulations.
2016-08-04
What does it cost to replace an EV battery at the retail level? For a BMW i3 a new battery will set owners back about $16,000, according to Dr. Christian Cozzarini, BMW Department Head, Environmental Engineering, who spoke at the 2016 CAR Management Briefing Seminars.

Related Items

Standard
2015-08-10
Training / Education
2010-03-15
Technical Paper / Journal Article
1996-04-01
Technical Paper / Journal Article
2012-06-13
Training / Education
2011-04-12