Schaeffler's all-wheel-drive disconnect clutch will be a key technology on its upcoming demonstration vehicle.
In the coming weeks, technical specialists will equip a MY2013 Ford Escape with several fuel-smart innovations from Schaeffler,
including its thermal-management module, AWD disconnect clutch,
permanently engaged starter/generator, and latching valve. The latter
three technologies were conceived and developed in North America.
“We think we’re under $40 per percent of
fuel-economy improvement,” Jeff Hemphill, Vice President and Chief
Technical Officer for Schaeffler Group North America, said in an
interview with SAE International Magazines at NAIAS.
The thermal-management module to be
fitted on the vehicle demonstrator (called Efficient Future Mobility
North America) will be similar to the Schaeffler unit used by Audi in some production vehicles.
“But this version won’t have quite as
much functionality,” Hemphill said about the module that allows the
optimum engine temperature to be reached in the shortest time possible
and allows temperature balance to be precisely controlled.
Integration of a thermal-management module can provide a 1% reduction in fuel consumption for city and highway driving.
Schaeffler’s AWD disconnect clutch,
which decouples the unused drive axle from the drivetrain depending on
the driving situation, can generate fuel savings of up to 2% in city
driving and up to 6% in highway driving. The permanently engaged
starter/generator with a wrap-spring one-way clutch can provide up to 6%
fuel savings in city traffic.
The AWD disconnect clutch, the
permanently engaged starter/generator, and the latching valve are all
second-generation, under-development technologies. “These technologies
could start production development later this year [and] enter
production in the 2017 model year based on their maturity,” said
Hemphill.
Schaeffler’s SUV demonstrator is expected to be ready for ride-and-drive evaluations in the summer of 2013.
According to Hemphill, the initial
demonstration vehicle with its conventional powertrain and fuel-smart
Schaeffler technologies is designed to meet CAFE standards for 2020. The
company's follow-up demonstrator vehicle will add hybrid systems, with
the goal of fulfilling CAFE requirements for 2025.
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