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2007-11-22 Manufacturing News
Ticona Engineering Polymers
Improve New Electronic Accelerator Pedal
Three Ticona engineering polymers help an electronic accelerator pedal
produced by Hella to increase safety and comfort and reduce energy consumption
and CO2 emission in the MINI COOPER and other vehicles.
The engineering polymers, Celstran* LFRT, Hostaform* POM (acetal copolymer)
and Celanex* PBT from Ticona, the engineering polymers business of Celanese
Corporation, are used in an electronic accelerator pedal produced by Hella
for the BMW, MINI COOPER and other vehicles.
“In today’s modern engine management systems, the accelerator
pedal transmitter is crucially important,” explains Michael Hörr,
project manager for automotive interiors at Ticona Engineering Polymers.
The accelerator pedal sensors are used to detect the pedal position and
produce pedal force feedback. Component supplier Hella was the first manufacturer
to develop integrated electronic accelerator pedal sensors for diesel
and gasoline engines. The sensors are installed in cars with drive-by-wire
systems and electric vehicles. The accelerator pedal sensors are designed
to enable both the accelerator pedal and the systems for pedal force feedback
and signal generation to be combined in a single modular unit.
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Celstran* LFRT, Hostaform*
POM and Celanex* PBT from Ticona Used in Five Key Components
of the BMW MINI COOPER. Click
photos for larger images. photo: Ticona |
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Since this unit controls the engine response according to the specific
situation in a far more sensitive way, it enables reduced fuel consumption
and CO2 emission.
The following three engineering thermoplastics from Ticona Engineering
Polymers are used in five key components of the pedal to improve the operation
of this drive-by-wire technology:
• Celstran LFRT ensures light component weight coupled with high
strength in the pedal plate and housing. This material’s high dimensional
stability and insensitivity to moisture and temperature, coupled with
its very good mechanical properties, enable the pressure impulses of the
driver’s foot to be sensed very precisely, which ensures smooth
and sensitive acceleration.
• Celanex (2300 GV 1/30) protects the sensitive sensor housing with
its high stiffness, excellent dimensional stability and good electrical
and dielectric properties, which are unaffected by the expected range
of temperature and moisture.
• Hostaform POM helps in the mechanical sliding elements of the
pedal with special friction and wear characteristics of the tribologically
modified polyacetal copolymer. Hostaform XAP for automotive interiors
also ensures compliance with the emission requirements.
“Throughout the car’s lifetime, there will be no unpleasant
noises from the accelerator pedal. In addition, Hostaform and Celstran
resins meet automotive manufacturers’ vehicle interior emission
requirements,” says Horr.
* Except as otherwise noted, all registered trademarks are owned by Ticona
or its affiliates. MINI is a registered trademark of MINI, a division
of BMW.
Read a recent press release about -
. Automotive supplier uses molding
and polymers combo for Opel sunroof
Global tier one automotive supplier ArvinMeritor specified materials from
Ticona when using special outsert molding for the Opel Astra sunroof system.
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