Whether a fuel, diesel, hybrid or electric vehicle, you need to open and close, secure and comfortable.
(remote keyless entry) are available in the market since 1983 in two basic types of form factor: key separate from small remote control and integrated in to the car-key itself (most common today).
is considered an evolution of RKE. For the most of vehicle brands, PKE systems are well known and in use for the high-end models. Main advantage ofPKE
systems is to unlock vehicle without any physical interaction where we are in a certain radius of action.
Even with this kind of technology we can find several functional possibilities:
- Open the door only if you touch the door (capacitive sensor inside door handle)
- Door is open when you are inside of the action radius
- Additional keyless-go function: you can switch-on engine by pushing a button, rather than turning a key.
As consumers demand additional benefits, these features are increasingly making their way into medium-class cars. To meet these demands, developers need cost-efficient electronic system solutions that support a high level of integration.
Most of the access systems are based on the CIA model
for information and security (a simple but widely-applicable security model is the CIA triad; standing for Confidentiality, Integrity and Availability; three key principles which should be guaranteed in any kind of secure system) and the STRIDE model
(The six letters in STRIDE each represent a particular risk). These are used in security bulletins to describe the nature of security vulnerability.
The first PKE system was patented in the US (1990) patent 4942393. It can give us an idea of technology is developed and adopted in a massive way for the automotive industry.
PKE system is composed by a Transmitter side (LF-emitter antennas) and receiver side (LF-receiver antennas). Both of them are under Premo portfolio
(all components for automotive sector have been qualified under AEC-Q200
standard). With several solutions in the key fob side: 3DC11LP and 3DC15 series
with label, foam and cap solutions, and also in the car side: KCA, KGEA-DH, KGEA-BFCR, BFCWX-series
with sealed compound, and over-molded solution.
Switches is now the leader (Tier-1) in smart access systems for vehicle and Premo
(Tier-2) is worldwide leader to provide one of the key components to smart access system: 3D-coil antenna: 3DC11LP, from smaller segment to mid and high-end vehicle platforms.
3D-coil antenna was an invention of PREMO in 2005 (patent publication 2200652) and main advantages over a traditional 3 components (one per axis) is to work with a small monolithic component (saving space and avoid the handling of 3 separate transponder coils), assuring 100% orthogonal (90 degrees) between “X” and “Y” axis and very high sensitivity.
Premo automotive components for PKE systems are being recommended by some of the most important global IC´s manufacturers such as Atmel
, Austria Microsystem
, NXP, etc.
The Key-fob of the future will provide NFC
(Near Field Communication) capability. Premo is ready to offer also an appropriate antenna for this application: SDTR1103-HF-0020K
. (small size and super-drop-test resistance).
Premo provides more than 4 million of 3D-Coils per year.
Most of the Tier-1 manufacturers (Marquardt, Continental, Lear, Valeo, etc.) require an excellent Automatic Manufacturing Line for their own and their direct suppliers (obviously ISO/TS 16949 certified). Premo is certified ISO/TS16949
for Design and Manufacturing (China & Morocco plants).
The automation of all manufacturing stages for the 3D-coil, has been the most complex, hard task and the biggest challenge for Premo Engineering Department, but finally achieved with a huge human and financial effort, and now is ready to continue facing the future in this market.
RFID Product Manager