Continental Automotive Systems Corporation SMK35 User Manual
Editor :
SM JEON
Document name
Project code
Version:
0.1
JUNE 26, 2014
ECO / DF No.
Identification No. : Document No.
File: User Manual for SMK3.5(English)
Page 3 / 7
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1. System configulation
1.1
scope of SMART KEY SYSTEM
The System offers following features:
passive access to two doors and trunk; driver side, passenger side, and trunk/tailgate
passive start after interior detection of the SMART KEY FOB.
LF-RF communication (based on Continental
’s SMART KEY system)
passive access/locking of the two front doors via a toggle push button in the door
handles
handles
passive access trunk/tailgate via the trunk lid switch at the trunk
immobilizer backup solution integrated into SMK 3.5
communication to the engine management system via a single line interface
communication to the ESCL via a single line interface
block of the steering column by the ESCL device
1.2
short description of the SYSTEM
1.2.1
General Definition of SMART KEY
The SMART KEY system is a system that allows the user to access and operate a
vehicle in a very convenient way.
vehicle in a very convenient way.
The SMART KEY system is triggered by pressing a push button in the door handle
or by pressing a start-stop button in the dash board.
or by pressing a start-stop button in the dash board.
After triggered, the vehicle sends out a LF telegram to all antenna output. And then
Smartkey FOB measures the power of each antenna, and sends this information to
SMARTKEY UNIT(SMK 3.5). From this information, Smart Key unit determines the
location of SMART KEY FOB and decides whether to perform a particular action
(unlocking, locking…) or to remain inactive.
Smartkey FOB measures the power of each antenna, and sends this information to
SMARTKEY UNIT(SMK 3.5). From this information, Smart Key unit determines the
location of SMART KEY FOB and decides whether to perform a particular action
(unlocking, locking…) or to remain inactive.
1.2.2
Wireless Communication
Electromagnetic waves are used to exchange information between the vehicle and the
SMART KEY FOB. Both, vehicle and SMART KEY FOB are equipped with a transmitter,
a receiver and several antennas.
SMART KEY FOB. Both, vehicle and SMART KEY FOB are equipped with a transmitter,
a receiver and several antennas.
1.2.3
concept Description
With this concept it is possible to have a set of interior antennas that cover the vehicle’s
interior and a set of exterior antennas that cover the vehicle’s exterior.
For an un
interior and a set of exterior antennas that cover the vehicle’s exterior.
For an un
ambiguous separation between the vehicle’s interior and exterior it is sufficient
that at least one area is covered exactly by the corresponding operating ranges of the
antennas.
antennas.