Continental SMK27 User Manual

Document : User Manual for SMK2.7

Project : SMK2.7

Project Code :

Version: 0.1

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Date: Aug. 26 '11

Engineering change order-No.:

Design Freeze No.:

Number of pages: 12

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Filename: User Manual for SMK2.7

Identification No. :

Contents list Page

1. System configulation 3

1.1 Scope of SMART KEY SYSTEM 3

1.2 short description of the SYSTEM 3

1.2.1 General Definition of SMART KEY 3

1.2.2 Wireless Communication 3

1.2.3 Concept Description 4

1.2.4 System Architecture 4

1.2.5 Main Functions 5

1.3 System Overview / Block Diagram 6

2. SMK2.7 Configuration 8

2.1 Block Diagram 8

2.2 Pin Description 9

2.3 SMK2.7 ECU 11 3 SMK 2.7 ECU Test Board for homologation 12

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3.1 Shape of tool box 12

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3.2 Switch 12

3.3 Method to use Test board 12

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Editor : CU Jun Document name Project code

ECO / DF No.

Version: 0.1 Aug. 26. 2011

File: User Manual for SMK2.7 Rev1.doc

Identification No. : Document No.

Page 2 / 12

1. System configulation

1.1 Scope of SMART KEY SYSTEM

The System offers the 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

(without interior trunk detection)

 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

 passive access trunk/tailgate via the trunk lid switch at the trunk  immobilizer backup solution integrated into SMK 2.7

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 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. To access the vehicle, no traditional key or remote control unit is needed.

The SMART KEY system is triggered by pressing a push button in the door handle.

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After triggered, the vehicle sends out a request in a limited range. If the SMART KEY FOB receives this request, SMART KEY FOB automatically sends a response to the vehicle. Then the system decides whether to perform a particular action (unlocking, locking…) or to remain inactive.

In a similar manner, the SMART KEY system is triggered by pressing a start-stop button in the dash board.

After triggered, the vehicle sends out a request in a limited range(especially interior region). If the SMART KEY FOB receives this request, SMART KEY FOB automatically sends a response to the vehicle. Then the system decides whether to perform a particular action (terminal status change…) 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.

Editor : CU Jun Document name Project code

ECO / DF No.

Version: 0.1 Aug. 26. 2011

File: User Manual for SMK2.7 Rev1.doc

Identification No. : Document No.

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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 unambiguous 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.

The functions of the SMART KEY system have to be provided in a clearly defined and limited range. For the up-link from the vehicle to the SMART KEY FOB, a magnetic field with a frequency of 125 kHz and ASK modulation is used.

Technical aspects of 125 kHz – magnetic field:

 virtually no reflections,  cubical decrease of field strength  allows good range control,  released frequency band (ISM),

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 high penetration,  low quiescent current demand due to 125 kHz input stage (SMART KEY FOB),  less sensitive for detuning compared to higher frequency.

For the down-link from the SMART KEY FOB to the vehicle, the standard radio frequency (RF) is used (similar to the classic remote control functions) with FSK modulation.

1.2.4 System Architecture

The system is designed as an optional system, making it possible to equip vehicles of the same car-Line with different levels of access control systems.

The system is suitable to be integrated into an existing architecture that provides central locking functions with standard remote control. This proposal assumes that the following functions / devices are already present in the vehicle’s architecture.

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 Central locking system (latch / motor – drivers etc.)  Standard body control functions  Warning buzzer

Editor : CU Jun Document name Project code

ECO / DF No.

Version: 0.1 Aug. 26. 2011

File: User Manual for SMK2.7 Rev1.doc

Identification No. : Document No.

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