User's Manual

ManualsBrandsHUF ManualsElectronicsBMW Door Handle

Huf Group

Operational Description and User Manual

FLAECH TAGE NFC

I. Table of Contents

I. Table of Contents .................................................................................................... 1

General product overview ....................................................................................... 1

1.1.1 Function CA: .............................................................................................. 1

1.1.2 Function NFC: ........................................................................................... 2

1.2 Environmental conditions .................................................................................. 2

1.3 General manufacturing instructions .................................................................. 2

Assembly concept of electronics FLAECH TAGE NFC ................................... 2

NFC antenna ............................................................................................. 3

Connector definitions ........................................................................................ 4

Connector BMW I20 CA + NFC,FLAECH TAGE NFC ............................. 4

Electrical Characteristics ......................................................................................... 5

Block diagram – BMW I20 CA + NFC, LIN ....................................................... 5

Operating voltages ............................................................................................ 5

Current consumption ......................................................................................... 5

Timing conditions .............................................................................................. 5

Regulatory Information ............................................................................................ 7

General product overview

1.1.1 Function CA:

There are two different capacitive sensors. The first sensor is used for unlock function. This

sensor can distinguish an approach and a touch in SW, but there is only a LIN or UART

signalization for unlock touch. The second sensor is used for lock function and is designed

as a touch sensor. A SW differentiation between lock approach and lock touch is also

Summary of content (8 pages)

PAGE 1
Huf Group Operational Description and User Manual FLAECH TAGE NFC I. I. Table of Contents Table of Contents .................................................................................................... 1 General product overview ....................................................................................... 1 1.1.1 Function CA: .............................................................................................. 1 1.1.2 Function NFC: .............................................
PAGE 2
Huf Group possible, but just as the unlock sensor there is only a LIN or UART signalization for the lock touch. Keyless access is enabled by activating the sensors on the door handle in combination with the door handle-ECU, whereby the vehicle can be unlocked or locked. 1.1.2 Function NFC: To enable communication with an NFC device, the door handle electronics CA + NFC has a highly integrated transceiver IC for contactless communication at 13,56MHz for automotive applications.
PAGE 3
Huf Group Figure 1: FLAECH TAGE NFC with electronics plugged in bracket NFC antenna Figure 2: Detection area NFC antenna
PAGE 4
Huf Group Connector definitions Connector BMW I20 CA + NFC,FLAECH TAGE NFC Figure 3: BMW I20 CA and CA + NFC door handle connectors The BMW I20 CA and CA + NFC electronic module have the following connector pins: - Pin 1 (yellow) Pin 2 Pin 3 (brown) Pin 4 (red) = LIN = n.c.
PAGE 5
Huf Group Electrical Characteristics Block diagram – BMW I20 CA + NFC, LIN Figure 4: Block diagram – BMW I20 CA + NFC, LIN (SP2021) Operating voltages - Operating voltage range: LIN operating voltage range: Test voltage for EOL: +Ubat = 9V to 16V DC +Ubat = 8V to 18V DC +Ubat = 12V ± 2% DC Current consumption - Series parts current consumption: o Quiescent current: o Active current: Iquies ≤ 400µA for 4 TAGE per vehicle Iquies ≤ 200µA for 2 TAGE per vehicle CA = 65µA CA + NFC = 150µA Iactive ≤ 25
PAGE 6
Huf Group - - o CA o CA + NFC NFC-LPCD pulse: Clock rate microcontroller: o Kapaburst (333kHz/ 400kHz) o A/D conversion + data handling Baudrate: o UART o LIN 20ms 20ms (Kapa), 100ms (NFC) 40µs 4MHz 32MHz 4800Bit/s up to 38400Bit/s 9600Bit/s up to 38400Bit/s
PAGE 7
Huf Group Regulatory Information 3.1 FEDERAL COMMUNICATIONS COMMISSION INTERFERENCE STATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
PAGE 8
Huf Group 3.