Huf MINI_TAGE BMW Mini F57 Door Handle User Manual

Huf MINI_TAGE BMW Mini F57 Door Handle

Important Information

additional lifetime volume with electronic – Mini F57
Customer:| BMW
Component:| Mini (CA + NFC left/right)
HW-Version:| 04.00
SW-Version:| 04.00

Change History

List of Figures

FIGURE 1 : PCBA BMW MINI SIDE VIEW

List of Abbreviations

Product Overview

Product variants

The BMW Mini F57 door handle electronics consists of one PCB with CA+NFC function – which can be potted in a left-hand driver and also in a right-hand- driver door handle.

• Sensor CA + NFC: (3pol.)
  • Electronics with two capacitive sensors (Lock/ Unlock), NFC and LIN interface SP2021

Function capacitive sensors:

There are two different capacitive sensors. The first sensor is used for unlock function and designed as an approach sensor. The second sensor is used for lock function and is designed as a touch sensor.

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.

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. This reader has a gateway function, the possibility to buffer required data and various diagnostic information can be provided as well.

The data is transferred to the NFC device according to ISO/IEC 14443-A. The data transmission to the vehicle is realized via LIN-Bus interface. ECP according to Car Keys specification is implemented to communicate also with Apple NFC devices.

In LPCD mode the door handle electronics checks the magnetic field for amplitude or phase change. This LPCD polling takes place in adjustable interval lengths.

Electronic design

Figure 1: PCBA BMW Mini Side view

Detection areas

**Lock sensor/ NFC antenna

**

**Unlock sensor (inside door handle)

**

Pinning

Technical data

• Temperature:
  • Operating temperature range: -40°C to +85°C
  • Storage temperature range: -40°C to +90°C
  • Repainting temperature: 110°C for 1h, 130°C for 0.25h
• Operating voltage range:
  • LIN 8 – 18V (± 2%)
  • Function 9V – 16V (±2%)
• Quiescent current:
  • Standby-Mode max. 190µA
  • Aktiv-Mode < 250mA
• Measuring cycle:
  • NFC 200ms (adjustable up to 500ms)
  • NFC-LPCD pulse : 40µs
• Working frequencies:
  • NFC carrier frequency 13.56MHz
• Baud rates:
  • LIN 19.2kBit/s
• NFC:
  • Mode NFC initiator in Reader-Writer Mode
  • Communication Role Proximity Coupling Device (PCD)
  • Communication Range ≤ 3cm
  • Standard ISO/IEC 14443 Type A + Apple ECP
  • Type of modulation 100% ASK modified Miller (PCD to PICC) Load Modulation OOK (PICC to PCD)
  • Bit rate 13.56MHz/128 ≈ 106kBaud
  • Frequency 13.56MHz +/- 7kHz
  • Crystal Stability +/- 30ppm

Operating modes for Homologation

• OP1 (Application Mode):
  • Door handle in normal application Polling-Mode. Capacitive sensors and NFC-Field will be triggered cyclically, LIN interface is not active.
• OP2 (Radiated CW-Mode + Modulation):
  • Door handle in Active-Mode. Capacitive sensors are disabled. NFC Continuous-Wave-Mode + Random Modulation Type A is activated permanently, LIN interface is active.
  • Radiated Continuous Wave (min. 5 minutes)
  • Radiated Continuous Modulation (min. 5 minutes)
• OP3 (Card Communication Mode):
  • Door handle in Active-Mode. Capacitive sensors are disabled. NFC Continuous-Wave-Mode + Request Type A is activated cyclically, LIN interface is not active. NFC communication response can be checked via LED.
  • Radiated Continuous Receive (min. 5 minutes, optical response at reception of a wanted telegram)

Only for information:

• Conducted SMA samples:
  • Every connection directly at the antenna will generate a major distortion of the main frequency due to R, C and L values parallel to the NFC antenna. NFC filter will be detuned and resonance maximum will be no longer at round about 13,56MHz. Therefore it is not possible to test with conducted SMA samples. Also known from other projects with NFC door handle.
  • Conducted (with SMA jack) Continuous Wave (min. 5 minutes)
  • Conducted (with SMA jack) Continuous Modulation (min. 5 minutes)

Declaration of Conformity, product Label

Radio equipment authorization to FCC in USA

The transmitter will be supplied as an original equipment device to the car manufacturer.

According to 47 CFR 15.19 (labelling requirements) the car manufacturer will print the following text in the appropriate User’s Manual of the car:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.

Usually this is followed by the following FCC caution:

Any changes or modification not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.

Radio equipment authorization to RSS-210 in Canada

The transmitter will be supplied as an original equipment device to the car manufacturer.

According to RSS-210 (labelling requirements) the car manufacturer will print the following text in the appropriate User’s Manual of the car:

This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.

Regulatory Information

USA:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.

Any changes or modification not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.

Kanada:

This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.

Any changes or modification not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.

Technical specification for homologation
0727.013 BMW Mini

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