MARQUARDT GmbH
Schloßstraße 16
D 78 604 Rietheim – Weilheim
2021-08-26_User_Manual_HH2.doc
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Confidado como secreto industrial. Nos reservamos todos los derechos.
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The HH2 is a door handle for a car with capacitive touch sensors and NFC. An integrated NFC
antenna inside into the door handle allows the HH2 to identify authorized smartphones, wearables
and NFC tags; to allow the user access to the car.
The HH2 is connected to the car using a CAN-FD interface. It acts as communication channel
between CAR Electronics control Unit and NFC Readers. The car ECU NFC Reader requests to
the HH2 which communicates with the NFC device on the integrated antenna using a magnetic
field.
User manual
The user places his authorized NFC device (a smartcard or a mobile phone / wearable with an
integrated secure element ID) onto the door handle. The HH2 authorizes the user to the car
automatically as soon as a valid device is recognized. Then the door is unlocked and the driver can
access the car. The NFC communication is only activated once a NFC device is placed onto the
door handle.