Protocols for remote vehicle access systems

• US 10,179,567 B2
• Filed: 12/02/2014
• Issued: 01/15/2019
• Est. Priority Date: 12/03/2013
• Status: Active Grant

• Current Assignee: Huf North America Automotive Parts Mfg. Corp. (Huf Hulsbeck & Furst GmbH & Co. KG)
• Original Assignee: Huf North America Automotive Parts Mfg. Corp. (Huf Hulsbeck & Furst GmbH & Co. KG)
• Inventors: Nantz, John, Honkanen, Matthew R., Luo, Yi
• Primary Examiner(s): PENDLETON, DIONNE
• Application Number:
  US15/039,124
• Publication Number:
  US 20170158168A1
• Time in Patent Office: 1,505 Days
• CPC Class Codes: B60R 25/24 using electronic identifiers containing a code not memorised by the user
• CPC Class Codes: G07C 2009/00246 periodically, e.g. after a time period
• CPC Class Codes: G07C 2009/0038 whereby the wake-up circuit is situated in the keyless data carrier
• CPC Class Codes: G07C 2009/00984 fob
• CPC Class Codes: G07C 2209/06 Involving synchronization or resynchronization between transmitter and receiver; reordering of codes
• CPC Class Codes: G07C 9/00309 operated with bidirectional data transmission between data carrier and locks

Abstract

Protocols for wireless communications between controllers in vehicles, key fobs, and sensors are shown. In particular, methods of parallel processing and interweaving data in signals are provided.

Claims

1. A wireless communications system for an automotive vehicle comprising:

a control unit in the automotive vehicle including a transceiver configured to receive signals from a fob; and

a fob comprising a transceiver and a control unit, the fob configured to transmit a signal having a plurality of data blocks to the control unit in the automotive vehicle, a single data block of the plurality of data blocks including a wake-up signal and a data packet, wherein the data packet (i) provides commands for commanding the control unit in the automotive vehicle to perform a vehicle function and (ii) is embedded with the wake-up signal in the single data block.

2. The wireless communications system of claim 1, wherein the data packet comprises an application code.

3. The wireless communications system of claim 2, wherein the application code is operable to identify a first functional payload and a second functional payload.

4. The wireless communications system of claim 3, wherein the first functional payload is different than the second functional payload.

5. The wireless communications system of claim 3, wherein the first functional payload includes a door opening data packet and the second functional payload includes a tire pressure monitoring packet.