Trailer access point pairing

• US 9,456,468 B2
• Filed: 09/17/2013
• Issued: 09/27/2016
• Est. Priority Date: 09/17/2012
• Status: Expired due to Fees

• Current Assignee: Knorr-Bremse Systems for Commercial Vehicle Systems Limited
• Original Assignee: Knorr-Bremse Systems for Commercial Vehicle Systems Limited
• Inventors: Fry, Matthew
• Primary Examiner(s): Khatib, Rami
• Assistant Examiner(s): BOOMER, JEFFREY C
• Application Number:
  US14/029,357
• Publication Number:
  US 20140081543A1
• Time in Patent Office: 1,106 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: B60T 7/00 Brake-action initiating means
• CPC Class Codes: B60T 7/16 operated by remote control, i.e. initiating means not mounted on vehicle
• CPC Class Codes: B60T 7/18 operated by wayside apparatus
• CPC Class Codes: B60T 7/20 specially for trailers, e.g. in case of uncoupling of or overrunning by trailer inertia-actuated overrun brakes B60T13/08
• CPC Class Codes: B60T 7/22 initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle , or by means of contactless obstacle detectors mounted on the vehicle
• CPC Class Codes: B60T 8/17 Using electrical or electronic regulation means to control braking detecting or indicating faulty operation B60T8/885
• CPC Class Codes: B60T 8/323 Systems specially adapted for tractor-trailer combinations
• CPC Class Codes: G07C 5/00 Registering or indicating the working of vehicles
• CPC Class Codes: H04W 88/00 Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices

Abstract

A trailer electronic braking system comprising a braking device capable of generating a braking force on a wheel on the trailer. The braking force is applied to brake cylinders and is controllable by a braking ECU, which braking ECU is connected to a standards compliant communication bus on the trailer. The ECU is adapted to receive data inputs from sensors, on the trailer. The system further includes an arrangement to interface to trailer electronics and a communications interface having a 802.11 wireless card adapted to transmit an SSID. The braking system is adapted to transmit a trailer identifier comprising the SSID. The trailer identifier can be paired with a further device previously provided with the trailer identifier. The braking system enables the SSID to be changed to a second SSID when a pre-determined condition is met.

Claims

1. A trailer electronic braking system, comprising:

a braking system arrangement, including;

a braking device capable of generating a braking force on at least one wheel located on at least one of a front axle and a rear axle of the trailer, wherein the braking force is controllable by an electropneumatic brake pressure control module, which is configured to selectably increase the braking force, and wherein the electropneumatic brake pressure control module is connected to a standards compliant communication bus on the trailer and is configured to receive data inputs from sensors on the trailer and to receive power via an electrical connection from the tractor;

an interface arrangement to connect to trailer electronics;

a communications interface; and

a trailer identifier;

wherein the communication interface includes a 802.11 wireless card, the 802.11 wireless card being adapted configured to transmit a service set identifier (SSID),

wherein an 802.11 transmission of the SSID enables the braking system arrangement to be paired, using BLUETOOTH™

technology, with a further device within range of the 802.11 transmission,

wherein the further device has previously been provided with the trailer identifier, the trailer identifier including the SSID, and

wherein the SSID is changed to a second SSID when a pre-determined condition is met.

2. The trailer electronic braking system of claim 1, wherein the interface arrangement includes a microcontroller.

3. The trailer electronic braking system of claim 1, further comprising:

a list of media access control (MAC) addresses associated with at least one allowable further device, the braking system detecting the MAC address of the at least one allowable further devices it detects such that it only pairs with an allowable MAC address.

4. The trailer electronic braking system of claim 1, wherein the allowable further device is provided with parking brake release codes, which codes can be transmitted to the electropneumatic brake pressure control module after pairing to thereby release a parking brake.

5. The trailer electronic braking system of claim 1, wherein the SSID is changed to a second SSID after a predetermined time interval.

6. The trailer electronic braking system of claim 1, wherein the SSID is changed to a second SSID after each logon.

7. The trailer electronic braking system of claim 1, wherein the SSID is changed to a second SSID after each logon or ignition actuation provided that a predetermined time interval is exceeded.

8. The trailer electronic braking system of claim 1, further comprising:

a list of media access control (MAC) addresses associated with at least one allowable further device, the braking system detecting the MAC address of the at least one allowable further devices it detects such that it only pairs with an allowable MAC address;

wherein the interface arrangement includes a microcontroller.

9. The trailer electronic braking system of claim 8, wherein the allowable further device is provided with parking brake releases codes, which codes can be transmitted to the electropneumatic brake pressure control module after pairing to thereby release the parking brake.

10. The trailer electronic braking system of claim 9, wherein the SSID is changed to a second SSID after a predetermined time interval.

11. The trailer electronic braking system of claim 9, wherein the SSID is changed to a second SSID after each logon.

12. The trailer electronic braking system of claim 9, wherein the SSID is changed to a second SSID after each logon or ignition actuation provided that a predetermined time interval is exceeded.

13. The trailer electronic braking system of claim 8, wherein the SSID is changed to a second SSID after a predetermined time interval.

14. The trailer electronic braking system of claim 8, wherein the SSID is changed to a second SSID after each logon.

15. The trailer electronic braking system of claim 8, wherein the SSID is changed to a second SSID after each logon or ignition actuation provided that a predetermined time interval is exceeded.