# US 2025/0083484 A1 · Communication System

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- Number: US 2025/0083484 A1
- Document ID: US20250083484A1
- Status: Published application
- Kind: A1
- Application number: 18/826,432
- Filed: 2024-09-06
- Published: 2025-03-13
- Earliest claimed: 2023-09-08
- Assignees: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- Applicants: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- Inventors: Valter ZOELDHEGYI; Huba NEMETH; Frank LEITNER; Zsolt DUDAS; Adam SZOELLOSI; Andras BATAI; Tamas KOMLOS; Valer MERZA
- Web page: https://patentgrep.com/patent/US20250083484A1

## CPC

- B60D 1/62: involving supply lines, electric circuits or the like
- H04L 12/40182: {by using a plurality of communication lines}
- B60T 7/20: specially for trailers, e.g. in case of uncoupling of {or overrunning by} trailer (inertia-actuated overrun brakes B60T13/08)
- H04L 69/40: for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection (management of faults, events, alarms or notifications in data switching networks H04L41/06)
- H04W 4/44: for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
- H04W 4/46: for vehicle-to-vehicle communication [V2V]
- H04W 76/15: Setup of multiple wireless link connections
- H04L 2012/40273: {the transportation system being a vehicle}
- B60D: VEHICLE CONNECTIONS
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- B60T: VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL (electrodynamic brake systems for vehicle, in general B60L; brakes per se, i.e. devices where braking effect occurs, including ultimate brake actuators, F16D); ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A communication system for a trailer includes: a first controller and a second controller for controlling one or more loads of the trailer, a first communication channel for providing a communication line between the first controller and the towing vehicle, a second communication channel for providing a communication line between the second controller and the towing vehicle; and an internal communication link connecting the first controller and the second controller to exchange information with each other, wherein the first communication channel and the second communication channel are configured to provide independent communication to the first controller and to the second controller from the towing vehicle.

## Claims

### Claim 1

A communication system for a trailer, the trailer being configured to be towed by a towing vehicle, comprising:
a first controller and a second controller for controlling one or more loads of the trailer;
a first communication channel for providing a communication line between the first controller and the towing vehicle;
a second communication channel for providing a communication line between the second controller and the towing vehicle; and
an internal communication link connecting the first controller and the second controller to exchange information with each other,
wherein the first communication channel and the second communication channel are configured to provide independent communication to the first controller and to the second controller from the towing vehicle.

### Claim 2 (depends on 1)

The communication system according to claim 1, wherein
the one or more loads include a safety critical load to perform safety critical functions and non-safety critical loads to perform non-safety critical functions, and
the first controller and the second controller are configured to control the safety critical load and different loads from the non-safety critical loads.

### Claim 3 (depends on 1)

The communication system according to claim 1, further comprising at least one of the following:
one or more hardware accelerators adapted to accelerate the processing speed of the first controller and/or the second controller; and
a gateway connected to the first controller and/or to the second controller, adapted to exchange information between the towing vehicle and the first controller and/or the second controller,
wherein the one or more hardware accelerators and/or the gateway is included in the first controller.

### Claim 4 (depends on 1)

The communication system according to claim 1, wherein the information that is exchanged via the internal communication link includes at least one of the following:
status information about the first controller and/or the second controller;
status information about the first communication channel and/or the second communication channel;
status information about the one or more loads;
status information about the one or more hardware accelerators;
status information about the gateway; or
other information;
wherein the information is indicative of an occurring defect in operation of the communication system to the first controller or indicative of correct operation of the communication system to the first controller.

### Claim 5 (depends on 1)

The communication system according to claim 1, further comprising:
one or more hardware accelerators adapted to accelerate the processing speed of the first controller and/or the second controller, wherein
the one or more hardware accelerators include a high-level information processing accelerator and low-level information processing accelerators to accelerate the first controller and/or the second controller at a different level, and
the first controller and/or the second controller are configured to operate with the same or different hardware accelerators based on the information that is exchanged via the internal communication link.

### Claim 6 (depends on 1)

The communication system according to claim 1, wherein
the information that is exchanged via the internal communication link with one or more hardware accelerators are image data and/or point cloud data, and
the first controller processes the exchanged information faster than the second controller.

### Claim 7 (depends on 1)

The communication system according to claim 1, further comprising:
one or more hardware accelerators adapted to accelerate the processing speed of the first controller and/or the second controller,
wherein the one or more hardware accelerators are configured to process image data and/or point cloud data and include at least one of the following:
an image signal processor;
a graphics processing unit;
a neural network accelerator; or
a digital signal processor.

### Claim 8 (depends on 1)

The communication system according to claim 1, wherein
the one or more loads comprise any of the following devices: an electronic brake control device, a levelling control device, a light control device, a telematics device, or any other type of power consuming device of the trailer.

### Claim 9 (depends on 1)

The communication system according to claim 1, further comprising at least one of the following:
a first power supply channel for supplying power to the first controller from the towing vehicle via a first power supply terminal; or
a second power supply channel for supplying power to the second controller from the towing vehicle via a second power supply terminal;
wherein the first power supply channel and the second power supply channel are configured to provide independent power supply to the first controller and to the second controller from the towing vehicle.

### Claim 10 (depends on 1)

The communication system according to claim 1, further comprising:
a network of communication channels configured to enable a communication between the towing vehicle the trailer;
a network of internal communication links having one or more internal communication links between the controllers; and
a network of controllers being interconnected by the network of internal communication links,
wherein the first communication channel and the second communication channel being any two communication channels within the network of communication channels,
wherein the first controller and the second controller being any two controllers within the network of controllers, and
wherein the internal communication link between the controllers is part of the network of internal communication links.

### Claim 11 (depends on 10)

The communication system according to claim 10, wherein
the network of controllers is adapted to identify a defect in any of the controllers based on the information that is exchanged via the network of internal communication links and/or the network of communication channels, and to disable the controller with the defect.

### Claim 12 (depends on 1)

A centralized trailer architecture comprising a communication system according to claim 1.

### Claim 13 (depends on 12)

The centralized trailer architecture according to claim 12, wherein
the communication system is part of a highly autonomous driving trailer architecture.

### Claim 14

A method for establishing communication between a towing vehicle and a trailer within a centralized trailer system architecture of a communication system, comprising:
controlling one or more loads of the trailer by a first controller and a second controller;
providing a first communication line between the first controller and the towing vehicle via a first communication channel;
providing a second communication line between the second controller and the towing vehicle via a second communication channel;
connecting the first controller and the second controller with an internal communication link to exchange information with each other;
wherein the first communication channel and the second communication channel are configured to provide independent communication to the first controller and to the second controller from the towing vehicle.

### Claim 15

A computer product comprising a non-transitory computer-readable medium having program code stored thereon which, when executed on a processor, causes the acts of:
controlling one or more loads of the trailer by a first controller and a second controller;
providing a first communication line between the first controller and the towing vehicle via a first communication channel;
providing a second communication line between the second controller and the towing vehicle via a second communication channel;
connecting the first controller and the second controller with an internal communication link to exchange information with each other;
wherein the first communication channel and the second communication channel are configured to provide independent communication to the first controller and to the second controller from the towing vehicle.