Connected vehicle collision avoidance

Overview · What matters in this field right now?

In short

Research

Nothing here is one device, and every part answers to a deadline

1 / 8

A connected collision warning is a chain of four jobs. Something detects an object, something puts that object into a message another vehicle can use, the receiving car reconciles it with what its own sensors see, and then something decides whether to warn or brake. Different groups of filers claim each stage, and one number bounds the whole chain: the warning has to arrive while there is still time to act.

Based on

A collision warning method for unsignal controlled road intersections based on V2I communicationPatent · Nov 2021
Intersection collision avoidance device and method using v2x and gpsPatent · Aug 2023

Research

The message stopped describing the sender and started describing the road

4 / 8

The Basic Safety Message carries where the sender is. A collective perception message carries what the sender has seen: object type, position, velocity and size, expressed in a frame the receiver can interpret. ETSI standardised this as a second-generation V2X service, and the evaluation literature now treats the perception pipeline that produces those objects as the part that decides performance.

Market

China's commercial-vehicle rule is the volume channel the news describes

5 / 8

China has published the component standard its vehicle side will be judged against, GB/T 45315-2025, covering environmental, positioning, receiver-sensitivity and communication-security requirements for LTE-V2X on-board systems. A draft mandatory standard from the Ministry of Transport's Highway Research Institute would then require new operating buses, trucks and tractor-trailers, excluding trailers, to carry LTE-V2X direct-communication terminals from the factory. Industry coverage puts the covered volume at roughly 2.1 to 2.5 million new commercial vehicles a year.

Research

The measurement problem moved into the roadside's coordinate frame

7 / 8

To place a roadside detection in a car's own frame, three things have to agree: the clock, the geometry and the pose. Filings specify pulse-per-second timing, a pose transform transmitted over V2X so the infrastructure can express a target in the vehicle's coordinates, and mounting geometry held to a tenth of a degree.

Research

What is being built

Documents by area

470
466
332
45
27

Market

What reaches buyers

Rules and standards in the news

Strategy

Where the money goes

Money committed

What's new · What changed since the last update?

12 Nov · Week 2 of Nov 2026 · 4 new documents

Highlights · 1

Innovation activity

Communication & Networking

#### Matrix Design Group secures US protection for a magnetic-plus-radio collision zone already published in South Africa What it is: A proximity warning system in which one vehicle carries a magnetic-field transmitter and a second carries a locator that answers over radio, letting the first vehicle compute the second's position and raise an alarm when it enters a defined safety zone.

Where the 4 landed

Decision & Control3
Communication & Networking1

In the market

Research · What is being built?

Where the work is growing

Dot size: documents that year

Where the work is growing
Area	2021	2022	2023	2024	2025	2026 so far	Total
							469
							468
							336
							44
							23

What problems are they working on?

Size and shade: documents

Largest 15 of 142 problems

Latest in innovation

3 NovVehicle to vehicle collision avoidance system and method Patent · Matrix Design Group Autonomous mining vehicle safety 30 OctAn automatic braking (AEB) control system Patent · Beidou Technology Automatic emergency braking 30 OctA Multi-Vehicle Cooperative Perception Method Based on Risk Prediction Patent · China University Of Petroleum V2X Cooperative Collision Avoidance 30 OctA forward-following linkage driving system and method for platoon formation Patent · Tongji University Vehicle Platooning Control 29 OctMethod for transmitting message and device for same in wireless communication system Patent · LG Electronics V2X message transmission protocols

Connected vehicle collision avoidance expertOn research

Nothing here is one device, and every part answers to a deadline

A connected collision warning is a chain of four jobs. Something detects an object, something puts that object into a message another vehicle can use, the receiving car reconciles it with what its own sensors see, and then something decides whether to warn or brake. Different groups of filers claim each stage, and one number bounds the whole chain: the warning has to arrive while there is still time to act.

The message stopped describing the sender and started describing the road

The Basic Safety Message carries where the sender is. A collective perception message carries what the sender has seen: object type, position, velocity and size, expressed in a frame the receiver can interpret. ETSI standardised this as a second-generation V2X service, and the evaluation literature now treats the perception pipeline that produces those objects as the part that decides performance.

The measurement problem moved into the roadside's coordinate frame

To place a roadside detection in a car's own frame, three things have to agree: the clock, the geometry and the pose. Filings specify pulse-per-second timing, a pose transform transmitted over V2X so the infrastructure can express a target in the vehicle's coordinates, and mounting geometry held to a tenth of a degree.

Fusion runs at two levels, and they cost different amounts

The simple version exchanges finished object lists and merges them. The ambitious version exchanges point clouds or feature maps and fuses before detection, which buys accuracy and spends bandwidth and latency. A Tongji comparison across early, feature and late fusion concludes the choice turns on how suddenly objects appear and how fast they move, favouring late fusion in fast, unpredictable scenes and early fusion where precision matters most.

The delay has been measured, and the first sighting is the slow part

This is the part of the chain with real numbers. On an ETSI-compliant roadside unit prototype, information reached the vehicle in 157 ms for an object already being tracked and 250 ms for one seen for the first time. An infrastructure-based collective perception system integrated into an open driving stack delivered in about 30 ms end to end, with a second radio channel holding the link when one lost a large share of its packets. A scaled robotic testbed spanning camera, edge node, roadside unit, vehicle and actuator put detection-to-action under 100 ms.

The decision end is an envelope, and the envelope is deliberately conservative

The receiving car keeps authority and uses the message as one more input. Bosch's connected brake applies a partial deceleration on a vehicle-to-everything message and leaves the emergency stop to the vehicle's own sensors. Beijing Electric Vehicle tests a cloud-optimised trajectory against a distance and force envelope and takes over when the envelope is breached. DAF passes the larger of two decelerations to the brake controller. Guangdong Luquan scores a local and a cloud decision for credibility before combining them.

The links with measurements are the transport, the alignment and the delivery

The honest reading of this chain is uneven. Moving a message, aligning two frames and delivering inside the budget are demonstrated on hardware and reported against the requirement. The perception feeding them is usually modelled as ideal. When a realistic detector was substituted for the ideal one in a collective perception simulation, the system reached roughly 42% of the ideal detection capability.

Market · What is reaching the market?

Latest in the market

3 NovADAS Could Become Mandatory In India By 2030: What It Means For Car Buyers | TOI Auto News · auto.timesofindia.com Automatic emergency braking 31 OctPolicy Briefs - The Export Practitioner News · exportprac.com Connected Vehicle Trade Regulation 23 Octఇక కార్లకు adasను తప్పనిసరి.. కేంద్ర ప్రభుత్వం కీలక ప్రతిపాదన..! - ఇక కార్లకు adasను తప్పనిసరి.. కేంద్ర ప్రభుత్వం కీలక ప్రతిపాదన..! News · tv9telugu.com Automatic emergency braking 23 OctMoRTH Proposes Mandatory Automatic Emergency Braking System on all Cars News · carwale.com Automatic emergency braking 22 OctU-M to improve pedestrian, vehicle safety at intersections with $5.66 million from U.S. DOT - Michigan Engineering News News · news.engin.umich.edu Smart intersection safety infrastructure

Rules and standards in the news

3 NovADAS Could Become Mandatory In India By 2030: What It Means For Car Buyers | TOI Auto News · auto.timesofindia.com Automatic emergency braking 23 Octఇక కార్లకు adasను తప్పనిసరి.. కేంద్ర ప్రభుత్వం కీలక ప్రతిపాదన..! - ఇక కార్లకు adasను తప్పనిసరి.. కేంద్ర ప్రభుత్వం కీలక ప్రతిపాదన..! News · tv9telugu.com Automatic emergency braking 23 OctMoRTH Proposes Mandatory Automatic Emergency Braking System on all Cars News · carwale.com Automatic emergency braking 8 JulBIS Issues New General Authorization 3, Creating A “Trusted Supplier” Program Under The ICTS Connected Vehicle Rule - Export Controls & Trade & Investment Sanctions - United States News · www.mondaq.com Connected Vehicle Trade Regulation 12 JunDoT clears spectrum hurdles for vehicle safety tech with twin notifications - The HinduBusinessLine News · www.thehindubusinessline.com V2X message transmission protocols

Connected vehicle collision avoidance expertOn the market

The purchase order is a compliance date

Nothing in the news shows a buyer choosing connected collision avoidance because a trial proved it prevents crashes. What the news shows is equipment being forced out by calendar.

China's commercial-vehicle rule is the volume channel the news describes

China has published the component standard its vehicle side will be judged against, GB/T 45315-2025, covering environmental, positioning, receiver-sensitivity and communication-security requirements for LTE-V2X on-board systems. A draft mandatory standard from the Ministry of Transport's Highway Research Institute would then require new operating buses, trucks and tractor-trailers, excluding trailers, to carry LTE-V2X direct-communication terminals from the factory. Industry coverage puts the covered volume at roughly 2.1 to 2.5 million new commercial vehicles a year.

What is selling now is retrofit, proof of concept and letters of intent

The transactions in the news are small and mostly not purchases of the safety function.

The licence money is collected at the modem

This is the most consequential thing the market evidence says about the patent estate.

The roadside vendor holds the signed contract, and the vehicle feature remains unbought

The one contract type with a named buyer and a named seller in this news is roadside. Greeley, Colorado awarded a Kapsch distributor work to help emergency vehicles pass intersections; Colorado's transport department selected Yunex Traffic for 150 roadside units as one of two vendors. Neither requires fleet penetration, and preemption requires no negotiation between ordinary vehicles at all.

Strategy · Where is the money and effort going?

How far along each area is

Innovation Market A year ago

How far along each area is
	Selling
	On its way to market
	On its way to market
	On its way to market
	Being built

Money, launches and partners

Money, launches and partners
	Dec – Feb	Mar – May	Jun – Aug	Sep – Nov so far
Launches and deployments	–	–	31 AugEnhancing vehicle safety through IIoT-based collision avoidance systems \| Discover Computing \| Springer Nature Linklink.springer.com 10 JulEdge-intelligent safelink-V2X: A low-latency cooperative framework for real-time vulnerable road user protection \| PLOS Onejournals.plos.org	–
Partnerships	10 JanAutonomous Vehicles and Their Implications on Future Road Design and SafetyGeorge Washington University, Western Illinois University, Virginia Tech, Abia State Polytechnic 9 JanOptimizing Decentralized Congestion Control: Performance Evaluation on IEEE 802.11p NetworksUniversity of Modena and Reggio Emilia, Ferrari 8 JanNavigation Path Planning and Flight Rules in Simulated Air Corridors for Urban Air MobilityWichita State University, University of North Texas	24 MaySALT-V: Lightweight Authentication for 5G V2X BroadcastingCity University of Hong Kong (Dongguan), City University of Hong Kong, Hong Kong University of Science and Technology (Guangzhou), University of Miami, Chongqing University 9 MayV2V Collision Avoidance and Automatic Braking System based on IoTMittal Hospital, Institut Teknologi PLN 9 MayV2V Collision Avoidance and Automatic Braking System based on IoTMittal Hospital, Institut Teknologi PLN	31 AugA visual-looming-based connected collision warning trigger for rainy driving: Effect on brake reaction time, deceleration behavior, and surrogate safety outcomesNorth China University of Technology, Southwest Jiaotong University, China People's Public Security University 12 AugCOLLISION PREVENTION SYSTEM AND METHOD THEREOFBaidu, Byda 7 AugAn Autonomous Driving Decision-Making Method and System Based on a Risk Assessment ModelBeijing Institute Of Technology, Shandong Huichuang Information Technology, Shandong Weichuang Information Technology	23 OctAutonomous driving decision-making method that integrates action-level risk prediction and safety forward-looking constraintsBeijing Institute Of Technology, Shandong Huichuang Information Technology, Shandong Weichuang Information Technology 30 SepSINR-Driven Cross-Layer Energy Optimization (SD-CLEO) for 5G-Enabled Vehicular Sensor NetworksHassan Usman Katsina Polytechnic, Umaru Musa Yar'adua University 29 SepAn Autonomous Driving Decision-Making Method and System Based on a Risk Assessment ModelBeijing Institute Of Technology, Shandong Huichuang Information Technology, Shandong Weichuang Information Technology
New to this radar	26 DecCOLLISION PREVENTION SYSTEM FOR MOUNTAINOUS TERRAINChandigarh University 26 DecCollision avoidance methods, devices and electronic equipment for vehicles in mining areasXinjiang Tianchi Energy Sources 12 DecA cooperative emergency braking method, system, and medium based on V2V communicationIm Motors Technology	28 AprSystem for security testing of V2X-based applicationsBudapest University of Technology and Economics 17 MarVehicle cooperative control methods, devices, equipment and program products in emergency scenariosGuangqi Honda, Guangzhou Honda Automobile 10 MarComplex Urban Environment Perception and Collision Warning System Based on Intelligent Connected VehiclesCAERI Intelligent Network Automobile Testing Center	7 AugAn Autonomous Driving Decision-Making Method and System Based on a Risk Assessment ModelShandong Huichuang Information Technology, Shandong Weichuang Information Technology 25 JulV2X - Collision Avoidance — Project proposalAl-Azhar University 19 JunA tiered early warning method for routine supervision of intelligent connected vehiclesCATARC Zhilian Technology	1 SepNavigation cost computation for lane changes before a critical intersectionToyota Research Institute 1 SepHuman-machine collaborative methods and electronic equipment for identifying potential hazards and assisting decision-making in automotive sitesMintaian Safety Technology 1 SepA Priority Departure Method for Connected Buses Based on Game Theory and Model Predictive ControlDalian Maritime University

Connected vehicle collision avoidance expertOn strategy

Patents have grown fourfold while paper output flattened

Patents published in this field rose from 65 in 2021 to 266 by 23 October 2026. Papers climbed to 115 in 2025 and have fallen back since, at 66 over the same ten months. The current year is counted only to 23 October.

The growth has moved from the radio to the decision layer

Communication work is the one area that has stopped climbing. It reached 107 documents in 2025 and stands at 95 for the partial 2026. Perception went from 90 to 134 over the same comparison, and decision and control went from 42 in 2024 to 83 in 2025 and 109 by late October 2026.

No organisation holds more than about one per cent of it

The largest holders in the field sit at fifteen documents each, out of roughly 1,360. There is no incumbent. That changes what a patent position is worth here: it buys a seat at standards work and a negotiating chip, and it does not buy control of a route to market.

The brake suppliers have arrived at the junction the universities had to themselves

Decision and control is the only area where companies and universities are level, at 110 documents against 169 combined academic and education. In the earlier filings that area was mostly a university problem. Kunming split intersection control into an upper planning layer and a lower predictive layer. Chongqing grouped connected and human-driven vehicles into mixed platoons governed by a game. Jilin modelled an overtaking negotiation against an oncoming car.

The organisations that grade warnings have started patenting the grading

Validation and deployment is the smallest substantive area at 45 documents. Twenty-eight of those are patents and nine are papers, so even the measurement layer is being claimed privately.

Overview · What matters in this field right now?

Nothing here is one device, and every part answers to a deadline

The purchase order is a compliance date

Patents have grown fourfold while paper output flattened

The message stopped describing the sender and started describing the road

China's commercial-vehicle rule is the volume channel the news describes

The growth has moved from the radio to the decision layer

The measurement problem moved into the roadside's coordinate frame

What is selling now is retrofit, proof of concept and letters of intent

Research

Market

Strategy

What's new · What changed since the last update?

Communication & Networking

Research · What is being built?

Where the work is growing

What problems are they working on?

Latest in innovation

Market · What is reaching the market?

Latest in the market

Rules and standards in the news

Strategy · Where is the money and effort going?

How far along each area is

Money, launches and partners

Launches and deployments

Partnerships

New to this radar

Who bets where · Who is shaping this field?

Data · The evidence behind this radar

What do you want to know next?