GM demonstrates cross-brand communication capability in China V2X tech

General Motors has, for the first time, demonstrated interoperability of China connected vehicle (V2X) application layer standard.

It showcased the same at the 2016 SAE-China Congress & Exhibition, held from October 26-28 in Shanghai, having teamed up with the China Academy of Information and Communications Technology (CAICT), Tsinghua University, Chang’an Auto, Yanfeng Visteon and Shanghai International Auto City.

A complete set of communication standards is necessary for underpinning an intelligent transportation system (ITS) using connected vehicles as a key component. GM, Tsinghua University and Chang’an Auto are leading a working group for the development of the V2X application layer standard with the support of SAE-China and C-ITS. The working group initially completed a definition and demand analysis of the applications, and is now working to define the required message set dictionary and data exchange standards.

The required message set dictionary defines the content, format and coding methods for data exchange at the application layer. The data exchange standards stipulate time, frequency, data requirements and interface definition for data exchange.

Through the demonstration, the working group improved and verified the required message set dictionary and data exchange standards at the V2X application layer. In addition, it generated important reference data to bolster China’s further research on intelligent and connected vehicles (ICVs) and pave the way for their future deployment.

The demonstration included safety applications like Blind Spot/Lane Change Warning, Forward Collision Warning, Intersection Movement Assist and Special Vehicle Avoid Notification.

“V2X has the potential to mitigate many traffic collisions and improve traffic congestion by sending and receiving basic safety information such as location, speed and direction of travel between vehicles,” said Dr. John Du, director of GM China Science Lab.

“For this type of cooperative technology to work, it is essential that common standards and a security framework be established,” he added. “We are pleased to bring to China the expertise that we have gained from developing and promoting V2X technology in North America and Europe to drive ICV development in China.”