GM is buying a startup that builds a critical piece of self-driving technology (GM)

GM Cruise Automation Chevy Bolt

On Monday, General Motors said it would buy Strobe, which uses laser-radar (Lidar) technology to help self-driving cars identify objects at a distance, to boost its push into the market for self-driving vehicles.

Deal terms were not disclosed, and GM did not immediately respond an inquiry about details.

"Strobe's Lidar technology will significantly improve the cost and capabilities of our vehicles so that we can more quickly accomplish our mission to deploy driverless vehicles at scale," GM's Cruise Automation chief executive, Kyle Vogt, said.

GM acquired Cruise in 2016 to press forward with an urban-self-driving solution. In 2017, the carmaker began producing all-electric Chevy Bolt EVs equipped with Cruise's integrated technology while also testing the systems in the San Francisco Bay Area.

"Strobe’s Lidar sensors provide both accurate distance and velocity information, which can be checked against similar information from a radar sensor for redundancy," Vogt wrote in a Medium post announcing the deal.

"Radars typically also provide distance and velocity information and operate under more challenging weather conditions, but they lack the angular resolution needed to make certain critical maneuvers at speed," he added. "When used together, cameras, Lidars, and radars can complement each other to create a robust and fault-tolerant sensing suite that operates in a wide range of environmental and lighting conditions."

Strobe Lidar

GM and Cruise are pursuing a Lidar-based strategy for self-driving cars. The Cadillac brand is now offering Super Cruise, a Lidar-powered system designed to operate on highways.

Tesla has balked at the cost of Lidar and is using cameras and sensors instead.

Cameras are considered less accurate than Lidar, but these systems can operate in poor weather conditions that confuse Lidars.

"The successful deployment of self-driving vehicles will be highly dependent on the availability of LIDAR sensors," Julie Schoenfeld, Strobe's CEO, said in a statement. "Strobe’s deep engineering talent and technology backed by numerous patents will play a significant role in helping GM and Cruise bring these vehicles to market sooner than many think."

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