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A series of high-profile accidents involving self-driving cars is slowing the mad rush into the autonomous-vehicle business, according to a report issued May 2.

Nikola Corp. has sued rival Tesla Inc. for $2 billion, claiming Tesla infringed on U.S. patents Nikola received on cab design, including wrap windshield, midentry door, fuselage, fender, side cladding, and the overall design of a semi.

A demand from the California DMV of eight companies testing self-driving cars has highlighted a number of areas where the technology falls short of being safe to operate with no human backup.

LONG BEACH, Calif. — Kenworth Truck Co. unveiled for the first time a prototype T680 tractor equipped with a parallel hybrid-electric propulsion system that is part of California’s Hybrid Electric Cargo Transport demonstration project.

On March 18, a robot-driven Volvo operated by Uber hit and killed a pedestrian in Arizona. Advocates for automation maintained that the tragedy shouldn’t detract from the likelihood that driverless technology is eliminating human error and making driving safer.

Advances in tracking technology are enabling fleets to better assess driver performance and fairly reward them for fuel-efficient driving.

Uber Technologies Inc.’s settlement of Waymo’s trade-secrets lawsuit in February left a key piece unresolved: the role played by Anthony Levandowski, the engineer at the center of the alleged theft of critical self-driving technology.

Danish autonomous robot manufacturer Mobile Industrial Robots was acquired by Teradyne Inc. for $148 million in cash, with an additional $124 million paid if several performance milestones are met through 2020.

Allcargo Logistics Ltd. is emulating Uber Technologies Inc. to boost its business of sharing marine containers.

Mack Trucks North America plans to have a fully electric Mack LR refuse model equipped with an integrated Mack electric drivetrain operating in North America in 2019.