Automated Truck Industry Focuses on Manufacturing Scale for Level 4 Systems

A report from Telemetry argues that the development of Level 4 automated driving systems for heavy-duty trucks has advanced, with the current challenge centered on manufacturing and scaling production. The analysis, referenced by FreightWaves, indicates that establishing after-sales support networks is a key requirement for fleet adoption at scale.

For many years, developers used retrofitted production vehicles as prototypes. While this approach allowed for rapid prototyping and testing, it is not considered scalable for volume manufacturing. One company, PlusAI, reportedly deployed a fleet of over one hundred retrofitted trucks for customers. The retrofit model, while fast for creating prototypes, faces significant challenges including high costs, unpredictable quality due to each truck being unique, and difficulties in providing maintenance support.

The commercial trucking sector operates with high demands for vehicle uptime, with long-haul trucks covering extensive annual mileage over multi-million-mile lifespans. This intensity requires fail-operational capabilities with redundant systems for sensing, computation, and actuation that are designed into the vehicle from the outset, not added later. Building vehicles individually with artisanal processes becomes unmanageable when moving from small fleets to thousands of units.

Essential hardware for automated trucks includes redundant steering and braking actuators, backup power supplies, safety computers, and integrated networking. The Telemetry report states that these safety-critical systems require proper design validation, which cannot be achieved through aftermarket additions. A historical example involves an automaker proposing factory-installed custom modifications for an autonomous technology company rather than post-purchase installations.

The market for new Class 8 trucks in the U.S. is highly concentrated among four major manufacturers. Each of these manufacturers has established a partnership with or operates a subsidiary focused on autonomous truck technology. These original equipment manufacturers collaborate with major Tier 1 suppliers to source validated subsystems, leveraging their volume and relationships to optimize cost, performance, and reliability. Autonomous truck developers, often smaller companies, typically lack these established supplier connections and may face supply constraints and less favorable pricing.

Factory-built systems are also noted to simplify diagnostic and repair processes for service technicians. The economic case for driverless trucks is driven by fleet operating costs, where driver expenses constitute a major portion. It is estimated that autonomous trucks could significantly reduce the per-mile operating cost and operate continuously, potentially increasing profitability per vehicle. One company currently operates commercially in Texas with a partner and aims for a future date for fully driverless operation, contingent on safety validation and factory production.

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