San Francisco startup Humble Robotics has raised USD 51 million in a Series A round to start customer pilots of its cabless, electric Humble Hauler on port and warehouse routes, FreightWaves reports. Obvious Ventures led the round, and existing investors Eclipse and Energy Impact Partners took part.

The round brings the company's total funding to USD 75 million, about six months after it came out of stealth with a USD 24 million seed round. The company says it will spend the money on pilots with customers, testing and validation, early production and a wider range of vehicles on its modular platform.

Founder and chief executive Eyal Cohen is betting that short, repeatable freight runs such as port drayage and shuttles between plants and warehouses are a more controlled setting for driverless electric trucks than open highways.

Source: FreightWaves