Connect with us
Eaton-Electric-Vehicle-Transmission-NACV

Heavy-duty

Eaton to launch a heavy-duty transmission for electric commercial vehicles

Advertisement

Jason Morgan is the editor of Fleet Equipment. He has more than 14 years of B2B journalism experience covering the likes of trucking and construction equipment, real estate, movies and craft beer industries.

Power management company Eaton announced its eMobility business will launch an all-new four-speed transmission for heavy-duty electric commercial vehicles to meet growing demand in a number of segments, including pickup and delivery and port drayage in North America, China and Europe.

Advertisement
Click Here to Read More
Advertisement

The new transmission, designed for Class 7 and 8 commercial vehicles, is currently in the testing phase with major OEMs and is set to debut in 2022.

The transmission is the latest addition to Eaton’s growing eMobility portfolio of electrified vehicle (EV) transmissions and other componentry, which also includes medium-duty two- and four-speed models that are also currently in production with several OEMs.

“Electric buses and trucks need to be able to go up hills and run at highway speeds when they are fully loaded,” said Scott Adams, senior vice president, eMobility, Eaton. “Our solution is to expand the range of the motor by adding an EV transmission. With this addition, the vehicle can perform well on hills and efficiently at highway speeds with a smaller, less costly motor.”

The heavy-duty four-speed EV transmission solves the primary issue related to single-speed drives: contradictory requirements for high efficiency at top speeds and increased torque at launch and low speeds. Fine-pitch helical gears ensure a smooth, low-noise operation, while the Eaton Transmission Control Unit’s shifting strategy is designed for fast gear changes and maximum efficiency, which extend range and battery life.

Advertisement

Click here for all of our NACV coverage.

The transmission is based on traditional, robust and efficient lay shaft architecture typical of AMTs but is designed specifically for electric commercial vehicle applications. Unlike traditional commercial vehicle transmissions, Eaton’s four-speed EV gearbox does not have a clutch, and shifts are synchronized using the traction motor. It also operates at higher speeds than its traditional internal combustion gearbox counterparts, and gears are optimized for typical electric motor performance and power curves for maximum efficiency.

By providing higher output speed capability and torque range than a direct-drive system, the transmission enables the usage of a smaller, lighter electric motor for large commercial vehicles, which cuts down on the cost, a major buying point for commercial EV operators.

Advertisement

POPULAR POSTS

Sponsored Content

Business Intelligence Tools Monitoring & Analyzing M&R Data Keep Fleet Managers In Check

Sponsored Content

Keep your fleet running as efficiently as our engines.

Sponsored Content

The ‘S’ Factors

Sponsored Content

Avoiding Premature Bearing Failure

Connect
Do NOT follow this link or you will be banned from the site!