Thomas Built Buses, a subsidiary of Daimler Truck, has announced the launch of the second-generation Saf-T-Liner C2 Jouley battery-electric school bus. The second iteration of the Jouley, which was originally introduced in 2017, incorporates several customer-driven improvements and technological advancements.
At the core of the second-generation Jouley is the 14Xe eAxle from Accelera by Cummins, an all-in-one unit that integrates the motor, two-speed transmission, disc brakes and rear-drive gear set into one package mounted on the rear axle. This eliminates the need for a traditional driveshaft, which Thomas explains makes the drivetrain lighter, more efficient and less complex. The streamlined design of the eAxle simplifies maintenance by reducing the number of moving parts. The eAxle, coupled with Accelera’s ELFA inverter, delivers power directly to the wheels, enhancing acceleration and torque for a smoother ride.
Accelera’s eAxle enables shorter wheelbase architectures. The second-generation Jouley offers a new 219-inch wheelbase, which improves the overall maneuverability of the vehicle.
“The 14Xe eAxle elevates expectations for performance, efficiency and serviceability, setting a new standard for the industry. School buses are an ideal application for electrification,” said Brian Wilson, General Manager of eMobility for Accelera.
The second-gen Jouley is equipped with an 800-volt Proterra battery system. “The higher voltage along with the eAxle makes it ideal for diverse terrains, including hills and mountains,” Thomas explains. “This upgrade also supports the integration of additional components like air conditioning, heaters and other essential features without compromising performance.”
The new Jouley features several enhancements designed to streamline diagnostics and repairs. A new 12-by-12-inch toe board floor access panel allows direct access to high-voltage junction box connectors without removing the battery packs. The body heating loop surge tank has been relocated to the left side of the bus, providing easier access.
A new LCD digital dash brings the bus into line with current automotive technology, and offers drivers a wider range of visual information, including diagnostics and operational data. Future updates can be implemented through software alone.
“With features that enhance efficiency, performance and serviceability, the new Jouley delivers unmatched value for both current electric bus operators and new adopters who are ready to embrace cleaner, smarter solutions,” said T.J. Reed, President and CEO of Thomas Built Buses.
Production of the second-generation Jouley in the 219-inch wheelbase version has already begun. Additional wheelbase options will arrive in 2025.
Source: Thomas Built Buses