Fering selects Turntide axial flux motors and inverters for its hybrid off-road vehicle

Off-road vehicle manufacturer Fering has chosen axial flux motors and inverters from Turntide Technologies for the parallel hybrid drivetrain in its vehicle platform, which Turntide says is built for long range, off-road capability and flexible deployment across multiple sectors. Turntide supplied an axial flux traction motor, a second motor for power generation, and the inverters that control them.

Turntide’s AF300S is rated at 73 kW of continuous power and 193.9 Nm of continuous torque, rising to 324 kW and 452.3 Nm in 20-second bursts, has a maximum speed of 8,000 rpm and operates at up to 850 VDC. Cooling takes place via an indirect liquid loop running water and ethylene glycol.

An axial flux machine runs its flux along the shaft axis rather than radially outward, so rotor and stator sit as parallel discs. The AF300S is 110 mm long and 333.8 mm in diameter and weighs 28.4 kg dry, a disc rather than the longer cylinder of a radial flux motor of similar output. That was Fering’s constraint, Turntide says: the propulsion system had to fit the vehicle’s existing architecture without compromising performance or capability.

Fering evaluated several axial flux motor suppliers during development, according to Turntide, and chose it for the performance and reliability of the motors and the support of its engineering team. Turntide’s application engineering group worked alongside Fering through vehicle integration and testing.

The two companies will now perform further drivetrain work, including development of a future electrified drive unit, and support for vehicle demonstrations and industry events.

“Fering’s vehicle platform is a good example of how hybridization can extend electrification into demanding vehicle applications,” said Brad Bell, Turntide’s Chief Commercial Officer.

Source: Turntide Technologies