ZF unveils electric vehicle drive with 30,000 rpm motor
ZF has introduced an electric vehicle drive that spins the motor up to 30,000 rpm. The company claims a nearly 25% reduction in the system's weight and size, as well as halving the consumption of magnets.
The High Revolution Drive combines the electric motor, power electronics, and transmission into a single housing. Unlike the Mercedes-Benz solution, the braking mechanisms are not integrated into this design.
Compared to the ZF Select drive, which is rated for 18,000 rpm, the new system is expected to be nearly 25% lighter and more compact, while the mass of magnets in it is reduced by half. The stated efficiency is approximately 93%.
The high rotational speed allows comparable power to be achieved with a more compact motor. A gearbox then reduces the speed and increases the torque transmitted to the wheels. The demonstrated version uses a gear ratio of about 18:1, with a maximum power output of 268 hp and wheel torque of 3,500 Nm.
According to ZF's plans, the production version will deliver between 200 and 268 hp and will be compatible with 400V and 800V electric platforms. The company aims to retain the modular architecture of the Select system to simplify installation and reduce development and production management costs.
ZF is already in talks with automakers, and the drive is scheduled for release in 2030. It has not yet been announced which electric vehicles will receive it. The company also did not specify whether the stated characteristics will be maintained in the production version or if cost reductions will lead to lower prices for customers.
