THK’s original cutting-edge automotive components are crafted for electric vehicles.
The components we have developed, such as our Variable Magnetic Flux In-Wheel Motor, Stealth Seat-Slide System, and Active Suspension, incorporate THK’s advanced technology to enhance driving comfort, control, and stability for a new mobility-oriented society.

EV向け先進技術

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THK-original technology! Components for the latest in EV

Stealth Seat-Slide System: SLES

Stealth Seat-Slide System: SLES

An LM Guide is installed on the inside of the seat and the connector on the floor. By sliding with a dedicated actuator, a long stroke can be achieved even in a compact installation area.

Variable Magnetic Flux In-Wheel Motor: enemo

Variable Magnetic Flux In-Wheel Motor: enemo

This inner rotor-type in-wheel motor increases reliability due to driving the left and right wheels independently. In addition, both high-torque and high-speed rotation are enabled thanks to a variable magnetic flux system that utilizes a highly rigid THK ball screw/spline. Furthermore, assembling the THK Curved Guide into the rear steering enables four-wheel steering, which features a large steering angle and contributes to the ideal driving line.

Electric Service Brake: ESB

Electric Service Brake: ESB

This system controls four brakes independently through bi-wiring (electric control). It contributes to significant weight reduction and a compact size by utilizing a highly rigid THK ball screw inside the actuator.

Active Level Control Suspension: ALCS

Active Level Control Suspension: ALCS

This system enables vehicle height adjustments and stability control according to the roughness of the road by operating a THK ball screw/spline. It lowers the height of the vehicle when driving at high speeds to reduce air resistance, and it improves power supply efficiency when using contactless charging. It can also raise the height of the vehicle when off-roading or when driving over uneven surfaces.

MR Fluid Active Damper Tube: MRDT

MR Fluid Active Damper Tube: MRDT

THK offers seismic isolation technology, with a lineup of rotary dampers that utilize ball screws and a viscous element that absorbs and dampens tremors. By combining this product technology with MR fluid, the damping power of the suspension can be controlled electronically to absorb vibrations, and it can be used in conjunction with the ALCS, which controls vehicle height.

Contactless Power Supply: CLPS

Contactless Power Supply: CLPS

Through the DWPT (dynamic wireless power transfer) method, a power transmitter is embedded in the ground, and a power receiver is installed in the vehicle. Lowering the height of the vehicle with the ALCS increases charging efficiency, so power receivers are expected to be smaller and more lightweight. With this method, driving distances can be increased even with shortened charging times and fewer batteries in vehicles.

The LSR-05 prototype EV utilizes THK automotive components

THK debuted the LSR-05, a working EV prototype that incorporates our cutting-edge automotive components for electric vehicles, at the Japan Mobility Show 2023 held at Tokyo Big Sight on October 25, 2023.

Contact information

Marketing & Public Relations Unit, THK CO., LTD.
E-mail:thk-sp@thk.co.jp