The Tactile Feedback Device (TFD®) steering unit is a key component of fully electric and electro-hydraulic Steer-by-Wire (SbW) systems. These devices provide an integrated solution that combines bearing support, steering position sensing, communication and continuously variable resistive steering torque, delivering high-fidelity tactile feedback and maximum control to the operator. The resistive steering feedback is fully programable, with custom algorithms available based on equipment operating conditions.

The LORD TFD® is a multifunction unit, providing both incredibly smooth steering feel (through the use of Magnetically Responsive (MR) technology) and reliable and redundant steering control signals (including CAN functionality). Our TFD steering unit is maintenance free and will never require inspection or adjustment during the expected service life. Also, there are very few moving parts in the TFD which greatly enhances durability. All of this adds up to a compact, robust, low power, easy-to-install, and maintenance-free design.

Where are Tactile Feedback Devices used?

We have been a pioneer in SbW steering units since 1999, when the first device began production on a forklift truck application. With more than half a million devices in the field, Parker LORD has a long history of providing reliable and safe TFD steering units to OEMs in various markets including: Marine (Helm Controls), Material Handling (Forklifts), Turf (Greens Mowers), Off-Highway (Agricultural Tractors and Construction Equipment) and Small Industrial Vehicles (Floor Sweepers, Zamboni, etc.).

Features & Benefits

• Tunable Steering Settings. An integrated controller uses inputs from the CAN-bus and proprietary algorithms to adjust how the steering system feels to the operator during various operating conditions, giving OEMs and vehicle integrators greater design freedom and reduced development time.
• Improved Operator Ergonomics. LORD patented magnetically-responsive (MR) materials provide smooth consistent resistive steering torque, giving the operator a greater sense of connectedness with the vehicle during steering events.
• Integrated Safety. Dual isolated channels with two sensors per channel provides safety redundancy.
• Robust Design. Compact, maintenance free, easy-to-install, functional under a broad set of operating conditions and environments.