Link Mfg. has unveiled a family of intelligent auxiliary suspensions to be available in 2022.

Testing with 8K, 10K, 13.5K and 20K ROI auxiliary suspension systems is underway.

The intelligent systems build on the Road Optimized Innovation (ROI) technology that Link first introduced in its ROI Cabmate Cab Suspension, and will automatically deploy or retract the suspension as needed. Unlike traditional auxiliary axles, the suspensions determine the load they must carry and automatically adjust to accommodate the weight.

Working with the ABS, the suspension will also sense a loss of surface friction – caused by factors like snow or mud – and will reduce the pressure to shift the required traction to the drive axles.

Human error is common when using traditional auxiliary suspensions, the company notes.

“If an auxiliary suspension system is engaged when not needed, it can cause the tires to drag, or ‘scrub,’ negatively affecting tire wear, gas mileage and maintenance intervals,” said Mike Leakey, vice-president of sales and marketing for Link Mfg. “Conversely, if auxiliary axles are not deployed when needed, the vehicle may not comply with local bridge laws, and the vehicle and its occupants may even be exposed to dangerous mechanical forces.”