AISIN Technical Center of America (ATCA) will present a wireless torque measurement solution featuring TECAT Performance System’s WISER 2030 sensor system at the 2016 SAE World Congress this week in Detroit. The paper documents how TECAT’s WISER 2030 was used to measure automotive driveshaft torque data wirelessly without sacrificing any of the accuracy of conventional wired solutions.
Historically, driveshaft torque data has been obtained using slip rings. Slip rings, however, are expensive and require time-intensive driveshaft modifications for proper installation. In addition, the time and expense involved in field-servicing units are prohibitive. For these reasons, ATCA investigated a viable telemetry solution.
At the onset of this development activity, existing torque telemetry solutions had their own issues. In particular, they did not offer the same data resolution as slip rings; they lacked sufficient battery life for long-term, real-world testing applications; and they suffered from data drop-outs.
ATCA worked with TECAT Performance Systems to develop a torque telemetry solution that addressed all of these issues.
The paper co-authored by Joseph V. Gabniewicz and Michael Testani of ATCA and Dr. Douglas Baker, CTO and founder of TECAT, presents the development activity involved alongside real-world measurement data showing the results of both the slip ring and telemetry solutions.
TECAT Performance Systems was founded in 2010 by Dr. Douglas Baker, CTO and inventor of its torque telemetry system. TECAT’s WISER torque sensor provides fully processed data on torque, temperature, pressure and vibration directly from the source, while operating in real-world conditions. Output is wirelessly transmitted using a 2.45 GHz radio frequency paired to a base unit.
The WISER 2030 system is the latest release of TECAT’s low-cost, ultra-low power and extremely accurate torque sensor. The wireless system has the optional ability to measure 3-axis acceleration, barometric pressure and ambient temperature, all within a small footprint. This 2030 release also includes on-board data storage without PC or DAQ connectivity, and remote flash capability, which enables firmware upgrades without removing the system from the unit under test.
The WISER Model 2030 is comprised of three subsystems. The remote unit, shown above, consists of the data capture electronics, transceiver and battery. The base unit plugs directly into a PC USB port, and houses an antenna, transceiver, and up to two analog outputs. The WISER Data Viewer software is used for system configuration and calibration, live monitoring, and data logging.