Motorsport TPMS Stack
- Category: Temperature & Pressure
- Published: Sunday, 19 April 2009
Stack have customised Transense TPMS technology for Motorsport applications.
Accurate tyre pressures are a proven performance enhancer, delivering consistent performance advantages in all levels of motorsport. Dynamic tyre pressure monitoring while out on the track allows the team to optimise tyre performance over the whole lap and whole run.
Stack's Batteryless Tyre Pressure and Temperature Monitoring System (TPMS) completely re-defines tyre pressure monitoring in motorsport. Based on patented SAW sensor technology, the problems associated with mounting batteries and complicated electronics in sensors on wheels have at last been completely eliminated.
Stack use, under exclusive licence for Motorsport, Transense Technologies' patented Surface Acoustic Wave (SAW) sensor technology which offers wireless, batteryless and compact operation. SAW Sensors are passive (no power required), wireless, low cost, rugged, and extremely small and lightweight, making them well suited for measuring pressure, temperature & torque (strain) in moving objects (e.g. tyres, drive shafts etc.). These characteristics offer significant advantages over technologies such as capacitive and piezoresistive sensors, which require operating power and additional electronics to make a wireless connection.
A SAW pressure & temperature sensor can weigh <3g, with a resolution of 0.1 psi, and can be easily integrated into a racing wheel with excellent results. These systems enable the user to measure the pressure in each tyre up to 20 or more times per second. These higher sampling rates can be used to improve chassis set-up, as well as provide an early prediction of tyre failure.
Each wheel sensor comprises of a 2mm thick x 12mm diameter SAW pressure/temperature sensor, an RFID tag and an antenna, all in a 16mm diam. x 14mm cylindrical housing.
Installation: Each wheel sensor is mounted internally on the wheel rim or valve, or externally on the valve stem (specify sensor type required at time of ordering). The Interrogator Module is mounted in a convenient location on the vehicle, and 4 patch antennas are each mounted locally to each wheel (within approx 0.5m of the wheel), and connected to the Interrogator module by RF cable. The CAN data output can be connected to any standard data acquisition or driver display system supporting CAN.
Operation: The interrogator module takes readings of tyre pressure and sensor (air) temperature from each wheel sensor continuously at a pre-defined rate between 1Hz and 10Hz. Pressure and temperature data for each wheel is output on CAN bus, with user configurable CAN-ID messages.
Sensor weight: <3g
Module Dimensions: 100mm x 70mm x 15mm; 140g
Max no. of channels: 1 to 4 channels from single interrogator module
Ouput Options: CANbus / Dash Display / Data -Logger
Installation Options02/02/2009 Wheel rim or valve mounting
Resolution: 0-45psi with 0.1psi (other ranges available)
Sampling Rate: 1Hz, 5Hz, or 10Hz sampling
Parameters Measured: Air Pressure & Temperature
Real Time Telemetry Interface Available as Option
Power Supply: No electronics or battery inside wheels
For more information: www.stackltd.com