Silent TPMS - Tyre Pressure Management System
TPMS monitors the air pressure and temperature inside pneumatic tyres on various types of vehicles. It reports tyre pressure and temperature data in real time to the driver of the vehicle, via a gauge, a pictogram display, or a simple low-pressure warning light. There are two types – direct (dTPMS) and indirect (iTPMS), installed in the OEM (factory) level as well as an aftermarket solution.
The prime social objective of TPMS is to help avoid traffic accidents and reduce pollution levels by a better use of fuel. From 2008 in the USA, and from 2012 in the EU all new passenger car models released must be equipped with a TPMS; and from November 2014 all new passenger cars sold in the EU must be equipped with a TPMS. Commercial vehicles do not, as yet, require TPMS.
Silent TPMS starts with a unique identity for the tyre which serves as a Certificate of Provenance that lets people track and trace its physical location at a given moment in time throughout the supply chain, from manufacture to distribution, warehousing, usage, repair, retread and recycle at the end of its usable life. Paired with pressure and temperatue sensors, digital tracing and sensing provide a low cost route to improve supplier efficiencies and integrate with a whole ecosystem of management systems.
What is driving demand?
- The connectability of tags, sensors and controls (Internet of Things)
- Falling cost of tags and sensors, rise of the smartphone, ubiquity of big data
- Manage tyres properly to increase service life by up to 30%
- Reduce legal liabilities (20% of truck accidents caused by bad tyres)
- Reduce premature damage (€90 per tyre according to Bridgestone’s research)
- Squeeze value out of the tyre through its life to recycling (the Circular Economy)
- The transformation of tyre makers, OEMs and distributors into service companies
- Public policy regarding health, safety, fuel economy, emissions, climate change
- Autonomous driving, especially for truck fleets.
Who is interested in TPMS?
- Tyre Makers
- OEM Truck & Car Makers
- Fleet Owners
- Re-moulders & Re-treaders
- Fleet Management System providers
- Government Agencies
What do they gain?
- More competitive offering
- Lower operational costs
- Greater productivity
- Reduced loss/risk/liability
- Higher value at end of life
- Higher margins
- Improved public health
- More control over climate change
Silent TPMS Characteristics
- Designed for tyres of both light and heavy vehicles
- RFID Tag fixed as an inlay or patch to identify and track the tyre
- Sensors can be installed either inside or outside the tyre
- Sensors measure both tyre pressure and tyre temperature
- Sensors transmit data through Bluetooth BLE and/or RF 433MHz
- Sensors can Mesh together to extend range
- Data sent to onboard telematics enabled Hub
- Open API for integration with TMS, FMS, ERP
- App for display of current status and history for in-field monitoring
- Dashboard for management of tyre performance during its lifetime
- Champion of the Circular Economy
Silent TPMS Components
- RFID Tags for each tyre (Inlay or Patch)
- Pressure and temperature sensors (BLE/433 External or Internal)
- Industrial RFID readers sending UHF signal to Tags
- Silent Hub to receive data from sensors and transmit to Cloud
- Silent Mesh to check sensor status and relay connect those out of range (BLE)
- Smartphone App to read Tags, add geolocation, time, user data, send to Cloud
- Smartphone App to pair tags with sensors, read sensor data, send to Cloud
- Cloud databases for storing RFID and sensor data sent
- Dashboard for managing tyre history, current status, analysis, forward planning
- Optional - Truck RFID Dongle
- Optional - Rugged smartphone for in-field personnel to use