Attracting Tomorrow TDK
TDK Developing Technologies


Self-Powered Tire Sensing / Telemetry Solution

InWheelSense is a self-powered sensing solution for gathering and processing data from the wheel/tire and road interface. It is a multi-faceted capability enabled by a few key capabilities: sensing, edge compute, connectivity and energy harvesting. This innovative platform is capable of delivering real time data analytics and information obtained directly from the tires/wheels, either to the vehicle/driver and/or cloud. The data collected provides analytics such as traction, slip angle, turn angle, tread wear, and much more to enable fleet management, vehicle and driver performance, enhanced driver assist, safety capabilities and ADAS.

As the world moves rapidly toward utilizing and depending on electric vehicles, last mile services, various modes of Mobility as a Service and ultimately Autonomous Vehicles, information and intelligence from systems and sensors in vehicles becomes increasingly critical to the safety, efficiency and success of these vehicle and transportation initiatives. As they have done for many years, innovators in the automotive industry will utilize advancements in sensors and information / intelligence from vehicle subsystems to develop and improve safety and Advanced Driver Assistance Systems (ADAS) to support the realization of these transportation initiatives and eventually, the highest levels of vehicle autonomy.

The significant increase in data from sensors that have been integrated into modern vehicles enables continued development of important safety, efficiency and ADAS capabilities. However, in the sub-system where there is an abundance of data from the wheel / tire interaction with the driving surface, the information available has been limited to tire pressure and derived information from indirect or direct Tire Pressure Monitoring Systems (TPMS).

Because TPMS and tire mounted sensors utilize a small battery with a limited amount of power, there is an on-going challenge to enable capabilities beyond what’s currently available in TPM systems. Capabilities such as localized compute and processing operations of rich and detailed data, and communication of this information at the speeds that will be necessary for ADAS and higher levels of Autonomous Vehicle capability will require significantly more power than currently available for TPMS and other tire mounted sensors. In addition, there is the challenge to integrate the various component/module capabilities to produce a system that is optimized for accuracy and efficiency.

InWheelSense is a self-powered sensor system that integrates multiple sensing capabilities along with “perpetual” power supply, edge compute and high rate connectivity into one system. This enables InWheelSense to gather data and product analytics such as traction, acceleration, slip angle, inertial navigation and many more without the need for battery replacement. These features enable InWheelSense to provide value to fleet management, driver/ vehicle analytics as well as accurate information at high communications rates for augmenting driver assist / safety capabilities and facilitating increased levels of ADAS.

Benefits of InWheelSense

  • TDK high sensitivity sensor technology
  • Multiple sensors for high fidelity analytics
    and tire intelligence
  • Direct sensing from the tire and road interface
  • Integrated and optimized self powered sensor system
  • SDK/API to enable and support integration with customer Tire Intelligence and Information Apps
    and Service Infrastructure / Cloud
  • TDK InWheelSense App*
    (* basic application for customer reference)

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