BANF’s iSensor Improves Autonomous Vehicle Fleet Efficiency and Safety
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Every year, the logistics industry loses billions to a quiet crisis that extends far beyond headline-grabbing highway blowouts. While catastrophic tire failures grab the headlines (and account for a terrifying 6% of all truck accidents), the real story is the accumulation of inefficiencies and unseen risks. One of the realities of modern trucking is that tires are the only part of the vehicle touching the road, yet they provide almost no usable feedback. Traditional TPMS can’t tell you if alignment is off by a degree, if a tire is not optimally inflated, or if a lug nut is about to vibrate loose. These blind spots, coupled with the growing need for precise ground-truth data for applications like autonomous driving and stability control, can only be addressed by bringing advanced electronic components to what many consider the “last analog domain.”
Physics-driven constraints mean battery-powered solutions have been impractical. Coin cells can’t survive frequent high-rate data transmission (accelerometer and TPMS signals in the kHz range quickly drain a coin cell’s capacity), and conventional wired connections are impossible on a rotating wheel. Consequently, TPMS systems remained primitive, offering no predictive capability or granular real-time insights.
The BG22 Bluetooth SoC is Integral to TPMS Innovation
BANF, a leading intelligent tire system company, is rewriting this narrative with their iSensor. By unlocking the enormous amount of data generated by tires in motion, the company isn’t just preventing blowouts; it’s delivering a massive boost in efficiency and preventing the full spectrum of tire-related accidents. Building it required solving a physics problem that has stumped engineers for decades: how do you keep a power-hungry, high-speed processor running inside a spinning tire without a battery that dies every few months? The answer lies in BANF’s proprietary wireless power solution and its deployment of the BG22 Bluetooth SoC, specifically designed for high-volume, battery-powered products.
The Challenge
Tires are a brutal environment for electronics. Heat, extreme centrifugal forces, and constant mechanical stress make it difficult to bring modern connectivity and sensor technology to tire pressure monitoring systems (TPMS). As a result, valuable tire data, including friction, load, and alignment, goes uncollected, limiting safety and efficiency.
The Solution
BANF’s iSensor combines proprietary, continuous wireless power delivery with the ultra-efficient Silicon Labs BG22 to capture kHz-level real-time data on 3-axis acceleration, pressure, temperature, and tread depth.
The Result
BANF’s intelligent tire sensors deliver immediate results, including up to a 20 percent boost in fuel efficiency through real-time (20 ms–100 ms) tire alignment and pressure optimization, and the potential for zero-accident operation by detecting loose lug nuts, low-friction roads, and dangerous tread wear before failures occur.
Continuous, High-Frequency Tire Intelligence Through Infinite Power
BANF's breakthrough hinges on proprietary wireless charging technology. BANF’s Smart Profiler uses magnetic resonance to beam power by connecting directly to the vehicle’s battery or fuse box and is installed on the mudguard/flap or fender. This "infinite power" approach makes it possible for the iSensor, which is embedded in the tire’s inner liner, to run continuously, capturing data thousands of times per second. This is possible because, unlike other wireless charging standards, the Smart Profiler does not require close static contact and instead employs a proprietary architecture specifically optimized for a rotating tire environment.
By enabling continuous power delivery without on-board batteries, the iSensor can sample at thousands of times per second, a 2,400x increase in data density compared to traditional TPMS. This increase in sampling rate unlocks entirely new capabilities: precise slip angle detection, wear pattern analysis, load estimation, and real-time road surface classification. More data points mean richer feature extraction, superior resolution, and significantly higher accuracy in predictive models.
This approach delivers several advantages, including competitive pricing with aftermarket TPMS solutions and the ability to support dual-wheel commercial vehicles. Conventional systems struggle with signal interference in these configurations, often failing to reliably distinguish between adjacent sensors. BANF's architecture mitigates this by pairing each tire with a dedicated Smart Profiler, eliminating auto-location errors.
Processing, Security, and Performance at the Edge Under Extreme Conditions
The BG22 Bluetooth SoC is able to manage this torrent of data with extreme energy efficiency and the RF performance needed to blast critical data through the tire's steel belts. Engineered for ultra-low power operation and exceptional RF performance, the BG22 reliably pushes critical safety data through steel belts and dense rubber, an environment that acts like a Faraday cage. Its ARM® Cortex®-M33 core enables real-time edge processing, allowing the system to identify precise vibration signatures of mechanical failure or changing road friction without transmitting raw noise. Combined with Silicon Labs’ Secure Vault™ technology, the BG22 ensures this data remains protected from tampering—an essential requirement for safety-critical and autonomous vehicle (AV) fleets.
Why the BG22 Bluetooth SoC?
Robust RF Performance:
The BG22’s superior receiver sensitivity ensures that critical safety alerts (like a loosening lug nut) reach the Smart Profiler with near-zero latency, even at highway speeds.
Edge Processing Power:
The BG22’s ARM® Cortex®-M33 core allows BANF to run complex algorithms directly on the chip. Instead of sending raw noise, the sensor processes vibration data locally, identifying specific "signatures" of mechanical failure or road friction.
Security:
With Silicon Labs’ Secure Vault™ technology, the data stream is protected against tampering, a critical requirement for AV fleets where cybersecurity is paramount.
A New Approach to TPMS for the Autonomous Era
For autonomous vehicles, tire intelligence is non-negotiable. A driverless truck can’t feel a skid, a flat, or deteriorating traction. It needs data, and BANF provides a digital sense of touch for safer and more efficient autonomous operation. The broader impact extends beyond autonomy. By pairing BANF’s sensing architecture with the reliable, secure connectivity of the BG22, the tire is transformed from a passive component into an intelligent and profitable system on the vehicle. For modern fleets, the iSensor + Smart Profiler system is the difference between reactive risk and proactive control, boosting safety, maximizing efficiency, and turning every mile into better decisions.