AutoChips Starts Production of its Wireless Tire Pressure Monitoring System Chipset

AutoChips Inc., a wholly-owned subsidiary of NavInfo, in partnership with X-FAB Silicon Foundries SE, has successfully initiated volume production of a highly advanced wireless Tire Pressure Monitoring System (TPMS) chipset. The automotive-grade AC5111 chipset, is a highly integrated AEC-Q100-compliant solution with six functional elements- including an enhanced low power consumption microcontroller, a pressure sensor, a temperature sensor, and an accelerometer, as well as Radio Frequency (RF) and Low Frequency (LF) functions. It is China’s first self-designed, full-featured, single-chip TPMS solution to reach mass production.

Studies have shown that 70% of highway traffic accidents in China are caused by tire punctures. When the air pressure of the tire is 10% lower than the normal value, its lifespan is reduced by 15 to 20%, and vehicle fuel consumption per kWh increases by 260ml. Based on these figures, China’s Standardization Administration has made it mandatory for all vehicles built from January 2020 onwards to incorporate TPMS technology.

High quality, high reliability, and comprehensive functions are regarded as the core aspects of competitiveness for AutoChips, and these are enabling the company to become China’s new force in automotive semiconductor products. As the only domestic TPMS chipset to integrate six core technologies, test results have shown that the AC5111 can match competitors’ products in terms of performance and power consumption, and having access to X-FAB’s MEMS expertise has been absolutely pivotal here.

The automotive-grade AC5111 chipset has been fully designed in-house by AutoChips’ skilled engineering team and is being manufactured at X-FAB’s state-of-the-art MEMS facility, in Erfurt, Germany. Orders for the MEMS-based chipset equating to tens of thousands of pieces have already been received.

AutoChips’ next-generation TPMS chipset is already under development, along with a series of other product innovations.