Views: 87 Author: Site Editor Publish Time: 2020-11-12 Origin: Site
First-line TPMS solution providers are mainly chip-level providers, mainly providing core chips. For car owners, it is also necessary to understand the development history and products of the chip of the tire pressure monitoring system.
l The history of TPMS system can be traced back to World War II. Because of the wheel damage in the war, the Americans created the first generation of TPMS.
l In the following decades, TPMS sensor has been existing as a military product and it is the most primitive way of perception to remind the driver that the tire is out of condition.
l With the rapid development of LSI in the middle and lower parts of the 19th century, tire pressure sensor gradually changed from original perception to electronic and miniaturization.
l The appearance of 8051 single-chip microcomputer paved the way for its electrification.
l In the 1970s and 1980s, there were also products relying on ABS to measure tire pressure indirectly, which improved the public's understanding of tire pressure monitoring system to a certain extent.
l In the 21st century, many American enterprises made direct TPMS with 8051 as the core and launched it to the market around 2000. This kind of product is mainly made of separation elements.
l As the development of integrated circuit technology is still in its infancy, the product size is relatively large and the power consumption is not effectively guaranteed.
There are many chip manufacturers of tire monitor system in the early stage, because the core problem at the beginning is mainly the problem of pressure. With the increasing integration of scale circuits, many companies begin to consider integrating pressure, temperature and power management into one chip. Of course, the latter has always been different from the former in terms of price and product performance, which is an unchangeable market law.
From the data, domestic TPMS is not behind the developed countries. However, the domestic policy leads to TPMS tire pressure monitoring system is not sold in China. The main reasons include the following four points:
l The number of cars in China is not enough;
l The domestic automobile aftermarket is not mature;
l There is no standard for domestic loading plants;
l The technology is not mature enough.
The development of domestic TPMS chip is largely limited by the immature technology and the incomplete industrial chain. In the beginning, domestic tire pressure sensor chips were simply made of pressure sensor and temperature sensor, which was only equivalent to the technology level of foreign countries around 2000. It was not until 2012 that representative microchips appeared in China. Data show that there is still a big technical gap between its products and big brand products, but it is also one of the best in China!
It was not until 2017 that the chip of tire pressure monitor sensor without gravity sensing function was put on the market, which made up for the vacancy of domestic chips in the whole TPMS field to a certain extent. But in terms of technology, the gap between us and the international giants is still very large.
