Installed in the tire sensor/transmitter module (referred to as the sensor), through the bridge electronic air pressure and temperature sensing device, accurate sensing, measuring the air pressure, temperature, and air pressure, temperature signals into electrical signals, and then through the wireless transmitter transmitter signals installed in the driver's cab on the receiver, and digital real-time display in the monitor, when any tire air pressure, temperature, and the air pressure, temperature, and the air pressure of the tire, the air pressure, the temperature of the tire, the air pressure, the temperature of the tire. When the air pressure and temperature of any tire exceeds the set normal area value, it will alarm and remind the driver through sound, light and electricity.
The domestic TPMS brands such as Pioneer, Noni and so on.
At present, TPMS is mainly divided into two types, one is Wheel-Speed Based TPMS (referred to as indirect TPMS), this system is through the automobile ABS system of the wheel speed sensor to compare the difference in rotational speed between the tires, in order to monitor the purpose of the tire pressure, the main disadvantage of this type of system is not able to more than two tires out of air at the same time, and the speed of more than 100 km / h. The main disadvantage of this type of system is not able to more than two tires out of air at the same time. The main disadvantage of this type of system is that it is not possible to judge the situation where two or more tires are out of air at the same time and the speed exceeds 100km/h.
The other type is Pressure-Sensor Based TPMS (direct TPMS), which uses pressure sensors installed in each tire to directly measure the tire pressure and display and monitor the air pressure of each tire, and the system will automatically alert the police when the tire pressure is too low or there is leakage.
In this year's new car introductions, many European automakers have also equipped their models with direct TPMS, including Germany's BMW's Z8, France's Citro?n's C5, Britain's Aston Martin's supercar Vanquish, the Lincoln Continental, Pontiac's flagship Bonneville SE, etc., and the latest improvements to the Mercedes-Benz S-Class.
Most domestic automakers have not yet released any news on China's accession to the WTO. However, after China's accession to the WTO, with the requirements of internationalization, I believe that domestic manufacturers will keep up with the pace. With the continuous development of China's economy, more and more cars into the ordinary family, driving safety, road traffic problems will be more and more attention by the management bodies and motorists, China now has more than 50 million cars, this huge automobile market demand for safety products will become more and more urgent, therefore, according to the industry experts predicted that the TPMS, the third largest ABS, airbags after the safety system will also be rapidly developed in China.
Shanghai Paulowne Industry & Trade Beijing Branch 010-86503570 68483704
Tire Pressure Safety Monitoring System (TPMS) is a "proactive" type of automotive safety protection system, which provides early warning of dangerous signs in the tires before they appear to avoid major traffic accidents. On November 1, 2000, the U.S. Congress enacted a law requiring that all new cars leaving the U.S. factory after November 2003 should have TPMS as a standard feature one after another. At the same time, the European Union has also made similar provisions, so people call TPMS after ABS, airbags after the third major automotive safety systems.TPMS main functions:
1. Real-time monitoring function.
2. High/low pressure alarm function.
3. Fast/slow air leakage alarm function.
4. High temperature alarm function.
5. Tire simple positioning function.
6. One-touch function.
7. Ultra-low energy consumption function.
Market Unit Price: 1880
Member Unit Price: $1650
About the MPXY8300 TPMS Solution
Freescale's intelligent MPXY8300 system provides accurate, real-time tire pressure measurements through the use of direct monitoring at each wheel. In addition, Freescale's single-package solution has an integrated accelerometer for motion monitoring. The system can be programmed so that measurements are sent at certain tire rotation speeds or even when the tires are not rotating.
The MPXY8300 system-in-package device has some of the following key components:
Pressure and temperature sensors to compensate for tire pressure 8-bit MCU with 512b RAM, 16 KB flash memory XZ-axis accelerometers RF transmitter Low-frequency inputs to receive diagnostic commandsThe MPXY8300 combines a number of low power technologies that can extend the life of TPMS batteries to more than 10 years. For example, the capacitive sensor technology used in the MPXY8300 supports ultra-low power consumption, which extends battery life.
"Freescale's continued innovation within the TPMS technology space enables higher levels of integration and greater functionality to improve driver safety and vehicle performance," said Paul Grimme, senior vice president and general manager of Freescale's Automotive and Standard Products Division: "The MPXY8300 TPMS sets an industry benchmark for integration, high performance, battery life and total system value. Our capacitive sensors have the potential to become the leading pressure sensor technology for smart TPMS solutions."
MPXY8300 System Features
Highly Integrated System-in-a-Package Device Pressure Sensor with Two Pressure Range Options:o Passenger Vehicles: 100-800 kPa
o Heavy Duty Trucks: 100-1500 kPa
Capacitive Sensor Technology Enables Low Power Consumption Motion Monitoring Accelerometers TPMS-specific power management achieves more than 10 years of battery life 8-bit MCU with 512b RAM, 16 KB Flash, and multiple low-power timing functions RF transmitter with integrated charge pumps at 315/434 MHz Multiple baud rates and modulation mechanisms 2-channel LF input with monitor/decoder Supply voltage measurement Low-power wake-up timer and periodic reset driver for low-frequency oscillations Integrated filter design enables media protection in harsh vehicle environments 20-pin full SOIC package -40°C to +125°C operating temperature rangePricing and Availability Information
Currently. MPXY8300 samples are available to select customers, with volume availability expected in the second quarter of 2008.
Suggested retail unit prices (USD) per 10,000 units are:
$6.60 for the MPXY8300A for cars with XZ-axis accelerometers $5.48 for the MPXY8300B for cars with Z-axis accelerometers $5.22 for the MPXY8300C for cars without accelerometers. MPXY8300A for heavy-duty trucks with XZ-axis accelerometers retails for $9.64 MPXY8300B for heavy-duty trucks with Z-axis accelerometers retails for $8.00 MPXY8300C for heavy-duty trucks without accelerometers retails for $7.63Freescale plans to introduce development tools in the second quarter of 2008. The tools will include a number of firmware drivers to accelerate application development. Key advanced software commands include reading pressure, acceleration, temperature, battery voltage and interfaces with RF transmitters. /qcyp/xpsd/0709/579101.html
Introduction of the development of China's major tire pressure monitoring system (TPMS) manufacturers
3.1 Nanjing Taisheng (CuteTyre)
3.2 Shantou Dongqi (Tonki)
3.3 Foshan Anlixin / Foshan Langjie ( Topchek)
3.4 Shanghai S&T
3.5 Henan Xuecheng
3.6 Shanghai Taihao
3.7 Shandong Tai'an Mingtai (iNTEK)
3.8 Jiangxi Kayuan (kysonix)
3.9 Shanghai Qunying Electronic
3.10 Beijing Andun Automotive Electronics
3.11 Hong Kong Noni Electronics Co.
3.12 Hangsheng Electronics
3.13 Tonghua Transcend