Hierarchical control concept with the continuous development of the intelligent load and increasing demand for sensors, and SoC type of product because of its low cost, small size advantage, is the solution to adapt to this development program. Infineon Technologies (China) Limited’s automotive electronics business, said Li Shiming, Senior Marketing Engineer, “a new generation of Infineon SP37 Tire Pressure Monitoring System (TPMS) single-chip solution to conform to this trend, the controller sensing unit, RF transmitter, low-frequency receiver and power supply modules integrated in a chip, the requirement to auto-on-chip. “
TPMS is a comparison of the Chinese market speculation of a concept of fire, but so far only the United States is the world’s law enforcement TPMS country. Since September 2007 all in the United States after Sell The maximum design total mass not exceeding 4536kg of four passenger cars and commercial vehicles are required to install TPMS. Although the voice of TPMS in China has been a long time, but the standard is postponed again and again, the current application is still limited to certain high-end models, but these have not prevented the semiconductor manufacturers a huge investment in this area.
The industry agree that the next TPMS transmitter module will be highly integrated, single, wireless passivity direction. With TPMS IC market on the high integration and high reliability requirements, there is now testing the physical quantities of the required MEMS Sensor With the MCU, RF triple the next-generation TPMS Sensor Module. Such as Freescale’s TPMS solution MPXY8300, is the capacitive pressure sensor, temperature sensing components, MCU, RF, acceleration sensors and a wake-up function of the interface circuit, all integrated in one chip, and uses Freescale’s ultra-small package (SSoP). Ultra-small size and enhanced media protection feature makes the program particularly suitable for the tire valve or install.
Hierarchical control concept with the continuous development of the intelligent load and increasing demand for sensors, and SoC type of product because of its low cost, small size advantage, is the solution to adapt to this development program. Infineon Technologies (China) Co., Ltd. Car Electronic Senior Marketing Engineer Business Unit, said Li Shiming, “Infineon SP37 Tire Pressure Monitoring System the new generation (TPMS) single-chip solution to conform to this trend, the controller, sensing unit, RF transmitter, low frequency receivers and Power supply Integrated in a chip inside, reached car-on-chip requirements. “
Automotive design for steering precision is an important consideration, Infineon successfully giant magnetoresistance (GMR) effect of integration into standard CMOS semiconductor manufacturing process. “In the electric power steering system, the Infineon technology-based integrated GMR (iGMR) of the sensor chip set and based on the linear Hall sensor chip technology can be perfect to achieve the perception of steering angle and torque.” Li Shiming said. Infineon’s sensors can accurately measure the abnormal 0 to 360 of steering angle, consists of two GMR full-bridge, a temperature sensor, two ADCs, a number of Regulators , Filter, and run the process can continuously monitor the internal mechanism of these components. TLE5010 sensor chip with two digital angle components?? Sine and cosine functions. Sensor through the SPI interface, 8-bit microcontroller to use these components to calculate actual angle signal.
Transmission-type sensor is also known as intermittent sensor, consisting of a face-installed infrared emitter and detector, a small gap between the two, when a similar round of this object code transmitter and detector through When the gap between device will block the beam, sensors can detect whether an object exists. Vishay’s Surface Mount Transmission (intermittent style) photoelectric sensor TCPT1300X01 and TCUT1300X01, reached the level of the junction temperature of +145 , -40 ~ +125 operating temperature range and moisture sensitivity level 1 (MSL1).
Radar technology is the design of innovative driver assistance systems, to avoid the key to traffic accidents. Automotive radar systems can send radio frequency electromagnetic waves, these electromagnetic waves encountered the vehicle in front or Other Objects can be reflected back, the radar chip is responsible for sending and receiving these radio signals, and through background processing. Background assessment to determine the distance between vehicles and other vehicles and other vehicles speed. Therefore, when the forecast to take place when the vehicles collided, seat head restraints and seat belts will be ready ahead of time, to help reduce the impact of the accident. At the same time, the same signal is also sent to the brake system or airbag system. Infineon chip RXN7740 radar is suitable for 76-77GHz frequency range of highly integrated front-end chips, including the oscillator function block, suitable for power amplifier and four mixers for multiple antennas. Separate these functions with the current radar system than the radar system will enable manufacturers to reduce the size of a quarter of the radio frequency module for more than 20% reduction in system cost.
