"Green" Trend Pilot Vehicle Relay Speeds Up Towards Electronic
Automobile solid state relays (SSR) are expected to replace mechanical relays (Relay). The concept of energy saving and emission reduction has emerged. American and European automobile brands have gradually adopted solid-state relays instead of traditional mechanical relays in switching power supply systems, with a view to reducing carbon dioxide emissions and car body weight, and bringing safer and more comfortable driving experience. Jerome Py, senior marketing manager of Infineon Automotive Semiconductor Asia Pacific Regional Center, said that the demand for energy saving and emission reduction is driving, and automotive solid-state relays will completely replace mechanical relays. Jerome Py, senior marketing manager of Infineon's Asia-Pacific Regional Center for Automotive Semiconductors, said that European car regulations have stipulated that the carbon dioxide emissions per kilometer of automobiles should not exceed 130 grams since 2012. Currently, many high-end models cannot meet this standard; However, if the mechanical relay of the switching power supply system is changed to a solid-state relay, the power consumption will be reduced from 200 milliamperes (mA) to 3mA, which will help reduce carbon dioxide emissions. Therefore, solid-state relays have gradually obtained TIer 1 relay manufacturers and The favor of the depot. On the other hand, because a relay box contains ten to fifteen relays, car brands are most reluctant to replace the relay box with an embedded electronic system due to cost and manufacturing complexity; while solid-state relays still use mechanical The appearance and packaging of the relay, as a simple and independent electronic subsystem, can be directly inserted into the relay box, which can make the electromechanical integration system more efficient. It has been imported by many American and European car manufacturers. At the same time, the current life cycle of mechanical relays is about 100,000 times, and the number of solid state relay switches and starts can be as high as one million times, in addition to improving the service life of the car's total switching system, and the switching system such as wipers and doors And the electrification of the switch system can minimize the operating sound of wipers and car doors, which can increase the reliability of the system and the convenience and comfort of users. According to Py analysis, the global annual car shipments are about 80 million units, and an average of 10 to 20 relays must be installed per car. It is estimated that the total demand for solid state relays in the future will reach 16 billion units; Observation of several ongoing projects of relay manufacturers and car manufacturers, the solid-state relay market will grow rapidly in the next 2 to 3 years. Aiming at the business opportunities brought by the electronicization of automotive systems, Infineon will launch a solid-state relay product series for the automotive main switch system and electric windows, wipers and other application markets, and it is expected to be officially mass-produced next year. Py emphasized that the new generation of solid-state relays have extremely low on-resistance and can switch load currents up to 30A, which is very competitive in the market. In addition, Infineon has 40 years of experience in the field of automotive electronics, has its own advanced process technology and manufacturing plants, and the newly launched solid-state relay can integrate over-current, over-temperature protection and relay diagnostic functions at a time, and can further reduce the size. Through this product is expected to expand the company's market share in the automotive field.
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