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1, Main results of automotive wireless charging technology 2. How is wireless charging for electric vehicles possible? 3. In-car based on SIT1043Wireless charging applications 4...

Research and development of wireless charging for logistics vehicles (Automotive wireless charging concept Leader)

Main achievements of automotive wireless charging technology

1, At present, wireless charging is mainly realized in four technical ways: magnetic induction technology, magnetic resonance technology, microwave technology and electric field coupling technology. Among them, magnetic induction technology and magnetic resonance technologyIs the current mass production of products are basically the use of technology.

2, electric vehicle wireless charging technology mainly uses the mutual inductance in the law of electromagnetic induction. It is also similar to a transformer, which inputs from the primary coil and then generates an induced current on the secondary coil. It mainly relies on the energy transmission between electricity and electricity, converts electricity into magnetism, and then induces electricity. Wireless charging is simply to charge electrical equipment through electromagnetic fields or electromagnetic waves without being connected by physical wires.

3, the receiving circuit can capture the radio wave energy bounced from the wall and adjust with the loadWhile maintaining a stable DC voltage. Electric vehicle wireless charging technology - magnetic field resonance principle - is composed of an energy sending device, and an energy receiving device, when the two devices are adjusted to the same frequency, or resonance at a specific frequency, they can exchange each other's energy.

4, wireless charging technology mainly through electromagnetic induction, magnetic resonance and other ways to achieve non-contact power transmission. For electric vehicles, electromagnetic induction and magnetic resonance are the two main wireless charging methods. Electromagnetic induction wireless charging is suitableIn a fixed parking space, charging is carried out when the vehicle is parked, and the magnetic resonance type can achieve mobile charging, but it requires large-scale upgrading of road facilities, and the cost is high.

How is wireless charging for electric vehicles possible?

Electric vehicle wireless charging technology mainly uses the mutual inductance in the law of electromagnetic induction. It is also similar to a transformer, which inputs from the primary coil and then generates an induced current on the secondary coil. It mainly relies on the energy transmission between electricity and electricity, converts electricity into magnetism, and then induces electricity. Wireless charging is simpleIt is to charge electrical equipment through electromagnetic fields or electromagnetic waves without being connected by physical wires.

How to wireless charging the car wireless charging How to use the car wireless charging method is: the car wireless charging is fixed in the appropriate position in the cab; Connect one end of the USB data cable of the wireless charger to the car cigarette port and the other end to the wireless charger; After fixing the position of the wireless charger, make sure that it is stable and will not slide, put the phone on and charge it.

There are two main ways to charge electric vehicles. One is the principle of electromagnetic induction. Yes, junior highThe principle of electromagnetic induction in physics is very simple, but relying on this principle for wireless charging, it is a matter of recent years, and mobile phones such as lumia 920 officially introduced this technology to the mobile phone industry in 2012.

The wireless charging principle of the car is by converting electrical energy into electromagnetic waves, which are then sent to the receiver, and then the electromagnetic waves are converted into electrical energy. Charging technology is not complex, mainly the use of electromagnetic induction and magnetic resonance, but the biggest difficulty of wireless charging is that the lack of a unified standard, charging time is too long, efficiency is too low, high cost.

The type of electromagnetic waveAfter powering up the car, you only need to put the mobile phone that supports wireless charging on the wireless charging pad to charge it. Click to close. Agreed. BMW Brilliance X5 was officially launched on March 31, 22, and is the first of the three BBA to achieve domestic medium and large SUV.

2, pro test can, as long as there is no exaggerated decoration of the mobile phone cover can be directly filled, otherwise what convenience can be talked about.

3. SIT1043Q, as a member of SIT1043 series, is designed to meet the CAN communication requirements of in-car wireless charging. It is compatible with ISO 11898-2:2016 standard, with low power standby mode and remote wake function, and high voltage tolerance of ±58V. In addition, it supports a flexible data rate of 5Mbps CAN FD, ensuring high speed and accuracy of data transmission.

Is there a mass-produced solution for wireless charging of car batteries now?

1, for pure trams, the research and development of wireless charging for logistics vehicles is now more reliableThe R & D program of wireless charging or the electromagnetic induction program The R & D of wireless charging for logistics cars is more stable and reliable than that of wireless charging for logistics cars . Although magnetic resonance can have a higher power distance advantage (a few centimeters to a few meters) Research and development of wireless charging for logistics vehicles , but it is difficult to control, technical difficulty is high, and it is not easy to use for electric vehicles (this may be the development of wireless charging for future car regulations)Direction).

2, technology maturity is also a link that cannot be ignored. Wireless charging technology has been quite mature in theory, but in practical applications, such as improving charging efficiency, reducing electromagnetic radiation and other technical problems still exist.

3, has entered the experimental stage, in the near future may be mass production. In fact, wireless charging technology is not a tall technology, it is the use of electromagnetic induction principle or magnetic field resonance principle, now science and technology is so developed, there is no before now have become a reality, the former wired computer now do not need to be a dense network cable, what in the worldIt's all possible. 4. Secondly, the "New energy Automobile Industry Development Plan (2021-2035)" recently issued by the General Office of the Government also named "wireless charging" and proposed to "strengthen the research and development of new charging technologies such as intelligent and orderly charging, high-power charging, and wireless charging". Wan 'an Technology (002590) said on the interactive platform that the company's new energy vehicle wireless charging technology is basically mature, and it is expected to enter the small-batch mass production stage in the second half of 2021.

Detailed explanation of the principle of wireless charging

1, electric vehicle wireless charging technology is mainly the use of logistics car with wireless charging research and development law of electromagnetic induction Logistics car with wireless charging research and development mutual inductance. Also similar to the development of transformer wireless charging for logistics vehicles , input from the primary coil Research and development of wireless charging for logistics vehicles , and then generate induced current on the secondary coil. It mainly relies on the energy transmission between electricity and electricity, converting electricity into magnetism, and thenInduction of electricity. Wireless charging is simply to charge electrical equipment through electromagnetic fields or electromagnetic waves without being connected by physical wires. 2, the breakthrough of vehicle wireless power transmission technology is to find a way to "grasp" electromagnetic waves, that is, to use the "resonance" principle of physics - two objects with the same vibration frequency can efficiently transmit energy. The system consists of the main circuit located outside the car and the secondary circuit, rectifier and drive system located inside the car.

3, the basic principle of wireless charging Wireless charging for logistics vehiclesElectromagnetic induction type: A certain frequency of alternating current in the primary coil generates a certain current in the secondary coil through electromagnetic induction, thereby transferring energy from the transmission end to the receiving end.