BMW is equipped with wireless charging technology on the 2018 530e iPerformance hybrid car, or will be mass-produced next year. Let's take a look at the related content with the car electronics editor.
According to the road, BMW is a 2018 e iPerformance hybrid car with a charging pad. The charging board is connected to a 220 volt power supply and can be fully charged with a 9.4 kWh battery pack in just 3.5 hours. The driver in the car according to the dashboard prompts, the control car stops on the wireless charging board, after the vehicle is turned off, the car can dock with the charging board to wirelessly charge.
Experts believe that the wireless charging system frees the new energy vehicle from the charging plug, and the power board can be buried underground, reducing wear and tear, and is not affected by bad weather. Although it still faces difficulties in key technology bottlenecks, difficult scale production, and high cost. But wireless charging technology has a bright future. By 2020, the technology will be popularized in new energy vehicles.
The BMW's wireless charging system consists of an integrated primary coil base that can be installed in the garage. A secondary coil can be mounted on the upper level of the garage. An alternating magnetic field is generated between the two coils, and the power is transmitted without cable at a charging rate of up to 3.2 kW.
According to BMW, at a 3.2kW wireless charging power, the 9.4kWh battery pack in the 530e hybrid can be fully charged in 3.5 hours, which is equivalent to the rate of charging with wires. It is understood that the BMW 530e can only travel 16 miles (about 26 kilometers) in electric mode.
A spokesman for BMW North America said that the original intention of wireless charging technology is to make charging more convenient. At present, BMW's wireless charging technology is still in the testing stage, and the evaluation phase is underway in the US and Canada, and the company's car wireless charging. Technology still needs to be approved by the Underwriters Laboratories (UL, Underwriter Laboratories Inc.).
It is understood that BMW is expected to launch the wireless charging technology early next year and apply the technology to the 530e iPerformance hybrid model.
Not just BMW. At the recent Frankfurt International Motor Show in Germany, the new Audi A8 hybrid also demonstrated its wireless charging technology: when the vehicle travels to the wireless charging base, the base automatically raises the secondary coil on the vehicle's ground. The magnetic field receives electrical energy. The charging efficiency of the wireless charging technology is said to be up to 90%.
On September 28, Liu Yong, senior business development manager of Qualcomm China's electric vehicle wireless charging technology, told the news that wireless charging technology is divided into three categories: the first is static charging. It is to arrange wireless charging to existing parking spaces, including public parking spaces or personal parking spaces; the second is semi-dynamic charging. The vehicle is driving at a low speed. For example, when preparing to pass the traffic light intersection, the electric vehicle is replenished in a short time; the third way is full dynamic charging. The vehicle charges the vehicle anytime, anywhere while driving at full speed. By that time, there is no need to equip a large-capacity battery, and the vehicle is lighter and less expensive.
In fact, static wireless charging technology has gradually entered our lives. According to the Nanning Evening News report: In September this year, Nanning, Guangxi, made its debut for a wirelessly chargeable bus, and newly invested in 10 BRT 18m buses and six wireless charging devices to start trial operation.
Shen Yanglin, an after-sales engineer of ZTE New Energy Automobile Co., Ltd. introduced that wireless charging mainly relies on magnetic field interaction to boost, invert, and rectify the current required by the battery to achieve charging. After the bus is parked in a special position, it can be charged by pressing two buttons on the ground. It can also be charged remotely on the mobile phone, without manual steps such as plugging in the power, and can be charged in bad weather. Wireless charging is easy to use and becomes a trend in the future.
However, wireless charging technology still faces many difficulties.
In August of this year, according to the China Energy News report, there are still many roadblocks on the road of commercialization of wireless charging technology: the refinement design of transmission coils and the foreign object detection technology are difficult; the key components are not mass-produced, the cost is difficult to reduce; the industrial chain is complicated. Incomplete; there is a lack of uniformity standards in the industry. Hu Chao, director of the system department of ZTE New Energy Automobile Co., Ltd., said, "Only after waiting for large-scale application of technology, the cost will be reduced. We think that 2 yuan / watt is an acceptable cost price."
However, Liu Yong is confident in the future of wireless charging. In the next two to three years, we will continue to see mass-produced models equipped with wireless charging systems. “The application in the Chinese market will be a little later, but China is the largest market for electric vehicles worldwide. We believe that wireless charging will be widely used in 2020.â€
The above is about car electronics - BMW next year or mass production wireless charging car experts said that the technology will be popularized in 2020. If you want to know more information, please pay more attention, electronic engineering will provide you with more complete, more Detailed and updated information.
This valve consists of a hollow, moveable floating piston pressed against a stationary solid seat, and can use the working fluid or an external pressure source to seal the valve. This open/closed valve has a novel balanced piston so it can be designed to always seat with the same amount of force, allowing the use of metal-to-metal seats as well as soft seats. Additionally, this valve design, even when used with large, high-pressure applications, does not require large conventional valve actuators, and the valve stem itself is eliminated. Actuation is achieved with the use of small, simple solenoid or hand valves. This design also eliminates the need for many seals used with existing ball valve and globe valve designs, which also commonly cause failure. Coupled with the elimination of the valve stem and conventional valve actuator, this valve design reduces downtime and maintenance costs, while increasing valve reliability and seat life.
Valve Seat Tool,Hardened Valve Seats,Valve Seat Cutting,Valve Cone And Valve Seat
Shenyang Zhicheng Heavy Machinery Manufacturing Co., Ltd. , https://www.zhichengmachinery.com