Energy saving auto emission has become the driving force behind the development of automotive electronics, with the increasing scarcity of oil supply and growing pollution of the environment, laptop battery rechargeable electric vehicles such as electricity powered vehicles, with energy savings and enjoy protection of the environment becomes a concern for the industry focus. However, even if the electric car has many advantages, but it is a time can not replace the traditional gas powered model, so that the new hybrid electric vehicle is clean with industrialization and commercialization of most models promising. However, batteries, cost, reliability, longevity, a more complex requirements of devices of high power voltage for automotive manufacturers and many other problems facing many challenges.
Infineon Technologies (China) Limited companies in the automotive electronics, Senior Marketing Engineer Cao Yu said: At present, dell inspiron 1501 battery the main challenges of hybrid cars from two aspects: one is the power systems and traditional electrical systems for coordination, the other is the need for cost control conditions to meet the requirements of automotive electronics reliability of complex application environments.
Cao Yu: Hybrid cars as a major challenge lies in the traditional power systems and electrical systems for coordination.
Fairchild, senior manager of the global automotive, Hans-PeterHoenes believes that hybrid vehicles the main design challenges are based on a very low cost to create a very complex and yet highly reliable systems.
“Electric cars can be divided into three categories: hybrid, fuel cell and electric vehicles. Electric because there is a universal problem – battery, batteries because of existing problems, hp f4809a battery,hp f4812a battery the future may be the production possibility Mass The most important is the hybrid. than a hybrid engine with conventional technology, an increase in three parts, one vehicle control, 2 battery management, and the third motor control. Freescale’s Automotive Electronics Engineering Manager for China, said Xiao Kang Dun.
Xiao Kang Dun: The battery technology is the key to hybrid cars, batteries are the cost of the vehicle 1 / 3 of the foregoing.
Hybrid electric vehicle is further divided into light (micro) mixed with full hybrid vehicles, the challenges they face are different.
Light mixed with the various challenges facing the entire mixed
Cao Yu analyzed system of micro-mixing and full-hybrid system in the system are structurally very different, it is more than the system of electric capacity, the percentage of the value of the difference is important that quantitative changes in the structure caused by vehicles. Micro-hybrid systems in general to achieve start-stop function, compaq presario v2000 battery the whole hybrid system, does not power the engines of vehicles in the case still has some stamina. Because the system greatly increased the degree of coupling, the complete structure of the hybrid system is more complex and more challenges in the design.
Hans-PeterHoenes were analyzed for light hybrid vehicles, the chassis (the basic design) is still the traditional automotive design, usually in a normal car on the integration of hybrid characteristics. As the chassis (the base design) design has been fixed, the additional needs of all systems must be able to meet demand. However, this is not always the best technical solution, so far the biggest challenge in this regard is the integration of mechanical and electrical integration. toshiba pa3285u-2brs battery,toshiba pa3285u-3brs battery In other words, the minimum space requirements for the design. As for the full use of hybrid cars, the whole design needs to change, not just the powertrain, chassis and even had to move forward and is optimized for mixed. A good design should be designed around the driveline of the car, while the traditional curriculum is designed for cars, but the engine placed in the “somewhere”. This is a complete change in the concept of design thinking, because the drive has been decided, or at least strongly influence the shape and appearance of the vehicle.
“The design work is facing the biggest challenge is the lack of transmission of high power electric high pressure (high pressure high-powered engine power) has extensive experience of Automotive Engineers. Because of the conditions and Cars are different, so even in the field of industrial drives and experienced Senior Consultant can provide assistance is very limited. Hoenes said. Fairchild was not only a discrete energy technology, and the gate driver IC such as. ibm thinkpad r52 battery,ibm thinkpad t40 battery This applies not only to low voltage, but also covers the full range of voltage up to 1200V. This ability to integrate the module allows customers to receive a fully tested to optimize the power level, can solve many problems associated with the interaction between design problems and parasitic device.
Motor Control Challenges
In motor control, Cao Yu stressed that the main difficulty is the need to achieve self-reliability requirements level, and must take into account the cost of implementing this law. Also need to consider the system of record-high power caused by electromagnetic interference and noise effects. If you use the device of industrial quality, although the initial period of no major problems, but as time passes, accompanied by a device designed to produce failure, the seller will give you the image and reputation has brought incalculable loss “, which is why we recommend the use of devices for automotive, apple a1185 battery,apple m8403 battery effectively guarantee system of the vehicle lifecycle, reliable operation. “he said.” As the world’s leading supplier of power devices, Infineon has a depth of experience and many experts team, to better understand the specific needs of customers, helping customers to find, even those hidden in application requirements within the system details.
Infineon offers leading industry suppliers of HP1 high power density of automotive-grade module (hybridpack1) & HP2 (hybridpack2) with ultra-small size, the systems most relevant automotive constraints of space. HP1 weight 485g (72×140x17mm) 3 half-bridge in-one design, 650V400A maximum drive capacity for less than 20-30kW motors. HP2 (106.5×48.5×20.5mm) the weight of 1250g, is more directly based on a particular water-cooled thermal design to meet the 80-100KW Module 650V800A motor applications.
Microchip Automotive Automotive Products Group Marketing Manager, Chan Chung-yan, the view that: “In the hybrid vehicle, motor control for steering control, and cooling the battery and other key subsystems is critical . Brushless DC (BLDC) motors because of their small size, control and high performance The widely used. brushless DC motors are increasingly used to remove the belts and hydraulic systems to provide additional functionality and improved mileage. magnet costs continued to decrease and control of brushless DC motors electrical devices necessary to continue to reduce, dell latitude d420 battery,dell latitude d430 battery leading to more and more cars, power level is also increasing. ”
Chan Chung-yan, then explained, brushless DC motors are usually controlled by one or more of the rotor position sensor used in conjunction with, because their electrical excitation must be synchronized with the rotor position. For the cost, reliability and packaging, mechanical, especially if the engine needs to be immersed in a fluid, preferably in the case of a brushless DC motor sensorless Running – that is, without the operation of the detector. Sensorless motors cost less because it does not require sensors, but the driver is more complex. Sensorless Motor in Hybrid Electric Vehicle Battery cooling system has excellent performance, this time, do not need to start and stop the engine. “Designers of embedded automotive systems meet the changing environment, the need to develop a cost-effective solution that respects the environment. hp f4809a battery,hp f4812a battery Low-power micro-controller is an important mechanism to meet the demanding needs, which may increase the cost of reduced system reliability in a small package to fit a smaller space than board, and no external components. In addition, for the socket, software and peripheral compatibility with the architecture of microcontroller provides designers a great flexibility, allowing them to reduce the costs and reduce development time. Microchip Technology offers a variety of microcontrollers and DSC, to meet the challenges of demand for hybrid designers of automotive electronics is the best solution. ”
In the powertrain systems, Cao Yu think the biggest challenge is how to coordinate the motor system and the traditional operating system power, giving the user a better driving experience. Improving the efficiency of the whole system mainly the following aspects: improving the efficiency of the engine, the braking rate of the input energy, thereby reducing engine efficiency at low speed range of operation and so on.
In motor control, Kang Xiaodui Freescale, said the electronic engine management Freescale essentially a world leader. We offer advanced embedded controllers, sensor technology, components, power management and power brakes the drive, so that the new vehicle cheaper, and protect the environment. ibm fru 92p1141 battery,ibm thinkpad r32 battery We always control technology introduced in motor control and electric vehicle management, and based on processors PowerArchitecture Freescale MPC55/56xx series offers many of the most advanced engine control, vehicle management, electric drive battery management solutions. ”
Battery management is facing the biggest challenge
In the (full) hybrid vehicles, the battery is more expensive but also more delicate parts. Although the lithium battery with advantages of high power density, but in the development of batteries for hybrid cars, there is still much to do. In this case, the coming years, nickel-metal hydride (NiMH), will always be more widely used.
Hans-PeterHoenes stressed that to achieve the fast charge without damage (damage) batteries, designers need a very specific charge (charge) control technology. Although the algorithm micro-controller integrated intelligent programming is essentially a software solution, but Fairchild continued to focus on the hardware. To avoid interfering with power lines during charging, a good solution for power factor correction is necessary, to some extent, apple powerbook g4 17-inch battery even demanding the legal standard. The control IC Fairchild has a broad product portfolio, combined with built-in with a soft-recovery rectifiers (the performance of the rectifier diode) and low voltage drop across the IGBT saturation can provide a complete solution.
In managing the battery, Cao Yu Li-ion battery that Infineon has a dynamic balance of patent applications, may reduce the differences between each other, the effective improvement of battery efficiency and longevity. This patented feature is the battery charged and discharged, or any downtime to implement the balance of power, very suitable for power applications in automotive environments as varied and mode switching rapidly needs.
“Given current technology, battery technology is hybrid vehicles and electric cars key. Even a relatively high success in the market for hybrid cars, batteries are the cost of the vehicle 1 / 3 or more. But as the weight, reliability, longevity and many other problems to solve. lithium iron phosphate battery technology should be a better solution. However, regarding the above issues must still be improved. Fuel cells are another technology, its technical maturity, fuels (mostly liquid hydrogen) storage and control issues, we can say can not immediately become a mature product, mass-produced. While pure electric cars, hybrid words, the cost battery, weight, reliability, life, including the issue of pricing will be the government, car manufacturers are facing a major problem. “Xiao Kang Dun said:” So, the current hybrid vehicles in Europe and the United States and Japan, dell latitude d800 battery and has become industrialized and domestic in its infancy, there is no formation of industrialization. As the world’s leading manufacturer of automotive semiconductors, Freescale is committed to consumer electronics China Motor contribute to development. Our key customer support (such as BYD, etc.), including technical exchanges, product pricing, etc.. “
