Automation opportunities in the field of electric vehicle control

If every economic crisis engenders a new science and technology, then when energy supplies become increasingly short-lived or even depleted; when global warming occurs, species including humans themselves are faced with a disaster. The new technology is even more urgent. In the field of automobiles, especially in the field of electric vehicles, many countries have introduced policies to support the development and market development of the electric vehicle market. For example, the British government plans to have a total budget of 250 million pounds. Since 2011, it has implemented a five-year electric vehicle financing program — - At the same time as national policies support electric vehicles, they will penetrate into the industry and influence many areas. Automation has obvious advantages in the field of electric vehicle control. In fact, electric vehicles also involve the establishment of a series of infrastructures, such as charging stations for charging stations. The management of these electric vehicles and the surrounding transportation systems depends to a large extent on the development of the automation industry.

Motors: Electric Driven Vehicles, Zero Emissions Based on the above background, many large enterprise groups have begun to enter this market. On August 31, 2011, Siemens and Volvo Car Corporation, headquartered in Gothenburg, Sweden, announced in Munich, Germany, on August 31 that they will cooperate to promote the research and development of electric vehicles. Both parties agreed to carry out extensive strategic cooperation in the field of electric vehicles. The cooperation will focus on the research and development of electric drive technology, power electronics technology and charging technology, as well as the integration of these systems on the Volvo Car C30 electric vehicle.

Electronic power systems, battery management and charging technologies are considered key technologies for the development and production of electric vehicles. This time, Siemens designed the motors for Volvo's electric vehicles with a modular design that is very compact. The peak output power is 108 kW and the maximum torque is 220 Nm. The design of the inverter will be comprehensively optimized to meet all safety requirements during automotive use. In addition, Siemens will also provide efficient and fast onboard and split charging systems. The first Volvo C30 electric car equipped with Siemens motor equipment is expected to enter the test lane by the end of this year. From the end of 2012, Volvo Cars will provide Siemens with 200 electric vehicles for testing and verification by Siemens' in-house test fleet in actual road conditions.

As part of the all-round energy concept of Siemens to achieve sustainable development of electric traffic, Siemens stated that it will continue to work on the industrial production of hydrogen fuel cells. The goal is to convert the temporarily redundant electricity produced from renewable energy sources into "green" hydrogen fuel. After it is reduced to electricity, it can be used directly in industrial production, fuel cell vehicles, and battery-powered electric vehicles.

Last year, another motor manufacturer, Taiwan's Dongyuan Electric Co., Ltd. announced in the announcement that the company will cooperate with Japanese electric vehicle manufacturer SIM-DriveCorp to produce hub motors. In terms of output, Dongyuan Motor is the world's third-largest manufacturer of heavy industrial motors, second only to ABB and Siemens, and is the first large-scale wind turbine design and manufacturer in Taiwan. SIM-Drive is a newly established electric vehicle researcher and developer. Under the support of 34 Japanese partners including Mitsubishi Motors and Isuzu Motors, SIM-Drive will launch electric vehicle R&D. Its development goal is to begin mass production of electric vehicles by 2013.

In recent years, motor controllers have increased investment in new energy vehicles and their core components. The development of motor controllers has rapidly evolved from technology research to product development. There have been a number of industries that professionally develop and produce automotive motor drive systems. Enterprises, foreign motor controller manufacturers are Toyota, Honda, Hitachi, Ford, General Motors, Ming Ding She Motors, Toshiba, UQM Motors, ACPROPULSION, ENOVA Motors, MM Corporation and Japan Yaskawa Electric. The main domestic motor controller companies are Shenzhen Huichuan, Shanghai Electric Drive, Shanghai Grand County, Jingjin Electric, and CSR Times. These enterprises have gradually formed an industrial chain that is conducive to improving product quality and reducing costs.

However, due to the fact that the entire industry value chain, supporting facilities, and technical solutions have not been perfected, so far, most of the enterprises in this industry are still in the stage of prototype verification and small-batch commercial verification.

The motor controller needs to develop different technology platforms depending on the matching motor. At present, induction motor and permanent magnet synchronous motor are mainly used in electric vehicle motor drive systems. The technology of AC induction motors is the most mature and is currently used the most, especially in commercial vehicles that require high power output. However, the disadvantages of AC induction motors are more obvious in terms of power density and efficiency. Although in 2011 the price of rare earth permanent magnet materials accompanied by the mad increase in rare earth permanent magnet materials, the demand for asynchronous motors has increased significantly. However, from the comparison of torque characteristics and noise indicators, permanent magnet synchronous motors have obvious advantages over brushless DC motors and switched reluctance motors. . Based on the analysis of comprehensive technology and market trends, the future development direction of three technologies for automotive drive motor systems is permanent magnetization, digitization and integration. To this end, recently, Huichuan Technology intends to use an over-raised fund of 107 million yuan for an annual output of 40,000 units/set of new energy automotive motor controllers. The project will build 8 new energy vehicle motor controller production lines and related solicitation test systems. The construction period will be 2 years, and 2013 will be put into use. At present, Inovance Technologies has achieved technological leadership in the field of motor control, with annual shipments of more than 30,000 units.

Control Management: Electric Vehicle Charging Station In 2010, new energy vehicles were included in the State Council's announcement of a strategic emerging industry plan, followed by the establishment of a central-level electric vehicle alliance by the SASAC in conjunction with 16 central enterprises. With the development of electric vehicles from the public or rental car in the early stage, they gradually developed into official or private cars, and their charging facilities also required more and more networking, intelligence, and standardization.

In January of this year, ABB invested $10 million in ECOtality, a charging station development and power storage technology company in San Francisco, to enter the North American electric vehicle infrastructure market. In March of this year, ABB exhibited its latest electric vehicle charging technology when participating in the 2011 Geneva International Motor Show, including the fully functional fast charging station for electric vehicles that was first exhibited at the global auto show. This fast charging station can speed up the charging process of the car battery, and can increase the battery power from 20% of the rated capacity to 80% in about 15 minutes, which is enough to support the normal driving of the car for 100 kilometers.

As a leading power and automation technology group in the world, in May 2011, ABB said in an interview with the media that ABB intends to set up electric vehicle charging station facilities in Shanghai, and revealed that it includes power grid companies, Sinopec, auto vehicle companies and other charging Equipment suppliers, etc., are expected to have an overall market capacity of more than 10 billion yuan in the future, so the prospects are broad. Frank Duggan, head of ABB Group’s global market, also stated that there are still a series of challenges in the charging station for electric vehicles, such as energy storage technology for car batteries and overall control management technology for electric charging stations. "It may be too early for China to fully roll out charging stations in the short term."

Prior to this, ABB company had participated in the construction of China's largest electric vehicle charging station - Shenzhen Dayun Center electric vehicle charging station project, providing low-voltage air circuit breakers and molded case circuit breaker products for the low-voltage power distribution cabinet of the charging station. In addition, DC fast charging stations are also set up in Hong Kong.

The charging station construction process requires the use of many devices, such as chargers, power monitoring systems, active filtering devices, charging piles, transformers, power distribution cabinets, cables, etc., among which chargers, power monitoring systems, active filter devices, charging Piles are the most used and relatively unique electrical equipment in the construction of charging stations. The charger and charging pile equipment suppliers include Guodian Nanrui, XJ Electric, Siyuan Electric, Autexun, active filter device equipment suppliers Rongxin shares, Siyuan Electric, Senyuan Electric, and energy monitoring system equipment suppliers. State Power Nanrui, Xuji Electric, Guodian South.

It can be seen that the motor and control system companies will also share the electric car feast.

The most central goal of the development of electric vehicles is electrification. The gradual routes of electrification are: traditional hybrid vehicles, plug-in hybrid vehicles, and pure electric vehicles. No matter what type of new energy vehicle, it is necessary to introduce the motor and its control system equipment.

Connector The China International Electric Vehicle and Charging Station Construction Exhibition was grandly opened at the North China International Exhibition Center from October 12 to 15, 2011. During the exhibition, Weidmüller launched the connector of the HDC charging car interface series. This connector is the product of Weidmüller's long-term focus on new technologies in the field of electrical connection, providing high performance and high performance for new energy electric vehicles. Quality electrical connection solution. Weidmüller offers a wide range of AC charging interface products and DC charging interface products. This series of products is fully compliant with the newly issued QC/T841-2010 standard. At the same time, IEC62196-2 has good ergonomic design and attractive appearance. , Have a comfortable grip, while the product has a low insertion force, high locking force, a wide range of temperature resistance advantages, while with charging anti-loose and other functions.

For professional car charging station equipment, Weidmüller's products - D series relays, secondary lightning protection products and flat panel power supplies, etc. are also on stage.

The success of the future will be driven by the continued drive of national policies, the strengthening of consumer acceptance, the gradual consolidation of electric vehicle infrastructure, and the increasingly sophisticated battery system and powertrain system, which will bring immeasurable new value to automation manufacturers. opportunity.

The electronic power system, battery management and charging technology are considered to be key technologies for the development and production of electric vehicles and charging stations as basic engineering for electric vehicles. The advancement of automation technology can meet the high performance requirements of users for electric vehicles and charging stations, and is the only way for the electric vehicle industry to reach a bright future.

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