Automotive battery management applications focus on efficiency is still multiple obstacles
Guests:
Linear Technology Corporation (LinearTechnologyCorporation) signal conditioning product marketing manager BrianBlack
TI Automotive market development manager for mixed-signal products, Liu Peng
Orth Source Technology Co., Ltd., general manager of Beijing Yin Shusheng
Core Power Technology Co., Ltd. Beijing Sales Manager Wang Liang
Hybrid vehicles for our country provides a good opportunity to catch up
It can be expected in the battery energy density and efficiency of investment and improvement work will continue, HEV / EV market will continue to grow worldwide
pure electric vehicles as a "zero emission" technology, in order to catch up with foreign technology in China provides a good platform
BrianBlack: the promotion of hybrid electric vehicle (HEV) and electric vehicles (EV) in the development of a number of factors, worries about climate change is just one of the other contributing factor is to improve the energy efficiency and through the use of alternative energy sources to improve air quality and reduce emissions, the third driver is that people want the relative supply of fuel energy is changed to more easily switch between.
Hybrid vehicles and electric vehicles are still at an early stage of development, but also because of the need in the car driving distance, cost and user-friendliness (such as recharge methods and time) trade-off between the path of development so they may be different. However, it can be expected that, in the battery energy density and efficiency of investment and improvement work will continue, HEV / EV market will continue to grow worldwide.
Yin Shusheng: 2010 development of hybrid vehicle market will show rapid growth, HEV / EV market will continue to grow worldwide. Official cars and private cars should be the mainstream for the development of pure electric vehicles, battery to supply electric vehicles in the form of rental customers, to reduce car costs, reduce the use and maintenance costs.
The market will be plug-in hybrid buses in the mainstream, that is, power generation systems with smaller and less efficient lithium-ion battery pack provides power for the vehicle, so the overall energy supply system can further reduce the cost of hybrid systems, size and weight. In addition to hybrid cars, another option is the oil and gas hybrid is the high pressure gas from the fuel generators and power transmission work together to power the vehicle.
Wang Liang: pure electric vehicles as a "zero emission" technology, in order to catch up with foreign technology in China provides a good platform to start the same time period at home and abroad, in some ways has a leading position in China, and has good market prospects. With the current situation, it is foreseeable, the new energy vehicles in particular, is a pure electric vehicle technology will gradually mature in China, the market will gradually improve and development. Only full advantage of the long-term battery research in the outcome, especially in the key power batteries and battery technology greatly exceeded it possible to better establish the advantage, in electric vehicle technology has made great leaps.
Battery management unit to enhance the efficiency of battery
Battery Meter management is the amount of battery charge and discharge the statistical work and data available to the vehicle management system; charge management unit for the battery charge and discharge the functions of the implementation of monitoring
secondary battery technology, especially high-power battery technology is still restricted the development of new energy vehicles
BrianBlack: HEV and EV systems although there are significant differences, but for accurate and reliable operation of energy measurement is a common basic requirements. Linear IC products manufactured in these two applications have been given to use.
Liu Peng: HEV, especially on the EV, the maximum utilization of stored energy is the key to the increase in vehicle driving range. Therefore, the active cell balancing technology developed rapidly. Battery match the implementation, not the high-power battery discharge to the lowest power consumption, but high-capacity battery energy transfer to low-power battery. This is patented technology by Texas Instruments PowerPump achieved, it is the basic DC / DC converters use a small set of inductors and transistors, to obtain about 85% efficiency. However, lithium-ion batteries also require close monitoring over voltage, under voltage and temperature levels to avoid possible fire or explosion. TI provides a highly integrated battery monitoring and balanced solution.
Yin Shusheng: measurement of management is a battery charge and discharge the battery statistical work and data available to the vehicle management system; charge management unit for the battery charge and discharge the functions of the implementation of monitoring of each battery unit has detected a battery temperature , voltage, current, balanced self-discharge voltage.
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