'Winter Olympics for the new energy vehicles and low-temperature battery technology results conference' held in Beijing. Beijing University of Technology developed lithium-ion battery system products and industrial production, the battery system Sensor can be applied to lower temperatures, -30 ℃ based on self-heating way in a few seconds to make the battery temperature to 0 ℃ Above, completely solve the electric car in the winter driving range sharp decline and many other problems.
Facing the cold environment, the use of new energy vehicles in the Winter Olympics needs to overcome many challenges. After the investigation, in the 2022 Winter Olympics, the new energy vehicles will face -20 ℃ to -30 ℃ low temperature working environment, as one of the host Zhangjiakou area, the average winter temperature is about -10 ℃, and Chongli outdoor The zone will drop to -23 ° C during the cold. In the face of low temperature conditions, the charging and discharging characteristics of the power battery of the electric vehicle will be deteriorated, and the capacity and life will be attenuated, leading to a significant decrease in the vehicle driving range and vehicle power performance, and the charging time is obviously prolonged. In the solution of electric vehicle power battery cryogenic applications, the main solution is to use external heating, but this battery heating Suction Control Valve system energy consumption is high, long time, low efficiency, the effect is poor. In addition, the Beijing Olympic Winter Games Hebei area is mainly mountainous areas, into the winter, road slopes and ice and snow pavement will lead to vehicle driving conditions are very complex. In the face of complex road conditions, the existing electric energy-based new energy vehicles are generally low intelligence level, still can not meet the snow-covered low road and other complex road conditions on the intelligent requirements of the vehicle, but also the new energy vehicles intelligent decision-making capacity Made a big challenge. Overall, complex road conditions and low intelligence constraints of the electric car in the Beijing Olympic Games in the large-scale application.
Beijing University of Technology and the United States EC POWER companies and other units to develop ultra-low temperature zone with self-heating technology, lithium-ion battery system products and industrial production, the battery system can be applied to lower temperatures, -30 ℃ based on Heating in the tens of seconds to make the battery temperature rise to 0 ℃ or more, thus activating the normal application of power batteries, the technology through physical methods to solve the problem Fuel Rail Pressure Sensor of low battery, suitable for a variety of battery systems, completely solve the electric car in the winter The rapid decline in mileage, can not start, attenuation, security risks and many other problems, the development of electric vehicles have a milestone significance.
Beijing University of Science and Technology also cooperates with Hunan Huaqiang Electric Co., Ltd. to carry out research on the application of low temperature aerated gas enthalpy increase technology. Compared with PTC heating, Beijing University of Science and Technology has the characteristics of wide temperature range, high energy efficiency and good safety, and solve the problem Throttle Position Sensor of temperature limitation and energy efficiency Low problem, you can meet the winter electric car low temperature heating requirements.