According to the discussion opinions of industry experts, the key types of new energy bus product inspections are: IP protection failure, vehicles soaked in water, vehicle collisions, loose wiring harness connections, frequent charging and discharging, or vehicles that have been parked for a long time. In addition to the above content, the focus of the inspection of new energy passenger vehicles and special-purpose vehicles also includes vehicles with harsh working and driving environments. Based on the causes of common problems, the equipment center requires focusing on the appearance, software diagnosis, air tightness, electrical connection components and capacity of the power battery. Subsequently, Luo Junjie, Director of the Equipment Industry Department of the Ministry of Industry and Information Technology, proposed four major measures: first, organize enterprises to carry out safety hazard inspections; second, strengthen the construction of technical management systems; third, carry out extensive special supervision and inspection of production consistency; fourth, accelerate the recommendation of safety standards System construction. While the Ministry of Industry and Information Technology is carrying out the above-mentioned work, senior leaders and authoritative experts who support the development of the new energy automobile industry have also put forward their own opinions. At the annual forum of the China Electric Vehicles Conference of 100 held in January this year, Wan Gang, vice chairman of the National Committee of the Chinese People's Political Consultative Conference, pointed out: "The electric-thermal safety of the power battery system must be the most critical indicator for the development of new energy vehicles." He further elaborated on the specific requirements, That is: comprehensive consideration of the power battery cells, modules, battery packs, electrical-thermal management and structural layout, etc., with special attention to the stability of materials, charge and discharge mechanisms, thermal runaway protection and electrical-thermal management systems to achieve the best results. Best system solution.

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