01
The general trend of the development of new energy vehiclesNew energy vehicles have the characteristics of zero emissions: mainly rely on electric energy, can be charged by a variety of renewable energy, continuous technological innovation and breakthroughs, progress in battery technology, charging technology, etc., mileage and charging speed can gradually be comparable to traditional fuel vehicles: a large number of harmful gases are produced when burning fossil fuels;Relying on non-renewable energy sources such as oil will be subject to restrictions such as traffic restrictions.
Figure 1 Advantages of new energy vehicles
Pure electric vehicles and hybrid vehicles maintain rapid development
New energy vehicles mainly refer to pure electric vehicles, plug-in hybrid vehicles and fuel cell vehicles, and the current development is better for pure electric vehicles and hybrid vehicles. The development of China's new energy vehicle industry has achieved remarkable results, and has established the research and development layout of new energy vehicles with "three verticals and three horizontals" ("three horizontals" refers to the whole vehicle of pure electric vehicles, hybrid vehicles and fuel cell vehicles, and "three verticals" refers to key components of batteries, motors and control systems).
Figure 2 Product classification of new energy vehicles.
The proportion of pure electric vehicles and lithium iron phosphate cells has accelerated
Explosive growth in demand for new energy vehicles: Consumer demand has increased significantly by promoting the launch of high-quality new energy vehicles, improving cruising range, optimizing the intelligent driving experience and further improving supporting facilities. Pure electric vehicles mainly account for 7258%, plug-in hybrids accounted for 2736%。Lithium iron phosphate battery speed: Lithium iron phosphate battery cells have low cost, replacing ternary batteries in commercial vehicles and mass passenger cars, reducing the battery cost of low-end models and meeting the demand for a range of less than 500km.
Figure 3 Proportion of pure electric new energy vehicles
Safety issues of new energy vehicles.
In recent years, China's new energy vehicle industry has entered the "fast lane", and the frequent occurrence of new energy vehicle accidents has further deepened the safety anxiety of users, and safety has become the bottom line of the development of the new energy industry. According to a survey by the Autohome Research Institute, there are only 540% of users believe that new energy vehicles are safer, and 2 3 users still trust the safety of fuel vehicles.
Figure 4 Who do you think is safer between fuel vehicles and new energy vehicles?
Based on the safety accidents of new energy vehicles in recent years, the safety of new energy vehicles mainly focuses on the functional safety of the whole vehicle, including battery safety, intelligent driving function safety, and hidden door handle safetyInformation Security;Driving safety includes six aspects, such as single-pedal mode safety and on-board large screen hidden danger safety.
1. One-pedal mode safety: misuse is the main reason, and the cultivation of vehicle instructions and new driving habits is the key.
2. Information security: There is a high degree of concern about the leakage of personal information and the control of driving, and they are willing to share data to improve driving safety.
3. Battery safety: battery thermal runaway is the main cause of the battery, and the collision is a big concern.
4. Hidden door handle safety: the principle of software and hardware collaboration and embedded design have great potential safety hazards.
5. Functional safety of intelligent driving: assistance failure and marketing distortion deepen the trust crisis, and mature technology and data verification are the foundation of trust.
6. Vehicle large screen safety: the inconvenience of large screen and touch screen operation is the main cause of potential safety hazards.