“Compared with the mature technology of fuel vehicles, electric vehicles still need to improve a lot.”
Now is the golden window period for electric vehicles. With rising fuel prices and the development of intelligent driving technology, more and more users are buying electric vehicles, and the number of electric vehicles is increasing year by year. Vehicles are powered by electric energy, and safety has increasingly become a pain point for users. .
Because of the car accident of star Lin Zhiying, not only Tesla, but the safety of electric vehicles has re-entered the public’s field of vision, and people are again skeptical about the safety of electric vehicles. Racers and all-around champions with fast enough reflexes will have car accidents, not to mention ordinary drivers?
The smart cockpit of an electric vehicle provides the driver with more information interaction functions, which increase the richness and convenience of use and improve the driving experience.Lora Wireless Modules But at the same time, too many interactive functions will distract the driver’s attention and energy and interfere with driving.
Even if car manufacturers have designed many solutions to solve these problems, such as voice control, head-up display, etc., these product technologies have not reached sufficient maturity. On the contrary, products with immature technology may also have problems such as inaccurate speech recognition, insensitive operation, visual interference, complex central control operations, network delays, and black screen of the car and machine, which are more likely to interfere with driving.
For example, Tesla, Tesla’s autonomous driving perception unit mainly uses multi-camera visual perception technology, assisted by a single long-range 77GHz millimeter-wave radar fusion solution. Tesla has already encountered many obstacles, and the vehicle has not taken any deceleration or steering avoidance actions, and has directly hit the obstacle. Most of the hit objects are white and static, which is more likely to cause Tesla’s automatic driving visual perception failure.
In order to master more road features, simulate human driving style, and achieve a reliable level of autonomous driving, neural networks need to be trained and tested on representative datasets (driving behavior, complex environments, etc.) Advanced simulation software and user experience are combined to achieve multi-attribute balance and continuously optimize the autonomous driving model. Therefore, the automatic driving model is gradually optimized and mature, and before it matures and perfects, the initial users are equivalent to the experimenters to a certain extent.
Many functions of intelligent driving of electric vehicles are new to ordinary drivers, and the experience is very unfamiliar, which will lead to wrong driving cognition, wrong operation response, and it is difficult to perceive some potential safety hazards. Intelligent driving requires drivers to experience and adapt gradually.
There have been many news of electric vehicle battery fires in recent years, and battery safety has always been the biggest concern for consumers when buying electric vehicles. Electric safety is more important than intelligent driving.
The main safety problems of batteries at this stage are as follows:
1. The battery has occasional quality problems;
2. The consistency of the cells is not good, and there is liquid leakage and short circuit;
3. The wiring harness in the module is improperly laid out, and the insulation layer is worn and short-circuited due to extrusion and other reasons;
4. The poor production consistency of the electrical components of the battery pack leads to local overheating, etc.
All of these situations may lead to thermal runaway of the power battery, causing the electric vehicle to catch fire.
In response to the above-mentioned hidden dangers of batteries, various battery manufacturers and automobile manufacturers are committed to the pursuit of battery product safety, and conduct research and development and testing higher than national standards; real-time monitoring of battery voltage and battery temperature, battery management system BMS power-off protection, release Battery voltage, calling the thermal management system to cool the battery, etc. are all effective means to prevent “thermal runaway”.