Electric vehicles have always been concerned with clean and environmental protection. Coupled with the energy crisis and rising oil prices, electric vehicles are increasingly favored by users. The electric vehicle is generally powered by a lithium battery, and a plurality of single cells are connected in series to form a battery pack as a power source. However, since the characteristics of each series cell are not guaranteed to be completely uniform, the charging and discharging speeds will be different under the same current. If the balancing intervention is not performed, the battery life will be greatly shortened, so it is necessary to monitor the state and total voltage of each cell in real time. The total current, according to the state of the battery charge and discharge equalization, and the charge and discharge balance, the equilibrium state should also be detected in real time, so there is an electric vehicle battery Energy Management System (EMS) {{V}} Practice probavit quod EMS potest efficaciter extend in altilium vitae electrica vehiculis et est momenti administratione ratio in electrica vehiculis, {VI}}
The EMS mainly includes an information collection module, a charge and discharge equalization module, an information centralized processing module, and a display module. Figure 1 is a structural diagram of the self-developed electric vehicle battery energy management system (EMS). The information acquisition module mainly completes the real-time collection of the battery pack and the voltage, temperature, current and other status of the single altilium et quoque monitor in altilium in realem tempus {{V}} providet ex foramen et claudendo ex aequationem moduli {{VI} et aequatio, determinat maxime compensat secundum quod est in unamquam ex acquisitione, et in altilium et deficere statum in unum de statu, {VII} de notitia Centralized module is responsible for processing, analyzing, and calculating the collected data (such as SOC, etc.), and monitoring the work of the equalization module, controlling it, and communicating with the display module, playing a role in the whole system. As the only human-computer interaction interface, the display module not only carries all the data and device status to the user in real time, but also allows the user to visually Videre altilium status et EMS opus effectus, et quoque praebet user cum EMS control communicationis {{{}} et mutare in user in EMS ad consequi realis, tempus vigilantia et imperium {XIII XIII}}
If there is no display module, people can't see the battery and EMS information. The alarm or prompt information of EMS can't be notified to the customer. Some alarm status can't be processed in time, which will cause battery damage, which will lead to the loss of control of the electric vehicle. Become a serious accident. Similarly, customers can't adjust and control EMS according to the situation, and they can't fully play the role of EMS. It can be seen that the human-computer interaction function of the display module is an indispensable component of the EMS. It is a good choice to see the touch screen from the functions required by the display module. However, if the touch screen on the market is purchased, not only the display content will be limited by the display function of the touch screen itself, but also the flexibility of the display design and the display quality are affected, and the Pretium de tactus screen in foro est fere altior, quod adiungit magna pars ad productum {{VIII}} sumptus, quod non nimium multum reducere in foro a competitive of products {{}} secundum quod est in STM32F103 Core {}} Core
