Hu Pengqiu,Gao Le,He Dewu,Tan Rui,Sun Rongli,Wu Tong
Issue:
Volume 1, Issue 1, March 2019
Pages:
1-8
Received:
16 March 2019
Accepted:
9 April 2019
Published:
27 April 2019
Downloads:
Views:
Abstract: BMS (Battery Management System) plays a vital role in the safe operation of new energy electric vehicles and the improvement of battery performance. This paper briefly analyzes the development status of BMS at home and abroad, the current market share of new energy electric vehicle power battery system, and the cost structure of new energy vehicles. The comparative analysis of energy dissipation and energy non-dissipative two types of battery equalization control technology performance indicators; The current SOC (State of Charge) evaluation algorithm is reviewed, and the principle, advantages and disadvantages of various methods are analyzed. The research status of lithium-ion battery pack optimized charging control technology at home and abroad is introduced. The relationship between the three key technologies of BMS is summarized. And look forward to the future development trend of BMS.Abstract: BMS (Battery Management System) plays a vital role in the safe operation of new energy electric vehicles and the improvement of battery performance. This paper briefly analyzes the development status of BMS at home and abroad, the current market share of new energy electric vehicle power battery system, and the cost structure of new energy vehicles...Show More
Abstract: In order to improve the efficiency of temperature measurement and realize long-distance multi-point accurate measurement, a multi-point intelligent wireless temperature monitoring system based on nRF4L01 wireless transceiver chip is designed. The system is divided into a host computer and several slaves. The slaves first collect temperature signals using DS18B20 temperature sensor, and then compare the collected temperature values with the set temperature, so as to work on the temperature control equipment. At the same time, the slave computer controls the wireless transmission module to upload temperature data to the host microcontroller for LCD display. Experiments show that multi-point temperature real-time acquisition and control can be realized at 500 m distance, and the error is in the range, and the work is stable, which can meet the functional design requirements.Abstract: In order to improve the efficiency of temperature measurement and realize long-distance multi-point accurate measurement, a multi-point intelligent wireless temperature monitoring system based on nRF4L01 wireless transceiver chip is designed. The system is divided into a host computer and several slaves. The slaves first collect temperature signals...Show More
