What does BYD SOC mean?
1 Answers
soc refers to the state of charge of the car battery, also called the remaining capacity, which indicates the battery's ability to continue working. SOC is generally the ratio of the charging capacity to the rated capacity, expressed as a percentage. A battery usually has a rated capacity, and a certain charging capacity can be obtained by charging for a certain time at a certain rate. The ratio of this capacity to the rated capacity is the SOC. Its value range is 0-1. Extended information: 1. Battery SOC cannot be measured directly: It can only be estimated through parameters such as battery terminal voltage, charge-discharge current, and internal resistance. These parameters are also affected by various uncertain factors such as battery aging, changes in ambient temperature, and the driving state of the car. Therefore, accurate SOC estimation has become an urgent problem to be solved in the development of electric vehicles. 2. Accurate estimation of battery SOC: On the one hand, it comes from the requirements of electric vehicles, which require efficient battery management from the perspectives of fully utilizing battery capacity and improving safety; on the other hand, the highly nonlinear performance of electric vehicle batteries during use makes accurate SOC estimation very difficult.
