我正在设计一种电池模型及其控制，以进行循环充电和放电。电池模型是通过使用SIMSCAPE电池块创建的(基于表)。该控件是使用Stateflow建模的。状态流程图将SOC值作为输入，并提供当前值作为输出。默认情况下，电池处于静止状态，在该状态下不会消耗电流(i=0A)。然后根据电池的SOC%，进入充电(3A电流)或放电(-3A电流)状态。我已经定义了如下控件。

- If the battery has SOC >= 50%, it has to discharge.  
- If the battery   has SOC < 50%, it has to charge. 
- While discharging, if the battery reaches 0% SOC, it goes to rest. 
- While charging, if the battery reaches 100% SOC, it goes to rest.

I have defined the initial SOC as 50%.
When I run the simulation, the battery started to discharge as per the condition provided in the stateflow chart.
I = -3
But the battery has not come to rest after reaching 0% S0C.
I am getting a warning that,
*At time 1944.017100, one or more assertions are triggered. State of charge must be greater than or equal to zero. The assertion comes from: Block path: Example_cell_model/Battery (Table-Based)1Assert location:  o (location information is protected)*

I don't understand why the battery has not come back to rest.
Does anyone have any idea of [enter image description here][1]the cause of this problem and how to resolve it?

[Battery model][1]
[Stateflow chart][2]
[Simulation result][3]
[Warning message][4]

  [1]: https://i.stack.imgur.com/TFstb.png
  [2]: https://i.stack.imgur.com/PbtuD.png
  [3]: https://i.stack.imgur.com/kUAP4.png
  [4]: https://i.stack.imgur.com/njLQy.png

Thanks in advance!