[introduction]Batteries management system (BMS) monitoring and the batteries in controlling the traffic such as dynamoelectric plane and electric car. It needs to be in fall with extreme condition normally have strict test, in order to prove its quality and integrality. Use imitate batteries has a test very beneficial, because OK and fast, again and again tests all sorts of requirements surely, and the risk that won’t risk precious hardware. This kind of hardware simplified to quality assures and catch up with in annulus test the pace of innovation.

Batteries management system (BMS) monitoring and the batteries in controlling the traffic such as dynamoelectric plane and electric car. It needs to be in fall with extreme condition normally have strict test, in order to prove its quality and integrality.

Use imitate batteries has a test very beneficial, because OK and fast, again and again tests all sorts of requirements surely, and the risk that won’t risk precious hardware. This kind of hardware simplified to quality assures and catch up with in annulus test the pace of innovation.

Batteries is carried out to the electrification transmission system of car or plane and marine implement crucial, and the crucial part that BMS is control and monitoring batteries group. BMS can ensure batteries safety moves, use its capacity effectively and prolong service life.

BMS is used at car, plane, store can system and consumptive electron product. It includes batteries management unit normally (monitoring of BMU) , batteries is unit (CMU) and distribution unit (PDU) .

 

Batteries management unit is main control implement; It receives batteries monitoring and distribution unit repeatedly, monitoring whole charges condition (SOC) and batteries voltage and batteries temperature information. Batteries monitoring unit and battery unit are joined; Groups of these module composition batteries – every batteries group has a CMU to adjust of each batteries charge and discharge, temperature and voltage.

Distribution unit receives all package that get electric power from batteries group or answer electric power feedback repeatedly – for example, in electric car (in EV) , this may be to charge system and electromotor.

Test batteries runs a system (BMS)

Strict test can ensure BMS satisfies his to ask, allocate electric current between batteries with means during charge for example. BMS is in nominal undertake checking below limits and extreme circumstance, become for example breakdown of batteries overheat, signal or when short-circuiting. Such, it can check BMS how to react and ensure below this kind of circumstance is normal to can check BMS how to react and ensure below this kind of circumstance move.

Test BMS faces all sorts of challenges, it is a complex task. BMS includes all sorts of controller, processing comes from the signal of distributed sensor, be linked together with the numerous system such as dynamical transmission system. Check all functions, configuration and condition need to give a lot of effort, and this cannot come true almost in actual batteries.

As the ageing of batteries, reproduce a condition repeatedly in order to check crucial algorithm (batteries is balanced and charge for example condition or health (SoH) estimates) crucial also. In addition, in developing a process, different group is in charge of each component normally, and their engineer always is not usable.

Batteries, BMS and infrastructure also are developing ceaselessly, accordingly systematic provider must catch up with this one pace, answer new requirement quickly. , use true hardware to have a test may very dangerous; Below bad situation, batteries may be pressed because of passing or extreme temperature and explode.

Use number twin undertakes BMS checks

These challenges can pass the digital twin of use batteries to solve. Battery unit simulator can pass level of imitate voltage, electric current and temperature to come the behavior of imitate batteries. It can state all sorts of batteries group frameworks check frame to not have with the standard seam compositive.

Graph simulator of 2 battery unit (BCE) passes level of imitate voltage, electric current and temperature to come the behavior of imitate batteries. Origin: Speedgoat GmbH

Considering batteries technology and chemistry, use fixed number of year and working temperature, battery unit simulator can get used to all sorts of cell type. Can fall to have a test surely quickly in normal moving condition and breakdown condition.

With actual batteries same communication agreement is used when interface. Use number twin undertakes checking returning conducing to checking systematic others, for example distribution and charge driver of package, electric machinery and fuel cell.

Same condition must return in can checking, examine the behaviour of controller with reliable ground. In addition, agile test infrastructure is crucial, it allows an engineer to check function and change to ask newly in order to satisfy ceaselessly in developing a process. In addition, check a lot of setting (include complexity) complete to coming true test is enclothed crucial.

Measure try out exemple to define and dog in software normally. Automation test program is mixed to retest it is very important to compare a result effectively. Demand is in normally the special kit of Simulink (for example Simulink Test) or undertake administrative in tool of as compatible as ASAM XIL tripartite software.

Digitlize the advantage of the test

Reach to check BMS controller its and of all sorts of component alternant, can use digital twin simulation the behavior of actual batteries. A lot of opinion are inchoate obtain, make the engineer can be being changed design and function are adjusted when still be being carried out easily. In addition, the trend that the digital twin of batteries can get used to to change quickly — it is more agile than hardware. It can be not had seam configuration in order to get used to new requirement.

In addition, twin of number of have the aid of, package can test before assemble. This can save time, and can developing the inchoate discovery of the process complex case or design are wrong, raise development quality and rate thereby. Same, because in inchoate phase is not to developing later period to undertake correcting, because this can save development and test cost. , in collision, batteries breakdown or press too in waiting for extreme incident, can undertake to BMS calm danger checks.

Accordingly, twin of use batteries number undertakes the test suits to check and go after the engineer of flow of successive automation work very much. To the user, a charming characteristic is they can be in environment of a software (Simulink) in carry out all tests.

Batteries model is developed in Simulink. Later, can use same model backstage to use hardware to have a test. Agile test infrastructure and kit can have the test of successive, automation according to the requirement of the definition.

 Graph test of BMS of 3 all automation all can be in onefold software environment (carry out in Simulink) . Origin: Speedgoat GmbH

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