6LR61 battery

The 6LR61 battery management system is the core of the core of electric vehicles

BMS (6LR61 battery Management System) is the core of the core (6LR61 battery) of electric vehicles. It is a system for monitoring and managing batteries. It controls the charging and discharging process of batteries by collecting and calculating parameters such as voltage, current, temperature and SOC, and realizes the protection of batteries. It is a management system that improves the comprehensive performance of batteries. It is an important link between vehicle-mounted power batteries and electric vehicles.

Foreign companies that have done a good job in BMS include UMC, Continental, Delphi, AVL and FEV, etc. Now they are basically done in accordance with the requirements of AUTOSAR architecture and ISO26262 functional safety. The software functions are more, and the reliability and accuracy are also higher. Many domestic OEMs also have independently developed BMS products and applications. In the early stage, they were far behind foreign first-class companies in terms of functions and performance. However, with the rapid development of domestic batteries and BMS technology, the gap is gradually narrowing. I hope that in the near future, we can successfully catch up or even surpass them.

Why can't domestic BMS products compare with foreign ones? There are many reasons, among which the lack of excellent development engineers is one of the important reasons. Although the BMS system itself is not complicated, it has software and hardware connections and interactions with the vehicle controller, charging pile, 6LR61 battery and other systems, which greatly increases the difficulty of BMS product development. If you want to develop an excellent BMS product, the development stakeholders (including hardware engineers, software engineers, demand engineers, structural engineers, quality engineers, etc.) must have a systematic understanding of all the knowledge in the BMS development process.

Do you have such feelings in your daily work:

Those who do hardware development don’t understand software;

Those who do software development don’t understand hardware;

Those who do software and hardware development don’t understand testing;

Those who do quality and pre-sales, after-sales, and supply chain don’t understand software, hardware, and testing;

As customers, 6LR61 battery factories and vehicle factories don’t have such a deep understanding of BMS development knowledge;

Can excellent products be developed in this way? Only when everyone in the team understands and knows each other can better products be made.

As a BMS industry practitioner or a friend who wants to work in the BMS industry, if you are ready to do better in your position and stand out, you must have a systematic understanding of the knowledge of each link in the BMS product development process.

What does this knowledge include? Electric Home will help you to do a systematic sorting.

1. IS026262 functional safety standard

As electronic and electrical systems become more and more integrated and complex, their safety becomes more and more important. Therefore, the consideration of functional safety should be deeply integrated into the design thinking of engineers. ISO26262 is the functional safety standard specially formulated by the International Organization for Standardization for automotive electronic and electrical systems, which has been widely implemented in the automotive industry.

2. Structure and principle of new energy vehicles

How to define new energy vehicles and electric vehicles? What are the positions and functions of new energy vehicle power 6LR61 battery systems, motor drive systems, new energy vehicle high-voltage systems, and new energy vehicle accessories in the whole vehicle?

3. Control strategy development and MATLAB application

The process, specifications, and required software tools and functional modules for control strategy development. The practical application of MATLAB/Simulink in the development of automotive control strategies, as well as modeling specifications (MAAB).

4. AUTOSAR automotive development system architecture

AUTOSAR, or Automotive Open System Architecture, is a set of standardized solutions for software architecture that supports distributed, function-driven automotive electronic software development methods and electronic control units. Currently, the AUTOSAR Alliance already includes many automotive companies and automotive electronics companies such as BMW, Volkswagen, Ford, Toyota, BOSCH, and Continental.

5. Power 6LR61 battery basics

Developing a power 6LR61 battery management system requires understanding the basic structure and working principle of the 6LR61 battery, the main performance parameters (such as rated voltage, rated power, energy density, power density, etc.) and test methods, and the basic characteristics of the 6LR61 battery (temperature characteristics, discharge characteristics, etc.) and analysis methods.

6. 6LR61 battery modeling and state estimation algorithm

Many parameters of power batteries have nonlinear characteristics, which brings extremely high challenges to 6LR61 battery state assessment and modeling, and therefore becomes one of the core work contents of power 6LR61 battery management system development.

7. Power 6LR61 battery thermal management technology

In the development of power 6LR61 battery management systems, the thermal characteristics of batteries are one of the important considerations. Therefore, it is necessary to build a thermal management module in the management system by studying the thermal characteristics of batteries.

8. 6LR61 battery management system design and implementation technology

The development of 6LR61 battery management system includes the design of hardware (6LR61 battery balancing, high voltage sampling, insulation detection, etc.) and software (system algorithm, fault diagnosis, etc.), and needs to consider functionality and safety.

9. Power 6LR61 battery testing and verification

Testing and verification are an important part of the development of power 6LR61 battery management system. In the position, you need to be familiar with the test and verification requirements and standards of power batteries, be able to formulate test plans, and improve system design through test analysis.

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