The electric vehicle battery management system (BMS) is an important link
between the vehicle power battery and the electric vehicle. It integrates the
monitoring and management of the battery or battery pack to ensure that the
battery or battery pack is safe and reliable and outputs in the best condition.
power. BMS can realize important functions such as real-time monitoring of
batteries, automatic balancing, and intelligent charging and discharging. While
effectively ensuring battery safety, it can also monitor the remaining battery
power. Through effective battery management, the cruising range of electric
vehicles can be improved. It is The power battery pack is an indispensable and
important component and is of great significance to the normal operation of
electric vehicles. Only through effective control and management of complex and
numerous battery packs can we break through the bottleneck in the promotion and
popularization of electric vehicles. Tesla's battery management system can be
said to be the most mature system today. Thanks to the full application of deep
learning and artificial intelligence, Tesla's BMS can continuously obtain big
data of actual driving, and then self-strengthen the algorithm, thus Make the
Tesla battery pack last relatively longer. Range is currently the main issue
facing the increase in the penetration rate of electric vehicles, and Tesla has
demonstrated a differentiated competitive advantage in this regard by relying on
its leading design concepts. From the perspective of foreign markets, BMS, like
batteries, is an auto component produced by the OEM, and the OEM is placed at
the top of the pyramid. BMS starts from the design of functional definition,
which is led by the OEM. Then it finds a third-party design company for product
design, and finally finds a manufacturer for production. The three parties
jointly decide on the BMS matching solution for the battery pack. The main
participants in the BMS market are vehicle companies, auto parts companies, and
battery companies: OEMs rely on their deep understanding of vehicle control and
parameter matching, and their strong financial strength and technology
accumulation to develop products that meet their own product needs. Matching
BMS, such as Tesla, Toyota Pruis, Nissan Leaf, GM Volt, etc., are all developed
by OEMs; large auto parts companies such as Bosch, Delphi, Denso, Preh,
CalsonicKansei, etc. use their own The R&D advantages in related products
and long-term good cooperative relations with OEMs also occupy an important
position in the BMS market; in addition, another important participant in the
BMS market is battery manufacturers, such as LG, Samsung SDI, A123, etc. Their
BMS is mainly matched with their own battery products. In other words, BMS is
extremely important for vehicle manufacturers, battery PACK manufacturers, or
third-party BMS manufacturers. Technically speaking, vehicle manufacturers and
battery manufacturers need to understand BMS technology, otherwise they cannot
better match the performance of the vehicle and battery system. The importance
of the battery management system (BMS) is self-evident, and the best reflection
is that companies need to recruit a large number of engineers and the salary
level of engineers is very high. There are a large number of recruitment
positions related to battery management system BMS. Searching for "battery
management system BMS" on a well-known domestic recruitment website shows a
large number (100+) of BMS recruitment positions and well-known new energy
vehicles, power battery companies, etc. After a rough calculation, the website
recruits "battery management system BMS" "There are as many as 500 related
positions. The highest salary level is over one million per year. In addition to
the large number of positions related to battery management system BMS being
recruited, the benefits offered by various companies are also really attractive.
Among them, a certain automobile company in Guangzhou has offered the position
of "BMS Battery Management System Professional Chief Engineer" with a maximum
annual salary of 1.32 million. Of course, the relevant requirements are not low,
including a bachelor's degree or above, more than 1 year of work experience, and
an age of 35-45 years old. The average salary level is significantly higher than
other industries and higher than other positions in the new energy automobile
industry. Electric Zhijia System sorted out the overall salary level of the
battery management system BMS recruited and found that the minimum salary is
generally above 18,000 per month, and the average monthly salary level is
30,000-40,000, and of course there are also 40,000-50,000 per month. , and the
working experience requirement is generally 3-5 years, and higher requirements
are 5-7 years. At present, the new energy vehicle industry is developing in full
swing around the world, and the domestic development momentum is even stronger.
The annual production and sales growth rate is basically above 50%. According to
incomplete statistics, there are more than 100 domestic new energy vehicle
companies, hundreds of battery companies (including vehicle batteries and energy
storage batteries), and more than 100 third-party BMS companies, large and
small. The actual industrialization (volume production) of the battery
management system BMS will take about 10 years. The rapid growth of the
industry, the lag in talent training, and the needs of many enterprises (vehicle
manufacturers, battery factories, third-party BMS factories) have resulted in a
sharp shortage of BMS engineers. This trend will continue for a long time,
because The speed of talent cultivation has never kept pace with the speed of
industry development. Moreover, the current school education has always been out
of touch with the needs of employers. The college students trained cannot meet
the needs of employers, because the knowledge that battery management system BMS
engineers need to master is very comprehensive. How to become a qualified BMS
engineer? At least nine major aspects of content are required, including new
energy vehicle structure and principles, power battery basics, IS026262
functional safety standard, control strategy development and MATLAB application,
AUTOSAR vehicle development system architecture, battery modeling and state
estimation algorithm, and power battery thermal management technology. , battery
management system design and implementation technology, power battery testing
and verification, etc. 1. Structure and principles of new energy vehicles. How
are new energy vehicles and electric vehicles defined? What are the positions
and functions of new energy vehicle power battery systems, motor drive systems,
new energy vehicle high-voltage systems, and new energy vehicle accessories in
the entire vehicle? 2. Basic development of power battery management system
requires understanding of the basic structure and working principle of the
battery, main performance parameters (such as rated voltage, rated power, energy
density, power density, etc.) and testing methods, and basic battery
characteristics (temperature characteristics, discharge characteristics, etc.)
and analysis methods. 3. IS026262 functional safety standard As electronic and
electrical systems become more integrated and complex, their safety becomes
increasingly important. Therefore, functional safety considerations should be
ingrained in engineers’ design thinking. ISO26262 is a functional safety
standard formulated by the International Organization for Standardization
specifically for automotive electronic and electrical systems, and has been
widely implemented in the automotive industry. 4. Control strategy development
and MATLAB application control strategy development processes, specifications
and required software tools and functional modules. Practical application of
MATLAB/Simulink in automotive control strategy development, and modeling
specifications (MAAB). 5. AUTOSAR Automotive Open System Architecture AUTOSAR,
or Automotive Open System Architecture, is a set of software architecture
standardization solutions that support distributed, function-driven automotive
electronic software development methods and electronic control units. Currently,
the AUTOSAR alliance has included BMW, Volkswagen, Ford, Toyota, BOSCH,
Continental and many other automobile companies and automotive electronics
companies. 6. Battery modeling and state estimation algorithm. Many parameters
of power batteries have non-linear characteristics, which brings extremely high
challenges to battery state assessment and modeling. Therefore, it has become
one of the core tasks of the development of power battery management systems. .
7. Power battery thermal management technology In the development of power
battery management systems, the thermal characteristics of the battery are one
of the important considerations. Therefore, it is necessary to study the thermal
characteristics of the battery and then build a thermal management module in the
management system. 8. Battery management system design and implementation
technology Battery management system development work includes the design of
hardware (battery balancing, high-voltage sampling, insulation detection, etc.)
and software (system algorithms, fault diagnosis, etc.), and functionality and
safety need to be considered. 9. Power battery testing and verification Testing
and verification are an important part of the development of power battery
management systems. In the job, you need to be familiar with the testing and
verification requirements and standards of power batteries, be able to formulate
test plans, and improve system design through test analysis. Whether you are a
member of an automobile manufacturer, a battery PACK factory or a third-party
BMS company, whether you are working in software, hardware, testing, technology,
projects, quality, after-sales and other positions, if you want to get that
enviable annual salary , the knowledge you need to master is not only enough for
what you are doing now, but also a comprehensive and systematic study of BMS. If
you are a student preparing for employment, or an employee who has been employed
for a period of time, and want to switch to the new energy vehicle industry,
becoming a BMS may be a very good choice. How can you be one step ahead? Of
course, you need to do a systematic and comprehensive study of BMS.
Read recommendations:
21700 4800MAH 3.7V
How to distinguish between energy storage lithium batteries and power lithium batteries.R03 Carbon b
Lithium battery manufacturers' depiction of shell characteristics.CR2032 battery
14500 battery company
li ion 18650 battery pack manufacturer
360° FACTORY VR TOUR
Whatsapp
Tel
Email
TOP