High-voltage current sensor module | Continental Changchun Technical Center confirms application for 2024 Golden Edition Award

Application technology丨High voltage current sensor module

Application field: Powertrain and charging and swapping

Unique advantages:

CSM products meet the key needs of major automobile manufacturers. Product design and manufacturing are strictly controlled by the process. The performance, size and precision of the products are highly recognized by customers. Its main advantages are as follows: 1. High functional safety level ASIL C (D), industry-leading 2. High-voltage and low-voltage channel isolation, independent current dual-channel measurement 3. The module is based on shunt technology and Hall technology 4. Compact design of integrated bus 5. Suitable for high-voltage battery system: 400V / 800V including insulation system 6. Support CAN bus communication

Application scenarios:

Due to the continuous and rapid development of new energy vehicles, the health and safety issues of automotive power batteries have gradually been put on the agenda. If the power battery current is too large or the temperature is too high, it will easily damage the internal structure of the battery or related accessories, thereby shortening the battery life. In severe cases, it may even cause the battery to catch fire, which poses a great threat to the health and safety of the vehicle, driver, passengers and surrounding personnel. In order to provide solutions to the above problems and promote the development of China's new energy vehicle market and the advancement of the new four modernizations of automobiles, Continental has developed a new high-voltage current sensor module (CSM). The module integrates shunt technology and Hall technology in a compact unit to achieve dual-channel current detection. While providing the battery management system with the current (dual-channel) parameters of the high-voltage battery, it also provides the temperature parameters of the sensor. The CSM will then provide the above information to the battery management system through the CAN interface. In addition to optimizing charging efficiency and protecting the battery, the CSM will also help detect mechanical failures to avoid fires caused by undetected failures.

Future prospects:

With the popularity of new energy vehicles, high-voltage current sensor modules will also become a rigid demand for high-voltage battery monitoring. In the future, they will support more battery status signals such as voltage, and can also be used for other new energy fuel cells (such as hydrogen fuel cells). Therefore, their applications will be more extensive, and the market assembly rate and market share will also increase steadily. In addition, the functional safety level of CSM products is as high as ASIL C (D), which can monitor various current and temperature indicators of high-voltage batteries more continuously and safely. Today, when functional safety is increasingly valued, it will be more and more favored by the market.

Golden Album Award Introduction:

The "Golden Collection Award" was initiated by Gasgoo with the aim of "discovering good companies, promoting good technologies, and achieving automotive people", and revolves around the theme of "Top 100 New Automotive Supply Chains in China". This year's Golden Collection Award focuses on ten sub-sectors: smart driving, smart cockpit, smart chassis, automotive software, automotive-grade chips, big data and artificial intelligence, powertrain and charging and swapping, thermal management, body and interior and exterior, and new materials. It selects outstanding companies and advanced technology solutions, showcases these outstanding companies and industry leaders to the industry and outside, and jointly promotes the development and progress of the industry.