CMC optimises battery power and protects against failures

Batteries are at the heart of every electric vehicle. With its battery management systems, Marquardt ensures they operate reliably for a long time. The new Cell Module Controller (CMC) is a milestone in developing these systems, which the company is presenting at the Battery Show. The CMC monitors each battery cell in real-time. The master control unit can thus process data to optimise battery performance and protect against failure. In addition to mobile applications, the CMC can be used in stationary energy systems.

Imbalances such as deep discharge, overcharging and temperature peaks are important parameters that need to be monitored in lithium-ion batteries to ensure safety. The CMC controls this by monitoring each cell and providing important data on the condition and performance of the battery. In the event of problems, the controller informs the master control unit, which decides what to do: charge, cool down or rebalance. The balancing is necessary, for example, if some of the hundreds of cells that make up a battery are not fully charged. This leads to imbalances and the loss of uniform cell voltage in the battery pack. Such scenarios are prevented by real-time control and monitoring. The CMC optimises the operating status, protects against overcharging and overheating and increases the safety and longevity of the battery. The control unit, therefore, reduces the likelihood of battery failure and prevents the high costs associated with replacement. In the long term, this results in considerable savings potential.

The CMC is compatible with a wide range of battery chemistries and form factors. AFE without software dependencies serve as a communication interface to other ECUs in the system, making the CMC versatile and easy to integrate. The CMC therefore offers maximum flexibility for car, truck and cell manufacturers. In addition to the automotive sector, it is also suitable for integration into stationary battery systems. The design is scalable and is constantly being updated to meet evolving industry standards and customer requirements. For example, The company is working on wireless variants of the CMCs that aim to improve the adaptability and installation efficiency of the system and offer even greater flexibility and ease of use in various applications.

The company will provide further information at the Battery Show in Stuttgart, June 18 to 20.