Cell voltage monitoring (CVM) system specialist Smart Testsolutions has developed a new system for series applications. Compared to its predecessor, the G5S, the G6S product platform is characterized by a more compact design and lower costs.
Like all solutions for CVM on electrochemical cells from Smart Testsolutions, the G6S also has a modular design. A measuring module comprises 54 channels, and up to nine measuring modules can be connected in series. A CVM system based on the G6S offers 486 measuring channels. The measuring modules are supplemented by a target market-specific head module, which is equipped with the data interfaces prevailing in the respective target market. In addition to automotive, the module addresses the marine, aerospace and electrolysis markets.
Source: Smart Testsolutions
By using the same measurement modules in all application areas, economies of scale are achieved in production. Further cost advantages result from the use of integrated circuits instead of a discrete structure. A microchip is used as the technology basis for data acquisition on each measuring module. The measured values recorded by the ASIL-D-certified ICs are collected in a central microcontroller on the head module.
Other components of a CVM G6S system include mounting parts for the mechanical integration of the CVM near the cell stack, the necessary connection cable harnesses and the cell contacting units that are required for tapping the voltages at the individual bipolar plates. The so-called cell voltage pickups must be designed differently depending on the nature of the cell stack, and the company now has several variations under development or available.
