Value-efficient electrical automotive battery checks in automotive improvement and manufacturing
For quick high quality testing of battery cells, GÖPEL digital has developed a robust and shortly configurable battery check bench that encompasses a modular design and excessive flexibility. The system consists of a central measurement know-how unit with a pc and monitor, a management cupboard, and a unit with all the facility electronics, and might be tailored to the person’s wants in a modular vogue.
The battery check bench provides an influence vary as much as 500 kW and checks within the voltage vary as much as 1,000 V DC with check currents of as much as 800 A DC. Insulation checks might be carried out with as much as 7.5 kV. Because of its regenerative functionality, the check resolution can be designed to be extremely energy-efficient. The scope of companies contains security checks and practical checks. These checks consider the situation of the cells, the impedance of the battery underneath alternating present, and the alternating present dynamics of the cell, and detect crucial defects. The check outcomes present details about electrochemical processes within the cell, ageing results, and inside resistance fluctuations throughout totally different frequencies.
As a part of the practical check, the GÖPEL digital check system communicates with the battery administration system (BMS) by way of CAN-BUS. The battery is charged with a prescribed and outlined charging pulse, discharged, and at last the “state of cost” is checked. After the battery is discharged, the vitality required for that is fed again into the facility grid by the check resolution, guaranteeing excessive vitality effectivity and price financial savings.
On the finish of the safety and practical checks, all check outcomes are routinely exported to a database within the manufacturing division in individually configurable studies. Earlier than supply, the system checks the quiescent present to make sure that no pointless shoppers can drain the battery. As well as, the specified state of cost is ensured, the ultimate sensor knowledge is learn out, error reminiscence entries are in contrast, and at last, the top buyer software program is flashed onto the battery.
