Keysight Technologies and Jiyun Technologies develop a tailored, compact battery test system for electric vehicles (EVs)
Range limitations and safety concerns remain consumer obstacles for purchasing electric vehicles. To address these concerns and facilitate the rapid launch of new electric vehicles, solid testing and performance verification of battery systems is paramount.
Keysight has delivered a tailored battery test system (BTS) to Jiyun Technologies, which includes the company’s regenerative power supplies (RPS7900 Series), Data Acquisition System (DAQ973A), Controller Area Network Interface (CAN) Bus communication interfaces and other hardware products. The dedicated test software used in the BTS was adopted from Keysight’s PathWave software portfolio, and the custom system can reach a maximum output voltage of 1000V, a current level of up to 540A and a maximum power level of 180kW.
Keysight optimised the BTS to be compact while meeting the needs of the tailored battery pack testing. In addition to collecting basic information such as battery voltage, current and thermal data, the battery management system (BMS) is also integrated into the communication structure to efficiently gather data and provide access to all parameters through a single software interface.
It is based on regenerative power components to achieve 90% power efficiency that reduces operational costs while minimising heat dissipation, as well as reducing the associated costs of required cooling systems.
“The testing needs for electrical vehicles will pose a challenge for the foreseeable future and depending on specific customer needs, products need to be adaptable,” stated Jian-Rui Ma of Keysight Technologies.