A Real-Time Android-Based Monitoring System for the Power Lithium-Ion Battery Used on EVs

For safe and reliable operation of lithium-ion batteries on electric vehicles (EVs), the online monitoring and states estimation of the batteries is necessary. To make it convenient for every vehicle owner to monitor the battery status of their vehicles anytime and anywhere, we designed a real-time Android-based monitoring system for lithium-ion batteries on EVs, which achieves an integration monitoring system of batteries, phones, computers for owners and repairs. The system is composed of an on-board monitoring device, android phone client, cloud server. Android phone collects and displays the batteries operation parameters through WIFI communication with the on-board monitoring device. Besides, the batteries data is stored in the local database and uploaded to the cloud server, which provides support for battery states estimation. To validate the feasibility of the real-time monitoring system we present, we built the actual test environment. Test results show that the batteries data is transmitted to owner's phone and displayed on it, which could help users monitor the batteries status conveniently.