Method for detecting unit cells of grouped cells in electric automobile under working state

• Main Authors: SUN FENGCHUN, LIU PENG, WANG ZHENPO
• Format: Patent
• Language: Chinese; English
• Published: 24.04.2013
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PERFORMING OPERATIONS; PHYSICS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TESTING; TRANSPORTING; VEHICLES IN GENERAL

The invention provides a method for detecting unit cells of grouped cells in an electric automobile under the working state. The method includes: enabling a cell observation and control module to achieve collection and real-time detection on operation state information of the unit cells; informing the state information of the unit cells to a vehicle-mounted monitoring system in a bus mode, and finishing the display and alarm function of the state of the cells; informing the state information of the unit cells to a vehicle control unit or a motor controller in a bus mode, and adjusting the unit cells to enable all unit cells in a cell pack to achieve the balanced and consistent state; supplying technical data to cell group technology improvement and providing basis for analyzing cell system fault in off line mode by building a unit cell using record file; and transmitting the operation state information of the unit cells to a monitoring center and providing electric energy supplying scheduling and navigation s