Dual-Hall current sensor detection system and method used for electric vehicle

• Main Authors: SHI YING, CHEN QIHONG, DENG JIAN, SUN XIAOMING, ZHANG LIYAN, XIE CHANGJUN, QUAN SHUHAI, YING ANNA, HUANG LIANG
• Format: Patent
• Language: Chinese; English
• Published: 17.10.2012
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention provides a dual-Hall current sensor detection system and method used for an electric vehicle. A battery pack anode is connected with the input end of a first Hall current sensor; the output end of the first Hall current sensor is divided into two paths; one path is successively connected with a second Hall current sensor and a second IGBT module; the other path is connected with a first IGBT (Insulated Gate Bipolar Translator) module; after being joined, the two paths are connected to a battery pack cathode; a first measurement unit and a second measurement unit are respectively connected with the first Hall current sensor and the second Hall current sensor; the output end of the first measurement unit and the output end of the second measurement unit are respectively connected with a microprocessor; and the output end of the microprocessor is respectively connected with the control ends of the first IGBT module and the second IGBT module by a first driving protection circuit and a second drivin