Upgrading method based on on-board OTA terminal fault-tolerance design

• Main Authors: ZHANG HANGQI, TU YANKAI, CAO HONGXIA, WEN XI, CHEN RUTAO
• Format: Patent
• Language: Chinese; English
• Published: 13.07.2018
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PERFORMING OPERATIONS; TRANSMISSION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

The invention discloses an upgrading method based on on-board OTA terminal fault-tolerance design. The upgrading method comprises steps that a main micro-processing unit MCU and a slave micro-processing unit MCU are used to run the same program, and are used to receive data transmitted by a wireless communication module via an SPI communication interface at the same time; mutual-data verificationis carried out by the SPI communication interface between the main micro-processing unit MCU and the slave micro-processing unit MCU, and then the normal data communication of the SPI communication interface is guaranteed; the main micro-processing unit MCU and the slave micro-processing unit MCU are used to carry out internal judgement of issued CAN data packets, and are used to determine that the main micro-processing unit MCU is used to transmit upgrading data packets to an internal electronic control unit ECU by a main CAN transceiver, and the slave micro-processing unit MCU is used to monitor the transmitted data