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    • 9. 发明授权
    • Memory rewriting system for vehicle controller
    • 车载控制器内存重写系统
    • US06480928B2
    • 2002-11-12
    • US09802202
    • 2001-03-08
    • Tetsuya YashikiMasanori MatsuuraNaohiko Mizuo
    • Tetsuya YashikiMasanori MatsuuraNaohiko Mizuo
    • G06F1200
    • G11C16/102G06F8/60
    • A memory rewriting system for a vehicle controller is provided. The memory rewriting system transfers a first program from a rewriting device to the vehicle to rewrite a second program stored in a memory of the vehicle controller with the first program. The first program is transferred as data blocks. Each of the data blocks includes a program code field, a first address field and a second address field. The program code field contains a partial program code of the first program. The first address field contains a leading address of the memory in which the partial program code is stored. The second address field contains a leading address of the memory in which a following partial program code transferred by another block is to be stored. The data blocks are assembled in the rewriting device. Each data block is may be a fixed length or a variable length. When the data block is transferred to the vehicle controller, a first address in the first address field of the current transferred data block is compared with a second address in the second address field of the preceding transferred data block. If the first address included in the current data block is not equal to the second address included in the preceding data block, it is determined that the current transferred data block is not correct. The vehicle controller requests the rewriting device to retransfer a correct data block that has said second address in the first address field.
    • 提供了一种用于车辆控制器的存储器重写系统。 存储器重写系统将第一程序从重写装置传送到车辆,以用第一程序重写存储在车辆控制器的存储器中的第二程序。 第一个程序作为数据块传送。 每个数据块包括程序代码字段,第一地址字段和第二地址字段。 程序代码字段包含第一程序的部分程序代码。 第一个地址字段包含存储部分程序代码的存储器的前导地址。 第二地址字段包含存储器的前导地址,其中存储由另一个块传送的以下部分程序代码。 数据块被组装在重写装置中。 每个数据块可以是固定长度或可变长度。 当将数据块传送到车辆控制器时,将当前传送数据块的第一地址字段中的第一地址与先前传送数据块的第二地址字段中的第二地址进行比较。 如果当前数据块中包含的第一地址不等于前面数据块中包含的第二地址,则确定当前传送的数据块不正确。 车辆控制器请求重写装置在第一地址字段中重传具有所述第二地址的正确数据块。