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US 6,480,928 B2Granted
Memory rewriting system for vehicle controller
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsTetsuya Yashiki, Masanori Matsuura, Naohiko Mizuo
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AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsTetsuya Yashiki, Masanori Matsuura, Naohiko Mizuo
Estimating the term…
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.
A rewriting device for transferring a first program to a vehicle controller to rewrite a second program stored in a memory of the vehicle controller with the first program;
A vehicle controller for receiving a first program from a rewriting device to rewrite a second program stored in a memory mounted therein with the first program;
A memory rewriting system for a vehicle controller for transferring a first program from a rewriting device to a vehicle to rewrite a second program stored in a memory of the vehicle controller with the first program;
A method for transferring a first program from a rewriting device to a vehicle controller to rewrite a second program stored in a memory of the vehicle controller with the first program, the method comprising:
Dependencies are inferred from the claim text.