PROGRAM REWRITING SYSTEM FOR VEHICLES
First Claim
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1. A vehicular program rewriting system comprising:
- a plurality of electronic control units each including a storage unit, which stores a program therein in a rewritable manner; and
a rewriting device for rewriting programs of the electronic control units;
wherein the rewriting device;
receives a plurality of rewriting data each of which includes a rewriting program, and combination appropriateness judging information by which it is judged whether or not a combination of rewriting data is appropriate;
judges whether or not the combination of rewriting data is appropriate using the combination appropriateness judging information; and
rewrites the programs of the electronic control units if the combination is judged as being appropriate.
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Abstract
A rewriting device of a program rewriting system for vehicles receives a plurality of pieces of rewriting data each including a rewriting program and also receives information of combination suitability determination used for determining whether the combination of the plurality of pieces of rewriting data is suitable or not. The rewriting device then uses the information of combination suitability determination to determine whether the combination of the plurality of pieces of rewriting data is suitable or not. If having determined that the combination is suitable, the rewriting device executes the rewriting of the programs of a plurality of electronic control devices.
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Citations
4 Claims
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1. A vehicular program rewriting system comprising:
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a plurality of electronic control units each including a storage unit, which stores a program therein in a rewritable manner; and a rewriting device for rewriting programs of the electronic control units; wherein the rewriting device; receives a plurality of rewriting data each of which includes a rewriting program, and combination appropriateness judging information by which it is judged whether or not a combination of rewriting data is appropriate; judges whether or not the combination of rewriting data is appropriate using the combination appropriateness judging information; and rewrites the programs of the electronic control units if the combination is judged as being appropriate. - View Dependent Claims (2, 3, 4)
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Specification