Electronic Control Unit for Vehicle and Method of Writing Data
AssigneeHitachi Automotive Systems, Ltd.
InventorsYusuke Abe, Koji Yuasa, Toshihisa Arai
Life of this patent
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Abstract
An electronic control unit for a vehicle including a nonvolatile memory capable of erasing and writing data electrically and two buffers to acquire, by communication, divided data obtained by dividing a program by predetermined size. Then, in parallel with using the two buffers alternately to receive divided data, the electronic control unit for a vehicle uses one buffer that is not used to receive divided data to write the received divided data into the nonvolatile memory.
Claims12
An electronic control unit for a vehicle including a nonvolatile memory in which data can be written and erased electronically and two buffers, in which the electronic control unit for a vehicle is able to receive, by communication, divided data obtained by dividing a program by predetermined size, comprising a processor which, in parallel with receiving the divided data by using the two buffers alternately, writes the divided data received by using one buffer that is not used to receive the divided data, into the nonvolatile memory.
A method of writing data by an electronic control unit for a vehicle including a nonvolatile memory in which data can be written and erased electronically and two buffers, the method comprising the steps of:
- in parallel with receiving divided data obtained by dividing a program by predetermined size, by using the two buffers alternately, writing the received divided data by using one buffer that is not used to receive the divided data.
Dependencies are inferred from the claim text.