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Memory check apparatus and method for checking data upon retrieval from memory

  • US 6,216,084 B1
  • Filed: 07/29/1999
  • Issued: 04/10/2001
  • Est. Priority Date: 10/08/1998
  • Status: Expired due to Term
First Claim
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1. A memory check apparatus for checking abnormality of data stored in a memory to be used in control value calculations for a vehicle, the apparatus comprising:

  • an execution order determination unit for determining an order of execution of a plurality of tasks which execute control value calculation programs;

    an engine control module including the plurality of tasks; and

    a memory retrieval module including a processing of retrieving the data from the memory, the memory retrieval module being for checking abnormality of only the retrieved data before being used in the control value calculation programs and setting the retrieved data to an initialized value to be used in the control value calculation programs in place of the retrieved data.

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