Method for applying control data for an electronic motor vehicle control unit
First Claim
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1. A method for applying/updating control data for an electronic motor vehicle control unit, which comprises the steps of:
- storing control data records in a first memory area of a nonvolatile memory, the control data records relate to at least one of a motor vehicle component which is to be controlled and a motor vehicle type;
copying a control data record of the control data records to a second memory area of the nonvolatile memory in order to apply/update the control data record;
storing a section of the control data record stored in the second memory area in a further memory;
accessing the section of the control data record stored in the further memory, and updating the control data of the section of the control data record which is to be applied resulting in updated control data, the updated control data is to be used for controlling the motor vehicle component which is to be controlled; and
writing the updated control data back to the second memory area resulting in an updated control data record.
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Abstract
A method is described that can be used to apply mass-produced control units without special application tools. In this context, a data record that is to be applied from a first memory area of a flash memory is copied over to a second memory area of the flash memory. The data that are to be applied are updated in sections in a RAM and are then written back to the second memory area. The applied control data record is finally copied back to its original positions in the first memory area.
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Citations
12 Claims
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1. A method for applying/updating control data for an electronic motor vehicle control unit, which comprises the steps of:
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storing control data records in a first memory area of a nonvolatile memory, the control data records relate to at least one of a motor vehicle component which is to be controlled and a motor vehicle type;
copying a control data record of the control data records to a second memory area of the nonvolatile memory in order to apply/update the control data record;
storing a section of the control data record stored in the second memory area in a further memory;
accessing the section of the control data record stored in the further memory, and updating the control data of the section of the control data record which is to be applied resulting in updated control data, the updated control data is to be used for controlling the motor vehicle component which is to be controlled; and
writing the updated control data back to the second memory area resulting in an updated control data record. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification