Control unit having a deactivatable interface
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsStefan Krimmer, Rainer Stahl
Life of this patent
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Abstract
A control unit having a microprocessor and at least one electronic memory for storing a program-controlled sequence control for a motor vehicle and a first electronic interface for transmitting the program code of the sequence control from an external data transmission device into the memory and also having a second electronic interface are provided. To prevent manipulation of the contents of the memory, the first electronic interface is irreversibly deactivated after its initial use.
Claims20
Control unit comprising:
- a microprocessor;
- at least one electronic memory for storing a program-controlled sequence control for a motor vehicle;
- a first electronic interface for transmitting a program code of the sequence control from an external data transmission device to the memory;
- and
- a second electronic interface;
- wherein the first electronic interface is irreversibly deactivated.
Electronic immobilizer of a motor vehicle, comprising:
- a control unit, comprising:
- a microprocessor;
- at least one electronic memory for storing a program-controlled sequence control for a motor vehicle;
- a first electronic interface for transmitting a program code of the sequence control from an external data transmission device to the memory;
- and
- a second electronic interface;
- wherein the first electronic interface is irreversibly deactivated.
Method for irreversible deactivation of a first electronic interface of a control unit having a microprocessor and an electronic memory for storing a program-controlled sequence control and a second electronic interface, the method comprising the acts of:
- inputting a program code forming the sequence control into the electronic memory via the first electronic interface;
- and
- irreversibly deactivating the first electronic interface after inputting the program code.
Dependencies are inferred from the claim text.