Method for identifying incompatibilities in a bus system comprising several control devices
First Claim
1. A method of identifying incompatibilities in a bus system of a motor vehicle which has several control devices, the method comprising the acts of:
- storing an identifier identifying the type of the corresponding control device in a first and in a second control device, the identifier permits a conclusion on the operating sequences implemented by the corresponding control device and/or on the hardware version of the corresponding control device;
storing version information identifying the sequence control of the corresponding control device in the first and in the second control device, the version information permits a conclusion on the operating sequences carried out by the corresponding control device and/or on the current status of the sequence control and/or on hardware version of the corresponding control device;
transmitting, by the first control device, its identifier and its first version information to the second control device;
accessing, by the second control device, a compatibility reference table which is stored in the second control device, the compatibility reference table indicates which combinations of identifiers and version information and thus which control devices and their corresponding sequence controls will communicate with the second control device in a compatible manner;
transmitting, by the second control device, its identifier and its second version information to the first control device; and
accessing, by the first control device, a compatibility reference table which is stored in the first control device, the compatibility reference table indicates which combinations of identifiers and version information and thus which control devices and their corresponding sequence controls will communicate with the first control device in a compatible manner, wherein a communication connection is established between the first and second control devices only when the compatibility reference table in each control device indicates that the first and second control devices can communicate in a compatible manner.
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Accused Products
Abstract
Control device identification information or an identifier identifying the type of the corresponding control device is stored in a first and in a second control device. Version information identifying the sequence control of the corresponding control device, such as a version number, is stored in the first and in the second control device. The first control device transmits its first control device identification information and/or its first version information to the second control device. The second control device accesses a compatibility reference table. The compatibility reference table indicates which combinations of control device identification information and version information, and thus which control devices and their corresponding sequence controls will communicate with the second control device in a compatible manner.
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Citations
19 Claims
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1. A method of identifying incompatibilities in a bus system of a motor vehicle which has several control devices, the method comprising the acts of:
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storing an identifier identifying the type of the corresponding control device in a first and in a second control device, the identifier permits a conclusion on the operating sequences implemented by the corresponding control device and/or on the hardware version of the corresponding control device; storing version information identifying the sequence control of the corresponding control device in the first and in the second control device, the version information permits a conclusion on the operating sequences carried out by the corresponding control device and/or on the current status of the sequence control and/or on hardware version of the corresponding control device; transmitting, by the first control device, its identifier and its first version information to the second control device; accessing, by the second control device, a compatibility reference table which is stored in the second control device, the compatibility reference table indicates which combinations of identifiers and version information and thus which control devices and their corresponding sequence controls will communicate with the second control device in a compatible manner; transmitting, by the second control device, its identifier and its second version information to the first control device; and accessing, by the first control device, a compatibility reference table which is stored in the first control device, the compatibility reference table indicates which combinations of identifiers and version information and thus which control devices and their corresponding sequence controls will communicate with the first control device in a compatible manner, wherein a communication connection is established between the first and second control devices only when the compatibility reference table in each control device indicates that the first and second control devices can communicate in a compatible manner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A bus system having several control devices, which identifies incompatibilities among the control devices, the bus system comprising:
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a first and second control device, each arranged to store an identifier identifying the type of the corresponding control device in a compatibility reference table, the identifier permits a conclusion on the operating sequences implemented by the corresponding control device and/or on the hardware version of the corresponding control device; store version information identifying the sequence control of the corresponding control device in the compatibility reference table, the version information permits a conclusion on the operating sequences carried out by the corresponding control device and/or on the current status of the sequence control and/or on hardware version of the corresponding control device; transmit its identifier and version information to the other control device; and access the compatibility reference table which is stored in the respective control device, the compatibility reference table indicates which combinations of identifiers and version information and thus which control devices and their corresponding sequence controls will communicate with the control device in a compatible manner, wherein a communication connection is established between the first and second control devices only when the compatibility reference table in each control device indicates that the first and second control devices can communicate in a compatible manner. - View Dependent Claims (12, 13, 14)
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15. Computer program product for identifying incompatibilities in a bus system having several control devices which is arranged in a motor vehicle, the computer program product, when implemented in a processor, causes the processor to perform the acts of:
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storing an identifier identifying the type of the corresponding control device in a second control device, the identifier permits a conclusion on the operating sequences implemented by the corresponding control device and/or on the hardware version of the corresponding control device; storing version information identifying the sequence control of the corresponding control device in the second control device, the version information permits a conclusion on the operating sequences carried out by the corresponding control device and/or on the current status of the sequence control and/or on hardware version of the corresponding control device; receiving, by the second control device, an identifier identifying the type of the corresponding control device and version information about a first control device from the first control device; accessing, by the second control device, a compatibility reference table which is stored in the second control device, the compatibility reference table indicates which combinations of identifiers and version information and thus which control devices and their corresponding sequence controls will communicate with the second control device in a compatible manner; transmitting, by the second control device, its identifier and its second version information to the first control device; and accessing, by the first control device, a compatibility reference table which is stored in the first control device, the compatibility reference table indicates which combinations of identifiers and version information and thus which control devices and their corresponding sequence controls will communicate with the first control device in a compatible manner, wherein a communication connection is established between the first and second control devices only when the compatibility reference table in each control device indicates that the first and second control devices can communicate in a compatible manner. - View Dependent Claims (16, 17, 18, 19)
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Specification