Method for operating control devices of a motor vehicle which communicate via a databus
First Claim
1. A method of operating control devices of a motor vehicle which communicate through at least one databus, the control devices including a gateway control device for controlling a transmission of data on the at least one databus and a plurality of motor vehicle control devices controlling a functioning of assemblies of the motor vehicle, which comprises the steps of:
- generating centrally, via one of the control devices, a diagnostic message being valid for all others of the control devices;
transmitting the diagnostic message to the other control devices on the at least one databus; and
performing fault storage in the other control devices only if a fault storage function is activated by the diagnostic message.
3 Assignments
0 Petitions
Accused Products
Abstract
A method operates control devices of a motor vehicle which communicate via at least one databus. A gateway control device which controls the transmission of data on the databus, or on each databus, and a plurality of motor vehicle control devices which control the functions of an assembly such as, for example, of an engine, of a gearbox or of an air conditioning system of the motor vehicle, are connected to the databus, or to each databus. One of the control devices, preferably the gateway control device, generates centrally a diagnostic message which is valid for the other control devices, preferably for the motor vehicle control devices, and transmits the diagnostic message to the other control devices on the databus, or on each databus. The other control devices then exclusively perform fault storage if a fault storage function is activated by the diagnostic message.
4 Citations
11 Claims
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1. A method of operating control devices of a motor vehicle which communicate through at least one databus, the control devices including a gateway control device for controlling a transmission of data on the at least one databus and a plurality of motor vehicle control devices controlling a functioning of assemblies of the motor vehicle, which comprises the steps of:
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generating centrally, via one of the control devices, a diagnostic message being valid for all others of the control devices; transmitting the diagnostic message to the other control devices on the at least one databus; and performing fault storage in the other control devices only if a fault storage function is activated by the diagnostic message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification