Fault diagnosis data recording system and method
First Claim
Patent Images
1. A fault diagnosis data recording system for use in an automotive vehicle, which includes a plurality of nodes of the vehicle interconnected by a multiplex communication line, the fault diagnosis data recording system comprising:
- a first node of the vehicle configured to perform a fault detection of the first node; and
a plurality of second nodes of the vehicle connected to the first node via the multiplex communication line, each of the plurality of second nodes configured to perform a fault detection of the second node and including a storage unit to store at least a part of result data of the fault detection performed by the first node,wherein the first node comprises a data transmitting unit configured to transmit result data of the fault detection performed by the first node to the plurality of second nodes via the multiplex communication line, andwherein each of the plurality of second nodes comprises a storage declaration frame transmitting unit configured to transmit, after a temporary storage of the result data, received via the multiplex communication line, in the storage unit of the second node is performed, a storage declaration frame, indicating that the second node has completed the temporary storage of the result data, to other nodes of the plurality of second nodes via the multiplex communication line.
1 Assignment
0 Petitions
Accused Products
Abstract
In a fault diagnosis data recording system including a plurality of nodes interconnected by a multiplex communication line, a first node is provided to perform fault detection of the first node, and a second node connected to the first node via the multiplex communication line is provided to have a storage unit. The first node and the second node are configured to store at least a part of result data of the fault detection performed by the first node, into the storage unit of the second node.
24 Citations
12 Claims
-
1. A fault diagnosis data recording system for use in an automotive vehicle, which includes a plurality of nodes of the vehicle interconnected by a multiplex communication line, the fault diagnosis data recording system comprising:
-
a first node of the vehicle configured to perform a fault detection of the first node; and a plurality of second nodes of the vehicle connected to the first node via the multiplex communication line, each of the plurality of second nodes configured to perform a fault detection of the second node and including a storage unit to store at least a part of result data of the fault detection performed by the first node, wherein the first node comprises a data transmitting unit configured to transmit result data of the fault detection performed by the first node to the plurality of second nodes via the multiplex communication line, and wherein each of the plurality of second nodes comprises a storage declaration frame transmitting unit configured to transmit, after a temporary storage of the result data, received via the multiplex communication line, in the storage unit of the second node is performed, a storage declaration frame, indicating that the second node has completed the temporary storage of the result data, to other nodes of the plurality of second nodes via the multiplex communication line. - View Dependent Claims (2, 3)
-
-
4. A fault diagnosis data recording system for use in an automotive vehicle, comprising:
-
a plurality of nodes of the vehicle interconnected by a multiplex communication line in the vehicle, each of the plurality of nodes being configured to perform a fault detection of the respective node and including a storage unit to store at least a part of result data of the fault detection performed by another node among the plurality of nodes; a first node among the plurality of nodes of the vehicle comprising a data transmitting unit configured to transmit result data of the fault detection performed by the first node to other nodes of the plurality of nodes via the multiplex communication line; and a plurality of second nodes among the plurality of nodes of the vehicle, each of the plurality of second nodes comprising a storage declaration frame transmitting unit configured to transmit, after a temporary storage of the result data, received via the multiplex communication line, in the storage unit of the second node is performed, a storage declaration frame, indicating that the second node has completed the temporary storage of the result data, to other nodes of the plurality of second nodes via the multiplex communication line. - View Dependent Claims (5, 6, 7, 8, 9, 10)
-
-
11. A fault diagnosis data recording method for use in an automotive vehicle, which records diagnosis data in a plurality of nodes of the vehicle interconnected by a multiplex communication line, the method comprising the steps of:
-
providing a first node among the plurality of nodes of the vehicle; providing a plurality of second nodes among the plurality of nodes of the vehicle connected to the first node via the multiplex communication line, each of the plurality of second nodes configured to perform a fault detection of the second node and including a storage unit; performing, by the first node, a fault detection of the first node; transmitting, by a data transmitting unit of the first node, result data of the fault detection performed by the first node to the plurality of second nodes via the multiplex communication line; storing, by each of the second nodes, at least a part of the result data of the fault detection performed by the first node in the corresponding storage unit, transmitting, by a storage declaration frame transmitting unit of each of the plurality of second nodes, after a temporary storage of the result data, received via the multiplex communication line, in the storage unit of the second node is performed, a storage declaration frame, indicating that the second node has completed the temporary storage of the result data, to other nodes of the plurality of second nodes via the multiplex communication line.
-
-
12. A fault diagnosis data recording method for use in an automotive vehicle, comprising the steps of:
-
providing a plurality of nodes of the vehicle interconnected by a multiplex communication line in the vehicle, each of the plurality of nodes being configured to perform a fault detection of the respective node and including a storage unit to store at least a part of result data of the fault detection performed by another node among the plurality of nodes; transmitting, by a data transmitting unit of a first node among the plurality of nodes of the vehicle, result data of the fault detection performed by the first node to other nodes of the plurality of nodes via the multiplex communication line; and transmitting, by a storage declaration frame transmitting unit of each of a plurality of second nodes among the plurality of nodes of the vehicle, after a temporary storage of the result data, received via the multiplex communication line, in the storage unit of the second node is performed, a storage declaration frame, indicating that the second node has completed the temporary storage of the result data, to other nodes of the plurality of second nodes via the multiplex communication line.
-
Specification