Vehicle abnormality monitoring apparatus
First Claim
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1. A vehicle abnormality monitoring apparatus comprising:
- an electronic unit including a data memory for storing abnormality analysis data used for analyzing abnormality of vehicle equipment, the electronic unit being connectable to an external tool through a communication line; and
a storage unit provided separately from the electronic unit for storing the abnormality analysis data when transmitted from the data memory through communication, the storage unit being provided in a management station provided outside a vehicle,the electronic unit being configured to perform a memory operation of erasing the abnormality analysis data from the data memory after transmission of the abnormality analysis data to the storage unit, andthe electronic unit being further configured to notify the management station of a request for returning of the abnormality analysis data when output of the abnormality analysis data is requested from the external tool and output the abnormality analysis data returned from the management station to the external tool,the abnormality analysis data being data indicating an operating status of the vehicle equipment at the time when an abnormality of the vehicle equipment is detected as a result of abnormality monitoring on the vehicle equipment performed based on a sensor output from a sensor for detecting a physical quantity which changes depending on the operating status of the vehicle equipment, andthe abnormality analysis data requested for return is the same data as that transmitted from the data memory of the electronic unit to the storage unit of the management station.
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Abstract
An engine control unit has a data memory for storing freeze frame data that is data indicating the operating status of vehicle equipment at the time when an abnormality of the vehicle equipment is detected. The engine control unit saves the freeze frame data stored in the data memory in a storage unit of a management station outside the vehicle through radio communication. The engine control unit determines the properness of the communication and performs a memory operation for erasing the relevant freeze frame data from the data memory based on a determination that the communication has been properly performed.
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Citations
22 Claims
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1. A vehicle abnormality monitoring apparatus comprising:
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an electronic unit including a data memory for storing abnormality analysis data used for analyzing abnormality of vehicle equipment, the electronic unit being connectable to an external tool through a communication line; and a storage unit provided separately from the electronic unit for storing the abnormality analysis data when transmitted from the data memory through communication, the storage unit being provided in a management station provided outside a vehicle, the electronic unit being configured to perform a memory operation of erasing the abnormality analysis data from the data memory after transmission of the abnormality analysis data to the storage unit, and the electronic unit being further configured to notify the management station of a request for returning of the abnormality analysis data when output of the abnormality analysis data is requested from the external tool and output the abnormality analysis data returned from the management station to the external tool, the abnormality analysis data being data indicating an operating status of the vehicle equipment at the time when an abnormality of the vehicle equipment is detected as a result of abnormality monitoring on the vehicle equipment performed based on a sensor output from a sensor for detecting a physical quantity which changes depending on the operating status of the vehicle equipment, and the abnormality analysis data requested for return is the same data as that transmitted from the data memory of the electronic unit to the storage unit of the management station. - View Dependent Claims (2, 3, 4, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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5. A vehicle abnormality monitoring apparatus comprising:
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an electronic unit including a data memory for storing abnormality analysis data used for analyzing abnormality of vehicle equipment, the electronic unit being connectable to an external tool through a communication line; and a storage unit provided separately from the electronic unit for storing the abnormality analysis data when transmitted from the data memory through communication, the storage unit being provided in a management station provided outside a vehicle, the electronic unit being configured to perform a memory operation of erasing the abnormality analysis data from the data memory after transmission of the abnormality analysis data to the storage unit; the electronic unit being further configured to notify the management station of a request for returning of the abnormality analysis data when output of the abnormality analysis data is requested from the external tool and output the abnormality analysis data returned from the management station to the external tool; the abnormality analysis data being freeze frame data indicating an operating status of the vehicle equipment at the time when an abnormality of the vehicle equipment is detected as a result of abnormality monitoring on the vehicle equipment performed based on a sensor output from a sensor for detecting a physical quantity which changes depending on the operating status of the vehicle equipment; the electronic unit being configured to erase the freeze frame data by determining properness of the communication; the management station being configured to manage the freeze frame data outside the vehicle; saving of the freeze frame data through communication being executed through radio communication with the management station; the electronic unit being configured to determine that the communication is properly performed based on information indicating proper reception of the freeze frame data provided by the management station; and the electronic unit being further configured to re-transmit the freeze frame data to the management station, when the information indicating proper reception of the freeze frame data is not provided from the management station within a predetermined period after the transmission of the freeze frame data. - View Dependent Claims (6, 7)
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22. A method of operating a vehicle abnormality monitoring apparatus, the method comprising:
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storing abnormality analysis data used for analyzing abnormality of vehicle equipment in a data memory of an electronic unit, the electronic unit being connectable to an external tool through a communication line; and transmitting, from the electronic unit, the abnormality analysis data stored in the data memory to a storage unit provided separately from the electronic unit for storing the abnormality analysis data, the storage unit being provided in a management station provided outside a vehicle; erasing the abnormality analysis data from the data memory after transmission of the abnormality analysis data to the storage unit; notifying the management station of a request for returning the abnormality analysis data when a request for output of the abnormality analysis data is received, in the electronic unit, from the external tool; receiving, in the electronic unit, the abnormality analysis data returned from the management station in response to said notifying; and outputting the abnormality analysis data returned from the management station to the external tool; the abnormality analysis data being data indicating an operating status of the vehicle equipment at the time when an abnormality of the vehicle equipment is detected as a result of abnormality monitoring on the vehicle equipment performed based on a sensor output from a sensor for detecting a physical quantity which changes depending on the operating status of the vehicle equipment, and the abnormality analysis data requested for return is the same data as that transmitted from the data memory of the electronic unit to the storage unit of the management station.
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Specification