VEHICLE, MAINTENANCE DEVICE, MAINTENANCE SERVICE SYSTEM, AND MAINTENANCE SERVICE METHOD
First Claim
Patent Images
1. A vehicle comprising:
- a plurality of electronic control units arranged to electronically control an action of the vehicle;
an on-vehicle network connected with the electronic control units; and
an externally-connecting electronic control unit operable to interface the on-vehicle network to a maintenance device outside the vehicle,wherein the externally-connecting electronic control unit performs an authenticate process on the maintenance device in order to decide a range in which the maintenance device can access the electronic control units.
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Abstract
The vehicle includes electronic control units, and performs an authentication process to judge the validity of an external device outside the vehicle, e.g. a maintenance device, which tries accessing the electronic control unit. Based on the result of the judgment, the vehicle decides a range in which the maintenance device can access the electronic control unit. In the authentication, e.g. both the maintenance device and the vehicle use authentication microcomputers respectively. According to the invention, an external device outside the vehicle can be inhibited from making an unwanted access to the electronic control unit of the vehicle.
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Citations
14 Claims
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1. A vehicle comprising:
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a plurality of electronic control units arranged to electronically control an action of the vehicle; an on-vehicle network connected with the electronic control units; and an externally-connecting electronic control unit operable to interface the on-vehicle network to a maintenance device outside the vehicle, wherein the externally-connecting electronic control unit performs an authenticate process on the maintenance device in order to decide a range in which the maintenance device can access the electronic control units. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A vehicle comprising:
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a plurality of electronic control units arranged to electronically control an action of the vehicle; an on-vehicle network connected with the electronic control units; and an externally-connecting electronic control unit operable to interface the on-vehicle network to a maintenance device outside the vehicle, wherein the externally-connecting electronic control unit has an authentication microcomputer, and the authentication microcomputer performs an authentication process on the maintenance device in order to decide whether or not to permit the maintenance device to access the electronic control unit.
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8. A vehicle comprising:
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a plurality of electronic control units arranged to electronically control an action of the vehicle; an on-vehicle network connected with the electronic control units; and an externally-connecting electronic control unit for interfacing the on-vehicle network to an external device outside the vehicle, wherein the externally-connecting electronic control unit performs an authentication process on the external device outside the vehicle in order to decide whether or not to permit the external device to access the electronic control unit.
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9. A maintenance device for supporting maintenance of a vehicle having a plurality of electronic control units operable to electrically control an action of the vehicle, comprising:
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an authentication microcomputer connectable with an externally-connecting electronic control unit of the vehicle; and a microcomputer operable to control the maintenance support, wherein the authentication microcomputer and the externally-connecting electronic control unit connected therewith perform an authentication process on each other, and a range in which the microcomputer operable to control the maintenance support can access the electronic control unit of the vehicle is decided according to a result of the authentication process by the externally-connecting electronic control unit. - View Dependent Claims (10)
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11. A maintenance service system, comprising:
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a maintenance device for supporting maintenance of a vehicle having a plurality of electronic control units operable to electrically control an action of the vehicle; and an online server operable to manage maintenance information of the vehicle, wherein the maintenance device is allowed to access maintenance information in the online server on condition that the vehicle, maintenance device and online server have been authenticated as results of authentication processes between the vehicle and maintenance device, between the maintenance device and online server, and between the online server and vehicle, and a range in which the maintenance device can access the electronic control unit of the vehicle is decided according to a result of the authentication process between the vehicle and maintenance device. - View Dependent Claims (12)
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13. A vehicle maintenance service method, using a maintenance device for supporting maintenance of a vehicle having a plurality of electronic control units operable to electrically control an action of the vehicle, and an online server operable to manage maintenance information of the vehicle, comprising:
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a first step of performing an authentication process between the vehicle and maintenance device; a second step of performing an authentication process between the maintenance device and online server; a third step of performing an authentication process between the online server and vehicle; a fourth step of accessing maintenance information of the online server by the maintenance device on condition that the vehicle, maintenance device, and online server have been authenticated as results of the first to third steps; and a fifth step of accessing the electronic control unit of the vehicle by the maintenance device in a range determined according to a result of the authentication process between the maintenance device and vehicle. - View Dependent Claims (14)
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Specification