Immobilizer device and motorcycle including same
First Claim
1. An immobilizer device comprising:
- a transpondera key which incorporates the transponder;
an engine ECU; and
an immobilizer ECU which receives a first identification information transmitted from the key and inputs the first identification information to the engine ECU;
whereinthe immobilizer ECU includes a second identification information transmitting device which inputs a second identification information to the engine ECU,the engine ECU includes a first identification information authentication device which authenticates the first identification information based on a first comparison data set in the engine ECU corresponding to the first identification information, and a second identification information authentication device which authenticates the second identification information based on a second comparison data set in the engine ECU corresponding to the second identification information, andthe engine ECU is configured to allow an engine to start when the first identification information is authenticated as agreeing with the first comparison data and the second identification information authenticated by the second identification information is authenticated as agreeing with the second comparison data.
1 Assignment
0 Petitions
Accused Products
Abstract
An immobilizer device for a vehicle includes a key which has a transponder, an engine ECU, and an immobilizer ECU which receives a first identification information transmitted from the key and inputs the identification information to the engine ECU via a first identification information transmitting device. The immobilizer ECU includes a second identification information transmitting device which inputs second, different identification information to the engine ECU. The engine ECU includes a first and second identification information authentication devices which respectively authenticate the first identification information and the second identification information based on first and second comparison data set in the engine ECU. The engine ECU allows an engine to start when the first and second identification information are appropriately authenticated. The first identification information is based on random numbers generated by the engine ECU.
6 Citations
20 Claims
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1. An immobilizer device comprising:
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a transponder a key which incorporates the transponder; an engine ECU; and an immobilizer ECU which receives a first identification information transmitted from the key and inputs the first identification information to the engine ECU;
whereinthe immobilizer ECU includes a second identification information transmitting device which inputs a second identification information to the engine ECU, the engine ECU includes a first identification information authentication device which authenticates the first identification information based on a first comparison data set in the engine ECU corresponding to the first identification information, and a second identification information authentication device which authenticates the second identification information based on a second comparison data set in the engine ECU corresponding to the second identification information, and the engine ECU is configured to allow an engine to start when the first identification information is authenticated as agreeing with the first comparison data and the second identification information authenticated by the second identification information is authenticated as agreeing with the second comparison data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A vehicle including an engine and an immobilizer device, the immobilizer device comprising:
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a transponder a key which incorporates the transponder; an engine ECU; and an immobilizer ECU which receives a first identification information transmitted from the key and inputs the first identification information to the engine ECU;
whereinthe immobilizer ECU includes a second identification information transmitting device which inputs a second identification information to the engine ECU, the engine ECU includes a first identification information authentication device which authenticates the first identification information based on a first comparison data set in the engine ECU corresponding to the first identification information, and a second identification information authentication device which authenticates the second identification information based on a second comparison data set in the engine ECU corresponding to the second identification information, and the engine ECU is configured to allow the engine to start when the first identification information is authenticated as agreeing with the first comparison data and the second identification information authenticated by the second identification information is authenticated as agreeing with the second comparison data. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An immobilizer device, comprising:
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a key, which includes a power source, a password generating device, and a transponder; an immobilizer ECU which is connected to a power source and includes an antenna, a reception circuit, a first transmission circuit, and a second transmission circuit; and an engine ECU which includes an interface circuit, a random number generator, a first collation device, a second collation device, and a controller;
whereinthe immobilizer ECU receives a first identification information transmitted from the key and inputs the first identification information to the engine ECU; the second transmission circuit of the immobilizer ECU inputs a second identification information to the engine ECU, the first collation device of the engine ECU authenticates the first identification information and the second collation device which authenticates the second identification information, and the engine ECU is configured to allow an engine to start when the first identification information authenticated by the collation device agrees with a first comparison data corresponding to the first identification information and the second identification information authenticated by the second collation device agrees with a second comparison data corresponding to the second identification information. - View Dependent Claims (17, 18, 19, 20)
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Specification