Vehicle security system
First Claim
1. A vehicle security system comprising a first user interface, one or more electronic control units, connected through a communication channel, wherein vehicle functions related to said one or more electronic control units are accessible by using a first vehicle access code (VAC) or a second vehicle access code (VAC), wherein the first VAC defines a first level of access to the vehicle functions to which a user is allowed and the second VAC defines a second level of access to the vehicle functions to which a user is allowed, and wherein some or all information or data is communicated over said communication channel in an encrypted format, andwherein a secondary access code (SAC) is installed on said one or more control units and said first user interface, and said SAC is used to encrypt both the first and second VACs for at least the first time when installed on said one or more control units over said communication channel.
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Accused Products
Abstract
A vehicle security system comprising a first interface, an immobilizer electronic control unit and an immobilizing electronic control unit, each of which is connected to a CAN bus. The security functions are installed on the immobilizer electronic control unit which can be accessed by a user using a vehicle access code. The information is communicated over the CAN bus in an encrypted format.
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Citations
10 Claims
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1. A vehicle security system comprising a first user interface, one or more electronic control units, connected through a communication channel, wherein vehicle functions related to said one or more electronic control units are accessible by using a first vehicle access code (VAC) or a second vehicle access code (VAC), wherein the first VAC defines a first level of access to the vehicle functions to which a user is allowed and the second VAC defines a second level of access to the vehicle functions to which a user is allowed, and wherein some or all information or data is communicated over said communication channel in an encrypted format, and
wherein a secondary access code (SAC) is installed on said one or more control units and said first user interface, and said SAC is used to encrypt both the first and second VACs for at least the first time when installed on said one or more control units over said communication channel.
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9. A method for secure transfer of information on a vehicle security system, the system comprising a first user interface, one or more electronic control units connected through a communication channel, wherein the method comprises the steps of:
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storing a first vehicle access code (VAC) and a second VAC in said first user interface, wherein the first VAC defines a first level of access to vehicle functions of said one or more electronic control units to which a user is allowed and the second VAC defines a second level of access to vehicle functions of said one or more electronic control units to which a user is allowed; storing said first and second VACs in said one or more electronic control units through said communication channel; communicating some or all information or data related to the vehicle functions of said one or more electronic control units over said communication channel to and from said electronic control units and said first user interface in an encrypted format; installing a secondary access code (SAC) on said one or more control units and said first user interface; and using said SAC to encrypt said first and second VACs when entered in said first user interface for at least the first time and to install said first and second VACs on said one or more electronic control units over said communication channel. - View Dependent Claims (10)
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Specification