Method and device for securing a vehicle against theft
First Claim
1. Method for securing a vehicle against theft, characterized in that at least one essential operational element of the vehicle can be switched between three operating states A, B and C and is switched between these operating states according to the following steps:
- a. the essential operational elements are switched into a substantially unrestricted operation-ready operating state A by an external usage authorization device independent of the vehicle over means for transmitting the authorization data,b. at least one essential operational element is switched into an operation-ready operating state B by an event-dependent circuit through at least one event for a period of time, the period of time depending on predefined operating parameters,c. either at least one essential operational element of the vehicle is switched after the passage of time for putting out of operation the vehicle into a non-operation-ready or restrictively operation-ready operating state C or the essential operational elements are switched before the passage of the time period into operation-ready operating state A according to method step a) by means of the usage authorization device via means for transmitting the authorization data, andwherein, as the means for transmitting the authorization data from the usage authorization device, a vehicle key is employed, through which the authorization data, being encrypted, are transmitted to a switching device, which, in the case of authorization, switches the essential operational element of the vehicle into operating state A and that subsequently the authorization data is deleted from the vehicle key.
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Accused Products
Abstract
The invention relates to a method and a device for securing a vehicle against theft. According to the invention, at least one essential operating element (2) of the vehicle can be switched between three operating states A, B and C. An external authorization device (3) switches the operating element into the unlimited operating state A. If a defined action (20) is carried out, for example the driver'"'"'s door is opened, the operating element is switched into the operating state B for a defined period of time. If authorization information is transmitted during this time, the operating element is switched back to the operating state A. Otherwise, once this period of time has expired, the operating element is switched into the non-operational operating state C.
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Citations
16 Claims
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1. Method for securing a vehicle against theft, characterized in that at least one essential operational element of the vehicle can be switched between three operating states A, B and C and is switched between these operating states according to the following steps:
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a. the essential operational elements are switched into a substantially unrestricted operation-ready operating state A by an external usage authorization device independent of the vehicle over means for transmitting the authorization data, b. at least one essential operational element is switched into an operation-ready operating state B by an event-dependent circuit through at least one event for a period of time, the period of time depending on predefined operating parameters, c. either at least one essential operational element of the vehicle is switched after the passage of time for putting out of operation the vehicle into a non-operation-ready or restrictively operation-ready operating state C or the essential operational elements are switched before the passage of the time period into operation-ready operating state A according to method step a) by means of the usage authorization device via means for transmitting the authorization data, and wherein, as the means for transmitting the authorization data from the usage authorization device, a vehicle key is employed, through which the authorization data, being encrypted, are transmitted to a switching device, which, in the case of authorization, switches the essential operational element of the vehicle into operating state A and that subsequently the authorization data is deleted from the vehicle key. - View Dependent Claims (2)
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- 3. System for securing a vehicle (1) against theft by means for switching (3, 4, 5) at least one essential operational element (2i) of the vehicle (1), the means for switching (3, 4, 5) comprising at least one usage authorization device (3), at least one switching device (4) for switching between specific operating states of the essential operational element(s) (2i) and means for transmitting the authorization data (5) between the usage authorization device (3) and the switching device (4), characterized in that the essential operational element(s) (2i) is(are) switchable between three operating states A, B and C, operating state A permitting the essentially unrestricted operation of the essential operational element(s) (2i), operating state B permitting the operation, restricted by operating parameter P to a time period Z, of the essential operational element(s) (2i) and operating state C causing the blockage of the essential operational element(s) (2i), with the switching device (4) being connected over at least one operational connection (6) with at least one means each for detecting a switching event (20i), wherein at least one of the essential operational elements (2i) comprises a fluid line (31, 32) in which for blocking the fluid line (31, 32) is disposed a stop valve (33), which includes a coding or is connected via an operational connection (35), with a stop valve (33) located in a fluid line (31, 32) of an essential drive power train (34), with the stop valve (33) including a coding which is verifiable by the essential operational element (2i) over the operational connection (35), or the fluid line (31, 32) being a coolant circulation (31), an oil circulation (32) or a gasoline line.
- 14. System for securing a vehicle (1) against theft by means for switching (3, 4, 5) at least one essential operational element (2i) of the vehicle (1), the means for switching (3, 4, 5) comprising at least one usage authorization device (3), at least one switching device (4) for switching between specific operating states of the essential operational element(s) (2i) and means for transmitting the authorization data (5) between the usage authorization device (3) and the switching device (4), characterized in that the essential operational element(s) (2i) is(are) switchable between three operating states A, B and C, operating state A permitting the essentially unrestricted operation of the essential operational element(s) (2i), operating state B permitting the operation, restricted by operating parameter P to a time period Z, of the essential operational element(s) (2i) and operating state C causing the blockage of the essential operational element(s) (2i), with the switching device (4) being connected over at least one operational connection (6) with at least one means each for detecting a switching event (20i), and wherein the system includes a code key or code card such that a reading-out of a code contained in the code key or code card is only possible with a destruction of the code key or the code card, respectively.
Specification