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Motor vehicle with encrypted bus data

A technology of motor vehicles and data, applied in the direction of starting device with mechanical power storage, starting of engine, machine/engine, etc., can solve the problem of no resistance by physical means

Active Publication Date: 2015-04-15
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since the relevant controller can be replaced more quickly, this anti-theft locking system is also irresistible to physical means.

Method used

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  • Motor vehicle with encrypted bus data
  • Motor vehicle with encrypted bus data
  • Motor vehicle with encrypted bus data

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] An engine 10 of a motor vehicle has a crankshaft 12 that converts linear motion of a piston 14 into rotary motion. The crankshaft 12 is coupled to a transmission 18 via a flywheel 16 . The crankshaft 12 is coupled via a form-locking transmission 20 , such as a chain, a toothed belt or a gear mechanism, to a camshaft 22 which mechanically controls valves 24 of the engine 10 assigned to the respective cylinders of the engine 10 .

[0023] In order to control engine 10 , precise knowledge of the rotational positions of crankshaft 12 and camshaft 22 is required so that, for example, the corresponding ignition times can be optimally set for the individual cylinders. For this purpose, a crankshaft sensor 26 arranged inside the transmission housing 28 and a camshaft sensor 30 arranged inside the cylinder head 32 are provided. Furthermore, for control purposes, an electric throttle regulator 34 is provided in order to be able to adjust the air and fuel quantities introduced in...

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Abstract

The invention relates to a method for operating a motor vehicle, in which method encrypted data (44) is exchanged between a sensor (26, 30) and a control device (38) via a bus (36, 42), an item of information required for decrypting the exchanged data (44) being provided by a user of the motor vehicle by means of a portable device, the encrypted data (44) comprising measurement values (46) of the sensor (26, 30) which relate to an operating state of a component of the motor vehicle.

Description

technical field [0001] The invention relates to a method for operating a motor vehicle according to the preamble of claim 1 . Background technique [0002] In order to increase the anti-theft safety of modern motor vehicles, electronic immobilizers have been written into the regulations. Such an immobilizer system includes a portable part, such as a vehicle key, in which encrypted information is stored and which can be transmitted, for example by means of a transponder, to other electronic components of the motor vehicle. In one of these other electronic components, usually in the engine controller, another encrypted information is stored. The motor vehicle can only be started if the information transmitted by the portable part matches the information stored in the motor vehicle. [0003] This immobilizer system can be broken by replacing the engine controller and using a new engine controller matched with a key with predetermined password information. [0004] In order t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R25/04
CPCB60R25/04H04L9/00F02N15/00
Inventor T·布莱奈尔I·莱登德克尔S·马斯
Owner AUDI AG