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Method and device for controlling a car

A vehicle and ignition equipment technology, applied in the key field, can solve expensive and complicated problems

Inactive Publication Date: 2007-05-30
绅宝汽车股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

it's expensive and complicated

Method used

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  • Method and device for controlling a car

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Embodiment Construction

[0024] In the first preferred embodiment, the driver will be allowed to open and enter the vehicle under all circumstances, but will be prevented from starting the vehicle. In this case, two keys are required: a first key for unlocking the vehicle, and a second key, preferably in combination with the first key, for starting the vehicle.

[0025] It is common in the art that a person walks up to the vehicle, usually using the first key to open the vehicle by remote control. Next, one inserts the first key into the ignition and turns it to start the vehicle. The vehicle will not start until the driver's alcohol level has been detected by means of the second key and the second key sends an "OK" signal to the alcohol key that the alcohol level is acceptable. Acceptable levels will depend on the laws in each country. Detection with the second key can take place before the vehicle is opened, after the driver has entered the vehicle or even after the key has been turned in the igni...

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Abstract

An alco key for a car uses the immobiliser associated with the car's ignition system. A key is used for remote control of the immobiliser of a car, said key comprising an analysis device for determining the alcohol level of a person and, arranged to trans-mit a signal authorizing starting the car only if the alcohol level is below a prede-termined limit. The method comprises the steps of - transmitting an open signal to at least one door of the car - operating the ignition key to start the car, - detecting the alcohol level of a person and, if the level is below a predetermined limit level, transmitting an ok signal wirelessly to signal that it is ok to start the car, - starting the car only if said ok signal has been received by the immobiliser. The opening of doors can be controlled in a similar way.

Description

technical field [0001] The invention relates to a key for opening a vehicle or for controlling an immobiliser of a vehicle according to the preambles of claims 1 and 2, respectively. It also relates to a method for starting a vehicle according to the preamble of claim 3 , an immobilizer for controlling an ignition system of a vehicle according to the preamble of claim 6 and an ignition system comprising such an immobilizer. The invention also relates to a computer program product according to the preambles of claims 7 and 8, respectively. Background technique [0002] Vehicle alcohol keys are used to prevent people from driving a vehicle while under the influence of alcohol. [0003] A person who wants to start the vehicle breathes into the analysis unit, which is used to determine the alcohol level, and based on the analysis of the breath, the system decides whether or not the person is allowed to start the vehicle. Several such analysis units are known in the prior art. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K28/06E05B19/04B60R25/04B60R25/25E05B19/00
CPCE05B17/223E05B19/00B60R25/25B60R25/04B60K28/063B60R25/255B60R25/252
Inventor 玛格丽塔·卡尔松
Owner 绅宝汽车股份公司
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