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Method to avert an unlawfully intoxicated driver from operating a vehicle by passive measurement of an ethanol vapor concentration in air
Method to avert an unlawfully intoxicated driver from operating a vehicle by passive measurement of an ethanol vapor concentration in air
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机译:通过被动测量空气中乙醇蒸气浓度来避免非法醉酒的驾驶员驾驶车辆的方法
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摘要
A method to avert an unlawfully intoxicated driver from operating a vehicle is provided. The method utilizes a passive ethanol vapor sensor to measure ethanol vapor concentration in air from a vehicle cabin and imposes a safety response when the passive ethanol vapor sensor detects that a sample of vehicle cabin air indicates that a vehicle occupant exceeds the legal blood alcohol concentration (BAC) for a motor vehicle driver. The ethanol vapor sensor may have a passive measurement mode and an active breathalyzer mode. Ethanol vapor in a vehicle cabin may be passively measured and if a predetermined ethanol level is measured, a countermeasure is invoked to improve safety. An active breathalyzer may be used as a countermeasure. The active breathalyzer can be imposed for a number of vehicle trips or for a predetermined time period.
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