Alcohol ignition interlock system and method
First Claim
1. An alcohol ignition interlock system for a vehicle having a battery, an ignition switch, a starter motor and an ignition system, the system comprising:
- a steering wheel;
a blood alcohol concentration sensor disposed on the steering wheel; and
an ignition interlock control unit, the input to the control unit being connected to the output of the blood alcohol concentration sensor, the control unit being adapted for being electrically connected to the vehicle'"'"'s ignition switch, the starter motor and the battery, the control unit being programmed to disable the starter and the ignition system when the sensor detects a blood alcohol concentration exceeding a programmed limit.
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Accused Products
Abstract
The alcohol ignition interlock system and method has a transdermal blood alcohol concentration blood alcohol concentration reader in combination with a vehicle ignition interlock circuit that prevents an intoxicated person from operating a vehicle. The blood alcohol concentration reader utilizes a sensor that continuously measures very low levels of transdermal alcohol mounted on the steering wheel of the vehicle beneath a porous cover. The readings are communicated to a microprocessor-controlled control unit and ignition interlock circuitry that either enables or disables start-up of the vehicle, as well as continued operation thereof. Not only does the system prevent an intoxicated person from starting the vehicle, but should the system detect the driver'"'"'s subsequent intoxicated state while in operation of the vehicle, the driver is given a period of time and distance in which to pull off the road prior to the ignition system being disabled.
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Citations
20 Claims
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1. An alcohol ignition interlock system for a vehicle having a battery, an ignition switch, a starter motor and an ignition system, the system comprising:
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a steering wheel;
a blood alcohol concentration sensor disposed on the steering wheel; and
an ignition interlock control unit, the input to the control unit being connected to the output of the blood alcohol concentration sensor, the control unit being adapted for being electrically connected to the vehicle'"'"'s ignition switch, the starter motor and the battery, the control unit being programmed to disable the starter and the ignition system when the sensor detects a blood alcohol concentration exceeding a programmed limit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of disabling a vehicle having a battery, an ignition switch, a starter motor, an ignition system and a control unit, the method comprising the steps of:
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determining the state of the ignition switch;
reading the blood alcohol concentration of a user;
based on the blood alcohol concentration of the user and the state of the ignition switch, instructing the control unit to control a flow of current to the ignition system and the starter motor. - View Dependent Claims (10, 11, 12)
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13. An alcohol ignition interlock system for a vehicle having a battery, an ignition switch, a starter motor and ignition system, the system comprising:
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a steering wheel;
means for measuring transdermal alcohol concentration incorporated into the steering wheel; and
means for disabling the starter and the ignition system when a programmed blood alcohol concentration limit is exceeded, the means for disabling the starter being connected to the means for measuring transdermal alcohol concentration. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification