Vehicle ignition interlock systems with retesting frequency control
First Claim
1. A vehicle ignition interlock system, comprising:
- a breath analyzer located within a vehicle, wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle; and
a controller operably connected to the breath analyzer and to an ignition system of the vehicle, wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value, wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to the threshold value, wherein the controller is configured to require periodic breath alcohol tests of the vehicle operator via the breath analyzer, and wherein the controller is configured to reduce the frequency of the periodic breath alcohol tests of the vehicle operator via the breath analyzer in response to one or more breath alcohol tests via the breath analyzer indicating that the breath alcohol level of the vehicle operator is below a threshold value.
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Abstract
A vehicle ignition interlock system includes a breath analyzer and a controller operably connected to the breath analyzer and to an ignition system of the vehicle. The controller compares detected breath alcohol levels of the vehicle operator with a threshold value, and is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to a threshold value. The controller also requires the vehicle operator to periodically take breath analyzer retests after vehicle ignition in order to allow vehicle operation to continue. The controller can reduce the frequency of periodic retests in response to one or more retests when the breath alcohol level of the vehicle operator is below a threshold value. The system may include a transdermal alcohol sensor, a mouth contamination sensor, a mouth contamination sensor, and redundant alcohol sensors.
83 Citations
42 Claims
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1. A vehicle ignition interlock system, comprising:
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a breath analyzer located within a vehicle, wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle; and
a controller operably connected to the breath analyzer and to an ignition system of the vehicle, wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value, wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to the threshold value, wherein the controller is configured to require periodic breath alcohol tests of the vehicle operator via the breath analyzer, and wherein the controller is configured to reduce the frequency of the periodic breath alcohol tests of the vehicle operator via the breath analyzer in response to one or more breath alcohol tests via the breath analyzer indicating that the breath alcohol level of the vehicle operator is below a threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A vehicle ignition interlock system, comprising:
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a breath analyzer located within a vehicle, wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle, and wherein the breath analyzer is configured to detect the presence of alcohol within the vehicle;
a transdermal alcohol sensor configured to be worn by the vehicle operator, wherein the transdermal alcohol sensor is configured to detect alcohol through the skin of the vehicle operator a controller operably connected to the breath analyzer, to the transdermal alcohol sensor, and to an ignition system of the vehicle, wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value, wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to a threshold value, wherein the controller is configured to require periodic breath alcohol tests of the vehicle operator via the breath analyzer, and wherein the controller is configured to reduce the frequency of the periodic breath alcohol tests of the vehicle operator via the breath analyzer in response to one or more breath alcohol tests via the breath analyzer indicating that the breath alcohol level of the vehicle operator is below a threshold value.
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31. A vehicle ignition interlock system, comprising:
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a breath analyzer located within a vehicle, wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle, wherein the breath analyzer is configured to detect the presence of alcohol within the vehicle, and wherein the breath analyzer comprises a mouth contamination sensor that is configured to distinguish between contaminants in the mouth of a vehicle operator and alcohol contained within a deep lung breath sample;
a transdermal alcohol sensor configured to be worn by the vehicle operator, wherein the transdermal alcohol sensor is configured to detect alcohol through the skin of the vehicle operator; and
a controller operably connected to the breath analyzer, to the transdermal alcohol sensor, to the mouth contamination sensor, and to an ignition system of the vehicle, wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value, wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to the threshold value, wherein the controller is configured to require periodic breath alcohol tests of the vehicle operator via the breath analyzer, wherein the controller is configured to reduce the frequency of the periodic breath alcohol tests of the vehicle operator via the breath analyzer in response to one or more breath alcohol tests via the breath analyzer indicating that the breath alcohol level of the vehicle operator is below a threshold value, and wherein the controller is configured to trigger a breath alcohol test of the vehicle operator via the breath analyzer in response to detecting the presence of a contaminant within the mouth of the vehicle operator.
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32. A vehicle ignition interlock system, comprising:
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a breath analyzer located within a vehicle, wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle, wherein the breath analyzer comprises a mouth contamination sensor that is configured to distinguish between contaminants in the mouth of a vehicle operator and alcohol contained within a deep lung breath sample;
a transdermal alcohol sensor configured to be worn by the vehicle operator, wherein the transdermal alcohol sensor is configured to detect alcohol through the skin of the vehicle operator; and
a controller operably connected to the breath analyzer, to the transdermal alcohol sensor, to the mouth contamination sensor, and to an ignition system of the vehicle, wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value, wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to the threshold value, wherein the controller is configured to require periodic breath alcohol tests of the vehicle operator via the breath analyzer, wherein the controller is configured to reduce the frequency of the periodic breath alcohol tests of the vehicle operator via the breath analyzer in response to one or more breath alcohol tests via the breath analyzer indicating that the breath alcohol level of the vehicle operator is below a threshold value, and wherein the controller is configured to trigger a breath alcohol test of the vehicle operator via the breath analyzer in response to detecting the presence of a contaminant within the mouth of the vehicle operator.
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33. A vehicle ignition interlock system, comprising:
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a breath analyzer located within a vehicle, wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle, wherein the breath analyzer comprises first and second alcohol sensors, each configured to detect breath alcohol levels of an operator of the vehicle, wherein the second alcohol sensor is a backup for the first alcohol sensor and becomes operational if the first alcohol sensor malfunctions;
a transdermal alcohol sensor configured to be worn by the vehicle operator, wherein the transdermal alcohol sensor is configured to detect alcohol through the skin of the vehicle operator;
a controller operably connected to the breath analyzer, to the transdermal alcohol sensor, and to an ignition system of the vehicle, wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value, wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to the threshold value, wherein the controller is configured to require periodic breath alcohol tests of the vehicle operator via the breath analyzer, and wherein the controller is configured to reduce the frequency of the periodic breath alcohol tests of the vehicle operator via the breath analyzer in response to one or more breath alcohol tests via the breath analyzer indicating that the breath alcohol level of the vehicle operator is below a threshold value.
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34. A vehicle ignition interlock system, comprising:
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a breath analyzer located within a vehicle, wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle, wherein the breath analyzer is configured to detect the presence of alcohol within the vehicle, and wherein the breath analyzer comprises a mouth contamination sensor that is configured to distinguish between contaminants in the mouth of a vehicle operator and alcohol contained within a deep lung breath sample; and
a controller operably connected to the breath analyzer, to the mouth contamination sensor, and to an ignition system of the vehicle, wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value, wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to the threshold value, wherein the controller is configured to require periodic breath alcohol tests of the vehicle operator via the breath analyzer, and wherein the controller is configured to reduce the frequency of the periodic breath alcohol tests of the vehicle operator via the breath analyzer in response to one or more breath alcohol tests via the breath analyzer indicating that the breath alcohol level of the vehicle operator is below a threshold value, and wherein the controller is configured to trigger a breath alcohol test of the vehicle operator via the breath analyzer in response to detecting the presence of a contaminant within the mouth of the vehicle operator.
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35. A vehicle ignition interlock system, comprising:
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a breath analyzer located within a vehicle, wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle, wherein the breath analyzer is configured to detect the presence of alcohol within the vehicle, and wherein the breath analyzer comprises first and second alcohol sensors, wherein the second alcohol sensor is a backup for the first alcohol sensor and becomes operational if the first alcohol sensor malfunctions; and
a controller operably connected to the breath analyzer and to an ignition system of the vehicle, wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value, wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to the threshold value, wherein the controller is configured to require periodic breath alcohol tests of the vehicle operator via the breath analyzer, and wherein the controller is configured to reduce the frequency of the periodic breath alcohol tests of the vehicle operator via the breath analyzer in response to one or more breath alcohol tests via the breath analyzer indicating that the breath alcohol level of the vehicle operator is below a threshold value.
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36. A vehicle ignition interlock system, comprising:
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a breath analyzer located within a vehicle, wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle, and wherein the breath analyzer is configured to detect the presence of alcohol within the vehicle;
a transdermal alcohol sensor configured to be worn by the vehicle operator, wherein the transdermal alcohol sensor is configured to detect alcohol through the skin of the vehicle operator; and
a controller operably connected to the breath analyzer, to the transdermal alcohol sensor, and to an ignition system of the vehicle, wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value, and wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to the threshold value.
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37. A vehicle ignition interlock system, comprising:
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a breath analyzer located within a vehicle, wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle, and wherein the breath analyzer comprises a mouth contamination sensor that is configured to distinguish between contaminants in the mouth of a vehicle operator and alcohol contained within a deep lung breath sample;
a transdermal alcohol sensor configured to be worn by the vehicle operator, wherein the transdermal alcohol sensor is configured to detect alcohol through the skin of the vehicle operator; and
a controller operably connected to the breath analyzer, to the transdermal alcohol sensor, and to an ignition system of the vehicle, wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value, and wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to the threshold value, and wherein the controller is configured to trigger a breath alcohol test of the vehicle operator via the breath analyzer in response to detecting the presence of a contaminant within the mouth of the vehicle operator.
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38. A vehicle ignition interlock system, comprising:
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a breath analyzer located within a vehicle, wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle, wherein the breath analyzer comprises first and second alcohol sensors, each configured to detect breath alcohol levels of an operator of the vehicle, wherein the second alcohol sensor is a backup for the first alcohol sensor and becomes operational if the first alcohol sensor malfunctions;
a transdermal alcohol sensor configured to be worn by the vehicle operator, wherein the transdermal alcohol sensor is configured to detect alcohol through the skin of the vehicle operator; and
a controller operably connected to the breath analyzer, to the transdermal alcohol sensor, and to an ignition system of the vehicle, wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value, and wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to the threshold value.
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39. A vehicle ignition interlock system, comprising:
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a breath analyzer located within a vehicle, wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle, wherein the breath analyzer is configured to detect the presence of alcohol within the vehicle, and wherein the breath analyzer comprises first and second alcohol sensors, wherein the second alcohol sensor is a backup for the first alcohol sensor and becomes operational if the first alcohol sensor malfunctions;
a transdermal alcohol sensor configured to be worn by the vehicle operator, wherein the transdermal alcohol sensor is configured to detect alcohol through the skin of the vehicle operator; and
a controller operably connected to the breath analyzer, to the transdermal alcohol sensor, and to an ignition system of the vehicle, wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value, and wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to the threshold value.
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40. A vehicle ignition interlock system, comprising:
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a breath analyzer located within a vehicle, wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle, wherein the breath analyzer is configured to detect the presence of alcohol within the vehicle, and wherein the breath analyzer comprises a mouth contamination sensor that is configured to distinguish between contaminants in the mouth of a vehicle operator and alcohol contained within a deep lung breath sample; and
a controller operably connected to the breath analyzer and to an ignition system of the vehicle, wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value, wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to the threshold value, and wherein the controller is configured to trigger a breath alcohol test of the vehicle operator via the breath analyzer in response to detecting the presence of a contaminant within the mouth of the vehicle operator.
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41. A vehicle ignition interlock system, comprising:
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a breath analyzer located within a vehicle, wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle, wherein the breath analyzer is configured to detect the presence of alcohol within the vehicle, wherein the breath analyzer comprises first and second alcohol sensors, and wherein the second alcohol sensor is a backup for the first alcohol sensor and becomes operational if the first alcohol sensor malfunctions; and
a controller operably connected to the breath analyzer and to an ignition system of the vehicle, wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value, and wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to the threshold value.
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42. A vehicle ignition interlock system, comprising:
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a breath analyzer located within a vehicle, wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle; and
a controller operably connected to the breath analyzer and to an ignition system of the vehicle, wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value, wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to the threshold value, and wherein the controller is configured to require a breath alcohol test of the vehicle operator via the breath analyzer when the vehicle arrives at a destination.
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Specification