Driving state-monitoring apparatus for automotive vehicles
First Claim
1. A driving state-monitoring apparatus for an automotive vehicle, for monitoring a driving state of a driver of said automotive vehicle, comprising:
- driving state parameter-calculating means for calculating a driving state parameter indicative of said driving state of said driver based on at least one of behavior of said automotive vehicle, a driving operation of said driver, and a condition of said driver;
comparison means for comparing said driving state parameter with a reference value;
determining means for determining whether or not said driving state of said driver is normal based on a result of said comparison by said comparison means; and
reference value-changing means for changing said reference value based on said driving state parameter calculated by said driving state parameter-calculating means, in such a direction that it becomes less possible to determine that said driving state of said driver is normal, wherein said reference value-changing means progressively changes said reference value based on said driving state parameter calculated by said driving state parameter calculating means in such a direction that it becomes less possible to determine that said driving state of said driver is normal, after said automotive vehicle is started.
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Abstract
A driving state-monitoring apparatus for an automotive vehicle monitors a driving state of a driver of the automotive vehicle. A driving state parameter indicative of the driving state of the driver is calculated based on at least one of behavior of the automotive vehicle, a driving operation of the driver, and a condition of the driver. The driving state parameter is compared with a reference value. It is determined whether or not the driving state of the driver is normal, based on a result of the comparison. The reference value is changed based on the driving state parameter in such a direction that it becomes less possible to determine that the driving state of the driver is normal.
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Citations
16 Claims
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1. A driving state-monitoring apparatus for an automotive vehicle, for monitoring a driving state of a driver of said automotive vehicle, comprising:
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driving state parameter-calculating means for calculating a driving state parameter indicative of said driving state of said driver based on at least one of behavior of said automotive vehicle, a driving operation of said driver, and a condition of said driver; comparison means for comparing said driving state parameter with a reference value; determining means for determining whether or not said driving state of said driver is normal based on a result of said comparison by said comparison means; and reference value-changing means for changing said reference value based on said driving state parameter calculated by said driving state parameter-calculating means, in such a direction that it becomes less possible to determine that said driving state of said driver is normal, wherein said reference value-changing means progressively changes said reference value based on said driving state parameter calculated by said driving state parameter calculating means in such a direction that it becomes less possible to determine that said driving state of said driver is normal, after said automotive vehicle is started. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A driving state-monitoring apparatus for an automotive vehicle, for monitoring a driving state of said automotive vehicle, comprising:
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driving state parameter-calculating means for calculating a driving state parameter indicative of said driving state of said driver based on at least one of behavior of said automotive vehicle, a driving operation of said driver, and a condition of said driver; comparison means for comparing said driving state parameter with a reference value; determining means for determining weather or not said driving state of said driver is normal based on a result of said comparison by said comparison means; and reference value-changing means for changing said reference based on said driving state parameter calculated by said driving state parameter-calculating means, in such a direction that it becomes less possible to determine that said driving state of said driver is normal; said driving state parameter-calculating means includes behavior parameter-detecting means for detecting a behavior parameter indicative of an amount behavior related to at least one of yawing movement and lateral movement of said automotive vehicle, vehicle-speed detecting means for detecting a speed of said automotive vehicle, behavior reference parameter-setting means for setting a behavior reference parameter based on changes in said behavior parameter, and lateral deviation behavior amount-calculating means for calculating a lateral deviation behavior amount of said automotive vehicle, based on said behavior parameter, said behavior reference parameter, and said speed of said automotive vehicle, and said driving state parameter-calculating means calculates said driving state parameter based on said lateral deviation behavior amount of said automotive vehicle.
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16. A driving state-monitoring apparatus for an automotive vehicle, for monitoring a driving state of a driver of said automotive vehicle, comprising:
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driving state parameter-calculating means for calculating a driving state parameter indicative of said driving state of said driver based on at least one of behavior of said automotive vehicle, a driving operation of said driver, and a condition of said driver; comparison means for comparing said driving state parameter with a reference value; determining means for determining whether or not said driving state of said driver is normal based on a result of said comparison by said comparison means; and reference value-changing means for changing said reference value based on said driving state parameter calculated by said driving state parameter-calculating means, in such a direction that it becomes less possible to determine that said driving state of said driver is normal wherein said comparison means compares an average value of said driving state parameter and a variation of said driving state parameter with respective reference values, said determining means including driving ability-determining means for determining a driving ability of said driver based on said result of said comparison by said comparison means, said determining means determining whether or not said driving state of said driver is normal, based on a result of said determination by said driving ability-determining means.
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Specification