Driving instability determination device
First Claim
1. A driving instability determination device comprising:
- a running state acquisition section that acquires running state data pertaining to at least one of an operation state of a driver operate driving operation unit and a vehicle state;
a running state distribution computing section that computes a first running state distribution of a first time range and a second running state distribution of a preset second time range based on the running state data acquired by the running state acquisition section, the first time range being longer than the second time range;
an operation instability determination section that compares the first running state distribution and the second running state distribution computed by the running state distribution computing section to determine a driving instability; and
a driving state determination section that determines whether a current driving state is a prescribed driving state, which is estimated to degrade reliability of the running state data acquired by the running state acquisition section, based on at least one of the driving state of the driver operate driving operation unit, the vehicle state and vehicle periphery information,the running state distribution computing section being configured to exclude the running state data in a period that the prescribed driving state is determined to exist, and then compute at least the second running state distribution among the first running state distribution and the second running state distribution.
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Accused Products
Abstract
A driving instability determination device is provided to improve the precision in detecting the driving instability. The driving state determination section determines whether the state is a prescribed driving state by determining whether the information of the operation state of the driving operation unit and the vehicle state as the running state data is disturbed. Based on the running state data for detecting the unstable state of the driver, the running state distribution computing section excludes the running state data when the state is determined to be the prescribed driving state, and the running state distribution computing section computes the first and second running state distributions in different time ranges. The driving instability determination section determines the instability of the driving from the difference between the two computed running state distributions.
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Citations
20 Claims
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1. A driving instability determination device comprising:
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a running state acquisition section that acquires running state data pertaining to at least one of an operation state of a driver operate driving operation unit and a vehicle state; a running state distribution computing section that computes a first running state distribution of a first time range and a second running state distribution of a preset second time range based on the running state data acquired by the running state acquisition section, the first time range being longer than the second time range; an operation instability determination section that compares the first running state distribution and the second running state distribution computed by the running state distribution computing section to determine a driving instability; and a driving state determination section that determines whether a current driving state is a prescribed driving state, which is estimated to degrade reliability of the running state data acquired by the running state acquisition section, based on at least one of the driving state of the driver operate driving operation unit, the vehicle state and vehicle periphery information, the running state distribution computing section being configured to exclude the running state data in a period that the prescribed driving state is determined to exist, and then compute at least the second running state distribution among the first running state distribution and the second running state distribution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification