Acceleration detection device, acceleration detection method, and neutral control device employing same
First Claim
1. An acceleration detection device for detecting acceleration of a vehicle, comprising:
- a stopped acceleration detector that detects a detected stationary acceleration value when the vehicle is stopped on a sloping road based on an acceleration sensor signal from an acceleration sensor mounted on the vehicle;
an acceleration change detector that detects an acceleration change associated with the vehicle transitioning from a stationary state to a driving state on the sloping road based on the acceleration sensor signal, the acceleration change detector detecting the acceleration change as a maximum difference between the detected stationary acceleration value and an acceleration value that is detected while the vehicle is rolling back on the sloping road;
an acceleration estimating unit that includes an estimated acceleration calculating map in which estimated values of acceleration that correspond to the acceleration change are preset in accordance with vehicle characteristics, the acceleration estimating unit calculating an estimated stationary acceleration value based on the acceleration change that was detected by the acceleration change detector according to the estimated acceleration calculating map; and
a correcting unit that corrects the detected stationary acceleration value based on a deviation between the estimated stationary acceleration value and the detected stationary acceleration value.
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Abstract
An acceleration detection device for detecting detected acceleration of a vehicle is provided with a stopped acceleration detector, an acceleration change detector, an acceleration estimating unit and a correcting unit. The stopped acceleration detector detects a detected stationary acceleration value when the vehicle is stopped on a sloping road based on an acceleration sensor signal from an acceleration sensor mounted on the vehicle. The acceleration change detector detects an acceleration change associated with the vehicle transitioning from a stationary state to a driving state on the sloping road based on the acceleration sensor signal. The acceleration estimating unit estimates an estimated stationary acceleration value based on the acceleration change that was detected by the acceleration change detector. The correcting unit corrects the detected stationary acceleration value based on a deviation between the estimated stationary acceleration value and the detected stationary acceleration value.
43 Citations
16 Claims
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1. An acceleration detection device for detecting acceleration of a vehicle, comprising:
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a stopped acceleration detector that detects a detected stationary acceleration value when the vehicle is stopped on a sloping road based on an acceleration sensor signal from an acceleration sensor mounted on the vehicle; an acceleration change detector that detects an acceleration change associated with the vehicle transitioning from a stationary state to a driving state on the sloping road based on the acceleration sensor signal, the acceleration change detector detecting the acceleration change as a maximum difference between the detected stationary acceleration value and an acceleration value that is detected while the vehicle is rolling back on the sloping road; an acceleration estimating unit that includes an estimated acceleration calculating map in which estimated values of acceleration that correspond to the acceleration change are preset in accordance with vehicle characteristics, the acceleration estimating unit calculating an estimated stationary acceleration value based on the acceleration change that was detected by the acceleration change detector according to the estimated acceleration calculating map; and a correcting unit that corrects the detected stationary acceleration value based on a deviation between the estimated stationary acceleration value and the detected stationary acceleration value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An acceleration detection device for detecting acceleration of a vehicle, comprising:
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stopped acceleration detecting means for detecting a detected stationary acceleration when the vehicle is stopped on a sloping road; acceleration change detecting means for detecting an acceleration change associated with the vehicle transitioning from a stationary state to a driving state on the sloping road, the acceleration change detecting means detecting the acceleration change as a maximum difference between the detected stationary acceleration value and an acceleration value that is detected while the vehicle is rolling back on the sloping road; acceleration estimating means for calculating an estimated stationary acceleration based on the acceleration change that was detected by the acceleration change detecting means according to an estimated acceleration calculating map in which estimated values of acceleration that correspond to the acceleration change are preset in accordance with vehicle characteristics; and correcting means for correcting the detected stationary acceleration based on a deviation between the estimated stationary acceleration and the detected stationary acceleration. - View Dependent Claims (14)
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15. An acceleration detection method comprising:
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receiving a first acceleration sensor signal from an acceleration sensor mounted on a vehicle when the vehicle is stopped on a sloping road; receiving a second acceleration sensor signal from the acceleration sensor while the vehicle is rolling back on the sloping road; calculating an acceleration change associated with the vehicle transitioning from a stationary state to a driving state on the sloping road, the acceleration change being calculated as a maximum difference between a detected stationary acceleration value of the first acceleration sensor signal and an acceleration value of the second acceleration sensor signal that is detected while the vehicle is rolling back on the sloping road; calculating an estimated stationary acceleration value based on the acceleration change between the first and second acceleration sensor signals according to an estimated acceleration calculating map in which estimated values of acceleration that correspond to the acceleration change are preset in accordance with vehicle characteristics; and correcting a detected stationary acceleration value of the first acceleration sensor signal based on a deviation between the estimated stationary acceleration value and the detected stationary acceleration value. - View Dependent Claims (16)
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Specification