Vehicle falling-over detection device
A falling-over detection device is mounted on a motorcycle. The falling-over detection device includes an acceleration sensor that detects acceleration at an interval decided by an interval adjusting device, a threshold value determining device that determines whether or not a detected angle is larger than a predetermined threshold value, a counting device that counts the number of times it is determined that the detected angle is larger than the threshold value, and a falling-over determining device that determines that the motorcycle has fallen over in a case where the count is successive a predetermined number of times. The interval adjusting device uses a pulse generated based on white noise as an interval, and therefore noise does not successively affect a value detected by the acceleration sensor.
1. A vehicle falling-over detection device comprising:
inclination angle detector that detects an inclination angle of a vehicle;
a counter that counts in a case where the inclination angle detected by the inclination angle detector is equal to or larger than a predetermined angle; and
a determining unit that determines that the vehicle has fallen over in a case where the counter counts successively a predetermined number of times, wherein
the inclination angle detector includes an interval deciding unit that decides a detection interval of detection of an angle of the vehicle,
the interval deciding unit makes the detection interval irregular,
and
the interval deciding unit includes:
a noise generator that generates white noise, and
a pulse signal generator that generates a pulse signal from the white noise; and
a pulse interval of the pulse signal is used as the detection interval.
2. The vehicle falling-over detection device according to claim 1 , wherein
the inclination angle detector detects acceleration in a vertical direction in a vertically standing state of the vehicle by using an acceleration sensor.