| 摘要 |
PROBLEM TO BE SOLVED: To provide an acceleration detector capable of realizing more accurate zero-point correction, a method of compensating drift errors of an acceleration sensor, and a neutral controller that uses the method. SOLUTION: The acceleration detector 11 includes an N control input G calculating part 15 for detecting acceleration detection value, at stopping on a slope based on a G sensor signal at stopping on the slope; aΔG-calculating part 17 for detecting based on the G sensor signal; the amount of changeΔG in acceleration due to running backward of a vehicle when the vehicle, transits from the stop on the slope to a running state; an acceleration estimating part 18 for calculating the acceleration estimation value at stopping on the slope when the vehicle stops on the slope, based on the amount of changeΔG in acceleration; a drift amount calculating part 19 for calculating the drift amount of a zero point of the acceleration detection value from deviation between the acceleration estimation value and the acceleration detection value at stopping on the slope; and a zero-point correcting part 13 for correcting the zero point of the acceleration detection value, based on the drift amount. COPYRIGHT: (C)2008,JPO&INPIT
|
