CAJ | 학술논문

针对轮式车辆导航特点,综合车辆载荷转移和轮胎滑动两方面,提出了计算半径的概念,建立能同时补偿路面纵坡度和车辆加速度对里程仪测距影响的误差模型,跑车试验表明:纵坡度角每增加1°里程仪计算刻度系数约减小1.0762×10-3mm,加速度每增加1 m/s2里程仪计算刻度系数约减小6.295×10-3mm,经过路面纵坡度和车辆加速度补偿,里程仪测距精度可以提高一个量级.
침대륜식차량도항특점,종합차량재하전이화륜태활동량방면,제출료계산반경적개념,건립능동시보상로면종파도화차량가속도대리정의측거영향적오차모형,포차시험표명:종파도각매증가1°리정의계산각도계수약감소1.0762×10-3mm,가속도매증가1 m/s2리정의계산각도계수약감소6.295×10-3mm,경과로면종파도화차량가속도보상,리정의측거정도가이제고일개량급.
Based on wheeled vehicle navigation characteristics, vehicle load transfer and wheel slip are analyzed when the road longitudinal gradient or vehicle acceleration changes, the conception of computational tire radius is put forward and longitudinal gradient and acceleration model of odometer distance measurement is established.The experimental results show odometer computational calibration factor approximately decreases 1.0762× 10-3 mm when longitudinal gradient angle increases 1 °, odometer computational calibration factor approximately decreases 6.295 ×10-3mm when acceleration increases 1 m/s2.By the model compensation, the distance measurement accuracy of odometer is raised nearly one order of magnitude.