ratio n. (pl. ratios) 1.比,比率,比值;比例;系数。 2.【经济学】复本位制中金银的法定比价。 the ratio 3:2 (读作 the ratio of three to two )3对2之比。 arithmetical ratio 公差,算术比。 direct ratio 正比。 inverse [reciprocal] ratio反比。 current ratio 电流比,电流变换系数。 nutritive ratio 营养率。 vt. 1.用比例方式表达;求出…的比值;使…成比例。 2.将(相片)按比例放大或缩小。
Relationship between the gyro ’ s bandwidth and sensitivity and the resonant frequency differential ratio is derived through frequency analysis . the bandwidth of the gyro increases as the resonant frequency differential ratio increases ; but the sensitivity decreases as the resonant frequency differential ratio increases 增大驱动轴和敏感轴之间谐振频率的频差,可以增加微陀螺的带宽,但是降低了微陀螺的灵敏度,这为设计石英音叉结构参数时,确定驱动轴和敏感轴谐振频率提供了指导依据。
Based on the basic analysis of the structure and power elements of the hybrid vehicle , this thesis presents a powertrain system with a metal pushing belt cvt , aiming to the development status and trend of the hybrid vehicle technology in our country . a rational control strategy and its work mode of this powertrain system are determined , and correlative parameters such as the engine power , the starting torque , and the differential ratio , the rated power and torque of the motor , and the ratio of the torque synthesizer are systematically designed for the changan star 6350b . at the same time , the design of these parameters is considered as the base of the simulation of the motor control system in next step 在对混合动力汽车的结构型式和动力元件进行基础性理论分析后,针对我国汽车技术发展现状和混合动力汽车技术的发展趋势,设计了一种基于金属带式无级自动变速器cvt混合动力汽车动力传动系统方案,根据该传动系统方案制定了比较合理的控制策略和工作模式,并针对长安之星6350b设计了发动机功率和起始转矩、主减速比、电机的额定功率和转矩、转矩合成器速比等相关参数,为下一步的电机控制系统仿真实验打下基础。