Optimization Design and Analysis of FBW Throttle Console Quadrant
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摘要: 为了满足我国油门控制系统的发展需求，提出了一种符合人机工学的新型电传油门台。首先，为便于实现不同运动形式之间的转换，油门台采用基于连杆传动+齿轮传动的平推式设计方案。其次，基于偏差最小理论对油门台传动机构进行优化设计，利用MATLAB优化工具箱中的fmincon函数得到传动机构的基本尺寸。然后，通过微分法和"有效杆长理论"对油门台系统精度进行分析。得出结论：最大传动误差发生在停车位；连杆3比连杆2对传动精度的影响大，且二者影响趋势相反；在B点应选择轴承内圈与连杆3相连的连接方式，减小转动副间隙对传动精度的影响。通过原理样机试验验证结果表明：试验结果与设计结果相符，该油门台设计方案正确可行。Abstract: In order to meet the development needs of the throttle control system, a new type of Fly-by-Wire (FBW) Throttle Console Quadrant (TCQ) is proposed to conforming to ergonomics. Firstly, the translational design scheme, based on link & gear transmission, is adopted for the reason that it is easily to change between different movement forms. Secondly, the optimization design for TCQ's transmission mechanism is achieved based on the theory of minimum deviation; the basic dimensions of TCQ's are obtained via MATLAB's fmincon function. Thirdly, the system's accuracy is analyzed by using total differentiation and the effective length theory. The analysis results are obtained as follows: the maximum transmission errors are appeared when the lever is at the STOP position; the link 3 has more influence to transmission accuracy than link 2, and their influence trends are opposite; the influence for the transmission accuracy which is brought by kinematic pair clearance can be reduced by connecting bearing inner ring and link 3 at the movable point. Finally, according to prototype test and its verification results, it indicates that the test results are consistent with design; the design scheme is correct and workable.
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表 1 轴承径向游隙和轴/孔公差等效表
A点/mm B点/mm O点/mm rA=0.029 rA=0.029 rA=0.029 rA内=0.014 rB内=0.012 rO内=0.014 rA外=0.015 rB外=0.015 rO外=0.027 
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表 2 原理样机试验结果
温度/℃ 油门杆 停车位/mV 最大位/mV 25 左发 -2108 2117 右发 -2111 2108 -55 左发 -2103 2083 右发 -2144 2115 70 左发 -2109 2089 右发 -2092 2106
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