The invention relates to the technical field of forklift steering, and discloses an electric steering system of an electric forklift, which comprises a steering axle assembly, a steering wheel assembly, a left drive axle, a right drive axle and a controller assembly, and is characterized in that the steering wheel assembly is provided with a torque sensor for detecting the rotation angle of a steering wheel and outputting steering damping; when the torque sensor detects that the rotating angle of a steering wheel is alpha, the controller assembly controls the rotating angle beta of a steering wheel of the steering axle assembly to be equal to alpha/A, the angular speed omega1 of a left driving wheel of the left driving axle to be equal to beta (cot beta-L/2)/2pirt, and the angular speed omega2 of a right driving wheel of the right driving axle to be equal to beta (cot beta + L/2)/2pirt; wherein A is the amplification coefficient of the steering wheel angle, B is the forklift wheelbase, L is the driving wheel tread, r is the driving wheel radius, and t is the steering time. Therefore, the device has the advantages of light operating force, good following performance and sensitivity, low noise, energy conservation, environmental protection, simple structure and convenience in arrangement in a vehicle.

    本发明涉及叉车转向技术领域,公开了一种电动叉车的电转向系统,包括转向桥总成、方向盘总成、左驱动桥、右驱动桥和控制器总成,方向盘总成设有检测方向盘的旋转角度并输出转向阻尼的扭矩传感器;当扭矩传感器检测到方向盘的转动角度为α时,控制器总成控制转向桥总成的转向轮的旋转角度β=α/A、左驱动桥的左驱动轮角速度ω1=β(cotβ‑L/2)/2πrt、右驱动桥的右驱动轮角速度ω2=β(cotβ+L/2)/2πrt;其中,A为方向盘转角的放大系数,B为叉车轴距,L为驱动轮轮距,r为驱动轮半径,t为转向时间。因此具有操作力轻、跟随性和灵敏性好,噪音小、节能环保,结构简单、便于车内布置的优点。


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    Title :

    Electric steering system of electric forklift


    Additional title:

    一种电动叉车的电转向系统


    Contributors:
    BAO JIANNAN (author) / SUN YINXU (author) / PEI WEI (author) / LI XINGXIN (author) / LIU SHANSHAN (author)

    Publication date :

    2022-12-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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