A method for limiting the position of the steering wheel in a steer-by-wire system
A technology of steer-by-wire and steering wheel, which is applied to steering mechanism, electric steering mechanism, power steering mechanism, etc. It can solve the problem that the active steering control system cannot be accurately limited, and achieves simple design method, high accuracy, and small device size Effect
Active Publication Date: 2020-09-25
HEFEI UNIV OF TECH
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Problems solved by technology
[0005] A method for limiting the position of the steering wheel of the steering wheel by wire system proposed by the present invention can solve the technical problem that the existing active steering control system cannot accurately limit the limit position of the steering wheel
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[0034] The present invention will be further described below in conjunction with accompanying drawing:
[0035] Such as figure 1 As shown, the steering wheel limiting device of the steer-by-wire system described in this embodiment includes a mounting stand and a steering mechanism, and also includes a gear limiting mechanism and a road feeling regulating mechanism. The steering mechanism, the gear limiting mechanism and the road feeling The control mechanisms are respectively arranged on the installation stand, and the steering mechanisms are respectively connected with the gear limit mechanism and the road feeling control mechanism; wherein,
[0036] The steering mechanism includes a steering wheel 21, a steering column 23 and a universal joint 25; the steering wheel 21 is fixed on the top of the steering column 23 through a nut, and the steering column 23 is fixed on the mounting platform by a U-shaped clamping plate 24 On the frame, the bottom end of the steering column 23...
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The invention discloses a steering wheel limit device and method for a steering-by-wire system. The technical problem can be solved that an existing active steering control system can not accurately limit the steering wheel limit position. The device includes an installation rack, a steering mechanism, a gear limiting mechanism and a road sense control mechanism. The installation rack includes a fixed panel, a pipe column fixed plate, a motor fixed plate and a test bench frame. The steering mechanism includes a steering wheel, an angle sensor, a steering pipe column, an U-shaped clamping plateand a universal joint. The gear limiting mechanism includes a small gear, a semi-circular gear, a gear shaft, a limit shaft, a fixed block and a deep groove ball bearing. The road sense control mechanism includes a flange and a road sense motor. The device can provide a stable road sense when the steering wheel is rotated, at the limit position, a road sense motor provides larger drag torque at the limit position for limiting, and a guarantee is provided for program control limit by means of mechanical contact. The design method is simple, the device is small in size, the limit precision is high, and the accuracy is high.
Description
technical field [0001] The invention relates to the technical field of steering wheel limit of a vehicle active steering system, in particular to a steering wheel limit method of a steer-by-wire system. Background technique [0002] The active steering system cancels the mechanical connection between the steering column and the steering wheel, and gets rid of the mechanical limitations of the traditional steering system. Compared with the traditional steering system, the active steering system has the advantages of variable transmission ratio, reducing the impact of bad road feedback on the driver's feel; at the same time, more sensors and control elements are added. In the active steering system, the limit force when the steering wheel is turned to the limit position is no longer provided by the wheel through mechanical connection, but by the ECU through the control of the road induction motor. [0003] For the program control limit, when the steering wheel turns to the li...
Claims
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IPC IPC(8): B62D5/00B62D5/04
CPCB62D5/006B62D5/0469
Inventor 赵林峰朱天阳胡延平张锐陈蒋鹏飞田博谢有浩陈无畏
Owner HEFEI UNIV OF TECH