Measuring method of rotating inertia and damping parameter of automobile steering control mechanism
A technology of operating mechanism and moment of inertia, which is applied in the field of system parameter identification of vehicle engineering, and can solve problems such as not determining damping parameters at the same time
Inactive Publication Date: 2013-08-07
TSINGHUA UNIV +1
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, there is no measurement method capable of determining the damping between the steering shaft and the steering column, and there is no simultaneous determination of the moment of inertia of the steering wheel and the steering shaft and the relationship between the steering shaft and the steering shaft in the steering mechanism of the steering shaft-assisted electric power steering system. Measuring Method of Damping Parameter Between Steering Columns
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0017] The present invention can be realized by arranging a corresponding measuring device on the steering mechanism of the steering shaft-assisted electric power steering system of the automobile. Such as figure 1 As shown, the steering mechanism of the steering shaft assisted electric power steering system includes a steering wheel 1 , a steering column 2 , a torque sensor 4 with a built-in torsion bar 3 , and a steering shaft 5 . The output end of the torque sensor 4 is connected to a signal acquisition device 6, the torque sensor 4 transmits the measured torque on the torsion bar 3 to the signal acquisition device 6, and the signal acquisition device 6 outputs a corresponding time-domain torque signal.
[0018] It can be seen from the prior art that the steering mechanism of the steering shaft-assisted electric power steering system is a second-o...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a measuring method of rotating inertia and damping parameter of an automobile steering control mechanism. The method is a mathematical model of the steering control mechanism based on steering shaft assistance type motor driven assistance steering system, namely a two-stage oscillating system model of the steering operation mechanism formed by a steering wheel, a steeringpipe column, a torque sensor with a built-in torsion rod and a steering shaft. Moment pulse is applied to the steering wheel, the torque sensor of the steering control mechanism is connected with a signal collection device to obtain corresponding time domain torque signals of a system, frequency characteristic value of the system is determined through fast fourier transform (FFT) of the time domain torque signals and other methods, and the rotating inertia between the steering wheel and the steering shaft and the damping parameter between the steering shaft and the steering pipe column in thesteering control mechanism are further determined. The measuring method does not require additional detection devices, and is simple and easy to implement and capable of being widely used in product design and development simulation processes of the steering shaft assistance type motor driven assistance steering system of an automobile.
Description
technical field [0001] The invention relates to the field of system parameter identification of vehicle engineering, in particular to a system identification method for determining the moment of inertia of the steering wheel and the steering shaft and the relationship between the steering shaft and the steering column in the steering mechanism of the steering shaft-assisted electric power steering system of an automobile. How to measure the damping parameters. Background technique [0002] Because the electric power steering system (hereinafter referred to as EPS) has the advantages of variable power characteristics, energy saving and simple structure, it is gradually replacing the traditional hydraulic power steering system in the field of small and medium-sized vehicles. According to the position of the power assist motor, EPS can be divided into steering shaft assist electric power steering system (C-EPS), pinion assist electric power steering system (P-EPS) and rack assi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/06G01M1/10
Inventor 季学武吕英超刘亚辉孙宁姜殿鑫吕荣华
Owner TSINGHUA UNIV