Method and device for obtaining resistance of automobile steering system
A technology of automobile steering system and system resistance torque, applied in special data processing applications, instruments, electrical digital data processing and other directions, can solve the problems of complexity and changes in steering resistance torque, and achieve the effect of high precision and cycle saving
Active Publication Date: 2018-03-13
GUANGZHOU AUTOMOBILE GROUP CO LTD
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Problems solved by technology
However, the actual situation is far more complicated than this. When the above parameters remain unchanged, changes in tire parameters, suspension parameters, etc. will also cause changes in steering resistance torque.
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[0057] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0058] Such as figure 1 Shown is the main flow diagram of an embodiment of the method for obtaining the resistance of the automobile steering system in the present invention. In this embodiment, it includes the following steps:
[0059]Step S10, determining the axle load, outer wheel rotation angle, inner wheel rotation angle, front wheel kingpin inclination angle, steering rod lever arm length value of the steering system of the automobile, and obtaining the tire contact footprint width and tire contact footprint length, wherein the axle load , outer wheel rotation angle, inner wheel rotation ang...
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An embodiment of the invention discloses a method for acquiring resistance of an automobile steering system. The method comprises steps as follows: determining the axle weight, the outer wheel steering angle, the inner wheel steering angle, the front wheel kingpin inclination angle and the steering linkage force arm length value of the automobile steering system, and acquiring the tire ground mark width and the tire ground mark length; acquiring steering reversal resisting moment and steering friction resisting moment according to parameters; acquiring system resisting moment of the automobile steering system according to the acquired steering reversal resisting moment and the acquired steering friction resisting moment. An embodiment of the invention correspondingly provides a device for acquiring the resistance of the automobile steering system. With the adoption of the method and the device, the resisting moment of the automobile steering system can be acquired very conveniently through calculation, and the accuracy is high.
Description
technical field [0001] The invention relates to the field of automobile design, in particular to a method and a device for obtaining the resistance of an automobile steering system. Background technique [0002] When designing a car, calculating or testing the resistance of the car's in-situ steering system is a prerequisite for steering system design. The resistance of the in-situ steering system is directly related to the type selection or matching of the power steering system. If the calculation result of the in-situ steering resistance is too conservative, it may lead to a waste of steering system resources, and if the calculated system resistance torque is too small, it will lead to insufficient power assistance. [0003] At present, the traditional calculation method has poor calculation accuracy due to too few factors considered. Obtaining the resistance of the steering system through testing often requires a lot of time and energy, and this kind of testing is often...
Claims
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IPC IPC(8): G06F17/50
CPCY02T90/00
Inventor 滕晓涛谷玉川胡伟林成杰
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD