Continuously adjustable power-assisted steering method and system and computer equipment
A computer equipment, power steering technology, applied in steering mechanism, electric steering mechanism, circuit or fluid pipeline, etc., can solve the problem of low degree of freedom, unable to meet the preference of steering wheel hand force style, etc., to ensure safety and peace compliant effect
Active Publication Date: 2021-10-26
DONGFENG MOTOR GRP
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Problems solved by technology
[0003] Although the existing technical solutions give the driver the freedom to choose the steering wheel hand force mode to a certain extent, the degree of freedom is not high, and it cannot satisfy everyone's steering wheel hand force style preference
Method used
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[0031] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.
[0032] The continuously adjustable power steering method of the embodiment of the present invention, such as figure 1 shown, including the following steps:
[0033] S1. Calibrate the steering feel of the real car, and calibrate the three sets of map curves A, B, and C for the driver's steering feel that is more sporty, balanced, and more comfortable. The three sets of map curves A, B, and C are three sets of two-dimensional look-up tables based on the steering wheel torque and vehicle speed, and the...
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The invention provides a continuously adjustable power-assisted steering method and system and computer equipment, and the method comprises the steps: carrying out power-assisted steering hand feeling calibration, and calibrating three groups of power-assisted map curves A, B and C of the power-assisted steering hand feelings of motion feeling, balance and bias comfort feeling; the power-assisted map curve is a two-dimensional look-up table for outputting power-assisted current based on the torque of the steering wheel and the vehicle speed; selecting a power-assisted steering percentage coefficient; and performing table look-up by adopting linear interpolation, performing continuous difference on the value of the finally output power-assisted current, and calculating the ID of the finally output power-assisted current. According to the method, by selecting the power-assisted steering percentage coefficient, continuous and adjustable power-assisted steering hand feeling selection can be achieved, and stepless switching is carried out on the condition that the hand power style of a steering wheel is deviated to be light, namely a comfortable mode or deviated to be moving, namely hand power is steady during driving; by setting a switching prohibition condition and setting a dynamic saturation limit value for the output change rate of the power-assisted current, the safety and smoothness of hand feeling switching of the power-assisted steering mode are ensured.
Description
technical field [0001] The invention belongs to the field of vehicle steering assist, and in particular relates to a continuously adjustable steering assist method, system and computer equipment. Background technique [0002] The existing electric power steering system generally has a set of fixed power assist parameters, which makes the steering hand force of the steering system a fixed style. If an independent steering multi-mode or a steering multi-mode linked with the calibration style of the vehicle power system is used, there will be two or three sets of assist parameters to match the driver when choosing a sporty, economical or comfortable style. The steering wheel feels corresponding to the change between light and steady style. [0003] Although the existing technical solutions give the driver the freedom to choose the steering wheel hand force mode to a certain extent, the degree of freedom is not high, and it cannot satisfy everyone's steering wheel hand force st...
Claims
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IPC IPC(8): B62D5/04B62D15/02B60R16/023
CPCB62D5/04B62D15/029B60R16/0231
Inventor 陈开慧王磊李泽彬华铭玮陆吴平
Owner DONGFENG MOTOR GRP