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Automobile steer-by-wire system modeling and joint simulation method, medium and equipment

A steering system and co-simulation technology, applied in design optimization/simulation, special data processing applications, geometric CAD, etc., can solve the problems of harsh site requirements, long development cycle, high cost, etc.

Pending Publication Date: 2021-09-28
的卢技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are inherent disadvantages in the actual vehicle road test: 1. It is expensive, long in the development cycle, and there are certain risks, requiring specialized test personnel; 2. It needs to be tested under different working conditions and environments, and the requirements for the site are relatively harsh.

Method used

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  • Automobile steer-by-wire system modeling and joint simulation method, medium and equipment
  • Automobile steer-by-wire system modeling and joint simulation method, medium and equipment
  • Automobile steer-by-wire system modeling and joint simulation method, medium and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, a method for modeling and co-simulating an automobile steering-by-wire system includes the following steps:

[0035] (1) Establish a dynamic model of the steering-by-wire system in Adams / car; step (1) is specifically:

[0036] (1.1) Delete the steering intermediate shaft;

[0037] (1.2) Establish the steering motor, and connect the steering motor with the steering gear housing with a rotating pair;

[0038] (1.3) Establish the gear pair, the input kinematic pair is the rotation pair between the steering motor and the steering gear housing, and the output kinematic pair is the rotation pair between the steering input shaft and the steering gear housing. Add the rotary pair displacement drive to the input kinematic pair to drive the motor to rotate;

[0039] (1.4) Establish a centering torque motor at the position of the steering column, and connect it with the vehicle body with a rotating pair; change the cylindrical pair of the steering col...

Embodiment 2

[0050] A computer storage medium, on which a computer program is stored, is characterized in that, when the computer program is executed by a processor, the above method of modeling and co-simulation of an automobile steering-by-wire system is realized.

Embodiment 3

[0052] A computer device, comprising a memory, a processor, and a computer program stored in the memory and capable of running on the processor, characterized in that, when the processor executes the computer program, the above-mentioned automobile steering-by-wire system is implemented. Model and co-simulation method.

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PUM

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Abstract

The invention discloses an automobile steer-by-wire system modeling and joint simulation method, a medium and equipment. The method comprises the following steps: (1) establishing a steer-by-wire system dynamics model in Adams / car; (2) setting input and output variables relative to simulink; and (3) establishing a control block diagram in the simulink, adding a control strategy, and running joint simulation. According to the invention, a mode of Adams and simulink joint simulation is adopted, a control interface and the control strategy are added for a driving rotation angle and an aligning torque, expansion, iteration and optimization of a variable transmission ratio control strategy and an aligning torque control strategy of a steering system can be realized, and simulation support is provided for development of a steer-by-wire system.

Description

technical field [0001] The invention relates to an automobile steering-by-wire system, in particular to a modeling and joint simulation method, medium and equipment for an automobile steering-by-wire system. Background technique [0002] The traditional automobile steering system uses a mechanical connection between the steering wheel and the steering wheel, while the automobile steering-by-wire system cancels the mechanical connection between the steering wheel and the steering wheel, which greatly increases the design space of the steering characteristics of the automobile. [0003] The research and development of the steering-by-wire system for automobiles requires a lot of experiments. The best way is to obtain the best steering characteristics and road feel through real vehicle road tests. However, there are inherent disadvantages in the real vehicle road test: 1. It is expensive, long development cycle, and there are certain risks, requiring specialized test personnel;...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/20
CPCG06F30/15G06F30/20
Inventor 孙亚龙
Owner 的卢技术有限公司
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