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Multi-objective optimization method based on cell membrane optimization algorithm and used for automotive complex steering system

An optimization algorithm and steering system technology, applied in the field of multi-objective optimization of automobile composite steering system, can solve the problems of local optimal solution, slow convergence, and reduced optimization efficiency.

Active Publication Date: 2017-08-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

However, the existing cell membrane optimization algorithm has the disadvantage of slow convergence, and it is easy to fall into the local optimal solution in the early stage. In the later stage, as the optimal solution approaches, the optimization efficiency decreases.

Method used

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  • Multi-objective optimization method based on cell membrane optimization algorithm and used for automotive complex steering system
  • Multi-objective optimization method based on cell membrane optimization algorithm and used for automotive complex steering system
  • Multi-objective optimization method based on cell membrane optimization algorithm and used for automotive complex steering system

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Embodiment Construction

[0131] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0132] Such as figure 1 As shown, the present invention discloses a multi-objective optimization method for an automobile composite steering system based on a cell membrane optimization algorithm. The automobile composite steering system includes a control module, a mechanical transmission module, an electric power assist module, and an electronically controlled hydraulic power assist module;

[0133] The mechanical transmission module shown includes the steering wheel, steering column, recirculating ball steering unit, tie rod, steering wheel angle sensor, torque sensor and vehicle speed sensor;

[0134] One end of the steering column is fixedly connected to the steering wheel through a steering wheel angle sensor, and the other end is connected to an input end of the recirculating ball steering device;

[0135] The recirculating ball steering de...

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Abstract

The invention discloses a multi-objective optimization method based on a cell membrane optimization algorithm and used for an automotive complex steering system. Mechanical parameters and hydraulic parameters having greater influence on steering performance are selected from the complex steering system to serve as optimization variables, steering feel, steering sensitivity and energy consumption are taken as optimization objectives, and the steering assisting range is taken as a constraint condition, so that the system can obtain good steering feel and steering sensitivity with lower energy consumption.

Description

technical field [0001] The invention relates, in particular, to a multi-objective optimization method for an automobile compound steering system based on a cell membrane optimization algorithm. Background technique [0002] The automotive compound steering system uses both hydraulic power assist and electric power assist to provide power for the steering system, which not only retains the excellent road feel of the hydraulic system, but also has the advantage of low energy consumption of the electric power steering. At the same time, the combination of the two steering systems also makes up for The disadvantage of the two is that the power assist range is small. Therefore, under the dual requirements of energy saving, environmental protection and driving experience, the automotive compound steering system will be an ideal power assist choice for passenger cars and trucks in the future. [0003] However, on the one hand, the research on the electronically controlled compound ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06N3/00
CPCG06F30/15G06F30/20G06F2111/06G06N3/002
Inventor 赵万忠崔滔文王春燕
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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