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Electric assisting steering system based on intelligence control

An electric power steering, intelligent control technology, applied in steering mechanism, steering rod, program control in sequence/logic controller and other directions, can solve problems such as large pulsating torque, unstable steering control, poor hand feel, etc., to achieve simple calculation , the effect of improving efficiency

Inactive Publication Date: 2007-10-24
林士云
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The EPS system in the prior art is multi-variable and non-linear input, and the direct torque control system using the linear control algorithm has a large pulsating torque and unstable steering control, resulting in poor driving comfort and controllability. The performance is that the feel when turning is relatively poor

Method used

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  • Electric assisting steering system based on intelligence control
  • Electric assisting steering system based on intelligence control
  • Electric assisting steering system based on intelligence control

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Embodiment Construction

[0064] The basic structure principle block diagram of the electric power steering system based on the intelligent control of the present invention is shown in Fig. 1 . It consists of steering input 1 and its torque sensor 2, vehicle speed and rotational speed input 3, intelligent electronic controller 4, steering mechanism 5 including steering gear and reducer 51 and drive motor 52, and steering wheel 6 of the whole vehicle. The steering input 1 of the steering wheel is mechanically connected to the steering gear and the speed reducer 51 of the torque sensor 2 and the steering mechanism 5, and the torque sensor 2 and the vehicle speed and rotational speed input 3 are connected to the input data interface of the intelligent electronic controller 4: the input data interface of the intelligent electronic controller 4 The control data is connected to the current control terminal of the drive motor 52 through its output control interface, the drive motor 52 is connected to the steer...

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PUM

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Abstract

In order to get rid of the direct torque control system bigger pulse torque issue, it invents an electric power driven assistant steering system based on intelligence control, introducing fuzzy neural network into the electric driven torque control, not relying on the controlled precision model, with the established fuzzy strategy being able to get rid of the nonlinear strong coupling defects of the fuzzy strategy, with better self learning, parameter automatic control and adjustment, improved system self adaptation abilities. The controller is made of MCU, PWM, and the power source module, with torque, velocity, and driven locomotive feedback current as the input language variable, through offline model construction, it forms control strategy and on line control, realizing electric assisted steering intelligent control. It applies to sedans, fuel cars, locomotives, with agile and light weight, greatly improved in operation comfort and stability.

Description

technical field [0001] The invention belongs to the technical field of motor vehicle electric control, and relates to an electric power steering device, in particular to an electric power steering system based on intelligent control. Background technique [0002] Electric power steering system (EPS) is the development direction of modern automobile steering system and one of the high-tech industries. my country's automobile output reached 4 million in 2003, and exceeded 6.4 million in 2006, increasing at a rate of 20% per year. At present, most of the cars use mechanical steering or hydraulic power steering, and only a few high-end cars use electric power steering. device. According to the development trend of the automobile industry in the future, most miniature cars and cars will use electric power steering. Therefore, the market prospect of electric power steering control systems is very broad. [0003] The EPS system represents the development direction of the steering ...

Claims

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Application Information

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IPC IPC(8): B62D6/00G05B19/04
Inventor 林士云
Owner 林士云
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