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Controller of multi-mode active steering system and control method of multi-mode active steering system

An active steering and multi-mode technology, applied in the direction of automatic steering control components, electric steering mechanism, power steering mechanism, etc., can solve the problems of hydraulic power steering system steering economy, poor handling stability, etc., to improve handling stability, improve Control precision, perfectly blended results

Active Publication Date: 2017-05-31
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0006] Aiming at the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a multi-mode active steering system controller and its control method to solve the problem of poor steering economy and steering stability of the hydraulic power steering system in the prior art. question

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  • Controller of multi-mode active steering system and control method of multi-mode active steering system

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Embodiment Construction

[0028] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0029] refer to figure 1 , figure 2 As shown, a multi-mode active steering system includes: steering wheel 1, sensor module 2, steering column 3, planetary gear set 4, steering gear 7, electronic control unit (ECU) 12, steering rocker arm 17, servo motor C14 , electric push rod 19, first reduction mechanism 13, servo motor A6, second reduction mechanism 5, servo motor B10, hydraulic pump 9, oil storage tank 11, rotary valve 8, hydraulic booster cylinder 15 and booster coupler 16;

[0030]The steering wheel 1 is connected to the torque input end of the steering column 3, the sensor module 2 is placed between the steering wheel 1 and the steering column 3, and is connected to the electronic ...

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Abstract

The invention discloses a controller of a multi-mode active steering system and a control method of the multi-mode active steering system. The controller is characterized in that coordination control is performed on a plurality of power-assisted actuating mechanisms of the system by taking a system energy consumption function as a control objective, wherein the system energy consumption function comprises motor energy consumption, hydraulic mechanism energy consumption, controller energy consumption and mechanical steering mechanism energy consumption; a sensor module acquires and transmits signals of all parts of the steering system to an energy analysis module; the system energy consumption function is solved by the energy analysis module; a calculated result is transmitted to an electronic control unit; and the electronic control unit performs the coordination control on the power-assisted actuating mechanisms of the system by taking the system energy consumption function as the control objective and taking an ideal power assistance characteristic of the system as a constraint condition. Therefore, steering economy is realized when output power assistance under the constraint condition is ensured to meet an ideal power assistance curve.

Description

technical field [0001] The invention relates to the technical field of automobile power steering system control, and specifically refers to a multi-mode active steering system energy-power-assist controller and a control method thereof. Background technique [0002] Energy saving, environmental protection and safety are the three major themes in the development of automobile technology in the world today. With the increasingly severe energy crisis and increasingly stringent regulations on automobile fuel consumption, all assemblies and parts on automobiles should develop in the direction of energy conservation and environmental protection. The energy consumption of automobiles occupies a considerable proportion in the national economy. While consuming energy, it also produces exhaust gas, pollutes the environment, and causes global warming. Therefore, governments all over the world now attach great importance to the energy consumption of automobiles. [0003] Compared with t...

Claims

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Application Information

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IPC IPC(8): B62D5/04B62D5/06B62D6/00B62D101/00B62D119/00B62D137/00
CPCB62D5/0463B62D5/0481B62D5/06B62D6/00
Inventor 栾众楷赵万忠王春燕
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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