Control system of composite electromagnetic suspension and control method thereof

A technology of a control system and a control method, which is applied to suspensions, elastic suspensions, and mechanisms that generate mechanical power, etc., can solve problems such as difficult to maintain air tightness for a long time, complex air suspension structures, and restrictions on promotion, and achieve smooth lifting. performance, improve fuel economy, and achieve the effect of body vibration

Active Publication Date: 2020-05-08
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex structure of the air suspension, it is difficult to maintain air tightness for a long time in harsh environments, and the failure rate is relatively high, which also limits its further promotion

Method used

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  • Control system of composite electromagnetic suspension and control method thereof
  • Control system of composite electromagnetic suspension and control method thereof
  • Control system of composite electromagnetic suspension and control method thereof

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with drawings and specific examples. It should be pointed out that the technical solutions and design principles of the present invention will be described in detail below only with an optimized technical solution, but the protection scope of the invention is not limited thereto.

[0046] figure 1 It is a schematic diagram of the complete structure of the composite electromagnetic suspension system (1 / 4 suspension system) of the present invention, which mainly includes three parts: machinery, power circuit and control system.

[0047] The mechanical structure part mainly includes the main part of the suspension: body (quarter), wheels, springs, wheels and chassis, etc. (all simplified here). The difference from traditional suspension systems is that electromagnetic actuators are used in this suspension. Wherein, the electromagnetic actuator is illustrated by a typical structure composed of a motor and...

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Abstract

The invention discloses a composite electromagnetic suspension control system and a control method thereof. The control system comprises an electromagnetic actuator, a full-bridge circuit, a gating switch, a controllable DC/DC circuit, a rechargeable battery pack, a controller and the like, wherein the electromagnetic actuator is installed at the position of a damper of a traditional suspension system; a motor power line in the electromagnetic actuator is connected with the full-bridge circuit; a signal line of the motor is connected with the controller; the full-bridge circuit is connected with the adjustable power resistor, the controllable DC/DC circuit and the rechargeable battery pack through the gating switch; the output end of the controllable DC/DC circuit is connected with the rechargeable battery pack; a vehicle body posture data acquisition system is used for detecting vehicle body vibration information; and the controller is used for controlling the electromagnetic actuatorin combination with a control strategy according to the vehicle body posture and the vehicle body vibration information. The control method can adopt passive damping control, semi-active control andactive control. The fuel economy of the automobile or the energy utilization rate of the electric automobile can be improved.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and in particular relates to a control system and a control method of a composite electromagnetic suspension. Background technique [0002] The basic components of automobile suspension are spring and damping system (an actuator is added to the active suspension system). During the driving process of the vehicle, various vibrations caused by uneven road surfaces must be attenuated and isolated through the suspension system, and then transmitted to the vehicle body to ensure the comfort of passengers and drivers, and at the same time increase the adhesion of the wheels to the ground , to increase the safety performance of the wheels. It is precisely because the suspension system is closely related to the ride comfort and driving safety performance of the car, so a well-designed suspension system will undoubtedly greatly improve the overall performance of the vehicle. [0003] According to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G17/015B60G17/0195F03G7/08
CPCB60G17/0157B60G17/0195F03G7/08
Inventor 徐俊李士盈郜浩楠梅雪松
Owner XI AN JIAOTONG UNIV
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