Electrically controlled suspension system

A suspension system and electronic control technology, applied in the direction of suspension, elastic suspension, transportation and packaging, etc., can solve the problems of poor driving comfort and other issues

Active Publication Date: 2006-12-20
HL MANDO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there will be a problem of poor driving comfort

Method used

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  • Electrically controlled suspension system
  • Electrically controlled suspension system
  • Electrically controlled suspension system

Examples

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Embodiment Construction

[0015] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0016] figure 2 is a block diagram illustrating an electronically controlled suspension system according to the present invention, and image 3 is a diagram showing a nonlinear control gain graph used to calculate the control gain in the present invention.

[0017] refer to figure 2 , the electronically controlled suspension system according to the present invention includes a sensor device 100 , a signal processing device 110 , a control gain determining device 120 , a control command value calculating device 130 , a shock absorber driving device 140 , and a variable shock absorber 150 .

[0018] The sensor device 100 detects vertical acceleration components of the vehicle by using vertical acceleration sensors installed at front, rear, left, and right tire side body parts, and supplies these vertical acceleration components to the signal ...

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Abstract

An electronically controlled suspension system according to the present invention comprises a sensor unit for extracting and providing a vertical acceleration component of a vehicle body of a vehicle; a signal processing unit for calculating a vertical velocity of the vehicle body using the vertical acceleration component provided by the sensor unit; a control gain determining unit having a control gain set according to the amplitude of the vertical acceleration component, and detecting the amplitude of the vertical acceleration component provided by the sensor unit and extracting a control gain corresponding to the detected amplitude; a control command value calculating unit for calculating a control command value using the control gain provided by the control gain determining unit and the vertical velocity of the vehicle body provided by the signal processing unit; and a damper driving unit for driving the variable damper based in the control command value. According to the present invention described above, a control command value for use in controlling a damping force of a damper is calculated using a nonlinear control gain according to a signal outputted from a speed or vertical acceleration sensor, thereby securing ride comfort and control stability.

Description

technical field [0001] The invention relates to an electronically controlled suspension system, in particular to a suspension system that can ensure [0002] Electronically controlled suspension system for ride comfort and stability control. Background technique [0003] A suspension system is usually a shock absorbing device consisting of shock absorbers or springs mounted between the vehicle's axle and frame to smooth the vehicle's vertical motion and to dampen shocks or vibrations transmitted from the road surface , so that shock or vibration cannot be transmitted to the body of the vehicle. [0004] A conventional electronically controlled suspension system will be described below with reference to the accompanying drawings. figure 1 is a block diagram showing a conventional electronically controlled suspension system. [0005] Such as figure 1 As shown, the electronically controlled suspension system includes: a sensor device 10, which detects and provides a vertica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G13/16B60G17/018
CPCB60G2400/202B60G2500/10B60G17/0152B60G17/08B60G17/015B60G2400/82B60G2400/102B60G2800/702
Inventor 金完鎰李贞雨
Owner HL MANDO CORP
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