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Leveling system for a vehicle air suspension

一种车辆、空气弹簧的技术，应用在车辆空气悬架的调平系统领域，能够解决间隔件难以调整、使用有缺点等问题

Inactive Publication Date: 2009-12-23
VOLVO TRUCKS NORTH AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] While spacers are capable of correcting tilted chassis due to unequal loads and equal air pressure in the air springs, their use has disadvantages
Spacers are difficult to adjust and do not always give predictable results

Method used

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  • Leveling system for a vehicle air suspension
  • Leveling system for a vehicle air suspension
  • Leveling system for a vehicle air suspension

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] exist Figure 4 An air suspension for a vehicle front end with a design load imbalance is shown in . The air suspension includes a vehicle frame 12 supported on an axle 14 by air springs 16 , 18 arranged on opposite ends of the axle 14 . A single height control valve 10 is mounted on the left or driver's side (right in the figure) of the frame 12 and responds to changes in height on that side of the vehicle. A source of pressurized air (not shown), which may conveniently be the vehicle's air reservoir, is connected to the altitude control valve. The height control valve 10 is connected by an air line 24 having a first branch 26 connected to the air spring 18 . When the height control valve 10 senses that this side of the frame 12 is lower than normal, it will increase the air pressure in the air spring 18 .

[0014] The height control valve 10 is also connected to the air spring 16 on the opposite end of the axle 14 by an air line second branch 28 . A pressure relief...

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PUM

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Abstract

A system for maintaining a vehicle front end air spring suspension level, for a vehicle having a designed load imbalance, includes a height control valve mounted on the higher load side of the vehicle and controlling compressed air to the air springs of the vehicle suspension. A pressure reduction valve is interposed in a conduit feeding the air spring on the lower loaded side, the pressure reduction valve being set to reduce the pressure of air delivered to the second air spring.

Description

technical field [0001] The invention relates to an air suspension for vehicles of this type with air springs controlled by height control valves. More specifically, the present invention relates to a vehicle air suspension leveling system for a vehicle having a known load imbalance that is capable of automatically leveling the vehicle from side to side. Background technique [0002] In some vehicles, side-to-side loads are intentionally unbalanced, for example, the front left or driver's side of the vehicle will be unbalanced when the driver is present. Additionally, the driver's side has the steering column and steering mechanism, the instrument panel, and may include other components such as the power steering pump and battery. Suspensions in such vehicles can be designed to accommodate the imbalance by providing, for example, stiffer springs. However, this may result in an uncomfortable ride for the driver and passengers. In an air suspension, it is possible to accommo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G17/00
CPCB60G2500/204B60G17/0155B60G2400/60B60G2400/51222B60G17/017B60G2500/30
Inventor 约翰·彼得·拜尔曼三世
Owner VOLVO TRUCKS NORTH AMERICA