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Method for operating an air suspension system, and air suspension system

A technology of air suspension and air spring, which is applied in the direction of suspension, elastic suspension, transportation and packaging, etc., and can solve the problems of dazzling and uneven traffic

Pending Publication Date: 2021-06-18
CONTINENTAL AUTOMOTIVE TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] An uneven and uncontrolled adjustment process has the following disadvantages: For example, the front of a motor vehicle is higher than the rear, which can lead to being blinded by oncoming traffic

Method used

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  • Method for operating an air suspension system, and air suspension system
  • Method for operating an air suspension system, and air suspension system
  • Method for operating an air suspension system, and air suspension system

Examples

Experimental program
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Embodiment Construction

[0051] figure 1 A pneumatic circuit diagram of an electronically adjustable air suspension system 1 of a motor vehicle operating in open air supply mode is shown. It includes a compressor 3 which is driven by an electric motor / motor 2 . A plurality of air springs 5 ​​to 8 are each assigned to the wheels of the motor vehicle as pneumatic adjustment units for height adjustment of the bodywork. Each two air springs are assigned to an axle of the motor vehicle. The air springs 5 ​​and 6 are therefore assigned to the first axle A of the motor vehicle, and the air springs 7 and 8 are assigned to the second axle B of the motor vehicle. Each air spring 5 to 8 is preceded by an air spring valve 21 to 24 . Thus, the air spring valves 21 and 22 belong to the first axle A, and the air spring valves 23 and 24 belong to the second axle B. Optionally, an open air suspension system may have a pressure accumulator for storing compressed air.

[0052] Furthermore, the air suspension system...

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PUM

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Abstract

The invention relates to a method for operating an electronically adjustable air suspension system (1) of a motor vehicle, in which the height position of the motor vehicle can be changed by operating the air suspension system (1), the method comprising the following steps: determining a first pressure value in a first air spring (5, 6) which is assigned to a first axle (A) of the motor vehicle; determining a second pressure value in a second air spring (7, 8), which is assigned to a second axle (B) of the motor vehicle; calculating a pressure difference of the first and second pressure values; determining a first target air volume flow value according to the pressure difference; and operating at least one first air spring valve (21, 22) assigned to the first air spring (5, 6), in this way, the first target air volume flow value is set at the first air spring of the first axle (A) by means of the first air spring valve. The invention also relates to an air suspension system (1) of a motor vehicle.

Description

technical field [0001] The invention relates to a method for operating an air suspension system according to the preamble of the method claims and to an air suspension system according to the preamble of the parallel device claim. Background technique [0002] Electronically controlled air suspension systems for height adjustment of passenger cars are known for a long time. The main components of the air suspension system are adjustable air springs (for body shock absorption) and air supply devices (for providing compressed air). These two components are interconnected by pneumatic lines. In addition, various sensors are provided, such as altitude and pressure sensors, as well as controllers serving as regulating and evaluating devices. A variety of on-off valves are set in the pneumatic pipeline, and these on-off valves are controlled by the controller and adopt different on-off states (open / closed). As a matter of course, the sensors and switching valves are connected t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G17/019B60G17/052
CPCB60G17/019B60G17/0528B60G2500/30B60G2202/152B60G11/27B60G17/0155B60G2400/252B60G2400/51222B60G2500/2021B60G2600/181B60G2800/914
Inventor D·海因
Owner CONTINENTAL AUTOMOTIVE TECH GMBH