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Method for venting a pneumatic system of a vehicle, pneumatic system and vehicle

A pneumatic system, vehicle technology, applied in the field of exhausting the pneumatic system of the vehicle, the pneumatic system and the vehicle, can solve the problem of unproven, complex modification of the air pressure management system, etc., and achieve the effect of reducing the sound level

Pending Publication Date: 2021-05-04
VOLVO LASTVAGNAR AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, known solutions have not proven effective in reducing noise and also require complex modifications of the air pressure management system

Method used

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  • Method for venting a pneumatic system of a vehicle, pneumatic system and vehicle
  • Method for venting a pneumatic system of a vehicle, pneumatic system and vehicle
  • Method for venting a pneumatic system of a vehicle, pneumatic system and vehicle

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Embodiment Construction

[0046] figure 1 A pneumatic system 1 of a vehicle according to an embodiment of the invention is shown. Vehicles, especially large vehicles such as trucks or buses, may be electric vehicles, ie have motors powered by electrical energy.

[0047] The pneumatic system 1 comprises a pneumatic circuit 2 comprising one or more devices 3 operating with compressed air, such as a pneumatic braking system, a pneumatic suspension system, and the like.

[0048] Compressed air is produced with a variable speed V in a speed range com The air compressor 4 supply. In particular, the air compressor 4 can be driven by an electric motor 5 and powered by a power source that can be combined with a battery pack of the vehicle to drive the air compressor 4 . The air compressor 4 does not have any check valves and is not airtight.

[0049] The pneumatic system 1 includes an air pressure management (APM) system 6 in communication with the air compressor 4 and the pneumatic circuit 2 .

[0050]APM...

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Abstract

A method for venting a pneumatic system of a vehicle, a pneumatic system and a vehicle are provided. In the method for venting a pneumatic system(1) of a vehicle, the pneumatic system (1) comprises an air compressor(4),a pneumatic circuit(2), an air pressure management system (6) in communication with the air compressor (4) and the pneumatic circuit(2), and a control unit. The method comprises: while pressure in the pneumatic circuit (1) is less than a cut-out pressure, supplying the pneumatic circuit (2) with compressed air from the air compressor (4) operated at an operating speed through the air pressure management system(6); once pressure in the pneumatic circuit (2) reaches the cut-out pressure, lowering pressure in the pneumatic circuit (2) to a target pressure, the air compressor (4) being operated at at least one deflating speed lower than the operating speed, the deflating speed being non null; and after pressure in the pneumatic circuit (2) has reached the cut-out pressure, releasing compressed air in the air pressure management system (6) to the outside environment.

Description

technical field [0001] The invention relates to a method for venting a pneumatic system of a vehicle, a pneumatic system and a vehicle. Background technique [0002] Although not limited thereto, the invention is applicable to pneumatic systems of large vehicles such as trucks or buses. [0003] The pneumatic system includes a pneumatic circuit that includes at least one device, such as a pneumatic braking system, a pneumatic suspension system, or other devices that operate using compressed air supplied from an air compressor. The pneumatic system also includes an air pressure management system in communication with the air compressor and the pneumatic circuit to conduct and distribute the compressed air. A control unit is provided for controlling the air compressor and the air pressure management system. [0004] In such pneumatic systems, after the pneumatic circuit has been charged (i.e., the device has been supplied with compressed air to breakout pressure), the pneuma...

Claims

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Application Information

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IPC IPC(8): B60G17/052B60G17/04B60T17/00B60T17/02F15B21/048
CPCB60G17/0408B60G2300/026B60G2300/14B60G2400/50B60G2500/02B60G2500/2012B60G2500/2044B60G2500/205B60G2600/44B60T17/008B60T17/02F15B21/005F15B2211/8616F15B2211/8855F15B2211/6651F15B2211/20515F15B21/048F15B2211/6309F15B2211/6313F15B2211/853F15B13/024F15B2211/565
Inventor 菲利普·勒布吕斯克迈克尔·米莱特皮雷格·盖拉德
Owner VOLVO LASTVAGNAR AB