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Method for controlling a compressed air system and compressed air system and vehicle

A technology for compressing air and compressors, applied to the arrangement of pumps/compressors, vehicle components, brakes, etc., which can solve the problems of reducing the load of piston compressors and not giving

Inactive Publication Date: 2019-11-05
KNORR-BREMSE SYST FUER NUTZFAHRZEUGE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it does not give the possibility to reduce the load on the piston compressor especially at low temperatures

Method used

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  • Method for controlling a compressed air system and compressed air system and vehicle

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Embodiment Construction

[0028] According to the figures, the compressed air system 1 has a piston compressor 2 with a plurality of individual pistons 3a, 3b, 3c which suck in air from the surroundings 4 and pump it into a compressed air storage device 5. The piston compressor 2 is coupled to a motor vehicle motor 6 such that the piston compressor 2 has the rotational speed of the motor 6 .

[0029] In this case, the delivery state of the piston compressor 2 is regulated by a delivery control device 7 , which in turn is actuated by a compressor control module 8 . In this case, the compressor control module 8 communicates with a data bus 9 . A data bus 9 (for example in the form of a CAN bus) connects various specialized systems of the motor vehicle. These specialized systems comprise a motor control unit 10 for actuating the motor 6 , for example for determining an upper limit rotational speed, and a sensor 11 for measuring the coolant temperature of the piston compressor 2 , for example in the form...

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Abstract

The present invention relates to a method for controlling a compressed air system (1) of a motor vehicle, wherein a piston compressor (2) is driven by a motor (6) of the motor vehicle, the delivering state of the piston compressor (2) being controlled by a delivery control device (7) and the delivery control device (7) being actuated by a compressor control module (8). According to the invention, compressed air is generated in a compressed air reservoir (5) by the piston compressor (2) in a charging phase, wherein at least one measurement variable is measured by at least one sensor (11) and, thereafter, the at least one measurement variable is compared with an associated threshold value, and wherein the delivery rate of the compressed air is reduced by the control of the piston compressor (2) when the threshold value is exceeded or undershot. The invention further relates to a compressed air system (1) for carrying out the method and to a vehicle comprising such a compressed air system (1).

Description

technical field [0001] The invention relates to a method for controlling a compressed air system of a motor vehicle, comprising the following method steps: a piston compressor is driven by a motor vehicle motor, the delivery state of the piston compressor is regulated by a delivery control device, The delivery regulator is actuated by a compressor control module, the piston compressor generating compressed air in the compressed air reservoir during the filling phase. Furthermore, the invention relates to a compressed air system for carrying out the method and a vehicle having such a compressed air system. Background technique [0002] The field of application of the invention extends to motor vehicles having a compressed air system, for example for operating brakes or other pneumatic devices. The compressed air can be provided by a reciprocating compressor, which is usually coupled without a transmission ratio to the vehicle drive or the motor, so that the rotational speed ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/66B60T17/02
CPCB60T13/662B60T17/02
Inventor O·乌德瓦尔迪R·博茨希克
Owner KNORR-BREMSE SYST FUER NUTZFAHRZEUGE GMBH