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Method for controlling air-conditioning compressor, compressor and motor vehicle

A technology for air-conditioning compressors, motor vehicles, applied in vehicle components, mechanical equipment, transportation and packaging, etc., can solve problems such as engine stall, lack of accuracy, inability to reliably reduce or avoid slippage, etc., to achieve accurate slippage detection , the effect of improving the accuracy

Pending Publication Date: 2022-07-19
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, each of these solutions known from the prior art lacks precision in detecting the presence of slip, since they all monitor parameters that are affected not only by the slip itself but also by many disturbance events
Therefore, the above solutions cannot reliably reduce or avoid slippage which can lead to clutch damage and in worst case engine stall conditions

Method used

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  • Method for controlling air-conditioning compressor, compressor and motor vehicle
  • Method for controlling air-conditioning compressor, compressor and motor vehicle
  • Method for controlling air-conditioning compressor, compressor and motor vehicle

Examples

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Embodiment Construction

[0038] exist figure 1 , an example of the air conditioner compressor 2 is shown in a perspective view. The air-conditioning compressor 2 according to the present invention may be able to be adapted to a motor vehicle, the motor vehicle itself not being shown in its entirety in any of the figures. exist figure 2 The motor vehicle 11 comprising the air-conditioning compressor 2 schematically shown in is an electric vehicle driven by an electric motor or a conventional vehicle driven by an internal combustion engine. Either way, the motor vehicle 11 has an external power plant 12 with which the motor vehicle 11 can be propelled. Where the motor vehicle 11 is an electric vehicle, the external power plant 12 is an electric motor. In another case where the motor vehicle 11 is a conventional vehicle, its external power plant 12 is an internal combustion engine. The external power unit 12 of the motor vehicle 11 drives the electromagnetic clutch 1 of the air-conditioning compress...

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PUM

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Abstract

An electromagnetic clutch (1), in particular for an air-conditioning compressor (2) of a motor vehicle (11), transmits torque to a drive shaft (3) of the compressor (2) as a function of a current (I) fed to a clutch coil (4) of the electromagnetic clutch (1) to generate an electromagnetic clutch force. According to the control method (10), the slip of the electromagnetic clutch (1) is determined from the difference between the rpm of the electromagnetic clutch (1) and the rpm of the drive shaft (3) and is monitored by a slip sensor (5). The current (I) and the generated clutch force are adjusted by a pulse width modulation controller (6) of the compressor (2) as a function of the slip. A pulse width modulation controller (6) is electrically connected to the clutch coil (4) and modulates the pulse width of the current (I) fed to the clutch coil (4).

Description

technical field [0001] The present invention relates to a method for controlling an electromagnetic clutch of an air conditioner compressor and an air conditioner compressor having an electromagnetic clutch that can be controlled by this method. The invention also relates to a motor vehicle comprising an air-conditioning compressor according to the invention. Background technique [0002] Typically, the air conditioner compressor is driven via an electromagnetic clutch capable of transferring torque generated by external power equipment to the compressor drive shaft without any physical contact with the compressor drive shaft. The main components of the electromagnetic clutch are the pulley, the coil and the clutch driver. The external power equipment transmits its torque to the clutch pulley via a serpentine belt. The clutch coil generates an electromagnetic force that engages the clutch driver with the rotating pulley. The amount of transmittable torque generally depend...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/32
CPCB60H1/3208B60H1/3222B60H1/3225F16D48/064F16D2500/1022F16D2500/10418F16D2500/10475F16D2500/30406F16D2500/30415F16D2500/70418F16D2500/70404F16D2500/7109F16D2500/7061F16D2500/70689F16D2121/20
Inventor 欧内斯托·J·古铁雷斯威廉姆·R·布兰得利理查德·博顿
Owner MAHLE INT GMBH
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