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Method and device for testing durability of air door of automobile air conditioner

An automotive air-conditioning and durability technology, which is applied in the field of automotive air-conditioning damper durability performance testing, can solve problems such as high requirements for damper durability performance testing methods, and achieve the effect of safe and high-precision durability performance testing.

Inactive Publication Date: 2015-06-03
SHANGHAI BEHR THERMAL SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the original damper durability test method and device cannot meet the higher requirements.

Method used

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  • Method and device for testing durability of air door of automobile air conditioner
  • Method and device for testing durability of air door of automobile air conditioner
  • Method and device for testing durability of air door of automobile air conditioner

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Embodiment Construction

[0036] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. figure 1 It is a flow chart of the automobile air-conditioning damper durability test method of the present invention, figure 2 It is a structural schematic diagram of the automobile air-conditioning damper durability test device of the present invention.

[0037] Such as figure 2 As shown, the automobile air-conditioning damper durability test device of the present invention includes 4 first relays, 4 second relays, a programmable controller 5, an analog expansion module 6, 3 power supplies, a touch screen 8, a computer 9 and a blower relay 13. Among them, the four first relays are respectively first relays 11, 21, 31 and 41, and the four second relays are respectively first relays 12, 22, 32 and 42, all of which are Omron relays; The model is PLC-226CN; the model of the analog expansion module 6 is EM235; the touch screen 8 is a black and white to...

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Abstract

The invention discloses a method and a device for testing the durability of an air door of an automobile air conditioner. The air door of the automobile air conditioner is driven by using a plurality of motors. The method comprises the following steps of: setting a first feedback voltage, a second feedback voltage, first stopping time, second stopping time and a target cycle index; instructing each motor to run and making the feedback voltage of each motor get close to the first feedback voltage; when the feedback voltage of each motor reaches the first feedback voltage, instructing each motor to stop running within the first stopping time; instructing each motor to run and making the feedback voltage of each motor get close to the second feedback voltage; when the feedback voltage of each motor reaches the second feedback voltage, instructing each motor to stop running within the second stopping time; and adding one cycle index, and if the cycle index is smaller than a target cycle index, repeating cycles, otherwise, ending the testing. According to the method and the device, testing of the durability of the air door of the automobile air conditioner and electric stopping of the motors are realized, stopping positions and time can be set, and testing is more reliable and safer.

Description

technical field [0001] The invention relates to a durability test, in particular to a method and a device for a durability test of an automobile air-conditioning damper. Background technique [0002] At present, the damper of the automobile air conditioner is driven by multiple motors. The durability test device of the damper uses the old-fashioned Omron programmable controller PLC. Block the rocker arm of the motor, so that the motor is locked to generate a locked rotor current. After the PLC detects the locked rotor current, it controls the output port to realize the stop position. This kind of device can only be stopped forcibly through mechanical locking, so the control accuracy is low, and the damage to the motor is relatively large if it is constantly blocked, and it cannot stay in the middle position of the damper according to the experimental requirements, and it is impossible to set an accurate position. stop time. [0003] Faced with the increasing needs of OEMs,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00
Inventor 黄佳笛柯胜涛
Owner SHANGHAI BEHR THERMAL SYST
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