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Control method for air conditioning refrigerating system of automobile

A technology of refrigeration system and control method, which is applied in the direction of control/regulation system, heating and ventilation control system, temperature control, etc. It can solve the problems of low energy utilization rate and inaccurate control of cooling effect of air conditioning system, etc., and achieve high energy utilization rate , control precise effects

Active Publication Date: 2010-11-03
BYD CO LTD
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AI Technical Summary

Problems solved by technology

[0002] like figure 1 As shown, the existing automotive air-conditioning and refrigeration system is composed of a power control device, a compressor, a condenser, a motor, an expansion valve, an evaporator and a blower, etc. Driven by a motor, the air-conditioning system can operate in pure electric mode. The cooling effect of the air-conditioning system is mainly achieved by controlling the speed of the compressor and the air output of the blower. Currently, the control of the air-conditioning system driven by an independent motor The method is as disclosed in the patent application with publication number CN189663. The controller of the air conditioning system only calculates and controls the rotating speed of the compressor and the air output of the blower according to the difference between the set value and the temperature in the car. Since the calculation is based on fewer parameters , will lead to inaccurate control of the cooling effect of the air conditioning system, resulting in low energy utilization

Method used

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  • Control method for air conditioning refrigerating system of automobile
  • Control method for air conditioning refrigerating system of automobile
  • Control method for air conditioning refrigerating system of automobile

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Embodiment Construction

[0026] Below according to accompanying drawing and embodiment the present invention will be described in further detail:

[0027] A method for controlling a vehicle air-conditioning and refrigeration system provided by the present invention comprises the following steps:

[0028] The temperature sensor detects the temperature Ta inside the car and the temperature T outside the car out , and send a signal to the controller;

[0029] The controller compares the received car interior temperature Ta and car exterior temperature T out Perform processing and calculation, and then perform fuzzy calculation on the calculation results to control the air volume S of the fan and the speed N of the compressor. When controlling the cooling effect of the air conditioning system, not only the temperature inside the car, but also the temperature outside the car must be collected for processing and calculation. At the same time, the method of fuzzy operation is used to make the control of th...

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Abstract

The invention provides a control method for an air conditioning refrigerating system of an automobile, which comprises the following steps: a temperature sensor detects the temperature Ta inside the automobile and the temperature Tout outside the automobile and sends signals to a controller; and the controller processes and computes the received temperature Ta inside the automobile and the temperature Tout outside the automobile, then carries out blurring operation on the computing result, and controls the air output quantity S of a blower and the rotating speed N of a compressor. Using the control method can accurately control the refrigerating effect of the air conditioning system and has high energy utilization rate.

Description

technical field [0001] The invention relates to an automobile air conditioner, in particular to a control method for an automobile air conditioner and refrigeration system. Background technique [0002] Such as figure 1 As shown, the existing automotive air-conditioning and refrigeration system is composed of a power control device, a compressor, a condenser, a motor, an expansion valve, an evaporator and a blower, etc. Driven by a motor, the air-conditioning system can operate in pure electric mode. The cooling effect of the air-conditioning system is mainly achieved by controlling the speed of the compressor and the air output of the blower. Currently, the control of the air-conditioning system driven by an independent motor The method is as disclosed in the patent application with publication number CN189663. The controller of the air conditioning system only calculates and controls the rotating speed of the compressor and the air output of the blower according to the di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00G05D23/20G05B19/04
Inventor 陈芳俞明齐阿喜
Owner BYD CO LTD
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