Skip to main content

Analysis of the Influence of Engine Speed ​​in Automobile Air Conditioner

 

The car air conditioner controller should be able to control the evaporating temperature, superheat, compressor speed, electronic expansion valve opening, evaporator fan speed and car interior temperature at the same time according to certain performance indicators. Unlike household air conditioners, the speed of the car air conditioner compressor changes with the speed of the car engine.

The cooling capacity of the car air conditioner is greatly affected by the engine speed. Therefore, the car air conditioning control system is a multivariable control system. The coupling relationship of various control parameters affects the quality of the car air conditioning control system. Therefore, it is very important to design a controller with a simple precompensator to decouple the coupling system of the car air conditioner.

Air conditioning system is mainly composed of compressor accumulator, expansion valve and other equipment. In the traditional semi-mechanical control system, the constant-capacity compressor controls the start and stop of the compressor through the electromagnetic clutch according to the evaporation temperature, and the thermal expansion valve reduces the pressure of the high-pressure liquid refrigerant to the evaporation pressure, so that it can be vaporized and absorbed in the evaporator. Heat, and it can also control the flow in the evaporator.

Traditional fixed-capacity compressors and expansion valves can no longer meet the requirements of high-efficiency and energy-saving automatic control. Therefore, it is necessary to study the control system of car air-conditioning with a new actuator. It adopts a multi-variable control strategy, and uses a variable speed compressor and an electronic expansion valve to comprehensively control the evaporation pressure and superheat.

In the experiment, a variable-speed compressor was simulated by a constant-capacity compressor driven by an AC motor, and an electronic expansion valve driven by a stepping motor was used for the experiment.

The automotive parts and parts machining, PTJ Shop offers the highest degree of OEM service with a basis of 10+ years experience serving the automotive industry. Our automotive precision shop and experts deliver confidence. We have perfected the art of producing large component volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

Link to this article:Analysis of the Influence of Engine Speed ​​in Automobile Air Conditioner

Reprint Statement: If there are no special instructions, all articles on this site are original. Please indicate the source for reprinting.:Cnc Machining,Thank

Comments

Popular posts from this blog

How does an auto parts company develop

With the party branch as the core of the bank's guidance, the socialist state-owned enterprise must have a strong and combative party organization, so that the majority of employees can have cohesion and the enterprise can compete with the outside world. The three are complementary and mutually supportive. Promoted. The key to the problem lies in whether the party organization has combat effectiveness. If the leadership team has fully played its role, it can unite the masses closely and enable the enterprise to forge ahead toward a common goal. In turn, if the mass foundation is good and the enterprise situation is good, the party organization can be more effective. Work well. The success of Zhanjiang Auto Parts Company fully illustrates this point. They mainly focused on the following tasks: The first is to enhance the combat effectiveness of the leadership team. Party branches and leading cadres are required to have a higher political level and profess...

Powerex CM400DY-24A

# CM400DY-24A Powerex CM400DY-24A New 400A/1200V/IGBT/2U; N Channel 400 A 1.2 kV 2.71 kW 1.2 kV Module, CM400DY-24A pictures, CM400DY-24A price, #CM400DY-24A supplier ------------------------------------------------------------------- Email: sales@shunlongwei.com https://www.slw-ele.com/cm400dy-24a.html ------------------------------------------------------------------- CM400DY-24A Features  · Low VCE(sat)  · Compact package  · P.C. board mount  · Converter diode bridge, Dynamic brake circuit Applications · Inverter for motor drive · AC and DC servo drive amplifier  · Uninterruptible power supply Maxim um ratings and characteristics  .Absolute maximum ratings (Tc=25°C unless without specif...

The heat treatment process of auto parts consumes a lot of energy

  The heat treatment process of auto parts consumes a lot of energy, so it is necessary to work to reduce the energy consumption in each treatment stage, which includes furnace improvement, carburizing process control, quenching medium, cooling rate, etc. However, the operation of these processes is directly related to the properties and hardenability of the processed steel with different compositions. In order to meet the requirements of advanced heat treatment technology, various types of steel have been studied from smelting. The improvement of these steels and related technology has greatly improved the performance and processing productivity of auto parts. The chemical composition and hardenability of steel are the key factors to obtain the best heat treatment effect for auto parts. In order to obtain high-quality small-modulus gears in automotive products, it is necessary to carefully control the surface and core hardness of the gears. The develo...