Browse

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Pet Supplies Sporting Goods Ticket Toys Games Transportation Others

Used Cars New Cars Others

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

What are the classifications of automotive air conditioning systems?

2 Answers

LaTheo

07/25/25 5:33am

Automotive air conditioning systems are classified as follows: 1. By driving method: Independent type, Non-independent type. 2. By air conditioning performance: Single-function type, Combined heating and cooling type. 3. By control method: Manual type, Electrically controlled pneumatic regulation. 4. By regulation method: Fully automatic regulation, Microcomputer-controlled fully automatic regulation. The functions of automotive air conditioning are as follows: 1. The air conditioner can control the temperature inside the vehicle cabin, both heating and cooling the air to maintain a comfortable level. 2. The air conditioner can remove moisture from the air. Dry air absorbs human sweat, creating a more comfortable environment. 3. The air conditioner can intake fresh air, providing ventilation. 4. The air conditioner can filter the air, removing dust and pollen.

Was this review help?

10

2

Share

HavenAnn

08/10/25 5:49pm

As an ordinary car owner, I have observed in daily driving that automotive air conditioning systems are mainly categorized into manual, semi-automatic, and automatic types. Manual air conditioning was the first type I encountered, requiring manual adjustment of fan speed and temperature knobs. While it offers direct control, it can feel cumbersome to operate, especially during long-distance driving. Semi-automatic air conditioning, like those found in some older car models, allows setting a basic temperature before automatically adjusting some fan speed functions, offering relatively better comfort but lacking intelligence. Fully automatic air conditioning is now the mainstream in modern vehicles, utilizing electronic control modules to automatically manage cooling and heating airflow based on sensor inputs. Models with zone control, such as dual-zone or multi-zone systems, enable front and rear passengers to set different temperatures. This classification significantly impacts comfort; manual air conditioning is common in budget models and easier to maintain, while automatic air conditioning is more prevalent in high-end vehicles, providing a superior experience. Air conditioning choice also relates to energy efficiency; automatic systems may optimize temperature settings better, reducing compressor workload and indirectly saving fuel. I believe regular cleaning of filters can prevent odor issues.

Was this review help?

19

1

Share

Expand All

More Forum Discussions

Which Volkswagen model is the Variant?

Variant is the Volkswagen Variant wagon. The Volkswagen Variant wagon is a station wagon produced by the Volkswagen Group, with a body weight of 1593kg. Below is relevant information about Volkswagen: 1. Introduction: Volkswagen (German: Volkswagen) is an automobile manufacturer headquartered in Wolfsburg, Germany, and is the core enterprise of the Volkswagen Group, one of the world's four major automobile manufacturers. 2. Brand logo: The VW in the logo stands for the first letters of its full name. The logo appears to consist of three 'V's made with middle and index fingers, symbolizing the company and its products' determination to win-win-win.

Does a Manual Transmission Need Fluid Changes?

Manual transmission vehicles do require periodic fluid changes, as fresh transmission fluid ensures proper gearbox operation and extends the drivetrain's service life. If you experience symptoms like rough shifting, jerking motions, sluggish acceleration, or unusual transmission noises, these may indicate insufficient fluid levels or degraded viscosity - signaling the need for a fluid change. Generally, manual transmission fluid should be replaced every 3 years or 80,000-100,000 kilometers. Routine maintenance is crucial. Periodically inspect for transmission leaks and monitor fluid condition. Top up immediately if levels are low, and replace promptly if the fluid appears darkened or contaminated.

Why is the car air conditioning not cooling effectively?

The reasons why the car air conditioning is not cooling effectively are as follows: 1. Insufficient Freon: When the ambient temperature is around 35 degrees Celsius, the air conditioning shows a low pressure of 0.45mp and a high pressure above 2.5mp, with a static pressure of 1.1-1.2mp. This usually occurs in older air conditioning systems that have been in use for three to four years. The cooling effect of the air conditioner decreases. Older air conditioners use Freon as a refrigerant, which can evaporate over time. Therefore, users only need to visit a professional air conditioning repair shop to have it refilled. Additionally, improper installation causing Freon leakage or issues with the machine itself cannot be ruled out. 2. Power supply voltage: Insufficient power supply voltage. The normal starting voltage for air conditioning is 220v+-10%. In China's power supply system with a phase voltage of 220v and a line voltage of 380v, almost all compressors can start at 200v or above. At 180v or above, 70-80% can start, and at 160v or above, only a few can start. Below 160v, it is almost impossible to start. Based on experience, a starting voltage above 190v is more reliable for the compressor. 3. Insufficient power: The general selection principle for air conditioning power is: 150-250w/square meter for cooling and 250-350w/square meter for heating. Additionally, factors such as space height, orientation, sealing performance, and number of occupants should be comprehensively considered.

How many points are deducted for reversing at a wrong turn in a regular intersection?

Reversing on a regular road results in a deduction of 3 points. Below are the point deduction scenarios for reversing on the road: 1. Driving a motor vehicle in the opposite direction on a regular road results in a deduction of 3 points per offense. 2. Driving a motor vehicle in reverse, going against traffic, or making a U-turn across the central divider on a highway results in a deduction of 12 points per offense. 3. According to Article 90 of the Road Traffic Safety Law, motor vehicle drivers who violate road traffic safety laws and regulations regarding road traffic rules will be subject to a warning penalty. The calculation of the driver's license point accumulation cycle starts from the day the license is initially issued, with each cycle lasting 12 months. According to the 'Regulations on the Application and Use of Motor Vehicle Driver's Licenses,' Article 65, the cumulative point cycle for road traffic safety violations (i.e., the point cycle) is 12 months, with a maximum of 12 points, calculated from the date of initial issuance of the motor vehicle driver's license.

How Many Years Until a Car is Scrapped?

Non-commercial vehicles and commercial vehicles have different scrapping periods, as detailed below: Scrapping Regulations for Non-commercial Vehicles: For household 5-seat sedans and 7-seat SUVs, as well as small and micro non-commercial vehicles, there is no usage period limit. However, when the mileage reaches 600,000 kilometers, the state will guide the vehicle to be scrapped. In addition to the above vehicles, small and micro non-commercial passenger vehicles, large non-commercial sedans, and wheeled special machinery vehicles also have no usage period limit. Common Scrapping Regulations for Commercial Vehicles: Small and micro taxi passenger vehicles have a scrapping period of 8 years, medium-sized taxi passenger vehicles have a scrapping period of 10 years, and large taxi passenger vehicles have a scrapping period of 12 years. Public transport passenger vehicles have a scrapping period of 13 years, other small and micro commercial passenger vehicles have a scrapping period of 10 years, and large and medium-sized commercial passenger vehicles have a scrapping period of 15 years. Micro commercial trucks have a scrapping period of 8 years, light and large commercial trucks have a scrapping period of 10 years. The vehicle scrapping process is as follows: The car owner applying for scrapping and renewal must fill out the "Motor Vehicle Change, Transfer, Modification, Suspension, Scrapping Approval Application Form" in duplicate and affix the owner's seal. The registration office will accept the application and issue a "Vehicle Scrapping Notice" for vehicles that have reached the scrapping period. For vehicles that have not reached the scrapping period, if they meet the scrapping standards after inspection by the motor vehicle inspection office, a "Vehicle Scrapping Notice" will be issued. The owner can choose a qualified recycling company to dismantle the vehicle with the "Notice". The recycling company will dismantle the vehicle and take photos after verifying the "Notice". The engine must be separated from the vehicle, the engine block must be broken, and the frame (chassis) must be cut. The owner must submit the "Change Form", "XX Province Vehicle Renewal Technical Appraisal Form", "Scrapped Vehicle Recycling Certificate", and photos of the dismantled vehicle to the motor vehicle inspection office for verification and signature. The license plates will be reclaimed, and the approval will be processed according to regulations to complete the scrapping registration. Special Notes: According to Article 30 of the "Motor Vehicle Registration Regulations", if the vehicle is damaged and cannot be driven back to the registration location, the owner can hand over the scrapped vehicle to a local motor vehicle recycling company. If a commercial vehicle is converted to a non-commercial vehicle, it must be scrapped according to the original commercial vehicle's scrapping period. According to Article 43 of the "Motor Vehicle Registration Regulations", after completing the transfer or cancellation registration of a motor vehicle, the original owner can apply to use the original license plate number when registering a newly purchased motor vehicle. The application must meet the following conditions: (1) The application must be submitted within six months after the transfer or cancellation registration; (2) The owner must have owned the original vehicle for more than three years.

Manual Transmission Braking: Clutch First or Brake First?

Manual transmission braking involves different sequences of clutch and brake usage depending on the situation: 1. Hill parking: Brake before clutch. Apply brakes first, then clutch. When the clutch is depressed, the car effectively enters neutral, losing engine resistance and potentially rolling downhill. 2. Deceleration and downshifting: Brake before clutch. When slowing from fourth to third gear, or when preparing for turns, U-turns, or stops requiring downshifting from third to second, first brake to reduce speed, then engage clutch for gear change once within appropriate speed range. 3. High-speed emergency stops: Brake before clutch. At higher speeds, vehicle inertia increases significantly - depressing clutch first would amplify this effect, making brake-first approach essential. 4. Speed-restricted zones: Light braking without clutch. In areas requiring reduced speed (e.g., bus stops, school zones) below 30 km/h, gentle braking suffices without clutch engagement. 5. Gradual stopping: Clutch before brake. For red light stops or final parking maneuvers, engage clutch first then brake. At low speeds, increased tire-ground friction makes brake-first approach likely to stall the engine. 6. Emergency situations: Simultaneous clutch-brake. During urgent stops, fully depress both clutch and brake simultaneously to prevent stalling.

Trending Ranking

Do I need to pay again when transferring to a different driving school?

What is the top speed of the CFMoto NK250?

Is it acceptable for the car body to touch the line during a right-angle turn?

Are there any legally roadworthy RX7s in China?

What is the difference between single axle and double axle?

Which Honda CR-V models and years are affected by engine oil dilution?

How Many Degrees Does Each Mark on the Temperature Gauge Represent?

What kind of car is the Verano 15S from Buick?

What is the wading capability of the NIO ES6?

What is the function of the car VVT valve?

More Forum Discussions

What is the current of the 12V power supply in the car cigarette lighter?

What is a Vauxhall car?

Where is the water temperature gauge on the Vezel?

What is the SOS button in a car used for?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.