What does LDWS on a car mean?

1 Answers
VivianAnn
08/29/25 8:45am
LDWS in a car stands for Lane Departure Warning System. The function of LDWS Lane Departure Warning: When the vehicle unintentionally deviates from its lane, the system will sound an alarm to remind the driver to make corrections until the driver adjusts the driving direction. It aims to prevent traffic accidents caused by unintentional lane departure due to driver fatigue or lack of concentration. How the LDWS system works: The Lane Departure Warning System mainly consists of a HUD head-up display, camera, controller, and sensors. When the lane departure system is activated, the camera (usually installed on the side of the vehicle or the rearview mirror position) continuously captures the lane markings, and through image processing, obtains the vehicle's position parameters within the current lane.
Was this review help?
17
4
Share
More Forum Discussions

What Causes the Abnormal Noise When the Sylphy's Air Conditioner is Turned On?

Possible causes include slippage of the air conditioning compressor clutch or a malfunctioning blower. Below are the four cyclic processes of a car's air conditioning system: 1. Compression Process: The compressor inhales low-temperature, low-pressure refrigerant gas from the evaporator outlet and compresses it into high-temperature, high-pressure gas, which is then discharged from the compressor. 2. Heat Dissipation Process: The high-temperature, high-pressure superheated refrigerant gas enters the condenser, where, due to the decrease in pressure and temperature, the refrigerant gas condenses into a liquid, releasing a significant amount of heat. 3. Throttling Process: The higher-temperature and higher-pressure refrigerant liquid passes through the expansion device, increasing in volume while experiencing a sharp drop in pressure and temperature, exiting the expansion device as a mist (fine droplets). 4. Heat Absorption Process: The mist-like refrigerant liquid enters the evaporator. Since the boiling point of the refrigerant is much lower than the temperature inside the evaporator, the refrigerant liquid evaporates into a gas. During the evaporation process, it absorbs a large amount of surrounding heat, after which the low-temperature, low-pressure refrigerant vapor re-enters the compressor. These processes repeat continuously to achieve the effect of lowering the temperature of the air around the evaporator.
6
1
Share

Why does the Wuling Zhiguang make abnormal noise when starting and fail to ignite?

Failure to ignite indicates insufficient engine power, which may be caused by the following reasons: 1. Insufficient fuel supply: The fuel system should inject well-atomized fuel into the cylinder at the right time and in the right amount. If there is a fault in the fuel system, the amount of fuel injected into the cylinder is reduced, leading to less heat generated by combustion. When the heat is insufficient to meet the engine load requirements, the engine will lack power. 2. Influence of air intake: The combustion of fuel in the cylinder mainly results from the chemical reaction between carbon atoms in the diesel and oxygen atoms (generating carbon dioxide), which releases heat. If the air intake is insufficient due to a clogged air filter reducing the air flow cross-section (for engines with turbochargers, a faulty turbocharger can also reduce air intake) or issues with the valve train, the carbon atoms in the fuel cannot fully react with oxygen atoms, resulting in reduced heat release and insufficient engine power. 3. Impact of ambient temperature: High ambient temperatures often cause engine overheating. Under the combined effect of high ambient temperature and engine overheating, the air expands, affecting the engine's air intake and reducing engine power. Conversely, when the ambient temperature is too low, it can lead to poor fuel evaporation in the cylinder, causing incomplete combustion, which means the working medium in the cylinder generates less heat.
8
2
Share

Where is the Wuling Hongguang Antifreeze Located?

The antifreeze reservoir of Wuling Hongguang is located on the right side of the engine compartment, and the antifreeze color is blue or red. Antifreeze replacement cycle: For vehicles that run for long periods, such as taxis, etc. Generally, high-quality antifreeze should be replaced once a year, while vehicles with shorter running times can be replaced every two years or every 30,000 kilometers. To prevent excessive foam formation, which reduces the heat exchange performance between the antifreeze and engine components, ensure that the product is within its validity period when adding it. Long-lasting antifreeze can have a validity period of up to three years. If suspended matter, sediment, or deterioration/discoloration is found in the antifreeze, it should be replaced promptly, and the system should be cleaned. Precautions for antifreeze replacement: Before completely replacing the antifreeze, conduct a comprehensive inspection to check for any signs of leakage in the pipes or cracks, with a focus on inspecting the five-way water pipe. The five-way pipe is named for its five interfaces connecting various parts, and the antifreeze is distributed to different parts of the car through the five-way pipe to function. If there is any leakage of antifreeze in this part, the water pipe should be replaced or the interface should be re-fixed according to the situation.
15
2
Share

Where is the diagnostic socket of Citroen C4L located?

The diagnostic socket of Citroen C4L is located below the steering wheel on the left side, near the fuse box. Here is some information about the Citroen C4L: 1. Body dimensions: The length, width, and height of the body are 4675mm, 1780mm, and 1500mm respectively, with a wheelbase of 2710mm. 2. Engine: The THP series engines are small engines jointly developed by PSA and BMW. This series of engines extensively adopts BMW's advanced technologies, with main advantages including excellent fuel efficiency, power output efficiency, enhanced reliability, and lightweight design. The technical specifications rank among the top in the same class of engines, and over 1 million THP engines have been assembled and sold in Europe.
19
0
Share

Why is Xing Rui cheaper than Lynk & Co 03?

Here is a comparison between Xing Rui and Lynk & Co 03: 1. Exterior: The Geely Xing Rui is based on the new "Time-Space Variation" design concept, featuring a new "Energy Chord Vertical Grille." The shield-shaped outer contour design is inspired by layers of diffusion, and the built-in vertical grille is decorated with chrome trim, enhancing the visual horizontal stretching effect. The Lynk & Co 03 adopts the family-style design of Lynk & Co, with a very avant-garde overall design. The blackened grille, set against the headlights on both sides, offers high recognition. 2. Interior: The interior of the Lynk & Co 03 creates a strong luxurious atmosphere. The three-spoke multifunction steering wheel is wrapped in leather, providing excellent visual and tactile feedback. The 10.25-inch full LCD instrument cluster and the 10.2-inch central control display deliver a strong sense of technology. The Geely Xing Rui adopts the "Time-Space Overlapping Cockpit" design, where flowing and simple lines converge from multiple dimensions to the center of the cockpit, reflecting the "Technology Geely 4.0" craftsmanship concept. It features a full LCD instrument cluster and rich car networking applications.
19
2
Share

What is the reason for the unavailability of radar cruise control in the Avalon?

The reason for the unavailability of radar cruise control in the Avalon is due to a damaged cruise switch; the ECU cannot receive the signal from the cruise solenoid valve. Cruise control allows the vehicle to maintain a set speed as requested by the driver without the need to press the accelerator pedal, enabling the car to travel at a constant speed. This relieves the driver from having to control the accelerator pedal, reducing fatigue and unnecessary speed variations, which can save fuel. Below is an introduction to the basic functions of cruise control: 1. Principle: The principle of the cruise control system mainly involves the cruise control component reading the pulse signal from the speed sensor and comparing it with the set speed. Through precise electronic calculations, it issues commands to ensure the most accurate fuel supply at the set speed. The cruise control is usually located near the steering wheel and is mainly divided into lever-type, steering wheel button-type, and steering wheel control group-type. 2. Maintaining speed: When the cruise control button is pressed, the car can maintain the set speed. Pressing the brake pedal immediately deactivates this function. 3. Speed: Speed can be slightly increased or decreased.
2
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.