How Does a Car Cruise Control System Work?

How Long Does an AT Transmission Last?

AT transmissions have a long lifespan, offering stable performance and robust durability, essentially lasting as long as the vehicle itself, typically over ten years. This is because AT transmissions can handle extremely high torque limits, making them suitable for many off-road vehicles and military applications, where they endure tough towing and challenging terrains without issue. However, they are prone to overheating and have less favorable fuel efficiency. Methods to extend transmission lifespan: 1. Replace transmission fluid according to the specified time or mileage: While many manufacturers claim transmissions are maintenance-free, the recommended fluid change interval is 60,000-80,000 km (varies by model). After the first service, it's advisable to change the fluid every 40,000-60,000 km to prevent degradation. 2. Avoid keeping the transmission in D (Drive) gear when stationary: Leaving the gear in D means the transmission is still working, with internal parts rubbing against each other and agitating the fluid, which raises the temperature. Over time, this can cause premature fluid degradation, reducing lubrication and cooling efficiency, thereby accelerating transmission wear.

16

0

Share

What does MPV mean?

MPV stands for Multi-Purpose Vehicle, which evolved from station wagons. It combines the spacious passenger area of a station wagon, the comfort of a sedan, and the functionality of a van, typically featuring a two-box structure with seating for 7-8 people. Strictly speaking, MPVs are primarily designed for family use, and those passenger vehicles converted from commercial vans for group customers cannot be considered true MPVs. MPVs generally offer more space than sedans of the same displacement, and they come in various sizes, though not as finely categorized as sedans. Here are some classic MPV models: 1. Odyssey: This vehicle meets most of the needs for a family car. It excels in power and fuel efficiency, features a flexible 7-seat layout, and offers low maintenance costs with excellent durability. With a three-year resale value retention rate of over 60%, it is an ideal choice for a family car. 2. Elysion: The Elysion is an MPV model under Dongfeng Honda. Unlike the Odyssey, the Elysion leans more towards business use. As a Honda vehicle, the Elysion's standout feature is its excellent space utilization, along with an engine that balances fuel efficiency and power. The overall maintenance costs are also quite reasonable. 3. Alphard: Originally, MPVs were considered niche models in the domestic market, with luxury MPVs being even rarer. However, the Alphard has won over consumers with its bold and imposing exterior design.

14

1

Share

Should the G-sensor of the dash cam be turned on?

The G-sensor of the dash cam can be turned on. However, it is best to set it to a low option and regularly format the memory card to prevent the memory card from storing too many videos that cannot be overwritten, which would reduce the available memory for loop recording. Here is some relevant information: 1. G-sensor: The G-sensor, also known as impact storage, works by detecting when the value read by the dash cam's CPU from the gravity sensor exceeds the set threshold, indicating a collision. It then protects the current video segment from deletion, thus enabling automatic storage upon collision. 2. Composition: The G-sensor system is a sophisticated protection device, typically consisting of three parts: the sensor, processor, and controller. For dash cams, the G-sensor is the sensor, while the processor and controller are the main chips of the dash cam. Once the sensor detects and the processor determines that the current gravitational acceleration exceeds the specified value, the controller will issue instructions to specially protect the current video file or sound an alarm. This series of actions is completed within 200 milliseconds. The device will resume normal operation only after the sensing device detects that the acceleration value has returned to the normal range.

17

4

Share

What types of vehicles can be driven with an A2 driver's license?

A2 driver's license permits the operation of tractor-trailers. Holders of a valid A2 license issued by China's public security traffic management authorities can drive heavy and medium-duty full trailers and semi-trailers, as well as vehicles permitted under B1, B2, C1, C2, C3, C4, C6, and M licenses. Details are as follows: B1 license: Permits driving medium-sized passenger vehicles not exceeding 6 meters in length, with a seating capacity of 10 to 19 passengers. B2 license: Permits driving heavy and medium-duty trucks or large, medium, and heavy-duty specialized operation vehicles, commonly known as cargo trucks on the road. C1 license: Permits driving small and mini passenger vehicles, as well as light and mini cargo vehicles, and light, small, and mini specialized operation vehicles. C2 license: Permits driving small and mini automatic transmission passenger vehicles, as well as light and mini automatic transmission cargo vehicles. C3 license: Permits driving low-speed cargo vehicles. C5 license: Permits driving small automatic transmission passenger vehicles specially designed for disabled individuals. C6 license: Permits driving light trailer vehicles. M license: Permits driving wheeled self-propelled machinery. Since an A2 license can only be obtained through an upgrade, the prerequisite for obtaining an A2 license is holding a B1 or B2 license. A B2 license can be applied for when initially obtaining a driver's license, but the applicant must be at least 20 years old. A B1 license requires an upgrade from a C1 license. After meeting the corresponding conditions for upgrading to an A2 license, applicants can submit their documents to the traffic management office. Upon passing the physical examination and other reviews, they can enroll in a driving school for training.

4

5

Share

What is the Difference Between CVT and Automatic Transmission?

There are several differences: 1. Literal meaning: A continuously variable transmission (CVT) has no fixed gear ratios, while an automatic transmission controls each gear with a set of clutch plates to achieve shifting. 2. Structural differences: The CVT has a simpler structure than traditional transmissions, with a smaller size. It lacks the multiple gear pairs of manual transmissions or the complex planetary gear sets of automatic transmissions. Instead, it mainly relies on two variable-diameter pulleys to achieve seamless ratio changes. 3. Gear shifting differences: An automatic transmission simply changes the shifting motion of a manual transmission into linear movement, achieving automatic operation in terms of motion direction, but it still shifts gears step by step from low to high speeds. In contrast, a CVT no longer shows visible gear increment or decrement markings, only directional indicators like forward and reverse. CVTs provide smoother performance than automatic transmissions during high-speed overtaking and cornering.

19

4

Share

Can Shampoo Really Be Used to Wash Cars?

Shampoo can temporarily be used as a substitute for car wash soap. The main ingredients of car wash soap are generally similar to those of shampoo. Here is some information about car wash soap: 1. Function: Car wash soap contains natural wax components, which can give the car body a clean and shiny appearance and provide a certain elasticity to the paint surface, preventing minor scratches from small flying sand. Some car waxes also have strong UV resistance, protecting the paint surface from UV damage. 2. Precautions: Avoid washing the car when the engine is not completely cooled down, as this can lead to premature aging of the engine. Also, avoid washing the car under direct sunlight, as this can leave dried water spot marks on the car body.

13

0

Share

How Does a Car Cruise Control System Work?

How Long Does an AT Transmission Last?

What does MPV mean?

Should the G-sensor of the dash cam be turned on?

What types of vehicles can be driven with an A2 driver's license?

What is the Difference Between CVT and Automatic Transmission?

Can Shampoo Really Be Used to Wash Cars?

What are the reasons for the decrease in antifreeze?

What Kind of Oil is Best for Turbocharged Engines?

How to Determine When Engine Oil Needs Replacement?

What is the current vehicle purchase tax rate?