What are the regulations for reflective stickers on trucks?

How long will a vehicle be penalized for overdue inspection?

Exceeding one month constitutes overdue inspection. If the vehicle continues to be driven on the road and is checked by traffic police, points will be deducted and a fine imposed. Below are relevant explanations: 1. Overdue inspection: As the name implies, it refers to exceeding the inspection period. It mainly means that certain certificates or documents requiring periodic inspection were not inspected within the stipulated time limit. Vehicles with overdue inspections have significant safety hazards and must not be driven. 2. Vehicle annual inspection: Vehicle annual inspection refers to a mandatory test for every vehicle that has obtained official license plates and a vehicle registration certificate. It is equivalent to an annual physical examination for the vehicle according to the 'Technical Conditions for Motor Vehicle Operation Safety'.

1

4

Share

What is the function of the antenna at the rear of a car?

The main function of the antenna at the rear of a car is to enhance signal reception. Below are the relevant introductions about car antennas: 1. A car antenna intercepts high-frequency radio waves transmitted by broadcasting stations and transmits them to the car's radio, car phone, or radio navigation equipment receiver, as well as demodulates the carrier wave; 2. Considering the conditions of arbitrary movement of the car, except for devices like ETC used in specific locations, general car antennas should be non-directional. The antenna must have excellent water resistance, shock resistance, corrosion resistance, etc., while also considering safety, wind noise, and the impact on the overall vehicle design.

3

4

Share

Why Do Many Cars Only Have Two Airbags?

Many cars only have two airbags for the following reasons: High cost of airbags: Generally, there is one each in the driver and front passenger positions of the vehicle to protect the front-seat occupants. In the event of a severe collision, they provide protection for the front-seat passengers. This distribution is the most economical but can only protect front-seat passengers in frontal collisions. In cases of side impacts or rollovers, it cannot provide effective protection. Presence of seat belts: Among all the safety configurations in a car, the seat belt is the most effective in protecting occupants. Therefore, most vehicles are equipped with only two airbags, but they still provide a certain level of safety protection.

18

0

Share

What is DCVVT technology?

It is the Dual Continuous Variable Valve Timing technology. DCVVT stands for Dual-Continue-Variable-Valve Timing in English, where D represents dual meaning, C represents continuous meaning, and VVT is the abbreviation for Variable Valve Timing. CVVT is a technology that controls the timing of opening the intake valve through an electro-hydraulic control system, thereby adjusting the required valve overlap angle. This technology delays or advances the opening time of the intake valve based on the engine's operating conditions. Its features include stabilizing combustion, improving engine efficiency, reducing pollutant emissions, and enhancing fuel economy. The engine crankshaft rotates twice while the camshaft rotates once. The rotational motion of the crankshaft directly reflects the up-and-down work of the engine pistons. The camshaft regulates the timing and duration of intake and exhaust. The rotation of the crankshaft and camshaft follows a certain fixed logic, where the opening and closing of the intake and exhaust valves by the camshaft are based on the crankshaft's rotational position. This is called valve timing. Engine: The car engine is the device that provides power to the vehicle, serving as the heart of the car. It determines the vehicle's power, fuel efficiency, stability, and environmental friendliness. Common gasoline and diesel engines are both types of reciprocating piston internal combustion engines. Engine classification: Based on different power sources, car engines can be categorized into diesel engines, gasoline engines, electric vehicle motors, and hybrid engines, among others. Different engine strokes: Intake stroke: At low speeds, the air flow rate is low, so the intake valve should open early, and the exhaust valve should close late. At high speeds, the air flow rate is high, so the intake valve should open late, and the exhaust valve should close early. Compression stroke: At low speeds, the intake valve closes late, and the exhaust valve is closed. At high speeds, the intake valve closes early, and the exhaust valve is closed. Power stroke: At both high and low speeds, the intake and exhaust valves are closed. Exhaust stroke: At low speeds, the exhaust valve opens early, and the intake valve opens early. At high speeds, the exhaust valve closes early, and the intake valve opens late.

12

0

Share

Why Do Small Cars Need to Add Water?

Reasons why small cars need to add water: To dissipate heat generated by the engine: Engines are divided into two types of cooling systems: air-cooled and water-cooled. Air-cooled engines dissipate heat by increasing airflow to cool the engine, while water-cooled engines, which are more common, use the circulation of water in the cooling system to remove heat generated by the engine, ensuring the engine operates at its optimal state. To cool down components: During operation, engines generate high temperatures. If components are not cooled down in time, the engine can eventually be damaged. Therefore, cooling measures are essential, whether through water-cooling or air-cooling. Water-cooling is commonly used in various engines, hence the need to add water, while air-cooling is typically found in motorcycle engines and military engines.

2

0

Share

What is the wading depth of the Volkswagen T-Roc?

The maximum wading depth of the Volkswagen T-Roc is 500mm. The wading depth of the Volkswagen T-Roc is determined by the height of the vehicle's chassis, which is the ground clearance listed in the model's parameter configuration table. Generally, the greater the ground clearance, the higher the chassis, and the higher the safety factor when passing through waterlogged roads. Therefore, in terms of safe wading depth, the advantages of off-road vehicles and SUV models are obvious. However, for most compact and small cars with low chassis, the position of the vehicle's air intake should be used as a benchmark when passing through waterlogged roads. If the air intake of the Volkswagen T-Roc is below the water level when wading, water will be sucked into the engine's cylinders. Since water cannot be compressed like air, it will cause severe damage to the engine's mechanical components (such as connecting rods, pistons, crankshafts, etc.). Therefore, the wading depth should not exceed the height of the engine's air intake. The height of the engine's air intake, and thus the maximum wading depth, can also be increased by installing a snorkel. If wading is unavoidable, the following safe and correct operations should be performed: Before the vehicle enters the water, always turn off the auto start-stop function to prevent the engine from automatically restarting after stalling in the water, which could cause severe damage due to water ingress. Assess the underwater road conditions based on the passage of vehicles ahead and choose an appropriate entry point. Observe the path taken by other vehicles and follow their tracks at a low speed, avoiding sudden acceleration or deceleration. For roads prone to water accumulation, observe warning water level markers, trees, and reference points such as the wheels and doors of other vehicles to estimate the water depth before deciding whether to proceed. Be aware of your vehicle's safe wading depth. If the water depth exceeds half the height of the tires or the engine's air intake, do not enter the water recklessly; consider taking an alternative route instead.

3

4

Share

What are the regulations for reflective stickers on trucks?

How long will a vehicle be penalized for overdue inspection?

What is the function of the antenna at the rear of a car?

Why Do Many Cars Only Have Two Airbags?

What is DCVVT technology?

Why Do Small Cars Need to Add Water?

What is the wading depth of the Volkswagen T-Roc?

Why does the car feel unstable after changing tires?

What to Do When the Remote Key Doesn't Roll Up the Window When Held Down?

What is the function of the Wuling PVC valve?

Should You Still Go for Driving Practice When It Rains?