What to Pay Attention to When Driving at Night

Should the Air Brake Not Be Continuously Pressed?

Air brakes should not be continuously pressed because doing so will deplete the air in the air tank, leading to a loss of braking capability. It also increases the workload of the engine, causing engine vibration. Reasons why air brakes should not be continuously pressed: The principle of air brakes involves using compressed air from the storage tank to inflate the brake chamber, which pushes the brake shoes to achieve braking. Continuously pressing the brake pedal will reduce the air pressure in the tank, eventually leading to insufficient pressure and an inability to brake properly. Additionally, truck brakes are crucial for safety, which is why most truck drivers ensure the air pressure in the air brake system reaches 5-6 Bar before setting off. Consequences of continuously pressing the air brake: Air brakes use a cylinder regulator valve to create resistance against the engine's operation, thereby reducing engine speed and slowing the vehicle. Keeping the exhaust brake engaged for prolonged periods increases the engine's workload, resulting in engine vibration. In severe cases, it can cause the cylinder regulator valve to be forced open and damaged. How the spring brake (parking brake) works: The air pump, driven by the engine, compresses air into high-pressure gas stored in the air tank. One air tank is connected to the brake master cylinder via pipelines. When the driver presses the brake pedal, the upper air circuit opens first, and high-pressure gas from the air tank is transmitted to the relay valve.

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What to do if the driver's license renewal has expired?

Solution for expired driver's license renewal: The motor vehicle driver should bring the required materials to the vehicle management office where the driver's license was originally issued to apply for renewal. The vehicle management office will process the renewal within one working day after approval. Required materials for renewal include two copies of ID card, two recent 1-inch color photos without hats, original ID card, original driver's license, and a medical examination certificate from a county-level or above hospital. Renewal and inspection must meet the following conditions: Holders of large passenger vehicle, tractor, city bus, medium-sized passenger vehicle, or large truck driver's licenses must have no demerit points in the current scoring cycle, or holders of other types of driver's licenses must have less than 12 demerit points in the current scoring cycle; Holders of large passenger vehicle, tractor, city bus, medium-sized passenger vehicle, or large truck driver's licenses who have demerit points in the current scoring cycle, as well as holders of other types of driver's licenses who have been involved in a traffic accident resulting in death with equal or greater responsibility but have not had their driver's license revoked, must have completed the inspection education; The applicant must have no pending road traffic safety violations or traffic accidents; The applicant's physical condition must meet the driving license requirements; The driver's license must not be seized, detained, temporarily suspended, revoked, canceled, or withdrawn by law.

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What are the impacts of a car without a catalytic converter?

A car without a catalytic converter will cause air pollution. Additional information is as follows: 1. Vehicle exhaust: The three harmful gases in vehicle exhaust have extremely slow chemical reaction rates with each other without a catalytic converter, and some reactions cannot even occur. 2. Catalytic converter: There are no moving parts inside, and all cleaning operations are completed through ingenious chemical reactions. The interior of the catalytic converter consists of a thick substrate with a fine grid-like cross-section, coated with precious metals such as platinum, palladium, and rhodium. 3. How a catalytic converter works: The precious metals act as catalysts in the actual reactions. Whether they are emissions, gasoline, diesel, or engine oil, they can react with these precious metals and quickly transform into less harmful substances primarily composed of nitrogen, carbon dioxide, and water.

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Is the new small sedan exempt from inspection for six years?

New small sedans are exempt from inspection for six years. Additional information is as follows: 1. Small sedans are exempt from inspection for the first six years: This means that within six years, there is no need for an on-site inspection. This policy only applies to private passenger vehicles with 5 seats or fewer. 2. Collect the annual inspection sticker every two years during the exemption period: Every two years, the vehicle owner must personally go to the vehicle management office to collect the annual inspection sticker. Bring your ID card, vehicle registration certificate, and valid compulsory traffic insurance policy to apply for a new annual inspection sticker. Starting from the seventh year, an annual on-site inspection is required, and the annual inspection sticker must be collected every year. 3. Scope of vehicles "exempt from inspection for six years": 1. The scope of exempt vehicles includes non-commercial sedans (including large sedans) registered within six years, other small and mini passenger vehicles, and motorcycles. 2. Excluded are vans and vehicles with more than 9 seats (>9 seats).

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Is the Driving Resistance Greater or Smaller on Downhill Sections?

Driving resistance on downhill sections is smaller compared to flat sections. On downhill sections, due to the effect of gravity, the driving resistance is reduced, making it easier for the vehicle to speed up and harder to control compared to driving on flat terrain. Increased driving resistance manifests as insufficient power during driving, a mismatch between speed and gear, increased fuel consumption, and poorer coasting performance when the vehicle is in neutral on straight roads. Reasons for increased driving resistance include: 1. Faults in the vehicle's transmission system: Poor lubrication, insufficient, deteriorated, or overly viscous lubricants in the drive axle's main reducer, differential, or transmission can increase driving resistance; improper assembly or adjustment of the drive axle's main reducer and transmission, overly tight bearing assembly, improper driveshaft assembly, overly tight or poorly lubricated universal joint bearings, or lack of oil; excessively small gear meshing clearance in the transmission increases transmission resistance, deformation of the drive axle housing, bending deformation of the half-shaft, and friction between the half-shaft and the half-shaft sleeve can all contribute to increased driving resistance. 2. Faults in the vehicle's driving system: Deformation or displacement of the front axle or drive axle can increase driving resistance; poor lubrication, deteriorated or insufficient lubricants in the wheel hub bearings, insufficient tire pressure, and deformation of the vehicle frame can all lead to increased driving resistance. 3. Overloading the vehicle, poor road conditions, and driving against the wind can also cause increased driving resistance.

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What does ST on tires stand for?

Tire ST refers to trailer tires. Additional information: 1. Trailer tires do not refer to truck trailers, but rather to the practice in European and American countries where private cars often tow an additional vehicle for transporting goods or travel purposes. The ST designation before the tire indicates this type of tire. ST can be considered as an abbreviation for sport-trailer. 2. Pneumatic tires can be further divided into two types based on their construction: tube tires and tubeless tires. Passenger cars commonly use tubeless tires. Based on the arrangement of internal cord layers and cushion layers, tires can also be classified as radial tires or bias-ply tires. Radial tires are widely used in automobiles. 3. Automotive tires can be categorized into pneumatic tires and solid tires based on their carcass structure. Modern vehicles predominantly use pneumatic tires. According to internal air pressure levels, pneumatic tires can be divided into three types: high-pressure tires, low-pressure tires, and ultra-low-pressure tires. Low-pressure tires are commonly used in various vehicles. Pneumatic tires can also be classified into tube tires and tubeless tires based on their construction.

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What to Pay Attention to When Driving at Night

Should the Air Brake Not Be Continuously Pressed?

What to do if the driver's license renewal has expired?

What are the impacts of a car without a catalytic converter?

Is the new small sedan exempt from inspection for six years?

Is the Driving Resistance Greater or Smaller on Downhill Sections?

What does ST on tires stand for?

How Does an Automotive Ignition System Work?

What Causes the Rattling Noise in the Tiggo 8's Dashboard?

What Causes the Noise in Car Fan Blades?

How much over the speed limit is driving at 170 in a 120 zone?