What does Level 2 autonomous driving in cars mean?

Brief Introduction to Common Locations of Vehicle VIN Codes

Automobile VIN codes are most commonly located at the lower left corner of the front windshield. More information about VIN codes is as follows: I. SAE standard (Society of Automotive Engineers) stipulates: VIN codes consist of 17 characters, commonly known as the seventeen-digit code. It contains information such as the vehicle manufacturer, year, model, body type and code, engine code, and assembly location. II. Detailed explanation of VIN codes: Positions 1-3 (WMI): Manufacturer, brand, and type. Positions 4-8 (VDS): Vehicle characteristics. Position 9: Check digit. Position 10: Model year. Position 11: Assembly plant. Positions 12-17: Serial number.

112

Share

Is a tire pressure of 2.3 bar too low?

A tire pressure of 2.3 bar is not too low. According to the international GBT2978-2008 standard, the general standard tire pressure ranges from 240-250 kpa; reinforced tires range from 280-390 kpa; the maximum pressure should not exceed 350 kpa. Hazards of low tire pressure: Increased friction coefficient with the road surface, leading to higher fuel consumption; Causes heavy steering and potential deviation, which are unfavorable for driving safety; Increases movement in various parts of the tire, causing abnormal heating due to excessive rolling; Reduces the functionality of the cord and rubber, leading to delamination or cord breakage, excessive friction with the rim, and damage to the bead area, resulting in abnormal wear; Multiplies the friction between the tire and the ground, sharply increasing tire temperature, softening the tire, and drastically reducing its strength. High-speed driving may cause a blowout; Increases tire deformation, making the sidewalls prone to cracks, and generates flexing motion, leading to excessive heat, rubber aging, cord fatigue, and breakage, while also increasing the tire's contact area and accelerating shoulder wear. Solutions for insufficient tire pressure: If no damage is visible, simply inflate to normal pressure and reset the tire pressure system; If a puncture is found during inspection, drive to a tire shop for repair and reinflation; If the tire pressure warning reappears after inflation but there is no puncture, it may be due to air leakage caused by a deformed rim. It is recommended to inspect and replace the rim.

119

Share

Do Hybrid Cars Not Need Charging?

There are two types of hybrid vehicles. Standard hybrid: charges the battery while driving. Plug-in hybrid: consumes battery power and generally does not require charging. Additional information is as follows: 1. Standard hybrid electric vehicles (HEVs) use part of the engine's power to generate electricity and store it in the battery when the engine is not needed to provide power. The kinetic energy during vehicle deceleration and braking is also converted into electrical energy and stored in the battery. 2. Plug-in hybrid electric vehicles (PHEVs) are a new type of hybrid electric vehicle. Unlike traditional hybrids that combine gasoline power with electric drive, plug-in hybrids share the same driving principles and units as electric vehicles.

104

Share

What to Do When the Steering Wheel Fails While Driving?

Solutions for steering wheel failure while driving: Gently pull the handbrake and lightly apply the brakes. After the car comes to a stop at a constant speed, slowly release the brake pedal. More information on steering wheel failure while driving is as follows: 1. When the speed is high, avoid emergency braking to prevent the car from rolling over. 2. Before the car comes to a complete stop, promptly alert other vehicles and pedestrians to yield: turn on the headlights, honk the horn and make hand signals, and activate the hazard warning lights. 3. When the car is moving at high speed, if there are no obstacles ahead, the driver should first coast, decelerate, and then apply the emergency brake. Avoid coasting in neutral. 4. Causes of steering wheel failure: The steering wheel has been used for too long or twisted too much. It is recommended to replace it at a 4S shop.

114

Share

The Function of Roof Racks?

Roof racks are used for carrying large luggage. More details about roof racks are as follows: 1. The design load capacity of roof racks ranges between 30-50 kg, and they are installed on the top of the vehicle. They are mainly used as support racks or components to safely and conveniently secure luggage, commonly found on SUVs, commercial vehicles, and MPVs. 2. Roof racks are generally used for self-driving travel, allowing you to bring large items such as bicycles and skis for outdoor activities. 3. Some vehicle models do not come with roof racks installed, but they may have pre-installed mounting positions, usually with reserved screws. For vehicles without pre-installed mounting positions for roof racks, it is recommended that owners do not install them privately, as this may damage the roof structure or result in the racks not being securely fastened after installation.

105

Share

Can You Still Drive with 150 kPa Tire Pressure?

Tire pressure of 150 kPa is too low to continue driving. When tire pressure is low, the contact area with the ground increases, generating significantly more heat from rolling compared to standard tire pressure. Hazards of Low Tire Pressure: Increased friction coefficient with the road surface, leading to higher fuel consumption; Causes heavy steering and potential misalignment, compromising driving safety; Increases movement in various parts of the tire, causing abnormal heat due to excessive rolling; Reduces the functionality of the cords and rubber, leading to delamination or cord breakage, and excessive friction with the rim, damaging the tire bead area and causing abnormal wear; Multiplies friction with the ground, rapidly raising tire temperature, softening the tire, and drastically reducing its strength. High-speed driving may result in a blowout; Increases tire body deformation, making the sidewalls prone to cracks, generating flexing motion, leading to excessive heat, accelerating rubber aging, cord fatigue, and breakage, while also enlarging the tire's contact area and accelerating shoulder wear. Solutions for Insufficient Tire Pressure: If no damage is visible, simply inflate to normal pressure and reset the tire pressure system; If a puncture is found during inspection, promptly drive to a tire shop for repair and reinflation; If the tire pressure warning reappears after inflation without any puncture, it may indicate air leakage due to a deformed wheel rim. Check the rim and replace if necessary.

120

Share