What are the tips for continuous turns in Subject 2?

What is a Shelby car?

Shelby is a Cobra sports car, a concept vehicle developed by British engineer Shelby in the 1960s. Here are some relevant details about the Cobra sports car: 1. Powertrain: The engine utilizes a Roots-type supercharger to provide 0.6 kg/cm² of boost pressure for forced induction. The Shelby-GT500 features a cast-iron cylinder block. It borrows four-valve aluminum cylinder heads, piston rings, and bearings from the Ford GT project, giving the powertrain high-level performance durability. 2. Exterior and Interior: The aggressive front-end design includes large upper and lower grille openings, featuring a functional air splitter. The famous Cobra emblem floats prominently in the center of the upper intake, replacing the pony logo found on other Mustang models. The slanted headlight openings on both sides further enhance the stunning appearance of the front end.

19

5

Share

How to Check the Vehicle Annual Inspection Date?

To check the vehicle annual inspection date, mainly refer to the following three sources: 1. Vehicle License: Look at the vehicle license, the registration date at the bottom of the original copy indicates the month for the annual inspection, with the deadline being the last day of that month. The duplicate copy also prints a line stating 'Inspection valid until XXXX/XX', allowing for an early inspection up to 3 months in advance (including the inspection month). 2. Annual Inspection Sticker: On the white side of the annual inspection sticker, it prints 'Inspection valid until XXXX/XX', which indicates the deadline month for the inspection, also permitting an early inspection up to 3 months in advance. 3. Compulsory Insurance Policy: The compulsory insurance policy lists the vehicle's registration date, and the month of the registration date is the month when the vehicle requires an annual inspection.

14

2

Share

Do Newly Replaced Tubeless Tires Require Tire Sealant?

Generally, newly replaced tubeless tires do not require tire sealant if the installation is done correctly. Tire sealant is primarily used as a temporary fix after a tire puncture. Introduction to Tubeless Tires: Tubeless tires, also known as "low-pressure tires" or "pneumatic tires," are inflatable tires without an inner tube. They feature high elasticity, wear resistance, excellent traction, and heat dissipation performance. They are increasingly used in bicycles, motorcycles, cars, buses, and trucks. Introduction to Tire Sealant: Tire sealant is a mixture containing various high-molecular chemical materials, widely suitable for rubber tires on electric vehicles, motorcycles, and small to medium-sized cars. It is particularly effective for punctures with diameters of about 1 to 5 millimeters and is an essential item to carry in the vehicle.

8

3

Share

What is the charging principle of lithium batteries?

The charging of lithium batteries is based on their structural characteristics. Below is relevant information about lithium batteries: 1. Discharging of lithium batteries: Due to the internal structure of lithium batteries, during discharge, not all lithium ions can move to the positive electrode. Some lithium ions must remain in the negative electrode to ensure smooth embedding channels for lithium ions during the next charge. Otherwise, the battery's lifespan will be shortened accordingly. To ensure that some lithium ions remain in the graphite layer after discharge, the discharge termination minimum voltage must be strictly limited, meaning lithium batteries cannot be over-discharged. The discharge termination voltage is typically 3.0V per cell and should not be lower than 2.5V per cell. The duration of battery discharge depends on the battery capacity and the discharge current. Battery discharge time (hours) = battery capacity / discharge current. The discharge current (mA) of a lithium battery should not exceed three times the battery capacity (e.g., for a 1000mAH battery, the discharge current should be strictly controlled within 3A). Otherwise, the battery may be damaged. 2. Protection circuit of lithium batteries: It consists of two field-effect transistors and a dedicated protection integrated block S--8232. The overcharge control transistor FET2 and the over-discharge control transistor FET1 are connected in series in the circuit. The protection IC monitors the battery voltage and controls it. When the battery voltage rises to 4.2V, the overcharge protection transistor FET1 cuts off, stopping the charge. To prevent false triggering, a delay capacitor is usually added to the external circuit. When the battery is in a discharged state and the voltage drops to 2.55V, the over-discharge control transistor FET1 cuts off, stopping power supply to the load. Overcurrent protection occurs when a large current flows through the load, controlling FET1 to cut off and stop discharging to the load, aiming to protect the battery and the field-effect transistors.

2

3

Share

What does engine ECT mean?

The ECT in a car is the transmission electronic control mode switch, which can quickly increase the engine speed, but fuel consumption will increase significantly. It is mostly used on highways. The working condition of ECT is as follows: After activation, the throttle will feel more responsive and direct, and the shift timing is generally above 4500 RPM. When the ECT switch is turned off, the transmission will switch to economy mode, where the transmission's shift logic will determine the shift timing based on the actual road conditions and the driver's intention. Correct usage of the ECT switch: When the ECT switch is pressed while the car is moving, the car can automatically downshift. For example, when going downhill, the car's speed may become too fast, and frequent braking may cause faults in the braking system, leading to wear on the brake discs and pads. Pressing this button will make the car automatically downshift and drive at a lower speed. When activated, green English letters will light up on the dashboard, and the transmission will delay shifting, which helps maintain the RPM. This mode will have a certain impact on the car's fuel consumption and may lead to increased fuel usage.

4

3

Share

Is a Steering Wheel Cover Necessary for a New Car?

Whether a new car needs a steering wheel cover depends on the material of the steering wheel and the frequency of vehicle use. Material of the Steering Wheel: If the car's steering wheel is made of hard plastic, it is necessary to install a steering wheel cover. If the steering wheel is made of soft rubber, you can choose to install one or not. Vehicle Usage: If the car is used frequently, installing a steering wheel cover is advisable to protect the wheel from wear and tear. If the car is not used often, the installation is optional. Introduction to Steering Wheels: The main functions of a steering wheel cover are to prevent slipping and wear. Most high-end cars now come with redesigned steering wheels that are pre-wrapped with materials like faux leather, genuine leather, or other materials. Therefore, whether to install a steering wheel cover depends on the original material and design of the steering wheel.

15

2

Share

What are the tips for continuous turns in Subject 2?

What is a Shelby car?

How to Check the Vehicle Annual Inspection Date?

Do Newly Replaced Tubeless Tires Require Tire Sealant?

What is the charging principle of lithium batteries?

What does engine ECT mean?

Is a Steering Wheel Cover Necessary for a New Car?

Where is the Tire Pressure Monitoring Reset Button?

The Real Cause of Engine Knocking?

What to Do When Car Tires Are Underinflated?

Can You Make a U-Turn at an Intersection Where Left Turns Are Prohibited?