What is the issue with the DC-DC failure in new energy vehicles?

What are the differences between steel wheels and aluminum wheels?

The differences between steel wheels and aluminum wheels are as follows: 1. Material: Steel wheels have good toughness but poor hardness, while aluminum alloy wheels are the opposite, with good hardness but poor toughness. Due to the manufacturing materials and processes, steel wheels have poor stability at high speeds, whereas aluminum alloy wheels perform well in terms of stability at high speeds. Additionally, aluminum alloy wheels excel in acceleration and heat dissipation. 2. Usage: Although aluminum alloy wheels outperform steel wheels in overall performance, their cost is relatively higher. Replacing a set of standard aluminum alloy wheels can cost thousands of yuan. Moreover, the maintenance of aluminum alloy wheels is more complicated compared to steel wheels. Steel wheels usually come with plastic wheel covers. There are many stylish wheel covers available on the market, and if matched appropriately, they can achieve a similar aesthetic effect as aluminum alloy wheels.

12

3

Share

When reversing, if the steering wheel is turned to the right, does the rear of the car also move to the right?

When reversing, turning the steering wheel to the right will cause the rear of the car to move to the right, and turning it to the left will cause the rear to move to the left. If moving forward, the opposite is true: turning the steering wheel to the left while moving forward will cause the rear of the car to move to the right, and turning it to the right will cause the rear to move to the left. When entering a parking lot to park, first assess the width of the parking space, check for any obstacles behind, whether there are cars parked on either side, and whether the length is suitable for your vehicle. If visibility is poor at night, step out to observe the exact position before reversing. Whenever possible, choose to reverse from the left side (if conditions permit). The left side makes it easier for the driver to observe. During the reversing process, first look behind, then pay attention to the side mirrors. The horizontal distance on the right side should be slightly larger than on the left. Be mindful of both the front and rear when reversing. When reversing into a parking space, situations may arise where, due to limited surrounding space and the addition of steering while reversing, the driver focuses solely on the rear of the car and neglects the front, leading to side scrapes on the front of the car. This happens because, during the turning process, the turning radius of the front wheels is larger than that of the rear wheels. As a result, when reversing, the front of the car swings outward, causing side scrapes on the front. Therefore, when reversing, it is essential to be aware of both the front and rear, ensuring full attention to both ends.

20

1

Share

How to Transfer a Driver's License Exam to Another Location?

Here are the relevant steps for the process: 1. Complete the transfer procedures: Bring your ID card to the driving school to complete the transfer procedures, obtain a transfer certificate, and receive a refund of fees. 2. Electronic records: Retrieve your electronic records from the vehicle management office or driving school. 3. Transfer certificate: Contact a driving school in your current place of residence, and report with your ID card, electronic records, and transfer certificate. 4. Complete electronic transfer: After reporting, bring your electronic records and ID card to the vehicle management office in your current place of residence to complete the electronic transfer. 5. Begin practice at the driving school: Once the transfer is successful, you can start practicing and taking exams at the driving school in your current place of residence.

5

Share

How to Conduct Annual Inspection for a 9-Year-Old Car?

A 9-year-old vehicle needs to submit the compulsory traffic accident liability insurance certificate, vehicle and vessel tax payment or tax exemption proof, and motor vehicle safety technical inspection certificate to obtain the motor vehicle inspection qualification mark. Before the inspection, staff will conduct a preliminary check, mainly verifying whether the engine number matches the vehicle registration certificate, briefly inspecting the appearance and condition of the car, and then filling out an exhaust emission test form. Below is relevant information about the annual inspection: 1. Introduction: Vehicle annual inspection refers to a mandatory test for every vehicle that has obtained an official license plate and registration certificate, equivalent to an annual physical examination for the vehicle according to the "Technical Conditions for Motor Vehicle Operation Safety." Vehicle annual inspections can promptly eliminate potential safety hazards, encourage enhanced vehicle maintenance, and reduce the occurrence of traffic accidents. 2. Best Time for Annual Inspection: Vehicles can apply for annual inspection within 3 months before the inspection date. It is best to apply two months or more than one month in advance. Additionally, before the 10th of each month, inspection stations have relatively fewer workloads, making it an ideal time to avoid queues. The number of vehicles starts to increase in the middle of the month, and the end of the month is the peak period.

20

3

Share

Can motorcycles ride on non-motorized lanes?

No. Motorcycles should use motor vehicle lanes. Here are the riding methods for motorcycles: Below is a relevant introduction to motorcycle riding methods: 1. Method one: Always ride in designated lanes, which can improve safety, avoid traffic congestion, and prevent traffic accidents. 2. Method two: When riding a motorcycle, you should wear a helmet and professional riding gear or protective equipment to enhance safety and protect personal safety. 3. Method three: Never exceed the speed limit when riding a motorcycle, as speeding is very dangerous; pay attention to personal safety.

6

3

Share

What Are the Oil Specifications?

Automotive engine lubricating oils are divided into two categories: S (gasoline engine oil) and C (diesel engine oil), with the following specifications: 1. Gasoline Engine Oil (S) Specifications: These are SA, SB, SC, SD, SE, SF, SG, SH, SJ, and SL. The SI specification is omitted to avoid confusion with the International System of Units abbreviation. 2. Diesel Engine Oil (C) Specifications: These are CA, CB, CC, CD, CD-II, CE, CF, CF-2, CF-4, CG-4, and CH-4. Among these, CD-II and CF-2 are for two-stroke diesel engines. The performance of CF and CD is similar, but CF has stricter engine testing requirements and a broader application range.

11

1

Share

What is the issue with the DC-DC failure in new energy vehicles?

What are the differences between steel wheels and aluminum wheels?

When reversing, if the steering wheel is turned to the right, does the rear of the car also move to the right?

How to Transfer a Driver's License Exam to Another Location?

How to Conduct Annual Inspection for a 9-Year-Old Car?

Can motorcycles ride on non-motorized lanes?

What Are the Oil Specifications?

How to deal with speeding less than 10%?

Is 30,000 kilometers a major or minor maintenance?

How to Register a Motorcycle in Guangzhou?

What is the Difference Between 4-Door 5-Seater and 5-Door 5-Seater?