How Does the Car Rearview Camera System Work?

What does DRL mean?

DRL stands for Daytime Running Lights. Its primary function is not to help drivers see the road, but to enhance the visibility of the vehicle in poor daytime driving conditions, allowing pedestrians, other vehicles, and drivers to detect and recognize each other earlier and more effectively, thereby preventing accidents in advance and ensuring driving safety. Features of DRL: DRL lights are a new type of green light source that does not contain heavy metals such as mercury. They are pollution-free, noiseless, free from electronic interference, energy-efficient, environmentally friendly, aesthetically pleasing, and safe and reliable. Additionally, the entire set of daytime running lights uses LED light sources, which have low energy consumption—only 15% of that of conventional car lights. Usage of DRL: When the car engine starts, the LED daytime running lights automatically turn on and gradually increase in brightness to attract the attention of other motor vehicles, non-motorized vehicles, and pedestrians on the road. When night falls and the driver manually turns on the low-beam headlights, the LED daytime running lights automatically turn off.

15

5

Share

What is the COS car?

Cos is a mid-to-large-sized SUV produced by Changan Automobile, with the full name Changan Oshan Cos. Currently available models include 5-seater, 6-seater, and 7-seater versions. Exterior: The Changan Oshan Cos features a unique body color and a front grille design. The interior is wrapped in soft materials and equipped with an ergonomic dynamic cockpit, 8-way power-adjustable seats, and a 10-speaker surround sound system. Space: The Changan Oshan Cos measures 4830-1868-1775mm in length, width, and height, with a wheelbase of 2800mm. The front seats support 8-way power adjustment, while the second-row seats can slide forward and backward and, like the third-row seats, can be completely folded flat. Performance: The Changan Oshan Cos is equipped with an Aisin third-generation 6AT automatic transmission and a 1.5L turbocharged engine, delivering a maximum total power of 31KW, a maximum torque of 265N.m, and a maximum power speed of 4000rpm.

4

2

Share

What Does Car Horsepower Mean?

Car horsepower refers to the unit of engine power, representing the engine's ability to perform work per unit of time. It is a unit used to measure the performance of a car engine and an important parameter for evaluating a vehicle's overall performance. Car horsepower is generally related to the following four factors: 1. Displacement: The volume of gas expelled by the engine in one revolution. It can roughly be understood as the cylinder volume multiplied by the number of cylinders. Generally, the larger the displacement, the higher the fuel consumption and the greater the horsepower. 2. Compression ratio: The volume at the bottom dead center of the cylinder divided by the volume at the top dead center. According to the ideal gas law, a higher compression ratio results in greater horsepower without increasing fuel consumption. However, it requires the use of gasoline with better anti-knock properties, i.e., higher-octane gasoline. While fuel consumption does not increase, the cost of fuel is higher. 3. Turbocharging: Increases the intake pressure, thereby boosting the engine's maximum power. This feature is not commonly found in most vehicles. 4. Afterburner system: Typically found in aircraft, commonly using methods like water injection or MW50 (water + methanol). For cars, it seems only NO afterburners are used, but these are only found in very high-end sports cars.

1

0

Share

Can a Class C Driver's License Drive a 4.2-Meter Vehicle?

Drivers with a Class C driver's license can operate a 4.2-meter truck, which falls within the permissible driving scope of a Class C license. Permissible driving scope of a C1 license: The C1 license allows the operation of small and mini passenger vehicles, as well as light and mini cargo vehicles; light, small, and mini special-purpose vehicles; small passenger vehicles with a seating capacity of 9 or fewer people. The C1 license does not permit driving vehicles with more than 9 seats. The permissible vehicle types for a C1 license include trucks with a maximum body length of less than 6 meters and a total weight of less than 4,500 kg. Permissible driving scope of a C2 license: The C2 license allows the operation of small and mini automatic transmission passenger vehicles, as well as light and mini automatic transmission cargo vehicles; it only permits driving automatic transmission vehicles with 9 or fewer seats and a length not exceeding 6 meters. Permissible driving scope of a C3 license: The C3 license permits the operation of low-speed cargo vehicles.

4

Share

Do All Four Ignition Coils Need to Be Replaced Together?

If only one or two ignition coils are faulty while the others remain unaffected, are in good working condition, and have a service life of less than 100,000 kilometers, it is not necessary to replace all of them. However, if the mileage exceeds 100,000 kilometers, it is advisable to replace all the ignition coils together. Here is some information about ignition coils: 1. The core components of the ignition system are the ignition coil and the switching device. Increasing the energy of the ignition coil allows the spark plug to generate a sufficiently energetic spark, which is a fundamental requirement for the ignition system to adapt to the operation of modern engines. 2. A typical ignition coil contains two sets of windings: the primary coil and the secondary coil. The primary coil is wound with thicker enameled wire, usually around 0.5-1 mm in diameter, with approximately 200-500 turns. The secondary coil is wound with finer enameled wire, typically around 0.1 mm in diameter, with approximately 15,000-25,000 turns. 3. Ignition coils are categorized into open-core and closed-core types based on their magnetic circuits. Traditional ignition coils use an open-core design, with the core made of stacked silicon steel sheets about 0.3 mm thick, around which the primary and secondary coils are wound. Closed-core ignition coils use an I-shaped core for the primary winding, around which the secondary coil is wound, forming a closed magnetic circuit with the core.

18

5

Share

What does the yellow exclamation mark on the Corolla dashboard mean?

There are four possible scenarios when a yellow exclamation mark appears on the car dashboard: general malfunction, automatic transmission failure, abnormal tire pressure, and lighting system failure. Below is a detailed analysis of these four situations: General malfunction: A triangle with an exclamation mark inside indicates a general performance or component/function failure in the vehicle. Common causes include parking sensor failure, fuel cutoff system intervention or malfunction, exterior light failure, or engine oil pressure sensor malfunction. It is recommended to visit a 4S shop for diagnosis and repair to identify the source of the problem. Automatic transmission failure: A yellow gear symbol with an exclamation mark inside is the automatic transmission warning light, indicating a transmission malfunction or that the transmission fluid level is below the normal range. The transmission fluid should be replaced promptly. Abnormal tire pressure: An exclamation mark inside a horizontal line under parentheses represents the tire pressure monitoring warning light. This light illuminates when the tire pressure is too low. Check the tire pressure and restore it to the normal range. Lighting system failure: A yellow bulb with an exclamation mark is the lighting failure indicator, signaling that a vehicle light has malfunctioned. Solution: Visit a 4S shop for inspection as soon as possible, or conduct a self-check focusing on commonly used bulbs such as turn signals, fog lights, and interior lights to identify the issue. Additionally, a red exclamation mark inside a circle with parentheses indicates a braking system warning, typically signaling a braking system malfunction or low brake fluid level. Immediate inspection and repair of the braking system are required to prevent accidents.

12

2

Share

How Does the Car Rearview Camera System Work?

What does DRL mean?

What is the COS car?

What Does Car Horsepower Mean?

Can a Class C Driver's License Drive a 4.2-Meter Vehicle?

Do All Four Ignition Coils Need to Be Replaced Together?

What does the yellow exclamation mark on the Corolla dashboard mean?

Why does the car still roll when the handbrake is engaged?

How to Turn on the Fog Lights on the Lavida Plus?

Why is the sound so loud in M mode?

What grade is CK engine oil?