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Why are new energy vehicles divided into high and low voltage systems?

1 Answers

ParkerLynn

07/29/25 7:07pm

New energy vehicles are divided into high and low voltage systems for the following reasons: The low-voltage system is used for functions such as audio, while the high-voltage battery powers the electric motor for driving. The low-voltage battery is employed to control the computer and electrical components. Overview of New Energy Vehicles: New energy vehicles refer to automobiles that utilize unconventional vehicle fuels as power sources (or use conventional vehicle fuels with new types of onboard power devices), integrating advanced technologies in vehicle power control and driving systems. They represent vehicles with advanced technical principles, incorporating new technologies and innovative structures. Classification of New Energy Vehicles: New energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid electric vehicles, hydrogen engine vehicles, etc. A pure electric vehicle is one that uses a single battery as the energy storage power source.

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Will the car be scrapped if water enters the engine?

If water enters the engine, the car may be scrapped. Here is the relevant information: 1. Do not continue driving: If water enters the cylinder and the owner continues to drive, the final consequence could be the piston seizing in the cylinder, and the connecting rod bending or breaking due to the inability to withstand the immense pressure. In more severe cases, the broken connecting rod may puncture the engine block. 2. Classification: Automotive engines can be categorized into diesel engines, gasoline engines, electric vehicle motors, and hybrid powertrains, among others. The engine is the power source of a car. Most automotive engines are thermal power devices, referred to as heat engines. Heat engines convert the thermal energy generated by fuel combustion into mechanical energy through changes in the state of the working medium.

Should the engine be turned off when refueling the car?

Vehicles must be turned off when refueling. This is because gasoline and its vapors have very low ignition points and flash points, requiring minimal energy to ignite. Below are precautions for car refueling: 1. Refuel promptly: The fuel pump generates heat during operation. Insufficient fuel prevents timely cooling, accelerating wear. It's advisable to refuel when the tank is down to one-quarter. 2. Fuel quality: Always choose reputable gas stations, preferably state-owned ones. 3. Octane rating: Pay attention to the required octane rating, usually indicated on the fuel cap. While a car requiring 95 octane can run on 92, prolonged use may affect performance. 4. Fuel quantity: Avoid overfilling to minimize trips to the station. Stop at the first click of the nozzle, indicating the tank is approximately 80-90% full. This leaves adequate space for fuel vapor expansion.

Can You Switch Between D and M Gears While Driving?

You can switch between D and M gears while driving. Here is a detailed introduction to the M gear in cars: 1. Usage Method: The M gear refers to the manual/automatic transmission gear in modern cars. When the gear lever is shifted into M gear, gear shifting becomes manually controlled by the driver. Near the M gear, there are "+" or "-" symbols, where "+" indicates upshifting and "-" indicates downshifting. Alternatively, gear changes can be made using paddle shifters on the steering wheel. 2. Purpose of M Gear: The M gear is primarily used for driving in more challenging conditions, such as steep slopes, hence also known as the climbing gear. The M gear can also be used for overtaking; engaging the M gear provides greater traction, and after completing the overtaking maneuver, the gear can be shifted back to D.

What Causes the Engine to Shake Every Few Seconds at Idle?

Engine shaking every few seconds at idle is most commonly caused by a misfire. Here are the relevant details: 1. Causes of Misfire: There are many factors that can lead to a misfire. For example, issues with the ignition system—check the condition of the spark plugs, high-voltage wires, and ignition coils. Poor performance of the ignition system or weak sparking from the spark plugs can also cause this type of issue. The solution is to check if the spark plugs have excessive carbon buildup and replace them if necessary. 2. Severe Engine Carbon Buildup: The most common reason for car shaking is a dirty throttle body or excessive carbon buildup in the fuel injectors. When there is too much carbon buildup inside the engine, the gasoline sprayed by the cold-start injectors can be largely absorbed by the carbon deposits, resulting in a lean air-fuel mixture during cold starts and making the engine difficult to start.

Should You Downshift or Upshift When Going Uphill?

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What does a warning light with a circle and six dots indicate?

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