What is the principle of electric car windows?

1 Answers
EllieRose
07/29/25 5:48pm
The principle of electric car windows: The window lifters in cars use very flexible linkages to lift the window glass while keeping it in a horizontal state. A small motor is connected to a worm gear and several other spur gears to generate a large gear reduction ratio, thereby providing sufficient torque to lift the window. Electric windows are devices that use the vehicle's power supply to drive the window lift motor, causing the lift mechanism to move up and down, which in turn moves the window glass up and down, achieving the purpose of automatic window opening and closing. Electric windows allow the driver or passengers to sit in their seats and use a switch to automatically raise or lower the door glass, making operation simple and contributing to driving safety. They have become the preferred choice for window design by various automakers.
Was this review help?
20
0
Share
More Forum Discussions

How to Determine if the Charcoal Canister is Clogged?

Methods to determine if the charcoal canister is clogged include: 1. The engine stalls due to the ventilation port of the charcoal canister being blocked by foreign objects; 2. Symptoms such as poor acceleration, jerking, and unstable or fluctuating idle speed; 3. The presence of gasoline vapor or dripping fuel at the atmospheric vent of the charcoal canister indicates damage to the canister. If unsure, it is advisable to seek professional repair services. The charcoal canister is designed to store fuel vapors and contains activated carbon particles inside to absorb these vapors, preventing them from being released into the environment when the fuel tank vents. Over time, clogging may occur, which can affect the normal operation of the vehicle.
13
3
Share

How often do small cars undergo inspection and testing?

Small cars require inspection every 6 years. Within the first 6 years, they need to be inspected every 2 years, with an on-road test required in the sixth year. The on-road test involves checking 9 items of the vehicle, including exhaust emissions, side slip, speedometer, axle weight, lights, noise, chassis, and brakes. Vehicles that undergo inspection every 2 years within the first 6 years do not require an on-road test. Vehicle annual inspection refers to a mandatory test for all vehicles that have obtained official license plates and registration certificates, equivalent to an annual health check for the vehicle according to the safety technical conditions for motor vehicle operation. Vehicle annual inspections help promptly eliminate potential safety hazards, encourage better maintenance, and reduce the occurrence of traffic accidents.
7
0
Share

Can I Use Someone Else's Driver's License for Deducting Points?

Deducting points cannot be done using someone else's driver's license. The original license, the license holder's presence, their signature, and the presentation of an ID card are required. According to regulations, if someone accepts traffic violation penalties and point deductions on behalf of the actual driver for economic gain, they will face a six-month suspension of their motor vehicle driver's license and a fine. A driver's license, also known as a 'driving permit,' is a document issued by the government's transportation department to individuals qualified to drive. It is typically a card. To obtain a driver's license, one must meet the age requirement and pass a driving test. Driving a motor vehicle requires certain driving skills. Without these skills, driving a motor vehicle recklessly may lead to traffic accidents. Generally, individuals without a license are not allowed to drive on the road.
15
4
Share

Is the Vehicle Management Office Closed During National Day?

The Vehicle Management Office is closed during the National Day holiday, and no procedures can be processed during this period. The Vehicle Management Office is primarily responsible for handling motor vehicle registration, modification, transfer, mortgage, and deregistration. It also processes applications for motor vehicle driver's licenses, replacements, renewals, inspections, and other related services for vehicles and drivers. The documents required for vehicle inspection at the Vehicle Management Office include: 1. Original and copy of the vehicle tax; 2. ID card of the vehicle owner or agent; 3. Vehicle registration certificate; 4. Vehicle insurance documents; 5. Application for out-of-town annual inspection (if applicable). Vehicle inspection, also known as annual inspection, is a yearly check on the condition and performance of the vehicle conducted by the traffic police department. New vehicles are inspected every two years.
6
1
Share

What are the traffic restrictions for out-of-town vehicles in Shanghai?

Shanghai traffic restrictions for out-of-town vehicles: 1. Restricted hours: Starting from November 2, 2020, the restricted hours are adjusted to 7:00-20:00 daily, totaling 13 hours; 2. Restricted vehicles: The passage of small passenger cars with non-Shanghai license plates, small passenger cars with temporary license plates, unoccupied rental small passenger cars, and small passenger cars driven by drivers in the probationary period is prohibited. Starting from the first working day after the 2021 May Day holiday, small passenger cars with non-Shanghai license plates are prohibited from driving on the inner ring ground roads (excluding boundary roads) from 7:00-10:00 and 16:00-19:00 daily (except Saturdays, Sundays, and public holidays). The Municipal Public Security Bureau will issue a separate notice at that time.
15
1
Share

What are the penalties for not having a Beijing Entry Permit?

If caught entering Beijing without a Beijing Entry Permit, drivers will face a fine and 3 penalty points on their license. The same vehicle will not be penalized again within four hours. However, if the vehicle remains within the 6th Ring Road after four hours, the same penalties will apply again, and this cycle continues. According to regulations, applying for a Beijing Entry Permit requires a driver's license, vehicle registration certificate, ID card, compulsory traffic insurance policy, and a valid vehicle inspection sticker. In practice, only the driver's license, vehicle registration certificate, and ID card are needed. The driver's license and ID card must belong to the same person (who may not be the vehicle owner), and the ID card holder must apply in person. The Beijing Entry Permit is a temporary document required for non-local vehicles entering within Beijing's 5th Ring Road, with validity periods of either 7 days (temporary) or 6 months (long-term).
13
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.