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What is the function of the car ABS system?

1 Answers

DelBrantley

07/25/25 9:34am

ABS system functions: Maximize the effectiveness of the brakes, reducing braking time and distance. Effectively prevent vehicle skidding and fishtailing during emergency braking, ensuring good driving stability. Allow steering during emergency braking, providing good steering control. Avoid severe friction between the tires and the ground, reducing tire wear. Classification of ABS: ABS is mainly classified by channels. In ABS, the brake pipelines that can independently adjust brake pressure are called control channels. ABS control channels are divided into four-channel, three-channel, two-channel, and single-channel types. Single-channel ABS: Also known as one-channel ABS, it has a brake pressure regulator installed in the rear wheel brake main pipe and a wheel speed sensor on the rear axle differential (sometimes one on each rear wheel). Two-channel ABS: This type of ABS struggles to balance directional stability, steering control, and braking efficiency, and is rarely used today. Three-channel ABS: Independently controls the two front wheels, while the two rear wheels are controlled together based on the low-select principle (i.e., both wheels are controlled by one channel to ensure the wheel with less traction does not lock), also known as hybrid control. Four-channel ABS: Equipped with four wheel speed sensors, each wheel's brake cylinder pipeline has a separate brake pressure regulator for independent control, forming a four-channel control system.

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What is the difference between National 4 and National 5 emission standards for vehicles?

The difference between National 4 and National 5 emission standards for vehicles lies in the different upper limits of sulfur content in gasoline: the National 4 standard sets the upper limit of sulfur content at 50mg per kg, while the National 5 standard reduces it to 10mg per kg. Additionally, National 5 introduces standards for particulate matter particle count (PN) and non-methane hydrocarbons (NMHC). National 4 and National 5 refer to different stages of emission standards set by the national government, where higher numbers indicate stricter standards, leading to lower engine emissions. The National 4 emission standard is the fourth stage of motor vehicle pollutant emission standards in China, while the National 5 emission standard is the fifth stage.

What are the differences between China 6 and China 5 vehicles?

The differences between China 5 and China 6 vehicles are: 1. Different emission limits: The China 6a standard requires a carbon monoxide limit of 700 milligrams per kilometer, while the China 6b standard is only 500 milligrams per kilometer; the China 5 standard requires a carbon monoxide limit of 1000 milligrams per kilometer. 2. Different release dates: The China 6 standard was released on June 22, 2018; the China 5 standard was released on September 17, 2013. 3. Different issuing departments: The China 6 standard was issued by the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection and Quarantine; the China 5 standard was issued by the Ministry of Environmental Protection. 4. Different requirements: China 6 adopts a fuel-neutral principle, meaning that regardless of the fuel type, the emission limits are the same; China 5 had different emission standards for diesel and gasoline vehicles during the original China 5 phase.

What are the differences between National 5 and National 6 vehicles?

The differences between National 5 and National 6 vehicles are: 1. Different emission limits: The National 5 standard sets the carbon monoxide limit at 1000 milligrams per kilometer; the National 6a standard requires a carbon monoxide limit of 700 milligrams per kilometer, while the National 6b standard is only 500 milligrams per kilometer. 2. Different release dates: The National 5 standard was released on September 17, 2013; the National 6 standard was released on June 22, 2018. 3. Different issuing departments: The National 5 standard was issued by the Ministry of Environmental Protection; the National 6 standard was issued by the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection and Quarantine. 4. Different requirements: During the National 5 phase, diesel and gasoline vehicles had different emission standards; National 6 adopts a fuel-neutral principle, meaning the emission limits are the same regardless of the fuel type.

What to Do When the Car Warning Light Comes On?

When the car warning light comes on, you need to go to a 4S shop or a professional repair facility to read the fault code and check the specific cause and location of the fault. Car warning lights are divided into: 1. Engine malfunction indicator light: used to display the working condition of the vehicle engine; 2. Oil indicator light: used to show the oil pressure during engine operation; 3. Water temperature indicator light: used to show the circulating temperature of the coolant in the vehicle engine; 4. ABS indicator light: used to display the operating status of the anti-lock braking system; 5. Airbag indicator light: used to show the operating status of the airbag; 6. Fuel indicator light: used to remind the vehicle driver to refuel the vehicle in time.

Where to Check National V or National VI on a Vehicle?

Methods to check whether a vehicle is National V or National VI: 1. Refer to the relevant information on the conformity certificate; 2. Look at the environmental protection label affixed to the upper right side of the vehicle's front windshield; 3. Carefully check the vehicle conformity certificate. The difference between National V and National VI vehicles lies in the fact that National VI vehicles use a three-way catalytic converter, allowing the engine's exhaust emissions to meet the National VI standard, while the engine and the vehicle itself remain the same. The national requirement is that all new vehicles sold must comply with the National V emission standard to be registered and sold. The National V emission standard is marked with a 'V', and the National VI emission standard is marked with a 'Ⅵ', both using Roman numerals. The difference between National V and National VI vehicles is mainly reflected in the reduction of harmful substances in exhaust emissions. The transition from National V to National VI emission standards shows a difference in carbon monoxide emissions, decreasing from 1000 milligrams per kilometer to 700 milligrams per kilometer, a reduction rate of thirty percent.

What to Do When the Engine Warning Light Is On and the Car Shakes?

If the engine warning light is on and the car shakes, you should call a 4S shop or a professional auto repair shop for help, request a tow truck or wait for rescue, and avoid risking continued driving. Reasons for the engine warning light being on and the car shaking: The ignition system malfunctions, with issues in the working conditions of spark plugs, high-voltage wires, and ignition coils, leading to poor ignition system performance; An overly rich air-fuel mixture in the cylinders may cause symptoms such as knocking and shaking. The engine (Engine) is a machine capable of converting other forms of energy into mechanical energy, originated in the UK, and it can refer to both the power generation device and the entire machine including the power unit.

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