What Causes the Chassis Noise in Chery Tiggo 3?

What Component of a Vehicle is the Transmission?

The transmission is one of the main components of a vehicle's drivetrain. It is a mechanism designed to alter the speed and torque from the engine, capable of fixing or changing the gear ratio between the output and input shafts. It enables the vehicle to reverse and idle stop, also known as the gearbox. The transmission consists of a gear-shifting mechanism and a control mechanism, with some vehicles also featuring a power take-off mechanism. Most transmission mechanisms use ordinary gear trains, while some employ planetary gear systems. Ordinary gear transmission mechanisms typically utilize sliding gears and synchronizers. The gearbox is usually located in the vehicle's engine compartment, connected to the engine, or sometimes beneath the central gear lever in the front row of the car. Opening the front hood generally does not reveal the gearbox; the vehicle must be lifted, and the protective panel on the front chassis opened to get a clear view. The position of the gearbox varies depending on the vehicle model and drivetrain configuration. In actual vehicle usage, scenarios such as starting, idling, low or high-speed driving, acceleration, deceleration, climbing, and reversing require the vehicle's driving force and speed to vary over a wide range. However, the widely used piston engines have a relatively limited range of output torque and speed variations. To adapt to constantly changing driving conditions and ensure the engine operates under favorable conditions (higher power, lower fuel consumption), the transmission is incorporated into the drivetrain system. The gearbox contains many gears, which are the core components of the transmission. A combination of several gears is referred to as a gear set. The gearbox also includes three shafts: the input shaft, output shaft, and intermediate shaft. The vehicle transmission alters the gear ratio to modify the torque from the engine crankshaft, meeting the varying demands for driving wheel traction and speed under different conditions such as starting, accelerating, driving, and overcoming road obstacles. At low speeds, gear sets with larger ratios are engaged, while at high speeds, gear sets with smaller ratios are used. The speed of the gears is inversely proportional to the number of teeth—the more teeth a gear has, the slower its rotation. By combining gears of different sizes, various gear ratios can be achieved. Vehicle transmissions are categorized into manual and automatic types. Automatic transmissions include AT (automatic transmission), DCT (dual-clutch transmission), CVT (continuously variable transmission), and AMT (automated manual transmission). AMT Transmission: This is the earliest type of automatic transmission, structurally similar to a manual transmission but equipped with an additional control mechanism for gear shifting and clutch operation. AT Transmission: Also known as a torque converter transmission, this is the most mature and widely used transmission type. AT transmissions offer smoother shifting and greater durability. DCT Transmission: Also called a dual-clutch transmission, this is currently the most popular transmission type. Its structure differs significantly from manual transmissions, featuring two clutches that separately control odd and even gears. DCT transmissions provide high transmission efficiency and rapid gear shifts. CVT Transmission: Known as a continuously variable transmission, CVTs are lightweight and compact. Vehicles equipped with CVTs typically achieve better fuel efficiency. The internal control mechanisms of automatic transmissions are highly precise, with minimal clearance between components. Most automatic transmissions require oil changes every two years or 40,000–60,000 kilometers. Under normal operating conditions, transmission oil temperatures reach around 120°C, necessitating high-quality and clean oil. Over time, transmission oil can form sludge, increasing wear on friction plates and other components, affecting system oil pressure and power transmission. Sludge in dirty oil can hinder valve movement, impairing oil pressure control and causing transmission abnormalities. Manual transmissions primarily consist of gears and shafts, achieving speed and torque variations through different gear combinations. Automatic transmissions, on the other hand, comprise a torque converter, planetary gears, a hydraulic torque conversion system, and a hydraulic control system, utilizing hydraulic power and gear combinations to vary speed and torque. Structure of a Vehicle Transmission: The basic design includes a housing, transmission components, and control mechanisms. The housing serves as the base, supporting all transmission components and containing lubricating oil. It features precisely bored holes for bearing installation. Since transmissions endure variable loads, the housing must be sufficiently rigid, with reinforced inner walls and a complex shape, typically cast from gray iron (commonly HT200). For ease of assembly, transmission and control components are often split, with the cover bolted to the housing and securely positioned. The housing includes ports for oil filling, draining, and level inspection, as well as provisions for heat dissipation.

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Is it necessary to replace the filter when changing transmission fluid?

Replacing the transmission fluid filter is essential when changing transmission fluid. The steps for changing transmission fluid are: 1. Remove the drain plug at the bottom of the transmission to drain the old fluid; 2. Remove the inner and outer shells of the transmission; 3. Take off the transmission fluid filter; 4. Remove the oil pan gasket and clean the surrounding stains; 5. Wipe the cleaned transmission fluid filter with cotton yarn; 6. Add new fluid and complete the installation. The transmission consists of a gear transmission mechanism and a gear shifting mechanism. The functions of transmission fluid are: 1. Keeping the gear system clean; 2. Lubricating and prolonging the life of the transmission device; 3. Cooling and sealing.

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What Causes the Exhaust Pipe to Make a Puffing Sound and Shake?

The reasons for the exhaust pipe making a puffing sound and shaking are: 1. The air-fuel mixture is too rich, and unburned mixture enters the exhaust pipe, encountering fresh air and causing backfire; 2. Poor valve sealing, leading to incomplete combustion; 3. Some exhaust valves are eroded or have poor sealing; 4. Carbon deposits at the contact surfaces between some intake/exhaust valves and their seats; 5. Some valve lifters have no clearance, or the two idle ports of the dual-barrel carburetor are unevenly adjusted or clogged; 6. The exhaust pipe is damaged, unable to muffle noise or purify emissions. The maintenance methods for the exhaust pipe are: 1. Avoid water entering the muffler when driving in rain or washing the car; 2. Regularly clean dirt inside the exhaust pipe.

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Is the Mercedes EQC a four-wheel drive?

The Mercedes EQC is a four-wheel drive vehicle, featuring a dual-motor four-wheel drive system. It utilizes a double-wishbone independent suspension at the front and a multi-link independent suspension at the rear. The Mercedes EQC is a mid-sized 5-door, 5-seat SUV with body dimensions of 4774mm in length, 1890mm in width, and 1622mm in height, with a wheelbase of 2873mm. It comes with 235/55R19 tires and an electronic parking brake. The EQC is equipped with a 286 horsepower AC or asynchronous dual-motor setup and a single-speed electric vehicle transmission, delivering a total motor power of 210 kilowatts and a total motor torque of 415 Newton-meters.

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How to Use the Prado Differential?

Prado differential is used by pressing the switch on the instrument panel to energize the solenoid valve located in the axle housing, which controls compressed air to lock the differential. The Prado is a mid-to-large-sized 5-door, 7-seat SUV with body dimensions of: length 5010mm, width 1885mm, height 1890mm, and a wheelbase of 2790mm. The Prado is equipped with a 3.5L naturally aspirated engine and a 6-speed automatic transmission, delivering a maximum power of 206 kW at 6000 rpm and a maximum torque of 365 Nm at 4500 rpm. It features a front-engine, four-wheel-drive layout, with a double-wishbone independent front suspension and a four-link non-independent rear suspension.

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What is the actual fuel consumption of the Xiaoka Star Q2?

Times Xiaoka Star Q2 has a fuel consumption of 7-8 liters per 100 kilometers. Method for calculating fuel consumption: By resetting the mileage data recorded on the vehicle dashboard, the onboard computer automatically calculates the vehicle's fuel consumption based on the recorded mileage and fuel consumption data. Definition of constant-speed fuel consumption: Constant-speed fuel consumption is the vehicle's fuel consumption per 100 kilometers obtained in the constant-speed driving fuel consumption test specified by national standards for certain types of vehicles. During road tests, it is necessary to comply with the standards in the national standards for test conditions, test methods, test road selection, etc. Test conditions include: the load of the test vehicle, the accuracy of test instruments, fuel, tire selection, ambient temperature, humidity, air pressure, wind speed, etc.

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What Causes the Chassis Noise in Chery Tiggo 3?

What Component of a Vehicle is the Transmission?

Is it necessary to replace the filter when changing transmission fluid?

What Causes the Exhaust Pipe to Make a Puffing Sound and Shake?

Is the Mercedes EQC a four-wheel drive?

How to Use the Prado Differential?

What is the actual fuel consumption of the Xiaoka Star Q2?

Is there a relationship between incorrect camber angle and shock absorbers?

Is the McLaren GT equipped with a dual-clutch transmission?

What is the normal temperature range for the radiator?

What engine is equipped in the Volkswagen C-TREK?