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What does a 10AT transmission mean?

1 Answers
DelSkylar
07/29/25 11:44am
A 10AT transmission refers to a car's transmission having 10 gears. Generally speaking, the more gears there are, the more detailed the division, which can significantly improve the car's fuel economy. In theory, when driving at the same speed and load, the lower the engine speed, the more energy-efficient it is. Generally, it is not recommended for the engine speed to drop below 1000 rpm while driving. Therefore, if shifting to the next higher gear would cause the engine speed to fall below 1000 rpm, the transmission's shift logic will not allow an upshift. However, if there is an additional gear between these two, engaging this gear can bring the engine speed 'closer to the 1000 rpm minimum,' theoretically reducing fuel consumption. A wider lock-up range combined with denser low-gear ratios enhances low-speed smoothness, thereby improving driving quality. An automated manual transmission is a transmission device that combines manual and automatic shifting functions. This technology was developed to improve the economy and controllability of automatic transmissions, allowing the driver to regain control over shift timing, which is usually determined by the computer, thereby enhancing driving operability and enriching the driver's experience. An automated manual transmission combines manual and automatic shifting in a car. This transmission merges the advantages of both automatic and manual transmissions, minimizing power loss in the shifting system. Manual transmissions allow drivers to freely adjust gears and engine speed based on their subjective preferences. Unlike pure manual transmissions, automated manual transmissions, though equipped with a clutch mechanism, do not require driver operation—this is known as an automatic clutch. When using the manual mode in an automated manual transmission car, the driver only needs to switch to manual mode and adjust the gears up or down as the speed changes. If the speed does not match the selected gear, the transmission will automatically downshift; if the speed exceeds the current gear, the driver must manually upshift. Working Principle: Structurally, an automated manual transmission mainly consists of a conventional gearbox (similar to a manual transmission), an electronically controlled clutch, an automatic shift mechanism, and an electronic control unit. The electronically controlled clutch automatically engages or disengages the clutch as needed, or 'floats' it. During operation, the transmission ECU controls a stepper motor to move the clutch fork, engaging or disengaging the clutch. The automatic shift mechanism automatically selects the appropriate gear as needed, typically using two stepper motors controlled by the transmission ECU. The gear lever setup is similar to that of a conventional automatic transmission, with no clutch pedal. Essentially, this transmission uses automatic control to simulate manual shifting. Under normal driving conditions, it operates much like a hydraulic automatic transmission, except that the clutch is disengaged when the car is stationary. Therefore, if parked on a slope, the driver must apply the brakes to prevent the car from rolling. In manual mode, the driving experience resembles that of a manual transmission car, with direct power delivery and no need to depress the clutch. Additionally, the driver can skip gears when shifting up or down. Product Types: Electronic and hydraulic control devices are added to the base of an automatic transmission. Even in manual mode, the automatic transmission system remains in control. If the driver forgets to upshift, the system will do it automatically. It will not execute a downshift if the speed is too high. At startup, it automatically selects 1st or 2nd gear. If the wheels slip, it switches to 'adverse weather mode' to prevent wheel spin. This system combines a conventional 'H'-pattern manual transmission with an automatic clutch. The goal is to automate the clutch without altering the traditional shift mechanism of a manual transmission.
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