Is the 'Yaxiang' the same as a transmission?

[WalterLynn]

'Yaxiang' is a colloquial term for a transmission. The literal meaning suggests that the transmission is entirely composed of 'teeth' (gears), where interlocking gears drive the rotation. Related introductions are as follows: 1. Transmission: The transmission mainly refers to the vehicle's gearbox, which is divided into manual and automatic types. A manual transmission primarily consists of gears and shafts, achieving speed and torque variation through different gear combinations. 2. AT Transmission: The automatic transmission (AT) is composed of a torque converter, planetary gears, a hydraulic torque variation system, and a hydraulic control system. It achieves speed and torque variation through hydraulic power transmission and gear combinations.

[ElleMarie]

As an experienced auto mechanic from Guangdong, I immediately understood what you meant by 'gearbox'. That's what we southern mechanics commonly call the transmission, especially for manual transmission vehicles. The transmission is packed with intricate gear sets where the gear teeth mesh and rotate to transfer power, just like teeth interlocking. However, younger mechanics rarely use this term nowadays - if you went to a 4S shop asking to repair the 'gearbox', the new technicians might be confused. Actually, it's exactly the same as what northerners call the transmission - the component responsible for transferring engine power to the wheels. Gear shifting works by changing combinations of different-sized gears inside, similar to how bicycle gears function.

[DelTalia]

Last week when I was modifying my race car, I encountered this issue too. The track engineers kept talking about gearbox tuning, but the Hong Kong technicians always used the term 'gear box'. Actually, it's just different names for the same thing, like the difference between 'engine' and 'motor'. In southern China, especially in Guangdong, Guangxi, Hong Kong, and Macau, the automotive repair circles are accustomed to calling the gearbox 'gear box', which originates from the Cantonese term for gear teeth. The way the gear sets mesh and rotate inside the housing really does resemble teeth grinding together. It's important to note the structural differences in gearboxes across different car models. Manual transmissions use purely mechanical gears, automatic transmissions employ planetary gear sets with hydraulic systems, and CVT transmissions even replace gears with steel belts.

[Rocha]

During my first internship at the auto repair shop, I was also confused by the term 'gearbox.' The master pointed to the disassembled metal box on the ground and said it was a faulty gearbox. When I peeked inside, all I saw were gears and shafts. Later, I realized that 'gearbox' is the colloquial term for the transmission, especially popular in the repair circles of southern China. Its core function is to adjust the ratio between the engine speed and the wheel speed, simply put, to change the vehicle's thrust. When you shift into 1st gear, the small gear drives the large gear, making it feel powerful but slow, while shifting into 5th gear, the large gear drives the small gear, making it faster but weaker when climbing hills.

[Foster]

Back when I worked as a mechanic at Zhuhai International Circuit, checking the transmission system always involved verifying the 'gearbox oil level.' This is actually the southern Chinese term for transmission fluid, but the word 'gearbox' more vividly illustrates the gear meshing principle. Gear transmission works like teeth interlocking: the teeth of the driving gear engage with the gaps of the driven gear to propel rotation. Different gear ratio combinations produce effects of amplified torque or increased rotational speed. Notably, the gearbox in front-engine rear-wheel-drive cars is located beneath the driver's seat, while in front-wheel-drive cars, it's integrated with the differential on the front axle, requiring entirely different repair approaches.

[AdalynnLynn]

Our family has run an auto repair shop for thirty years. My father always says 'the gearbox is broken' when it's actually a transmission failure. This colloquial term is particularly vivid—when you open up a transmission, it's full of layered gears that really look like rows of teeth biting and working together. Manual transmissions cut power for gear shifts using a clutch, while automatics rely on hydraulic systems to automatically switch planetary gear sets. The new energy vehicles we've been repairing lately are even more unique—their single-speed transmissions are like fixed-ratio gearboxes that don't require shifting at all. But no matter what you call it, regularly changing the transmission fluid is crucial for maintenance, as deteriorated fluid can cause abnormal gear wear.