What does auxiliary transmission mean?
3 Answers
Auxiliary transmission is an additional transmission attached to the main transmission, which serves to increase the number of gears and expand the range of transmission ratios. The following are specific introductions about auxiliary transmission: 1. Application: In heavy-duty vehicles, due to large load variations, a wide range of transmission ratios is required, which is difficult to achieve with a standard five-speed transmission. By adding an auxiliary transmission, a five-speed main transmission can be transformed into a six-speed, ten-speed, or even twenty-speed transmission. Adding an auxiliary transmission can reduce fuel consumption, but skilled operation is required to make it effective. 2. Structure: Simple transmissions have the advantages of high efficiency, simple construction, and ease of use, but they have fewer gears and a limited range, making them suitable only for certain vehicles with fewer gears. To expand the range, the size of the transmission would increase, along with the span of the shaft. To increase the number of gears without excessively increasing the shaft span, a combined transmission can be used.
When driving trucks or some heavy-duty vehicles, I've encountered the auxiliary transmission. It's essentially a small additional gear mechanism mounted behind the main gearbox, giving drivers more gear options. For example, when climbing steep slopes, switching to low gear via the auxiliary transmission reduces engine strain and saves fuel; while on highways, shifting to high gear ensures smoother speed. Particularly in long-distance mountain transport, the auxiliary transmission makes the vehicle more adaptable to varied terrains, like having an extra set of hands and feet. However, it's important to note that if it wears out and shifting becomes rough, it might suddenly increase fuel consumption or cause engine noises, so regular lubrication checks and maintenance are necessary. Overall, it's a practical tool, but not commonly found in everyday cars.
From my experience with car modifications, a secondary transmission is an auxiliary gear system primarily used to expand the gear range of the main transmission. Simply put, it adds a small gear set next to the main transmission, allowing you to switch between High and Low modes to adapt to different driving conditions. The benefits include enhanced climbing power and fuel efficiency, especially in some off-road vehicles or trucks where the design is quite ingenious. Modern vehicles integrate similar functions through electronic controls, but older manual secondary transmissions require lever switching—be careful not to apply excessive force during operation to avoid damage. In fact, when paired with a four-wheel-drive system, it can push off-road performance to the limit, but don’t neglect regular inspections of connection points during maintenance.
