Pacific Automotive Network has multiple brands of AT gearboxes: 1. AT gearboxes produced by the Korean Hyundai brand; 2. AT gearboxes produced by the ZF brand; 3. AT gearboxes produced by the Japanese Aisin brand ; 4. AT gearbox produced by American General Company.
The pump impeller and the turbine are a pair of working combinations. They are like two fans placed opposite each other. The wind blown by one fan will drive the blades of the other fan to rotate, and the wind becomes the medium for transmitting kinetic energy. , if liquid is used instead of air as the medium to transmit kinetic energy, the pump wheel will drive the turbine to rotate through the liquid, and then a guide wheel is added between the pump wheel and the turbine, and the reaction force can achieve a speed difference between the pump wheel and the turbine. Achieved variable speed and torque. Since the automatic speed and torque range of the hydraulic torque converter is not large enough, several rows of planetary gears are connected in series behind the turbine to improve efficiency. The hydraulic control system will automatically control the planetary gears as the engine operation changes, thereby achieving automatic speed and torque changes.
The automatic gear shifting of the auxiliary mechanism cannot meet the various needs of driving, such as parking, reversing, etc., so there is also an intervention device, that is, a manual lever, marked P (parking), R (rear gear), N (neutral), D (forward), and there is an additional gear in the forward gear for starting or going up a slope. Since its transmission area is divided into several transmission ratio sections, it is stepless only within the specified transmission section. Therefore, AT is actually an automatic transmission between stepped and continuously variable.
(Pictures/Text/Photos: Pacific Automotive Network Question and Answer Calling the Beast)