Automatic transmissions today are represented by both standard torque converter automatic transmissions and robotized transmissions. These transmissions have significant differences in both their design and the subsequent operation of the car. It is believed that the torque converter will be more reliable than the robot, so most potential car owners prefer to choose cars with a conventional automatic transmission rather than a robot or variator. Let’s talk in more detail about what the differences are between such robot and torque converter gearboxes and http://scrap4cash.com/.
Distinguishing features of the robot and torque converter
Classic automatic transmissions with a torque converter appeared about 50 years ago. Such transmissions were designed to simplify the operation of cars, eliminating the need for the driver to constantly depress the clutch and manually select speeds. These automatic transmissions were monitored by automatics, which determined the current engine speed and the speed of the car, and depending on this selected a particular gear.
Robotic gearboxes were initially used in the world of motorsport, and later began to be introduced in the production automobile industry. Their main purpose is to make gear shifting as smooth as possible, but such requirements significantly complicated the design, which led to the appearance of various kinds of failures. Today, major automakers are trying to develop their own models of robotized transmissions, which are installed on both premium cars and budget cars.
The main distinguishing feature of an automatic transmission from a robot is the dynamics of the car and the smoothness of travel. At the expense of a more complex design and advanced automation robot allows the better realization of the dynamic characteristics of the engine, while providing the smoothest possible gear shifting, which is practically not felt by the driver and passenger. In terms of dynamics, such cars with a robot will even surpass cars that are equipped with conventional manual gearboxes.
Another significant feature of this transmission is the need to activate the neutral gear on the robot often, especially when the driver stops for 30 seconds or more at a traffic light or in a traffic jam. Initially it was necessary to put the selector into neutral manually, but later this work was done by automatics, which made it a bit easier to operate the car. This is necessary to prevent stress on the gearbox, avoiding damage to the clutch and other vital assemblies on the robotized automatic transmission.
Many automatic transmissions with torque converter have the so-called crawling mode, when the box, being on Drive, even without pressing the gas pedal, transmits a small torque to the drive wheels and the car begins to move. In fact, the driver only needs to release the brake pedal, after which the car immediately begins to move slowly forward. This is extremely convenient in traffic jams, all the driver has to do is simply release the brake or apply it when he or she needs to stop the car. Whereas with a robot there is no such crawling mode, accordingly it is required not only to release the brake, but also to press the accelerator pedal.
Robotic transmissions have a more complex design, which negatively affects the reliability indicators. Despite all the claims of automakers that they were able to create a truly reliable and trouble-free in operation robotized automatic, still on this indicator such a transmission does not reach the classical torque converter. As a result, the necessity of major overhaul is not uncommon already at the mileage of 150 000 kilometers. This significantly increases the car owner’s expenses, while such work on the torque converter will be required at mileage of 250,000-300,000 kilometers.
The old robots, which appeared in the mid-twenties, had numerous electronics glitches, their firmware was not optimized for use in big city conditions. In traffic jams or when sudden acceleration was needed, the robot could be overly thoughtful, the car would be stalled, and the car would accelerate slowly, followed by a hard jerk. All this made driving the car dangerous at all. However, later on, the control automatics was improved, and today such problems have been completely solved.
If we talk about the differences between the robot and the automatic, it should be noted the smooth running and better dynamics, the need for constant activation on the robot neutral gear, as well as the absence of such a transmission crawling mode. According to statistics, the torque converter automatic transmission is still more reliable than the robot, so it is not surprising that it enjoys the greatest popularity among buyers today.