Nissan Qashqai DCI Tekna For Sale From UK At Reasonable Price
A Hydraulic Torque Converter Can Auto Adjust, If It Is The Part Of Nissan Qashqai DCI Tekna For Sale
The automatic change is a transmission system that is capable by itself of selecting all gears or relations without the need for the direct intervention of the driver and that aspect should be known by the buyer of Nissan Qashqai DCI Tekna for sale. The change from one relationship to another occurs as a function of both the speed of the vehicle and the speed of the engine so that the driver does not need either clutch pedal or shift lever.
To Accelerate The Pedal
The simple act of stepping on the accelerator pedal causes the change in the ratio as the engine varies the speed of rotation. The result that the driver appreciates is that of a comfortable change that does not produce jerks and that allows it to pay full attention to traffic. Therefore the automatic change not only provides more comfort but also gives the vehicle greater active safety. The fundamental elements that make up most of the current automatic changes are a hydraulic torque converter that varies and automatically adjusts its output torque, to the torque that the transmission needs. an epicyclic train or a combination of them that establish the different relations of change. a control mechanism that automatically selects the relationships of the epicyclic trains. This control system can be either mechanical, hydraulic, electronic or a combination of them.
The Electronic Control
Precisely the electronic control is the biggest innovation available in the current automatic changes giving the driver the possibility to choose between several driving programs (economic, sports, winter) by means of a selector lever, nowadays there are control systems that can automatically select the very suitable gear change program for each specific driving situation. Among the data that these systems use for their calculations are, the frequency with which the driver steps on the brake, the slope of the road, the number of curves of the same, etc. the discussed info is technical but should help to evaluate the reasonable Nissan Qashqai DCI Tekna price, when a buyer contact with used car exporter.
The Hydraulic Clutch
The hydraulic clutch that later evolved called torque converter, acts as an automatic clutch between the engine and the gearbox that, in these cases, is usually automatic or semi-automatic. This clutch allows the engine to turn at idle (no load) and also transmits the engine torque when the driver accelerates. It is based on the transmission of energy that a centrifugal pump communicates to a turbine through a liquid that is usually mineral oil. When the motor rotates, the oil contained in the housing is driven by the pump, projecting on its periphery towards the turbine, in whose blades it incurs parallel to the axis. Said oil is driven by the rotation of the pump or conductive rotor, thus forming a toric vortex. The kinetic energy of the oil that collides with the blades of the turbine produces a force that tends to turn it. When the engine is idling, the kinetic energy of the oil is small and the force transmitted to the turbine is insufficient to overcome the strong torque. Under these conditions, there is a total slip between the pump and turbine with which the turbine remains immobile. The oil slides through the blades of the turbine and is returned from the center of the turbine to the center of the pump, where it is driven back to the periphery to continue the cycle.
The Resistant Torque
As the revolutions of the engine increase, the whirlwind of oil becomes more consistent, affecting more strongly on the blades of the turbine. This action defeats the resistant torque and rotates the turbine, while a slip of oil between the pump and the turbine is verified which involves the progressive coupling of the clutch. When the engine turns rapidly developing its maximum torque, the oil is driven with great force in the turbine and it is dragged at high speed without there being little slippage between the two. The torque is transmitted intact to the clutch transmission, whatever the torque is and, even though it accelerates rapidly from idle, the movement of the vehicle occurs progressively, there is a slip that decreases as the kinetic force It's beating the tough pair. When climbing an incline, the speed of the vehicle decreases by increasing the resistant torque, but the engine continues to develop its maximum torque at the expense of greater slippage, which can keep the direct longer without danger of the engine stalling.
