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Automobile starter in the role of the one-way clutch

Automobile starter in the role of the one-way clutch

* : * : admin * : 2014-11-13 * : 79
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     1, to ensure a smooth start car
     This is the primary function of the clutch. In the car started before, the natural first start the engine. The car started, the car is completely stationary state from gradual acceleration. If the drivetrain (which links the entire car) rigidly contact with the engine, the transmission of a hanging file, the car will suddenly look forward, but it does not start. This is because when the car from standstill to pediment, have a great inertia force, causing the engine drag torque greatly. In this role inertial moment of resistance, a sharp decline in the blink of time the engine speed to the minimum steady speed (usually 300-500RPM) below, namely the engine stalled and can not work, of course, cars can not be started.
     Therefore, we need the help of the clutch. After engine start, before the car started, the driver first clutch pedal, the clutch is disengaged, the engine and drivetrain disengaged, then the transmission is in gear, and then gradually release the clutch pedal, the clutch gradual engagement. In the bonding process, the engine torque is gradually increased hindered, it should also gradually depressing the accelerator pedal, i.e., gradually increasing the amount of fuel supplied to the engine so that the engine speed is always maintained at a minimum stable speed, without flameout. Meanwhile, due to the tightness of the clutch engagement gradually increasing engine torque transmitted to the drive wheels via the drivetrain will gradually increase, when sufficient to overcome the initial resistance to traction, the car begins to move from static and gradually accelerates 2, to ensure drivetrain swap when smooth shift work
     2, to achieve smooth shifting
     In cars with the process, to adapt to changing driving conditions, the drive train to work often have to switch to a different position. Gear type transmission shift, usually hanging file toggle gear or other agencies, to allow use of a gear drive gear pair launched, and then make another deputy to enter the work shift gears. Before shifting the clutch pedal must interrupt power transmission, facilitates the original gear meshing pair disengaged, while the speed of the new gear meshing engagement portion of the gradual trend vice synchronized into engagement when the impact can be so big reduced, to achieve a smooth shift.
     3, to prevent transmission system overload
     When issued an emergency brake when the car is, if there is no clutch, the engine and the drivetrain will vary drastically reduce speed rigid connections, in which all the moving parts and therefore will have a great moment of inertia (its value may be much higher than normal engine work the maximum torque), for causing the drive train load exceeds its carrying capacity, leaving the mechanical damage. With the clutch, the clutch can rely on the active part and the relative motion between the driven part may have to eliminate this risk. Therefore, we need to limit the maximum torque clutch transmission system is subjected to ensure safety.
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