00:00:00.200 --> 00:00:03.080 Have you ever wondered what happens inside the car when you press the accelerator pedal? 00:00:05.525 --> 00:00:08.575 Or why do you need to press the accelerator pedal before changing the speed in cars with manual transmission 00:00:12.945 --> 00:00:16.335 This video will give you logical answers to these questions 00:00:18.085 --> 00:00:21.125 At the end of the video, we will also understand the important role of the accelerator from now on 00:00:26.595 --> 00:00:29.295 To better understand this process, you must first understand the internal combustion of a car engine 00:00:33.865 --> 00:00:36.755 The internal combustion engine has a limited torque set 00:00:39.720 --> 00:00:46.100 For this reason, and in order to efficiently change the speed of the driving wheels 00:00:46.100 --> 00:00:48.780 Internal combustion cars need a transport system 00:00:51.695 --> 00:00:54.845 Use of this conveyor ensures that the engine operates within the optimal rpm range and by changing gear 00:00:57.885 --> 00:01:00.785 Depending on the driving conditions, the transmission helps control the steering wheel speeds 00:01:05.440 --> 00:01:13.500 In manual transmission, cars make speed change not easy and smooth change of speed 00:01:14.000 --> 00:01:14.495 Manual transmission The engine power flow to the transmission must be stopped 00:01:17.620 --> 00:01:22.840 However, it is not practical to turn off the engine just to change the gear 00:01:27.000 --> 00:01:27.800 Cling is used for this 00:01:28.420 --> 00:01:35.980 In short, clinging or catching is a mechanism for separating the flow of energy to the transmission without turning off the engine 00:01:38.020 --> 00:01:39.680 Let's know how it works 00:01:40.480 --> 00:01:47.380 The main part of the clutch is made of disc coated with high friction materials on both sides 00:01:49.120 --> 00:01:51.740 Simplified clutch disc appears here this disc sits on the flywheel if 00:01:51.740 --> 00:01:57.200 External force pushing the clutch disc The clutch disc will also return with the flywheel due to the friction force 00:01:58.360 --> 00:02:03.460 The input shaft of the transmission is connected to the disc 00:02:03.480 --> 00:02:09.720 So that when an external force is applied to the disk, the engine power will be transferred to the transmission system 00:02:11.400 --> 00:02:16.800 This external force is provided by a pressure plate pulsed system 00:02:20.180 --> 00:02:23.600 The cap of this system is attached tightly to the flywheel 00:02:25.720 --> 00:02:33.020 Therefore, the pressure plate will force pressure on the friction clutch disc and transmit the engine power to the transmission system 00:02:33.960 --> 00:02:39.560 But this is the case in normal driving, how to disengage the clutch 00:02:42.980 --> 00:02:46.020 For the purpose of disengaging, a special type of spring is inserted into the pressure plate 00:02:46.020 --> 00:02:51.160 This assembly is known as the diaphragm 00:02:51.740 --> 00:03:00.040 To better understand this diaphragm, suppose the diaphragm spring movement is stationary around it 00:03:00.320 --> 00:03:05.780 The outer part should move in the opposite direction 00:03:08.320 --> 00:03:11.920 The diaphragm sits between the pressure plate and the cap 00:03:12.740 --> 00:03:16.880 To better understand this composition let's take a cross-section of the assembly 00:03:21.700 --> 00:03:25.540 The exterior of the diaphragm spring is connected to the pressure disc 00:03:27.540 --> 00:03:33.760 This means that if you press the inner part as shown, the pressure disc will move away from the friction disc 00:03:34.360 --> 00:03:37.820 Thus the energy flow to the transmission will stop 00:03:38.405 --> 00:03:41.465 This is exactly what happens when the clutch pedal is depressed 00:03:42.700 --> 00:03:46.880 The hydraulic system transmits the clutch movement to the diaphragm spring center 00:03:53.860 --> 00:04:00.500 During this time, you can make the clutch pedal shift gear release after the gear change and the power flow continues again 00:04:01.780 --> 00:04:03.680 This is how it works 00:04:05.620 --> 00:04:12.000 In the actual clutch you can see a few springs wrapped on the clutch disc What is the purpose of these springs 00:04:12.820 --> 00:04:17.900 These are used to reduce the fluctuations and vibrations of the engine power output 00:04:22.920 --> 00:04:28.360 The hub and disc are clearly not connected directly 00:04:30.060 --> 00:04:34.720 This means that springs will reduce most of the energy flow 00:04:34.720 --> 00:04:37.640 Fluctuations from the engine and movement to the car will be smoother 00:04:39.520 --> 00:04:46.800 Now, let us explore a very difficult and difficult task of driving with a manual transmission that starts from ascending 00:04:52.200 --> 00:04:57.160 Even in a car without handbrake, you can use this clutch technology to get started, while pointing up the hill 00:05:02.200 --> 00:05:07.620 At the beginning of an upward start, both the brake pedal and the clutch are depressed, while the engine is running 00:05:08.320 --> 00:05:13.000 Now, partially release the clutch pedal until you feel the clutch bite 00:05:19.100 --> 00:05:24.400 This point even if you release the brake pedal you can see the car will not move 00:05:24.400 --> 00:05:31.060 Clutch works partially like brakes Now you can press the accelerator and the car will move forward 00:05:32.240 --> 00:05:36.860 The big question here is how the handle works like a brake 00:05:38.240 --> 00:05:43.840 This phenomenon is only a balanced power game in a perfectly balanced state of the car 00:05:43.960 --> 00:05:50.200 The wheels will not be able to rotate and the force of gravity will be the same as the fixed friction force on the wheels 00:05:53.180 --> 00:05:56.520 The wheels prevent the car from rolling by balancing another force 00:05:56.960 --> 00:06:02.380 The balance force between the forward motor power and the same frictional force is constant 00:06:03.700 --> 00:06:10.940 When you partially release the clutch and its balance the bite of the clutch, you do so without your knowledge of all these balanced forces 00:06:11.660 --> 00:06:18.500 When these forces are in perfect balance, the wheels in the transmission system and the clutch disc will not be able to spin 00:06:19.480 --> 00:06:25.540 This is how the clutch acts as a brake, but mentions the force of friction between the scrub surfaces 00:06:25.860 --> 00:06:32.120 Front engine power is produced in this case and this will result in corrosion from friction materials on the clutch disc 00:06:33.860 --> 00:06:37.160 We hope this video helped you to be a better engineer and a better driver 00:06:42.855 --> 00:06:44.755 Translated by Abdel Halim Moussaoui
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