Jitter is a common problem of this double clutch or an isolated case

The problem of starting jitter, in fact, old drivers who have driven manual transmissions know the reason. When starting, the clutch contact point is not accurate, and the accelerator will shake at this time. Volkswagen, Ford, BYD's dual-clutch transmission is actually an intelligent manual transmission, and its transmission and shift principle are the same as manual transmission.

The clutch control of the dual clutch is completed by computer, and the clutch plate of the new car is not worn, and the manufacturer has set the clutch contact point parameters according to the state of the new clutch plate. Therefore, when you test drive a new car, you will start from N and step on the accelerator, and the car will go very smoothly. However, as the mileage increases, the clutch wear gradually increases, and the clutch contact point slowly becomes higher.

With manual transmission, people can actively adapt to this change, while dual-clutch computers are not as smart as others. The computer still uses the original parameters to control the clutch plate that has been worn, and the clutch contact point is naturally inaccurate. If you step on the accelerator during this semi-linkage phase, the jitter caused by clutch slippage is certain.

If you find that you have a problem with starting jitter, you can solve the problem by hanging D gear, releasing the foot brake, and slowly pressing the accelerator after the car automatically creeps when there is no dual-clutch re-learning. Another small discovery here is that if you release the foot brake just after putting on the D gear, you will find that the car will wait 1-2 seconds before it squirms. If you put on D gear a few seconds in advance and release the foot brake, the car will immediately squirm.

This is what BYD officially said is hanging D gear, idling and stopping, and the clutch will be at the zero point of semi-linkage contact.

It is recommended that dual-clutch car owners, when they find that the shaking and frustration are more obvious, do their own dual-clutch self-learning function, so that the computer can re-find the clutch contact point and adapt to the clutch after wear, so that the above problems can be fundamentally solved.

Hello friends, like you described this situation, it is generally due to the double clutch clutch plate, uneven caused by this situation, this is not a common problem, replace the clutch, the pressure plate can be effectively solved, understand, friends, you only need to do the corresponding processing work according to the current fault state, I hope mine can help you if you have any questions can contact me at any time.

Not all dual-clutch transmissions will shake when they start automatically, some cars will shake when they have a lease, and some cars will not.

The starting jitter of a dual-clutch transmission car is related to the matching and adjustment of the gearbox.

A lot of cars use dual-clutch transmissions, which are based on manual transmissions.

The structure of a dual-clutch transmission is similar to that of a manual transmission. This gearbox only has one more clutch and a shift control mechanism than the manual transmission. Vertical signs.

One set of clutches in the dual-clutch gearbox is used to control odd-numbered gears, and the other clutch is used to control even-numbered gears.

The dual-clutch transmission has high transmission efficiency and fast gear shifting speed, which is very suitable for use with small displacement turbocharged engines.

But the shift smoothness of the dual-clutch gearbox is not as good as that of the CVT gearbox and the AT gearbox, which is caused by the working principle of the dual-clutch gearbox, and this problem is inevitable.

However, most consumers who buy dual-clutch cars do not pay much attention to comfort, while consumers who choose dual-clutch transmissions pay more attention to the power and driving pleasure of the car.

The dual-clutch gearbox shifts cleanly and cleanly, giving the driver a high level of driving pleasure.

Most supercars and high-performance cars also use dual-clutch transmissions.

Millions of car purchase subsidies.

Many car owners find that the clutch is shaking when using the vehicle, and they are worried about clutch damage, so what is the reason for the clutch shaking?

1. It may be that the screws that fix the clutch, or the spring of the clutch is loose, resulting in uneven pressure distribution of the clutch, and when the owner uses the clutch, there will be shaking, and the owner needs to check the clutch and screws and springs in time.

2. It may be that there are more impurities and oil stains on the clutch plate, the thickness of the clutch plate is uneven, and the owner has no way to completely separate the engine and the clutch plate when the car is in gear, and the vehicle will shake, and the owner needs to clean the clutch plate in time.

3. It may be that the disconnecting lever of the clutch is faulty, and the clutch will shake, and the owner needs to repair or replace the new discharging lever in time.

If the clutch is shaking, it is recommended that the owner go directly to the 4S shop to check and try to use it after repairing the vehicle, so as to avoid unnecessary traffic accidents.

In the process of clutch use, the main faults that often occur are heavy clutch pedal, slippage, separation and dismantling (difficult to hang gear), trembling, breaking, abnormal noise, etc.

Fault phenomenon of heavy clutch pedal.

Cause inspection method and maintenance failure phenomenon: the foot clutch pedal is heavy, the foot is easy to get tired, and there is a significant difference in the clutch pedal force compared with the same other vehicles.

Causes of clutch failure:

Separation master pump assembly: improper adjustment, pedal too high, and no idle stroke.

Driven disc (friction plate) assembly: the friction plate wears a large amount of (worn to the rivet of the friction plate).

Clutch master cylinder, sub-cylinder, separation fork, separation bearing and other hairpins, the movement is not flexible.

The working surface of the flywheel and the working surface of the pressure plate are worn out (the wear is exceeded.

Separation refers to excessive wear (the arc at the end of the finger has been smoothed), and excessive wear of the separation bearing (the thrust plane grinds out of the concave arc).

Repair method:

Step 2: Check whether the clutch pedal, master cylinder, sub-cylinder, separation fork, separation bearing, etc. are stuck, inflexible movement, and whether the clutch pedal is back in position normally. If the problem persists after exclusion, proceed to the next step.

Step 3: Check whether the clutch disc assembly, cover assembly, and flywheel are overworn, and whether the pressure plate separation finger and the separation bearing thrust plane are excessively worn. The friction plate of the disc assembly should not leak out the rivet when worn; Measured with vernier calipers, the wear of the working end face of the pressure plate of the cover assembly should not be greater than; The installation depth of the flywheel is measured with a depth gauge, and the wear depth should not be greater than the above; The arc surface of the finger end of the pressure plate separation should not be smoothed; The thrust plane of the separating bearing should not be ground out of the concave arc; Those that do not meet the size should be replaced.

However, during the repair process, it should be noted that when a part does not meet the requirements, it should be replaced separately, and it should not be replaced in a general set.

The sensation of vibration is normal. But if you are driving with your feet on the clutch pedal for a long time, excessive clutch wear cannot be ruled out.

That.

First, it may be that the pressure distribution of the clutch of the car is uneven, or the spring is loose or disconnected, and the pressure level is wrong, so the clutch is unstable.

Second, it may be that the clutch compression spring is too elastic, which causes the clutch to tremble.

That. 3. The stagnation of parts such as the separation sleeve and the separation fork shaft, resulting in the clutch trembling.

Fourth, it may be that the lining of the moving disc is oily or cracked, or the jitter caused by the different thickness of the driven disk.

That. Fifth, it may be the clutch shake caused by the bending of the main and slave disc and the inconsistent height of the separation lever, what needs to be seen, and the fault should be found and the maintenance should be completed.

There may be a problem, so let's take a look.

DoubleCauses of failure of clutch torque too high:

1. The gearbox computer is damaged and does not work properly.

2. The automatic transmission clutch assembly is faulty.

3. If the direct matching between the dual clutch plate and the gearbox is not coordinated, it can be solved by re-flashing the software, and the clutch needs to be re-set and adapted, and needs to be refreshed.

Clutch acre hea

The clutch is dust-resistant between the engine and the transmission, and is the "switch" of the power transmission between the engine and the transmission, which is a transmission mechanism that can not only transmit power, but also cut off the power. Its main function is to ensure that the car can start smoothly, reduce the shock load of the transmission gear and prevent the drive train from overloading when shifting.

In general automobiles, the clutch is disengaged and engaged when the car shifts, and the power transmission is temporarily interrupted between the separation and engagement. This has no effect on ordinary cars, but in racing against time, if the clutch is not well mastered and the power cannot keep up, the speed will slow down, which will affect the performance.