How about Gertrak gearbox?

Gertrak is the largest independent transmission manufacturer in the world, and currently provides products and technical support to more than 40 global automobile manufacturers such as Audi, Ford, General Motors, BMW and Suzuki. At present, the mainstream gearboxes on the market are MTATCVT and dual clutch, each with different equipment. So, what about the Getrag gearbox?

How about the Getrag gearbox?

Gertrak (Jiangxi) Transmission System Co., Ltd. is a strong combination of German Gertrak Group and jiangling motors Group (JMCG), and joined hands with the world's best transmission technology products and service providers. It was officially put into production in Nanchang, Jiangxi Province in June 2007. The quality is stable at present. The gearbox is a very important part of the vehicle, which can change the transmission ratio and expand the torque and speed functions of the driving wheel. With the development of modern science and technology, the gearbox has also been updated. From the original manual gearbox to the present stepless gearbox, it is more and more convenient to operate from synchronization to synchronization. At present, diesel engine is widely used in construction machinery, and its torque and speed range is small, which can not meet the requirements of traction and running speed of vehicles under various working conditions. A gearbox is needed to solve this contradiction. The performance of gearbox is the key to measure the power, economy and driving performance of construction machinery. Gertrak gearbox Germany's Gertrak gearbox is one of the largest independent gearbox manufacturers in the world. GETRACK was founded in 1935 and is headquartered in Cologne, Germany. GETRACK provides a full range of gearbox products to the world, including manual gearbox, powershift and its hybrid upgrade and electric drive transmission system. At present, it provides supporting services for more than 40 global automakers such as Audi, Ford, General Motors, BMW and Suzuki. The MT82 project is an upgraded product, which meets the national four and five emission standards. Most of the products will be exported to North America and Australia, which will open up the sales field of the company and increase the export income of this region. Using AMT electronic control technology to realize the automation of shift process has the characteristics of high efficiency, light weight, low cost and energy saving. The follow-up company will introduce more advanced technology with the development of AMT technology in Nanchang factory, which is suitable for the high-end automobile market and represents the development trend and direction of gearbox in the future. How about the Getrag gearbox? It is one of the four largest gearbox manufacturers in the world.

Common faults of automatic transmission

1. Failure of automatic gear upshifting too late: When the car is running, the upshifting speed is obviously higher than the standard value, and the engine speed is too high before upshifting, so it is necessary to use the accelerator pedal to upshifting in advance (that is, release the accelerator pedal for a few seconds before stepping on it), so that the automatic gear can be upshifted or upshifted. Troubleshooting: the throttle cable or throttle position sensor is not suitable; The throttle position sensor is damaged; The oil pressure of the main oil circuit or throttle adjustment oil pressure is too high; Forced downshift, switch short circuit; Or there is something wrong with the computer sensor. 2. The automatic gear cannot be upshifted: the automatic gear cannot be upshifted to the second gear or high gear when the car is driving; When driving, the automatic transmission can be engaged in 2nd gear, but not 3rd gear or overdrive gear. Troubleshooting: the throttle cable or throttle position sensor is not suitable; The speed sensor is faulty; Corresponding brake or clutch failure; The shift valve is stuck; Bit switch failure. 3. The car won't start: the car won't start regardless of whether the shift lever is in reverse or forward gear; After the car starts, you can run a short distance, but you can't run if it is a little hot. Troubleshooting: the oil pan of automatic transmission is damaged and the automatic transmission leaks oil; The connecting rod and zipper between the gear lever and the rocker arm of the manual valve are loosened, and the manual valve is kept in the empty position and the parking position; The oil inlet screen of the oil pump is blocked; The oil pump is damaged. 4. Automatic transmission skidding: When the accelerator pedal is pressed during automatic starting, the engine speed rises, but the vehicle speed rises slowly. When stepping on the accelerator pedal while driving, the engine speed will increase, but the vehicle speed will not increase rapidly. The car runs normally on a flat road, but it can't go uphill, and the engine speed is extremely high. Troubleshooting: the automatic transmission oil level is too low; The oil level of automatic transmission is too high, and a large number of bubbles are generated after being violently stirred by planetary gear mechanism during operation. Or the friction plate and brake band of clutch brake are worn or even burned; The oil pump is worn or even the main oil circuit leaks oil, resulting in low oil pressure in the oil circuit; Overspeed clutch slipping; Or the seal ring of clutch brake piston is damaged, resulting in oil leakage. 5. Automatic transmission gear shifting shock fault: when starting automatically, when shifting from parking gear (P gear) or neutral gear (N gear) to reverse gear (R gear) or forward gear (D gear), the automobile vibrates seriously; During driving, when the automatic transmission upshifts or upshifts instantaneously, the car has obvious jerkiness. Troubleshooting: the engine idle speed is too high; Throttle locking or improper adjustment of throttle position sensor leads to high oil pressure in the main oil circuit and late upshift; The pressure adjustment of the main oil circuit is faulty, resulting in high pressure of the main oil circuit; The one-way valve is missing, and the shift actuator (clutch or brake) is combined too fast; The shifting element slips; The oil pressure solenoid valve does not work; There is something wrong with this computer.

6. Engine idling steering: Engine idling steering usually occurs in two situations. One is that the engine suddenly rotates when the vehicle is running smoothly, and the vehicle speed slows down and then returns to normal. This situation generally means that the transmission suddenly drops from high gear to low gear in a short time. The problem may be in the control system or cooling system and the gearbox itself. Secondly, there are short-term skidding and idle steering when accelerating or shifting gears. Intuitively, the latter is not as powerful as the former, but in fact it is just the opposite. Most of the problems of the latter are related to the clutch in the transmission, which requires thorough disassembly and maintenance of the transmission, and consumes much more time and cost than the former.

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