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Mainly used for commercial vehicles larger than 6 tons, it uses a large number of electronic devices and crossover data lines. The strength of the system can be used for long distance transport vehicles and long-distance buses, where the application of electronic systems is relatively low. The application of transport railway vehicles or off-highway has also proved to be quite beneficial. The most important requirements of commercial vehicle transmission systems 14 2 Transmission The design transmission is based on a modular speed ratio design, so it can be flexibly arranged in 12 or 16 steps depending on the application and can provide different bus usage ranges. 2 The transmission can adapt to various situations by adding electronic equipment. 1 Economical low combustion consumption , low maintenance costs 10 mouth 13 hours 6 doors 30066, 60865 high. Elegant simple integrated transmission power shortshtfltiming short shift time, when 696 out of 3 and å©83169 intelligent shifting strategy simpteoperation simple operation, head 15 900 high shift comfort highroadsafety quotient road safety main transmission part set The design of the constant mesh transmission is common, with the characteristics of simple structure, high strength and low shifting time. It is very suitable for the operation of trucks before and after such trucks. Only after the inner lining can drive the auxiliary electronic control and network function of the picking system, the shifting is completed by the electronic device, and the refueling clutch is connected and synchronized with the engine speed to complete the operation through the electronic device. This is a good example of the need for the driver to dry up. It shows that the electronics can simplify the mechanical strength and increase the work. The color 3 clearly shows that the designed whistle components are quite simple compared to the synchronizers on other transmissions and they are quite simple. The cold rubbing surface does not come from the wear and tear. The electronic transmission control unit is located with the actuator and the sensor station to form an electromechanical block and is integrated directly into the transmission.
On the other hand, the electronic system has all the interfaces required for the gear shifting system and the clutch actuating unit. Including additional sensors, these sensors are available with peripheral module system gear selection and! The core is unbeaten and the Di is called a sub-connector, and its vehicle system is connected.
3.1 Transmission Actuator The electromechanical transmission actuator block is designed to be a highly integrated discrete component to achieve the compactness and reliability required for commercial vehicles! Compared to the previous method, its independent components are significantly reduced but have more power in the same time. All components, such as electronic control piston valves and sensors, are installed in as small a space as possible in the transmission. The pre-test and integration on the first step are combined into one step, so the installation cost is reduced and the reliability is higher than those of the control system that is superimposed by standard parts. The key to providing cross-over data lines is that only through research can the fire reduce the interface cost to adapt to the usual The electronic device of the electronic module transmission is made of flat technology. By using this technology, a thin layer of plastic is covered on the bottom plate of the aluminum, which contains all the wires and can be used to ensure the heat dissipation. The technology's thermal resistance is 120 ambient and can withstand 308 acceleration, which is suitable for typical transmissions. However, when compared to the hybrid control modules that have been used, it has been shown to better meet the more flexible requirements of existing space and commercial vehicles. To meet the high temperature levels and required reliability, measurements have been made and defined. A special design-based temperature field profile. The temperature sensor on the printed board detects the rise of the temperature. The function of the adjustment system prevents the progress of the 216-bit microcontroller as a control unit equipped with a vocabulary read-only memory set and view Random access memory, 4 two calculations and mutual monitoring, the need to activate the safety function and special safety shift process inherent system redundancy and personnel special features to ensure the system to the benefit of water; 3.3 clutch actuator The module clutch actuator module includes a pneumatic control cylinder and an actuator-only valve and a position sensor for the clutch control piston of the thousand clutch. When a valve or position sensor fails, the clutch actuator 6 can enter the emergency The experience of manipulating the system on a long-distance transport vehicle. When the new system is adopted, we can predict that the service life of the clutch can exceed 700,000 km. The two values ​​of the existing manual transmission system are changed by the high cost of the dry ionizer history, which obviously improves the economical 3.4 display control. And the data line is made up of a selection switch made by 2 and an input selection module. Several interfaces are connected to each other through the bus; this, and then the interface for other systems is open, because some vehicle manufacturers use their own central control unit according to their design and platform concept. Flexibility, because the system can implement a large number of application variables through software without the need to add additional cables or mechanical interfaces to accommodate the cab seal and noise isolation, especially when the truck uses a flip cab, the system and the previous system Compared to having an important advantage 7 the application of the system on a bus has even a decisive advantage, with a distance of approximately 20 meters between the driver's seat and the transmission. 8 shows 243, the simple data line on the transmission and the comparison of the previous production, from the perspective. Reducing the number of data lines and using branchless connections can increase system reliability, especially since the current 23 errors occur within the data line. Busy in the dirty environment of the dirty tile, vehicle function basic function hardware function original equipment manufacturer diagnostic original equipment manufacturer communication transmission control driving strategy, brake control Brake special function Special 4 control plane transmission control power take-off control The main function of the operating system standard software module 4 system function system is 9, which is realized by software. Generally speaking, it can be roughly divided into part 13 is the vehicle function 13 is the basic function 13 is the hardware related function hardware function including all those used The function of completing hardware control and serving the basic system has adopted these functions as platform components and as a low-cost development, it proves that the error-free basic wood function is dispersed as a transmission and can optimize the shifting system. And constantly optimizing the soft start over time and the quick and comfortable shift is the main function of the complex algorithm for controlling the clutch shifting process and the vehicle engine hidden in the function.
The vehicle's function ensures the driving performance of the vehicle that is connected to the transmission system and provides the necessary infrastructure, which varies greatly depending on the vehicle manufacturer. These functions often change, making the vehicle manufacturer remove the standard. In addition to the transmission, it is also suitable for seven games and one user's special requirements. Because of these changes, there is usually no high cost. Good planning and inspection between vehicle manufacturers is a must.
The main play part of the vehicle function is limited by the transmission. And in the same, the seven pairs of systems and their functions are sufficient, that is, if there is no electronic effect on the engine, the shifting usually cannot be normally shifted and taken through, the system completes a large number of data transmission and closed loop components. The control to apply these functions is as plausible as it is to be combined with the special functions of the transmission.
The contribution of the driving strategy function is the dynamic shifting system. Specifically, when driving the 12 or 16-speed transmission, when the power is cut off, it is necessary to hang into several high-end positions. The important parameters such as engine data load data and driving data obtained by other systems are determined by modern computers. Without these prerequisites provided by the system data network, the 12 or 16-speed automatic transmission will not be described and installed. And the failure response accounts for a large part. In addition to taking into account the high level of reliability design of the system, in addition to the failure of the components, the redundant information from the vehicle makes the system network highly maintainable, which prevents the generation of error information. The consequences can even replace these signals.
5 vehicle electronic system interface to the usual cross-type data line transmission, the electronic system interface is the core of vehicle control should be specially required to be on the commercial vehicle. The recognized standard data network 3 people 1939 standard has made great progress in the world, but still There are a variety of details to deal with. In 2 to define the interface range, it has a wide range of applications and has now provided a range of interfaces for modern systems to the extent that we can apply to all vehicles without changing any control hardware.
In addition to the voltage supply 15-pin port and 30-pin port, in addition to having different functions, it can provide a certain redundancy when the data line is interrupted. 2, the sink interface is the main system interface. Usually, it is opposite to the vehicle system, and the other is within the transmission range. The connection locality inside the transmission system can be extended with the display and output of the display and the complete set of electronic products that the vehicle people do not pay attention to. The equipment is connected to each other. In some special cases, especially when the vehicle is equipped with a vehicle-mounted computer, the connection to the system can be reduced. The CAN connection should be designed to accommodate a wide range of data line twists without any hardware changes. Wire cable with multi-grounded twisted-pair cable shielded with capacitor grounded with or without shunt output line with or without end-resistance function matching and application adjustment protocol is done by software, which can be changed by 4 The diagnostic interface defined by the Tingtu 13,9141 standard can ensure the standard diagnosis. On the contrary, the cold break is also passed through, and the common interface can realize a lot of functions. The single input input frequency is input to the bidirectional data boundary. It can be used to provide an additional signal path, or in some special applications, such as the need to account for component failure, as a redundancy signal to increase the utilization of 5V voltage output to supply power to the sensor and 24 voltage output to supply power to external devices. These devices do not meet the entire power supply standard or are incapable of redundancy. The system interface has been standardized, and the application should not be changed without changing the hardware. Progress, in addition to the vehicle CAN system. Applications can be enhanced by using a unique local bus system. 6 System applications As system complexity and networking increase, system applications must accept new challenges as a successful product. The transmission should fully satisfy the handling and service aspects. need. In addition to the application of the standardized computer-aided application system, its auxiliary system must provide all methods to meet the characteristics of those special systems, such as special text and vehicle-integrated FMEA to ensure the interaction between the vehicle and the transmission system. Under certain conditions, unreliable static signal deviation dynamic signal deviation and independent signal in critical state are re-examined to achieve reliable inter-system interaction and provide guarantee for normal operation as part of re-examination, system data is recorded Archive, so that clear access can be obtained at any time, and the analysis of the connection between the signals and the correct signals between the systems on the data bus leads to the continuation of new tools and existing tools. As an added extension of the network, people and application tools will be optimized for 2 and users, the high flexibility of system structure and application is a big advantage, but this requires a square song in the text application service and data cylinder. We have made great efforts to detect it for a long time, and the drought has been carried out. 1. The instrument is suitable for processing control units and structural parameters. As application complexity increases, new data processing systems are being developed with tool vendors and can cover future needs.
7 system development process door development in terms of function and software development, the module, which has been proven effective many years ago and has been adopted in a fixed workflow of related tools, the cabinet 3 external inspectors The evaluation has proven that the system's effective existing simulation and test environment is very suitable for people 3, the actual situation, first. The system network has enhanced the experimental environment and test methods. Secondly, the number of test vehicles developed for the actual test has been reduced. 3 Jiang software closed-loop and Jiang hardware closed-loop 抿 线 线 线 线 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被The routing module control code monitoring function calibration function and the clearing fault function are integrated with each other, and the whole system test can be carried out without using special hardware. It can be extended from an independent situation to the simulation of the entire system in virtual reality. Documents and pre-recorded to their conclusions can also be semi-automatically evaluated. The vehicle is not used frequently during the functional and software development phases, so the tool is of great use in the field of analysis and verification. The LabCaf hardware closed-loop test system is used to simulate and system test real components. Using the same method, the path and monitoring functions enable simulation in complex computer systems. Systems with signal processing cards are used here to obtain accurate real-time conclusions and required electronic aid simulations in addition to the calibration normally used for black box tests. In addition to the functions, the 5, 1 and 1 models have the same function, which can be used for extended automated comparison experiments. With its high level of performance, the perfect path module can be used, some of which can also be used to actually test actual components and applications and/or The measurement system also concludes that the intersection of data lines with scalable system networks and electronic devices will be the direction of commercial vehicle applications, and customers will benefit from this trend, which will expand the generalization of the mountain plant system. Developed with capabilities and other technological advantages to put the transmission system on the market, the transmission system takes these needs into consideration Take advantage of the opportunities for full development with its electronic devices. The extensiveness of the application has been tried and validated and it has been affirmed that the method adopted by the system is characterized by the use of a decentralized structure and a central computer in modern vehicles. this makes. The system is in great advantage. The transmission not only brings a lot of benefits to the user but also has the optimized function of the latent nine in the Yin-Dong transmission. The vehicle and bamboo are developed here. These functions have contributed to the safety of transportation. It is for long-haul freight and long-distance passenger transport that are currently highly strained by drivers. 2 people 3 Ding, the system will make progress on the basis of the current, and will get a very large application of the cooperation between the mouse and the vehicle manufacturer and the new basis and the use of new technology 4 the only way.