Automatic Steel Wire Cutting Machine
Specialized equipment adopted for steel wire straightening, automatic cutting, visual check and molding for automotive seat industry. This efficiency production line is widely applied for manufacturing of the seat back frame. The high-precision camera makes it possible for parameter tracing and helps you quality control. The solutions of automotive seat series also includes seat grid frame assembly and the vehicle seat general assembly line.
Following the global top technology, we insist on independent design innovation, have got more than 50 national patents for inventions and model utility, the CE certificate for technical safety and ISO certificate for quality system management.
Automatic Steel Wire Cutting Machine,Seat Frame Steel Cable Cutting,Steel Wire Production Line,Vehicle Seat Steel Cable Cutting Line Wujiang Jinlan Machinery Manufacture Co.,Ltd , https://www.jinlan-technology.com
WABCO has officially demonstrated its newly developed AMT control system for the new generation of modular automatic transmissions, which is the manual transmission used in the heavy-duty truck HOWO-A7 of China National Heavy Duty Truck (SMARTSHIFT- The core part of AMT). A few days ago, the reporter learned from Sinotruk that the company will use this technology to launch an impact on the commercial vehicle market.
European AMT has taken up half of the country
Different from the automatic transmission (AT), which is composed of a hydraulic torque converter, a planetary gear mechanism, and a hydraulic control system, a commercial vehicle generally uses the AMT method to achieve automatic transmission. This automatic transmission is a mechanical transmission and On the basis of the dry clutch, the electronic control unit controls the operation of the gear selector, gear shift and clutch to realize the automatic control of the vehicle power system. In the European commercial vehicle sector, the first AMT transmissions began to be used in 1986. In 2008, the total number of AMT vehicles has exceeded 50%. In China, although this technology has just emerged, it has been favored by more and more people in the industry. Many domestic transmission companies are actively developing their own AMT products.
The AMT products used by Heavy Truck are WABCO's new modular AMT system developed specifically for the Chinese market. The system consists of three core components: a shift handle integrated with an electronic control unit (ECU) in the cab, a shift actuator mounted on the transmission, and a clutch actuator. Loading the system on a mechanical transmission is equivalent to using an electronic system to replace the artificial shift gears and control clutches to automate shifting.
The modular products used in the Chinese market and WABCO's integrated AMT products for Mercedes-Benz and Volvo, ZF and other companies are essentially no different. Only integrated products, shift actuators and clutch actuators have been integrated into the transmission development stage and become part of its transmission. Modular products can easily cooperate with the existing products of OEMs and transmissions, and do not need to change their existing designs. They can effectively shorten the development cycle, reduce costs, and are more suitable for the current market environment in China.
Performance characteristics determine market space
In terms of actual use effects, AMT has advantages in many aspects compared to ordinary MT manual transmissions and hydraulic transmission AT transmissions. Since the AMT transmission is replaced by a computer to perform shifting and clutching manually, each shifting process is equivalent to an experienced old driver to complete for you and never go wrong.
AMT can shift gears in the optimal speed range to maximize engine performance and increase payload. Statistics show that using AMT can save 3% on average compared to regular MT transmissions. At the same time, AMT also reduces the requirements for the driver's skill level and proficiency, reduces the occurrence of gear shifts and clutch manipulation errors, effectively extends the life of clutches and transmissions and improves operational reliability.
When the driver liberates from the frequent shifting process, the driver can also concentrate on observing the road conditions, respond to emergencies in a timely manner, and improve safety. However, AMT systems are not entirely free of disadvantages. For China's commercial vehicle users, the cost sensitivity is much higher than in Europe, and the cost of several thousand dollars may exceed the user's tolerance. At the same time, the use of trucks in China often encounters the problem of overloaded and overloaded transport, which is a very difficult test for the entire transmission system. In order to save the use of clutches, drivers of many overloaded vehicles do not use clutches when shifting gears. They directly use the engine speed and speed to achieve direct shifting. However, no matter how precise the AMT is, each shift will inevitably cause a clutch. Certain loss.
Therefore, AMT can play its advantages only under normal use conditions. In the face of the current national conditions in China, AMT is able to exert its advantages in passenger vehicles with higher safety requirements and less overload.
View related topics: China heavy truck launches new heavy truck HOWO-A7