Prior to the deployment of the 2014 work, Li Shengqi, Secretary General of the China Gear Professional Association and Secretary-General of the China Automotive Automatic Transmission Innovation Alliance, specifically reviewed the development of the Chinese automotive transmission market in 2013.
After a thorough review, Li Shengqi found that China's automobile transmission products showed a significant "three trends" development trend: "Mainstream transmission companies have applied aluminum alloy or magnesium alloy shells in order to achieve lightweight transmission; passenger car companies generally apply 6 block Transmission, commercial vehicle companies have applied 6-speed, 9-speed, 10-speed, 12-speed, 16-speed transmissions in order to achieve transmission multi-block; independent brand auto transmission companies have increased the reliability of key components, durability and change Block quality, reduce assembly noise, and actively strengthen cooperation with vehicle companies, change the relationship between zero (whole vehicle companies and parts and components companies), in order to realize the industrialization of automatic transmissions of self-owned brands at an early date.†“Threeizations†(Lightweight The development trend of multi-blocking and self-branded automotive automatic transmission industrialization is the result of multiple pressures such as energy conservation and emission reduction, environmental constraints, and product upgrades.
Under the trend of "three changes," the highlights of the domestic transmission industry have emerged.
The independently-developed continuously variable automatic transmissions (CVTs) independently developed by Hunan Jiangrong Rongda Vehicle Transmission Co., Ltd. and Chery Automobile Co., Ltd. were put on the market, pending market further tests.
The electronically controlled mechanical automatic transmission (AMT) independently developed by Tianjin Zhongde Transmission Co., Ltd. and Qijiang Gear Transmission Co., Ltd. was equipped in batch with hybrid city buses and buses, and the market performed well.
Shengrui Transmission Co., Ltd. 8AT (8-speed hydraulic automatic transmission) equipped with Jiangling Landwind X5 sports utility vehicle (SUV), officially unveiled at the 2013 Guangzhou Auto Show, is about to achieve industrialization.
The mass production of the dual-clutch automatic transmission (DCT) of Shanghai Automotive Co., Ltd.'s Automotive Gear Plant is pending further tests in the market.
The development of the rear transverse angle transmission transmission for medium and light buses has made gratifying progress. The angle transmission is an angle transmission with a transverse mounting of a new type of passenger car engine. It is a three-axis, fixed-shaft transmission, five-speed transmission with five forward gears and one reverse gear.
The development difficulties of angular transmissions are to reduce assembly noise and improve structural arrangement.
The angular transmission transmission developed by Chongqing Grente Transmission Co., Ltd. has a unique and compact structure, which fills the gap in the transaxle transmission market of domestic medium- and light-duty passenger cars, and is the best choice for the upgrading of medium- and light-duty passenger cars. Its main features are as follows: Equipped with all steel structure lock ring synchronizer, strong reliability; double flexible shaft remote control, light, flexible, reliable shift; engine directly vertical installation; test test assembly noise is lower than 85 dB Transmission torque 400Nm to 700Nm, suitable for passenger cars from 6m to 8m.
The double power full synchronizer transmission developed by Chongqing Grente Transmission Co., Ltd. is composed of a five-speed main transmission and dual power heads. It has five forward gears and one reverse gear and is the best choice for the hybrid parallel structure of urban buses. It has the following features: The main transmission is a full synchronizer structure, single lever "double H" operation, shift light, flexible and reliable; dual power head power conversion by synchronous pneumatic, smooth, reliable, low noise; suitable for urban public transportation Power bus (fuel and motor dual power) and urban bus hybrid parallel combination bus; dual power can be operated independently or in combination; it can also generate power and energy to extend the “endurance†time; parallel combination can make up the series combination Defects, to play a dual power advantage; In the vehicle layout, the motor is a "T" type installation, easy operation and easy maintenance; double power transmission to the city bus passenger gas emissions minimum.
With integrated AMT technology, the angular transmission and dual power transmission are more convenient to operate, and the vehicle fuel economy is better.
Tianjin Tianhai Synchronization Technology Co., Ltd. independently developed self-energizing synchronizer and servo synchronizer. The structure of these two synchronizers is a great leap forward on the basis of the original lock-ring synchronizer, and they can reduce the force acting on the shift handle by 30% under the same synchronous torque conditions. In other words, under the same shift force conditions, they can increase the synchronous torque (synchronizer performance) by 30%, thereby reducing shift time, reducing power interruption time, and improving fuel economy. They can significantly improve the shift performance of MT (manual transmission), AMT, and DCT.
Vehicle safety is increasingly important. Tianhai Synchro Technology Co., Ltd. independently developed mechanical anti-skid differentials are cylindrical gear type and friction type two, help to improve the safety of the car ride.
When one side of the vehicle is driving on icy or muddy roads, the side of the car equipped with an ordinary differential will slip, swing or slip sideways, and may not even move forward. Vehicles equipped with a mechanical slip differential can solve these problems and also ensure that the entire vehicle is free from difficulties.
In the case of tail swing or side slip, the mechanical slip differential is changed by internal friction plates or spur gears, and the power of the engine is effectively transmitted to the tire with a large adhesion force, thereby increasing the driving force of the entire vehicle; The common differential transmits the power of the engine to the skid side tires, causing the vehicle to have no driving force.
At present, the use of electronic differentials in developed countries is costly. The mechanical anti-skid differential has low cost and is especially suitable for domestic A-class vehicles.
Li Shengqi shouted: "The complexity and workload of automatic transmissions in vehicle calibration and matching are far from being comparable to manual variables. If there is no close cooperation between the vehicle companies and systematic participation in the whole process, the industrialization of automatic transmissions for self-owned brands will be almost impossible. It is possible that the industrialization of automobile automatic transmissions in developed countries depends on the in-depth cooperation between vehicle manufacturers and transmission enterprises. The industrialization of auto transmissions in China also requires deep and pragmatic cooperation between vehicle manufacturers and transmission enterprises.
Our company is a professional manufacturer and exporter of a variety of handicrafts. Our company has been highly commented and trusted by the worldwide business partners for the diversity and high quality of our distinctive products in the past years.
The main material of our metal digital clock is Metal+ABS+electronic components. It is without battery. Metal digital clock is with adapter supported. The time is much preciser and very easy to read. The metal digital desk clock is very popular in the young people and gadget lovers.
Our business principle is "quality good, favorable price, timely delivery and top service".
Metal Digital Clock,Digital Clock Desktop,Modern Metal Digital Clock,Clock Silver
Guangzhou Huan Yu Clocking Technologies Co., Ltd. , https://www.mk-times.com