The “Technical Conditions for the Operation of Motor Vehicles†(GB7258) has been revised for many years and is finally expected to be promulgated and implemented in 2011. The retarder, as an auxiliary brake device, has entered China for more than 10 years. At present, retarders are mainly used in large passenger vehicles. The truck market is not yet accepted. The implementation of new motor vehicle safety standards can promote the popularity of retarders in the heavy truck market. From the survey, the prospects are not very optimistic. The device also faces many obstacles. Balance Valve,Automatic Balancing Valve,Pressure Balance Valve,Flow Balancing Valve Wuzhong Instrument Co., Ltd. , http://www.wzivalve.com
How big is the opportunity for retarder
Does the national standard require trucks to install retarders? This is undoubtedly the topic of concern to retarders at the moment. From the point of view of the policy itself, trucks and dangerous goods vehicles with a capacity of more than 12 tons will be forced to install retarders or other auxiliary braking devices. This means that, in addition to the retarder, it is also possible to install other auxiliary brakes.
It is understood that the national standard will generally only require the performance of the car, and it will not require any specific device. The retarder is only a device that achieves the auxiliary braking effect. In addition to the retarder, the vehicle-assisted brake device also includes an engine exhaust brake. Some industry experts believe that the braking force of engine exhaust brake is much smaller than the retarder, and it cannot meet the requirements of GB12676 regulations for vehicle braking. At present, retarder is the most ideal truck-assisted brake device. Once the new standard is promulgated, it will help the retarder become the standard configuration of the truck.
The person in charge of the retarder company said: “With the promotion of policies, China's retarder market will usher in blowout, because the heavy truck market is much larger than the passenger car market.†But even if national standards mandate trucks to install retarders, How effective is also difficult to determine. For example, ABS, the national standard has required mandatory installation for many years, there are still many trucks are not installed, or installed after the inspection of the car and then removed. The high cost of installing the retarder, increasing the vehicle weight, and high failure rate are three factors that hinder the truck market from accepting the retarder. 
How is the market competition trend
In any case, the policy has released good news and the opportunities for the development of the truck retarder market must be seized. This is the common wish of all retarder companies.
As the inventor of the world's retarder and eddy current retarder, Tellema is concentrating on developing the truck retarder market. According to Tellomar Automotive Braking System (Shanghai) Co., Ltd., “The Talemar truck retarder technology is very mature and has been used abroad for many years. Now the products are well planned. The factory specializing in the production of truck retarders is under construction. It is expected to be completed and put into operation in 2012. Currently, heavy-duty truck companies such as FAW, CNHTC and Beiben are testing the retarder loading.â€
At the Tianjin Bus Show held in March 2011, Voith Turbo Drive Technology Systems (Shanghai) Co., Ltd. demonstrated its flagship product, the Maxima Hydraulic Retarder. At present, Voith retarder has already occupied a place in the domestic high-end passenger car market, and will strive to march into the truck field in the future. It is reported that in order to seize the truck market, Voith Truck Retarder is priced about 40% lower than the bus retarder.
Shenzhen Terjia Technology Co., Ltd., the largest retarder company in its own brand, is also actively conducting market research and is actively engaged with the vehicle manufacturers for technology connection. Shaanxi Fast, the largest truck transmission company in China, has been working on retarder R&D and production for two years. The retarder is a key product of Fast during the “Twelfth Five Year Plan†period and has been successfully developed. Under construction.
From the active preparation of the retarder companies, it can be seen that once the truck retarder market starts, it will surely face fierce market competition. At present, the leading position of Tai Lema and Terjia in the domestic retarder market will be challenged.
Analysts pointed out that truck mounted retarders have three positions on the transmission, drive axle, or driveshaft. Mounting on the transaxle and driveshaft requires a lot of changes to the layout of the truck chassis and the smallest changes to be installed on the transmission, so truck companies generally want to mount the retarder on the transmission. China's heavy-duty truck transmission market, Fast's share of up to 90%, Fast can open the technical interface to other retarder companies, will become the key to determine the truck retarder market competition.
At present, the interface between Tellomar retarder and Fast Transmission is already well-established, and Taylor does not worry about direct competition with Fast, because Faster's retarder will take some time from R&D to mass production. 
Eddy current or hydraulic force
The retarder is divided into two types: eddy current and hydraulic force. Which kind of retarder can prevail for the upcoming truck retarder market?
Judging from the current situation, Talmar and Tirca are mainly pushing eddy current retarders, and Voith and Fast are mainly pushing hydraulic retarders. According to reports, the eddy current retarder has been eliminated in Europe. The performance of the hydraulic retarder is stable and its volume is small, which represents the development direction of the retarder.
The eddy current retarder has a simple structure and is easily combined with a manual transmission. The hydraulic retarder is suitable for combination with an automatic transmission and is controlled uniformly. Now, a hydraulic retarder built into an automatic transmission is a trend. The increasing use of hydraulic retarders in European trucks is combined with the gradual increase in the use of automatic transmissions. Chinese trucks currently use manual transmissions, so matching eddy-current retarders are best suited.
In addition, the cost of promotion of retarder cannot be ignored. Eddy current retarders are less expensive than hydraulic retarders and may be more easily accepted by truck users. However, some people complained about the high failure rate of eddy current retarder. It is conceivable that in the truck retarder market in the coming years, the confrontation between eddy current retarder and hydraulic retarder will be inevitable. 