Recently, the China Truck Network reporter learned from the relevant departments that the "Technical conditions for the safe operation of motor vehicles," GB7258 regulations to add new content, that is, more than 12 tons of trucks and dangerous goods vehicles will be forced to install retarder, the relevant bill after two rounds The discussion has taken shape and is expected to be implemented by the end of 2010 or early 2011. Retarders may be a little unfamiliar to most domestic truck users. In fact, the use of retarders has become very common in the passenger car sector, especially for some high-end passenger cars. At present, the truck industry in China is still a blank space for retarders. With the promulgation and implementation of new regulations, retarders will gradually enter the truck market. However, what will happen in the future and how the market will respond to what consumers are holding? Attitude, everything is still unknown. Despite the support of national hard laws and regulations, the retarder will face certain difficulties in entering the Chinese truck market. It may take two years to fully enter the market. This is because most truck users have limited purchasing power. At present, a retarder costs about 30,000 yuan, an average truck is 300,000 yuan, and the retarder accounts for one-tenth of the proportion. Therefore, economic factors will become the biggest concern of consumers. In fact, it is necessary to install a retarder. The retarder can effectively shorten the braking distance and braking time to ensure that the vehicle is safer. In a sense, it is even more economical and environmentally friendly. In Europe and the United States, retarders have been widely used and have mature technologies that can be directly introduced into the Chinese market. Recently, regarding the retarder-related issues, the China Truck Network reporter specifically interviewed Wang Xiaobin, manager of the technical department of Tai Lema Automotive Braking Systems Co., Ltd. He said that the retarder produced by Tellema had a eddy current retarder in Europe and the United States. 97% of the market share, Mercedes-Benz, Volvo, Mann several major brands have chosen Taylor Mali retarder as a standard, it can be said that has formed a monopoly situation. At present, Talmar has negotiated cooperation with major truck companies such as China National Heavy Duty Truck, FAW, China FAW, Shaanxi Auto and Foton. Expensive but thrifty retarder Although at the beginning of purchase, retarder will increase the operating cost of truck users, but in the long run, installing retarder will not only increase the cost, but will help users save money. For example, ordinary vehicles need to be replaced once a month, and tires should be replaced every ten months. Vehicles equipped with a retarder greatly save the maintenance and replacement costs of vehicle components. Relevant data show that after the retarder is installed, the shoe replacement cycle can be extended by 6-8 times, the service life of the tire can be extended by 30%, and the service life of the wheel can be extended by 16 times. Manager Wang gave us an astonishing number. Retarders can help users save about 10,000 yuan each year. According to Wang Xiaobin, Tai Lema and FAW have produced a prototype vehicle equipped with Tyrema eddy current retarder, and conducted follow-up survey after users use it. The feedback information obtained shows that the retarder allows the vehicle to run. The process is safer, more comfortable and even more economical. In addition, Talmar modified the trucks of Foton, Dongfeng and Nanjing Iveco to gradually promote retarders. Retarder is an environmentalist Under the environment that promotes environmental protection throughout the world, retarder manufacturers have also increased research and development efforts in lighter products, adjusted product structure, and adopted new materials and technologies. In this regard, Wang Xiaobin told reporters that Taile Ma realized that more than 60% of the products are 30% lighter than similar products. After comparison, Tellomar retarder can save 7% of fuel compared with similar products, minimizing fuel consumption and reducing exhaust emissions. It can be said that the retarder is a green environmentalist while protecting the life safety of the driver wholeheartedly. Retarder family big PK In the European and American countries where the retarder is widely used, eddy current retarder and hydraulic retarder are two mature and extensive technologies. The eddy current retarder is a device that uses electromagnetism to convert the kinetic energy of the car into heat energy to dissipate it, thereby realizing deceleration and braking. The maximum braking torque is 3300 NM. After the power is turned on, the heat is higher due to heat dissipation from the blade to the air. But the brake response is very fast and it only takes 0.02 seconds. For the output speed point, 30km/h can reach the maximum torque, and 10km/h is the effective speed point, that is, when the vehicle speed reaches 10km/h, the retarder can exert more than 85% of the braking effect. It can be said that the speed The coverage is very wide. The hydraulic retarder drives the liquid to rotate by the rotation of the rotor connected to the drive shaft, so that the kinetic energy of the liquid increases, and then the blades on the stator are impacted, causing the loss of kinetic energy and conversion into heat energy, thereby consuming the kinetic energy of the vehicle and braking. effect. Maximum braking torque up to 4000-5000NM, due to the use of engine coolant, it is 20% lighter than eddy current retarder. However, the brake reaction is slow and takes 1 second. The vehicle reaches 40km/h to reach the effective speed point of the retarder. The maximum speed point is 60km/h. That is, the retarder can only be used when the vehicle is driving at high speed. Play a role. In terms of maintenance, hydraulic retarders require professional repairs, which need to be replaced about once a year. This means that consumers will need to continue to invest funds later; compared to this, eddy current retarders seem to be worrying. Many of them can be repaired by ordinary staff and they can be used until the vehicle is scrapped after installation. There is no follow-up consumption. In our random interviews with truckers, most people have expressed no knowledge of the retarder and feel that it is not necessary to spend money to install it. It is even more sensitive to the word “mandatory,†even instinctively disgusted. It is foreseeable that the implementation of the retarder is a long way to go. Today, the relevant national authorities are framing regulations for forced installation of retarders. However, only compulsory measures are insufficient. We hope that more people will understand the retarder, understand the retarder, and be responsible for their own lives.
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