What is the status of the development of automotive bra […]
What is the status of the development of automotive brake inspection stations?
The detection of vehicle braking performance, as one of the most important items in the safety inspection of motor vehicles, has always been the focus of attention of motorists. China's automobile brake performance testing equipment is developed based on the introduction of foreign equipment. Currently, there are various kinds of testing equipment imported from Japan and Western Europe in the equipment used, as well as various types of testing equipment produced by domestic manufacturers. From the product structure can be divided into the Japanese model, Western European model, flat panel and so on. drum brake From the installation can be divided into fixed and vehicle-type mobile. From performance indicators, technical grades can be divided into simple manual, semi-automatic and fully automatic networking.
According to the characteristics of vehicles in use in China, various tonnage and different types of vehicles must be tested with the same (line) inspection equipment. This requires that our testing equipment can adapt to different technical levels, different tonnages, different vehicle conditions, and different Type of car. Therefore, we must develop a corresponding automobile detection model for these situations, such as the semi-automatic detection mode and the coexistence of the manual detection mode and the automatic detection mode, and the coexistence of a fixed detection station with a perfect detection device and a convenient flow detection mode. The situation of China's in-use vehicles and the unbalanced economic development have determined this demand for different grades of testing equipment. Semi-automatic and manual inspection equipment has less investment, simple maintenance, and fast fund recovery, and is suitable for economically underdeveloped areas. China has a vast territory and uneven distribution of vehicles. Large-scale and comprehensively-built fixed inspection stations can be built in cities where vehicles are concentrated. In remote rural areas, it is suitable for flexible and convenient mobile investment testing equipment.
At present, the domestic use of a large number of roller reaction type car brake inspection table, and flat-panel car brake test bench in the past few years have also been gradually adopted in the car line.
Different from the roller reaction type automobile brake test stand. The flatbed brake inspection platform is a dynamic detector that can perform dynamic tests on the four wheels of a car at the same time, and is especially suitable for the detection of modern cars. During the test, the vehicle is driven onto the flat panel at a certain speed and the brake is applied. Then, the braking force and the wheel weight of each round are measured by the measuring mechanism of the sensor. Because the test process of the vehicle on the platform is carried out under dynamic conditions, it can actually reflect the braking performance of the vehicle. In addition, automotive brake a flatbed brake station can also be used to detect the braking performance of a motorcycle.
High-efficiency, compound inspection capabilities: Axle, brake, side-slip, and suspension system data can be obtained with only one foot brake operation. The entire test process takes only 15 seconds to complete.
The flat brake inspection platform tests the trolley. The maximum value of the front axle braking force exceeds 100% due to changes in the center of gravity during braking. The distribution ratio of front-rear braking force of modern automobiles has changed greatly. When the vehicle is braking, the inertia force causes the shaft load to change, the weight advances, the front axle's dynamic axle load increases, and the rear axle axle load decreases. In order to make full use of the front axle load, the braking force on the front axle of the car is now very large, often exceeding the idle static axle load.