Vehicle head lamp light modulating system experimental platform based on three-axis parallel principle
A technology of automobile headlights and experimental platform, which is applied in the field of experimental devices of automobile headlight dimming systems, can solve problems such as difficulty, complex mechanical structure, and poor real-time performance, and achieve uniform angle changes, simple device structure, and drive Easy to control effects
Inactive Publication Date: 2010-01-13
HASCO VISION TECHNOLOGY CO LTD
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Problems solved by technology
[0009] However, the existing Stewart platform mechanism is a complex multi-body system with multiple closed loops. For this complex multi-body system, the modeling process is quite cumbersome, and the amount of control and calculation is very large. Although many experts and scholars have proposed some advanced The control method can achieve better control performance, but it also pays a big price
The main problems of these methods are complex mechanical structure, excessive control calculation, poor real-time performance, high requirements for hardware equipment, and considerable difficulty in realizing online control, which largely restricts the AFS system of various automobile manufacturers. Development and conduct of research and development work
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[0021] The present invention will be further described below in conjunction with the accompanying drawings.
[0022] figure 1 Among them, the experimental platform includes: a lower static platform 1, an upper dynamic platform 8, kinematic chains 2, 3, 4, an intermediate directional guide rail composed of a linear platform 5 and a round rod 6, and a cross universal hinge 7.
[0023] figure 2 Among them, the structure of each kinematic chain is the same, including: linear platform 9, coupling 10, AC servo motor 11, reducer 12, ball hinge connection seats 13 and 17, ball hinges 14 and 16, and execution rod 15.
[0024] to combine figure 1 and figure 2 It can be seen that the three kinematic chains of this experimental platform are arranged in an isosceles triangle on the lower static platform 1, and the ratio of its height to the base is 2.30:1; the linear platform 5 of the middle orientation guide rail is fixed outside the isosceles triangle. center; in each kinematic cha...
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An experimental platform of auto head light dimmer system based on triaxiality parallel mechanism principle belongs to testing device field in auto manufacture. It is composed of upper movable platform, lower static platform, movement executive part, middle directed guide and cross universal ream. It is characterized in that: movement executive part contains three kinematic links of PSS structure. Slide block on linear platform is drove to move by AC machine as slide ream P and the linear platform is fixed on lower static platform. Both ends of executive bar are connected with slide block and upper movable platform by ball ream S separately. Lower end of middle directed guide joints with lower static platform and its upper end connects with upper movable platform by cross universal ream. It applies special three-axis parallel mechanism of triaxiality. The whole device has simple structure, convenient driving device, low cost, high control precision and uniform change of angle between upper movable platform and lower static platform, which can be applied in experimental field of various AFS devices extensively.
Description
technical field [0001] The invention belongs to the field of testing devices in the automobile manufacturing industry, and in particular relates to an experimental device for an automobile headlight dimming system. Background technique [0002] With the development of modern automobile technology and the improvement of people's requirements for the active safety of automobiles, the adaptive front-lighting system (Adaptive Front-lighting System, referred to as AFS) of automobile headlights is gradually being applied. [0003] AFS is an advanced automotive headlight lighting system. With this system, the car can keep the headlight illumination height constant when the load changes or due to acceleration and deceleration and road slope changes; on the other hand, when the car is bending When walking on the road, according to the turning radius and walking speed of the car, the curve ahead can be illuminated as much as possible. Therefore, AFS can automatically adjust and distr...
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IPC IPC(8): G01M11/04G01M11/06
Inventor 刘少鹏魏冰朱明华蒋淳蒋旻昊赵景山董景新赵长德
Owner HASCO VISION TECHNOLOGY CO LTD