Rearview mirror installation angle of the hottest

2022-08-02
  • Detail

Installation angle of automobile rearview mirror

in addition to the position of the rearview center point of the rearview mirror, the installation angle of the rearview mirror (the included angle between the center normal of the rearview mirror and the forward direction of the automobile) also has a great impact on the field of vision. In this paper, the UG software is used as the graphic support environment, and the rearview mirror is arranged according to the relevant GB and SAE standards. After the rearview mirror installation position is determined, the rearview mirror installation angle on the driver's side is 140 ~ 170, and the rearview mirror installation angle on the driver's side is 250 ---280, all in line with the national standards

visual field safety verification of rear-view mirror

after the installation position of rear-view mirror is preliminarily determined, the visual field safety verification can be carried out according to relevant national standards. Only after many times of modification and verification can the required rear-view mirror layout position be obtained. Next, a small truck (pickup truck) is taken as the object to check the rearview mirror layout

1) determine the driver's eye point: according to the driver's riding position center determined according to the requirements of the vehicle's general layout design, make a plane downward to the vehicle's longitudinal datum plane. Determine the r-point of the driver in the plane, 635 mm vertically upward from the r-point of the driver, and make a straight line section perpendicular to the plane. In the straight section, Goodyear Tire & Rubber Co., Ltd., the largest tire manufacturer in North America, completed a major attempt in early August 2012. Two points are made at 32.5 mm on both sides of the intersection of the plane (the total distance is 65 mm), which is the driver's eye point

2) determine the outline dimension of the rearview mirror

3) determine the field of vision of the rear-view mirror: take a series of points evenly at the edge of the rear-view mirror, and make the lines between the driver's eye points (E1, ER) and this series of points respectively. These lines are the imaginary field of vision of the driver; Make the reflection rays of these straight lines relative to the mirror respectively, and these reflection lines are the imaginary rear field lines of view of the driver. Check whether the rear view meets the regulatory requirements (left and right monocular total view). After safety evaluation, the driver will further deepen the research with the production unit with the help of the left exterior rear-view mirror. He can see a 4.69 m wide field of vision on the underwater road. Its right side and the vehicle longitudinal benchmark. Through this research, the sports function reconstruction plane can be downward, and it is tangent to the outermost point on the left side of the vehicle, And extend from l0m behind the driver's eye point to the horizon; With the help of the right exterior rear-view mirror, the driver can see a field of vision with a width of 5.59 m on the underwater road. Its left side is downward with the vehicle longitudinal reference plane, tangent to the outermost point on the right side of the vehicle, and extends from 20 m behind the driver's eye point to the underground line; With the help of the interior rearview mirror, the driver can see a field of vision with a width of 26 m on the underwater road. Its central plane is the vehicle longitudinal reference plane and extends from 60 m behind the driver's eye point to the underground line, as shown in Figure 6 and Figure 7

determining the position of the rearview mirror is a process of repeated arrangement and verification. If the field of vision meets the requirements after the above calibration, it can ensure that 95% of the drivers can obtain the road traffic information behind the vehicle side by relying on the natural rotation of the head and eyes when driving; If the rearview mirror fails to meet the visual field requirements after the above verification, it can be verified again by adjusting the installation position and angle of the rearview mirror until the rear view meets the requirements. When determining the installation position of the rearview mirror, this paper mainly considers the relevant requirements of laws and regulations and ergonomics, and takes this as the constraint condition. In the actual operation, UG software is used as the graphic support environment to complete the layout and visual field safety personality analysis. The results are shown in Table 1. At the same time, it can theoretically verify that the body design and layout of this new type of vehicle are reasonable and meet the relevant safety regulations of the state for the driver's vision. With the expectation of the rapid development of new vehicles, the requirements for the dramatic period of body development will be shorter and shorter

Copyright © 2011 JIN SHI