Design method of viewing mirror for observing middle door of passenger car and passenger car
A design method and observation mirror technology, applied in the field of vehicles, can solve the problems of high vehicle cost and high cost
Active Publication Date: 2017-12-08
BEIQI FOTON MOTOR CO LTD
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Problems solved by technology
However, the cost of cameras, wiring harnesses and display and control devices is higher, resulting in higher vehicle costs
[0003] Therefore, the prior art has the problem of high cost caused by installing devices such as cameras to observe the situation of the middle door
Method used
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[0047] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0048] In the present invention, in the case of no contrary description, the used orientation words such as "up, down, left and right" usually refer to the up, down, left and right shown in the accompanying drawings; "inside and outside" Refers to the inside and outside of the outline of each part itself.
[0049] Among them, "eye point" refers to the position of the driver's eyes, that is, point E specified in GB 11562-1994.
[0050] According to one aspect of the present invention, there is provided a method for designing a viewing mirror for observing the middle door of a passenger car, the method comprising:
[0051] A1. The observation mirror is set to ha...
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The invention discloses a design method of an observation mirror for observing the middle door of a passenger car, and the passenger car. The design method comprises the following steps: enabling the observation mirror to have the edge contour provided with a mirror surface formed into a shape of a spherical crown and a mirror surface formed into a round shape, wherein the radius of the spherical crown is R, and the radius of the round shape is r, and enabling the observation mirror to be arranged at a mounting position (G) at the front part of the passenger car; setting n incident points on the edge contour of the mirror surface, respectively enabling eye spots to be connected with each incident point so as to obtain incident rays, and respectively enabling the spherical center of the mirror surface to be connected with the incident points so as to obtain normal lines; obtaining reflection rays according to the incident ray and the normal line of each incident point, and confirming the reflection ray zone (RZ) according n reflection rays; adjusting the observation mirror to the mounting position, so that the middle door (2) of the passenger car (1) is positioned in the reflection ray zone. The observation mirror is arranged at the mounting position, so that a driver sitting at the driving position can observe the situation of the middle door through the observation mirror without cameras and the like, so that the efficiency is improved, and the cost can be reduced.
Description
technical field [0001] The invention relates to the field of vehicles, in particular to a design method for an observation mirror for observing a middle door of a passenger car and the passenger car. Background technique [0002] At present, passenger cars, especially city buses, arrange cameras at the middle door position, and the driver observes the passenger getting on and off the bus by directly observing the display screen of the image taken by the display camera on the dashboard. However, the cost of cameras, wiring harnesses, and display and control devices is high, resulting in high vehicle costs. [0003] Therefore, the prior art has the problem of high cost caused by installing devices such as cameras for observing the situation of the middle door. Contents of the invention [0004] The purpose of the present invention is to provide a method for designing a viewing mirror for observing the middle door of a passenger car, so that the situation of the middle door ...
Claims
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IPC IPC(8): B60R1/00
CPCB60R1/008B60R1/04
Inventor 沈艳李维增孙健强
Owner BEIQI FOTON MOTOR CO LTD