Control device of automatic adjusting height of headlight for vehicle

Abstract

The invention relates to a control device capable of automatically regulating the height of the vehicle head lamp. The control device comprises a road condition detection unit and an actuating unit; wherein, the road condition detection unit comprises an acceleration sensor and a microprocessor connected with the acceleration sensor. The acceleration sensor is capable of sending the relative angle between the acceleration sensor and the gravitational field into the microprocessor to get the incline angle of the vehicle, limiting the height of the vehicle head lamp according to the ex-works regulation and cooperating to drive the actuating unit to regulate the vehicle head lamp, so as to keep the illumination scope and enhance the driving security during night.

Description

technical field [0001] The invention relates to a control device, in particular to a control device which uses an acceleration sensor (GSensor) to obtain the tilt angle of a vehicle, and automatically adjusts the height of the headlight of the vehicle according to the angle of the vehicle body. Background technique [0002] The headlights of the vehicle are mainly used to assist the driver to understand the road conditions in front of the vehicle and the positions of the vehicle in front and the oncoming vehicle. The early vehicle headlights were fixed on the front side of the vehicle and could only shine forward. In this way, When driving at night, it is easy to cause the vehicle body to tilt due to the undulations of the road surface, which will change the range that the headlights can illuminate and affect the driver's front visual range; It is lifted, causing the driver of the vehicle in front to look at the rearview mirror to feel strong glare, thus affecting the driver...

AI Technical Summary

Problems solved by technology

[0002] The headlights of the vehicle are mainly used to assist the driver to understand the road conditions in front of the vehicle and the positions of the vehicle in front and the oncoming vehicle. The early vehicle headlights were fixed on the front side of the vehicle and could only shine forward. In this way, When driving at night, it is easy to cause the vehicle body to tilt due to the undulations of the road surface, which will change the range that the headlights can illuminate and affect the driver's front visual range; It is lifted, causing the driver of the vehicle in front to look at the rearview mirror to feel strong glare, thus affecting the driver of the vehicle in front to observe the rear vehicle conditions through the rearview mirror, especially when the headlight uses a high-intensity discharge lamp (High-Intensity Discharge Lamp) Discharging Lamp, HID Lamp), its impact is even greater

[0003] In order to solve the above problems, some people in the industry proposed a smart headlight controller (China Taiwan Patent Announcement No. 281836 New Patent Case), which mainly consists of a motor, a multi-segment optical static sensor and a control assembly. Connect the headlights to correct the pitch angle between the headlights and the ground. The sensor is installed on the chassis of the vehicle to confirm the vehicle attitude, and the control unit controls and receives the information sent by the sensor to drive The motor performs the headlight control function, wherein: the multi-segment optical static sensor is set under the chassis of the car body, and is equipped with a photointerrupter at each different angle, using a connecting rod and a rotating shaft linked to the chassis of the car body The light-shielding arm in the sensor can be rotated by an angle with the support arm (see Figure 4 of the previous design), and the degree of depression of the vehicle body can be judged according to the order in which the photo-interrupters are blocked. Therefore, the multi-segment optical static sensor is a contact The contact sensor must be connected to the vehicle body, which not only makes the installation of the contact sensor cumbersome, but also in the previous case is exposed to the chassis and is easily damaged by impact

[0004] This shows that the above-mentioned existing headlight controller obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently.

In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general products do not have a suitable structure to solve the above-mentioned problems. This is obviously related. The problem that the industry is eager to solve

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