CN215860504U

CN215860504U - Variable air volume type automobile speed limiting device

Info

Publication number: CN215860504U
Application number: CN202122143203.4U
Authority: CN
Inventors: 张蕾; 周一; 张晓俊; 昝继薇; 任艺
Original assignee: Tianjin University of Technology and Education China Vocational Training Instructor Training Center
Current assignee: Tianjin University of Technology and Education China Vocational Training Instructor Training Center
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-02-18
Anticipated expiration: 2031-09-07

Abstract

A variable air volume type automobile speed limiting device comprises a power supply, a speed limiting switch, a vehicle speed odometer, a single chip microcomputer, a relay, a speed limiting motor, a speed reducing mechanism, a speed limiting throttle and a display device. The device judges whether the automobile is overspeed or not through the information of the speed limit switch and the speedometer, thereby controlling a speed limit motor and a speed reducing mechanism which are arranged on an air inlet channel of an automobile engine, adjusting the opening of a speed limit throttle valve, reducing the air intake quantity of the engine, reducing the speed of the automobile and avoiding the overspeed of a driver unconsciously. The system has simple structure, convenient installation and low cost, and can be widely applied to various automobiles.

Description

Variable air volume type automobile speed limiting device

Technical Field

The utility model belongs to the field of automobile parts, and particularly relates to an automobile speed limiting device.

Background

Automobiles are common vehicles in daily life, and overspeed driving is the first factor causing traffic accidents. In order to reduce the potential traffic hazard caused by overspeed driving, the driving speed of various roads needs to be limited. However, in the current road traffic speed-limiting measures, only speed-limiting signs are given on roads, the actual driving speed still needs to be manually controlled by drivers, and the drivers can overspeed without paying attention to the speed slightly under the condition of good road conditions, so that driving danger is brought.

Disclosure of Invention

The utility model solves the problem of overcoming the defects of the background technology and provides the variable air volume type automobile speed limiting device, which can set different automobile maximum speeds on different road roads according to the requirements of drivers so as to avoid the drivers from overspeeding unconsciously.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a variable air volume type automobile speed limiting device consists of a power supply part, a detection part, a main control part and an execution part, and comprises a power supply, a speed limiting switch, an automobile speed odometer, a single chip microcomputer, a relay, a speed limiting motor, a speed reducing mechanism, a speed limiting throttle and a display device. The power supply part supplies power to the speed-limiting motor through the storage battery 12V, and simultaneously converts the storage battery 12V into 5V voltage to supply power to the singlechip, the speed-limiting switch and the display device; the detection part consists of a speed limit switch and a vehicle speed odometer and is responsible for detecting the maximum vehicle speed and the actual vehicle speed limited by the vehicle and transmitting signals to the singlechip; the main control part is composed of a singlechip, processes information from a speed limit switch and a speedometer, sends an instruction and controls a speed limit motor to work; the executing part consists of a speed-limiting motor, a speed reducing mechanism and a speed-limiting throttle valve, wherein the speed-limiting motor is arranged in an air inlet channel of the automobile engine, and the speed-limiting motor is connected with the speed-limiting throttle valve through the speed reducing mechanism and is used for adjusting the opening of the speed-limiting throttle valve and reducing the air intake of the engine, so that the automobile speed is reduced. The utility model has the beneficial effects that: according to the requirements of drivers, the maximum speed of the automobile is limited. The system has simple structure, convenient installation and low cost, and can be widely applied to various automobiles.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention.

The system comprises a power supply 1, a singlechip 2, a speed limit switch 3, a speedometer 4, a relay 5, a speed limit motor 6, a speed reducing mechanism 7, a speed limit throttle 8 and a display device 9.

Detailed Description

The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.

A variable air volume type automobile speed limiting device is composed of a power supply part, a detection part, a main control part and an execution part. The power supply part is a power supply 1, the detection part is a speed limit switch 3 and a speedometer 4, the main control part is a singlechip 2, and the execution part is a relay 5, a speed limit motor 6, a speed reducing mechanism 7, a speed limit throttle 8 and a display device 9, as shown in figure 1.

For the power supply part of the variable air volume type automobile speed limiting device, the original vehicle storage battery direct current 12V is used for supplying power for the speed limiting motor 6, and the storage battery direct current 12V is converted into 5V for supplying power for the singlechip 2, the speed limiting switch 3 and the display device 9. The battery 12V is preferably reduced to 5V by the power down chip lm 2576-5.

For the detection part of the air quantity variable type automobile speed limiting device, a speed limiting switch 3 sets a speed limiting value by changing a resistance value, preferably selects a damping potentiometer, sets a speed limiting range at 0-130km/h, and is arranged outside a steering wheel or a central instrument desk. The speed limit switch 3 is simultaneously a starting switch of the device, and the initial position is correspondingly 0 km/h. When the starting switch limits the vehicle speed to be 0-40km/h, the device is not electrified and does not work.

And the speedometer 4 shares the speedometer of the original vehicle, and the real-time speedinformation is obtained through the speedometer of the original vehicle.

For the main control part of the variable air volume type automobile speed limiting device, the singlechip 2 receives the information of the speed limiting switch 3 and the vehicle speed odometer 4, and judges whether the automobile is overspeed or not according to the set speed limiting speed and the actual speed of the automobile, so that the speed limiting motor 6 is controlled to work, and the speed is reduced. Meanwhile, the singlechip 2 controls the display device 9 to display the limited maximum vehicle speed. Preferably, a 32-bit embedded single chip microcomputer is used as a control core.

For the executing part of the variable air volume type automobile speed limiting device, the output signal of the singlechip 2 controls the triode to drive the coil circuit of the relay 5, controls the opening and closing of the contact of the relay 5, thereby switching on or off the 12V power supply 1 of the speed limiting motor 6, controlling the speed limiting motor 6 to adjust the position of the speed limiting throttle valve 8 through the speed reducing mechanism 7 and reducing the air intake volume of the engine.

The reduction mechanism 7 is preferably a gear reduction mechanism.

The speed-limiting throttle valve 8 is arranged in an air inlet channel of the automobile engine, and the air intake quantity is reduced by reducing the sectional area of the air inlet channel of the engine between an air filter and the throttle valve of the original automobile engine. The initial position of the speed-limiting air throttle valve 8 is the full-open position of the speed-limiting air throttle so as not to affect the air intake of the original vehicle engine.

The display device 9 is used for displaying the maximum speed defined by the driver and is arranged on the upper side or the lower side of the speed limit switch 3. The display device 9 is preferably an LCD1602 liquid crystal display module.

The working mode of the variable air volume type automobile speed limiting device is as follows: the driver limits the maximum vehicle speed of the vehicle by means of the speed limit switch 3, while the limited maximum vehicle speed is displayed in the display device 9. When the actual vehicle speed exceeds the speed limit value, the single chip microcomputer 2 controls the speed limit motor 6 through the relay 5 to drive the speed limit throttle valve 8 to rotate through the speed reducing mechanism 7, and the speed limit throttle valve 8 is gradually closed from the fully open position, so that the air intake quantity of the engine is reduced, and the vehicle speed is reduced.

Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that; various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.

Claims

1. A variable air volume type automobile speed limiting device is characterized by comprising a power supply part, a detection part, a main control part and an execution part, wherein the power supply part, the detection part, the main control part and the execution part comprise a power supply, a speed limiting switch, a speed odometer, a single chip microcomputer, a relay, a speed limiting motor, a speed reducing mechanism, a speed limiting throttle and a display device; the power supply part supplies power to the speed-limiting motor through the storage battery 12V, and simultaneously converts the storage battery 12V into 5V voltage to supply power to the singlechip, the speed-limiting switch and the display device; the detection part consists of a speed limit switch and a vehicle speed odometer and is responsible for detecting the maximum vehicle speed and the actual vehicle speed limited by the vehicle and transmitting signals to the singlechip; the main control part is composed of a singlechip, processes information from a speed limit switch and a speedometer, sends an instruction and controls a speed limit motor to work; the executing part consists of a speed-limiting motor, a speed reducing mechanism and a speed-limiting throttle valve, wherein the speed-limiting motor is arranged in an air inlet channel of the automobile engine, and the speed-limiting motor is connected with the speed-limiting throttle valve through the speed reducing mechanism and is used for adjusting the opening of the speed-limiting throttle valve and reducing the air intake of the engine, so that the automobile speed is reduced.

2. The variable air volume type automobile speed limiting device according to claim 1, wherein the speed limiting switch employs a damping potentiometer, and an initial position corresponds to 0 km/h.

3. The variable air volume type automobile speed limiting device according to claim 1, wherein the speed limiting throttle valve is installed inside an air intake passage of an automobile engine, between an air cleaner of an original automobile engine and the throttle valve, and the initial position is a full open position of the speed limiting throttle valve.