阅读说明：本技术 一种三轮摩托车行驶安全系统 (Motor tricycle safety coefficient that traveles ) 是由 石沛林 周龙辉 张亮 蒋军锡 于 2019-03-07 设计创作，主要内容包括：本发明提供了一种检测三轮摩托车行驶状态以及驾驶员状态的方法和系统。其中方法包括检测驾驶员状态信息、检测三轮摩托车行驶状态信息,将信息提供给车辆ECU,从而对当前状态做出判断,自动做出必要的安全举措,保护驾驶员和道路上其他车辆的安全。避免事故和二次事故的发生。(The invention provides a method and a system for detecting the running state of a motor tricycle and the state of a driver. The method comprises the steps of detecting the state information of a driver, detecting the running state information of the motor tricycle, and providing the information to the vehicle ECU, so that the current state is judged, necessary safety measures are automatically made, and the safety of the driver and other vehicles on the road is protected. And accidents and secondary accidents are avoided.)

1. A running safety system for motor tricycle is composed of ECU, Hall rotation speed sensor, ultrasonic sensor, collision sensor, gyroscope, step motor, power switch and power supply.

2. Due to the characteristics of the motor tricycle, when the motor tricycle is subjected to collision and rubbing accidents, the motor tricycle is very easy to incline, destabilize and even overturn, and accidents can cause a driver to be thrown away by the motor tricycle, so that the driver loses control over a vehicle; after an accident occurs, a driver cannot stop the motor tricycle at the first time, if the transmission is not in a neutral gear state, the motor tricycle still can run forwards due to the idling speed of an engine, and in addition, the steering of a tricycle is not controlled due to the collision accident, and the motor tricycle can be in a running but uncontrolled condition at the moment; once this occurs, unpredictable damage to other vehicles and pedestrians in the surroundings, and even secondary damage to the driver, can occur.

3. The running safety system of the motor tricycle detects whether the tricycle is in a rollover state or not through a gyroscope installed on the motor tricycle; detecting whether a driver is normally in a driving position or not through an ultrasonic sensor on the back of the vehicle body; detecting whether the driver can normally control the motor vehicle through the grip; when a driver starts the tricycle by using a key, a system switch is pressed, the system automatically starts to work, firstly, the rotating speed of wheels is sensed by the Hall sensor in the running process, information is transmitted to the ECU, whether the vehicle is still driven or whether the overturned wheels are in an idle state is judged, then, the difference between the value of the ultrasonic distance sensor and the set initial distance is detected, and data are reflected to the ECU; finally, detecting a collision sensor on the handle, and transmitting data of whether the driver normally holds the handle to the ECU; the engine stopping motor is arranged at one side of the oil pipeline, the opening and closing of the oil pipeline are controlled by adopting a ball valve, and the ball valve is driven to rotate by adopting a method of controlling the rotation of the stepping motor, so that the function of opening and closing the oil pipeline is realized.

4. When the ECU judges that an accident occurs, the motor rotates to enable the ball switch to rotate, so that the oil delivery pipe is blocked, and the engine is stopped.

5. The engine is stopped, so that the force for blocking the movement is applied to the transmission, the motor tricycle is forced to stop, and the harm to surrounding traffic caused by the fact that the tricycle is in a high-gear idle-speed unmanned state without being controlled by a driver is avoided.

6. A motor tricycle driving safety system as claimed in claim 1 wherein the gyroscope is located near the centre of mass of the motor tricycle to more accurately reflect changes in body angle of the motor tricycle.

7. The motor tricycle running safety system of claim 1, wherein the collision sensor is disposed under a driver's grip, a deep groove is disposed in the middle of the grip, the collision sensor is disposed in the groove, and a signal generated by the collision sensor is pressed down by applying a pressure applied to the sensor by the grip of the driver during running to determine whether the driver is in the grip state; the deep groove is covered by soft leather, so that the driving comfort of a driver is ensured; a metal strip is arranged on the side surface of the collision sensor, and a switch on the collision sensor is pressed by utilizing the lever principle; the contact part of the metal strip and the leather is provided with a small wheel to reduce the friction resistance, so that the driver can save labor as much as possible when pressing the sensor, and the fatigue is reduced.

8. A motor tricycle driving safety system according to claim 1, wherein the ultrasonic sensor is disposed on the back of the driver's seat and directed toward the driver, and the distance from the driver is calculated by the conduction time of the sound as a condition for verifying that the driver is in the driver's seat.

9. A motor tricycle running safety system as claimed in claim 1, the switch and reset switch being located on the driver panel of the motor tricycle to facilitate the driver to turn the device on or off and reset it.

10. A motor tricycle running safety system as claimed in claim 1, wherein a hall speed sensor is mounted on the rear axle of the motor tricycle to detect whether the wheels are rotating and feed back the signal to the ECU.

Technical Field

The invention relates to a device for detecting the state of a driver by using a sensor and emergently stopping a motor vehicle after an accident, belonging to the field of automatic control.

Background

Due to the characteristics of the motor tricycle, when collision and rubbing accidents happen to the tricycle, the tricycle is very easy to incline and destabilize and even turn over, and accidents can cause a driver to be thrown away by the motor tricycle, so that the driver loses control over the tricycle. After an accident occurs, a driver cannot stop the motor tricycle at the first time, because the vehicle is still in a gear at the moment, the motor tricycle still runs forwards due to the idling speed of an engine, and in addition, the steering of the tricycle is not controlled due to the collision accident, the motor tricycle can run forwards but is not controlled, and the serious damage is caused to surrounding traffic; in 2018, when a catastrophe happens, the motor tricycle collides with a sedan car, so that a driver and people in a car hopper are thrown out of a driving seat, and then the motor tricycle continues to turn to run due to idling, so that the driver is rolled under the unmanned state of the motor tricycle.

Disclosure of Invention

The present invention aims to solve the above problems. The motor tricycle driving safety system is mainly used for monitoring the driving state and the driver state of the motor tricycle when the motor tricycle drives in a road and automatically and safely stopping the motor tricycle after an accident occurs; the device comprises an ECU, a Hall rotating speed sensor, an ultrasonic sensor, a collision sensor, a gyroscope, a stepping motor, a power switch and a power supply; due to the characteristics of the motor tricycle, when a collision and rubbing accident occurs to the tricycle, the tricycle is very easy to incline, destabilize and even overturn, and the accident can cause a driver to be thrown away by the motor tricycle, so that the driver loses control over the tricycle; after an accident occurs, a driver cannot stop the motor tricycle at the first time, at the moment, the motor tricycle still can run forwards due to the idling of an engine, and the steering of a tricycle is not controlled due to the collision accident, at the moment, the motor tricycle can run but is not controlled, once the situation occurs, other vehicles and pedestrians which normally run around can be subjected to unpredictable injury, and even secondary injury can be caused to the driver; the motor tricycle safety system detects whether a tricycle is in a rollover state or not through a gyroscope installed on the motor tricycle; detecting whether a driver is normally in a driving position or not through an ultrasonic sensor on the back of the vehicle body; detecting whether the driver can normally control the motor vehicle through the grip; when a driver starts the tricycle by using a key, a system switch is pressed, the system automatically starts to work, firstly, the rotating speed of wheels is sensed by the Hall sensor in the running process, information is transmitted to the ECU, whether the vehicle is still driven or whether the overturned wheels are in an idle state is judged, then, the difference between the value of the ultrasonic distance sensor and the set initial distance is detected, and data are reflected to the ECU; finally, detecting a collision sensor on the handle, and transmitting data of whether the driver normally holds the handle to the ECU; the engine stopping motor is arranged at one side of the oil pipeline, the opening and closing of the oil pipeline are controlled by adopting a ball valve, and the ball valve is driven to rotate by adopting a method of controlling the rotation of the stepping motor, so that the function of opening and closing the oil pipeline is realized. When the ECU judges that an accident occurs, the motor rotates to enable the ball switch to rotate, so that the oil delivery pipe is blocked, and the engine is stopped. The engine is stopped, so that the force for blocking the movement is applied to the transmission, the motor tricycle is forced to stop, and the harm to surrounding traffic caused by the fact that the tricycle is in a high-gear idle-speed unmanned state without being controlled by a driver is avoided.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a work flow specification

FIG. 2 is a view illustrating the structure of the grip device

FIG. 3 is a schematic view of an ultrasonic sensor mounted on a seat

FIG. 4 is a schematic view of a stepping motor and a ball valve

FIG. 5 is a schematic view of the position of a motor tricycle and a gyroscope

1. Accelerator handle 2, leather 3, collision sensor 4, ultrasonic sensor 5, Hall rotation speed sensor 6, gear 7, main reducer 8, tire 9, stepping motor 10, coupler 11, spring fixing lock 12, pipeline fixing piece 13, gyroscope 14 and ECU

Detailed Description

The invention will be further explained with reference to the drawings

A running safety system of a motor tricycle is mainly used for monitoring running states and driver states of the motor tricycle when the motor tricycle runs in a road and automatically and safely stops using vehicles after accidents occur, and comprises an accelerator handle 1, leather 2, a collision sensor 3, an ultrasonic sensor 4, a Hall rotating speed sensor 5, a gear 6, a main speed reducer 7, tires 8, a stepping motor 9, a coupler 10, a spring fixing lock 11, a pipeline fixing piece 12, a gyroscope 13 and an ECU 14.

The throttle handle 1 is provided with a deep groove for placing the collision sensor 3, one side of the collision sensor is provided with a metal strip fixed by a screw, and a lever is formed by bending, so that a collision switch can be pressed in a labor-saving manner; the upper end of the metal strip is provided with the metal roller to reduce the friction between the leather and the metal strip and ensure more comfortable pressing; leather 2 is attached to the deep groove to serve as a covering, and discomfort of a driver is reduced.

The ultrasonic sensor 4 is arranged at the position below the driver seat; the distance between the back of a driver and the back of the seat is changed frequently due to the action of the driver in the driving process, and the sensor is arranged at the position below the seat, so that the change can be effectively reduced, and the position information of the driver can be fed back more clearly by the detection distance.

The Hall rotation speed sensor 5 is arranged on the rear shaft of the motor tricycle, and the rotation speed of the wheel is detected through a gear 6 arranged on the shaft.

The stepping motor 9 is controlled by an L298N motor driving module and is powered by a storage battery of the motor tricycle; the motor is connected with the ball valve through a coupling 10, the ball valve rod and the valve body are provided with through holes, and the valve body is provided with a groove at the height of the through holes; a spring and two metal keys are arranged in a valve rod of the ball valve, and the two keys are bounced to a groove of the valve body by utilizing the elastic force of the spring so as to clamp the valve rod. When the valve rod is disassembled, the valve shaft can be disassembled only by rotating the valve rod to a specific position and pressing the two keys back by the thin rod; the two ends of the valve are provided with claw-shaped pipeline fixing pieces 12, and when the pipeline is connected, the fixing pieces are tightened by a binding belt, so that the pipeline can be fixed.

The specific working process of the system is as follows: when the motor tricycle is not in operation, a switch on the front panel of a driver is turned on, and the system starts to work. The driver starts driving the motor tricycle forward and the hall sensor 5 at the rear axle detects the rotational speed of the vehicle. At this time, the gyroscope 13 located in the middle of the motor tricycle detects the inclination angle of the vehicle body and feeds a signal indicating whether the vehicle turns on its side back to the ECU 14. If the vehicle is detected to turn over at the moment, which indicates that an accident has occurred, the ECU14 immediately controls the rotation angle of the stepping motor, closes the ball valve, cuts off the oil delivery pipe and forces the engine to stop. If the gyroscope 13 detects that the vehicle is not turning over, the ultrasonic sensor 4 behind the seat is detected, the sensor transmits distance information to the ECU14, and if the detected distance is longer, the driver does not block the body, and the collision sensor 3 on the accelerator grip 1 is detected. When the collision sensor 3 is pressed, the system does not interfere with the vehicle traveling, considering that the driver finely adjusts the vehicle position using the vehicle power. If the ultrasonic sensor 4 detects that the distance is longer, the collision sensor is not pressed, the fact that the driver loses control over the vehicle is shown, the vehicle is still running, and at the moment, the ECU14 immediately controls the stepping motor 9 to rotate the valve to stop the vehicle; when the ultrasonic sensor 4 detects that the distance is in the normal range, the collision sensor 3 on the accelerator grip 1 is detected. If the collision sensor 3 is pressed normally, it indicates that the driver is driving the vehicle normally, and the system does not interfere with the driving of the vehicle. If the collision sensor 3 is not pressed down, the driver is indicated to have an accident and can not drive the vehicle normally, and the ECU14 sends an instruction to the stepping motor 9 to close the oil delivery pipe valve. The driving panel is provided with a reset switch. After the accident is controlled, the driver can use the reset switch to control the reset of the stepping motor, so that the driver can normally drive again.