Safety device for mistakenly stepping on accelerator pedal during braking of electric automobile
By designing a mechanical safety device that includes accelerated pedal, speed adjustment sliding board, brake sliding pipe, and super -speed critical warning switch, it solves the safety of electric vehicles when braking. The working status of brakes and dynamic motors has improved driving safety.
Patent Information
- Application Number
- CN202410896194.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-01-21
AI Technical Summary
When the driver accidentally stepped on the accelerator pedal while braked, the existing electric vehicles lack safety devices that automatically switch to the brake and suspend the working state of the power motor, resulting in an increase in the risk of accidents.
Design a safety device that includes accelerated pedal, speed adjustment sliding board, brake sliding pipe, and speeding critical warning switch. This device uses the mechanical transmission structure to use the accelerated pedal's stepping force transmission to automatically convert to brake and suspend the working state of the power motor.
It effectively avoids accidents caused by the driver accidentally depressing the accelerator pedal when braking, improves driving safety, and enhances the stability of the device through a simple and reasonable structure.
Smart Images
Figure CN119329295A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a safety device which can automatically switch to a braking state and suspend a power motor working state when a driver needs to brake during driving of an electric vehicle due to mistakenly stepping on an accelerator pedal, thereby avoiding accidents. Background Art
[0002] At present, due to a combination of factors, automobile traffic accidents occur frequently, and a part of the accidents are caused by the driver's mistake of stepping on the accelerator pedal at the moment of operating the brake. Currently, electric vehicles do not have a safety device that can automatically switch to the braking state and suspend the working state of the power motor when the driver mistakenly steps on the accelerator pedal. Summary of the invention
[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a safety device for preventing a car driver from accidentally stepping on an accelerator pedal when braking.
[0004] The object of the present invention is achieved in this way. A safety device for accidentally stepping on the accelerator pedal when braking a car comprises an accelerator pedal, a speed regulating sliding plate, a brake sliding tube and an overspeed critical warning switch. The accelerator pedal is connected to a transmission rod, and the transmission rod is connected to a transmission connecting block through a transmission reversing shaft. The speed regulating sliding plate is provided with a connecting hole, a connecting head and a reset spring, and a guide track is provided on the bottom surface. The connecting hole and the connecting head are movably elastically connected. The connecting head is connected to a pull rod through a spring sheet and then extended by a steel wire strip to connect to the insulating strip of the sliding brush of the power motor speed regulating potentiometer originally set in the car. When the reset spring is in a normal state, the connecting hole and the connecting head are set to be synchronously connected to a normal state as a critical state before the car is started. The brake sliding tube A sliding rod is provided inside, one end of the sliding rod and one end of the speed regulating sliding plate are respectively connected to the transmission connecting block of the accelerator pedal transmission rod through a steel wire strip, and the other end of the brake sliding tube is connected to the brake rod originally set in the car through a steel wire strip. The speed regulating sliding plate and the brake sliding tube are equipped with a sliding guide platform and a cavity. The speed regulating sliding plate and the brake sliding tube are respectively slidably installed in the cavity of the guide platform, and an arc spring sheet and an overspeed critical warning switch are fixed on the guide platform. The above-mentioned overall transmission structure is set to set the displacement change stroke of the accelerator pedal under pressure. The state of the car is set in sequence to drive within the maximum speed limit, then enter the overspeed critical warning state, and then enter the critical state before starting and the synchronous braking state.
[0005] The present invention will be specifically described below in conjunction with the accompanying drawings BRIEF DESCRIPTION OF THE DRAWINGS
[0006] Figure 1 The structural exploded view of the speed regulating sliding plate and the brake sliding tube of the present invention
[0007] Figure 2 The transmission device and overall transmission structure principle diagram of the accelerator pedal of the present invention DETAILED DESCRIPTION
[0008] like Figure 1 As shown, the speed regulating sliding plate 1 is provided with a connecting hole 2 and a reset spring 3, and a guide track 4 is provided on the bottom surface. The power motor starting rod 5 is connected with a spring sheet 6, and the end of the spring sheet 6 is connected with a connecting head 7. The connecting head and the connecting hole are elastically connected 8 in a movable manner. One end of the brake sliding tube 9 is provided with an end 11 with a center hole 10, and the other end 12 is connected to the brake rod 13. A sliding rod 14 is provided in the brake sliding tube 9, and one end of the sliding rod is a T-shaped end 15, and the end is connected with a reset spring 16, and the other end of the reset spring is connected to the brake sliding tube end 12. The other end 17 of the sliding rod is slidably installed in the center hole through the center hole 10 of the sliding tube end 11, and the brake sliding tube end 11 is connected with the tube body inner thread 19 by an external thread 18.
[0009] like Figure 2 As shown, an accelerator pedal 20 is provided, and the bottom surface of the accelerator pedal is connected with transmission rods 21 and 22 for transmitting different functions. The transmission rod is connected to the transmission reversing shaft 23 and then extends to the transmission connecting block 24. Figure 1The structure of the speed regulating sliding plate 1 and the brake sliding tube 9 shown in the figure is equipped with a guide platform 25, a guide cavity 26, 27 and a guide platform shell 28. The guide platform is provided with an arc spring sheet 29 and an overspeed critical warning switch 30. The speed regulating sliding plate 1 and the brake sliding tube 9 are respectively slidably installed in the cavities 26 and 27 set in the guide platform. The transmission connection block 24 is connected to one end of the speed regulating sliding plate 1 and the end of the sliding rod 17 of the brake sliding tube 9 through steel wire strips 31 and 32 respectively. The transmission connection block and the guide platform shell are connected with a reset spring 33. The power motor starting rod 5 at the other end of the speed regulating sliding plate 1 is connected to the steel wire strip 34, and then extends through the steel wire strip 34 to connect the end of the insulating strip 36 connected to the sliding brush 35 of the potentiometer set in the vehicle for adjusting the speed and output power of the power motor. The brake rod 13 connected to the brake sliding tube 9 is connected to the brake pulling device set in the vehicle. The above-mentioned overall transmission structure device, the working principle of the transmission is that when the return spring 3 of the speed regulating sliding plate 1 is set to the normal state, the connecting hole 2 and the pull rod connector 7 for regulating the operation of the power motor are connected to the normal state at the same time, as a critical state before the car starts, when the accelerator pedal 20 is pressed and displaced, the sliding rod 14 of the speed regulating sliding plate 1 and the brake sliding tube 9 is pulled to slide through the transmission of the transmission rods 21 and 22. When the speed regulating sliding plate 1 slides, the sliding brush 35 in the potentiometer set in the car for regulating the output power and speed of the power motor is pulled to slide through the connector 7, and the power motor is in the running state. When the speed regulating sliding plate 1 and the connector 7 slide together until the connector 7 touches the arc section of the arc spring sheet 29, the overspeed critical warning switch 30 on the arc spring sheet is pressed upward and closed to send out the warning signal set in the car. At this time, the speed of the car is also set to the critical state of overspeed. At the same time, The T-shaped end 15 of the sliding rod 14 in the brake sliding tube 9 is also set to slide to the edge of the brake sliding tube end 11. When the accelerator pedal 20 is pressed to pull the speed regulating sliding plate 1 and the sliding rod 14 to the above-mentioned stroke section, if the accelerator pedal 20 continues to be pressed, the transmission speed regulating sliding plate continues to slide so that the connecting head 7 touches the bottom of the arc spring sheet 29. The connecting head is separated from the connecting hole 2 by the maximum pushing force set by the arc spring sheet, forming a transmission pulling force on the connecting head and the sliding brush 35 that disappears instantly and returns to the initial normal position, forming a critical state before the vehicle returns to start, and the power motor is also in a suspended working state. After the sliding rod 14 slides to the edge of the end 11 of the brake sliding tube 9, it continues to be pulled and slides, forming the sliding rod pulling the brake sliding tube to slide. While the brake sliding tube slides, it pulls the brake device set in the vehicle, so that the vehicle is in a braking state.
[0010] The present invention is based on the regular difference that when a common car driver accidentally steps on the accelerator pedal when operating the brake, the pedal force exceeds the normal acceleration pedal force. Accordingly, when the action of accidentally stepping on the accelerator pedal during braking exceeds the normal acceleration stroke section, the device can be automatically converted into a safe transmission state of suspending the power motor and braking. The present invention mainly adopts the principle of mechanical transmission structure, thus ensuring the working stability of the device to a large extent, increasing the safety factor of driving, and having a simple and reasonable structure, it can be implemented by adding it to the speed regulation and brake transmission structure of existing electric vehicles.
Claims
1. A safety device for accidentally stepping on an accelerator pedal when braking an electric vehicle, comprising a main pedal, a speed regulating sliding plate, a brake sliding pipe and an overspeed critical warning switch.
2. According to claim 1, the accelerator pedal is connected to the transmission rod, the transmission rod is connected to the transmission reversing shaft and the transmission connecting block, and the transmission connecting block is respectively connected to the speed regulating sliding plate and the brake sliding pipe through steel wires.
3. According to claim 1, the speed regulating sliding plate is provided with a connecting hole and a reset spring, the connecting hole is movably connected to the power motor starting pull rod connecting head, and the normal state of the connection is a critical state before the car starts.
4. According to claim 1, a sliding rod with a T-shaped end is provided in the brake sliding tube, the sliding rod is slidably mounted at one end of the brake sliding tube, and the other end of the brake sliding tube is connected to the brake rod.
5. According to claim 1, the speed regulating sliding plate and the brake sliding tube are equipped with a sliding guide platform and a cavity, the speed regulating sliding plate and the brake sliding tube are respectively slidably installed in the cavity of the guide platform, and an arc-shaped spring sheet and an overspeed critical warning switch are fixed on the guide platform.
6. According to claim 3, the power motor starting pull rod is connected to one end of the insulating strip connected to the sliding brush for regulating the operation of the power motor in the vehicle.