CN217022781U

CN217022781U - Novel electric vehicle starting circuit

Info

Publication number: CN217022781U
Application number: CN202220820972.5U
Authority: CN
Inventors: 陈易廷; 程蜀凌
Original assignee: NANJING SANYE GOLDEN EAGLE MOTORCYCLE CO Ltd
Current assignee: NANJING SANYE GOLDEN EAGLE MOTORCYCLE CO Ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-07-22
Anticipated expiration: 2032-04-11

Abstract

The utility model discloses a novel starting circuit of an electric vehicle, which comprises a single-support power-off switch K4, a P-gear switch K5, a power supply, an electric door lock K1, a converter, a left brake switch K2, a right brake switch K3, a controller and a speed-regulating rotating handle, wherein the positive electrode of the power supply is electrically connected with the electric door lock K1, the electric door lock K1 is electrically connected with the input end of the converter and the controller respectively, the output end of the converter is electrically connected with one end of the left brake switch K2 and one end of the right brake switch K3 simultaneously, the other ends of the left brake switch K2 and the right brake switch K3 are electrically connected with the controller, one ends of a single-support power-off switch K4 and a P-gear switch K5 are electrically connected with the controller, the other ends of the single-support power-off switch K4 and the P-gear switch K5 are electrically connected with the negative electrode of the power supply, the speed-regulating rotating handle is electrically connected with the controller, and the controller is electrically connected with a brushless DC motor. Compared with the prior art, the utility model has the advantages of one more brake starting step and higher safety.

Description

Novel electric vehicle starting circuit

Technical Field

The utility model belongs to the electric vehicle neighborhood, and particularly relates to a novel electric vehicle starting circuit.

Background

The starting mode of the electric vehicle starting circuit in the existing market is 2 steps of vehicle starting, and the 1 st step is as follows: the user opens the electric door lock, step 2: when the single support is opened by a foot, the single support switch is powered off, the P-gear switch is pressed down, the P-gear switch is switched off, the speed regulation handle is rotated, and the vehicle can normally ride. The starting mode is low in safety and easy to cause misoperation, namely, the condition that the vehicle suddenly runs due to the fact that the handle is inadvertently rotated when the P-gear switch is pressed down is not carelessly, and personal safety is affected.

Therefore, it is necessary to design a starting circuit of an electric vehicle that requires 3-step operation to start the vehicle, thereby improving safety.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a novel electric vehicle starting circuit aiming at the defects of the prior art, and the starting mode of the novel electric vehicle starting circuit is that a vehicle is started by 3 steps of actions, so that the safety is higher.

In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a novel electric motor car starting circuit, includes that singly props outage switch K4, P shelves switch K5, power, electric door lock K1, converter, left brake switch K2, right brake switch K3, controller and speed governing are changeed the handle, the positive pole and the electric door lock K1 one end electricity of power are connected, the electric door lock K1 other end is connected with the input and the controller electricity of converter respectively, the output of converter is connected with left brake switch K2 and right brake switch K3's one end electricity simultaneously, left side brake switch K2 and right brake switch K3's the other end all is connected with the controller electricity, singly prop outage switch K4 and P shelves switch K5's one end and all be connected with the controller electricity, singly prop outage switch K4 and P shelves switch K5's the other end and all be connected with the negative pole electricity of power, the speed governing is changeed the handle and is connected with the controller electricity, the controller is connected with the brushless DC motor electricity.

As a further improved technical scheme of the utility model, the power supply adopts a 60V lithium battery.

As a further improved technical scheme of the utility model, the converter is a 60V to 12V power converter, the input end of the converter is 60V, and the output end of the converter is 12V.

As a further improved technical scheme of the utility model, the controller comprises a voltage reduction circuit, a motor driving circuit and a control circuit, the other end of the electric door lock K1 is respectively and electrically connected with the input end of the voltage reduction circuit and the motor driving circuit, the output end of the voltage reduction circuit is respectively and electrically connected with the control circuit and the speed regulation rotating handle so as to provide 5V voltage for the control circuit and the speed regulation rotating handle, the motor driving circuit is electrically connected with 3 motor phase lines of the direct current brushless motor, and the control circuit is electrically connected with 5 motor Hall lines of the direct current brushless motor.

As a further improved technical scheme of the utility model, the control circuit adopts a chip STM32F 051.

The utility model has the beneficial effects that:

the starting mode of the starting circuit of the electric vehicle needs 3 steps of actions to start the vehicle, and compared with the prior art, the starting circuit of the electric vehicle has the advantages that one more step of braking is added, and the starting circuit of the electric vehicle is safer and more reliable. The left brake switch K2 is installed in a brake valve linked with a left brake handle, when the left brake handle is pressed, the left brake switch K2 can be automatically linked, the left brake switch K2 can send a signal to a controller, and similarly, the right brake switch K3 is installed in the brake valve linked with a right brake handle, when the right brake handle is pressed, the right brake switch K3 can be automatically linked, and the right brake switch K3 can send a signal to the controller.

The 3-step motion starting vehicle specifically comprises the following steps:

step 1: the user opens the electric door lock K1, the 60V lithium battery is communicated with the converter and the controller, and power is supplied to the internal circuit of the controller; step 2: when a foot is used for starting the single support, the single support power-off switch K4 is powered off, the P-gear switch K5 is pressed, the P-gear switch K5 is switched off, and the controller can receive a power-off signal of the single support switch K4 and a switching-off signal of the P-gear switch K5; and 3, step 3: and then, the left brake handle or the right brake handle is pinched, the left brake switch K2 or the right car brushing switch K3 is linked, the left brake switch K2 or the right car brushing switch K3 sends a signal to the controller, the speed regulation handle is rotated, the speed regulation handle sends a signal to the controller, the 3 steps are completed, the controller can control the action of the direct current brushless motor, and the vehicle can normally ride.

Drawings

Fig. 1 is a schematic circuit diagram of the present invention.

Detailed Description

The following further description of embodiments of the utility model is made with reference to the accompanying drawings:

as shown in fig. 1, a novel starting circuit of an electric vehicle comprises a single-support power-off switch K4, a P-shift switch K5, a power supply C, an electric door lock K1, a converter D, a left brake switch K2, a right brake switch K3, a controller E and a speed-regulating rotating handle F, wherein the positive electrode of the power supply C is electrically connected with one end of the electric door lock K1, the other end of the electric door lock K1 is electrically connected with the input end of the converter D and the controller E respectively, the output end of the converter D is electrically connected with one ends of the left brake switch K2 and the right brake switch K3, the other ends of the left brake switch K2 and the right brake switch K3 are electrically connected with the controller E, one ends of the single-support power-off switch K4 and the P-shift switch K5 are electrically connected with the controller E, the other ends of the single-support power-off switch K4 and the P-shift switch K5 are electrically connected with the negative electrode of the power supply C, and the speed-regulating rotating handle F is electrically connected with the controller E, and the controller E is electrically connected with the direct current brushless motor G.

In this embodiment, the power supply C is a 60V lithium battery.

In this embodiment, the converter D is a 60V to 12V power converter for an existing electric vehicle, and the input end of the converter D is 60V and the output end is 12V.

In this embodiment, the controller E includes step-down circuit, motor drive circuit and control circuit, the electric door lock K1 other end is connected with step-down circuit's input and motor drive circuit electricity respectively, step-down circuit's output and control circuit and speed governing are changeed F electricity and are then connected and then change F for control circuit and speed governing and provide the 5V power, motor drive circuit is connected with 3 motor phase lines a of dc brushless motor G electricity, control circuit is connected with 5 motor hall lines B of dc brushless motor G electricity.

The 60V lithium battery directly supplies power for the motor driving circuit, and the motor driving circuit converts a 60V direct-current power supply into a 60V alternating-current circuit to drive the direct-current brushless motor G. The motor driving circuit of the embodiment adopts a motor driving circuit commonly used in the existing electric vehicle, and is not discussed herein.

In this embodiment, as shown in fig. 1, the control circuit adopts a chip STM32F051, wherein one end of each of the left brake switch K2 and the right brake switch K3 is electrically connected to a pin 41 of the chip STM32F051 in the control circuit, one end of each of the single-support power-off switch K4 and the P-stage switch K5 is electrically connected to a pin 2 of the chip STM32F051 in the control circuit, a handle 5V power pin of the speed-regulating handle F is electrically connected to an output end of the voltage-reducing circuit, a handle signal line of the speed-regulating handle F is electrically connected to a pin 13 of the chip STM32F051 in the control circuit, a pin 38, a pin 39 and a pin 21 of the chip STM32F051 in the control circuit are electrically connected to 3 motor hall lines in the brushless dc motor G, and the remaining 2 motor hall lines are electrically connected to a +5V pin and a GND pin of the chip STM32F051, respectively.

In this embodiment, left brake switch K2 installs in the brake valve with left brake handle linkage, when pressing left brake handle, left brake switch K2 can be automatically by the linkage, left brake switch K2 can send signal to controller E, the same thing, wherein right brake switch K3 installs in the brake valve with right brake handle linkage, when pressing right brake handle, right brake switch K3 can be automatically by the linkage, right brake switch K3 can send signal to controller E.

The control software adopted in the control circuit adopts the prior art.

As shown in fig. 1, the starting principle of the electric vehicle of the present embodiment is as follows:

1. the electric door lock K1 is opened, the 60V lithium battery is communicated with the converter D and the controller E, the electric vehicle instrument displays a P character, the speed-regulating rotating handle F is rotated, and the direct-current brushless motor G does not rotate;

2. the single support is started by feet, the single support power-off switch K4 is disconnected, the chip STM32F051 receives a signal that the single support power-off switch K4 is disconnected, the P-gear switch K5 is pressed down, the P-gear switch K5 is disconnected, the chip STM32F051 receives a signal that the P-gear switch K5 is disconnected, the display of a word 'P' of the electric vehicle instrument disappears, the display of 'READY' is displayed at the same time, the speed-regulating rotating handle F is rotated at the same time, and the direct-current brushless motor G is also not rotated;

3. after the 2 nd step of basic operation, the user must hold back left brake handle or right brake handle (linked left brake switch K2 or right brake switch K3 promptly), left brake switch K2 or right brake switch K3 can send the signal to controller E, rotate the speed governing at this moment and change F, the speed governing is changeed F and is sent the signal to controller E, accomplish above steps, controller E control DC brushless motor G, DC brushless motor G can normal operating, the user can ride the vehicle.

The scope of the present invention includes, but is not limited to, the above embodiments, and the present invention is defined by the appended claims, and any alterations, modifications, and improvements that can be easily made by those skilled in the art are all within the scope of the present invention.

Claims

1. The utility model provides a novel electric motor car starting circuit which characterized in that: including singly prop outage switch K4, P shelves switch K5, power (C), switch lock K1, converter (D), left brake switch K2, right brake switch K3, controller (E) and speed governing commentaries on classics handle (F), the positive pole and the switch lock K1 one end electricity of power (C) are connected, the switch lock K1 other end is connected with the input and the controller (E) electricity of converter (D) respectively, the output of converter (D) is connected with left brake switch K2 and right brake switch K3's one end electricity simultaneously, left brake switch K2 and right brake switch K3's the other end all is connected with controller (E) electricity, singly prop outage switch K4 and P shelves switch K5's one end and all be connected with controller (E) electricity, singly prop outage switch K4 and P shelves switch K5's the other end and all be connected with the negative pole electricity of power (C), speed governing commentaries on classics handle (F) is connected with controller (E) electricity, and the controller (E) is electrically connected with the direct current brushless motor (G).

2. The novel starting circuit for electric vehicles as claimed in claim 1, wherein: the power supply (C) adopts a 60V lithium battery.

3. The novel starting circuit of an electric vehicle as set forth in claim 2, wherein: the converter (D) is a 60V-to-12V power converter, the input end of the converter (D) is 60V, and the output end of the converter (D) is 12V.

4. The novel starting circuit of an electric vehicle as set forth in claim 3, wherein: controller (E) is including step-down circuit, motor drive circuit and control circuit, the electric door lock K1 other end is connected with step-down circuit's input and motor drive circuit electricity respectively, step-down circuit's output is changeed (F) electricity and then is changeed (F) for control circuit and speed governing and provide 5V voltage with the speed governing respectively, motor drive circuit is connected with 3 motor phase lines (A) electricity of DC brushless motor (G), control circuit is connected with 5 motor hall line (B) electricity of DC brushless motor (G).

5. The novel starting circuit of an electric vehicle as set forth in claim 4, wherein: the control circuit adopts a chip STM32F 051.