CN108734878B

CN108734878B - Intelligent returning control system for electric automobile

Info

Publication number: CN108734878B
Application number: CN201710241752.0A
Authority: CN
Inventors: 蒋阳川
Original assignee: Ningbo Xuanyuexing Electric Automobile Service Co Ltd
Current assignee: Ningbo Xuanyuexing Electric Automobile Service Co Ltd
Priority date: 2017-04-13
Filing date: 2017-04-13
Publication date: 2020-12-15
Anticipated expiration: 2037-04-13
Also published as: CN108734878A

Abstract

The invention discloses an intelligent returning control system for an electric automobile, and relates to the technical field of returning processing of the electric automobile. The electric vehicle renting platform comprises an electric vehicle renting platform and a charging pile for charging the electric vehicle, wherein a vehicle returning end access device is arranged in a charging jack on a vehicle body of the electric vehicle; an abnormal vehicle returning pile end access device and a normal vehicle returning pile end access device are respectively arranged on a charging gun of the charging pile; the control end of the normal car returning pile end access device and the control end of the abnormal car returning pile end access device are respectively in communication connection with the leasing platform; and when the charging gun is inserted into the charging jack, if the vehicle is normally returned, the rental platform can be in communication connection with the vehicle returning end access device through the normal vehicle returning pile end access device, and if the vehicle is abnormally returned, the rental platform can be in communication connection with the vehicle returning end access device through the abnormal vehicle returning pile end access device.

Description

Intelligent returning control system for electric automobile

Technical Field

The invention relates to the technical field of electric automobile returning processing, in particular to an intelligent electric automobile returning control system.

Background

At present, the electric automobile is returned generally by a user to a specified return place and by adopting a manual registration mode, and the use is inconvenient. Therefore, it is necessary to design a system that can be returned by the user.

Disclosure of Invention

The invention aims to solve the defects of the existing electric automobile returning and provides an intelligent electric automobile returning control system, which is convenient to use, high in returning safety and reliability, high in intelligent degree and capable of actively cutting off the incoming line power supply of the charging pile when the charging pile is submerged in water.

The technical problem is solved by the following technical scheme:

the intelligent returning control system for the electric automobile comprises a leasing platform for the electric automobile and a charging pile for charging the electric automobile, wherein a returning automobile end access device is arranged in a charging jack on the automobile body of the electric automobile; an abnormal returning pile end access device which provides abnormal returning for the electric automobile and can be connected with the returning pile end access device in a matching manner and a normal returning pile end access device which provides normal returning for the electric automobile and can be connected with the returning pile end access device in a matching manner are respectively arranged on the charging guns of the charging piles; the control end of the normal car returning pile end access device and the control end of the abnormal car returning pile end access device are respectively in communication connection with the leasing platform; when the charging gun is inserted into the charging jack, if the vehicle is returned normally, the rental platform can be in communication connection with the vehicle returning end access device through the normal vehicle returning pile end access device, and if the vehicle is returned abnormally, the rental platform can be in communication connection with the vehicle returning end access device through the abnormal vehicle returning pile end access device; the vehicle door control module of the electric vehicle is connected with the vehicle returning end access device.

The car returning place of this scheme is at electric automobile charging station, and the car can conveniently charge for electric automobile at the charging station still, also is convenient for unify centralized management to electric automobile. When returning the car, need the user to drive the car to electric automobile charging station, the user will charge the rifle and insert electric automobile's the jack that charges in, if can normally return the car then lease platform accessible normally return the car stake end access device and return car end access device communication connection and let the customer normally return the car. And if the abnormal car returning occurs, the leasing platform can enable the customer to carry out the abnormal car returning through the communication connection of the abnormal car returning pile end access device and the car returning end access device. This system has designed two sets of car schemes of returning to the car normally and returning to the car unusually, lets this system return car convenient to use, and it is high with the reliability to return car security, and intelligent degree is high, can initiatively cut off the inlet wire power that fills electric pile when filling electric pile by the flood.

Preferably, the charging gun comprises an insertion column, a column bottom half through hole is vertically and upwards formed in the lower end face of the insertion column, an air cylinder with a telescopic rod vertically and downwards is arranged in the column bottom half through hole, and a pile end charging plug is fixedly arranged on the lower end face of the telescopic rod of the air cylinder; a support rod with the diameter smaller than the diameter of the column bottom half through hole is vertically arranged in the charging jack of the electric automobile, and a vehicle end charging socket which can be matched with the pile end charging plug for conductive connection is fixedly arranged at the top end of the support rod; the control end of the cylinder is connected with the leasing platform.

This scheme is through the flexible of lease platform control cylinder telescopic link to realize returning the car unusually with the adoption during can not normally returning the car, improved reliability, convenience and the security of returning the car greatly, intelligent degree is high.

Preferably, the normal returning pile end access device comprises a normal returning pile end communication conduction interface and a first electronic lock; the abnormal returning pile end access device comprises an abnormal returning pile end communication conduction interface and a second electronic lock; the returning vehicle end access device comprises a returning vehicle end communication conduction interface which can be in signal connection with the normal returning vehicle pile end communication conduction interface and the abnormal returning vehicle pile end communication conduction interface respectively; a first hole, a third hole, a fourth hole and a sixth hole are sequentially arranged on the outer side wall of the inserted column from bottom to top at intervals, the third hole is positioned right above the first hole, and the sixth hole is positioned right above the fourth hole; a second hole and a fifth hole are arranged on the vertical hole wall in the charging jack of the electric automobile, and the fifth hole is positioned above the second hole; the normal returning pile end communication conduction interface is arranged in the first hole, the returning pile end communication conduction interface is arranged in the second hole, the abnormal returning pile end communication conduction interface is arranged in the third hole, the first electronic lock is arranged in the fourth hole, and the second electronic lock is arranged in the sixth hole; when the first hole faces the second hole, the lock tongue of the first electronic lock also faces the fifth hole, and when the third hole faces the second hole, the lock tongue of the second electronic lock also faces the fifth hole; the control end of the first electronic lock and the control end of the second electronic lock are respectively connected with the leasing platform.

When the vehicle is normally returned, the normal vehicle returning pile end communication conduction interface and the vehicle returning end communication conduction interface are just opposite to signal connection, and the lock tongue of the electronic lock I extends out to be locked in the hole V. When the vehicle is abnormally returned, the communication conduction interface at the end of the abnormal vehicle returning pile and the communication conduction interface at the end of the abnormal vehicle returning pile are just opposite to the signal connection, and the lock tongue of the second electronic lock extends out to be locked in the fifth hole. The electric automobile returns the car convenient to use, and the security and the reliability of returning the car are high, and intelligent degree is high.

Preferably, a manual generator is arranged on the charging pile, a battery pack, a microcontroller and a battery connection module which are formed by sequentially connecting a plurality of independent single batteries in series are respectively arranged in the charging pile, and a charger, a change-over switch and a current limiting module which are respectively equal to the number of the single batteries are also arranged in the charging pile; the power input end of each charger is connected with the manual generator; the battery pack can simultaneously provide standby power for the microcontroller, the air cylinder, the first electronic lock and the second electronic lock; the microcontroller is connected with the leasing platform; the battery connection module comprises a body charging connection mechanism with the same number as the single batteries; a body voltage detection chip is respectively arranged on each body charging connection mechanism; the power output end of each charger is connected to one wiring end of the selection end of the change-over switch in a one-to-one manner; the rotating end of each selector switch is connected to one end of the current limiting module in a one-to-one manner, and the other end of each current limiting module is connected to the body charging connection mechanism of the battery connection module in a one-to-one manner; the battery connection module is connected to the battery pack, and the control end of the battery connection module, the control end of each body voltage detection chip, the control end of each current limiting module and the control end of each change-over switch are respectively connected with the microcontroller; under the control of the microcontroller, when the battery pack is not charged, the battery connection module can sequentially connect the independent single batteries in the battery pack in series to form a series battery, and when the battery pack is charged, the battery connection module can sequentially connect the series batteries in the battery pack in series to form the independent single batteries.

When the scheme is used for charging, the voltage detection chip can detect the voltage of the corresponding single battery. When a certain single battery is fully charged, the charging current can be reduced through the current limiting module, and when the certain single battery is still far from being fully charged, the charging current can be increased through the current limiting module. Thereby making the voltage contained in the single batteries as the same as possible. The charging power supply is disconnected when each of the unit cells is fully charged and the voltage of each of the unit cells is the same. Or the charging power supply may be disconnected when each unit cell is not fully charged and the voltage of each unit cell is the same. After the single batteries are connected in series, no current flows between the single batteries connected in series, and the reliability of the batteries is high. The charging current or charging voltage of each charger may be different from each other. Different chargers can be selected for a single battery through the change-over switch. The cooperation of change over switch and current limiting module can be better for the battery cell that needs charge provides charging current and charging voltage in real time to be convenient for carry out the independent control to each battery cell's the progress of charging, also be convenient for carry out the independent control to each battery cell's charging voltage. The temperature of the single battery can be detected through the temperature detection mechanism in the charging process, and the over-temperature protection control can be carried out on the single battery when the single battery is charged.

This scheme enables single battery's damage can not influence other battery cells and charges, and can become series battery together with each independent battery cell in the group battery in proper order series connection when not charging for the group battery, can become independent battery cell with series battery together in the group battery in proper order series connection when charging for the group battery, the charging process to every battery cell can also carry out voltage detection, and can carry out the independent control to each battery cell's the progress of charging, still can carry out the independent control to each battery cell's charging voltage, and can carry out the excess temperature protection control to battery cell when charging.

Preferably, three single batteries of the battery pack are arranged, and the three single batteries are respectively a first single battery, a second single battery and a third single battery; the battery connection module comprises three body charging connection mechanisms, namely a first body charging connection mechanism, a second body charging connection mechanism and a third body charging connection mechanism; the battery connecting module also comprises a group power supply output interface, a first single-pole double-throw switch, a second single-pole double-throw switch and a single-pole switch; the positive pole of the first single battery is connected to the rotating end of the first single-pole double-throw switch, the first contact of the first single-pole double-throw switch is connected to the positive pole wiring end of the first charging connection mechanism, the second contact of the first single-pole double-throw switch is connected to the second contact of the second single-pole double-throw switch, the negative pole of the first single battery is connected to the negative pole wiring end of the first charging connection mechanism, and the negative pole of the first single battery is also connected to the negative pole wiring end of the group power supply output interface; the positive electrode of the second single battery is connected to the positive electrode wiring end of the second charging connection mechanism, the positive electrode of the second single battery is also connected to the positive electrode wiring end of the group power output interface, the negative electrode of the second single battery is connected to the negative electrode wiring end of the second charging connection mechanism, and the negative electrode of the second single battery is also connected to one end of the single-pole switch; the negative pole of the No. three single battery is connected to the rotating end of the No. two single-pole double-throw switch, the first contact of the No. two single-pole double-throw switch is connected to the negative pole wiring end of the No. three body charging connection mechanism, the positive pole of the No. three single battery is connected to the positive pole wiring end of the No. three body charging connection mechanism, and the positive pole of the No. three single battery is also connected to the other end of the single-pole switch; the control end of the first single-pole double-throw switch, the control end of the second single-pole double-throw switch and the control end of the single-pole switch are respectively connected with the microcontroller.

Preferably, the waterproof power-off protection device comprises a pile power-on waterproof device, the pile power-on waterproof device comprises a first pipe vertically fixed on a base of the charging pile, a first sliding block is vertically and slidably arranged in a pipe cavity of the first pipe, a first pipe cavity positioned below the first sliding block is a first pipe lower pipe cavity, a first wire inlet socket is fixedly arranged on the inner bottom surface of the first pipe lower pipe cavity, and a first plug matched with the first wire inlet socket is fixedly connected to the lower surface of the first sliding block; the inlet wire of the charging pile is connected to the first inlet wire socket in a sealing and waterproof mode, and the power supply line of each electric device in the charging pile is connected to the first plug; a first support rod, a first fixed pulley, a first horizontal bracket and a first buoyancy ball are fixedly arranged on the outer pipe wall of the first pipe; the upper end of the first supporting rod is higher than the upper pipe orifice of the first pipe, the first fixed pulley is positioned below the first horizontal support, the first supporting rod is positioned above the first horizontal support, and the first buoyancy ball is freely and movably placed on the first horizontal support; a first lever is rotatably arranged on the first supporting rod, two ends of a first lifting rope are respectively and fixedly connected to one end of the first lever and the upper surface of the first sliding block, two ends of a first pulling rope are respectively and fixedly connected to the other end of the first lever and the first buoyancy ball, and the first pulling rope is in rolling connection with the first fixed pulley; when the upward buoyancy of the first buoyancy ball is larger than a set value, the first lifting rope can pull the first sliding block to move upwards, so that the first plug is separated from the first inlet wire socket; a lower membrane cavity and an upper membrane cavity are fixedly arranged in the lower tube cavity of the first tube, a pricking head in an inverted T shape is fixedly connected to the first sliding block, and the pricking head end of the pricking head is positioned below the lower membrane cavity; the glue is filled with AB glue in the upper film cavity, the hardening agent of the AB glue is filled in the lower film cavity, and the glue and the hardening agent can be hermetically connected on the jack surface of the first inlet wire socket to seal the jack of the first inlet wire socket after being mixed.

The invention can achieve the following effects:

1. the invention has the advantages of convenient use of returning the electric automobile, high safety and reliability of returning the automobile and high intelligent degree, and can actively cut off the incoming line power supply of the charging pile when the charging pile is submerged by water.

2. The invention can not lack electricity when returning the car, and the user can generate electricity to return the car when the electricity is lack.

3. The invention can ensure that the damage of a single battery can not influence the charging of other single batteries, can sequentially connect the independent single batteries in the battery pack in series to form a series battery when the battery pack is not charged, can sequentially connect the series batteries in series to form a series battery when the battery pack is charged, can convert the series batteries in series to form independent single batteries when the battery pack is charged, can also carry out voltage detection on the charging process of each single battery, can independently control the charging progress of each single battery, and can also independently control the charging voltage of each single battery, thereby having high safety and good reliability.

Drawings

Fig. 1 is a schematic view of a connection structure in a cross-sectional use state when a plug of a charging gun is not inserted into a charging jack of an electric vehicle according to an embodiment of the present invention.

Fig. 2 is a schematic view of a connection structure of a charging gun according to an embodiment of the present invention, when a plug post is not yet inserted into a charging jack of an electric vehicle.

Fig. 3 is a schematic sectional view showing a connection structure in a normal returning state when the plug post of the charging gun according to the embodiment of the invention is inserted into the charging jack of the electric vehicle, the first hole faces the second hole, and the bolt of the first electronic lock in the fourth hole is inserted into the fifth hole.

Fig. 4 is a schematic view of a cross-sectional connection structure of an abnormal returning state when the plug post of the charging gun is inserted into the charging jack of the electric vehicle, the third hole faces the second hole, and the bolt of the second electronic lock in the sixth hole is inserted into the fifth hole according to the embodiment of the invention.

Fig. 5 is a schematic diagram of a circuit principle connection structure according to an embodiment of the present invention.

Fig. 6 is a schematic block diagram of a circuit principle connection structure of the present embodiment.

Fig. 7 is a schematic view of a connection structure of the pile-driving waterproof device of the embodiment.

Detailed Description

The invention is further described with reference to the following figures and examples.

In the embodiment, the intelligent returning control system for the electric vehicle, as shown in fig. 1-6, comprises a leasing platform 50 for the electric vehicle and a charging pile 49 for charging the electric vehicle, wherein a returning vehicle end access device 51 is arranged in a charging jack on a vehicle body of the electric vehicle; an abnormal returning pile end access device 52 which provides abnormal returning for the electric automobile 26 and can be connected with the returning pile end access device in a matching manner and a normal returning pile end access device 53 which provides normal returning for the electric automobile and can be connected with the returning pile end access device in a matching manner are respectively arranged on a charging gun 48 of the charging pile; the control end of the normal car returning pile end access device and the control end of the abnormal car returning pile end access device are respectively in communication connection with the leasing platform; and when the charging gun is inserted into the charging jack, if the vehicle is normally returned, the rental platform can be in communication connection with the vehicle returning end access device through the normal vehicle returning pile end access device, and if the vehicle is abnormally returned, the rental platform can be in communication connection with the vehicle returning end access device through the abnormal vehicle returning pile end access device. The battery management system 54 of the electric vehicle is connected to a return vehicle end access device. The vehicle controller 55 of the electric vehicle is connected with the vehicle returning end access device, and the vehicle door control module 58 of the electric vehicle is connected with the vehicle controller.

The charging gun comprises an inserting column 34, a column bottom half through hole 30 is vertically and upwards arranged on the lower end surface of the inserting column, a cylinder 33 with a telescopic rod vertically and downwards is arranged in the column bottom half through hole, and a pile end charging plug 31 is fixedly arranged on the lower end surface of a telescopic rod 32 of the cylinder; a support rod 27 with the diameter smaller than that of the column bottom half through hole is vertically and upwards arranged in a charging jack 29 of the electric automobile 26, and a vehicle end charging socket 28 which can be matched with a pile end charging plug for conductive connection is fixedly arranged at the top end of the support rod; the control end of the cylinder is connected with the leasing platform.

The normal returning pile end access device comprises a normal returning pile end communication conduction interface 44 and a first electronic lock 39; the abnormal returning pile end access device comprises an abnormal returning pile end communication conduction interface 42 and a second electronic lock 36; the returning vehicle end access device comprises a returning vehicle end communication conduction interface 47 which can be in signal connection with the normal returning vehicle pile end communication conduction interface and the abnormal returning vehicle pile end communication conduction interface respectively; a first hole 43, a third hole 41, a fourth hole 38 and a sixth hole 35 are sequentially arranged on the outer side wall of the plug from bottom to top at intervals, the third hole is positioned right above the first hole, and the sixth hole is positioned right above the fourth hole; a second hole 46 and a fifth hole 45 are arranged on the vertical hole wall in the charging jack of the electric automobile, and the fifth hole is positioned above the second hole; the normal returning pile end communication conduction interface is arranged in the first hole, the returning pile end communication conduction interface is arranged in the second hole, the abnormal returning pile end communication conduction interface is arranged in the third hole, the first electronic lock is arranged in the fourth hole, and the second electronic lock is arranged in the sixth hole; when the first hole faces the second hole, the lock tongue 40 of the first electronic lock also faces the fifth hole, and when the third hole faces the second hole, the lock tongue 37 of the second electronic lock also faces the fifth hole; the control end of the first electronic lock and the control end of the second electronic lock are respectively connected with the leasing platform.

The charging gun is provided with a fingerprint identification instrument 56 and a card reader 57 which are respectively connected with the leasing platform.

Referring to fig. 7, the waterproof power-off protection device comprises a pile power-on waterproof device, the pile power-on waterproof device comprises a first pipe s6 vertically fixed on a base s3 of a charging pile 49, a first sliding block s5 is vertically arranged in a pipe cavity s14 of the first pipe in a sliding manner, the pipe cavity of the first pipe located below the first sliding block is a first pipe lower pipe cavity s15, a first wire inlet socket s2 is fixedly arranged on the inner bottom surface of the first pipe lower pipe cavity, and a first plug s4 matched with the first wire inlet socket is fixedly connected to the lower surface of the first sliding block; the inlet wire s1 of the charging pile is connected to a first inlet wire socket in a sealing and waterproof mode, and the power supply wire s8 of each electric device in the charging pile is connected to a first plug; a first support rod s10, a first fixed pulley s13, a first horizontal support s22 and a first buoyancy ball s11 are fixedly arranged on the outer tube wall of the first tube; the upper end of the first supporting rod is higher than the upper pipe orifice of the first pipe, the first fixed pulley is positioned below the first horizontal support, the first supporting rod is positioned above the first horizontal support, and the first buoyancy ball is freely and movably placed on the first horizontal support; a first lever s9 is rotatably arranged on the first supporting rod, two ends of a first lifting rope s23 are fixedly connected to one end of the first lever and the upper surface of the first sliding block respectively, two ends of a first pulling rope s12 are fixedly connected to the other end of the first lever and the first buoyancy ball respectively, and the first pulling rope is in rolling connection with the first fixed pulley; when the upward buoyancy of the first buoyancy ball is larger than a set value, the first lifting rope can pull the first sliding block to move upwards, so that the first plug is separated from the first inlet wire socket; a lower membrane cavity s19 and an upper membrane cavity s17 are fixedly arranged in the lower tube cavity of the first tube, a pricking head s20 in an inverted T shape is fixedly connected to the first sliding block, and a pricking head end s21 of the pricking head is positioned below the lower membrane cavity; the upper film cavity is filled with the original glue s16 of the AB glue s24, the lower film cavity is filled with the hardening agent s18 of the AB glue, and the original glue and the hardening agent can be mixed and then can be hermetically connected to the face of the jack s7 of the first inlet wire socket to seal the jack of the first inlet wire socket.

The waterproof power-off protection device further comprises a pile power-off waterproof device, and the structure of the pile power-off waterproof device is the same as that of the pile power-in waterproof device.

Rising to the settlement when water and making a definite effort, the upwards pulling force that produces of buoyancy ball can be through stay cord No. one, a lever, carry the rope, and a sliding block is used on a plug, a plug will move up, a plug rises after a plug can separate with an inlet wire socket, can with an inlet wire socket disengaging process in a plug, prick the head and also can upwards move the extrusion and break down the membrane chamber and go up the membrane chamber, hardener in the lower membrane chamber can mix with this glue in last membrane chamber, hardener and this glue can be sealed after can mixing on the jack s7 face of an inlet wire socket with the jack of an inlet wire socket sealed. Thereby realize filling the outage insulating seal of electric pile inlet wire. Fill the outage insulating seal of electric pile inlet wire and prevented the maintenance and electrocute, the security is higher.

The charging pile is provided with a manual generator 1, a battery pack 25, a microcontroller 8 and a battery connecting module 22 which are formed by sequentially connecting a plurality of independent single batteries in series are respectively arranged in the charging pile, and a charger, a change-over switch and a current limiting module which are respectively equal to the number of the single batteries are also arranged in the charging pile; the power input end of each charger is connected with a manual generator, and the battery pack can simultaneously provide standby power for the microcontroller, the air cylinder, the camera 59, the microphone 60, the first electronic lock, the second electronic lock, the fingerprint identification instrument and the card reader; the microcontroller is connected with the leasing platform.

The main power supplies of the microcontroller, the cylinder, the camera, the microphone, the first electronic lock, the second electronic lock, the fingerprint identification instrument and the card reader are provided by commercial power. The battery pack supplies power to the microcontroller, the air cylinder, the camera, the microphone, the first electronic lock, the second electronic lock, the fingerprint identification instrument and the card reader at the same time only under the condition that no commercial power is available.

The battery connection module comprises a body charging connection mechanism with the same number as the single batteries; a body voltage detection chip 101 is respectively arranged on each body charging connection mechanism; the power output end of each charger is connected to one wiring end of the selection end of the change-over switch in a one-to-one manner; the rotating end of each selector switch is connected to one end of the current limiting module in a one-to-one manner, and the other end of each current limiting module is connected to the body charging connection mechanism of the battery connection module in a one-to-one manner; the battery connection module is connected to the battery pack, and the control end of the battery connection module, the control end of each body voltage detection chip 101, the control end of each current limiting module and the control end of each change-over switch are respectively connected with the microcontroller; under the control of the microcontroller, when the battery pack is not charged, the battery connection module can sequentially connect the independent single batteries in the battery pack in series to form a series battery, and when the battery pack is charged, the battery connection module can sequentially connect the series batteries in the battery pack in series to form the independent single batteries.

The chargers in this example are charger 2, charge 3, and charger 4. The change-over switches in this example are the change-over switch 5, the change-over switch 6 and the change-over switch 7. The current limiting modules in this example are current limiting module 9, current limiting module 10 and current limiting module 11. The selection terminal of each switch includes a terminal a, a terminal b, and a terminal c.

The battery pack of the embodiment has three single batteries, and the three single batteries are respectively a first single battery 19, a second single battery 20 and a third single battery 21; the battery connection module comprises three body charging connection mechanisms, namely a first body charging connection mechanism 12, a second body charging connection mechanism 13 and a third body charging connection mechanism 14; the battery connection module also comprises a group power supply output interface 15, a first single-pole double-throw switch 17, a second single-pole double-throw switch 18 and a single-pole switch 16; the positive pole of the first single battery is connected to the rotating end of the first single-pole double-throw switch, the first contact of the first single-pole double-throw switch is connected to the positive pole wiring end of the first charging connection mechanism, the second contact of the first single-pole double-throw switch is connected to the second contact of the second single-pole double-throw switch, the negative pole of the first single battery is connected to the negative pole wiring end of the first charging connection mechanism, and the negative pole of the first single battery is also connected to the negative pole wiring end of the group power supply output interface; the positive electrode of the second single battery is connected to the positive electrode wiring end of the second charging connection mechanism, the positive electrode of the second single battery is also connected to the positive electrode wiring end of the group power output interface, the negative electrode of the second single battery is connected to the negative electrode wiring end of the second charging connection mechanism, and the negative electrode of the second single battery is also connected to one end of the single-pole switch; the negative electrode 24 of the third single battery is connected to the rotating end of the second single-pole double-throw switch, the first contact of the second single-pole double-throw switch is connected to the negative electrode wiring end of the third charging connection mechanism, the positive electrode 23 of the third single battery is connected to the positive electrode wiring end of the third charging connection mechanism, and the positive electrode of the third single battery is also connected to the other end of the single-pole switch; the control end of the first single-pole double-throw switch, the control end of the second single-pole double-throw switch and the control end of the single-pole switch are respectively connected with the microcontroller.

The second contact of the first single-pole double-throw switch and the second contact of the second single-pole double-throw switch are both normally closed contacts, the second contact of the first single-pole double-throw switch and the second contact of the second single-pole double-throw switch are both in an open state when the battery pack is charged, and the second contact of the first single-pole double-throw switch and the second contact of the second single-pole double-throw switch are both in a closed state when the battery pack is not charged; the first contact of the first single-pole double-throw switch and the first contact of the second single-pole double-throw switch are normally open contacts, the first contact of the first single-pole double-throw switch and the first contact of the second single-pole double-throw switch are both in a closed state when the battery pack is charged, and the first contact of the first single-pole double-throw switch and the first contact of the second single-pole double-throw switch are both in an open state when the battery pack is not charged; the single-pole switch is in an open state when the battery pack is charged and is in a closed state when the battery pack is not charged.

This embodiment lets electric automobile still car convenient to use, and it is high with the reliability to return car security, and intelligent degree is high, can initiatively cut off the inlet wire power of filling electric pile when filling electric pile by the water logging and submerging, can not lack the electricity when returning the car, can return the car by user's own electricity generation during the lack of electricity.

When the battery pack is charged, the voltage detection chip can detect the voltage of the corresponding single battery. When a certain single battery is fully charged, the charging current can be reduced through the current limiting module, and when the certain single battery is still far from being fully charged, the charging current can be increased through the current limiting module. Thereby making the voltage contained in the single batteries as the same as possible. The charging power supply is disconnected when each of the unit cells is fully charged and the voltage of each of the unit cells is the same. Or the charging power supply may be disconnected when each unit cell is not fully charged and the voltage of each unit cell is the same. After the single batteries are connected in series, no current flows between the single batteries connected in series, and the reliability of the batteries is high. The charging current or charging voltage of each charger may be different from each other. Different chargers can be selected for a single battery through the change-over switch. The cooperation of change over switch and current limiting module can be better for the battery cell that needs charge provides charging current and charging voltage in real time to be convenient for carry out the independent control to each battery cell's the progress of charging, also be convenient for carry out the independent control to each battery cell's charging voltage. Make this embodiment have dual power supply function through dual supply mechanism, improved reliability and practicality greatly.

This embodiment enables single battery's damage can not influence other battery cells and charges, and can become series battery together with each independent battery cell in the group battery in proper order series connection when not charging for the group battery, can become independent battery cell with series battery together in the group battery in proper order series connection when charging for the group battery, the charging process to every battery cell can also carry out voltage detection, and can carry out the independent control to each battery cell's the progress of charging, still can carry out the independent control to each battery cell's charging voltage. And can carry out over-temperature protection control on the single battery when charging. The uninterrupted power supply of the electric equipment is realized by adopting a dual-power mechanism for power supply. The safety is high and the reliability is good.

The battery connection module of this embodiment can be fine when letting the group battery charge in can become the series battery with each mutually independent battery cell in the group battery in series connection in proper order together, can become the mutually independent battery cell with the series battery that the series connection was in the group battery in proper order together when charging for the group battery, the reliability is high.

The embodiment can improve the condition that the battery pack can always keep that all the independent single batteries in the battery pack are sequentially connected in series to form a series battery in the using process, and the reliability is high.

The camera and the microphone camera can conveniently contact with a user by a worker at the rental platform, and the worker can determine the car returning state and the car returning state through the voice of the microphone and the image collected by the camera, so that the car returning process is facilitated.

The car returning place of this embodiment is at electric automobile charging station, and the car can conveniently charge for electric automobile at the charging station still, also is convenient for carry out unified centralized management to electric automobile. When returning the car, need the user to drive the car to electric automobile charging station, the user will charge the rifle and insert electric automobile's the jack that charges in, if can normally return the car then lease platform accessible normally return the car stake end access device and return car end access device communication connection and let the customer normally return the car. And if the abnormal car returning occurs, the leasing platform can enable the customer to carry out the abnormal car returning through the communication connection of the abnormal car returning pile end access device and the car returning end access device. This system has designed two sets of car schemes of returning of normal car and unusual car, lets this system return car convenient to use, and the car security and the reliability of returning are high, and intelligent degree is high.

This embodiment is through the flexible of lease platform control cylinder telescopic link to realize returning the car unusually with can not normally returning the car, improved reliability, convenience and the security of returning the car greatly. When the vehicle is normally returned, the normal vehicle returning pile end communication conduction interface and the vehicle returning end communication conduction interface are just opposite to signal connection, and the lock tongue of the electronic lock I extends out to be locked in the hole V. When the vehicle is abnormally returned, the communication conduction interface at the end of the abnormal vehicle returning pile and the communication conduction interface at the end of the abnormal vehicle returning pile are just opposite to the signal connection, and the lock tongue of the second electronic lock extends out to be locked in the fifth hole. The electric automobile returns the car convenient to use, and the security and the reliability of returning the car are high, and intelligent degree is high.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the implementation is not limited to the above-described embodiments, and those skilled in the art can make various changes or modifications within the scope of the appended claims.

Claims

1. An intelligent returning control system for an electric automobile comprises a leasing platform for the electric automobile and a charging pile for charging the electric automobile, and is characterized by further comprising a waterproof power-off protection device for preventing the charging pile from being burnt out due to water inflow of the charging pile, wherein a returning automobile end access device is arranged in a charging jack on an automobile body of the electric automobile; an abnormal returning pile end access device which provides abnormal returning for the electric automobile and can be connected with the returning pile end access device in a matching manner and a normal returning pile end access device which provides normal returning for the electric automobile and can be connected with the returning pile end access device in a matching manner are respectively arranged on the charging guns of the charging piles; the control end of the normal car returning pile end access device and the control end of the abnormal car returning pile end access device are respectively in communication connection with the leasing platform; when the charging gun is inserted into the charging jack, if the vehicle is returned normally, the rental platform can be in communication connection with the vehicle returning end access device through the normal vehicle returning pile end access device, and if the vehicle is returned abnormally, the rental platform can be in communication connection with the vehicle returning end access device through the abnormal vehicle returning pile end access device; the whole vehicle controller of the electric vehicle is connected with the vehicle returning end access device, and the vehicle door control module of the electric vehicle is connected with the whole vehicle controller; the charging gun comprises an inserting column, a column bottom half through hole is vertically and upwards arranged on the lower end surface of the inserting column, an air cylinder with a telescopic rod vertically and downwards is arranged in the column bottom half through hole, and a pile end charging plug is fixedly arranged on the lower end surface of the telescopic rod of the air cylinder; a support rod with the diameter smaller than the diameter of the column bottom half through hole is vertically arranged in the charging jack of the electric automobile, and a vehicle end charging socket which can be matched with the pile end charging plug for conductive connection is fixedly arranged at the top end of the support rod; the control end of the cylinder is connected with the leasing platform.

2. The intelligent electric vehicle returning control system of claim 1, wherein the normal returning pile end access device comprises a normal returning pile end communication conduction interface and a first electronic lock; the abnormal returning pile end access device comprises an abnormal returning pile end communication conduction interface and a second electronic lock; the returning vehicle end access device comprises a returning vehicle end communication conduction interface which can be in signal connection with the normal returning vehicle pile end communication conduction interface and the abnormal returning vehicle pile end communication conduction interface respectively; a first hole, a third hole, a fourth hole and a sixth hole are sequentially arranged on the outer side wall of the inserted column from bottom to top at intervals, the third hole is positioned right above the first hole, and the sixth hole is positioned right above the fourth hole; a second hole and a fifth hole are arranged on the vertical hole wall in the charging jack of the electric automobile, and the fifth hole is positioned above the second hole; the normal returning pile end communication conduction interface is arranged in the first hole, the returning pile end communication conduction interface is arranged in the second hole, the abnormal returning pile end communication conduction interface is arranged in the third hole, the first electronic lock is arranged in the fourth hole, and the second electronic lock is arranged in the sixth hole; when the first hole faces the second hole, the lock tongue of the first electronic lock also faces the fifth hole, and when the third hole faces the second hole, the lock tongue of the second electronic lock also faces the fifth hole; the control end of the first electronic lock and the control end of the second electronic lock are respectively connected with the leasing platform.

3. The intelligent returning control system of the electric automobile as claimed in claim 2, wherein a manual generator is provided on the charging pile, a battery pack, a microcontroller and a battery connection module, which are formed by connecting a plurality of independent single batteries in series in sequence, are respectively provided in the charging pile, and a charger, a change-over switch and a current limiting module, which are equal in number to the single batteries, are also provided in the charging pile; the power input end of each charger is connected with the manual generator; the battery pack can simultaneously provide standby power for the microcontroller, the air cylinder, the first electronic lock and the second electronic lock; the microcontroller is connected with the leasing platform; the battery connection module comprises a body charging connection mechanism with the same number as the single batteries; a body voltage detection chip is respectively arranged on each body charging connection mechanism; the power output end of each charger is connected to one wiring end of the selection end of the change-over switch in a one-to-one manner; the rotating end of each selector switch is connected to one end of the current limiting module in a one-to-one manner, and the other end of each current limiting module is connected to the body charging connection mechanism of the battery connection module in a one-to-one manner; the battery connection module is connected to the battery pack, and the control end of the battery connection module, the control end of each body voltage detection chip, the control end of each current limiting module and the control end of each change-over switch are respectively connected with the microcontroller; under the control of the microcontroller, when the battery pack is not charged, the battery connection module can sequentially connect the independent single batteries in the battery pack in series to form a series battery, and when the battery pack is charged, the battery connection module can sequentially connect the series batteries in the battery pack in series to form the independent single batteries.

4. The intelligent electric vehicle returning control system according to claim 3, wherein three single batteries of the battery pack are provided, and the three single batteries are respectively a first single battery, a second single battery and a third single battery; the battery connection module comprises three body charging connection mechanisms, namely a first body charging connection mechanism, a second body charging connection mechanism and a third body charging connection mechanism; the battery connecting module also comprises a group power supply output interface, a first single-pole double-throw switch, a second single-pole double-throw switch and a single-pole switch; the positive pole of the first single battery is connected to the rotating end of the first single-pole double-throw switch, the first contact of the first single-pole double-throw switch is connected to the positive pole wiring end of the first charging connection mechanism, the second contact of the first single-pole double-throw switch is connected to the second contact of the second single-pole double-throw switch, the negative pole of the first single battery is connected to the negative pole wiring end of the first charging connection mechanism, and the negative pole of the first single battery is also connected to the negative pole wiring end of the group power supply output interface; the positive electrode of the second single battery is connected to the positive electrode wiring end of the second charging connection mechanism, the positive electrode of the second single battery is also connected to the positive electrode wiring end of the group power output interface, the negative electrode of the second single battery is connected to the negative electrode wiring end of the second charging connection mechanism, and the negative electrode of the second single battery is also connected to one end of the single-pole switch; the negative pole of the No. three single battery is connected to the rotating end of the No. two single-pole double-throw switch, the first contact of the No. two single-pole double-throw switch is connected to the negative pole wiring end of the No. three body charging connection mechanism, the positive pole of the No. three single battery is connected to the positive pole wiring end of the No. three body charging connection mechanism, and the positive pole of the No. three single battery is also connected to the other end of the single-pole switch; the control end of the first single-pole double-throw switch, the control end of the second single-pole double-throw switch and the control end of the single-pole switch are respectively connected with the microcontroller.

5. The intelligent electric vehicle returning control system according to claim 1, wherein the waterproof power-off protection device comprises a pile power-on waterproof device, the pile power-on waterproof device comprises a first pipe vertically fixed on a base of the charging pile, a first sliding block is vertically arranged in a pipe cavity of the first pipe in a sliding manner, the pipe cavity of the first pipe positioned below the first sliding block is a lower pipe cavity of the first pipe, a first wire inlet socket is fixedly arranged on the inner bottom surface of the lower pipe cavity of the first pipe, and a first plug matched with the first wire inlet socket is fixedly connected to the lower surface of the first sliding block; the inlet wire of the charging pile is connected to the first inlet wire socket in a sealing and waterproof mode, and the power supply line of each electric device in the charging pile is connected to the first plug; a first support rod, a first fixed pulley, a first horizontal bracket and a first buoyancy ball are fixedly arranged on the outer pipe wall of the first pipe; the upper end of the first supporting rod is higher than the upper pipe orifice of the first pipe, the first fixed pulley is positioned below the first horizontal support, the first supporting rod is positioned above the first horizontal support, and the first buoyancy ball is freely and movably placed on the first horizontal support; a first lever is rotatably arranged on the first supporting rod, two ends of a first lifting rope are respectively and fixedly connected to one end of the first lever and the upper surface of the first sliding block, two ends of a first pulling rope are respectively and fixedly connected to the other end of the first lever and the first buoyancy ball, and the first pulling rope is in rolling connection with the first fixed pulley; when the upward buoyancy of the first buoyancy ball is larger than a set value, the first lifting rope can pull the first sliding block to move upwards, so that the first plug is separated from the first inlet wire socket; a lower membrane cavity and an upper membrane cavity are fixedly arranged in the lower tube cavity of the first tube, a pricking head in an inverted T shape is fixedly connected to the first sliding block, and the pricking head end of the pricking head is positioned below the lower membrane cavity; the glue is filled with AB glue in the upper film cavity, the hardening agent of the AB glue is filled in the lower film cavity, and the glue and the hardening agent can be hermetically connected on the jack surface of the first inlet wire socket to seal the jack of the first inlet wire socket after being mixed.