CN114714961A

CN114714961A - Shuttle and shuttle control method

Info

Publication number: CN114714961A
Application number: CN202210482396.2A
Authority: CN
Inventors: 张建平; 黄春华
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2020-01-23
Filing date: 2020-01-23
Publication date: 2022-07-08
Also published as: CN111251937A; JP2023511579A; CN114714962A; CN114987270A; WO2021148035A1; KR20220160545A; CN114987273A; CN111251937B

Abstract

The invention provides a shuttle vehicle and a shuttle vehicle control method, which are used for replacing a battery pack at the bottom of an electric vehicle, wherein the shuttle vehicle comprises a moving platform, a travelling mechanism and a controller, and the moving platform is positioned on the travelling mechanism; the controller is used for controlling the travelling mechanism to travel; the controller is also used for controlling the mobile platform to move relative to the travelling mechanism along the length direction of the body of the electric vehicle; the controller is also used for controlling the mobile platform to lift relative to the walking mechanism. According to the shuttle car and the shuttle car control method, the moving platform capable of moving horizontally and lifting and the walking mechanism capable of walking are arranged, so that the shuttle car can realize unlocking and locking of the battery pack.

Description

Shuttle and shuttle control method

The application is a divisional application of Chinese patent application with the application date of 2020, 23.01.78 and the application number of 202010076930.0, entitled "shuttle vehicle and shuttle vehicle control method".

Technical Field

The invention relates to a shuttle vehicle.

The invention also relates to a shuttle vehicle control method.

Background

The quick-change electric automobile can meet the power supply requirement of the quick-change electric automobile in a mode of replacing the battery pack. In the process of replacing the battery pack, a shuttle vehicle is generally required. The shuttle car is used for transporting the battery pack between the electric automobile and the battery cabin, and also has the functions of unlocking an old battery pack from the electric automobile, and packing a new battery pack into the electric automobile and locking the new battery pack. The electric automobile is provided with a lock base used for locking the battery pack, and the shuttle car needs to perform a series of actions to unlock the lock base in the battery pack unlocking process; during the process of locking the battery pack, the shuttle vehicle also needs to perform a series of actions to lock the battery pack in the lock base. Therefore, how to design the shuttle car and enable the shuttle car to realize the unlocking and locking of the battery pack is a problem which needs to be solved urgently.

Disclosure of Invention

The invention aims to solve the technical problem of providing a shuttle vehicle and a shuttle vehicle control method for achieving the purpose of controlling unlocking and locking of a battery pack by the shuttle vehicle.

The invention solves the technical problems through the following technical scheme:

the invention provides a shuttle vehicle, which is used for replacing a battery pack at the bottom of an electric vehicle, and comprises:

a mobile platform;

the moving platform is positioned on the travelling mechanism;

the controller is used for controlling the travelling mechanism to travel; the controller is also used for controlling the mobile platform to move relative to the travelling mechanism along the length direction of the body of the electric vehicle; the controller is also used for controlling the mobile platform to lift relative to the walking mechanism;

the mobile platform comprises a lower frame and a battery carrier, and the controller can control the lower frame and the battery carrier to move respectively; a first guide piece is arranged on the lower frame, a positioning piece is arranged at the bottom of the electric vehicle, and the first guide piece is used for being matched with the positioning piece; the battery pack is characterized in that a second guide piece is arranged on the battery carrier, a positioning block is arranged on the battery pack, and the second guide piece is used for being matched with the positioning block.

Preferably, a first origin is arranged on the lower frame, and a standard coordinate of the first origin is a coordinate where the first origin is located when the lower frame corresponds to the battery replacement position; the controller is used for controlling the lower frame to move along the length direction of the body of the electric vehicle according to the coordinate difference between the actual coordinate of the first origin and the standard coordinate of the first origin.

Preferably, the battery carrier is provided with a second origin, and the standard coordinate of the second origin is the coordinate where the second origin is located when the battery carrier corresponds to the battery replacement position; the controller is further used for controlling the battery carrier to move along the length direction of the electric vehicle body according to the coordinate difference between the actual coordinate of the second origin and the standard coordinate of the second origin.

Preferably, the battery carrier further comprises an upper frame and a battery tray, the battery tray being located on the upper frame; the shuttle car further comprises a first starting sensor, the first starting sensor is arranged on the upper frame and used for detecting whether the battery tray is arranged above the upper frame or not, the first starting sensor is further used for generating a first starting signal when the battery tray is arranged above the upper frame, the first starting sensor is further used for sending the first starting signal to the controller, and the controller is further used for controlling the shuttle car to move after receiving the first starting signal.

Preferably, the shuttle car further includes a second starting sensor, the second starting sensor is disposed on the moving platform, the second starting sensor is configured to detect whether a battery pack is located above the moving platform, the second starting sensor is further configured to generate a second starting signal when the battery pack is located above the moving platform, the second starting sensor is further configured to send the second starting signal to the controller, and the controller is further configured to control the shuttle car to move after receiving the second starting signal.

Preferably, a positioning point is arranged on a traveling channel of the shuttle vehicle along the width direction of the vehicle body of the electric vehicle, a positioning sensor is arranged on the traveling mechanism, the positioning sensor is used for detecting a signal of the positioning point, the positioning sensor is further used for generating a positioning signal to the controller when the positioning point is detected, and the controller is further used for controlling the traveling mechanism to stop moving after receiving the positioning signal.

Preferably, the shuttle car is provided with a limit sensor, a travel channel of the shuttle car is provided with a limit detection point, the limit sensor is used for detecting the limit detection point, the limit sensor is also used for sending an alarm signal after detecting the limit detection point, and the controller is also used for controlling the travel mechanism to stop moving after receiving the alarm signal.

Preferably, the shuttle further comprises an unlocking device, the unlocking device comprises an unlocking rod and a driving mechanism, and the driving mechanism is used for controlling the unlocking rod to move to the locking position or the unlocking position.

Preferably, the unlocking device further comprises a first sensor for detecting whether the unlocking lever is located at the locking position; the first sensor is also used for generating a first in-position signal when the unlocking rod reaches the locking position; the driving mechanism is also used for controlling the unlocking rod to stop acting when receiving the first in-place signal.

Preferably, the unlocking device further comprises a second sensor for detecting whether the unlocking rod is located at the unlocking position; the second sensor is also used for generating a second in-place signal when the unlocking rod reaches the unlocking position; the driving mechanism is also used for controlling the unlocking rod to stop acting when receiving the second in-place signal.

Preferably, the shuttle car further comprises a lifting positioning sensor and a lifting positioning detection point, wherein the lifting positioning sensor is used for detecting the lifting positioning detection point; the lifting positioning sensor is also used for sending a positioning signal when detecting the lifting positioning detection point; the controller is also used for stopping the lifting of the mobile platform when receiving the positioning signal.

Preferably, the shuttle car further comprises a lifting mechanism, the mobile platform is connected with the traveling mechanism through the lifting mechanism, and the lifting mechanism is used for lifting the mobile platform relative to the traveling mechanism; the lifting positioning sensor is positioned on the lifting mechanism, and the lifting positioning detection point is positioned on the traveling mechanism.

Preferably, the shuttle car further comprises a locking sensor for detecting whether the battery pack is in a locked state.

Preferably, a lock base and a lock connecting rod are arranged at the bottom of the electric vehicle, and the lock base is used for locking the battery pack; when the lock link moves relative to the lock base, the lock base is switched between a locked state and an unlocked state; the locking sensor is a visual sensor and is used for detecting whether the locking connecting rod is located at a locking position.

Preferably, the lock sensor is configured to detect an actual distance between the lock link and the lock base, the distance between the lock link and the lock base is a standard distance when the lock base is in the locked state, the controller is further configured to receive the actual distance detected by the lock sensor, the controller is further configured to compare the actual distance with the standard distance, and the controller is further configured to determine that the battery pack is in the locked state when the actual distance is the same as the standard distance.

The invention provides a shuttle vehicle control method which is used for controlling a shuttle vehicle to replace a battery pack at the bottom of an electric vehicle, wherein the shuttle vehicle comprises a moving platform and a traveling mechanism, the moving platform can move and lift relative to the traveling mechanism along the length direction of a vehicle body of the electric vehicle, the moving platform comprises a lower frame and a battery carrier, a first guide piece is arranged on the lower frame, and a positioning piece is arranged at the bottom of the electric vehicle; the battery carrier is provided with a second guide piece, and the second guide piece is used for clamping a positioning block of the battery pack; the shuttle vehicle control method comprises the following steps:

controlling the traveling mechanism to move to enable the shuttle car to be positioned below the electricity changing position of the electric vehicle;

controlling the mobile platform to move along the length direction of the body of the electric vehicle, and enabling the mobile platform to correspond to the battery replacement position; the method comprises the following steps: controlling the lower frame to move along the length direction of the body of the electric vehicle, so that the first guide piece corresponds to the positioning piece; and/or controlling the battery carrier to move along the length direction of the body of the electric vehicle, so that the second guide piece corresponds to the positioning block of the battery pack;

and controlling the mobile platform to ascend to enable the battery pack to be supported to the battery replacement position.

Preferably, an origin is arranged on the mobile platform;

controlling the mobile platform to move along the length direction of the body of the electric vehicle, and enabling the mobile platform to correspond to the battery replacement position; the method comprises the following steps:

establishing an origin coordinate system, wherein the standard coordinate of the origin is the coordinate of the origin when the mobile platform corresponds to the battery replacement position;

acquiring the actual coordinate of the origin, and acquiring the origin coordinate difference between the actual coordinate of the origin and the standard coordinate of the origin;

and controlling the mobile platform to move along the length direction of the electric vehicle body according to the origin coordinate difference until the origin is located at the position of the standard coordinate.

Preferably, a first origin point is arranged on a lower frame of the mobile platform;

establishing an origin coordinate system, wherein a first standard coordinate of the first origin is a coordinate of the first origin when the lower frame corresponds to the battery replacement position;

acquiring the actual coordinate of the first origin, and acquiring a first coordinate difference between the actual coordinate of the first origin and the first standard coordinate;

and controlling the lower frame to move along the length direction of the body of the electric vehicle according to the first coordinate difference until the first origin is located at the position of the first standard coordinate.

Preferably, the battery carrier of the mobile platform is provided with a second origin;

establishing an origin point coordinate system, wherein a second standard coordinate of the second origin point is a coordinate of the second origin point when the battery carrier corresponds to the battery replacement position;

acquiring the actual coordinate of the second origin, and acquiring a second coordinate difference between the actual coordinate of the second origin and the second standard coordinate;

and controlling the battery carrier to move along the length direction of the body of the electric vehicle according to the second coordinate difference until the second origin is located at the position of the second standard coordinate.

Preferably, the traveling mechanism is controlled to move, so that the shuttle car is positioned below the battery replacement position of the electric vehicle; the method comprises the following steps:

and controlling the travelling mechanism to move along the width direction of the electric vehicle body, so that the shuttle vehicle moves to the bottom of the electric vehicle.

Preferably, a positioning point is arranged on a walking channel of the shuttle vehicle along the width direction of the vehicle body of the electric vehicle, a positioning sensor is arranged on the walking mechanism, and the positioning sensor is used for detecting a signal of the positioning point;

the method comprises the following steps of controlling the travelling mechanism to move along the width direction of the electric vehicle body to enable the shuttle vehicle to move to the bottom of the electric vehicle, and comprising the following steps:

and controlling the travelling mechanism to move along the width direction of the electric vehicle body, and stopping the travelling mechanism when the positioning sensor detects a signal of the positioning point.

Preferably, the method further comprises the following steps of controlling the traveling mechanism to move, and enabling the shuttle car to be located below the battery replacement position of the electric vehicle:

detecting whether the mobile platform has a battery tray or not;

and/or detecting whether a battery pack is arranged above the mobile platform.

Preferably, the shuttle vehicle is provided with a limit sensor, a walking channel of the shuttle vehicle is provided with a limit detection point, and the limit sensor is used for detecting the limit detection point;

controlling the traveling mechanism to move to enable the shuttle car to be positioned below the electricity changing position of the electric vehicle; the method comprises the following steps:

and when the limit sensor detects the limit detection point, the walking mechanism is controlled to stop moving.

Preferably, the shuttle car further comprises an unlocking device, wherein an unlocking rod is arranged on the unlocking device and can move to a locking position or an unlocking position;

the method comprises the following steps of controlling the mobile platform to ascend, and enabling the battery pack to be supported to the battery replacement position, wherein the method comprises the following steps:

and controlling the unlocking rod to move to a locking position or an unlocking position.

Preferably, the unlocking device further comprises a first sensor for detecting whether the unlocking lever is located at the locking position;

controlling the unlocking lever to move to the locking position, comprising the steps of:

the first sensor detects that the unlocking rod reaches the locking position, and controls the unlocking rod to stop acting.

Preferably, the unlocking device further comprises a second sensor, and the second sensor is used for detecting whether the unlocking rod is located at the unlocking position or not;

controlling the unlocking rod to move to the unlocking position, comprising the following steps:

the second sensor detects that the unlocking rod reaches the unlocking position, and controls the unlocking rod to stop acting.

Preferably, the shuttle car further comprises a lifting positioning sensor and a lifting positioning detection point, wherein the lifting positioning sensor is used for detecting the lifting positioning detection point;

controlling the mobile platform to ascend to enable the battery pack to be supported to the battery replacement position, and the method comprises the following steps:

and when the lifting positioning sensor detects the signal of the lifting positioning detection point, stopping the lifting of the mobile platform.

Preferably, a lock base and a lock connecting rod are arranged at the bottom of the electric vehicle, and the lock connecting rod acts to switch the lock base between a locking state and an unlocking state; the shuttle car further comprises an unlocking device, the unlocking device is arranged on the mobile platform, the unlocking device further comprises an unlocking rod, and the end part of the unlocking rod is matched with the stress point of the lock connecting rod; the battery pack comprises a battery and a lock shaft arranged around the circumference of the battery; the lock base is provided with a lock groove used for accommodating the lock shaft, and the lock groove is provided with an outlet for disengaging the lock shaft;

controlling the mobile platform to ascend to enable the battery pack to be supported to the battery replacement position, and then, comprising:

enabling an unlocking rod of the unlocking device to prop against a stress point of the locking connecting rod, and enabling the battery carrier to support the battery pack;

controlling the battery carrier and the lower frame to move, so that the unlocking rod drives the lock connecting rod to act, and the lock base is in an unlocking state;

and controlling the battery carrier to drive the battery pack to move, so that the lock shaft of the battery pack moves to the outlet of the lock groove.

Preferably, the mobile platform is controlled to ascend, so that the battery pack is supported to the battery replacement position before; the method comprises the following steps:

and controlling an unlocking rod of the unlocking device to move so that the unlocking rod is aligned with the stress point of the lock connecting rod.

Preferably, the mobile platform comprises a battery carrier and a lower frame, the battery carrier is provided with a battery pack, and the battery carrier and the lower frame can move respectively; the battery pack comprises a battery and a lock shaft arranged around the circumference of the battery; the bottom of the electric vehicle is provided with a lock base, the lock base is provided with a lock groove for the lock shaft to enter, the lock groove comprises an entering section and a locking section which are communicated, the entering section is provided with an inlet for the lock shaft to enter, and a locking position is arranged in the locking section;

controlling the mobile platform to ascend, and enabling the lock shaft to enter the entering section of the lock groove and reach the junction of the entering section and the locking section;

and controlling the battery carrier to move, so that the lock shaft of the battery pack moves to the locking position of the locking section, and the lock shaft is locked by the lock base.

and controlling the battery carrier to move so that the lock shaft of the battery pack is aligned with the inlet of the inlet section.

Preferably, the shuttle car further comprises a locking sensor;

controlling the battery carrier to move, so that a lock shaft of the battery pack moves to a locking position of the locking section, and the lock shaft is locked by the lock base and then locked; the method comprises the following steps:

the locking sensor detects whether a lock shaft of the battery pack is locked by the lock base; and when the locking sensor detects that the lock shaft of the battery pack is locked by the lock base, the mobile platform is controlled to descend.

Preferably, a lock connecting rod is arranged at the bottom of the electric vehicle, and the lock connecting rod acts to switch the lock base between a locking state and an unlocking state; the lock-up sensor is a visual sensor,

the locking sensor detects whether a lock shaft of the battery pack is locked by the lock base; the method comprises the following steps:

setting the distance between the lock connecting rod and the lock base to be a standard distance when the lock base is in a locking state;

the locking sensor detects the actual distance between the lock connecting rod and the lock base;

comparing the actual distance with the standard distance;

when the actual distance is the same as the standard distance, the lock shaft of the battery pack is locked by the lock base.

The positive progress effects of the invention are as follows:

according to the shuttle car and the shuttle car control method, the moving platform capable of moving horizontally and lifting and the walking mechanism capable of walking are arranged, so that the shuttle car can realize unlocking and locking of the battery pack.

Drawings

Fig. 1 is a schematic structural view of a shuttle car according to embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of a moving platform of the shuttle car shown in fig. 1.

Fig. 3 is a schematic structural view of the mobile platform shown in fig. 2 after the battery tray is removed.

Fig. 4 is a schematic structural view of the shuttle car shown in fig. 1.

Fig. 5 is a schematic structural view of the unlocking device of the shuttle car shown in fig. 1.

Fig. 6 is a schematic structural view of a lock base and a lock link corresponding to the shuttle shown in fig. 1.

Fig. 7 is a schematic step diagram of a shuttle control method according to embodiment 2 of the present invention.

Fig. 8 is a schematic step view of a shuttle car control method according to embodiment 3 of the present invention.

Fig. 9 is a schematic step diagram of a shuttle control method according to embodiment 4 of the present invention.

Fig. 10 is a schematic step diagram of a shuttle control method according to embodiment 6 of the present invention.

Fig. 11 is a schematic step diagram of a shuttle control method according to embodiment 7 of the present invention.

Fig. 12 is a step diagram of a lock sensor detection method of the shuttle vehicle control method according to embodiment 7 of the present invention.

Description of the reference numerals

The device comprises a moving platform 1, a lower frame 11, a battery carrier 12, an upper frame 121, a battery tray 122, a traveling mechanism 2, a controller 3, an unlocking device 4, an unlocking rod 41, a driving mechanism 42, a first sensor 43, a second sensor 44, a first guide 5, a second guide 6, a first starting sensor 71, a second starting sensor 72, a positioning sensor 8, a limit sensor 9, a lifting positioning sensor 10, a lifting mechanism 20 and a locking sensor 30;

a lock base 100, a lock groove 101, an outlet 102, an inlet section 103, and a locking section 104;

lock link 200, force point 201.

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

Example 1

As shown in fig. 1 to 5, the present invention provides a shuttle car for replacing a battery pack at the bottom of an electric vehicle. The shuttle vehicle comprises a mobile platform 1, a traveling mechanism 2 and a controller 3, wherein the mobile platform 1 is positioned on the traveling mechanism 2; the controller 3 is used for controlling the travelling mechanism 2 to travel; the controller 3 is also used for controlling the mobile platform 1 to move relative to the travelling mechanism 2 along the length direction of the body of the electric vehicle; the controller 3 is also used for controlling the mobile platform 1 to lift relative to the walking mechanism 2.

The controller 3 controls the travelling mechanism 2 to travel, so that the shuttle car can move to the bottom of the electric vehicle; the controller 3 can control the mobile platform 1 to move along the length direction of the body of the electric vehicle, so that the mobile platform 1 can correspond to the lock base 100 at the bottom of the electric vehicle; the controller 3 lifts the mobile platform 1, can lift and install the battery pack into the lock base 100 at the bottom of the electric vehicle, or can support the battery pack in the lock base 100 of the electric vehicle; the controller 3 can also control the mobile platform 1 to move, so that the battery pack on the mobile platform 1 is locked in the lock base 100 or separated from the lock base 100 after being unlocked.

Wherein, the mobile platform 1 includes a lower frame 11 and a battery carrier 12, and the controller 3 can control the lower frame 11 and the battery carrier 12 to move respectively. The lower frame 11 is provided with an unlocking device 4, the battery carrier 12 is used for carrying a battery pack, and the unlocking device 4 and the battery pack can be moved respectively by moving the lower frame 11 and the battery carrier 12 respectively, so that the mobile platform 1 can realize locking and unlocking of the battery pack.

And, be equipped with first guide 5 on the moving platform 1, the bottom of electric motor car is equipped with the setting element, and first guide 5 is used for with setting element looks adaptation. The mobile platform 1 is provided with a second guide part 6, the battery pack is provided with a positioning block, and the second guide part 6 is used for being matched with the positioning block. The first guide 5 and the second guide 6 are used for positioning the relative positions of the mobile platform 1, the lock base 100 and the battery pack. Specifically, the first guide 5 is located on the lower frame 11 to position the relative position between the lower frame 11 and the latch base 100, and the second guide 6 is located on the battery carrier 12 to position the relative position between the battery carrier 12 and the battery pack.

One specific positioning of the lower frame 11 is: the lower frame 11 is provided with a first origin, and the standard coordinate of the first origin is the coordinate of the first origin when the lower frame 11 corresponds to the battery replacement position; the controller 3 is configured to control the lower frame 11 to move along the body length direction of the electric vehicle according to a coordinate difference between the actual coordinate of the first origin and the standard coordinate of the first origin. By setting the first origin, the lower frame 11 can be controlled to move to the position of the standard coordinate, so that the lower frame 11 corresponds to the battery replacement position, specifically, the first guide 5 on the lower frame 11 corresponds to the positioning element of the electric vehicle.

One specific orientation of the battery carrier 12 is: the battery carrier 12 is provided with a second origin, and the standard coordinate of the second origin is the coordinate of the second origin when the battery carrier 12 corresponds to the battery replacement position; the controller 3 is also used for controlling the battery carrier 12 to move along the length direction of the body of the electric vehicle according to the coordinate difference between the actual coordinate of the second origin and the standard coordinate of the second origin. By setting the second origin, the battery carrier 12 can be controlled to move to the position of the standard coordinate, so that the battery carrier 12 corresponds to the battery replacement position, specifically, the second guide 6 on the battery carrier 12 corresponds to the positioning block of the battery pack.

The battery carrier 12 further includes an upper frame 121 and a battery tray 122, the battery tray 122 being located on the upper frame 121; the shuttle vehicle further comprises a first starting sensor 71, the first starting sensor 71 is arranged on the upper frame 121, the first starting sensor 71 is used for detecting whether the battery tray 122 is arranged above the upper frame 121, the first starting sensor 71 is further used for generating a first starting signal when the battery tray 122 is arranged above the upper frame 121, the first starting sensor 71 is further used for sending the first starting signal to the controller 3, and the controller 3 is further used for controlling the shuttle vehicle to move after receiving the first starting signal.

The shuttle vehicle further comprises a second starting sensor 72, the second starting sensor 72 is arranged on the moving platform 1, the second starting sensor 72 is used for detecting whether a battery pack is arranged above the moving platform 1 or not, the second starting sensor 72 is also used for generating a second starting signal when the battery pack is arranged above the moving platform 1, the second starting sensor 72 is also used for sending the second starting signal to the controller 3, and the controller 3 is also used for controlling the shuttle vehicle to move after receiving the second starting signal.

The first start sensor 71 is used to detect whether there is a battery tray 122, and the second start sensor 72 is used to detect whether there is a battery pack. When the shuttle vehicle is used for detaching the battery pack, the shuttle vehicle starts to be started to detach the battery pack only when the first starting sensor 71 detects the presence of the battery tray 122. When the shuttle car is used for installing the battery pack, the shuttle car starts to be started to install the battery pack only when the first starting sensor 71 detects that the battery tray 122 exists and the second starting sensor 72 detects that the battery pack exists.

The shuttle car is equipped with the setpoint along the walking passageway of the automobile body width direction of electric motor car, is equipped with positioning sensor 8 on the running gear 2, and positioning sensor 8 is used for detecting the signal of setpoint, and positioning sensor 8 still is used for taking place the locating signal when detecting the setpoint and gives controller 3, and controller 3 still is used for controlling running gear 2 to stop moving after receiving the locating signal. And the positioning sensor 8 is used for determining the position of the shuttle vehicle walking along the width direction of the vehicle body of the electric vehicle.

The shuttle car is provided with a limit sensor 9, a limit detection point is arranged on a walking channel of the shuttle car, the limit sensor 9 is used for detecting the limit detection point, the limit sensor 9 is also used for sending an alarm signal after detecting the limit detection point, and the controller 3 is also used for controlling the walking mechanism 2 to stop moving after receiving the alarm signal. The limit detection points can be multiple and are arranged at multiple limit positions on the walking channel. In the normal operation process, the shuttle car cannot move to the limit position; only in the event of an error does the shuttle move to the limit position. And when the shuttle car moves to the limit position, the limit sensor sends an alarm signal after detecting the limit detection point, and the controller 3 controls the travelling mechanism 2 to stop moving after receiving the alarm signal.

As shown in fig. 6, the lock base 100 disposed at the bottom of the electric vehicle is connected to the lock link 200, and the lock link 200 operates to switch the lock base 100 between a locked state and an unlocked state; the battery pack comprises a battery and a lock shaft arranged around the circumference of the battery; the lock base 100 has a lock slot 101, the lock slot 101 being for receiving a lock shaft, the lock slot 101 having an exit 102 for the lock shaft to disengage. Specifically, the locking groove 101 includes an inlet section 103 and a locking section 104 which are communicated with each other, the inlet section 103 is provided with an inlet for the locking shaft to enter, the inlet is also an outlet 102 for the locking shaft to disengage, and a locking position is provided in the locking section 104.

As shown in fig. 5, the unlocking device 4 includes an unlocking lever 41 and a driving mechanism 42, and the driving mechanism 42 is used to control the unlocking lever 41 to be movable to the locking position or the unlocking position. When the shuttle vehicle unloads the battery pack, the unlocking rod 41 moves to the unlocking position, namely the end part of the unlocking rod 41 is matched with the stress point 201 of the lock connecting rod 200; when the shuttle vehicle mounts the battery pack, the lock release lever 41 moves to the lock position, that is, the lock release lever 41 avoids the lock link 200, and the lock release lever 41 prevents the lock link 200 from being obstructed.

The unlocking device 4 further includes a first sensor 43, and the first sensor 43 is used for detecting whether the unlocking lever 41 is located at the locking position; the first sensor 43 is also used to generate a first-in signal when the lock release lever 41 reaches the lock position; the driving mechanism 42 is also used for controlling the unlocking lever 41 to stop when receiving the first in-position signal. The lock release lever 41 can be stopped at the lock position by providing the first sensor 43.

The unlocking device 4 further includes a second sensor 44, and the second sensor 44 is used for detecting whether the unlocking rod 41 is located at the unlocking position; the second sensor 44 is also used for generating a second in-position signal when the unlocking lever 41 reaches the unlocking position; the driving mechanism 42 is also used for controlling the unlocking rod 41 to stop when receiving the second in-position signal. By providing the second sensor 44, the lock release lever 41 can be stopped at the lock release position.

As shown in fig. 4, the shuttle car further includes a lifting location sensor 10 and a lifting location detection point, the lifting location sensor 10 is used for detecting the lifting location detection point; the lifting positioning sensor 10 is also used for sending a positioning signal when detecting a lifting positioning detection point; the controller 3 is also used for stopping the lifting of the mobile platform 1 when receiving the positioning signal. When the lifting positioning sensor 10 detects the lifting positioning detection point, the height of the mobile platform 1 is the height at which the mobile platform 1 just holds the battery pack.

As shown in fig. 4, the shuttle vehicle further includes a lifting mechanism 20, the mobile platform 1 is connected to the traveling mechanism 2 through the lifting mechanism 20, and the lifting mechanism 20 is used for lifting the mobile platform 1 relative to the traveling mechanism 2; the lifting positioning sensor 10 is positioned on the lifting mechanism 20, and the lifting positioning detection point is positioned on the traveling mechanism 2. When the elevation positioning sensor 10 detects the elevation positioning detection point, it indicates that the elevation mechanism 20 is elevated to the position, and the height of the mobile platform 1 reaches a predetermined position.

As shown in fig. 4, the shuttle car further includes a lock sensor 30, and the lock sensor 30 is used to detect whether the battery pack is in a locked state. When the lock base 100 and the lock link 200 are disposed at the bottom of the electric vehicle, the lock sensor 30 may be a visual sensor, and the lock sensor 30 is used to detect whether the lock link 200 is in the lock position.

One specific detection method of the lock sensor 30 is as follows: the lock sensor 30 is configured to detect an actual distance between the lock link 200 and the lock base 100, the distance between the lock link 200 and the lock base 100 is a standard distance when the lock base 100 is in the lock state, the controller 3 is further configured to receive the actual distance detected by the lock sensor 30, the controller 3 is further configured to compare the actual distance with the standard distance, and the controller 3 is further configured to determine that the battery pack is in the lock state when the actual distance is the same as the standard distance.

Example 2

As shown in fig. 7, the present invention further provides a shuttle vehicle control method for controlling the shuttle vehicle to replace the battery pack at the bottom of the electric vehicle, wherein the shuttle vehicle can use the shuttle vehicle shown in embodiment 1.

The shuttle vehicle control method comprises the following steps:

s1, controlling the traveling mechanism 2 to move, and enabling the shuttle car to be located below the battery replacement position of the electric vehicle;

s2, controlling the mobile platform 1 to move along the length direction of the electric vehicle body, and enabling the mobile platform 1 to correspond to the battery replacement position;

and S3, controlling the mobile platform 1 to ascend, and enabling the battery pack to be supported to the battery replacement position.

By the shuttle vehicle control method, the shuttle vehicle can be moved to the position below the battery replacing position of the electric vehicle, and then the battery pack positioned at the battery replacing position of the electric vehicle is supported by moving and lifting the moving platform 1, or the battery pack positioned on the moving platform 1 is supported to the battery replacing position of the electric vehicle.

Wherein, the mobile platform 1 is provided with a first guide piece 5, and the bottom of the electric vehicle is provided with a positioning piece; step S2 includes:

and controlling the moving platform 1 to move along the length direction of the body of the electric vehicle, so that the first guide piece 5 corresponds to the positioning piece.

The mobile platform 1 is provided with a second guide part 6, and the second guide part 6 is used for clamping a positioning block of the battery pack; step S2 includes:

and controlling the moving platform 1 to move along the length direction of the body of the electric vehicle, so that the second guide piece 6 corresponds to the positioning block of the battery pack.

Specifically, the mobile platform 1 comprises a lower frame 11 and a battery carrier 12, wherein the lower frame 11 is provided with a first guide 5, and the bottom of the electric vehicle is provided with a positioning element; the battery carrier 12 is provided with a second guide part 6, and the second guide part 6 is used for clamping a positioning block of the battery pack; step S2 includes:

controlling the lower frame 11 to move along the length direction of the body of the electric vehicle, so that the first guide piece 5 corresponds to the positioning piece;

the battery carrier 12 is controlled to move along the length direction of the body of the electric vehicle, so that the second guide 6 corresponds to the positioning block of the battery pack.

In this way, the mobile platform 1 can correspond to the battery replacing position and the position of the battery pack, specifically, the lower frame 11 corresponds to the battery replacing position, and the battery carrier 12 corresponds to the position of the battery pack.

Wherein, step S1 includes: and controlling the travelling mechanism 2 to move along the width direction of the electric vehicle body so as to enable the shuttle vehicle to move to the bottom of the electric vehicle.

The shuttle vehicle is provided with positioning points on a walking channel along the width direction of the vehicle body of the electric vehicle, the walking mechanism 2 is provided with a positioning sensor 8, and the positioning sensor 8 is used for detecting signals of the positioning points; the method for controlling the traveling mechanism 2 to move along the width direction of the electric vehicle body to enable the shuttle vehicle to move to the bottom of the electric vehicle comprises the following steps:

the traveling mechanism 2 is controlled to move along the width direction of the electric vehicle body, and when the positioning sensor 8 detects a signal of a positioning point, the traveling mechanism 2 stops moving.

The positioning point is used to determine the stop position of the traveling mechanism 2 moving in the vehicle body width direction of the electric vehicle. After the travelling mechanism 2 reaches the positioning point, the travelling mechanism can also move along the length direction of the electric vehicle body, so that the shuttle vehicle is positioned below the battery replacement position of the electric vehicle.

When the shuttle car is used for locking the battery pack, before step S1, the shuttle car further includes: detecting whether the mobile platform 1 has a battery tray 122; and detecting whether a battery pack is arranged above the mobile platform 1. When the shuttle car is used for unlocking the battery pack, before step S1, the method further includes: it is detected whether the mobile platform 1 has the battery tray 122.

The shuttle car is provided with a limit sensor 9, a walking channel of the shuttle car is provided with a limit detection point, and the limit sensor 9 is used for detecting the limit detection point. Step S1 includes: and when the limit sensor 9 detects a limit detection point, the walking mechanism 2 is controlled to stop moving. In the normal operation process, the shuttle car cannot move to the limit detection point; only when an error occurs, the shuttle car can move to the limit detection point. And when the shuttle car moves to the limit detection point, the fault of the shuttle car in walking is indicated, and the walking mechanism 2 stops moving.

The shuttle car also comprises a lifting positioning sensor 10 and lifting positioning detection points, wherein the lifting positioning sensor 10 is used for detecting the lifting positioning detection points; step S3 includes:

when the elevation registration sensor 10 detects a signal of the elevation registration detection point, the elevation of the moving platform 1 is stopped.

When the lifting positioning sensor 10 detects the lifting positioning detection point, the height of the mobile platform 1 is the height at which the mobile platform 1 just holds the battery pack.

Example 3

As shown in fig. 8, the shuttle control method of the present embodiment is obtained by adding the following steps to embodiment 2.

An original point is arranged on the mobile platform 1; step S2 includes:

s21, establishing an origin coordinate system, wherein the standard coordinate of the origin is the coordinate of the origin when the mobile platform 1 corresponds to the battery replacement position;

s22, acquiring the actual coordinate of the origin, and acquiring the origin coordinate difference between the actual coordinate of the origin and the standard coordinate of the origin;

and S23, controlling the moving platform 1 to move along the length direction of the electric vehicle body according to the origin coordinate difference until the origin is located at the position of the standard coordinate.

By the control method, the mobile platform 1 can be moved to the position corresponding to the battery replacement position, and the position corresponding accuracy between the mobile platform 1 and the battery replacement position is ensured.

Example 4

As shown in fig. 9, the shuttle control method of the present embodiment is obtained by adding the following steps to embodiment 2. The mobile platform 1 includes a lower frame 11 and a battery carrier 12, wherein the lower frame 11 is provided with a first origin, and the battery carrier 12 is provided with a second origin.

Step S2, including the steps of:

s210, establishing an origin point coordinate system, wherein a first standard coordinate of a first origin point is a coordinate where the first origin point is located when the lower frame 11 corresponds to the battery replacement position, and a second standard coordinate of a second origin point is a coordinate where the second origin point is located when the battery carrier 12 corresponds to the battery replacement position;

s220, acquiring an actual coordinate of the first origin, and acquiring a first coordinate difference between the actual coordinate of the first origin and the first standard coordinate;

s230, controlling the lower frame 11 to move along the length direction of the body of the electric vehicle according to the first coordinate difference until the first origin is located at the position of the first standard coordinate;

s240, acquiring the actual coordinate of the second origin, and acquiring a second coordinate difference between the actual coordinate of the second origin and the second standard coordinate;

and S250, controlling the battery carrier 12 to move along the length direction of the body of the electric vehicle according to the second coordinate difference until the second origin is located at the position of the second standard coordinate.

Example 5

The shuttle car control method of the embodiment is additionally provided with the following steps on the basis of the embodiment 2. The shuttle car further comprises an unlocking device 4, wherein an unlocking rod 41 is arranged on the unlocking device 4, and the unlocking rod 41 can move to a locking position or an unlocking position;

before step S3, the method further includes the following steps: the lock release lever 41 is controlled to move to the lock position or the unlock position. When the shuttle vehicle unloads the battery pack, the unlocking rod 41 moves to the unlocking position, namely the end part of the unlocking rod 41 is matched with the stress point 201 of the lock connecting rod 200; when the shuttle vehicle mounts the battery pack, the lock release lever 41 moves to the lock position, that is, the lock release lever 41 avoids the lock link 200, and the lock release lever 41 prevents the lock link 200 from being obstructed.

The unlocking device 4 further includes a first sensor 43, and the first sensor 43 is used for detecting whether the unlocking lever 41 is located at the locking position; controlling the lock release lever 41 to move to the lock position includes the steps of: the first sensor 43 detects that the lock release lever 41 reaches the lock position, and controls the lock release lever 41 to stop operating. The lock release lever 41 can be stopped at the lock position by providing the first sensor 43.

The unlocking device 4 further includes a second sensor 44, and the second sensor 44 is used for detecting whether the unlocking rod 41 is located at the unlocking position; controlling the lock release lever 41 to move to the lock release position includes the steps of: the second sensor 44 detects that the lock release lever 41 reaches the lock release position, and controls the lock release lever 41 to stop operating. By providing the second sensor 44, the lock release lever 41 can be stopped at the lock release position.

Example 6

The shuttle car control method of the present embodiment is shown in fig. 10. When the shuttle car is used for unlocking the battery pack, the following unlocking step is added on the basis of the embodiment 2.

After step S3, the method includes:

s4, the unlocking lever 41 of the unlocking device 4 is pressed against the force bearing point 201 of the lock link 200, and the battery carrier 12 holds the battery pack;

s5, controlling the battery carrier 12 and the lower frame 11 to move, so that the unlocking lever 41 drives the lock link rod 200 to move, and the lock base 100 is in an unlocking state;

and S6, controlling the battery carrier 12 to drive the battery pack to move, and enabling the lock shaft of the battery pack to move to the outlet 102 of the lock groove 101.

The unlocking rod 41 and the lock connecting rod 200 are driven to act through the lower frame 11, so that the lock base 100 is in an unlocking state; the battery carrier 12 drives the battery pack to move, so that the lock shaft of the battery pack moves to the outlet 102 of the lock groove 101, the lock shaft of the battery pack can move out of the lock groove 101, and the battery pack can be separated from the lock base 100.

Before step S3, the method further includes: the unlocking lever 41 of the unlocking means 4 is controlled to move so that the unlocking lever 41 is aligned with the force point 201 of the lock link 200.

Example 7

The shuttle control method of the embodiment is shown in fig. 11. When the shuttle car is used for locking the battery pack, the following locking step is added on the basis of embodiment 2.

After step S3, the method includes:

s40, controlling the mobile platform 1 to ascend, and enabling the lock shaft to enter the entering section 103 of the lock groove 101 and reach the junction of the entering section 103 and the locking section 104;

s50, the battery carrier 12 is controlled to move, so that the lock shaft of the battery pack moves to the locking position of the locking section 104, and the lock shaft is locked by the lock base 100.

By controlling the moving platform 1 to ascend and then controlling the battery carrier 12 to move alone, the lock shaft of the battery pack can move along the lock slot 101 until the lock shaft moves to the locking position of the locking section 104, and the lock shaft is locked by the lock base 100.

Before step S3, the method further includes: the battery carrier 12 is controlled to move so that the lock shaft of the battery pack is aligned with the entrance to the entry section 103.

Wherein, the shuttle further comprises a locking sensor 30; step S50, thereafter;

the lock sensor 30 detects whether the lock shaft of the battery pack is locked by the lock base 100; when the locking sensor 30 detects that the locking shaft of the battery pack is locked by the lock base 100, the mobile platform 1 is controlled to descend.

When the mobile platform 1 descends, the battery pack is locked by the lock base 100, the mobile platform 1 is separated from the battery pack, and the battery pack is left on the electric vehicle.

Since the distance between the lock link 200 and the lock base 100 is determined when the lock base 100 is in the locked state, whether the lock base 100 is in the locked state can be judged by the distance between the lock link 200 and the lock base 100. And the distance can be judged by a visual sensor. Specifically, as shown in fig. 12, the lock sensor 30 is a visual sensor, and the lock sensor 30 is used to detect whether the lock shaft of the battery pack is locked by the lock base 100, and includes the following steps:

s61, setting the distance between the lock connecting rod 200 and the lock base 100 as a standard distance when the lock base 100 is in a locking state;

s62, the lock sensor 30 detects the actual distance between the lock link 200 and the lock base 100;

s63, comparing the actual distance with the standard distance;

and S64, locking the lock shaft of the battery pack by the lock base 100 when the actual distance is the same as the standard distance.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. A shuttle car for replacing a battery pack of a bottom of an electric vehicle, the shuttle car comprising:

a mobile platform;

the moving platform is positioned on the travelling mechanism;

the mobile platform comprises a lower frame and a battery carrier, and the controller can control the lower frame and the battery carrier to move respectively; the lower frame is provided with a first guide piece, the bottom of the electric vehicle is provided with a positioning piece, and the first guide piece is used for being matched with the positioning piece; the battery pack is characterized in that a second guide piece is arranged on the battery carrier, a positioning block is arranged on the battery pack, and the second guide piece is used for being matched with the positioning block.

2. The shuttle vehicle of claim 1, wherein: a first origin point is arranged on the lower frame, and the standard coordinate of the first origin point is the coordinate of the first origin point when the lower frame corresponds to the battery replacement position; the controller is used for controlling the lower frame to move along the length direction of the body of the electric vehicle according to the coordinate difference between the actual coordinate of the first origin and the standard coordinate of the first origin.

3. The shuttle vehicle of claim 1, wherein: the battery carrier is provided with a second origin, and the standard coordinate of the second origin is the coordinate of the second origin when the battery carrier corresponds to the battery replacement position; the controller is further used for controlling the battery carrier to move along the length direction of the body of the electric vehicle according to the coordinate difference between the actual coordinate of the second origin and the standard coordinate of the second origin.

4. The shuttle vehicle of claim 1, wherein: the battery carrier also comprises an upper frame and a battery tray, and the battery tray is positioned on the upper frame; the shuttle car further comprises a first starting sensor, the first starting sensor is arranged on the upper frame and used for detecting whether the battery tray is arranged above the upper frame or not, the first starting sensor is further used for generating a first starting signal when the battery tray is arranged above the upper frame, the first starting sensor is further used for sending the first starting signal to the controller, and the controller is further used for controlling the shuttle car to move after receiving the first starting signal.

5. The shuttle vehicle of claim 1, wherein: the shuttle car further comprises a second starting sensor, the second starting sensor is arranged on the mobile platform and used for detecting whether a battery pack is arranged above the mobile platform or not, the second starting sensor is further used for generating a second starting signal when the battery pack is arranged above the mobile platform, the second starting sensor is further used for sending the second starting signal to the controller, and the controller is further used for controlling the shuttle car to move after receiving the second starting signal.

6. The shuttle vehicle of claim 1, wherein: the shuttle vehicle is provided with positioning points on a traveling channel along the width direction of the vehicle body of the electric vehicle, the traveling mechanism is provided with a positioning sensor, the positioning sensor is used for detecting signals of the positioning points, the positioning sensor is also used for generating positioning signals to the controller when detecting the positioning points, and the controller is also used for controlling the traveling mechanism to stop moving after receiving the positioning signals.

7. The shuttle vehicle of claim 1, wherein: the shuttle car is provided with a limit sensor, a limit detection point is arranged on a walking channel of the shuttle car, the limit sensor is used for detecting the limit detection point, the limit sensor is also used for sending an alarm signal after detecting the limit detection point, and the controller is also used for controlling the walking mechanism to stop moving after receiving the alarm signal.

8. The shuttle vehicle of claim 1, wherein: the shuttle car further comprises an unlocking device, the unlocking device comprises an unlocking rod and a driving mechanism, and the driving mechanism is used for controlling the unlocking rod to move to a locking position or an unlocking position.

9. The shuttle of claim 8, wherein the unlocking device further comprises a first sensor for detecting whether the unlocking lever is in the locked position; the first sensor is also used for generating a first in-position signal when the unlocking rod reaches the locking position; the driving mechanism is also used for controlling the unlocking rod to stop when receiving the first in-place signal.

10. The shuttle of claim 8, wherein the unlocking device further comprises a second sensor for detecting whether the unlocking lever is in the unlocked position; the second sensor is also used for generating a second in-place signal when the unlocking rod reaches the unlocking position; the driving mechanism is also used for controlling the unlocking rod to stop acting when receiving the second in-place signal.

11. The shuttle vehicle of claim 1, wherein: the shuttle car further comprises a lifting positioning sensor and a lifting positioning detection point, and the lifting positioning sensor is used for detecting the lifting positioning detection point; the lifting positioning sensor is also used for sending a positioning signal when detecting the lifting positioning detection point; the controller is also used for stopping the lifting of the mobile platform when receiving the positioning signal.

12. The shuttle vehicle of claim 11, wherein: the shuttle car further comprises a lifting mechanism, the moving platform is connected with the travelling mechanism through the lifting mechanism, and the lifting mechanism is used for lifting the moving platform relative to the travelling mechanism; the lifting positioning sensor is positioned on the lifting mechanism, and the lifting positioning detection point is positioned on the traveling mechanism.

13. The shuttle of claim 1, further comprising a lock sensor to detect whether the battery pack is in a locked state.

14. The shuttle of claim 13, wherein a lock base and a lock link are provided at a bottom of the electric vehicle, the lock base for locking the battery pack; when the lock link moves relative to the lock base, the lock base is switched between a locked state and an unlocked state; the locking sensor is a visual sensor and is used for detecting whether the locking connecting rod is located at a locking position.

15. The shuttle of claim 14, wherein the lock sensor is configured to detect an actual distance between the lock link and the lock base, the distance between the lock link and the lock base being a standard distance when the lock base is in the locked state, the controller is further configured to receive the actual distance detected by the lock sensor, the controller is further configured to compare the actual distance to the standard distance, and the controller is further configured to determine that the battery pack is in the locked state when the actual distance is the same as the standard distance.

16. A shuttle vehicle control method is used for controlling the shuttle vehicle to replace a battery pack at the bottom of an electric vehicle, the shuttle vehicle comprises a moving platform and a traveling mechanism, the moving platform can move and lift relative to the traveling mechanism along the length direction of a vehicle body of the electric vehicle, the moving platform comprises a lower frame and a battery carrier, the lower frame is provided with a first guide piece, and the bottom of the electric vehicle is provided with a positioning piece; the battery carrier is provided with a second guide part, and the second guide part is used for clamping a positioning block of the battery pack; the shuttle vehicle control method is characterized by comprising the following steps:

controlling the traveling mechanism to move so that the shuttle car is positioned below the battery replacement position of the electric vehicle;

17. The shuttle control method of claim 16, wherein the moving platform is provided with an origin;

18. The shuttle control method of claim 16, wherein a lower frame of the mobile platform is provided with a first origin;

19. The shuttle control method of claim 16, wherein the battery carrier of the mobile platform defines a second origin point;

20. The shuttle control method of claim 16,

21. The shuttle vehicle control method according to claim 20, wherein a travel passage of the shuttle vehicle along a vehicle body width direction of the electric vehicle is provided with a positioning point, the travel mechanism is provided with a positioning sensor, and the positioning sensor is used for detecting a signal of the positioning point;

the method comprises the following steps of controlling the traveling mechanism to move along the width direction of the electric vehicle body to enable the shuttle vehicle to move to the bottom of the electric vehicle, and comprises the following steps:

22. The shuttle vehicle control method according to claim 16, wherein the traveling mechanism is controlled to move so that the shuttle vehicle is located below a battery replacement position of the electric vehicle, and before, further comprising the steps of:

detecting whether the mobile platform has a battery tray or not;

and/or detecting whether a battery pack is arranged above the mobile platform.

23. The shuttle vehicle control method according to claim 16, wherein the shuttle vehicle is provided with a limit sensor, a travel passage of the shuttle vehicle is provided with a limit detection point, and the limit sensor is used for detecting the limit detection point;

24. The shuttle as claimed in claim 16, further comprising an unlocking device, wherein the unlocking device is provided with an unlocking lever, and the unlocking lever can move to a locking position or an unlocking position;

25. The shuttle control method of claim 24, wherein the unlocking device further includes a first sensor for detecting whether the unlocking lever is in the locked position;

26. The shuttle control method of claim 24, wherein the unlocking device further includes a second sensor for detecting whether the unlocking lever is in the unlocking position;

27. The shuttle control method of claim 16, wherein the shuttle further comprises a lift registration sensor and a lift registration detection point, the lift registration sensor being configured to detect the lift registration detection point;

and when the lifting positioning sensor detects a signal of the lifting positioning detection point, stopping the lifting of the mobile platform.

28. The shuttle control method according to claim 16, wherein a lock base and a lock link are provided at a bottom of the electric vehicle, and the lock link operates to switch the lock base between a locked state and an unlocked state; the shuttle car further comprises an unlocking device, the unlocking device is arranged on the movable platform, the unlocking device further comprises an unlocking rod, and the end part of the unlocking rod is matched with the stress point of the locking connecting rod; the battery pack comprises a battery and a lock shaft arranged around the circumference of the battery; the lock base is provided with a lock groove used for accommodating the lock shaft, and the lock groove is provided with an outlet for disengaging the lock shaft;

the unlocking rod of the unlocking device is made to prop against the stress point of the lock connecting rod, and the battery carrier supports the battery pack;

29. The shuttle vehicle control method according to claim 28, wherein the mobile platform is controlled to ascend, so that the battery pack is supported to the battery replacement position before; the method comprises the following steps:

30. The shuttle vehicle control method according to claim 16, wherein the moving platform includes a battery carrier and a lower frame, the battery carrier is provided with a battery pack, and the battery carrier and the lower frame are respectively movable; the battery pack comprises a battery and a lock shaft arranged around the circumference of the battery; the bottom of the electric vehicle is provided with a lock base, the lock base is provided with a lock groove for the lock shaft to enter, the lock groove comprises an entering section and a locking section which are communicated, the entering section is provided with an inlet for the lock shaft to enter, and a locking position is arranged in the locking section;

31. The shuttle vehicle control method according to claim 30, wherein the mobile platform is controlled to ascend, so that the battery pack is supported to the battery replacement position before; the method comprises the following steps:

32. A shuttle control method as claimed in claim 30, wherein said shuttle further includes a lock-up sensor;

33. The shuttle control method of claim 32, wherein a lock link is provided at a bottom of the electric vehicle, the lock link being actuated to switch the lock base between a locked state and an unlocked state; the lock-up sensor is a visual sensor,

comparing the actual distance with the standard distance;