Vehicles, battery swap stations and vehicle quick-swap battery systems

Abstract

The present invention discloses a vehicle, a battery swap station and a vehicle quick-change battery system. The vehicle control system of the vehicle is used to detect the working state of the electronic parking controller of the vehicle in real time and send it to the battery swap controller of the battery swap station, so that when the battery swap controller starts positioning the vehicle, it determines whether the electronic parking controller of the vehicle is in an unlocked state, and controls the battery swap equipment of the battery swap station to locate the vehicle if it is, and sends an EPB unlock request to the vehicle control system of the vehicle if it is not; the vehicle control system of the vehicle controls the electronic parking controller to perform a parking release operation upon receiving the EPB unlock request, and sends an EPB successful unlock signal to the battery swap controller upon detecting that the electronic parking controller switches to an unlocked state, so that the battery swap controller controls the battery swap equipment of the battery swap station to locate the vehicle. The embodiment of the present invention can effectively solve the problem that the vehicle is easily damaged during the positioning process of battery swapping.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a vehicle, a battery replacement station and a vehicle quick-change battery system. Background Art

[0002] The number of pure electric vehicles put into operation in urban taxis and online ride-hailing vehicles has gradually increased. There are two main ways to replenish battery power: charging and battery replacement. The battery replacement method means that the battery pack carried by the vehicle has a quick-change installation structure. When the vehicle is low on power, go to the battery replacement station and use automated equipment to complete the battery replacement within 3 to 5 minutes. The emergence of quick-change battery technology has increased the speed of vehicle power replenishment and improved the efficiency of vehicle operation. At present, before replacing the battery of a vehicle, it is necessary to position the vehicle through the battery replacement equipment. The specific process is as follows: First, after the vehicle is parked according to the work station requirements, the guide groove of the battery replacement equipment is docked with the vehicle when it is lifted, and the positioning of the vehicle is achieved through mechanical guidance. In the process of implementing the present invention, the inventors discovered that the following technical problems exist in the prior art: vehicles usually have an EPB (Electronic Park Brake) function. After the vehicle is shifted into P gear and the engine is turned off, the EPB of the vehicle will automatically control the brake caliper to clamp. In this case, the vehicle will lose its flexibility in the X-axis direction. However, due to vehicle assembly errors, battery swapping equipment positioning errors, and vehicle parking errors, the alignment accuracy of the battery swapping equipment and the vehicle will be affected. If the battery swapping equipment positions the vehicle when the vehicle loses its flexibility in the X-axis direction, the guide grooves on the battery swapping equipment will easily impact the positioning-related components on the vehicle, thereby causing stress damage. Once the positioning-related components on the vehicle are damaged, the vehicle will be unable to be positioned during the battery swapping process, resulting in the inability to remove and install the battery pack normally, thereby affecting the normal battery swapping of the vehicle. Summary of the invention

[0003] The embodiments of the present invention provide a vehicle, a battery swap station and a vehicle quick-change battery system, which can effectively solve the problem that the vehicle is easily damaged by the battery swap equipment due to the loss of flexibility in the X-axis direction during the positioning process of the battery swap.

[0004] An embodiment of the present invention provides a vehicle, including a vehicle body, a quick-change battery pack, a vehicle control system and an electronic parking controller; wherein:

[0005] The vehicle control system is used to detect the working state of the electronic parking controller in real time and send it to the battery swap controller of the battery swap station; wherein the working state of the electronic parking controller is used by the battery swap controller of the battery swap station to determine whether the electronic parking controller is in an unlocked state when the positioning of the vehicle starts, and control the battery swap equipment of the battery swap station to locate the vehicle if yes, and send an EPB unlock request to the vehicle control system if no;

[0006] The vehicle control system is also used to control the electronic parking controller to perform a parking release operation when receiving the EPB unlocking request, and to send an EPB success unlocking signal to the battery swapping controller when detecting that the current state of the electronic parking controller is switched to an unlocked state; wherein the EPB success unlocking signal is used to trigger the battery swapping controller to control the battery swapping equipment of the battery swapping station to locate the vehicle.

[0007] As an improvement of the above solution, the vehicle further includes a battery replacement switch;

[0008] The battery-swapping switch is used to send a battery-swapping switch-on signal to the vehicle control system when it is turned on;

[0009] The vehicle control system is also used to send a keep unlocking instruction to the electronic parking controller when receiving the battery replacement switch on signal, so that the electronic parking controller always remains in the unlocked state.

[0010] As an improvement of the above solution, the quick-change battery pack includes a power battery pack, a quick-change connector, a battery replacement reminder switch, a quick-change bracket and a locking device; wherein,

[0011] The quick-change bracket is mounted on the chassis of the vehicle body, the power battery pack is fixed to the quick-change bracket through the locking device, and the electrical interface of the power battery pack is connected to the vehicle body through the quick-change connector;

[0012] The battery replacement reminder switch is used to send a battery replacement reminder signal to the vehicle control system when it is turned on by the battery replacement device; wherein the operation of the battery replacement device to turn on the battery replacement reminder switch is triggered by the battery replacement controller after determining that the battery replacement device has completed positioning the vehicle and before controlling the battery replacement device to replace the battery of the quick-change battery pack;

[0013] The vehicle control system is also used to control the vehicle to power off at high voltage when receiving the battery replacement reminder signal.

[0014] Furthermore, the vehicle control system is also used to detect the high-voltage electrical state of the vehicle in real time and send it to the battery exchange controller; wherein, the high-voltage electrical state of the vehicle is used by the battery exchange controller to determine whether the vehicle is in a lower high-voltage electrical state when it is determined that the battery exchange device has completed positioning of the vehicle and the vehicle meets preset battery exchange conditions, and to control the battery exchange device to replace the battery of the quick-change battery pack if yes, and to send a lower high-voltage electrical request to the vehicle control system if no;

[0015] The vehicle control system is also used to control the lower high voltage power of the vehicle when receiving the lower high voltage power request, and send a lower high voltage power success signal to the battery replacement controller when detecting that the high voltage power state of the vehicle is switched to the lower high voltage power state; wherein the lower high voltage power success signal is used to trigger the battery replacement controller to control the battery replacement equipment to replace the battery of the quick-change battery pack.

[0016] Furthermore, the quick-change battery pack further includes a locking device state detection sensor;

[0017] The locking device state detection sensor is used to detect the state of the locking device, and when it is detected that the locking device is in a state of locking the power battery pack, send a battery pack locking signal to the vehicle control system;

[0018] The vehicle control system is further configured to send the battery pack locking signal to the battery replacement controller when receiving the battery pack locking signal;

[0019] The vehicle control system is further configured to send the battery replacement reminder signal to the battery replacement controller when receiving the battery replacement reminder signal;

[0020] The vehicle control system is also used to detect the speed of the vehicle in real time and send it to the battery replacement controller;

[0021] Among them, the battery pack locking signal, the battery replacement reminder signal and the vehicle speed are used by the battery replacement controller to determine whether the vehicle meets the preset battery replacement conditions, and the preset battery replacement conditions are that the battery replacement reminder signal exists and the vehicle speed is 0, or neither the battery replacement reminder signal nor the battery pack locking signal exists and the vehicle speed is 0.

[0022] Another embodiment of the present invention provides a battery swap station, including a battery swap device and a battery swap controller; wherein:

[0023] The battery exchange controller is used to determine whether the electronic parking controller of the vehicle is in an unlocked state according to the acquired working state of the electronic parking controller of the vehicle when the positioning of the vehicle begins, and control the battery exchange device to locate the vehicle if it is, and send an EPB unlock request to the vehicle control system of the vehicle if it is not; wherein the working state of the electronic parking controller is detected and sent in real time by the vehicle control system of the vehicle, and the EPB unlock request is used to trigger the vehicle control system of the vehicle to control the electronic parking controller of the vehicle to perform a parking release operation, and return an EPB successful unlock signal to the battery exchange controller when it is detected that the current state of the electronic parking controller is switched to an unlocked state;

[0024] The battery swap controller is further configured to control the battery swap equipment of the battery swap station to locate the vehicle upon receiving the successful unlocking signal of the EPB;

[0025] The battery swap controller is also used to control the battery swap device to replace the battery of the quick-change battery pack of the vehicle after determining that the battery swap device has completed positioning the vehicle.

[0026] As an improvement of the above solution, the battery replacement controller is also used for:

[0027] After determining that the battery swap device has completed the positioning of the vehicle, before controlling the battery swap device to replace the battery of the quick-change battery pack of the vehicle, control the battery swap device to turn on the battery swap reminder switch on the quick-change battery pack of the vehicle; wherein the battery swap reminder switch is used to send a battery swap reminder signal to the vehicle control system of the vehicle when it is turned on by the battery swap device, so as to trigger the vehicle control system of the vehicle to control the vehicle to power off at high voltage.

[0028] Furthermore, the battery replacement controller specifically controls the battery replacement device to replace the battery of the quick-change battery pack in the following manner:

[0029] Determining whether the vehicle meets a preset battery replacement condition;

[0030] When it is determined that the vehicle meets the preset battery replacement conditions, it is determined whether the vehicle is in a lower high-voltage power state based on the obtained high-voltage power state of the vehicle, and if so, the battery replacement equipment is controlled to replace the battery of the quick-change battery pack, and if not, a lower high-voltage power request is sent to the vehicle control system of the vehicle; wherein, the high-voltage power state of the vehicle is detected and sent in real time by the vehicle control system of the vehicle, and the lower high-voltage power request is used to trigger the vehicle control system of the vehicle to control the lower high-voltage power of the vehicle, and when it is detected that the high-voltage power state of the vehicle is switched to the lower high-voltage power state, a lower high-voltage power success signal is returned to the battery replacement controller;

[0031] When the lower high voltage power success signal is received, the battery replacement equipment is controlled to replace the battery of the quick-change battery pack.

[0032] Furthermore, the preset battery replacement condition is that the battery replacement reminder signal exists and the vehicle speed is 0, or both the battery replacement reminder signal and the battery pack locking signal do not exist and the vehicle speed is 0.

[0033] Another embodiment of the present invention provides a vehicle quick-change battery system, comprising a battery swap station and a vehicle; wherein the vehicle comprises a vehicle body, a quick-change battery pack, a vehicle control system and an electronic parking controller, and the battery swap station comprises a battery swap device and a battery swap controller;

[0034] The vehicle control system is used to detect the working status of the electronic parking controller in real time and send it to the battery swap controller of the battery swap station;

[0035] The battery exchange controller is used to determine whether the electronic parking controller of the vehicle is in an unlocked state according to the acquired working state of the electronic parking controller of the vehicle when the positioning of the vehicle begins, and control the battery exchange device to locate the vehicle if it is, and send an EPB unlock request to the vehicle control system of the vehicle if it is not;

[0036] The vehicle control system is further used to control the electronic parking controller to perform a parking release operation when receiving the EPB unlocking request, and to send an EPB successful unlocking signal to the battery replacement controller when detecting that the current state of the electronic parking controller is switched to an unlocked state;

[0037] The battery swap controller is further configured to control the battery swap equipment of the battery swap station to locate the vehicle upon receiving the successful unlocking signal of the EPB;

[0038] The battery swap controller is also used to control the battery swap device to replace the battery of the quick-change battery pack of the vehicle after determining that the battery swap device has completed positioning the vehicle.

[0039] Compared with the prior art, the vehicle, battery swap station and vehicle quick-change battery system provided by the embodiments of the present invention can release the parked vehicle before the battery swap equipment at the battery swap station positions the vehicle, so as to ensure that the vehicle's calipers are in an unlocked state, thereby making the vehicle flexible in the X-axis direction. Therefore, flexible contact between the vehicle and the battery swap equipment can be achieved during the positioning process, which is conducive to overcoming positioning errors, thereby effectively solving the problem of the vehicle being easily damaged by the battery swap equipment due to the loss of flexibility in the X-axis direction during the battery swap positioning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a structural schematic diagram of a vehicle provided by an embodiment of the present invention;

[0041] Figure 2 It is a structural schematic diagram of a vehicle quick-change battery system provided by one embodiment of the present invention;

[0042] Figure 3 It is a structural schematic diagram of a battery swap station provided by an embodiment of the present invention;

[0043] Figure 4 is a structural schematic diagram of a vehicle quick-change battery system provided by another embodiment of the present invention;

[0044] Figure 5 It is a state schematic diagram of a vehicle quick-change battery system provided by an embodiment of the present invention when executing a method for intelligently controlling unlocking of an electronic parking controller;

[0045] Figure 6 It is a flow chart of a method for intelligently controlling unlocking of an electronic parking controller in a vehicle quick-change battery system provided by one embodiment of the present invention;

[0046] Figure 7 It is a state schematic diagram of a vehicle quick-change battery system provided by an embodiment of the present invention when executing a method for intelligently controlling high voltage electricity of a vehicle;

[0047] Figure 8 It is a flow chart of a method for intelligently controlling high voltage electricity of a vehicle in a vehicle quick-change battery system provided by one embodiment of the present invention. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] See also Figure 1 , is a schematic structural diagram of a vehicle provided by an embodiment of the present invention.

[0050] The embodiment of the present invention provides a vehicle 10, including a vehicle body 11, a quick-change battery pack 14, a vehicle control system 13 and an electronic parking controller 12; wherein:

[0051] The vehicle control system 13 is used to detect the working state of the electronic parking controller 12 in real time and send it to the battery swap controller of the battery swap station; wherein, the working state of the electronic parking controller 12 is used by the battery swap controller of the battery swap station to determine whether the electronic parking controller 12 is in an unlocked state when the positioning of the vehicle 10 begins, and control the battery swap equipment of the battery swap station to locate the vehicle 10 if yes, and send an EPB unlock request to the vehicle control system 13 if no;

[0052] The vehicle control system 13 is also used to control the electronic parking controller 12 to perform a parking release operation when receiving the EPB unlocking request, and to send an EPB success unlocking signal to the battery swapping controller when detecting that the current state of the electronic parking controller 12 is switched to an unlocked state; wherein the EPB success unlocking signal is used to trigger the battery swapping controller to control the battery swapping equipment of the battery swapping station to locate the vehicle 10.

[0053] It can be understood that the battery swap controller will only perform the battery swap operation after determining that the battery swap equipment of the battery swap station has completed the positioning of the vehicle 10 .

[0054] In this embodiment, the vehicle control system 13 detects the working status of the electronic parking controller 12 in real time and sends it to the battery swap controller of the battery swap station, so that when the battery swap controller of the battery swap station starts to locate the vehicle 10, it determines whether the electronic parking controller 12 is in an unlocked state, and controls the battery swap equipment of the battery swap station to locate the vehicle 10 if it is, and sends an EPB unlock request to the vehicle control system 13 if it is not; when receiving the EPB unlock request, the vehicle control system 13 controls the electronic parking controller 12 to perform a parking release operation, and when detecting that the current state of the electronic parking controller 12 is switched to an unlocked state, sends an EPB success unlock signal to the battery swap controller, so that the battery swap controller controls the battery swap equipment of the battery swap station to locate the vehicle 10. Therefore, by adopting this embodiment, the vehicle 10 in the parked state can be released from the parked state before the battery swapping equipment at the battery swapping station positions the vehicle 10, so as to ensure that the caliper of the vehicle 10 is in an unlocked state, thereby making the vehicle 10 flexible in the X-axis direction. Therefore, flexible contact between the vehicle 10 and the battery swapping equipment can be achieved during the positioning process, which is conducive to overcoming positioning errors, thereby effectively solving the problem of the vehicle being easily damaged by the battery swapping equipment due to the loss of flexibility in the X-axis direction during the positioning process of battery swapping.

[0055] As one of the optional embodiments, the vehicle 10 further includes a battery replacement switch;

[0056] The battery-swapping switch is used to send a battery-swapping switch-on signal to the vehicle control system 13 when it is turned on;

[0057] The vehicle control system 13 is also used to send a keep unlocking instruction to the electronic parking controller 12 when receiving the battery replacement switch on signal, so that the electronic parking controller 12 always remains in the unlocked state.

[0058] It should be noted that when the electronic parking controller 12 is always in the unlocked state, even if the vehicle 10 is turned off and shifted to the P gear, the electronic parking controller 12 still remains in the unlocked state.

[0059] In this embodiment, a battery replacement switch is provided on the vehicle 10. When the user needs to replace the battery, the battery replacement switch will send a battery replacement switch opening signal to the vehicle control system 13, so that the vehicle control system 13 sends a keep unlocking instruction to the electronic parking controller 12, so that the electronic parking controller 12 always remains in an unlocked state and will not automatically clamp the caliper due to the vehicle 10 being turned off, thereby ensuring that the caliper of the vehicle 10 remains unlocked during the positioning process.

[0060] As one of the optional embodiments, the quick-change battery pack 14 includes a power battery pack, a quick-change connector, a battery replacement reminder switch, a quick-change bracket and a locking device; wherein,

[0061] The quick-change bracket is mounted on the chassis of the vehicle body 11, the power battery pack is fixed to the quick-change bracket through the locking device, and the electrical interface of the power battery pack is connected to the vehicle body 11 through the quick-change connector;

[0062] The battery replacement reminder switch is used to send a battery replacement reminder signal to the vehicle control system 13 when it is turned on by the battery replacement device; wherein the operation of the battery replacement device turning on the battery replacement reminder switch is triggered by the battery replacement controller after determining that the battery replacement device has completed the positioning of the vehicle 10 and before controlling the battery replacement device to replace the battery of the quick-change battery pack 14;

[0063] The vehicle control system 13 is also used to control the vehicle 10 to power off at high voltage when receiving the battery replacement reminder signal.

[0064] Among them, the power battery pack is the only power source of the pure electric vehicle, and is composed of a number of battery cells. It converts chemical energy into electrical energy to provide driving force for the vehicle 10.

[0065] Exemplarily, the locking device may be composed of a plurality of battery box locks.

[0066] It should be noted that from the perspective of the circuit, the battery pack quick change means that all connectors on the battery pack that are connected to the vehicle will be cut off, including the high-voltage connection plug and the low-voltage connection plug. After the new battery pack is installed, the high-voltage and low-voltage plugs on the battery pack will be reconnected with the plugs on the vehicle side. When the vehicle is in the high-voltage state, the high-voltage electricity of the battery pack forms a power supply circuit with the high-voltage equipment in the vehicle. During the quick change of the battery pack, the high-voltage connector will be separated with power on. This operation will cause high-voltage safety hazards. Once the high-voltage electricity contacts the surface of the vehicle to form a circuit, there will be a risk of electric shock when people touch it. In addition, it will also cause the quick-change connector terminals to be separated with power on. Because there is current, small friction will generate arcs, causing erosion of the terminals. Over time, the terminals will be burned and blackened, and the contact resistance will increase. When a large current passes through the vehicle while driving, the local terminal will heat up due to the increase in contact resistance, causing safety hazards to the vehicle. Generally speaking, the vehicle's high-voltage power supply is controlled by the vehicle controller. According to the vehicle status, it sends instructions to the battery management controller to meet the needs of high-voltage power supply and low-voltage power supply. Normally, after the vehicle is turned off, the vehicle controller will request the battery management controller to complete the low-voltage power supply. However, the driver often forgets to turn off the engine and leaves the car to replace the battery, which poses a safety risk.

[0067] In this embodiment, a battery replacement reminder switch is provided on the quick-change battery pack 14, so that the battery replacement device can be turned on before controlling the battery replacement device to replace the battery of the quick-change battery pack 14 after determining that the battery replacement device has completed the positioning of the vehicle 10, so that the battery replacement reminder switch sends a battery replacement reminder signal to the vehicle control system 13. In this way, the vehicle control system 13 controls the vehicle 10 to power off at high voltage before the battery replacement device replaces the battery of the quick-change battery pack 14, which can prevent high-voltage safety hazards from being generated during the battery replacement process and ensure the safety of subsequent battery replacement.

[0068] Furthermore, the vehicle control system 13 is also used to detect the high-voltage power state of the vehicle 10 in real time and send it to the battery exchange controller; wherein, the high-voltage power state of the vehicle 10 is used by the battery exchange controller to determine whether the vehicle 10 is in a low-voltage power state when it is determined that the battery exchange device has completed the positioning of the vehicle 10 and the vehicle 10 meets the preset battery exchange conditions, and control the battery exchange device to replace the battery of the quick-change battery pack 14 if yes, and send a low-voltage power request to the vehicle control system 13 if no;

[0069] The vehicle control system 13 is also used to control the vehicle 10 to lower the high voltage power when receiving the lower high voltage power request, and to send a lower high voltage power success signal to the battery replacement controller when detecting that the high voltage power state of the vehicle 10 is switched to the lower high voltage power state; wherein the lower high voltage power success signal is used to trigger the battery replacement controller to control the battery replacement equipment to replace the battery of the quick-change battery pack 14.

[0070] It should be noted that in the prior art, because whether the vehicle has actually completed the high-voltage state is not sent to the smart battery swap station console, it is very likely that the smart battery swap station console will mistakenly believe that the vehicle has completed the high-voltage state. For example, in order to improve work efficiency, the battery swap station will control the battery swap equipment to open the battery box lock and start removing the battery pack 3s after the battery swap reminder signal is triggered. However, in some extreme cases or when the vehicle fails, it is impossible to complete the high-voltage state in 3s. For example, due to a failure or error in the battery swap equipment, the battery swap reminder signal will be delayed and the battery box lock will be opened first, causing the vehicle to swap batteries before completing the high-voltage state.

[0071] In this embodiment, the vehicle control system 13 detects the high-voltage power state of the vehicle 10 in real time and sends it to the battery exchange controller, so that when the battery exchange controller determines that the battery exchange device has completed the positioning of the vehicle 10 and the vehicle 10 meets the preset battery exchange conditions, it first determines whether the vehicle 10 is in a lower high-voltage power state according to the high-voltage power state of the vehicle 10, and controls the battery exchange device to replace the battery of the quick-change battery pack 14 if it is, and sends a lower high-voltage power request to the vehicle control system 13 if it is not, and the vehicle control system 13 receives the lower high-voltage power request. When the high voltage power is turned off, the vehicle 10 is controlled to reduce the high voltage power, and when it is detected that the high voltage power state of the vehicle 10 is switched to the low high voltage power state, a high voltage power reduction success signal is sent to the battery replacement controller, so that the battery replacement controller controls the battery replacement equipment to replace the battery of the quick-change battery pack 14. Therefore, the vehicle 10 can automatically complete the high voltage power reduction operation when the high voltage power is not reduced, and the battery replacement controller can perform a closed-loop confirmation on the actual high voltage power state completed by the vehicle 10, ensuring that the vehicle 10 is replaced only after the high voltage power is reduced, thereby improving the electrical safety of the battery replacement operation and avoiding harm to people.

[0072] Furthermore, the quick-change battery pack 14 also includes a locking device state detection sensor;

[0073] The locking device state detection sensor is used to detect the state of the locking device, and when it is detected that the locking device is in a state of locking the power battery pack, sends a battery pack locking signal to the vehicle control system 13;

[0074] The vehicle control system 13 is further configured to send the battery pack locking signal to the battery replacement controller when receiving the battery pack locking signal;

[0075] The vehicle control system 13 is further configured to send the battery replacement reminder signal to the battery replacement controller when receiving the battery replacement reminder signal;

[0076] The vehicle control system 13 is also used to detect the speed of the vehicle 10 in real time and send it to the battery replacement controller;

[0077] Among them, the battery pack locking signal, the battery replacement reminder signal and the speed of the vehicle 10 are used by the battery replacement controller to determine whether the vehicle 10 meets the preset battery replacement conditions, and the preset battery replacement conditions are that the battery replacement reminder signal exists and the speed of the vehicle 10 is 0, or neither the battery replacement reminder signal nor the battery pack locking signal exists and the speed of the vehicle 10 is 0.

[0078] It can be understood that the vehicle 10 is in a state where battery replacement is allowed only when the battery replacement reminder signal exists and the speed of the vehicle 10 is 0, or when both the battery replacement reminder signal and the battery pack locking signal do not exist and the speed of the vehicle 10 is 0.

[0079] In this embodiment, a locking device status detection sensor is also provided on the quick-change battery pack 14. The locking device status detection sensor detects the status of the locking device, and when it is detected that the locking device is in a state of locking the power battery pack, the battery pack locking signal is sent to the vehicle control system 13, so that the vehicle control system 13 sends the battery pack locking signal to the battery replacement controller, and the vehicle control system 13 also sends the received battery replacement reminder signal to the battery replacement controller, and the vehicle control system 13 also detects the speed of the vehicle 10 in real time and sends it to the battery replacement controller, so that the battery replacement controller determines whether the vehicle 10 meets the preset battery replacement conditions according to whether the battery pack locking signal exists, whether the battery replacement reminder signal exists and whether the speed of the vehicle 10 is 0. Therefore, it can be ensured that the vehicle 10 is replaced only when the preset battery replacement conditions are met, thereby ensuring the reliability and safety of battery replacement.

[0080] As one of the optional implementations, based on the above embodiment, the vehicle control system 13 includes a battery management controller (BMS) 112, a vehicle control unit (VCU) 111 and a quick-change battery smart data management controller (SMC) 113. Figure 2As shown, the battery management controller 112 is integrated in the quick-change battery pack 14, collects battery cell parameters, and manages and controls the battery cell charging and discharging energy; the quick-change battery intelligent data management controller 113 is installed in the vehicle 10, and exchanges data with the battery management controller 112; the vehicle controller 111 is installed in the vehicle 10, and is responsible for the whole vehicle control, including high-voltage power up and down control, torque control, brake recovery, thermal management, energy management, collection of battery pack locking signals and quick-change reminder signals, etc.; the electronic parking controller 12 is responsible for controlling the unlocking and locking of the rear wheel brake calipers.

[0081] Further, see Figure 2 , the data interaction between the vehicle control system 13 and the battery exchange controller is realized through the background server 40. Specifically, the battery management controller 112 collects the voltage, temperature, current and other signal states of each battery cell through the sampling harness of each battery module in the quick-change battery pack 14, and manages the working state of the quick-change battery pack 14, such as discharge, charging, fault handling, etc., and transmits the collected battery and vehicle information to the quick-change battery intelligent data management controller 113; the vehicle controller 111 will collect the battery pack locking signal and quick-change reminder signal on the quick-change battery pack 14, make a comprehensive judgment on the signal triggering state, confirm whether the vehicle 10 needs to be powered off, and transmit the battery pack locking signal and quick-change reminder signal to the quick-change battery pack 14. The wake-up signal is sent to the quick-change battery intelligent data management controller 113; the quick-change battery intelligent data management controller 113 uploads the data that needs to be transmitted to the quick-change controller to the background server 40 through the signal base station, and then transmits it to the quick-change controller through the background server 40. At the same time, the data transmission is also bidirectional. The quick-change controller can also transmit control instructions to the background server 40 through the signal base station, so that the background server 40 transmits control instructions to the quick-change battery intelligent data management controller 113 through the signal base station, and then the quick-change battery intelligent data management controller 113 transmits the control instructions to the vehicle controller 111.

[0082] See also Figure 3 , is a structural schematic diagram of a battery swap station provided by an embodiment of the present invention.

[0083] The battery swap station 20 provided in the embodiment of the present invention includes a battery swap device 22 and a battery swap controller 21; wherein:

[0084] The battery exchange controller 21 is used to determine whether the electronic parking controller of the vehicle is in an unlocked state according to the acquired working state of the electronic parking controller of the vehicle when the positioning of the vehicle begins, and control the battery exchange device 22 to locate the vehicle if it is, and send an EPB unlock request to the vehicle control system of the vehicle if it is not; wherein the working state of the electronic parking controller is detected and sent by the vehicle control system of the vehicle in real time, and the EPB unlock request is used to trigger the vehicle control system of the vehicle to control the electronic parking controller of the vehicle to perform a parking release operation, and return an EPB successful unlock signal to the battery exchange controller 21 when it is detected that the current state of the electronic parking controller is switched to an unlocked state;

[0085] The battery swap controller 21 is further used to control the battery swap equipment 22 of the battery swap station 20 to locate the vehicle when receiving the EPB successful unlocking signal;

[0086] The battery replacement controller 21 is also used to control the battery replacement device 22 to replace the battery of the quick-change battery pack of the vehicle after determining that the battery replacement device 22 has completed the positioning of the vehicle.

[0087] Exemplarily, the battery swap controller 21 may determine the start of positioning the vehicle upon receiving a battery swap start signal. In a specific embodiment, the battery swap start signal may be sent by a user through a mobile phone APP connected to the battery swap station 20, or by a user through a corresponding start button on the battery swap station 20, or by other optional means, which are not limited here.

[0088] In this embodiment, the vehicle control system of the vehicle detects the working status of the electronic parking controller in real time and sends it to the battery swap controller 21. When the positioning of the vehicle starts, the battery swap controller 21 determines whether the electronic parking controller of the vehicle is in an unlocked state according to the acquired working status of the electronic parking controller of the vehicle, and controls the battery swap device 22 to locate the vehicle if it is, and sends an EPB unlock request to the vehicle control system of the vehicle if it is not, so that the vehicle control system of the vehicle controls the electronic parking controller of the vehicle to perform a parking release operation, and returns an EPB success unlock signal to the battery swap controller 21 when it detects that the current state of the electronic parking controller is switched to an unlocked state; when the battery swap controller 21 receives the EPB success unlock signal, it controls the battery swap device 22 of the battery swap station 20 to locate the vehicle, and after determining that the battery swap device 22 has completed the positioning of the vehicle, controls the battery swap device 22 to replace the battery of the quick-change battery pack of the vehicle. Therefore, by adopting this embodiment, a vehicle in a parked state can be unparked before the battery swapping equipment 22 of the battery swapping station 20 positions the vehicle, so as to ensure that the caliper of the vehicle is in an unlocked state, thereby making the vehicle flexible in the X-axis direction. Therefore, flexible contact between the vehicle and the battery swapping equipment 22 can be achieved during the positioning process, which is conducive to overcoming positioning errors, thereby effectively solving the problem of the vehicle being easily damaged by the battery swapping equipment due to the loss of flexibility in the X-axis direction during the positioning process of battery swapping.

[0089] As one of the optional embodiments, the battery replacement controller 21 is further used for:

[0090] After determining that the battery swap device 22 has completed the positioning of the vehicle, before controlling the battery swap device 22 to replace the battery of the quick-change battery pack of the vehicle, control the battery swap device 22 to turn on the battery swap reminder switch on the quick-change battery pack of the vehicle; wherein the battery swap reminder switch is used to send a battery swap reminder signal to the vehicle control system of the vehicle when it is turned on by the battery swap device 22, so as to trigger the vehicle control system of the vehicle to control the vehicle to power off at high voltage.

[0091] In this embodiment, after determining that the battery swap device 22 has completed the positioning of the vehicle, the battery swap controller 21 controls the battery swap device 22 to turn on the battery swap reminder switch on the quick-swap battery pack of the vehicle before controlling the battery swap device 22 to replace the battery of the quick-swap battery pack of the vehicle, so that the battery swap reminder switch sends a battery swap reminder signal to the vehicle control system of the vehicle to trigger the vehicle control system of the vehicle to control the vehicle to power off at high voltage. In this way, the vehicle is powered off at high voltage before the quick-swap battery pack is replaced, thereby preventing high-voltage safety hazards during the battery swap process and ensuring the safety of subsequent battery swaps.

[0092] Furthermore, the battery replacement controller 21 specifically controls the battery replacement device 22 to replace the battery of the quick-change battery pack in the following manner:

[0093] Determining whether the vehicle meets a preset battery replacement condition;

[0094] When it is determined that the vehicle meets the preset battery replacement conditions, it is determined whether the vehicle is in a lower high-voltage power state according to the obtained high-voltage power state of the vehicle, and if so, the battery replacement device 22 is controlled to replace the battery of the quick-change battery pack, and if not, a lower high-voltage power request is sent to the vehicle control system of the vehicle; wherein, the high-voltage power state of the vehicle is detected and sent in real time by the vehicle control system of the vehicle, and the lower high-voltage power request is used to trigger the vehicle control system of the vehicle to control the lower high-voltage power of the vehicle, and when it is detected that the high-voltage power state of the vehicle is switched to the lower high-voltage power state, a lower high-voltage power success signal is returned to the battery replacement controller 21;

[0095] When the lower high voltage power success signal is received, the battery replacement device 22 is controlled to replace the battery of the quick-change battery pack.

[0096] In this embodiment, the vehicle control system detects the high-voltage power state of the vehicle in real time and sends it to the battery exchange controller 21; the battery exchange controller 21 determines whether the vehicle meets the preset battery exchange conditions. When it is determined that the vehicle meets the preset battery exchange conditions, it determines whether the vehicle is in a lower high-voltage power state according to the acquired high-voltage power state of the vehicle, and controls the battery exchange device 22 to replace the battery of the quick-change battery pack if it is, and sends a lower high-voltage power request to the vehicle control system of the vehicle if it is not, so that the vehicle control system of the vehicle controls the vehicle to lower the high-voltage power, and returns a lower high-voltage power success signal when it detects that the high-voltage power state of the vehicle is switched to the lower high-voltage power state; when the battery exchange controller 21 receives the lower high-voltage power success signal, it controls the battery exchange device 22 to replace the battery of the quick-change battery pack, so that it can control the vehicle to automatically complete the lower high-voltage power operation when the vehicle has not lowered the high-voltage power, and can make a closed-loop confirmation of the actual high-voltage power state completed by the vehicle, to ensure that the vehicle is replaced only after the high-voltage power is lowered, thereby improving the electrical safety of the battery exchange operation and avoiding harm to people.

[0097] Furthermore, the preset battery replacement condition is that the battery replacement reminder signal exists and the vehicle speed is 0, or both the battery replacement reminder signal and the battery pack locking signal do not exist and the vehicle speed is 0.

[0098] In this embodiment, the battery replacement controller 21 determines whether the vehicle meets the preset battery replacement conditions based on whether the battery pack locking signal exists, whether the battery replacement reminder signal exists, and whether the vehicle speed is 0. Therefore, it can ensure that the vehicle will only replace the battery when the preset battery replacement conditions are met, thereby ensuring the reliability and safety of the battery replacement.

[0099] As one of the optional embodiments, the battery swap station 20 further includes charging equipment;

[0100] The battery replacement controller 21 is also used to control the battery replacement device 22 to connect the power battery pack replaced from the quick-change battery pack with the charging device, so as to charge the power battery pack replaced from the quick-change battery pack through the charging device.

[0101] In this embodiment, the battery swap station 20 also includes charging equipment, which can charge the replaced battery packs, thereby improving the intelligence level of the battery swap station 20.

[0102] As one of the specific implementations, Figure 2As shown, the user can check the location and operation status of the battery swap station 20, the battery swap account balance and battery swap fee, etc., and start the battery swap of the vehicle through the mobile phone APP of the mobile terminal 50. When the vehicle performs the battery swap operation at the battery swap station 20, the battery swap controller 21 can determine the vehicle information, intelligently complete the vehicle information confirmation and fee calculation, and can monitor the removal and installation process of the quick-swap battery pack to ensure that the battery is installed correctly.

[0103] See also Figure 4 , is a schematic structural diagram of a vehicle quick-change battery system provided by one embodiment of the present invention.

[0104] The embodiment of the present invention provides a vehicle quick-change battery system 30, comprising a battery swap station 20 and a vehicle 10; wherein the vehicle 10 comprises a vehicle body 11, a quick-change battery pack 14, a vehicle control system 13 and an electronic parking controller 12, and the battery swap station 20 comprises a battery swap device 22 and a battery swap controller 21;

[0105] The vehicle control system 13 is used to detect the working status of the electronic parking controller 12 in real time and send it to the battery swap controller 21 of the battery swap station 20;

[0106] The battery exchange controller 21 is used to determine whether the electronic parking controller 12 of the vehicle 10 is in an unlocked state according to the acquired working state of the electronic parking controller 12 of the vehicle 10 when the positioning of the vehicle 10 begins, and control the battery exchange device 22 to locate the vehicle if yes, and send an EPB unlock request to the vehicle control system 13 of the vehicle 10 if no;

[0107] The vehicle control system 13 is further used to control the electronic parking controller 12 to perform a parking release operation when receiving the EPB unlocking request, and to send an EPB successful unlocking signal to the battery replacement controller 21 when detecting that the current state of the electronic parking controller 12 is switched to an unlocked state;

[0108] The battery swap controller 21 is further used to control the battery swap equipment 22 of the battery swap station 20 to locate the vehicle 10 when receiving the EPB successful unlocking signal;

[0109] The battery replacement controller 21 is also used to control the battery replacement device 22 to replace the battery of the quick-change battery pack 14 of the vehicle 10 after determining that the battery replacement device 22 has completed the positioning of the vehicle 10 .

[0110] As one of the optional embodiments, the vehicle 10 further includes a battery replacement switch;

[0111] The battery-swapping switch is used to send a battery-swapping switch-on signal to the vehicle control system 13 when it is turned on;

[0112] The vehicle control system 13 is also used to send a keep unlocking instruction to the electronic parking controller 12 when receiving the battery replacement switch on signal, so that the electronic parking controller 12 always remains in the unlocked state.

[0113] As one of the optional embodiments, the quick-change battery pack 14 includes a power battery pack, a quick-change connector, a battery replacement reminder switch, a quick-change bracket and a locking device; wherein,

[0114] The quick-change bracket is mounted on the chassis of the vehicle body 11, the power battery pack is fixed to the quick-change bracket through the locking device, and the electrical interface of the power battery pack is connected to the vehicle body 11 through the quick-change connector;

[0115] The battery replacement controller 21 is further used to control the battery replacement device 22 to turn on the battery replacement reminder switch on the quick-change battery pack 14 of the vehicle 10 after determining that the battery replacement device 22 has completed the positioning of the vehicle 10 and before controlling the battery replacement device 22 to replace the battery of the quick-change battery pack 14 of the vehicle 10;

[0116] The battery replacement reminder switch is used to send a battery replacement reminder signal to the vehicle control system 13 when it is turned on by the battery replacement device 22;

[0117] The vehicle control system 13 is also used to control the vehicle 10 to power off at high voltage when receiving the battery replacement reminder signal.

[0118] Furthermore, the vehicle control system 13 is also used to detect the high voltage power state of the vehicle 10 in real time and send it to the power exchange controller 21;

[0119] The battery replacement controller 21 specifically controls the battery replacement device 22 to replace the battery of the quick-change battery pack 14 in the following manner:

[0120] Determining whether the vehicle 10 meets a preset battery replacement condition;

[0121] When it is determined that the vehicle 10 meets the preset battery replacement condition, it is determined whether the vehicle 10 is in a lower high-voltage power state according to the obtained high-voltage power state of the vehicle 10, and if so, the battery replacement device 22 is controlled to replace the battery of the quick-change battery pack 14, and if not, a lower high-voltage power request is sent to the vehicle control system 13 of the vehicle 10; wherein, the lower high-voltage power request is used to trigger the vehicle control system 13 of the vehicle 10 to control the lower high-voltage power of the vehicle 10, and when it is detected that the high-voltage power state of the vehicle 10 is switched to the lower high-voltage power state, a lower high-voltage power success signal is returned to the battery replacement controller 21;

[0122] When the lower high voltage power success signal is received, the battery replacement device 22 is controlled to replace the battery of the quick-change battery pack 14 .

[0123] Furthermore, the quick-change battery pack 14 also includes a locking device state detection sensor;

[0124] The locking device state detection sensor is used to detect the state of the locking device, and when it is detected that the locking device is in a state of locking the power battery pack, sends a battery pack locking signal to the vehicle control system 13;

[0125] The vehicle control system 13 is further configured to send the battery pack locking signal to the battery replacement controller 21 when receiving the battery pack locking signal;

[0126] The vehicle control system 13 is further configured to send the battery replacement reminder signal to the battery replacement controller 21 when receiving the battery replacement reminder signal;

[0127] The vehicle control system 13 is also used to detect the speed of the vehicle 10 in real time and send it to the battery replacement controller 21;

[0128] The preset battery replacement condition is that the battery replacement reminder signal exists and the speed of the vehicle 10 is 0, or both the battery replacement reminder signal and the battery pack locking signal do not exist and the speed of the vehicle 10 is 0.

[0129] As one of the optional embodiments, the battery swap station 20 further includes charging equipment;

[0130] The battery replacement controller 21 is also used to control the battery replacement device 22 to connect the power battery pack replaced from the quick-change battery pack 14 to the charging device, so as to charge the power battery pack replaced from the quick-change battery pack 14 through the charging device.

[0131] As one of the optional embodiments, based on the above embodiment, Figure 2As shown, the vehicle quick-change battery system 30 also includes a mobile terminal 50 and a background server 40. Specifically, the specific functions of the mobile terminal 50 and the background server 40 and the specific functions of each component in the vehicle control system 13 can be referred to the relevant description of some embodiments of the battery swap station, which will not be repeated here.

[0132] Further, based on the above embodiment, Figure 2 As shown, the vehicle control system 13 includes a battery management controller 112, a vehicle controller 111 and a quick-change battery intelligent data management controller 113. Specifically, the specific functions of each component in the vehicle control system 13 can be referred to the relevant description of the vehicle part embodiment, which will not be repeated here.

[0133] On this basis, combined with Figure 5 and Figure 6 , a method for intelligently controlling unlocking of the electronic parking controller 12 in the vehicle quick-change battery system 30 provided in an embodiment of the present invention is described, and the method specifically includes:

[0134] Step 1: The vehicle 10 enters the battery swap station 20 and starts preparing for battery swap;

[0135] Step 2: Determine whether the battery replacement switch of the vehicle 10 is turned on;

[0136] Step 3: If the battery-swapping switch of the vehicle 10 is turned on, the vehicle controller 111 will send a request for the brake caliper to be unlocked to the electronic parking controller 12. After receiving the instruction, the electronic parking controller 12 will always ensure that the caliper is in the unlocked state; if the battery-swapping switch of the vehicle 10 is not turned on, the electronic parking controller 12 will control the brake caliper to work according to the original strategy of the vehicle 10;

[0137] Step 4: The vehicle 10 is turned off and the driver leaves the vehicle;

[0138] Step 5: The battery replacement controller 21 determines whether the electronic parking controller 12 is in an unlocked state;

[0139] Step 6: If the battery swap controller 21 reads that the electronic parking controller 12 is in the unlocked state, proceed to the next step; if the battery swap controller 21 reads that the electronic parking controller 12 is in the locked state, it automatically sends a command to the quick-change battery intelligent data management controller 113 through the background server 40. After the vehicle controller 111 receives the request for unlocking the electronic parking controller 12 from the quick-change battery intelligent data management controller 113, it will control the electronic parking controller 12 to complete the unlocking. Then repeat the above steps 3 to 5 until the battery swap controller 21 receives the signal that the electronic parking controller 12 is successfully unlocked.

[0140] Step 7: The battery replacement equipment 22 starts to position and dock with the vehicle 10 and proceeds to the subsequent steps of battery replacement.

[0141] On this basis, combined with Figure 7 and Figure 8 , a method for intelligently controlling the high voltage of a vehicle in the vehicle quick-change battery system 30 provided in an embodiment of the present invention is described, and the method specifically includes:

[0142] Step 1: Vehicle 10 has completed positioning and is ready to start battery replacement.

[0143] Step 2: Determine whether the battery replacement reminder signal is true?

[0144] Step 3: If the battery replacement reminder signal is true, determine whether the vehicle speed is 0?

[0145] Step 4: If the vehicle speed is not 0, the vehicle 10 does not perform any operation.

[0146] Step 5: If the vehicle speed is 0, determine whether the key power position is off?

[0147] Step 6: If the key power is in the off position, the battery replacement controller 21 determines and reads whether the vehicle 10 is in the low high voltage state?

[0148] Step 7: If the battery swap controller 21 reads that the vehicle 10 is in the low-voltage state, then the subsequent battery swap operation is performed; otherwise, the battery swap controller 21 requests the vehicle controller 111 to control the vehicle 10 to perform the low-voltage operation. Then repeat this step until the vehicle 10 is read as being in the low-voltage state, then the subsequent battery swap operation is performed.

[0149] Step 8: If the key power is not in the off position, repeat step 7 until the vehicle 10 is read as being in the lower high voltage state, and then proceed to the subsequent battery replacement operation.

[0150] Step 9: If the battery replacement reminder signal is false, determine whether the battery pack locking signal is true?

[0151] Step 10: If the battery pack lock signal is true, the vehicle 10 does not operate.

[0152] Step 11: If the battery pack lock signal is false, determine whether the vehicle speed is 0?

[0153] Step 12: If the vehicle speed is not 0, the vehicle 10 does not perform any operation.

[0154] Step 13: If the vehicle speed is 0, repeat step 7 until the vehicle 10 is read as being in a lower high-voltage state, and then proceed to the subsequent battery replacement operation.

[0155] Step 14: The battery replacement controller 21 completes the confirmation of the high voltage power of the vehicle 10 and starts the subsequent steps of battery replacement.

[0156] It should be noted that the analysis of the relevant technical effects of the above-mentioned vehicle quick-change battery system embodiment and its preferred embodiment can refer to the relevant descriptions of the above-mentioned vehicle part embodiment and the above-mentioned battery swap station part embodiment, which will not be repeated here.

[0157] It should be noted that the device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the accompanying drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines. A person of ordinary skill in the art may understand and implement it without paying any creative effort.

[0158] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A vehicle, characterized in that: It includes a vehicle body, a quick-change battery pack, a vehicle control system and an electronic parking controller; wherein the vehicle control system is used to detect the working status of the electronic parking controller in real time and send it to the battery swap controller of the battery swap station; wherein the working status of the electronic parking controller is used by the battery swap controller of the battery swap station to determine whether the electronic parking controller is in an unlocked state when the positioning of the vehicle starts, and if so, control the battery swap equipment of the battery swap station to locate the vehicle, and if not, send an EPB unlock request to the vehicle control system; the vehicle control system is also used to control the electronic parking controller to perform a parking release operation when receiving the EPB unlock request, and send an EPB success unlock signal to the battery swap controller when detecting that the current state of the electronic parking controller is switched to an unlocked state; wherein the EPB success unlock signal is used to trigger the battery swap controller to control the battery swap equipment of the battery swap station to locate the vehicle, so as to constrain the position of the vehicle in the moving direction.

2. The vehicle according to claim 1, characterized in that The vehicle also includes a battery-swapping switch; the battery-swapping switch is used to send a battery-swapping switch-on signal to the vehicle control system when it is turned on; the vehicle control system is also used to send a keep-unlocking instruction to the electronic parking controller when it receives the battery-swapping switch-on signal, so that the electronic parking controller always remains in an unlocked state.

3. The vehicle according to claim 1, characterized in that The quick-change battery pack includes a power battery pack, a quick-change connector, a battery-change reminder switch, a quick-change bracket and a locking device; wherein, the quick-change bracket is mounted on the chassis of the vehicle body, the power battery pack is fixed to the quick-change bracket through the locking device, and the electrical interface of the power battery pack is connected to the vehicle body through the quick-change connector; the battery-change reminder switch is used to send a battery-change reminder signal to the vehicle control system when it is turned on by the battery-changing device; wherein, the operation of the battery-changing device to turn on the battery-change reminder switch is triggered by the battery-changing controller after determining that the battery-changing device has completed the positioning of the vehicle and before controlling the battery-changing device to replace the battery of the quick-change battery pack; the vehicle control system is also used to control the vehicle to power off at high voltage when receiving the battery-change reminder signal.

4. The vehicle according to claim 3, characterized in that The vehicle control system is also used to detect the high-voltage power state of the vehicle in real time and send it to the battery replacement controller; wherein, the high-voltage power state of the vehicle is used by the battery replacement controller to determine whether the vehicle is in a lower high-voltage power state when it is determined that the battery replacement equipment has completed the positioning of the vehicle and the vehicle meets the preset battery replacement conditions, and if so, control the battery replacement equipment to replace the battery of the quick-change battery pack, and if not, send a lower high-voltage power request to the vehicle control system; the vehicle control system is also used to control the vehicle to lower the high-voltage power upon receiving the lower high-voltage power request, and send a lower high-voltage power success signal to the battery replacement controller when it is detected that the high-voltage power state of the vehicle is switched to the lower high-voltage power state; wherein the lower high-voltage power success signal is used to trigger the battery replacement controller to control the battery replacement equipment to replace the battery of the quick-change battery pack.

5. The vehicle according to claim 4, characterized in that The quick-change battery pack also includes a locking device status detection sensor; the locking device status detection sensor is used to detect the status of the locking device, and when it is detected that the locking device is in a state of locking the power battery pack, sends a battery pack locking signal to the vehicle control system; the vehicle control system is also used to send the battery pack locking signal to the battery replacement controller when receiving the battery pack locking signal; the vehicle control system is also used to send the battery replacement reminder signal to the battery replacement controller when receiving the battery replacement reminder signal; the vehicle control system is also used to detect the vehicle speed of the vehicle in real time and send it to the battery replacement controller; wherein, the battery pack locking signal, the battery replacement reminder signal and the vehicle speed are used by the battery replacement controller to determine whether the vehicle meets the preset battery replacement condition, and the preset battery replacement condition is that the battery replacement reminder signal exists and the vehicle speed is 0, or the battery replacement reminder signal and the battery pack locking signal do not exist and the vehicle speed is 0.

6. A battery swap station, characterized in that: It comprises a battery swap device and a battery swap controller; wherein, the battery swap controller is used to determine whether the electronic parking controller of the vehicle is in an unlocked state according to the working state of the electronic parking controller of the vehicle obtained when positioning the vehicle begins, and control the battery swap device to locate the vehicle if so, and send an EPB unlock request to the vehicle control system of the vehicle if not; wherein, the working state of the electronic parking controller is detected and sent in real time by the vehicle control system of the vehicle, and the EPB unlock request is used to trigger the vehicle control system of the vehicle to control the electronic parking controller of the vehicle to perform a parking release operation, and return an EPB success unlock signal to the battery swap controller when it is detected that the current state of the electronic parking controller is switched to an unlocked state; the battery swap controller is also used to control the battery swap device of the battery swap station to locate the vehicle when receiving the EPB success unlock signal, so as to constrain the position of the vehicle in the moving direction; the battery swap controller is also used to control the battery swap device to replace the battery of the quick-change battery pack of the vehicle after determining that the battery swap device has completed positioning the vehicle.

7. The battery swap station according to claim 6, characterized in that: The battery swap controller is also used to: after determining that the battery swap device has completed the positioning of the vehicle, before controlling the battery swap device to replace the battery of the quick-swap battery pack of the vehicle, control the battery swap device to turn on the battery swap reminder switch on the quick-swap battery pack of the vehicle; wherein the battery swap reminder switch is used to send a battery swap reminder signal to the vehicle control system of the vehicle when it is turned on by the battery swap device, so as to trigger the vehicle control system of the vehicle to control the vehicle to power off at high voltage.

8. The battery swap station according to claim 7, characterized in that: The battery replacement controller specifically controls the battery replacement equipment to replace the battery of the quick-change battery pack in the following manner: determining whether the vehicle meets the preset battery replacement conditions; when it is determined that the vehicle meets the preset battery replacement conditions, determining whether the vehicle is in a lower high-voltage power state based on the acquired high-voltage power state of the vehicle, and controlling the battery replacement equipment to replace the battery of the quick-change battery pack if yes, and sending a lower high-voltage power request to the vehicle control system of the vehicle if no; wherein the high-voltage power state of the vehicle is detected and sent in real time by the vehicle control system of the vehicle, the lower high-voltage power request is used to trigger the vehicle control system of the vehicle to control the lower high-voltage power of the vehicle, and when it is detected that the high-voltage power state of the vehicle is switched to the lower high-voltage power state, returning a lower high-voltage power success signal to the battery replacement controller; upon receiving the lower high-voltage power success signal, controlling the battery replacement equipment to replace the battery of the quick-change battery pack.

9. The battery swap station according to claim 8, characterized in that: The preset battery replacement condition is that the battery replacement reminder signal exists and the vehicle speed is 0, or both the battery replacement reminder signal and the battery pack locking signal do not exist and the vehicle speed is 0.

10. A vehicle quick-change battery system, characterized in that: It comprises a battery swap station and a vehicle; wherein the vehicle comprises a vehicle body, a quick-change battery pack, a vehicle control system and an electronic parking controller, and the battery swap station comprises a battery swap device and a battery swap controller; the vehicle control system is used to detect the working state of the electronic parking controller in real time and send it to the battery swap controller of the battery swap station; the battery swap controller is used to determine whether the electronic parking controller of the vehicle is in an unlocked state according to the acquired working state of the electronic parking controller of the vehicle when positioning of the vehicle begins, and control the battery swap device to locate the vehicle if yes, and send an EPB unlock request to the vehicle control system of the vehicle if no; The vehicle control system is also used to control the electronic parking controller to perform a parking release operation when receiving the EPB unlocking request, and to send an EPB success unlocking signal to the battery swapping controller when detecting that the current state of the electronic parking controller is switched to an unlocked state; the battery swapping controller is also used to control the battery swapping equipment of the battery swapping station to position the vehicle when receiving the EPB success unlocking signal to constrain the position of the vehicle in the moving direction; the battery swapping controller is also used to control the battery swapping equipment to replace the quick-change battery pack of the vehicle after determining that the battery swapping equipment has completed positioning the vehicle.

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