TWI755708B - Control method of battery positioning device for electric vehicle - Google Patents

Abstract

A control method of a battery positioning device of an electric vehicle, the electric vehicle comprises a vehicle body, a battery module, a vehicle controller, a seat cushion, and a seat cushion switch sensor for sensing whether the seat cushion is closed or not, and a switch connected to the battery positioning device. The control method of the battery positioning device of the electric vehicle includes a judging step and an unlocking step. The judging step is that the vehicle controller receives a power-on state signal for confirming the correct user, a seat cushion on-state signal generated by the seat cushion switch sensor, and confirms that the battery positioning device has been positioned by the switch The lock state signal, and a safety signal confirming that the vehicle body is not in the driving state. After receiving the above signal, the vehicle controller controls the battery positioning device to unlock, so that the battery module can be disassembled.

Description

Control method of battery positioning device for electric vehicle

The present invention relates to a control method, in particular to a control method of a battery positioning device of an electric vehicle.

Referring to FIG. 1 , an electric vehicle 1 includes a battery slot 11 for detachably inserting a battery 100 , and a connection terminal 12 disposed in the battery slot 11 and suitable for electrical connection with the battery 100 . After the battery 100 is connected to the connection terminal 12 , the power required for the electric vehicle 1 to travel can be provided.

However, when the electric vehicle 1 travels, bumps are inevitably caused by traveling on a road with large undulations. At this time, if the battery 100 oscillates relative to the connection terminal 12, the power supply may be interrupted to affect normal driving, or even the electric vehicle 1 may be unable to control or operate abnormally due to the power failure. It is a problem that must be overcome in order to maintain driving safety.

Therefore, the purpose of the present invention is to provide a control method of a battery positioning device for an electric vehicle, which can ensure that the power supply is not interrupted when the electric vehicle is running, and can effectively cooperate with other existing components to perform integrated control.

According to the invention of claim 1 of the scope of application, the present invention is a control method of a battery positioning device for an electric vehicle, the electric vehicle includes a vehicle body, a battery module releasably positioned by the battery positioning device, and a battery module disposed in the vehicle. A vehicle controller of the vehicle body, a seat cushion that can be opened on the vehicle body, a seat cushion switch sensor connected to the seat cushion and used to sense whether the seat cushion is closed or not, and a seat cushion connected to the battery positioning device switch. The control method of the battery positioning device of the electric vehicle includes a judging step and an unlocking step.

The judging step is that the vehicle controller receives a power on state signal for confirming the correct user, a seat cushion open state signal generated by the seat cushion switch sensor sensing the opening of the seat cushion, and a confirmation by the switch The battery positioning device has positioned the lock state signal of the battery module and a safety signal confirming that the vehicle body is not in a running state.

In the unlocking step, when the vehicle controller receives the power-on state signal, the seat cushion open state signal, the lock state signal, and the safety signal, it controls the battery positioning device to unlock, so that the battery module can be released from positioning. disassemble

According to the invention of claim 2, the battery positioning device includes a lock that can move between a fixed position for locking the battery module and an unlocked position a piece, and an actuating piece connected to the locking piece and used to control the action of the locking piece. During the unlocking step, the vehicle controller controls the actuating member to actuate.

According to the invention of claim 3, the electric vehicle further comprises a motor and a motor controller connected to the motor, wherein, in the determination step, the safety signal is that the motor controller controls the rotational speed of the motor generated from zero.

According to the invention of claim 4, the electric vehicle further comprises a wheel and a wheel speed sensor connected to the wheel, wherein, in the determination step, the safety signal uses the wheel speed sensor Confirm that the rotation speed of the wheel is zero.

According to the invention of claim 5, in the determining step, the power-on state signal is generated by operating a main switch lock of the electric vehicle with a key.

According to the invention of claim 6 of the claimed scope, in the determining step, the power-on state signal is generated by operating an application program of a mobile device.

According to the invention of claim 7, the electric vehicle further includes a trigger button and a power switch, wherein, in the determination step, the power-on state signal is a remote controller approaching the vehicle body and pressing the power switch. Generated by triggering the button and then operating the power switch.

According to the invention of claim 8, in the determination step, the seat cushion open state signal is generated by operating a main switch lock of the electric vehicle with a key.

According to the invention of claim 9 of the claimed scope, in the determining step, the seat cushion open state signal is generated by operating an application program of a mobile device.

According to the invention of claim 10, the electric vehicle further includes a trigger button and a seat cushion switch, wherein, in the determining step, the seat cushion open state signal is made by a remote controller approaching the vehicle body and pressing the seat cushion Trigger the button, and then operate the cushion switch to generate.

According to the invention of claim 11 of the claimed scope, the battery module includes a battery management system, wherein, in the unlocking step, the vehicle controller also transmits a shutdown message to the battery management system to shut down the battery module.

According to the invention of claim 12 of the scope of application, the present invention is a control method of a battery positioning device for an electric vehicle. The electric vehicle includes a vehicle body, a battery module releasably positioned by the battery positioning device, and a battery module disposed in the vehicle. A vehicle controller of the vehicle body, a seat cushion that can be opened on the vehicle body, a seat cushion switch sensor connected to the seat cushion and used to sense whether the seat cushion is closed or not, and a seat cushion connected to the battery positioning device The switch, wherein, when the vehicle controller receives a signal that the power is on, a signal that the seat cushion is in an open state, and a signal that the battery positioning device is in a locked state, and the electric vehicle is in a stationary state. , the vehicle controller further controls an actuating element of the battery positioning device to drive the battery positioning device to unlock, so that the battery module is released from positioning and can be disassembled.

According to the invention of claim 13, the switch is a micro switch, and the actuating member is a solenoid valve.

In the invention of claim 1 or claim 12, the battery positioning device can lock the battery module when the electric vehicle is running, so as to avoid power failure caused by bumps during riding. When you want to release the battery positioning device, you must also confirm that the power is turned on by the correct user operation, ensure that the seat cushion is in the open state, confirm that the battery positioning device is indeed locked and can be unlocked, and that the vehicle body is not running. After the safe state, the vehicle controller transmits the control message to release the lock. In addition to ensuring the correct operation of the unlocking control mechanism, the safety of riding can be maintained by multiple insurances to avoid false triggering when the battery positioning device should not be unlocked.

In the invention of claim 2, the battery positioning device uses the actuating element to drive the mechanical locking element to actuate, which effectively simplifies the control operation of the vehicle controller.

In the inventions of items 3 and 4 in the scope of the patent application, the motor controller is directly used to control the rotation speed of the motor to zero, or the wheel speed sensor is used to confirm that the wheel speed of the wheel is zero. Determining that the electric vehicle is not in a running state can effectively optimize the riding safety of the electric vehicle and the reliability of the control of the battery positioning device.

In the inventions of items 5 to 7 in the scope of the patent application, the key, the application program, or the remote controller cooperates with the trigger button to confirm that the operation to turn on the power is performed by the correct user, in addition to effectively avoiding the electric The car is easily stolen, and it also provides another layer not in the electric car itself for releasing the control mechanism of the battery positioning device. on-premises assurance mechanism.

In the inventions of items 8 to 10 of the scope of application for patent, the seat cushion switch can be operated to open the seat cushion by triggering the key, the application program, or the remote control in conjunction with the trigger button, and then the seat cushion switch sensor generates a The seat cushion open state signal can be matched with different vehicle models to generate different modes of the seat cushion open state signal.

In the invention of claim 11, the battery management system can cooperate with the control of the vehicle controller to first turn off the power supply of the battery module, so as to avoid damage to the battery module due to disassembly under the power supply state.

In the invention claimed in claim 13, the use of components that are easy to obtain and simple to operate can simplify the operation process and directly improve the reliability of the operation.

201: Judgment step

202: Unlock Steps

4: Mobile Devices

5: Vehicle controller

61: Wheel speed sensor

62: Motor Controller

63: Cushion sensing switch

71: Micro switch

72: Key

73: Master switch lock

74: Communication control device

75: Power switch

76: Remote Control

77: Trigger button

8: Battery positioning device

81: Locks

82: Actuator

9: Battery module

91: Battery Management System

99: with firmware

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: FIG. 1 is a partial cross-sectional view illustrating an existing electric vehicle and a battery supplying power to the electric vehicle; FIG. 2 is a block flow diagram illustrating an embodiment of the control method of the battery positioning device of the electric vehicle of the present invention; FIG. 3 is a partial perspective view illustrating a locking member and a function of the battery positioning device. Figure 4 is a schematic flow diagram illustrating the operation mode of the electric vehicle in accordance with the embodiment; Figure 5 is a schematic diagram illustrating a situation in which a key operation is used to obtain a power-on state signal; A schematic flowchart illustrating another implementation of the embodiment to match the electric vehicle; and FIG. 7 is a schematic flowchart similar to FIG. 4 , illustrating another implementation of the embodiment to match the electric vehicle.

Referring to FIGS. 2 to 4 , an embodiment of the control method of the battery positioning device for an electric vehicle of the present invention is suitable for matching with an electric vehicle equipped with a battery positioning device 8 . The electric vehicle includes a vehicle body, a A wheel of the vehicle body, a wheel speed sensor 61 connected to the wheel, a battery module 9 releasably positioned by the battery positioning device 8, a motor powered by the battery module 9, a A motor controller 62 connected to the motor and used to control the rotational speed of the motor, a vehicle controller (VCU) 5 disposed on the vehicle body, a seat cushion openably covering the vehicle body, and a seat cushion connected to the vehicle body And a seat cushion switch sensor 63 for sensing whether the seat cushion is closed or not, a micro switch 71 connected to the battery positioning device 8, and a main switch lock 73 for turning on the power. The battery is The positioning device 8 includes a locking member 81 that can move between a fixed position for locking the battery module 9 and an unlocking position, and an actuating member connected to the locking member 81 and used to control the action of the locking member 81 Piece 82. Wherein, the actuating element 82 can preferably be a solenoid valve which is easy to be controlled by electrical signals. The present embodiment includes a determination step 201 and an unlocking step 203 .

It should be explained in advance that, since the main technical point of this embodiment lies in the control of the battery positioning device 8, the body, the wheel, the wheel speed sensor 61, the motor, and the motor control of the electric vehicle The type of the device 62 , the seat cushion, or the seat cushion switch sensor 63 is not directly related to the technical main axis of this embodiment, so the exact type is not shown in this pattern, and there is common knowledge in the relevant technical field. The reader should be able to know the related technology directly from the names of the components recorded in this embodiment, so the details will not be repeated in the following.

The judging step 201 is mainly performed by the vehicle controller 5 , in order to ensure that the battery positioning device 8 releases the positioning of the battery module 9 under the condition that it will not affect the safety or other normal use, so the vehicle The controller 5 receives a power-on state signal for confirming the correct user, a seat cushion open state signal generated by the seat cushion switch sensor 63 sensing that the seat cushion is turned on, and a position of the battery confirmed by the micro switch 71 The device 8 has located the lock state signal of the battery module 9 and a safety signal confirming that the vehicle body is not in the running state.

Among them, the generation method of the power on state signal is matched with the different vehicle types. There are different ways of producing the same. Specifically, as shown in FIGS. 4 and 5 , it can be generated by operating a main switch lock 73 with a key 72 until the power is turned on (KEY ON). When matched with a vehicle type with networking function, another embodiment as shown in FIG. 6 can also be used to achieve a wireless connection with a communication control device 74 of the electric vehicle through a mobile device 4 such as a smart phone (eg Bluetooth, LTE technology), and then operate the power-on user interface of the application program (APP) installed in the mobile device 4 to achieve a control operation, and then control a power switch 75 of the electric vehicle through the communication control device 74 to supply power turn on, so that the vehicle controller 5 receives a power-on state signal. For the operation of a keyless vehicle, as shown in FIG. 7, a trigger button 77 is operated after a remote controller 76 is close to the vehicle body, and then the power switch 75 is operated to turn on the power supply, thereby making the The vehicle controller 5 receives a power-on state signal. Thereby, it can be ensured that the action of turning on the power supply is performed by a user with correct authority, so as to prevent malicious operation by others from affecting the use safety.

Next, regarding whether the seat cushion is turned on or not, it is considered that it is impossible to turn on the seat cushion in the riding state. On the contrary, if the seat cushion is turned on, the electric vehicle is less likely to be in the riding state. Moreover, if the battery positioning device 8 is to be dismantled and the battery module 9 is disassembled and replaced, the battery module 9 cannot be reliably operated unless the seat cushion is opened when the battery module 9 is disposed under the seat cushion. Similarly, according to different vehicle types, the seat cushion open state signal can be sensed by the seat cushion switch sensor 63 after the key 72 is used to operate the main switch lock 73 to open the seat cushion as shown in FIG. 4 and FIG. 5 . Check that the seat cushion is turned on, and then Generates the seat cushion on state signal. As shown in FIG. 6 , for a vehicle type that can be connected to the communication control device 74 of the electric vehicle through a mobile device 4 , the mobile device 4 can be operated to achieve a wireless connection with the communication control device 74 of the electric vehicle , directly operate the application program installed in the mobile device 4, control the seat cushion to open through the communication control device 74 through the user interface that controls the opening of the seat cushion in the application program, and then also use the seat cushion switch sensor 63 senses that the seat cushion is turned on, so that the vehicle controller 5 receives the signal of the seat cushion turning on state. It is also possible to cooperate with the operation of the keyless vehicle as shown in FIG. 7. After the remote controller 76 is close to the vehicle body and the trigger button 77 is pressed, a seat cushion switch (not shown in the figure) is operated to open the seat cushion. When the seat cushion switch sensor 63 senses that the seat cushion is turned on, a signal of the seat cushion opening state is sent to the vehicle controller 5 .

As shown in FIG. 3 , in order to directly confirm that the battery positioning device 8 locks the battery module 9 , the battery module 9 has a fitting member 99 that can cooperate with the locking member 81 . Specifically, the locking member 81 Preferably, it is a hook, and the fitting member 99 is a fastener that can be matched with the shape of the hook to locate each other. When the locking member 81 locks the fitting member 99, it is determined that the battery positioning device 8 locks the battery module 9, and the lock state signal is generated.

In addition, to obtain the safety signal, the wheel speed sensor 61 can be used to confirm that the rotation speed of the wheel is zero, that is, the wheel is not rotating, or the motor controller 62 can directly control the rotation speed of the motor to be zero, i.e. make sure the motor is not driving When the wheel rotates and runs, it can be ensured that the electric vehicle is not in a running state, and the safety signal can be generated.

Referring back to FIG. 2 to FIG. 4 , the unlocking step 202 is when the vehicle controller 5 receives the power-on state signal, the seat cushion open state signal, the lock state signal, and the safety signal, that is, it is simultaneously confirmed as having The power-on operation performed by the user with correct authorization, the seat cushion is in the open state of the seat cushion, the battery positioning device 8 has locked the battery module 9 and can be released, and the electric vehicle is in a non-driving state, the vehicle controller 5 The actuating member 82 of the battery positioning device 8 is controlled to be unlocked, that is, the locking of the battery module 9 by the locking member 81 is released. When the locking member 81 is allowed to act to be opened, it can be directly controlled to open or can be opened by additional operation methods such as buttons and remote controls, so that the locking member 81 can be separated from the fitting 99 of the battery module 9, so as to The battery module 9 can be disassembled by releasing the positioning. In addition, the battery module 9 further includes a battery management system 91 , and the vehicle controller 5 also transmits a shutdown message to the battery management system 91 to shut down the battery module 9 to further ensure that the battery module 9 will not continue The battery module 9 can be removed normally after being powered on, so as to avoid damage caused by the battery module 9 being removed under the condition of power supply.

Conversely, if the vehicle controller 5 does not receive the power-on state signal, the seat cushion open state signal, the lock state signal, and the safety signal at the same time, the locking member 81 will continue to be locked on the fitting firmware 99. Through the purely mechanical locking mechanism, the stable insertion of the battery module 9 can be further ensured to avoid the electric vehicle running in the reverse direction. The power supply is affected by the bumpy road.

In summary, the control method of the battery positioning device of the electric vehicle of the present invention can simultaneously determine whether the power-on operation performed by the user with the correct identity, confirm whether the seat cushion is turned on, confirm the non-driving state, and confirm the Whether the battery positioning device 8 is indeed locked, together with forming a control mechanism to ensure whether the battery positioning device 8 can release the locking of the battery module 9, in addition to preventing the battery module 9 from falling off and power off when the electric vehicle is running In this case, the safety and stability of riding can be maintained through multiple insurances, and false triggering can be avoided when the locked state of the battery positioning device 8 should not be released. Therefore, the object of the present invention can be achieved indeed.

However, the above are only examples of the present invention, and should not limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the application for patent of the present invention and the content of the patent specification are still within the scope of the present invention. within the scope of the invention patent.

201···························································································· 202・・・・Unlocking steps

Claims (11)

A control method of a battery positioning device for an electric vehicle, the electric vehicle comprises a vehicle body, a battery module releasably positioned by the battery positioning device, a vehicle controller disposed on the vehicle body, and an openable battery module. A seat cushion covered on the vehicle body, a seat cushion switch sensor connected to the seat cushion and used to sense whether the seat cushion is closed or not, and a switch connected to the battery positioning device, the battery positioning device includes a A locking piece that locks the battery module to move between a fixed position and an open position, and an actuating piece connected to the locking piece and used to control the movement of the locking piece. The control of the battery positioning device of the electric vehicle The method includes: a judging step, the vehicle controller receives a power-on state signal for confirming a correct user, a seat cushion open state signal generated by the seat cushion switch sensor sensing the seat cushion is turned on, a The switch confirms that the battery positioning device has positioned the battery module's locking state signal, and a safety signal confirming that the vehicle body is not in a running state; and an unlocking step, the vehicle controller receives the power-on state signal, the When the seat cushion is opened state signal, the lock state signal, and the safety signal, the actuating member of the battery positioning device is controlled to act to unlock, so that the battery module is released from positioning and can be disassembled. The method for controlling a battery positioning device for an electric vehicle according to claim 1, the electric vehicle further comprises a motor and a motor controller connected to the motor, wherein, in the determining step, the safety signal is the motor control The controller controls the speed of the motor to be zero. According to the control method of the battery positioning device of the electric vehicle according to claim 1, the battery The motor vehicle further includes a wheel and a wheel speed sensor connected to the wheel, wherein, in the determining step, the safety signal is generated by confirming that the rotation speed of the wheel is zero by using the wheel speed sensor. The method for controlling a battery positioning device for an electric vehicle as claimed in claim 1, wherein, in the judging step, the power-on state signal is generated by operating a main switch lock of the electric vehicle with a key. The method for controlling a battery positioning device for an electric vehicle as claimed in claim 1, wherein, in the determining step, the power-on state signal is generated by operating an application program of a mobile device. The method for controlling a battery positioning device for an electric vehicle as claimed in claim 1, the electric vehicle further comprises a trigger button and a power switch, wherein, in the judging step, the power-on state signal is approached by a remote control The vehicle body is generated by pressing the trigger button and then operating the power switch. The control method of a battery positioning device of an electric vehicle as claimed in claim 1, wherein, in the determining step, the seat cushion open state signal is generated by operating a main switch lock of the electric vehicle with a key. The method for controlling a battery positioning device for an electric vehicle as claimed in claim 1, wherein, in the judging step, the seat cushion open state signal is generated by operating an application program of a mobile device. The method for controlling a battery positioning device for an electric vehicle according to claim 1, wherein the electric vehicle further comprises a trigger button and a seat cushion switch, wherein, in the judging step, the seat cushion on state signal is approached by a remote control The vehicle body is generated by pressing the trigger button and then operating the seat cushion switch. According to the control method of the battery positioning device of the electric vehicle according to claim 1, the The battery module includes a battery management system, wherein, in the unlocking step, the vehicle controller also transmits a shutdown message for shutting down the battery module to the battery management system. A control method of a battery positioning device for an electric vehicle, the electric vehicle comprises a vehicle body, a battery module releasably positioned by the battery positioning device, a vehicle controller disposed on the vehicle body, and an openable battery module. A seat cushion covered on the vehicle body, a seat cushion switch sensor connected to the seat cushion and used to sense whether the seat cushion is closed or not, and a switch connected to the battery positioning device, wherein the switch is a micro switch , when the vehicle controller receives a signal that the power supply is on, a signal that the seat cushion is in an open state, and a signal that the battery positioning device is in a locked state, and the electric vehicle is in a stationary state, the vehicle is in a stationary state. The controller further controls an actuating member of the battery positioning device, and the actuating member is a solenoid valve, which drives the battery positioning device to unlock, so that the battery module is released from positioning and can be disassembled.

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