Vehicle body controller awakening device and electric vehicle

Abstract

The utility model discloses an automobile body controller awakening device and an electric automobile, and belongs to the field of electric automobiles. The vehicle body controller awakening device comprises a first awakening module and a second awakening module, the first awakening module and the second awakening module are both connected with a vehicle body controller, the first awakening module is used for outputting a first awakening signal when a charging gun is inserted into a vehicle charging interface, and the vehicle body controller is awakened according to the first awakening signal; and the second awakening module is used for outputting a second awakening signal when the charging gun is pulled out of the vehicle charging interface, and awakening the vehicle body controller according to the second awakening signal, so that the vehicle body controller can be awakened when the charging gun is in the gun inserting state and the gun pulling state, and damage to the charging pile caused by mistaken starting of the vehicle in the gun inserting state is avoided.

Description

Technical Field

[0001] The utility model relates to the field of electric vehicles, in particular to a vehicle body controller awakening device and an electric vehicle. Background Art

[0002] The Charging Connection Confirmation 1 (CC1) wake-up circuit wakes up the Body Control Module (BCM) by detecting the plug-in signal from the charging gun. However, this wake-up method puts the BCM into a dormant state during the EV charging process. The BCM cannot detect the plug-in signal from the charging gun. This can lead to the vehicle being started by mistake while the charging gun is still plugged into the EV charging socket, causing damage to the charging station. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a vehicle body controller wake-up device that is designed to wake up the vehicle body controller when the charging gun is in both the plugged-in and unplugged states, thus preventing damage to the charging station caused by accidentally starting the car while the gun is plugged in.

[0004] The utility model also provides an electric vehicle with the vehicle body controller awakening device.

[0005] According to the first embodiment of the utility model, the vehicle body controller awakening device includes:

[0006] A charging guidance module is provided with a first port, the first port is used to connect to the vehicle charging interface of the electric vehicle, and the charging guidance module is used to process a charging connection confirmation signal received by the vehicle charging interface;

[0007] a first wake-up module, wherein an input end of the first wake-up module is connected to the first port, an output end of the first wake-up module is connected to a body controller of the electric vehicle, and the first wake-up module is configured to generate a first wake-up signal to wake up the body controller when a charging gun is inserted into a charging port of the vehicle;

[0008] A second wake-up module, wherein the input end of the second wake-up module is connected to the first port, the output end of the second wake-up module is connected to the body controller, and the second wake-up module is used to generate a second wake-up signal to wake up the body controller when the charging gun is unplugged from the vehicle charging interface.

[0009] According to some embodiments of the present invention, the charging guidance module is also provided with a second port, and the charging guidance module includes a first switch submodule and a second switch submodule, the first switch submodule and the second switch submodule are connected, the first port is set at one end of the second switch submodule, the first port is respectively connected to the first wake-up module and the second wake-up module, the second port is set at the other end of the second switch submodule, and the second port is used to connect to the body controller.

[0010] According to some embodiments of the present invention, the awakening device further includes:

[0011] a first filtering module, wherein an input end of the first filtering module is connected to the first wake-up module, an output end of the first filtering module is connected to the vehicle body controller, and the first filtering module is used to filter the first wake-up signal;

[0012] A second filtering module, wherein an input end of the second filtering module is connected to the second wake-up module, an output end of the second filtering module is connected to the vehicle body controller, and the second filtering module is used to filter the second wake-up signal.

[0013] According to some embodiments of the present invention, the awakening device further includes a port protection module, an input end of the port protection module is connected to the vehicle charging interface, and an output end of the port protection module is connected to the first port.

[0014] According to some embodiments of the present invention, the first wake-up module includes a first capacitor, a first resistor, a second resistor and a first diode; the first capacitor is connected to the first resistor, and the first resistor is connected to the second resistor and the first diode respectively; the positive electrode of the first diode is grounded, and the negative electrode of the first diode is used to output the first wake-up signal.

[0015] According to some embodiments of the present invention, the second wake-up module includes a second capacitor, a third resistor, a fourth resistor, a second diode and a transistor, the second capacitor is connected to the third resistor, the third resistor is respectively connected to the fourth resistor, the second diode and the transistor; the collector of the transistor is used to output the second wake-up signal.

[0016] According to some embodiments of the present invention, the first filtering module includes a fifth resistor and a third capacitor, one end of the fifth resistor is connected to the first wake-up module, and the other end of the fifth resistor is connected to the third capacitor.

[0017] According to some embodiments of the present invention, the second filtering module includes a sixth resistor, a seventh resistor and a fourth capacitor, one end of the sixth resistor is connected to the second wake-up module, and the other end of the sixth resistor is connected to the seventh resistor and the fourth capacitor respectively.

[0018] According to some embodiments of the present invention, the port protection module includes a third diode, a fifth capacitor and a sixth capacitor, one end of the third diode and one end of the fifth capacitor are respectively connected to the vehicle charging interface, the other end of the fifth capacitor is connected to one end of the sixth capacitor, and the other end of the sixth capacitor and the other end of the third diode are grounded.

[0019] An electric vehicle according to an embodiment of the second aspect of the present utility model includes the vehicle body controller wake-up device according to the embodiment of the first aspect.

[0020] The electric vehicle according to the embodiment of the present invention has at least the following beneficial effects: the electric vehicle adopts the above-mentioned body controller wake-up device, and wakes up the body controller in the gun plugged in state or the gun pulled out state, so that the electric vehicle can detect the status of the charging gun in different charging states, thereby avoiding damage to the charging pile due to starting the electric vehicle due to misoperation.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a schematic structural diagram of a vehicle body controller wake-up device according to an embodiment of the present utility model;

[0024] Figure 2 This is another structural diagram of the vehicle body controller wake-up device according to an embodiment of the present utility model;

[0025] Figure 3 This is another schematic diagram of the vehicle body controller wake-up device according to an embodiment of the present invention;

[0026] Reference numerals: 100 charging guidance module; 200 first wake-up module; 300 second wake-up module; 400 vehicle body controller; 500 first filtering module; 600 second filtering module. DETAILED DESCRIPTION

[0027] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0029] In the description of this utility model, "several" means more than one, "plurality" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of the terms "first" and "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] In the description of the present invention, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0032] The Charging Connection Confirmation 1 (CC1) wake-up circuit wakes up the Battery Management System (BCM) by detecting the plug-in signal from the charging gun. However, this wake-up method puts the BCM into a dormant state during the EV charging process. The BCM cannot detect the plug-in signal from the charging gun. This can cause the vehicle to start due to misoperation while the charging gun is still plugged into the EV charging socket, resulting in damage to the charging station.

[0033] Based on this, the utility model proposes a body controller awakening device and an electric vehicle, which can wake up the body controller when the charging gun is in the plugged-in state and the unplugged state, thereby avoiding damage to the charging pile caused by starting the electric car in the plugged-in state.

[0034] In a first aspect, a vehicle body controller wake-up device according to an embodiment of the present invention is applied to an electric vehicle. The electric vehicle has a vehicle charging port and a body controller. The vehicle charging port includes a CC1 pin. The CC1 pin is used to confirm whether the charging gun and the vehicle charging port are properly connected. The CC1 pin is the connection confirmation line of the charging pile and is used to generate a CC1 signal, which is detected by the charging pile. Detection of the CC1 signal helps the charging pile determine whether the vehicle is successfully connected. The charging pile is used to charge the electric vehicle and provides a 12V power supply. The charging pile is equipped with a charging gun that can be plugged into the vehicle charging port for DC fast charging of the electric vehicle. The charging pile includes a built-in charging guidance module, which is connected to the charging gun and is used to adjust the voltage input from the charging gun to the vehicle charging port. The built-in charging guidance module includes a 12V regulated power supply, a first detection resistor, a second detection resistor, and a switch. The second detection resistor is connected in parallel with the switch. The 12V regulated power supply is connected to the first detection resistor, which is connected to the second detection resistor and the switch. The resistance of the first detection resistor can be 2kΩ, and the resistance of the second detection resistor can be 3kΩ. The output voltage of the charging gun is adjusted according to whether the switch is opened or closed, and the port voltage of the vehicle charging interface is adjusted according to the output voltage, so as to charge the body controller according to the adjusted port voltage.

[0035] Reference Figure 1 The vehicle body controller wake-up device includes a charging guidance module 100, a first wake-up module 200, and a second wake-up module 300. The charging guidance module 100 is provided with a first port for connecting to the vehicle charging interface of the electric vehicle. The charging guidance module is responsible for processing a charging connection confirmation signal received by the vehicle charging interface, which is a CC1 signal. The connection between the charging gun and the vehicle charging interface is confirmed based on the processing result of the CC1 signal. The first port is a circuit node with the same potential as the input of the first wake-up module 200 and the input of the second wake-up module 300. The processing result of the CC1 signal can be represented by a port voltage output by the charging guidance module 100 based on the status of the CC1 signal. The connection relationship can reflect the status of the charging gun. If the connection relationship indicates that the charging gun is connected to the vehicle charging interface, the charging gun is in the plugged-in state. If the connection relationship indicates that the charging gun is disconnected from the vehicle charging interface, the charging gun is in the unplugged state.

[0036] The first wake-up module 200 is a plug-in wake-up module. Its input is connected to the first port of the charging guidance module 100, and its output is connected to the vehicle's body controller 400. The second wake-up module 300 is a plug-in wake-up module. Its input is connected to the first port of the charging guidance module 100, and its output is connected to the vehicle's body controller 400. Both the first and second wake-up modules 200 and 300 wake up the vehicle's body controller 400 based on the state of the charging gun during charging. The wake-up type, which includes plug-in wake-up and pull-out wake-up, is recorded by the wake-up controller. The body controller provides operational prompts based on the wake-up type, indicating the charging gun's state, to prevent damage to the charging station caused by improper operation. The first wake-up module 200 (wake-up device) is configured to output a first wake-up signal based on the CC1 signal generated by the charging gun when the charging gun is inserted into the vehicle's charging port. This first wake-up signal is a plug-in wake-up signal, and the first wake-up signal is used to wake up the dormant body controller 400. The second wake-up module 300 is used to generate a second wake-up signal based on the interruption or disappearance of the CC1 signal in the charging gun when the charging gun is unplugged from the vehicle's charging port (i.e., when the charging gun performs the unplugging action). This second wake-up signal is called a plug-unplugging wake-up signal, and the body controller 400, which is in a dormant state, is awakened by the second wake-up signal. It should be noted that to reduce power consumption during vehicle charging, the body controller will re-enter the dormant state after a period of wake-up.

[0037] Both the first and second wake-up signals are high-level signals. When the charging gun is not connected to the vehicle's charging port, the first and second wake-up modules both output low-level signals. When the charging gun is plugged in, a high-level plug-in wake-up signal, the first wake-up signal, is generated. When the charging gun is unplugged, a high-level unplug-out wake-up signal, the second wake-up signal, is generated. After the plug-in and unplug actions are complete, both signals return to a low level, resolving the issue of the vehicle body controller being unable to sleep after being plugged in and woken up.

[0038] The embodiment of the present invention includes both a plug-in wake-up module and a pull-out wake-up module, which can effectively detect different states during the electric vehicle charging process, preventing the vehicle from being started without knowing whether the gun is pulled out, thereby damaging the charging pile. The different states of the charging process include: before the gun is plugged in, no charging; when the gun is plugged in, a wake-up signal is generated and the body controller wakes up; after the gun is plugged in, the body controller enters a dormant state after waking up for a period of time; before the gun is pulled out, the body controller is in a dormant state; when the gun is pulled out, a wake-up signal is generated and the body controller wakes up; after the gun is pulled out, the body controller enters a dormant state after a period of time.

[0039] Reference Figure 2In some embodiments, the wake-up device further includes a first filtering module 500 and a second filtering module 600. The first filtering module is a gun insertion wake-up filtering module. The input of the first filtering module 500 is connected to the first wake-up module 200, and the output of the first filtering module 500 is connected to the vehicle body controller 400. The first filtering module 500 is configured to filter the first wake-up signal and wake up the vehicle body controller 400 based on the filtered first wake-up signal. The second filtering module is a gun removal wake-up filtering module. The input of the second filtering module 600 is connected to the second wake-up module 300, and the output of the second filtering module 600 is connected to the vehicle body controller 400. The second filtering module 600 is configured to filter the second wake-up signal and wake up the vehicle body controller 400 based on the filtered second wake-up signal. One end of the charging guidance module 100 is connected to the first wake-up module 200 and the second wake-up module 300, respectively, and the other end of the charging guidance module 100 is connected to the vehicle body controller 400. The charging guidance module 100 is provided with a switch. The body controller 400 sends a first control instruction to the charging guidance module 100. The charging guidance module 100 controls the switch to open or close according to the first control instruction to adjust the port voltage of the vehicle charging interface CC1 pin. The output voltage of the charging guidance module 100 is updated according to the adjusted port voltage, and the body controller 400 is charged according to the output voltage.

[0040] In some embodiments, the wake-up device also includes a port protection module, the input end of the port protection module is connected to the vehicle charging interface, and the output end of the port protection module is respectively connected to the first wake-up module 200, the second wake-up module 300 and the charging guidance module 100. The port protection module is used to perform port protection on the vehicle charging interface when the charging gun is inserted into the vehicle charging interface or when the charging gun is unplugged from the vehicle charging interface to avoid damage to the wake-up device due to factors such as excessive port voltage and excessive port current.

[0041] Reference Figure 3In some embodiments, the first wake-up module 200 includes a first capacitor C11, a first resistor R17, a second resistor R18, and a first diode D7, where the first diode is an ordinary diode. The capacitance of the first capacitor C11 can be 1.1 μF, the resistance of the first resistor R17 can be 4.7 kΩ, and the resistance of the second resistor R18 can be 51 kΩ. The first end of the first capacitor C11 is connected to the port protection module, the second end of the first capacitor C11 is connected to the first end of the first resistor R17, the second end of the first resistor R17 is respectively connected to the first end of the second resistor R18 and the cathode of the first diode D7, and the second end of the second resistor R18 and the anode of the first diode are grounded. The cathode of the first diode D7 is used to output the first wake-up signal. When the charging gun is inserted into the vehicle's charging port, the current from the charging gun passes through the vehicle's charging port and the port protection module before entering the first capacitor C11. Based on the principle that the voltage across a capacitor will not change suddenly, the voltage at the first end of capacitor C11 rises, and the voltage at the second end also rises. Because the capacitor has the function of passing AC and isolating DC, the first wake-up module generates a pulse signal of time t1, obtaining a first wake-up signal. t1 is the gun insertion wake-up time, i.e., the time it takes to wake up the body controller. When the vehicle is charging, the first wake-up module generates a low-level signal, putting the body controller into a dormant state. When the vehicle is fully charged and the charging gun is unplugged, the action of unplugging the gun causes the voltage at the first end of capacitor C11 to drop. The voltage at the first end is clamped by the voltage of the first diode D7, causing the voltage at the first end to remain low when the gun is unplugged, and the first wake-up module outputs a low-level signal.

[0042] Since the first capacitor C11 only generates a signal when the voltage suddenly changes, the first wake-up signal can be an edge-triggered signal. The first wake-up signal has a rising edge and a falling edge. The rising edge time is t11 and the falling edge time is t12, and t1 is between t11 and t12. The wake-up signal used to trigger the body controller can be designed according to the wake-up source trigger requirements. The rising edge or falling edge is selected according to the wake-up source trigger requirements. To meet the edge wake-up conditions, adjust the parameters such as the first capacitor C11 and the first resistor R17 to set the edge time and voltage peak of the gun plug wake-up signal.

[0043] The second wake-up module 300 includes a 12V regulated power supply, a second capacitor C2, a third resistor R9, a fourth resistor R1, a second diode D5, and a transistor Q4. The second diode D5 is a Schottky diode. The capacitance of the second capacitor C2 can be 1μF, the resistance of the third resistor R9 can be 10kΩ, and the resistance of the fourth resistor R1 can be 2kΩ. To ensure that the second wake-up circuit does not trigger falsely when the gun is plugged in, the transistor Q4 is a PNP transistor. A second diode D5 is connected in parallel between the base and emitter of the transistor Q4 to prevent excessive voltage between the base and emitter. This causes the transistor Q4 to be in the off state when the gun is plugged in, and the second wake-up circuit outputs a low-level signal. The first end of the second capacitor C2 is connected to the port protection module, and the second end of the second capacitor C2 is connected to the first end of the third resistor R9. The second end of the third resistor R9 is respectively connected to the first end of the fourth resistor R1, the anode of the second diode D5, and the base of the transistor Q4. The second end of the fourth resistor R1, the emitter of the transistor Q4, and the cathode of the second diode D5 are respectively connected to a 12V regulated power supply. When the charging gun is unplugged from the electric vehicle's vehicle charging port, the port voltage at the first end of the second capacitor C2 drops. Because the voltage across a capacitor does not change suddenly, the port voltage at the second end of the second capacitor C2 also drops. The drop in the base voltage of the transistor Q4 turns on, turning the transistor on. Because the capacitor has the function of passing AC and blocking DC, the collector of the transistor Q4 generates a pulse signal of time t2, resulting in the second wake-up signal.

[0044] Because the second capacitor C2 generates signals only through voltage mutations, the second wake-up module can generate an edge-triggered signal, so that the second wake-up signal has a rising edge and a falling edge, with the rising edge time being t21 and the falling edge time being t22, and t2 being between t21 and t22. Similarly, the rising edge or falling edge can be selected to trigger the wake-up based on the wake-up source trigger requirements of the body controller. To meet the edge wake-up conditions, the second capacitor C2 and the third resistor R9 are adjusted to set the edge time and voltage peak of the gun-drawing wake-up signal.

[0045] The first diode D7 can also be connected to the first filtering module 500, which includes a fifth resistor R19 and a third capacitor C12. The resistance of the fifth resistor R19 can be 4.7 kΩ, and the capacitance of the third capacitor C12 can be 0.1 μF. The cathode of the first diode D7 is connected to the first end of the fifth resistor R19, the second end of the fifth resistor R19 is connected to the first end of the third capacitor C12, and the second end of the third capacitor C12 and the anode of the first diode D7 are both grounded. The second end of the fifth resistor R19 or the first end of the third capacitor C12 is used as the output pin of the first filtering module, which can be used to output the first wake-up signal INSERT_WAKEUP after filtering.

[0046] The collector of transistor Q4 can also be connected to a second filtering module, which includes a sixth resistor R2, a seventh resistor R3, and a fourth capacitor C4. The resistance of the sixth resistor R2 can be 1kΩ, the resistance of the seventh resistor R3 can be 10kΩ, and the capacitance of the fourth capacitor C4 can be 0.1μF. The sixth resistor R2 and the seventh resistor R3 are connected in series, and the seventh resistor R3 and the fourth capacitor C4 are connected in parallel. One end of the seventh resistor R3 and the fourth capacitor C4 is grounded, and the other end of the seventh resistor R3 and the fourth capacitor C4 can both serve as output pins, which can be used to output the pull-out wake-up signal PULLOUT_WAKEUP.

[0047] The port protection module includes a third diode D102, a fifth capacitor C103, and a sixth capacitor C104. The fifth and sixth capacitors C103 and C104 are connected in series and in parallel with the third diode D102. The third diode D102 is a bidirectional transient voltage suppressor (TVS) diode that quickly absorbs transient voltage disturbances such as overvoltage, overvoltage, and static electricity, protecting components and devices within the circuit from damage. One end of the third diode D102 is grounded, and the other end is connected to the vehicle charging port L4_CHAOJ I_CC1, the first wake-up module, the second wake-up module, and the charging guidance circuit.

[0048] The charging guidance module 100 is also provided with a second port. It includes a first switch submodule and a second switch submodule. The first and second switch submodules are connected. The first port is provided at one end of the second switch submodule and is connected to the first wake-up module 200 and the second wake-up module 300, respectively. The second port is provided at the other end of the second switch submodule and is used to connect to the vehicle body controller. The first switch submodule includes a transistor Q103, a resistor R110, and a resistor R112. The resistance of resistor R110 can be 4.7 kΩ, and the resistance of resistor R112 can be 47 kΩ. Transistor Q103 is an NPN transistor. Resistor R112 is connected in parallel between the base and emitter of the transistor, and the emitter of the transistor is grounded. One end of resistor R110 is connected to the base of the transistor and resistor R112, respectively. The other end of resistor R110, MCU_CHAOJ I_S2_CTL, is connected to the first switch and the auxiliary power supply. The auxiliary power supply can be 3.3 V. The second switch submodule includes a 12V regulated power supply, a resistor R111, a MOS transistor Q102, resistors R20, R21, R25, and R114, and a capacitor C107. MOS transistor Q102 is an N-channel MOS transistor. The resistance of resistor R111 can be 10kΩ, the resistance of resistor R20 can be 1kΩ, the resistance of resistor R21 can be 6.8kΩ, the resistance of resistor R25 can be 2.2kΩ, the resistance of resistor R114 can be 47kΩ, and the capacitance of capacitor C107 can be 0.1μF. The 12V regulated power supply is connected to the first end of resistor R111. The second end of resistor R111 is connected to the collector of transistor Q103 and the gate of MOS transistor Q102, respectively. The source of MOS transistor Q102 is grounded, and the drain of MOS transistor Q102 is connected to resistor R20. When the wake-up device includes a port protection module, resistor R20 is connected to the first wake-up module, the second wake-up module, and the port protection module, respectively. The voltage at the node formed by the module connections is used as the port voltage, i.e., the first target voltage. When the wake-up device does not include a port protection module, resistor R20 is connected to the first wake-up module, the second wake-up module, and the vehicle charging port, respectively. The voltage at the node formed by the module connections is used as the port voltage, i.e., the first target voltage (the voltage of the vehicle charging port). Resistors R21 and R25 are connected in series to form a first branch, which is connected in parallel between the drain and source of MOS transistor Q102. Resistors R114 and capacitor C107 are connected in series to form a second branch, which is connected in parallel with resistor R25. The node between resistor R114 and capacitor C107 is the second port MCU_AD_CHJ I_CC1, which is connected to the vehicle body controller. The charging guidance module 100 collects the port voltage and sends it to the vehicle body controller, which controls the charging state of the charging guidance module 100 based on the port voltage.The body controller determines whether the port voltage is at a preset voltage. If not, it sends a control command to the charging guidance module 100. Based on the control command, it closes a switch within the charging guidance module to adjust the port voltage. The transient voltage of MCU_AD_CHJ I_CC1 is determined based on the adjusted port voltage. The body controller wakes up based on this transient voltage, and determines the wakeup type as CC1 charging wakeup. Furthermore, the steady-state voltage of MCU_AD_CHJ I_CC1 is determined based on the adjusted port voltage, and the body controller is charged based on this steady-state voltage. The preset voltage can be adjusted based on actual conditions. If the port voltage is at the preset voltage, the charging circuit is fully connected, and the electric vehicle can be charged. The charging guidance module 100 enables the wakeup device to independently detect the CC1 charging signal.

[0049] It should be noted that when the switch is closed, the transistor Q103 and the MOS transistor Q102 are in the on state, short-circuiting the resistors R112, R21 and R25 to adjust the port voltage according to the on states of the first switch submodule and the second switch submodule.

[0050] In a second aspect, embodiments of the present invention further provide an electric vehicle comprising the body controller wake-up device described in the first aspect. This electric vehicle employs the body controller wake-up device to wake up the body controller both when the charging plug is plugged in and out, thereby preventing damage to the charging station caused by starting the electric vehicle while the plug is plugged in.

[0051] While the embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not limited to the embodiments described above. Various modifications may be made within the scope of knowledge possessed by a person skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof may be combined with one another unless there is a conflict.

Claims

1. A vehicle body controller wake-up device, characterized in that: The awakening device includes: A charging guidance module is provided with a first port, the first port is used to connect to the vehicle charging interface of the electric vehicle, and the charging guidance module is used to process a charging connection confirmation signal received by the vehicle charging interface; a first wake-up module, wherein an input end of the first wake-up module is connected to the first port, an output end of the first wake-up module is connected to a body controller of the electric vehicle, and the first wake-up module is configured to generate a first wake-up signal to wake up the body controller when a charging gun is inserted into a charging port of the vehicle; A second wake-up module, wherein the input end of the second wake-up module is connected to the first port, the output end of the second wake-up module is connected to the body controller, and the second wake-up module is used to generate a second wake-up signal to wake up the body controller when the charging gun is unplugged from the vehicle charging interface.

2. The vehicle body controller awakening device according to claim 1, characterized in that: The charging guidance module is also provided with a second port, and the charging guidance module includes a first switch submodule and a second switch submodule. The first switch submodule and the second switch submodule are connected. The first port is set at one end of the second switch submodule, and the first port is respectively connected to the first wake-up module and the second wake-up module. The second port is set at the other end of the second switch submodule, and the second port is used to connect to the body controller.

3. The vehicle body controller awakening device according to claim 1, characterized in that: The awakening device further includes: a first filtering module, wherein an input end of the first filtering module is connected to the first wake-up module, an output end of the first filtering module is connected to the vehicle body controller, and the first filtering module is used to filter the first wake-up signal; A second filtering module, wherein an input end of the second filtering module is connected to the second wake-up module, an output end of the second filtering module is connected to the vehicle body controller, and the second filtering module is used to filter the second wake-up signal.

4. The vehicle body controller awakening device according to claim 1, characterized in that: The awakening device further includes a port protection module, an input end of the port protection module is connected to the vehicle charging interface, and an output end of the port protection module is connected to the first port.

5. The vehicle body controller awakening device according to any one of claims 1 to 4, characterized in that: The first wake-up module includes a first capacitor, a first resistor, a second resistor and a first diode; the first capacitor is connected to the first resistor, and the first resistor is connected to the second resistor and the first diode respectively; the positive electrode of the first diode is grounded, and the negative electrode of the first diode is used to output the first wake-up signal.

6. The vehicle body controller awakening device according to any one of claims 1 to 4, characterized in that: The second wake-up module includes a second capacitor, a third resistor, a fourth resistor, a second diode and a transistor, the second capacitor is connected to the third resistor, the third resistor is respectively connected to the fourth resistor, the second diode and the transistor; the collector of the transistor is used to output the second wake-up signal.

7. The vehicle body controller awakening device according to claim 3, characterized in that: The first filtering module includes a fifth resistor and a third capacitor, one end of the fifth resistor is connected to the first wake-up module, and the other end of the fifth resistor is connected to the third capacitor.

8. The vehicle body controller awakening device according to claim 3, characterized in that: The second filtering module includes a sixth resistor, a seventh resistor and a fourth capacitor. One end of the sixth resistor is connected to the second wake-up module, and the other end of the sixth resistor is connected to the seventh resistor and the fourth capacitor respectively.

9. The vehicle body controller awakening device according to claim 4, characterized in that: The port protection module includes a third diode, a fifth capacitor and a sixth capacitor. One end of the third diode and one end of the fifth capacitor are respectively connected to the vehicle charging port, the other end of the fifth capacitor is connected to one end of the sixth capacitor, and the other end of the sixth capacitor and the other end of the third diode are grounded.

10. An electric vehicle, characterized in that: It comprises the vehicle body controller wake-up device as described in any one of claims 1 to 9.

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