Vehicle awakening system suitable for alternating current charging of electric vehicle

Abstract

The utility model discloses a vehicle awakening system suitable for alternating current charging of an electric vehicle, which comprises a power supply device, a vehicle control device, a switch controller, a fourth switch, a CC leading-out wire, a power supply interface module and a vehicle interface module, the power supply device is electrically connected with the power supply interface module, and the power supply interface module is detachably connected with the vehicle interface module. The power supply interface module is electrically connected with the vehicle interface module, the vehicle interface module is electrically connected with a vehicle control device in the vehicle body, the vehicle control device is electrically connected with the vehicle-mounted charger, the power supply control device can be electrically connected with a second detection point in the vehicle control device, and the switch controller is used for controlling the fourth switch. And the fourth switch is electrically connected with a vehicle control device through a CC leading-out wire. Through the arrangement of a switch controller, a fourth switch and a CC outgoing line, CC signal on-off generated when the charging gun head is plugged and unplugged again can be periodically simulated, and then a vehicle control device is activated, so that the vehicle is automatically awakened.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric automobile technical field especially to a kind of vehicle wake-up system suitable for electric automobile alternating current charging. BACKGROUND

[0002] With the rapid development of new energy electric vehicle market, electric vehicle charging energy supplement technology is also rapidly developing, how to conveniently and reliably supplement new energy electric vehicle energy has great practical demand, especially in the community and other scenarios of destination charging demand of personnel-intensive, how to meet the growing demand of electric vehicle daily charging in the case of limited capacitance, it is a prominent problem that needs to be solved as soon as possible.

[0003] Increasing power grid capacitance is the most direct solution, but this method is high in cost, long in construction period, and difficult to implement in a short time, while the number of electric vehicles in China is growing rapidly, and the problem of daily charging is still prominent, by increasing the utilization rate of single pile through charging pile sharing and orderly charging based on the existing power grid capacitance, more electric vehicles can be charged, and this new concept has developed in the industry. In the process of realizing electric vehicle sharing and orderly charging, it is necessary to solve the problem of vehicle end hibernation when some vehicles are in waiting queue state

[0004] At present, in the community and other destination charging scenarios, electric vehicles that need to be charged are parked in designated shared charging spaces, and the parking time of the vehicles is used for a long time, such as at night or other idle time, to realize the charging of electric vehicles in batches under the condition of limited capacitance, and to maximize the actual utilization rate of charging piles under the condition of limited capacitance. In this way, additional power grid capacitance does not need to be added, and the problem of electric vehicle energy supplement charging is solved.

[0005] However, to realize electric vehicle sharing and orderly charging, electric vehicles with charging demand need to plug in the charging gun head in advance, make reservations and queue to put the vehicles in waiting charging state in advance, and meet the requirements of alternating current charging national standard GB / T 18487.1-2015 for alternating current charging control guide circuit and control principle. When the gun head and the vehicle socket are in complete connection state, the connection confirmation CC signal connection is completed, and when the control guide function signal CP is in disconnected or +12 direct current voltage output state for a long time, the electric vehicle end judges that the transaction is completed, and the vehicle end enters hibernation state automatically due to its own power loss design. However, when the vehicle is in hibernation state, the most reliable method of the existing wake-up vehicle control device is to plug the charging gun head again, which is reliable, but it is difficult to realize in practice. When the vehicle is in queue state, the vehicle owner has left, and it is difficult to find the hibernation state of the vehicle in time. UTILITY MODEL CONTENTS

[0006] The utility model discloses a vehicle awakening system suitable for electric automobile alternating current charging, which is used to solve the above technical problems.

[0007] The utility model discloses a technical scheme as follows:

[0008] A vehicle awakening system suitable for electric automobile alternating current charging, comprising a power supply device, a vehicle control device, a switch controller, a fourth switch, a CC lead-out line, a power supply interface module and a vehicle interface module, wherein the power supply device is electrically connected with the power supply interface module, the power supply interface module is detachably connected with the vehicle interface module, the power supply interface module is electrically connected with the vehicle interface module, the vehicle interface module is electrically connected with the vehicle control device in the vehicle body, and the vehicle control device is electrically connected with a vehicle-mounted charger.

[0009] The power supply device is provided with a power supply control device, the power supply control device can be electrically connected with a second detection point in the vehicle control device, the switch controller and the fourth switch are arranged in the power supply device, the switch controller is used for controlling the fourth switch, and the fourth switch is electrically connected with the vehicle control device through the CC lead-out line.

[0010] Preferably, the power supply device is provided with a first switch and a first detection point, the power supply control device is provided with a +12V wire, the first switch can be electrically connected with the +12V wire and the first detection point, and the first detection point can be electrically connected with the second detection point.

[0011] Preferably, the vehicle control device is provided with a second switch on a circuit connected with the vehicle-mounted charger.

[0012] Preferably, the vehicle control device is further provided with a third detection point, and the fourth switch is electrically connected with the third detection point.

[0013] Further preferably, the vehicle awakening system further comprises a third switch, and the third switch is arranged on a circuit in which the fourth switch and the third detection point are connected.

[0014] Preferably, the vehicle awakening system further comprises a first resistor and a second resistor, the first resistor and the second resistor are arranged on the circuit in which the fourth switch and the third detection point are connected, the first resistor is arranged in parallel with the third switch, and the second resistor is arranged in series with the third switch.

[0015] Preferably, the vehicle awakening system further comprises an alternating current power supply circuit, and the alternating current power supply circuit is electrically connected with the power supply device and the vehicle-mounted charger.

[0016] As a further preferred, a contactor is also included, which is provided in the power supply device and is arranged on the AC power supply circuit.

[0017] The above technical solution has the following advantages or beneficial effects:

[0018] In the utility model, through the setting of switch controller, fourth switch and CC lead-out wire, the CC signal on-off of periodic simulation of charging gun head replugging can be realized, and then the vehicle control device is activated, so that the vehicle is automatically woken up. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the circuit diagram of the vehicle wake-up system suitable for the AC charging of the electric vehicle in the utility model.

[0020] In the figure: 1, power supply device; 2, vehicle control device; 3, switch controller; 4, fourth switch; 5, CC lead-out wire; 6, power supply interface module; 7, vehicle interface module; 8, on-board charger; 9, PE wire; 10, power supply control device; 11, second detection point; 12, first switch; 13, first detection point; 14, +12V wire; 15, second switch; 16, third detection point; 17, third switch; 18, first resistor; 19, second resistor; 20, AC power supply circuit; 21, contactor. DETAILED DESCRIPTION

[0021] The technical solutions of the utility model will be described clearly and completely below in combination with the drawings, obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the protection scope of the utility model.

[0022] In the description of the utility model, it needs to be explained that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like appear, the indicated orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as the limitation of the utility model. In addition, if the terms "first", "second", "third" appear, they are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, if the term "installation", "connection", "connect" appears, it should be understood in a broad sense, for example, it can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements, the above-mentioned term in the utility model can be understood according to specific circumstances by the ordinary skill in the art.

[0024] Figure 1 It is the circuit diagram of the vehicle wake-up system suitable for the alternating current charging of electric vehicle in the utility model, please see Figure 1 As shown in the figure, a preferred embodiment is shown, a vehicle wake-up system suitable for the alternating current charging of electric vehicle is shown, including power supply equipment 1, vehicle control device 2, switch controller 3, fourth switch 4 (S4), CC lead-out wire 5, power supply interface module 6 and vehicle interface module 7, wherein, power supply equipment 1 is electrically connected with power supply interface module 6, power supply interface module 6 is detachably connected with vehicle interface module 7, power supply interface module 6 is electrically connected with vehicle interface module 7, vehicle interface module 7 is electrically connected with vehicle control device 2 in the vehicle body, and vehicle control device 2 is electrically connected with on-board charger 8;In the embodiment, see Figure 1 As shown in the figure, wherein the power supply interface module 6 is a charging gun head, and the vehicle interface module 7 is a charging interface on the vehicle, and the power supply equipment 1 can be electrically connected with the on-board charger 8 in the vehicle body by inserting the power supply interface module 6 into the vehicle interface module 7.And in the embodiment, the switch controller 3 and the fourth switch 4 are added in the existing power supply equipment 1, one end of the fourth switch 4 is connected with the CC lead-out wire 5 in the power supply interface module 6, and the other end of the fourth switch 4 is connected with the PE wire 9 (grounded wire) in the power supply equipment 1.

[0025] The power supply control device 10 is arranged in the power supply equipment 1, the power supply control device 10 can be electrically connected with the second detection point 11 in the vehicle control device 2, the switch controller 3 and the fourth switch 4 are arranged in the power supply equipment 1, the switch controller 3 is used for controlling the fourth switch 4, and the fourth switch 4 is electrically connected with the vehicle control device 2 through the CC lead-out wire 5, wherein, through the arrangement of the switch controller 3, the fourth switch 4 and the CC lead-out wire 5, the CC signal on-off of simulating the charging gun head re-plugging once periodically can be realized, and then the vehicle control device 2 is activated, so that the vehicle can be automatically woken up.

[0026] The second detection point 11 in the embodiment is used for controlling the charging state of the vehicle, when the second detection point 11 is in the working state, the vehicle at this time is in the normal charging state, and when the second detection point 11 is in the non-working state, the vehicle at this time is in the dormant state.

[0027] Further, as a preferred embodiment, the power supply device 1 is provided with a first switch 12 (S1) and a first detection point 13, the power supply control device 10 is provided with a +12V wire 14, the first switch 12 is electrically connected with the +12V wire 14 and the first detection point 13, and the first detection point 13 is electrically connected with the second detection point 11. In this embodiment, the power supply control device 10 is further provided with a PWM terminal, and the first switch 12 is capable of switching between the +12V wire 14 and the PWM terminal.

[0028] Further, as a preferred embodiment, the vehicle control device 2 is provided with a second switch 15 (S2) in the circuit connected with the on-board charger 8. In this embodiment, the second detection point 11 in the vehicle control device 2 is used to control the second switch 15 to be opened or closed.

[0029] Further, as a preferred embodiment, the vehicle control device 2 is further provided with a third detection point 16, and the fourth switch 4 is electrically connected with the third detection point 16.

[0030] Further, as a preferred embodiment, the vehicle control device 2 is further provided with a third switch 17 (S3), and the third switch 17 is provided in the circuit in which the fourth switch 4 is connected with the third detection point 16. In this embodiment, a first resistor 18 and a second resistor 19 are provided in the circuit in which the fourth switch 4 is connected with the third detection point 16, the first resistor 18 is connected in parallel with the third switch 17, and the second resistor 19 is connected in series with the third switch 17, wherein the first resistor 18, the second resistor 19 and the third switch 17 are provided in the vehicle interface module 7.

[0031] Further, as a preferred embodiment, the vehicle control device 2 is further provided with an alternating current power supply circuit 20, and the alternating current power supply circuit 20 is electrically connected with the power supply device 1 and the on-board charger 8. As shown in Figure 1 Further, as a preferred embodiment, the vehicle control device 2 is further provided with an alternating current power supply circuit 20, and the alternating current power supply circuit 20 is electrically connected with the power supply device 1 and the on-board charger 8. As shown in

[0032] In use, when in the normal state without queuing for charging, after the power supply interface module 6 (the charging gun head) is docked with the vehicle interface module 7, the vehicle control device 2 judges whether the power supply interface module 6 and the vehicle interface module 7 are completely connected by measuring the resistance value between the third detection point 16 and the PE line 9, if in the semi-connected state, the third switch 17 is in the open state. If completely connected, the third switch 17 is in the closed state. After confirming that the power supply interface module 6 and the vehicle interface module 7 have been completely connected, the power supply device 1 switches the first switch 12 from the state of being connected with the +12V wire 14 to the state of being connected with the PWM end. After waiting for the vehicle-mounted charger 8 to complete the self-checking and the vehicle to be ready, the vehicle control device 2 controls the second switch 15 to be closed, and the power supply control device 10 judges that the voltage value of the first detection point 13 has reached 6V, then the power supply control device 10 makes the AC power supply loop 20 conductive by closing the contactors 21 (K1 and K2) to charge.

[0033] When the vehicle is in the dormant state, the second detection point 11 in the vehicle control device 2 may be in the inoperative state, so when the power supply device 1 (the charging pile of the power supply end) initiates a charging request, the first switch 12 is switched to the state of being connected with the PWM end, the vehicle control device 2 cannot detect the change state of the PWM end signal, and the vehicle end cannot be in the chargeable state. At this time, the second switch 15 will not be closed, and the two contactors 21 in the AC power supply loop 20 cannot close the power supply. In order to prevent the vehicle control device 2 from entering the inoperative state, it is necessary to simulate the CC on-off signal of the re-plugged gun, and then periodically activate the vehicle control device 2 to prevent the vehicle from entering the dormant state. After the vehicle is plugged in the charging gun head, the owner completes the order by scanning the code, and the station control program receives the order, judges that the order is in the queuing state, and the station control program will periodically send a wake-up signal to the charging parking space corresponding to the order. After the switch controller 3 receives the signal, the fourth switch 4 is controlled to perform an on-off action once, so as to simulate the CC signal on-off of the re-plugged charging gun head, and then activate the vehicle control device 2.

[0034] The above only describes the preferred embodiments of the present application, and does not limit the implementation and protection scope of the present application. For those skilled in the art, it should be realized that any equivalent replacement and obvious change made by applying the content of the present application description and drawings should be included in the protection scope of the present application.

Claims

1. A vehicle wake-up system suitable for AC charging of electric vehicles, characterized in that, It includes power supply equipment, vehicle control device, switch controller, fourth switch, CC lead wire, power supply interface module and vehicle interface module, wherein the power supply equipment is electrically connected to the power supply interface module, the power supply interface module is detachably connected to the vehicle interface module, the power supply interface module is electrically connected to the vehicle interface module, the vehicle interface module is electrically connected to the vehicle control device inside the vehicle body, and the vehicle control device is electrically connected to the on-board charger. The power supply equipment is equipped with a power supply control device, which can be electrically connected to the second detection point in the vehicle control device. The switch controller and the fourth switch are located in the power supply equipment. The switch controller is used to control the fourth switch, and the fourth switch is electrically connected to the vehicle control device through the CC lead.

2. The vehicle wake-up system for AC charging of electric vehicles as described in claim 1, characterized in that, The power supply equipment is equipped with a first switch and a first detection point. The power supply control device is equipped with a +12V wire. The first switch can be electrically connected to the +12V wire and the first detection point. The first detection point can be electrically connected to the second detection point.

3. The vehicle wake-up system for AC charging of electric vehicles as described in claim 1, characterized in that, A second switch is provided on the circuit connecting the vehicle control device and the on-board charger.

4. The vehicle wake-up system for AC charging of electric vehicles as described in claim 1, characterized in that, The vehicle control device also has a third detection point inside, and the fourth switch is electrically connected to the third detection point.

5. The vehicle wake-up system for AC charging of electric vehicles as described in claim 4, characterized in that, It also includes a third switch, and the circuit on which the fourth switch is connected to the third detection point is equipped with the third switch.

6. The vehicle wake-up system for AC charging of electric vehicles as described in claim 5, characterized in that, It also includes a first resistor and a second resistor, which are disposed on the circuit connecting the fourth switch and the third detection point. The first resistor is connected in parallel with the third switch, and the second resistor is connected in series with the third switch.

7. The vehicle wake-up system for AC charging of electric vehicles as described in claim 1, characterized in that, It also includes an AC power supply circuit, which is electrically connected to the power supply equipment and the on-board charger.

8. The vehicle wake-up system for AC charging of electric vehicles as described in claim 7, characterized in that, It also includes a contactor, which is provided in the power supply equipment and is located on the AC power supply circuit.

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