AC charging system for charging the vehicle's high-voltage battery

Abstract

The present invention relates to an alternating current (AC) charging system for charging a high voltage (HV) battery of a vehicle, the AC charging system comprising: a socket configured to connect a cable and to receive AC via the cable from a first external power source; and a coil configured to wirelessly receive AC from a second external power source, the AC charging system being configured to charge the HV battery in a first mode based on the AC received via the cable and to charge the HV battery in a second mode based on the AC received wirelessly via the coil, the AC charging system further comprising: a first unit comprising at least one first electrical component usable only for charging in the first mode and connected to the socket; a second unit comprising at least one second electrical component usable only for charging in the second mode and connected to the coil; and a third unit comprising at least one third electrical component usable for charging in the first mode and for charging in the second mode and connectable to the HV battery.

Description

FIELD OF THE INVENTION

[0001]

[0001] The present invention relates to a charging system configured for wired and wireless charging of battery electric vehicles.

[0002]

[0002] Batteries in electric vehicles can be charged using alternating current (AC) or direct current (DC) energy transfer. DC energy transfer is typically performed using high-power converters located at dedicated charging points. Although DC charging is typically faster than AC charging, DC charging points are typically located in remote areas and are not convenient for end users because DC charging point installation is expensive and they are not installed in or throughout residential areas because existing network capacity in residential areas is usually weak.

[0003]

[0003] On the other hand, AC charging is very important for residential areas and (semi-)public urban areas. A typical AC charger can provide a maximum charging power of 22 kW. AC charging systems can be divided into wired charging systems and wireless charging systems, and wireless charging systems are mainly embodied as inductive charging systems (ICS). Wired AC chargers are typically integrated into electric vehicles and are also called on-board chargers (OBCs). ICSs typically include two separate modules, often called a ground pad module (GPM) and a car pad module (CPM).

[0004]

[0004] The GPM is installed outside the electric vehicle, and the CPM is installed inside the electric vehicle, usually on the bottom side of the vehicle. Electromagnetic interaction between the GPM and CPM allows energy transfer from the GPM to the CPM, which is used to charge the electric vehicle's battery. Wireless charging systems are often more convenient for users because no manual intervention is typically required to start the battery charging process, other than parking the vehicle over the GPM. Wired charging systems, on the other hand, require the user to connect the electric vehicle to the power grid via a cable.

[0005]

[0005] OBCs are often standard components in BEVs and plug-in hybrid electric vehicles. Because wireless AC charging systems are more expensive than wired AC charging systems, wireless AC charging systems are typically only offered as optional features by vehicle manufacturers. When a CPM is to be incorporated into an electric vehicle for wireless charging, it is often a challenge for original equipment manufacturers to find the necessary space within the vehicle where the CPM can be installed, because the CPM is only an optional feature.

[0006]

[0006] Having both a wired and a wireless charging system in an electric vehicle further leads to (a) an increase in the mass of the vehicle and therefore increased energy consumption and costs for the user, and (b) low component utilization; while the battery is being charged using the wired charging system, the components in the wireless charging system are unused, and while the battery is being charged using the wireless charging system, the components of the wired charging system are unused.

[0007]

[0007] It is therefore an object of the present invention to provide an AC charging system having both wired and wireless charging capabilities, which avoids the above-mentioned drawbacks. Specifically, it is an object of the present invention to provide an AC charging system with both wired and wireless charging capabilities, which is cheaper, has a smaller mass, and requires less installation space than separately installed wired and wireless chargers, as known from the prior art.

[0008]

[0008] These objects are achieved by implementing the features of the independent claims. Features which further develop the invention in alternative or advantageous ways are set out in the dependent claims. Summary of the Invention

[0009]

[0009] The present invention relates to an alternating current (AC) charging system for charging a high-voltage (HV) battery of a vehicle, the AC charging system comprising: a socket configured to connect a cable and receive AC via the cable from a first external power source; and a coil configured to receive AC wirelessly from a second external power source, the AC charging system being configured to charge the HV battery in a first mode based on the AC received via the cable and to charge the HV battery in a second mode based on the AC received wirelessly via the coil, the AC charging system further comprising: a first unit connected to the socket and having at least one first electrical component usable only for charging in the first mode; a second unit connected to the coil and having at least one second electrical component usable only for charging in the second mode; and a third unit connectable to the HV battery and having at least one third electrical component usable for charging in the first mode and for charging in the second mode. In particular, the first external power source is an AC power grid and the second external power source is a wirelessly powered Ground Pad Module (GPM).

[0010] In some embodiments, the first unit comprises a first electromagnetic compatibility (EMC) filter configured to connect to the socket and receive AC from the socket.

[0011]

[0011] In some embodiments, the first unit includes a power factor correction circuit (PFC) configured to receive the AC filtered by the first EMC filter and convert the AC to direct current (DC), and an AC controller configured to control the PFC.

[0012] In some embodiments, the second unit comprises a tuning circuit configured to receive AC from the coil.

[0013] In some embodiments, the second unit comprises a rectifier configured to receive the AC tuned by the tuning circuit and convert the AC to DC.

[0014] In some embodiments, the second unit comprises a receiver configured to receive charging management data.

[0015] In some embodiments, the second unit comprises a sensor configured to determine sensor data related to a magnetic field detected at the coil.

[0016] In some embodiments, the third unit comprises a DC / DC converter configured to receive DC from the PFC and rectifier.

[0017]

[0017] In some embodiments, the third unit includes a second EMC filter configured to receive the DC converted by the DC / DC converter and filter the converted DC for supply to the HV battery.

[0018]

[0018] In some embodiments, the third unit includes a DC controller connected to the receiver, the sensor, the DC / DC converter, and the AC controller, and the DC controller is configured to control the DC / DC converter based on at least one of the charging management data, the sensor data, and the AC controller data received from the AC controller.

[0019] In some embodiments, the first unit, the second unit, and the third unit are contained by a single housing.

[0020]

[0020] In some embodiments, the first unit and the third unit are contained by a first housing and the second unit is contained by a second housing, and the AC charging system further comprises one of: (a) a cooling unit having a cooling plate having a first cooling plate surface and a second cooling plate surface, where the first cooling plate surface abuts the first housing and the second cooling plate surface abuts the second housing; and (b) a cooling unit having a first cooling plate and a second cooling plate, where the first cooling plate abuts the first housing and the second cooling plate abuts the second housing, and where the first cooling plate and the second cooling plate share a single coolant circuit.

[0021] In some embodiments, the cooling unit is a water-cooled cooling unit.

[0022] In some embodiments, the cooling unit is an air-cooled cooling unit.

[0023] In some embodiments, at least two of the first unit, the second unit, and the third unit are parts of a cooling system that is common to the at least two units.

[0024]

[0024] In some embodiments, the first housing includes a first cooling system for cooling the first housing, and the second housing includes a second cooling system for cooling the second housing.

[0025] In some embodiments, the first housing and the second housing include one cooling system common to the two housings.

[0026]

[0026] In some embodiments, the first unit, the second unit, and the rectifier from the third unit are contained by a first housing, and the third unit excluding the rectifier is contained by a second housing.

[0027] The present invention further relates to a module for an alternating current (AC) charging system for charging a high voltage (HV) battery of a vehicle, the module comprising: a first electromagnetic compatibility (EMC) filter configured to receive AC from the socket; a power factor correction (PFC) circuit configured to receive the AC filtered by the first EMC filter and convert the AC to direct current (DC); an AC controller configured to control the PFC; a first interface; a DC / DC converter configured to receive DC from the PFC and the first interface; a second interface; receiving sensor data and charge management data from the second interface and receiving AC controller data from the AC controller; controlling the DC / DC converter based on at least one of the charge management data, the sensor data, and the AC controller data; a DC controller configured to: a second EMC filter configured to receive the DC converted by the DC / DC converter; a third interface configured to receive the second EMC filtered DC for supplying the HV battery; In other words, that is, utilizing the above description, this subject matter can also be defined in that the first unit and the third unit form a first module comprising and surrounded by a first housing. In this case, as a separate subject matter, the second unit forms a second module comprising and surrounded by a second housing.

[0028] The present invention further relates to a module for an alternating current (AC) charging system for charging a high voltage (HV) battery of a vehicle, the module comprising: a tuned circuit configured to receive AC from the coil; a rectifier configured to receive AC tuned by the tuning circuit; a receiver configured to receive charging management data; a sensor configured to determine sensor data related to a magnetic field detected at the coil; a first interface; a direct current to direct current (DC / DC) converter configured to receive DC from the rectifier and the first interface; a second interface; receiving sensor data and charge management data; receiving AC controller data from the second interface; controlling the DC / DC converter based on at least one of the charge management data, the sensor data, and the AC controller data; a DC controller configured to: an electromagnetic compatibility (EMC) filter configured to receive the DC converted by the DC / DC converter; a third interface configured to receive EMC filtered DC for supplying the HV battery; In other words, that is, utilizing the above description, this subject matter can also be defined in that the second unit and the third unit form a first module that includes and is surrounded by a first housing. In this case, as a separate subject matter, the first unit forms a second module that includes and is surrounded by a second housing.

[0029]

[0029] In further remarks, the preferred embodiment provides common electrical components, such as a DC / DC converter stage and an EMC filter stage, that can be used by both the wired and wireless charging modes. The use of such shared parts enables the construction of an AC charging system with both wired and wireless charging functions, with a reduced component count compared to state-of-the-art solutions, because some components are jointly utilized by both the wired and wireless charging functions. Specifically, the DC / DC functions are integrated into a single isolated DC / DC converter.

[0030]

[0030] In particular, the first unit is configured to convert an AC system voltage obtained from the power system into an unregulated fixed DC voltage. The high-frequency AC voltage obtained via the second unit after the tuning circuit stage is also rectified into a fixed DC voltage, in particular. The first unit and the second unit may be electrically connected to a DC link capacitor, which may be arranged in a third unit electrically upstream of the joint DC / DC converter stage. Either the first unit or the second unit may feed the joint DC / DC converter of the third unit. In particular, the DC / DC converter is configured to regulate the voltage and charge the battery to a desired voltage level.

[0031] In other words, the AC charging system according to the present invention can be described as comprising a car pad module (CPM) and an on-board charger (OBC), with these two modules sharing some electrical components. Preferably, the CPM comprises at least a coil, but may further comprise (a) the second unit, or (b) the second and third units, or (c) the first, second, and third units, or (d) only the tuning circuit of the second unit. A controller for the CPM may be incorporated into the third unit, allowing for further flexibility and cost reduction. This controller is referred to herein as a "DC controller" because its primary purpose is to control the DC / DC converter. This implies that the DC controller may be within the CPM or external to the CPM, i.e., for example, within the OBC. Optional sensors within the CPM, i.e., preferably the second unit, may provide position information used to inform the DC controller regarding, for example, whether the electric vehicle is properly positioned, i.e., whether the coils in the CPM and ground pad module (GPM) are properly aligned. In the case of proper alignment, the DC control unit can automatically initiate wireless charging of the high-voltage battery. Alternatively, charging can be initiated by a human operator, for example, by wirelessly communicating with the DC control unit. For this purpose, the CPM, particularly the second unit, can be equipped with a receiver, for example, using wireless communication technology such as WiFi or Bluetooth. Both the sensor and the receiver are each connected to a DC controller. The DC controller may be located in the second unit or the third unit, or may nevertheless be located in the CPM or the OBC. [Brief explanation of the drawings]

[0032]

[0032] The system of the invention will now be described in more detail, purely by way of example, using specific exemplary embodiments shown diagrammatically in the drawings, in which identical elements are provided with the same reference numerals, and further advantages of the invention will be considered.

[0033] [Figure 1] FIG. 1 is a diagram showing a schematic depiction of a wired charging system according to the prior art.

[0034] [Figure 2]

[0034] FIG. 2 is a diagram showing a schematic representation of a wireless charging system according to the prior art.

[0035] [Figure 3] FIG. 3 is a diagram showing a schematic depiction of one embodiment of the present invention.

[0036] [Figure 4] FIG. 4 is a diagram showing a schematic depiction of one embodiment of the present invention. [Figure 5] FIG. 5 is a diagram showing a schematic depiction of one embodiment of the present invention. [Figure 6] FIG. 6 is a diagram showing a schematic depiction of one embodiment of the present invention. [Figure 7] FIG. 7 is a diagram showing a schematic depiction of one embodiment of the present invention. [Figure 8] FIG. 8 is a diagram showing a schematic depiction of one embodiment of the present invention. [Figure 9] FIG. 9 is a diagram showing a schematic depiction of one embodiment of the present invention. Detailed Description of the Drawings

[0037]

[0037] Figure 1 shows a schematic diagram of a state-of-the-art wired charging system 1. The wired charging system 1 is configured to charge a high voltage (HV) battery 2 by drawing power from an alternating current (AC) power grid 3 to which the system 1 is connected via a cable 4 plugged into a socket 5. The wired charging system 1, sometimes called an on-board charger (OBC), can be located directly inside a vehicle, which also comprises an HV battery 2.

[0038] The exemplary wired charging system 1 includes a first electromagnetic compatibility (EMC) filter stage 6 configured to reduce the transmission of electromagnetic noise from, for example, a power grid 3 to the remaining components of the wired charging system 1, and a power factor correction (PFC) stage 7 that outputs a fixed direct current (DC) voltage and ensures a power factor of 1. A subsequent capacitor 8 may be used to smooth the output provided by the PFC stage 7. The wired charging system 1 further includes an isolated DC / DC converter 9 that regulates the voltage to charge the HV battery 2 and provides galvanic isolation. A second EMC filter stage 10 follows the isolated DC / DC converter, and the second EMC filter stage is connectable to the HV battery 2.

[0039]

[0039] The controller 11 is also part of the wired charging system 1 and can be used to control the operation of the PFC stage 7 and the isolated DC / DC converter 9, for example by selecting the voltage of the output provided by the isolated DC / DC converter.

[0040] 2 shows a schematic diagram of a state-of-the-art wireless charging system 12, also called a car pad module (CPM), which can be placed in a vehicle with an HV battery 13. The CPM 12 receives power wirelessly, for example by induction using a coil 14, from a corresponding coil 15 contained by an external module (GPM), also called a ground pad module (GPM). Using a tuning circuit stage 16, the wireless charging system 12 can be tuned to a specific frequency, for example by connecting a capacitance to the coil.

[0041] The wirelessly received electrical signal, which is an AC signal, is then rectified in a rectification stage 17 to provide a DC signal. The DC signal provided by the rectification is then converted and boosted to a voltage having a specified power level by a DC / DC converter 18, which may be embodied as, for example, a buck-boost converter. The DC / DC converter output is provided to an EMC filter 19, and the output of the EMC filter is used to charge the HV battery 13. The CPM 12 includes a DC controller 20, which controls the charging process of the HV battery 3. The DC controller 20 is configured to receive charge management data and control the DC / DC converter 18 based on the received charge management data. The charge management data may be provided by a wireless receiver 21, and / or the DC controller 20 may receive position information provided by a sensor 22, for example, specifying the relative position between the coil 14 of the CPM 12 and the corresponding coil 15 in the GPM, the two coils being used to wirelessly transfer power between the CPMs.

[0042]

[0042] Figure 3 shows a schematic diagram of one embodiment of the present invention. It is readily apparent that the amount of components used in this AC charging system 23 is less than the combined amount of components used in both the OBC 1 (Figure 1) and the CPM 12 (Figure 2).

[0043] The AC charging system 23 can charge the HV battery 24 with power either via a cable 25 connecting the utility grid 26 with a socket 27 or wirelessly via a GPM 28. Because both charging modes require similar or identical components, the present invention provides an integrated solution for both charging modes. See FIGS. 1 and 2 for the function and purpose of the single components in the first unit (OBC-specific) 29 and the second unit (CPM-specific) 30. Here, the third unit (OBC / CPM common) 31 is a conceptual division with components used in both wire-based charging (first mode) and wireless charging (second mode).

[0044]

[0044] The DC / DC converter 32 is configured to convert the direct current generated from the power received via the socket 27 and to convert the direct current generated from the power received via the coil 33. The DC / DC converter 32 is controlled using a DC controller 34 to which inputs from an AC controller 35, a sensor 36 and a receiver 37 are provided. From a structural point of view, the DC controller 34 may be "located" in the second unit 30, but in this case a direct interface between the OBC 29 and the CPM 30 is required. As shown, each of the OBC 29 and the CPM 30 may only have an interface with the second unit 31, which interfaces with the HV battery 24.

[0045] 4-9 show examples of how the present invention can be utilized.

[0046] FIG. 4 shows a first unit 38 and a third unit 39 described herein, which form a first module and are enclosed by a first housing 40. A second module (not shown) configured to cooperate with the first module may form a separate subject and comprise the second unit described herein. In that case, such a second module may be located under the vehicle together with a coil used to receive AC power supplied by a GPM on the floor in one housing. The second module then converts AC power to DC power and supplies the DC power to the first module 40 via a wired connection. The first module has interfaces for DC power, sensor data from a sensor (see reference number 36 in FIG. 3), and charge management data from a receiver (see reference number 37 in FIG. 3). The first housing 40 may include a socket or be connectable to a socket. An exemplary location for such a first housing 40 may be near a vehicle socket or near the HV battery.

[0047]

[0047] In a fundamentally different embodiment, FIG. 5 shows a second unit 41 and a third unit 42 described herein, which form a first module and are enclosed by a first housing 43. A second module (not shown) configured to cooperate with the first module forms a separate subject and may comprise the first unit described herein. In that case, such a second module may be located near a vehicle socket used to receive AC power supplied by a cable connected to the power grid. The second module then converts AC power to DC power and supplies the DC power to the first module 43 via a wired connection, with the first module having respective interfaces for DC power and for AC control data from the AC controller (see reference numeral 35 in FIG. 3). The first housing 43 may include a coil or be connectable to a coil. Exemplary locations for such a first housing 43 include underneath the vehicle adjacent to or combined with the coil, or detached from the coil and located in another suitable location within the vehicle.

[0048] 6 shows the first unit 44, second unit 45, and third unit 46 described herein contained by a single housing 47. Such a single housing 47 may comprise or be connected to (in each case) (a) the coil and (b) the socket. Thus, possible locations for the single housing 47 may be close to the coil (under the vehicle) or close to the socket. However, both power interfaces (a) and (b) may simply be connected to the single housing 47 via extension wires, and thus may also be located in any suitable location within the vehicle.

[0049]

[0049] FIG. Contained by a first housing / module 51, The first unit 48 and the third unit 49 described herein, as well as To (1 shows a rectifier 50 (previously described as belonging to the second unit), while the remainder of the second unit 52 described herein is outsourced in a second housing / module 53. The two modules are connected by respective cables / interfaces 54. For example, such a first housing 51 may be located near the socket, and such a second housing 53 may be located near or combined with the coil, i.e., under the vehicle. Again, the first housing 51 may comprise or be connected to the socket, and the second housing 53 may comprise or be connected to the coil.

[0050]

[0050] Figure 8 shows a first unit 55 and a third unit 56 as described herein, contained by a first housing 57 and a second unit 58 as described herein, encased in a second housing 59 attached to the first housing 57 via a cooling plate 60 configured to cool the two housings using their respective cooling plate surfaces. All necessary connections are provided by an interface 61. Such a housing / cooling combination (57 + 60 + 59 = 62) may comprise or be connected to (in each case) (a) a coil and (b) a socket. Possible locations for the combination 61 may therefore be close to the coil (under the vehicle) or close to the socket. However, both power interfaces (a) and (b) may simply be connected to the combination 62 via extension wires, and therefore may also be located in any suitable location within the vehicle.

[0051] FIG. 9 shows a similar configuration to that of FIG. 8, except that the housings / modules are not adjacent to each other and occupy different positions within the vehicle, but still share a single coolant circuit including a first cooling plate (not shown) for a first module 65 and a second cooling plate (not shown) for a second module 67. The first module 65 houses a first unit 63 described herein and a third unit 64 described herein. The second module 67 houses a second unit 66 described herein. The coolant for cooling the two cooling plates circulates between both modules 65 and 67 by flowing through respective cooling channels or hoses 68. Wires 69 ensure electrical and data connections between the modules 65 and 67. Again, the first housing 65 may include or be connected to a socket, and the second housing 67 may include or be connected to a coil.

[0052]

[0052] While the present invention has been illustrated above in part with reference to certain preferred embodiments, it will be understood that numerous modifications and combinations of the various features of the embodiments can be made, all of which fall within the scope of the appended claims. [Item of invention] [Item 1] 1. An alternating current (AC) charging system for charging a high voltage (HV) battery of a vehicle, comprising: The AC charging system a socket configured to connect to a cable and receive AC power from a first external power source via the cable; a coil configured to wirelessly receive AC from a second external power source; Equipped with The AC charging system charging the HV battery in a first mode based on the alternating current received via the cable; charging the HV battery in a second mode based on the alternating current received wirelessly via the coil; and configured to: The AC charging system a first unit connected to the socket, the first unit including at least one first electrical component usable only for charging in the first mode; a second unit connected to the coil, the second unit including at least one second electrical component usable only for charging in the second mode; a third unit connectable to the HV battery, the third unit including at least one third electrical component usable for charging in the first mode and for charging in the second mode; and It also features an AC charging system. [Item 2] Item 1. The AC charging system of item 1, wherein the first unit comprises a first electromagnetic compatibility (EMC) filter connected to the socket and configured to receive the AC from the socket. [Item 3] The first unit comprises: a power factor correction (PFC) circuit configured to receive the AC filtered by the first EMC filter and convert the AC to direct current (DC); an AC controller configured to control the PFC; Item 3. The AC charging system of item 2, comprising: [Item 4] 4. The AC charging system of any one of items 1 to 3, wherein the second unit includes a tuning circuit configured to receive the AC from the coil. [Item 5] Item 5. The AC charging system of item 4, wherein the second unit includes a rectifier configured to receive the AC tuned by the tuning circuit and convert the AC to DC. [Item 6] 6. The AC charging system of any one of items 1 to 5, wherein the second unit comprises a receiver configured to receive charging management data. [Item 7] 7. The AC charging system of any one of items 1 to 6, wherein the second unit comprises a sensor configured to determine sensor data related to a magnetic field detected at the coil. [Item 8] 6. The AC charging system of at least items 2 and 5, wherein the third unit comprises a DC / DC converter configured to receive DC from the PFC and the rectifier. [Item 9] 9. The AC charging system of at least item 8, wherein the third unit comprises a second EMC filter configured to receive the DC converted by the DC / DC converter and filter the converted DC for supplying to the HV battery. [Item 10] 9. The AC charging system of at least items 3, 6, 7, and 8, wherein the third unit comprises a DC controller connected to the receiver, the sensor, the DC / DC converter, and the AC controller, and the DC controller is configured to control the DC / DC converter based on at least one of the charging management data, the sensor data, and AC controller data received from the AC controller. [Item 11] 11. The AC charging system of any one of items 1 to 10, wherein the first unit, the second unit, and the third unit are contained by a single housing. [Item 12] the first unit and the third unit are contained by a first housing, the second unit is contained by a second housing, and the AC charging system is a cooling unit including a cooling plate having a first cooling plate surface and a second cooling plate surface, the first cooling plate surface abutting the first housing and the second cooling plate surface abutting the second housing; a cooling unit including a first cooling plate and a second cooling plate, the first cooling plate abutting the first housing and the second cooling plate abutting the second housing, and the first cooling plate and the second cooling plate sharing a single coolant circuit; 11. The AC charging system according to any one of items 1 to 10, further comprising one of the following: [Item 13] The AC charging system according to item 5, or item 5 and any one of items 1 to 4 and 6 to 10, wherein the first unit, the second unit, and the rectifier from the third unit are contained in a first housing, and the third unit excluding the rectifier is contained in a second housing. [Item 14] 1. A module for an alternating current (AC) charging system for charging a high voltage (HV) battery of a vehicle, comprising: The module: a first electromagnetic compatibility (EMC) filter configured to receive the AC from the socket; a power factor correction (PFC) circuit configured to receive the AC filtered by the first EMC filter and convert the AC to direct current (DC); an AC controller configured to control the PFC; a first interface; a DC / DC converter configured to receive DC from the PFC and the first interface; a second interface; It is a DC controller, receiving sensor data and charge management data from the second interface; receiving AC controller data from the AC controller; controlling the DC / DC converter based on at least one of the charge management data, the sensor data, and the AC controller data; a DC controller configured to: a second EMC filter configured to receive the DC converted by the DC / DC converter; and a third interface configured to receive the DC filtered by the second EMC for supplying to the HV battery; A module comprising: [Item 15] 1. A module for an alternating current (AC) charging system for charging a high voltage (HV) battery of a vehicle, comprising: The module: a tuned circuit configured to receive AC from the coil; a rectifier configured to receive the AC tuned by the tuning circuit; a receiver configured to receive charging management data; a sensor configured to determine sensor data related to a magnetic field detected at the coil; a first interface; a direct current / direct current (DC / DC) converter configured to receive DC from the rectifier and the first interface; a second interface; It is a DC controller, receiving the sensor data and the charging management data; receiving AC controller data from the second interface; controlling the DC / DC converter based on at least one of the charge management data, the sensor data, and the AC controller data; a DC controller configured to: an electromagnetic compatibility (EMC) filter configured to receive the DC converted by the DC / DC converter; a third interface configured to receive the EMC-filtered DC for supplying to the HV battery; A module comprising:

Claims

1. 1. An alternating current (AC) charging system for charging a high voltage (HV) battery of a vehicle, comprising: The AC charging system a socket configured to connect to a cable and receive AC power from a first external power source via said cable; a coil configured to wirelessly receive AC from a second external power source; and Equipped with The AC charging system charging the HV battery in a first mode based on the alternating current received via the cable; charging the HV battery in a second mode based on the alternating current wirelessly received through the coil; and configured to: The AC charging system a first unit connected to the socket, the first unit comprising at least one first electrical component usable only for charging in the first mode; a second unit connected to the coil, the second unit comprising: a tuned circuit configured to receive AC from the coil; a rectifier configured to convert the AC received from the tuned circuit to DC; and at least one second electrical component usable only for charging in the second mode; a third unit connectable to the HV battery, the third unit including at least one third electrical component usable for charging in the first mode and for charging in the second mode; and Furthermore, the first unit, the third unit, and the rectifier form a first module contained by a first housing; the second unit, excluding the rectifier, forms a second module contained by a second housing; An AC charging system, wherein the second module is connected to the rectifier and the third unit by cables, respectively.

2. 2. The AC charging system of claim 1, wherein the first unit comprises a first electromagnetic compatibility (EMC) filter connected to the socket and configured to receive the AC from the socket.

3. The first unit comprises: a power factor correction circuit (PFC) configured to receive the AC filtered by the first EMC filter and convert the AC to direct current (DC); an AC controller configured to control the PFC; 3. The AC charging system of claim 2, comprising:

4. The AC charging system of claim 3 , wherein the second unit comprises a receiver configured to receive charging management data.

5. 5. The AC charging system of claim 4, wherein the second unit comprises a sensor configured to determine sensor data related to a magnetic field detected at the coil.

6. 6. The AC charging system of claim 5, wherein the third unit comprises a DC / DC converter configured to receive DC from the PFC and the rectifier.

7. 7. The AC charging system of claim 6, wherein the third unit comprises a second EMC filter configured to receive the DC converted by the DC / DC converter and filter the converted DC for supply to the HV battery.

8. 8. The AC charging system of claim 7, wherein the third unit comprises a DC controller connected to the receiver, the sensor, the DC / DC converter, and the AC controller, the DC controller configured to control the DC / DC converter based on at least one of the charging management data, the sensor data, and AC controller data received from the AC controller.

9. the first unit and the third unit are contained by a first housing, the second unit is contained by a second housing, and the AC charging system comprises: a cooling unit including a cooling plate having a first cooling plate surface and a second cooling plate surface, the first cooling plate surface abutting the first housing and the second cooling plate surface abutting the second housing; a cooling unit including a first cooling plate and a second cooling plate, the first cooling plate abutting the first housing and the second cooling plate abutting the second housing, the first cooling plate and the second cooling plate sharing a single coolant circuit; The AC charging system of any one of claims 1 to 8, further comprising one of:

10. The first module: a first electromagnetic compatibility (EMC) filter configured to receive the AC from the socket; a power factor correction circuit (PFC) configured to receive the AC filtered by the first EMC filter and convert the AC to direct current (DC); an AC controller configured to control the PFC; a first interface; a DC / DC converter configured to receive DC from the PFC and the first interface; a second interface; and a DC controller, receiving sensor data and charge management data from the second interface; receiving AC controller data from the AC controller; controlling the DC / DC converter based on at least one of the charge management data, the sensor data, and the AC controller data; a DC controller configured to: a second EMC filter configured to receive the DC converted by the DC / DC converter; and a third interface configured to receive DC filtered by the second EMC filter for supplying the HV battery; and 10. The AC charging system of claim 1, comprising:

11. The second module: the tuned circuit configured to receive AC from the coil; the rectifier configured to receive AC tuned by the tuning circuit; a receiver configured to receive charging management data; a sensor configured to determine sensor data related to a magnetic field detected at the coil; a first interface; a direct current to direct current (DC / DC) converter configured to receive DC from the rectifier and the first interface; a second interface; and a DC controller, receiving the sensor data and the charging management data; receiving AC controller data from the second interface; controlling the DC / DC converter based on at least one of the charge management data, the sensor data, and the AC controller data; a DC controller configured to: an electromagnetic compatibility (EMC) filter configured to receive the DC converted by the DC / DC converter; a third interface configured to receive DC filtered by the EMC filter for supplying the HV battery; and 10. The AC charging system of claim 1, comprising:

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