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CN110723006A - Electrical system, method for providing charging by battery, electric and hybrid motor vehicle - Google Patents

Electrical system, method for providing charging by battery, electric and hybrid motor vehicle Download PDF

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Publication number
CN110723006A
CN110723006A CN201910568171.7A CN201910568171A CN110723006A CN 110723006 A CN110723006 A CN 110723006A CN 201910568171 A CN201910568171 A CN 201910568171A CN 110723006 A CN110723006 A CN 110723006A
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connection interface
power factor
correction circuit
factor correction
pfc
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Chinese (zh)
Inventor
杨刚
颜毅
曾思雄
施三宝
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Valeo eAutomotive France SAS
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Valeo Siemens eAutomotive France SAS
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B60L53/22—Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/66—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal
    • H02M7/68—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters
    • H02M7/72—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/79—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/797—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

本公开提供一种用于机动车辆的电气系统、一种用于使用电池来提供充电的方法、一种电动机动车辆和一种混合机动车辆。所述电气系统包括负责供电高电压供电电池(HV)的电气充电器(OBC‑1)，所述电气充电器(OBC‑1)包括功率因数校正电路(PFC)和直流对直流转换器(DC/DC)，功率因数校正电路包括第一连接接口(B1)和第二连接接口(B2)，直流对直流转换器包括第一连接接口(B3)和第二连接接口(B4)，其中电气充电器(OBC‑1)包括两个操作模式：“直接”模式，其中外部电气供电网络(G1)供电高电压电池(HV)；“反向”模式，其中高电压电池(HV)提供充电，其中电气系统包括直流对直流转换器(DC/DC)的短路电路。

Figure 201910568171

The present disclosure provides an electrical system for a motor vehicle, a method for providing charging using a battery, an electric motor vehicle, and a hybrid motor vehicle. The electrical system includes an electrical charger (OBC-1) responsible for supplying a high-voltage supply battery (HV), the electrical charger (OBC-1) including a power factor correction circuit (PFC) and a DC-to-DC converter (DC) /DC), the power factor correction circuit includes a first connection interface (B1) and a second connection interface (B2), and the DC-to-DC converter includes a first connection interface (B3) and a second connection interface (B4), wherein the electrical charging The converter (OBC‑1) includes two operating modes: “direct” mode, in which the external electrical supply network (G1) supplies the high-voltage battery (HV); “reverse” mode, in which the high-voltage battery (HV) provides charging, in which The electrical system includes a short circuit for a direct current to direct current converter (DC/DC).

Figure 201910568171

Description

电气系统、用电池提供充电的方法、电动和混合机动车辆Electrical systems, methods of providing charging with batteries, electric and hybrid motor vehicles

技术领域technical field

一般来说，本发明涉及一种电气系统、用电池提供充电的方法、电动和混合机动车辆，所述电气系统配置成尤其调适成在机动车辆(尤其电动或混合机动车辆)上为电池充电。In general, the present invention relates to an electrical system, a method of providing charging with a battery, an electric and hybrid motor vehicle, the electrical system being configured to be particularly adapted to charge a battery on a motor vehicle, especially an electric or hybrid motor vehicle.

更精确地，电动或混合车辆包括为车辆的电气设备供电的低电压供电电池和参与推进车辆的高电压供电电池。已知的是车辆包含目前以“车载充电器(On Board Charger)”的缩略词OBC指示的用于为高电压供电电池和最终低电压供电电池充电的车载充电器，以及交流-直流电转换器用于转换交流电压源与所述供电电池组之间的电压。在这种背景下，本发明涉及一种电气系统，所述电气系统呈现由车载充电器和由交流-直流转换器提供的若干功能。More precisely, an electric or hybrid vehicle includes a low-voltage power supply battery that powers the vehicle's electrical equipment and a high-voltage power supply battery that participates in propulsion of the vehicle. It is known that a vehicle contains an onboard charger, currently designated by the acronym OBC "On Board Charger", for charging high voltage supply batteries and ultimately low voltage supply batteries, as well as for AC-DC converters. for converting the voltage between the AC voltage source and the power supply battery pack. In this context, the present invention relates to an electrical system that exhibits several functions provided by an on-board charger and by an AC-DC converter.

背景技术Background technique

众所周知，电动或混合车辆包括经由车载高电压电气网络由高电压供电电池供电的电动机系统，和经由车载低电压电气网络由低电压供电电池供电的多个辅助电气设备。因此，高电压供电电池确保电动机系统的能量供应以推进车辆。低电压供电电池供电辅助电气设备，例如车载计算机、车窗电机、多媒体系统等。高电压供电电池通常输送100伏与900伏之间、较佳为100伏与500伏之间的电压，然而低电压供电电池通常输送约12伏、24伏或48伏的电压。这两种高电压供电电池组和低电压供电电池组必须能够经充电。As is known, electric or hybrid vehicles include an electric motor system powered by a high voltage supply battery via an onboard high voltage electrical network, and a number of auxiliary electrical devices powered by a low voltage supply battery via an onboard low voltage electrical network. Therefore, the high-voltage power supply battery ensures the energy supply of the electric motor system to propel the vehicle. Low-voltage power supply battery-powered auxiliary electrical equipment, such as on-board computers, window motors, multimedia systems, etc. High voltage powered batteries typically deliver between 100 volts and 900 volts, preferably between 100 volts and 500 volts, whereas low voltage powered batteries typically deliver about 12 volts, 24 volts or 48 volts. Both the high voltage powered battery pack and the low voltage powered battery pack must be capable of being charged.

高电压供电电池的电能充电以经由车辆高电压电气网络将其连接到例如交流电家用供电网络的外部电气供电网络的已知方式来实现。为这一目的，高电压供电电池能够经由指定为车载充电器的车载电气充电系统连接到外部电气供应，所述车载充电器通常包括整流电路和功率因数校正电路。The electrical charging of the high-voltage supply battery is achieved in a known manner by connecting it to an external electrical supply network, eg an alternating current household supply network, via the vehicle high-voltage electrical network. For this purpose, the high voltage supply battery can be connected to an external electrical supply via an on-board electrical charging system designated as an on-board charger, which typically includes a rectifier circuit and a power factor correction circuit.

图1示出现有技术水平的单向(unidirectional)车载电气充电器OBC-10的功能框图，所述单向车载电气充电器负责供电高电压供电电池HV，通常专用于推进电动或混合车辆。所示的车载电气充电器OBC-10包括电磁滤波电路(electromagnetic filteringcircuit)EMC(任选的)和双向功率因数校正电路(two-directional power factorcorrection circuit)PFC，所述功率因数校正电路PFC包括交流-直流转换器(alternating-direct converter)，其接收来自例如交流电家用供电网络的外部交流电供应G1的电流。Figure 1 shows a functional block diagram of a state-of-the-art unidirectional on-board electrical charger OBC-10 responsible for powering a high-voltage supply battery HV, typically dedicated to propulsion of electric or hybrid vehicles. The on-board electrical charger OBC-10 shown includes an electromagnetic filtering circuit EMC (optional) and a two-directional power factor correction circuit PFC comprising an AC- An alternating-direct converter, which receives current from an external alternating current supply G1, eg an alternating current household supply network.

预充电模块PC10可防止高涌入电流在系统接通时穿过功率因数校正电路PFC的交流-直流转换器电路。换句话说，预充电模块PC10可防止在接通某些电气接收器时所产生的瞬时过电压，且因此避免尤其在链路电容器(link capacitor)Clink中充电过快和过高的增大。对应于指定为“直接模式(direct mode)”的车载电气充电器操作模式OBC-10，预充电模块PC10仅在为HV供电电池充电时激活。The pre-charging module PC10 prevents high inrush currents from passing through the AC-DC converter circuit of the power factor correction circuit PFC when the system is switched on. In other words, the pre-charging module PC10 can prevent transient overvoltages that occur when certain electrical receivers are switched on, and thus avoid overcharging and overcharging especially in the link capacitor Clink. Corresponding to the on-board electrical charger operating mode OBC-10 designated as "direct mode", the pre-charging module PC10 is only active when charging the HV supply battery.

仍参考图1，功率因数校正电路PFC具有消除由经系统吸收的电流引起的外部电气供电网络G1的变形以便防止出现谐波电流(harmonic current)的主要功能，所述谐波电流损害外部电气供电网络。Still referring to FIG. 1 , the power factor correction circuit PFC has the main function of eliminating the deformation of the external electrical supply network G1 caused by the current drawn through the system in order to prevent the occurrence of harmonic currents that damage the external electrical supply network.

最后，低电压供电电池的充电(图1中未示出)以已知方式经由连接在HV供电电池与低电压供电电池之间的第二DC-DC转换器(图中未示出)由高电压供电电池HV进行。Finally, the charging of the low voltage supply battery (not shown in Figure 1) is carried out in a known manner via a second DC-DC converter (not shown in the figure) connected between the HV supply battery and the low voltage supply battery from high Voltage powered battery HV is carried out.

因此，高电压供电电池HV的充电借助于车辆中的车载电气充电器OBC-10进行。然而，由于单向DC-DC转换器DC/DC10，车载电气充电器OBC-10仅能够为高电压供电电池HV充电，但无法反向，即不可能使用充电的高电压供电电池HV来提供充电。Therefore, the charging of the high-voltage supply battery HV is carried out by means of the on-board electrical charger OBC-10 in the vehicle. However, due to the unidirectional DC-DC converter DC/DC10, the on-board electrical charger OBC-10 is only capable of charging the high-voltage supply battery HV, but not the reverse, i.e. it is not possible to use the charged high-voltage supply battery HV to provide charging .

可获得车载双向电气充电器OBC-10的一种解决方案为用另一双向DC-DC转换器替换单向DC-DC转换器DC/DC10。然而，双向DC-DC转换器比单向DC-DC转换器更加昂贵。另外，这种解决方案为繁琐的，这是因为其无法如上文所呈现通过添加低成本组件来轻易地修改车载电气充电器OBC-10，而是需要替换已存在于这一车载电气充电器OBC-10中的组件，从而产生实质额外成本。One solution to obtain the on-board bidirectional electrical charger OBC-10 is to replace the unidirectional DC-DC converter DC/DC10 with another bidirectional DC-DC converter. However, bidirectional DC-DC converters are more expensive than unidirectional DC-DC converters. In addition, this solution is cumbersome because it cannot easily modify the on-board electrical charger OBC-10 by adding low cost components as presented above, but requires replacing the on-board electrical charger OBC already present -10 components, resulting in substantial additional cost.

为了克服这些劣势，本发明提出使用能够在两个不同模式中操作的电气充电器，所述两个不同模式即：“直接模式”，其对应于为高电压供电电池HV充电；以及“反向模式”，其中电气充电器使用所述高电压供电电池HV进行供应充电的功能。In order to overcome these disadvantages, the present invention proposes to use an electrical charger capable of operating in two different modes, namely: "direct mode", which corresponds to charging the high voltage supply battery HV; and "reverse mode" mode", in which the electrical charger uses the high voltage supply battery HV for the function of supply charging.

发明内容SUMMARY OF THE INVENTION

更精确地，本发明涉及一种尤其用于机动车辆的电气系统，包括电气充电器，其配置成供电尤其配置成提供能量以驱动车辆的供电电池，所述电气充电器包括功率因数校正电路和DC-DC转换器，所述功率因数校正电路包括第一连接接口(interface)和第二连接接口，所述DC-DC转换器包括第一连接接口和第二连接接口。More precisely, the invention relates to an electrical system, in particular for a motor vehicle, comprising an electrical charger configured to supply a power supply battery, especially configured to supply energy to drive the vehicle, the electrical charger comprising a power factor correction circuit and The DC-DC converter, the power factor correction circuit includes a first connection interface and a second connection interface, and the DC-DC converter includes a first connection interface and a second connection interface.

出于这一目的，电气系统的电气充电器的显著之处在于其配置成具有两个操作模式：For this purpose, the electrical charger of the electrical system is distinguished in that it is configured to have two modes of operation:

-“直接”操作模式，其中外部电气供电网络(external electrical supplynetwork)通过功率因数校正电路的中介(intermediary)和DC-DC转换器的中介供电电池，功率因数校正电路的第二连接接口连接到DC-DC转换器的第一连接接口，在直接模式中，所述第二连接接口对应于功率因数校正电路的输出接口，- a "direct" mode of operation, in which the external electrical supply network supplies the battery through the intermediary of the power factor correction circuit and the intermediary of the DC-DC converter, the second connection interface of the power factor correction circuit being connected to DC - the first connection interface of the DC converter, in the direct mode, the second connection interface corresponds to the output interface of the power factor correction circuit,

-“反向”操作模式，其中电池通过功率因数校正电路的中介来提供充电(charge)，- a "reverse" mode of operation in which the battery provides charge through the intermediary of a power factor correction circuit,

电气系统包括DC-DC转换器的短路电路(short-circuit circuit)，所述短路电路包括可使DC-DC转换器的第二连接接口直接连接到功率因数校正电路的第二连接接口的至少一个开关，在反向操作模式中，功率因数校正电路的第二连接接口对应于功率因数校正电路的输入接口。The electrical system includes a short-circuit circuit of the DC-DC converter, the short-circuit circuit including at least one that enables a second connection interface of the DC-DC converter to be directly connected to a second connection interface of the power factor correction circuit The switch, in the reverse mode of operation, the second connection interface of the power factor correction circuit corresponds to the input interface of the power factor correction circuit.

根据本发明的一方面，电气系统的电气充电器包括预充电模块(pre-chargemodule)，所述预充电模块的第一连接接口通过开关的中介连接到功率因数校正电路的第二连接接口且所述预充电模块的第二连接接口连接到DC-DC转换器的第二连接接口，在反向模式中，所述预充电模块配置成使用连接到DC-DC转换器的第二连接接口的电池来为连接到功率因数校正电路的第二接口的电容器充电。According to an aspect of the present invention, the electrical charger of the electrical system includes a pre-charge module, the first connection interface of the pre-charge module is connected to the second connection interface of the power factor correction circuit through the intermediary of a switch and all the The second connection interface of the pre-charging module is connected to the second connection interface of the DC-DC converter, and in the reverse mode, the pre-charging module is configured to use the battery connected to the second connection interface of the DC-DC converter to charge a capacitor connected to the second interface of the power factor correction circuit.

在一实施例中，电气系统的电气充电器包括第二预充电模块，所述第二预充电模块的第一连接接口通过开关的中介连接到功率因数校正电路的第一连接接口，且所述第二预充电模块的第二连接接口连接到功率因数校正电路的第二连接接口。In one embodiment, the electrical charger of the electrical system includes a second pre-charging module, the first connection interface of the second pre-charging module is connected to the first connection interface of the power factor correction circuit through the intermediary of a switch, and the The second connection interface of the second precharging module is connected to the second connection interface of the power factor correction circuit.

有利地，电气系统的电气充电器包括保险丝(fuse)。Advantageously, the electrical charger of the electrical system includes a fuse.

有利地，电气系统的电气充电器包括第二升压DC-DC转换器(step-up DC-DCconverter)，其一方面连接到DC-DC转换器的第二连接接口，且另一方面连接到功率因数校正电路的第二连接接口。Advantageously, the electrical charger of the electrical system comprises a second step-up DC-DC converter, which is connected on the one hand to the second connection interface of the DC-DC converter and on the other hand to the second connection interface of the DC-DC converter. The second connection interface of the power factor correction circuit.

有利地，电气系统的电气充电器的功率因数校正电路为双向的，且DC-DC转换器为自其第一连接接口到其第二连接接口单向的。Advantageously, the power factor correction circuit of the electrical charger of the electrical system is bidirectional, and the DC-DC converter is unidirectional from its first connection interface to its second connection interface.

本发明涉及一种用于使用尤其用于机动车辆的电池来提供充电的方法，所述方法通过包括如上文简要描述的电气充电器的电气系统实施。所述方法的显著之处在于其包括以下操作步骤：The present invention relates to a method for providing charging using a battery in particular for a motor vehicle, the method being implemented by an electrical system comprising an electrical charger as briefly described above. The remarkable feature of the method is that it includes the following steps:

-闭合(closing)连接DC-DC转换器的第二连接接口与功率因数校正电路的第二连接接口的至少一个开关，- closing at least one switch connecting the second connection interface of the DC-DC converter with the second connection interface of the power factor correction circuit,

-经由功率因数校正电路通过DC-DC转换器的第二接口的中介、至少一个开关的中介、第二连接接口的中介将来自电池的直流电压转换为交流电压，所述交流电压调适成供应连接到功率因数校正电路的第一连接接口的充电，- the conversion of the DC voltage from the battery into an AC voltage adapted to the supply connection via the intermediary of the second interface of the DC-DC converter, the intermediary of the at least one switch, the intermediary of the second connection interface via the power factor correction circuit charging to the first connection interface of the power factor correction circuit,

-通过来自功率因数校正电路的交流电压来提供充电。- Charging is provided by AC voltage from the power factor correction circuit.

本发明还涉及一种用于使用尤其用于机动车辆的电池来提供充电的方法，所述方法通过包括如上文简要描述的电气充电器的电气系统实施。所述方法的显著之处在于其包括检测充电的接口处的电压和电池的接口处的电压，且当充电的接口处的电压小于电池的接口处的电压时，进行以下步骤：The invention also relates to a method for providing charging using a battery in particular for a motor vehicle, the method being implemented by an electrical system comprising an electrical charger as briefly described above. The method is remarkable in that it includes detecting the voltage at the interface of the charging and the voltage at the interface of the battery, and when the voltage at the interface of the charging is less than the voltage at the interface of the battery, the following steps are performed:

-闭合连接DC-DC转换器的第二连接接口与功率因数校正电路的第二连接接口的至少一个开关，- closing at least one switch connecting the second connection interface of the DC-DC converter with the second connection interface of the power factor correction circuit,

-经由功率因数校正电路通过DC-DC转换器的第二接口的中介、至少一个开关的中介、第二连接接口的中介将来自电池的直流电压转换为交流电压，所述交流电压调适成提供连接到功率因数校正电路的第一连接接口的充电，- the conversion of the direct voltage from the battery into an alternating voltage via the power factor correction circuit through the intermediary of the second interface of the DC-DC converter, the intermediary of the at least one switch, the intermediary of the second connection interface, the alternating voltage being adapted to provide the connection charging to the first connection interface of the power factor correction circuit,

-通过来自功率因数校正电路的交流电压来提供充电。- Charging is provided by AC voltage from the power factor correction circuit.

本发明还涉及一种用于使用尤其用于机动车辆的电池来提供充电的方法，所述方法通过包括如上文简要描述的电气充电器和第二升压DC-DC转换器的电气系统实施。所述方法的显著之处在于其包括检测充电的接口处的电压和电池的接口处的电压，且当充电的接口处的电压大于电池的接口处的电压时，进行以下步骤：The invention also relates to a method for providing charging using a battery in particular for a motor vehicle, the method being implemented by an electrical system comprising an electrical charger as briefly described above and a second step-up DC-DC converter. The method is remarkable in that it includes detecting the voltage at the interface of the charging and the voltage at the interface of the battery, and when the voltage at the interface of the charging is greater than the voltage at the interface of the battery, the following steps are performed:

-经由第二DC-DC转换器通过DC-DC转换器的第二接口的中介将来自电池的直流电压转换为更高电压，所述更高电压输送到功率因数校正电路的第二接口，- converting the DC voltage from the battery to a higher voltage via the second DC-DC converter through the intermediary of the second interface of the DC-DC converter, the higher voltage being fed to the second interface of the power factor correction circuit,

-经由功率因数校正电路通过DC-DC转换器的第二接口的中介、至少一个开关的中介、第二连接接口的中介将来自电池的直流电压转换为交流电压，所述交流电压调适成提供连接到功率因数校正电路的第一连接接口的充电，- the conversion of the direct voltage from the battery into an alternating voltage via the power factor correction circuit through the intermediary of the second interface of the DC-DC converter, the intermediary of the at least one switch, the intermediary of the second connection interface, the alternating voltage being adapted to provide the connection charging to the first connection interface of the power factor correction circuit,

-通过来自功率因数校正电路的交流电压来提供充电。- Charging is provided by AC voltage from the power factor correction circuit.

本发明还涉及一种电动或混合机动车辆，包括如上文简要描述的电气系统。The invention also relates to an electric or hybrid motor vehicle comprising an electrical system as briefly described above.

附图说明Description of drawings

通过阅读仅作为实例给出的以下描述且通过参考作为非限制性实例给出的附图，将更好地理解本发明，其中相同的参考给予类似的对象，且其中：The invention will be better understood by reading the following description, given by way of example only, and by reference to the accompanying drawings, given by way of non-limiting example, wherein like references are given to like objects, and wherein:

-图1(上文已论述)是根据现有技术水平的电气系统的功能框图。- Figure 1 (discussed above) is a functional block diagram of an electrical system according to the state of the art.

-图2示出根据本发明的电气系统的实施例的功能框图。- Figure 2 shows a functional block diagram of an embodiment of an electrical system according to the invention.

-图3是图2的实施例的电子图。- FIG. 3 is an electronic diagram of the embodiment of FIG. 2 .

-图4是根据本发明的另一实施例的电子图。- Figure 4 is an electronic diagram according to another embodiment of the invention.

应注意，附图以用于实施本发明的具休方式来公开本发明，所述附图当然能够在适用时用以更好地定义本发明。It should be noted that the present invention is disclosed in a specific manner for carrying out the invention in the accompanying drawings, which can of course be used to better define the present invention, where applicable.

具体实施方式Detailed ways

应注意，下文中使用各种非限制性实施例来描述本发明，且在本发明还涉及的领域的技术人员的范围内能够在替代例中实施本发明。It should be noted that the invention is hereinafter described using various non-limiting embodiments and that the invention can be implemented in alternative embodiments within the scope of those skilled in the art to which the invention also relates.

图2示出根据本发明的电气系统的电气充电器OBC-1的第一实施例的功能框图。这一电气充电器OBC-1尤其配置成在电动或混合机动车辆上。电气充电器OBC-1使得可在所谓的“直接”模式中使用例如家用网络的外部电气供电网络G1为高电压供电电池HV充电，或在所谓的“反向”模式中使用所述高电压供电电池HV来供应充电。Figure 2 shows a functional block diagram of a first embodiment of the electrical charger OBC-1 of the electrical system according to the invention. This electrical charger OBC-1 is especially configured on electric or hybrid motor vehicles. The electrical charger OBC-1 makes it possible to charge the high-voltage supply battery HV in a so-called "direct" mode using an external electrical supply network G1 such as a home network, or in a so-called "reverse" mode with said high-voltage supply Battery HV to supply charging.

参考图2，根据所示出实施例，电气充电器OBC-1包括：Referring to Figure 2, according to the illustrated embodiment, the electrical charger OBC-1 includes:

-双向功率因数校正电路PFC，包括第一连接接口B1和第二连接接口B2，- a bidirectional power factor correction circuit PFC, comprising a first connection interface B1 and a second connection interface B2,

-DC-DC转换器DC/DC，包括第一连接接口B3和第二连接接口B4，- DC-DC converter DC/DC, comprising a first connection interface B3 and a second connection interface B4,

-预充电模块PC2和第二预充电模块PC1，分别包括第一连接接口B7和第一连接接口B5以及第二连接接口B8和第二连接接口B6，- the pre-charging module PC2 and the second pre-charging module PC1 respectively comprise a first connection interface B7 and a first connection interface B5 and a second connection interface B8 and a second connection interface B6,

-高电压供电电池HV，包括连接接口B9，- high-voltage power supply battery HV, including connection interface B9,

-链路电容器Clink，位于功率因数校正电路PFC与DC-DC转换器DC/DC之间，可抑止直流组件同时仍允许交流信号自一个直流组件传递到另一直流组件，- the link capacitor Clink, located between the power factor correction circuit PFC and the DC-DC converter DC/DC, suppresses the DC components while still allowing the AC signal to pass from one DC component to the other,

-三个开关A、B及C，- three switches A, B and C,

-保险丝F，换句话说，保护电气充电器OBC-1的断路器。- Fuse F, in other words, the circuit breaker that protects the electrical charger OBC-1.

电气充电器OBC-1的各种元件连接的方式取决于所使用的操作模式。The way the various elements of the electrical charger OBC-1 are connected depends on the operating mode used.

在直接模式中，开关A和开关B开启。电气充电器OBC-1的组件之间的所有链路用导电线制作。因此，外部电气供电网络G1连接到功率因数校正电路PFC的第一连接接口B1。第二预充电模块PC1的第一连接接口B5和第二连接接口B6分别通过开关C连接到功率因数校正电路PFC的第一连接接口B1和连接到第二连接接口B2。随后，功率因数校正电路PFC通过其第二连接接口B2连接到DC-DC转换器DC/DC的第一连接接口B3。此外，链路电容器Clink连接在第二连接接口B2与第一连接接口B3之间。最后，DC-DC转换器DC/DC的第二连接接口B4连接到高电压供电电池HV的连接接口B9。In direct mode, switch A and switch B are on. All links between the components of the electrical charger OBC-1 are made with conductive wire. Thus, the external electrical supply network G1 is connected to the first connection interface B1 of the power factor correction circuit PFC. The first connection interface B5 and the second connection interface B6 of the second precharging module PC1 are respectively connected to the first connection interface B1 and the second connection interface B2 of the power factor correction circuit PFC through the switch C. Subsequently, the power factor correction circuit PFC is connected to the first connection interface B3 of the DC-DC converter DC/DC through its second connection interface B2. Furthermore, the link capacitor Clink is connected between the second connection interface B2 and the first connection interface B3. Finally, the second connection interface B4 of the DC-DC converter DC/DC is connected to the connection interface B9 of the high-voltage supply battery HV.

仍参考图2，大部分(mass)的功率因数校正电路PFC和DC-DC转换器DC/DC经连接且可具有对于整个电气充电器OBC-1为共同的电气参考。电气充电器OBC-1较佳地还包括保险丝(换句话说，断路器(breaker))，其连接在高电压供电电池HV的连接接口B9与预充电模块PC2的第二输出接口B8之间，所述保险丝F可在电路的支路中开启电气电路并避免电气充电器OBC-1的任何劣化。在直接模式中，第一连接接口B1和第一连接接口B3对应于输入接口且第二连接接口B2和第二连接接口B4对应于功率因数校正电路PFC的输出接口。Still referring to Figure 2, the mass of the power factor correction circuit PFC and the DC-DC converter DC/DC are connected and may have a common electrical reference for the entire electrical charger OBC-1. The electrical charger OBC-1 preferably further comprises a fuse (in other words, a breaker), which is connected between the connection interface B9 of the high-voltage power supply battery HV and the second output interface B8 of the pre-charging module PC2, Said fuse F can open the electrical circuit in a branch of the circuit and avoid any degradation of the electrical charger OBC-1. In the direct mode, the first connection interface B1 and the first connection interface B3 correspond to the input interface and the second connection interface B2 and the second connection interface B4 correspond to the output interface of the power factor correction circuit PFC.

因此，在电气系统的直接操作模式和电气充电器OBC-1的直接操作模式中，在预充电步骤中，开关C闭合且因此功率因数校正电路PFC短路，第二预充电模块PC1允许电压逐渐增大以便防止链路电容器Clink的接口处的电压过量增大。在预充电完成时，开关C开启，允许双向功率因数校正电路PFC使用由外部电气供电网络G1供应的交流电压在其输出处输送正直流电压或负直流电压。随后，DC-DC转换器DC/DC可修改在功率因数校正电路PFC的输出处获得的直流电压，以便将所述直流电压调适为用于为高电压供电电池HV充电所需的直流电压。因此，高电压供电电池HV可被充电。Therefore, in the direct operation mode of the electrical system and the direct operation mode of the electrical charger OBC-1, during the precharging step, the switch C is closed and thus the power factor correction circuit PFC is short-circuited, the second precharging module PC1 allows the voltage to gradually increase large in order to prevent excessive voltage buildup at the interface of the link capacitor Clink. When precharging is complete, switch C is opened, allowing the bidirectional power factor correction circuit PFC to deliver a positive or negative DC voltage at its output using the AC voltage supplied by the external electrical supply network G1. The DC-DC converter DC/DC can then modify the DC voltage obtained at the output of the power factor correction circuit PFC in order to adapt it to the DC voltage required for charging the high voltage supply battery HV. Therefore, the high-voltage supply battery HV can be charged.

仍参考图2，在电气充电器OBC-1的反向操作模式中，高电压供电电池HV提供作为车辆外部的充电的供应源的功能。举例而言，这类充电器由任何一件电气设备组成(尤其为可再充电的)，能够由供电电池HV供电。在本发明的情况下所述充电的电源电压小于高电压供电电池HV的电压。Still referring to FIG. 2, in the reverse mode of operation of the electrical charger OBC-1, the high-voltage power supply battery HV provides the function as a supply source for charging external to the vehicle. Such chargers consist, for example, of any piece of electrical equipment (especially rechargeable) that can be powered by a supply battery HV. In the case of the present invention, the supply voltage of the charging is lower than the voltage of the high-voltage supply battery HV.

首先，在反向操作模式中，可提供预充电步骤。此外，为了在其之间连接电气充电器OBC-1的接地，提供开关D。因此，在预充电步骤期间，开关A和开关D闭合，因此DC-DC转换器DC/DC短路。换句话说，这一预充电步骤可使高电压供电电池HV的连接接口B9连接到预充电模块PC2的第二连接接口B8，且使预充电模块PC2的第一连接接口B7与功率因数校正电路PFC的第二连接接口B2连接。First, in the reverse mode of operation, a precharge step may be provided. Furthermore, in order to connect the ground of the electrical charger OBC-1 therebetween, a switch D is provided. Therefore, during the pre-charging step, switch A and switch D are closed and thus the DC-DC converter DC/DC is short-circuited. In other words, this precharging step allows the connection interface B9 of the high-voltage power supply battery HV to be connected to the second connection interface B8 of the precharge module PC2, and the first connection interface B7 of the precharge module PC2 to be connected to the power factor correction circuit The second connection interface B2 of the PFC is connected.

因此，预充电模块PC2连接在高电压供电电池HV与功率因数校正电路PFC之间，避免链路电容器Clink中的任何涌入电流且因此避免链路电容器Clink的任何劣化。Therefore, the precharge module PC2 is connected between the high voltage supply battery HV and the power factor correction circuit PFC, avoiding any inrush current in the link capacitor Clink and thus any degradation of the link capacitor Clink.

在预充电步骤完成(如果可应用)时，开关A开启且开关B闭合，开关D在反向操作模式中保持持续闭合。因此，DC-DC转换器DC/DC和预充电模块PC2短路，且高电压供电电池HV的连接接口B9直接连接到功率因数校正电路PFC的第二连接接口B2。此外，充电(charge)连接到功率因数校正电路PFC的第一连接接口B1。When the precharge step is complete (if applicable), switch A is open and switch B is closed, and switch D remains continuously closed in the reverse mode of operation. Therefore, the DC-DC converter DC/DC and the pre-charging module PC2 are short-circuited, and the connection interface B9 of the high-voltage power supply battery HV is directly connected to the second connection interface B2 of the power factor correction circuit PFC. Furthermore, the charge is connected to the first connection interface B1 of the power factor correction circuit PFC.

因此，为提供所述充电，由高电压供电电池HV供电的直流电通过功率因数校正电路PFC转换为替代电压。Therefore, to provide said charging, the direct current supplied by the high voltage supply battery HV is converted into an alternative voltage by the power factor correction circuit PFC.

图3详细地示出电气充电器OBC-1的实施例。在这一实例中，功率因数校正电路PFC的交流-直流转换器AC/DC包括H桥(H bridge)，其包括充当开关的四个双极晶体管(bipolar transistor)以及四个二极管。另一方面，DC-DC转换器DC/DC包括电路LLC，其对于本领域的技术人员为已知的且因此本文中不描述。最后，开关A、开关B、开关C以及开关D可为继电器(relay)、GTO晶闸管(GTO thyristor)(即门极关断晶闸管(gate turnoffthyristor，GTO))、可控硅整流晶闸管或SCR晶闸管、MOSFE、称作IGBT晶体管的绝缘栅极双极晶体管等。Figure 3 shows an embodiment of the electrical charger OBC-1 in detail. In this example, the AC-DC converter AC/DC of the power factor correction circuit PFC includes an H bridge including four bipolar transistors acting as switches and four diodes. On the other hand, the DC-DC converter DC/DC includes a circuit LLC, which is known to those skilled in the art and is therefore not described herein. Finally, switch A, switch B, switch C and switch D may be relays, GTO thyristors (ie gate turnoff thyristors (GTO)), silicon controlled rectifier thyristors or SCR thyristors, MOSFETs, insulated gate bipolar transistors called IGBT transistors, etc.

根据一实施例，在电气充电器OBC-1处于反向模式中的情况下，如果高电压供电电池HV的电压小于充电的电源电压的最大幅值，那么电气充电器OBC-1包括第二所谓的“升压”DC-DC转换器CE，其添加到电气充电器OBC-1以便确保电气充电器OBC-1的正确操作并符合要求地提供充电。换句话说，第一实施例的电气充电器OBC-1在高电压供电电池HV的电压较低(即小于340伏)时并不在反向操作模式中运行。为了增大高电压供电电池HV的末端处的电压，将第二DC-DC转换器CE添加到电气充电器OBC-1。According to an embodiment, with the electrical charger OBC-1 in reverse mode, if the voltage of the high-voltage supply battery HV is less than the maximum magnitude of the charged supply voltage, the electrical charger OBC-1 includes a second so-called A "step-up" DC-DC converter CE, which is added to the electrical charger OBC-1 in order to ensure correct operation of the electrical charger OBC-1 and provide charging compliantly. In other words, the electrical charger OBC-1 of the first embodiment does not operate in the reverse operation mode when the voltage of the high-voltage supply battery HV is low (ie, less than 340 volts). In order to increase the voltage at the ends of the high voltage supply battery HV, a second DC-DC converter CE is added to the electrical charger OBC-1.

因此，在第二实施例中，参考图4，电气充电器OBC-2与电气充电器OBC-1类似，不同之处在于转换器DC/DC另外包括第二DC-DC转换器CE。所述第二DC-DC转换器CE使得增大输送到充电器的电压为可能的。Therefore, in the second embodiment, referring to FIG. 4 , the electrical charger OBC-2 is similar to the electrical charger OBC-1 , except that the converter DC/DC additionally includes a second DC-DC converter CE. Said second DC-DC converter CE makes it possible to increase the voltage delivered to the charger.

因此，参考图4，示出本发明的另一实施例。第二DC-DC转换器CE与DC-DC转换器电路分离且与图2中示出的电气充电器OBC-1的其它组件分离。在这一实施例中，所述升压电路CE一方面连接到高电压供电电池HV的连接接口B9，且另一方面连接到功率因数校正电路PFC的第二连接接口B2。Thus, referring to Figure 4, another embodiment of the present invention is shown. The second DC-DC converter CE is separate from the DC-DC converter circuit and from the other components of the electrical charger OBC-1 shown in FIG. 2 . In this embodiment, the booster circuit CE is connected to the connection interface B9 of the high-voltage supply battery HV on the one hand and to the second connection interface B2 of the power factor correction circuit PFC on the other hand.

已声明本发明不限于所描述的实例且能够在本领域的技术人员的范围内进行修改。It is stated that the present invention is not limited to the described examples and can be modified within the scope of those skilled in the art.

Claims (9)

1. An electrical system, in particular for a motor vehicle, comprising:
-an electrical charger (OBC-1) and an electrical charger (OBC-2) configured to power a power supply battery (HV), -said electrical charger (OBC-1) and said electrical charger (OBC-2) comprising a power factor correction circuit (PFC) and a direct current to direct current converter (DC/DC), said power factor correction circuit comprising a first connection interface (B1) and a second connection interface (B2), -said direct current to direct current converter comprising a first connection interface (B3) and a second connection interface (B4), -said electrical charger (OBC-1) and said electrical charger (OBC-2) being configured to have two modes of operation:
a direct mode of operation in which an external electrical supply network (G1) powers the supply battery (HV) through the intermediary of the power factor correction circuit (PFC) and the intermediary of the DC-DC converter (DC/DC), the second connection interface (B2) of the power factor correction circuit (PFC) being connected to the first connection interface (B3) of the DC-DC converter (DC/DC), in direct mode the second connection interface (B2) corresponding to the output interface of the power factor correction circuit (PFC),
a reverse mode of operation, wherein the supply battery (HV) provides charging through the intermediary of the power factor correction circuit (PFC),
the electrical system comprises a short-circuit of the direct current to direct current converter (DC/DC), the short-circuit comprising at least one of a switch (B) and a switch (D) that can directly connect the second connection interface (B4) of the direct current to direct current converter (DC/DC) to the second connection interface (B2) of the power factor correction circuit (PFC), the second connection interface (B2) of the power factor correction circuit (PFC) corresponding to an input interface of the power factor correction circuit (PFC) in a reverse operation mode.
2. The electrical system of claim 1, wherein the electrical charger (OBC-1) and the electrical charger (OBC-2) comprise a pre-charge module (PC2), the first connection interface (B7) of the pre-charge module is connected to the second connection interface (B2) of the power factor correction circuit (PFC) through the intermediary of a switch (A), and a second connection interface (B8) of the precharge module is connected to the second connection interface (B4) of the direct current-to-direct current converter (DC/DC), in the reverse operation mode, the pre-charge module (PC2) is configured to charge a capacitor connected to the second connection interface (B2) of the power factor correction circuit (PFC) using the supply battery (HV) connected to the second connection interface (B4) of the direct current to direct current converter (DC/DC).
3. The electrical system according to claim 1 or 2, wherein the electrical charger (OBC-1) and the electrical charger (OBC-2) comprise a second boost DC-DC Converter (CE) connected on the one hand to the second connection interface (B4) of the DC-DC converter (DC/DC) and on the other hand to the second connection interface (B2) of the power factor correction circuit (PFC).
4. An electrical system as claimed in claim 1 or 2, wherein the power factor correction circuit (PFC) is bidirectional and the direct current to direct current converter (DC/DC) is unidirectional from its first connection interface (B3) to its second connection interface (B4).
5. Method for providing charging using a battery (HV), in particular for a motor vehicle, implemented by an electrical system according to any one of the preceding claims, comprising the steps of:
i. at least one of a switch (B) and a switch (D) connecting the second connection interface (B4) of the direct current-to-direct current converter (DC/DC) and the second connection interface (B2) of the power factor correction circuit (PFC) is closed,
-converting a direct voltage from the battery (HV) via the power factor correction circuit (PFC) through the intermediary of the second connection interface (B4) of the direct-current-to-direct-current converter (DC/DC), the intermediary of at least one of the switch (B) and the switch (D), the intermediary of the second connection interface (B2) into an alternating voltage adapted to provide the charging of a first connection interface (B1) connected to the power factor correction circuit (PFC),
providing the charging by the alternating voltage from the power factor correction circuit (PFC).
6. Method for providing charging using a battery (HV), in particular for a motor vehicle, the method being implemented by an electrical system according to any one of claims 1 to 4, the method for providing charging comprising detecting a voltage at an interface of the charging and a voltage at an interface of the battery (HV), and when the voltage at the interface of the charging is less than the voltage at the interface of the battery (HV), performing the following steps:
i. at least one of a switch (B) and a switch (D) connecting the second connection interface (B4) of the direct current-to-direct current converter (DC/DC) and the second connection interface (B2) of the power factor correction circuit (PFC) is closed,
-converting a direct voltage from the battery (HV) via the power factor correction circuit (PFC) through the intermediary of the second connection interface (B4) of the direct-current-to-direct-current converter (DC/DC), the intermediary of at least one of the switch (B) and the switch (D), the intermediary of the second connection interface (B2) into an alternating voltage adapted to provide the charging of a first connection interface (B1) connected to the power factor correction circuit (PFC),
providing the charging by the alternating voltage from the power factor correction circuit (PFC).
7. Method for providing charging using a battery (HV) according to claim 6, implemented by an electrical system according to claim 3, comprising detecting the voltage at the interface of the charging and the voltage at the interface of the battery (HV), and when the voltage at the interface of the charging is greater than the voltage at the interface of the battery (HV), performing the following steps:
i. -converting the direct voltage from the battery (HV) via the second step-up DC-to-DC Converter (CE) through the intermediary of the second interface (B4) of the DC-to-DC converter (DC/DC) into a higher voltage, said higher voltage being delivered to the second interface (B2) of the power factor correction circuit (PFC),
-converting a direct voltage from the battery (HV) via the power factor correction circuit (PFC) through the intermediary of the second interface (B4) of the direct current to direct current converter (DC/DC), the intermediary of at least one of the switch (B) and the switch (D), the intermediary of the second connection interface (B2) into an alternating voltage adapted to provide the charging of the first connection interface (B1) connected to the power factor correction circuit (PFC),
providing the charging by the alternating voltage from the power factor correction circuit (PFC).
8. An electric motor vehicle comprising an electrical system according to any one of claims 1 to 4.
9. A hybrid motor vehicle comprising an electrical system according to any one of claims 1 to 4.
CN201910568171.7A 2018-06-29 2019-06-27 Electrical system, method for providing charging by battery, electric and hybrid motor vehicle Pending CN110723006A (en)

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FR1856020A FR3083382B1 (en) 2018-06-29 2018-06-29 ELECTRICAL SYSTEM AND METHOD FOR CHARGING A BATTERY, ESPECIALLY FOR VEHICLES

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