CN102593913A - Equipment and method for carrying out non-rush-time charging - Google Patents

Abstract

The invention relates to a method for carrying out non-rush-time charging, and charging equipment is connected to a motor vehicle. The method comprises the following steps: A, acquiring charging state information including current electricity quantity, rated electricity quantity and charging power; B, acquiring non-rush-time charging quantity demand, and calculating a charging time period and/or estimated cost according to the non-rush-time charging quantity demand and the charging state information; C, displaying the charging time period and/or the estimated cost; D, acquiring the charging indication information; and E, carrying out the non-rush-time charging on the motor vehicle if the charging indication information selects the non-rush-time charging, otherwise, not carrying out the non-rush-time charging.

Description

A device and method for off-peak charging

technical field

The present invention relates to the field of power applications, and in particular to a device and method for off-peak charging.

Background technique

At present, the harm of the greenhouse effect is increasing year by year and the problem of oil shortage is becoming more and more serious. Traditional automobiles further aggravate the increasingly serious environmental pollution and energy shortage problems. Electric vehicles have high efficiency and low emissions, which can fundamentally reduce dependence on oil, increase the use of renewable energy, and reduce emissions of carbon dioxide and pollutants, and have received widespread attention. Countries all over the world have invested huge sums of money in the research and development of electric vehicle technology, especially in the core power supply system and drive system. A lot of research has been done and great progress has been made.

Electric vehicles refer to vehicles that are driven entirely or partially by motors. At present, there are mainly pure electric vehicles, hybrid vehicles, fuel cell electric vehicles, and external rechargeable hybrid vehicles. In order to supply electric power to an electric vehicle, it is necessary to install a charging device capable of charging the electric vehicle. At present, electric vehicle charging equipment mainly includes charging piles and charging stations.

Generally speaking, charging piles are relatively simple, occupy a small area, and are easy to install. They can be installed in electric vehicle charging stations and public parking places, and are easy to operate. They are important electric vehicle charging facilities. The charging station is similar to the car gas station. It is a relatively large "recharging station". It can quickly charge mobile phones, electric vehicles, electric vehicles and other equipment. It can charge several to dozens of battery combinations at the same time. It can be used The high-power off-board charger directly charges the battery quickly, and the off-board or on-board charger can also be used to slowly charge the battery.

In the power system, the power load usually changes with time, and it is usually divided into three stages: peak, flat, and trough every day, and can also be divided into more periods or two periods. Due to the large power consumption during the peak period, it is prone to overload, which is not conducive to the safe operation of the equipment. Therefore, how to transfer the load from the peak period to the off-peak period is an important problem that the power system needs to solve.

The increasing number of electric vehicles may aggravate the problem of excessive peak load power, but this problem has not been considered in charging equipment such as charging piles and charging stations in the prior art. In order to solve this problem, it is necessary to make full use of the "off-peak period" to charge non-emergency and non-instant electric vehicles. The object of the present invention is just for this problem, and proposes the method how to make full use of off-peak electricity.

Contents of the invention

In order to solve the above problems, according to one aspect of the present invention, a method for off-peak charging is provided, the charging device is connected to the motor vehicle, the method includes: A. Acquiring charging status information, the charging status information includes Current power, rated power and charging power; B. Obtain the off-peak charging demand, and calculate the charging time period and/or estimated cost according to the off-peak charging demand and charging status information; C. Display the charging time period and/or Estimated cost; D. Obtaining charging instruction information; E. If the charging instruction information selects off-peak charging, perform off-peak charging on the motor vehicle; otherwise, do not perform off-peak charging.

According to one aspect of the present invention, there is provided a method for off-peak charging, connecting a charging device to a motor vehicle, the method comprising: A. acquiring charging status information, the charging status information including current power, rated power and charging power; B. Obtain the immediate charging demand and off-peak charging demand, and calculate the charging time period and/or estimated cost according to the immediate charging demand, off-peak charging demand and charging status information; C. Display charging Time period and/or estimated cost; D. Obtain charging instruction information; E. If the charging instruction information indicates that immediate charging and off-peak charging are selected, the motor vehicle is charged immediately and off-peak; otherwise, no immediate charging and off-peak charging.

Preferably, step C further includes, if the displayed charging time period and/or estimated cost is not accepted, repeating steps B and C until accepted. Preferably, if the charging time period and/or estimated cost are not acceptable, the off-peak charging demand or immediate charging demand and off-peak charging demand can be obtained repeatedly, and the charging time period and/or estimated charging demand can be repeatedly calculated. fees until accepted.

Preferably, the off-peak charging demand and/or the immediate charging demand are: final amount or incremental amount; and the charging demand is represented by one of the following: driving distance, percentage of battery rated capacity, charging Degree, length of charging time or amount of electricity bill.

Preferably, the charging demand is the charging demand input by the user or the charging demand preset by the system.

Preferably, the charging demand is calculated according to the travel distance, and the charging demand is converted into a charging time period according to the charging state information.

Preferably, the charging demand is calculated according to the electricity charge, and the charging amount is converted into a charging time period according to the charging state information.

Preferably, it also includes displaying at least one of the following contents: charging start time, charging end time, electric quantity at the beginning of charging, electric quantity at the end of charging, the distance that can be traveled before the start of charging, the distance that can be traveled at the end of charging or the charging electricity cost.

Preferably, it also includes storing at least one of the following contents through the storage unit in the charging device: off-peak period start time, off-peak period end time, and electricity price information; or storing at least one of the following contents through the storage unit in the motor vehicle : Off-peak period start time, off-peak period end time, electricity price information.

Preferably, one of the following charging modes can also be selected according to the charging indication information after non-peak charging or immediate charging and off-peak charging are not performed otherwise: immediate charging, timed charging, and valley charging , lowest valley charging, immediate charging and valley charging, or immediate charging and lowest valley charging. Preferably, the immediate charging and the valley charging mean: a charging mode in which the immediate charging and the valley charging are combined. Preferably, the immediate charging and the lowest valley charging mean: a charging mode in which the two charging modes of immediate charging and lowest valley charging are combined.

According to one aspect of the present invention, there is provided a method for off-peak charging, connecting a charging device to a motor vehicle, the method comprising: A. displaying charging prompt information; B. obtaining charging indication information; C. if the If the charging indication information indicates that off-peak charging is selected, off-peak charging is performed on the motor vehicle; otherwise, off-peak charging is not performed.

According to one aspect of the present invention, there is provided a charging device for off-peak charging, the charging device is connected to a motor vehicle, the charging device includes: a control unit, a display unit and an input unit, characterized in that the control unit, Obtain charging status information, the status information includes current power, rated power and charging power; obtain off-peak charging demand, and calculate off-peak charging time period and/or estimated charging time according to off-peak charging demand and charging status information charges; off-peak charging for motor vehicles; a display unit for displaying off-peak charging time periods and/or estimated costs; and an input unit for obtaining charging instruction information.

According to one aspect of the present invention, there is provided a charging device for off-peak charging, the charging device is connected to a motor vehicle, the charging device includes: a control unit, a display unit and an input unit, characterized in that the control unit, Obtain charging status information, the status information includes current power, rated power and charging power; obtain immediate charging demand and off-peak charging demand, and calculate according to immediate charging demand, off-peak charging demand and charging status information Charging time period and/or estimated cost; immediate charging and off-peak charging for the motor vehicle; display unit for displaying charging time period and/or estimated cost; and input unit for obtaining charging instruction information.

Preferably, the off-peak charging demand and/or the immediate charging demand are: final amount or incremental amount; and the charging demand is represented by one of the following: driving distance, percentage of battery rated capacity, charging Degree, length of charging time or amount of electricity bill.

Preferably, the charging demand is the charging demand input by the user or the charging demand preset by the system.

Preferably, the charging demand is calculated according to the travel distance, and the charging demand is converted into a charging time period according to the charging state information.

Preferably, the charging demand is calculated according to the electricity charge, and the charging amount is converted into a charging time period according to the charging state information.

Preferably, it also includes displaying at least one of the following contents: charging start time, charging end time, electric quantity at the beginning of charging, electric quantity at the end of charging, the distance that can be traveled before the start of charging, the distance that can be traveled at the end of charging or the charging electricity cost.

Preferably, it also includes storing at least one of the following contents through the storage unit in the charging device: off-peak period start time, off-peak period end time, and electricity price information; or storing at least one of the following contents through the storage unit in the motor vehicle : Off-peak period start time, off-peak period end time, electricity price information.

According to one aspect of the present invention, there is provided a charging device for off-peak charging, the charging device is connected to a motor vehicle, the charging device includes: a control unit, a display unit and an input unit, characterized in that the display unit, displaying charging prompt information; an input unit for obtaining charging instruction information; a control unit for performing off-peak charging on the motor vehicle if the charging instruction information indicates that off-peak charging is selected.

Many of the techniques described here can be implemented in hardware, firmware, software, or a combination thereof. In one example, the above technology is implemented in a computer program executed on a programmable computer, each programmable computer includes a processor, a storage medium readable by the processor (including volatile and non-volatile memories and/or storage elements), and appropriate input and output devices. Apply program code to data entered using an input device to perform the functions described and to generate output information. Applies output information to one or more output devices. Furthermore, each program is preferably implemented using a high-level procedural or object-oriented programming language to communicate with the computer system. However, the above programs can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language.

Description of drawings

These and further features and advantages of the present invention may be better understood by reading the following detailed description of the preferred exemplary embodiments when read in conjunction with the accompanying drawings, in which:

Fig. 1 shows a schematic structural diagram of charging an electric vehicle with a charging pile in the prior art;

Fig. 2 shows a schematic structural diagram of off-peak charging of a motor vehicle according to an embodiment of the present invention;

Fig. 3 shows a schematic structural diagram of off-peak charging of a motor vehicle according to another embodiment of the present invention;

FIG. 4 shows a flowchart for off-peak charging according to one embodiment of the present invention;

FIG. 5 is a flowchart for immediate charging and off-peak charging according to one embodiment of the present invention;

FIG. 6 is a flowchart for off-peak charging according to another embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units/elements are given the same reference numerals.

As used herein, "a", "an", "the" and "the" also include plural forms unless stated otherwise. In addition, it should be understood that the terms "comprising", "comprising" and/or "comprising" used in this specification designate some features, entities, steps, operations, units, and/or elements, but do not exclude one or a plurality of features, entities, steps, operations, units, elements and/or groups composed of them. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. In addition, "connected" or "coupled" referred to herein includes wirelessly connected or coupled. The term "and/or" used herein includes any and all combinations of one or more listed related items.

Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or overly formal meanings.

Fig. 1 shows a schematic structural diagram of charging an electric vehicle using a charging pile in the prior art. As shown in FIG. 1 , the structure includes a charging pile 101 and an electric vehicle 111 . The charging pile 101 may include: a display unit 102 , a control unit 103 and a power supply unit 104 . The electric vehicle 111 may include: a terminal control unit 112 , a battery management unit 113 and a battery 114 . When the electric vehicle 111 is connected to the charging pile 101 through the transmission line 122 , the charging pile 101 can charge the electric vehicle 111 through the transmission line 122 . The charging pile 101 can also charge the electric vehicle 111 by means of electromagnetic induction, and the power transmission line 122 is not needed at this time. The electric vehicle 111 can also communicate with the charging pile 101 through a wired or wireless communication line 121 . The electric vehicle 111 and the charging pile 101 can transmit various data, such as battery status information, to each other through the communication line.

In the prior art, the display unit 102 can display the charging status, such as the percentage of charged information, remaining charging time and so on. The control unit 103 determines display data through the data from the battery management unit 113 and supplies the display data to the display unit 102 . The control unit 103 controls the power supply unit 104 to charge the electric vehicle 111 . The terminal control unit 112 is the core control component inside the electric vehicle 111 and realizes the control of various functions of the electric vehicle 111 . The battery 114 is capable of storing electrical energy and is capable of providing direct current when the electric vehicle is running. A battery management system (Battery Management System, BMS) 113 is connected between the battery 114 and the terminal control unit 112, and is used to improve the utilization rate of the battery, prevent the battery from overcharging and overdischarging, prolong the service life of the battery, and monitor the state of the battery wait. Preferably, the electric vehicle 111 may further include a power supply unit (not shown in FIG. 1 ), the power supply unit is used to convert the AC power input by the charging pile 101 into DC power, so as to store the converted DC power in the battery 114 .

in the prior art. The charging process is related to the characteristics of the power battery. For example, lead-acid batteries often include pre-charging, constant-current charging, constant-voltage charging, and floating charging. In order to reduce the polarization effect, reverse discharge pulses can also be mixed in the middle. When problems such as overheating are monitored, they must be left standing . The charging of lithium-ion batteries commonly used in electric vehicles generally includes constant current charging and constant voltage charging, and there are also overheating protections, and charging is suspended when the temperature is too high. The method provided by the present invention is consistent with the above-mentioned charging method. The controller calculates the charging time period and/or the electricity fee according to the normal charging process, and performs charging according to the set mode. At least the charging process is carried out in an off-peak period, or divided into two stages of immediate charging and off-peak charging and the off-peak charging stage is carried out in an off-peak period.

However, in the prior art, the charging pile 101 cannot guarantee that the electric vehicle 111 is charged during the off-peak period of electricity consumption. For this reason, the present invention proposes a device and a method capable of charging electrical equipment such as an electric vehicle during off-peak periods.

Fig. 2 shows a schematic structural diagram of off-peak charging for a motor vehicle according to an embodiment of the present invention. As shown in FIG. 2 , the structure includes a charging device 201 and a motor vehicle 211 . The charging device 201 may be a charging station, a charging pile and other devices capable of charging electric devices. The motor vehicle 211 may be an electric vehicle, an electric bicycle, an electric tricycle, etc., which use electric energy as power. The present invention is described by taking an electric vehicle as an example, but the present invention is not limited to the electric vehicle, but can be applied to other electric devices. And among them, an electric vehicle is a vehicle whose power system is fully or partially driven by electric energy, including pure electric vehicles, hybrid electric vehicles, fuel cell electric vehicles, and externally plugged hybrid electric vehicles.

Preferably, when the motor vehicle 211 is connected to the charging device 201 through the wired or wireless power transmission line 222 , the charging device 201 can charge the motor vehicle 211 through the wired or wireless power transmission line 222 . Preferably, the wired power transmission line is, for example, a cable, and the wireless power transmission line may be electromagnetic induction. Preferably, the motor vehicle 211 can also communicate with the charging device 201 through a wired or wireless communication line 221 . Preferably, the wired communication line is, for example, an optical fiber, a twisted pair, or the like. In addition, the motor vehicle 211 and the charging device 201 can transmit various data to each other through the communication line 221 , such as the current power, rated power and charging power of the motor vehicle, or charging time period and estimated cost. Preferably, the charging power usually includes two aspects of information, one is the power curve allowed in the charging process of the motor vehicle or a description equivalent to the power curve, usually obtained from the battery management system of the motor vehicle; the other is the maximum charge allowed by the charging device power. The lesser of the two should be used when doing the actual charging and when calculating the charging time period and/or estimated cost.

According to a preferred embodiment of the present invention, the charging device 201 may include: a display unit 202 , a control unit 203 and an input unit 204 . Preferably, the charging device 201 may further include a power supply unit 205 for converting the input AC power into DC power, so as to transmit the converted DC power to the motor vehicle 211 , and store the converted DC power in the battery 214 . Preferably, a power supply unit (not shown) may also be provided in the motor vehicle 211 for converting the AC power input by the charging device 201 into DC power so as to store the converted DC power in the battery 214 .

Preferably, the display unit 202 can display the charging time period and/or estimated cost. Preferably, the charging time period and/or electricity charge is at least one of the following: charging start time, charging end time, electric quantity at the beginning of charging, electric quantity at the end of charging, distance that can be traveled before charging starts, distance that can be traveled at the end of charging distance or charge electricity cost. Preferably, the display unit 202 can display the charging mode, such as immediate charging and/or off-peak charging. Preferably, the display unit 202 may be a touch screen.

Preferably, the control unit 203 can acquire charging state information. Wherein, the charging state information may be current electric quantity, rated electric quantity and charging power. Preferably, the current electric quantity and the rated electric quantity are obtained from the battery management system of the motor vehicle 211 . According to an embodiment of the present invention, when the power supply unit is provided in the motor vehicle 211 , information of charging power is acquired from the motor vehicle 211 . Preferably, when the power supply unit is set in the charging device 201 , the charging power information is obtained from the charging device 201 .

Preferably, the control unit 203 can obtain off-peak charging demand and/or immediate charging demand. Preferably, the control unit 203 can acquire the off-peak charging demand and/or the immediate charging demand via the display unit 202 or via the input unit 204 . Preferably, the off-peak charging amount demand and/or the immediate charging demand amount may be: a final amount or an incremental amount, ie, a final charging amount or an increased charging amount. Preferably, the off-peak charging demand and/or the immediate charging demand is represented by one of the following: driving distance, percentage of battery rated capacity, charging degree, charging time length or electricity cost. Preferably, the off-peak charging demand and/or the immediate charging demand may be the charging demand input by the user or the charging demand preset by the system. Preferably, due to the small power and long time at the end of the charging process, the charging demand preset by the system can be less than the rated power, such as 98%, 95%, 90% of the rated power or other appropriate amount, according to which and display the charging time period and/or estimated cost. However, during actual charging, after the preset charging demand of the system is completed, the charging can continue to the rated power. Preferably, the charging demand is calculated according to the travel distance, and the charging demand is converted into a charging time period according to the charging state information. Preferably, the charging demand is calculated according to the electricity charge, and the charging amount is converted into a charging time period according to the charging state information.

According to a preferred embodiment of the present invention, if the off-peak charging demand is obtained, the control unit 203 calculates the charging time period and/or the estimated cost according to the off-peak charging demand and the charging state information. Preferably, if the calculation and display of the charging time period and/or the estimated cost are not acceptable, the off-peak charging demand and/or immediate charging demand can be obtained repeatedly, and the off-peak charging demand and charging status can be obtained repeatedly. The information calculates the charging time period and/or the estimated cost.

The control unit 203 parses the charging instruction information acquired from the input unit 204 . If the charging instruction information selects off-peak charging, the control unit 203 performs off-peak charging on the motor vehicle. Preferably, during actual charging, the calculated charging time period may be fine-tuned according to the charging demand, that is, the charging time period may be moved forward or backward in time for a period of time (for example, a few seconds or a few minutes). Preferably, the charging can be performed according to the obtained off-peak charging demand, or according to the expected time period.

Preferably, if the charging indication information does not select off-peak charging, off-peak charging is not performed. Preferably, the charging indication information may also indicate to select one or more of the following: immediate charging, regular charging, valley charging, or lowest valley charging. Preferably, the regular charging refers to charging within a time period specified by the user. Preferably, charging in the valley period refers to charging during the valley period. Preferably, the lowest valley charging refers to charging during the time period with the lowest power consumption, and the time period is usually in the valley period, and is a time period with low power consumption in the valley period.

According to a preferred embodiment of the present invention, if the immediate charging demand and the off-peak charging demand are obtained, the control unit 203 calculates the charging time period and / or estimated costs. Preferably, if the calculation and display of the charging time period and/or the estimated cost are not acceptable, the immediate charging demand and the off-peak charging demand can be repeatedly obtained, and according to the immediate charging demand, off-peak charging demand and The charge status information calculates the charging time period and/or the estimated cost.

The control unit 203 parses the charging instruction information acquired from the input unit 204 . If the charging indication information selects immediate charging and off-peak charging, the control unit 203 performs immediate charging and off-peak charging on the motor vehicle. Preferably, during actual charging, the calculated charging time period may be fine-tuned according to the charging demand, that is, the charging time period is moved forward or backward in time for a period of time (for example, a few seconds or a few minutes). Preferably, charging can be performed according to the acquired charging demand, or can be charged according to a predicted time period.

Preferably, if the charging indication information does not select immediate charging and off-peak charging, immediate charging and off-peak charging are not performed. Preferably, the charging indication information may also indicate to select one or more of the following: immediate charging, regular charging, valley charging, or lowest valley charging. Preferably, the regular charging refers to charging within a time period specified by the user. Preferably, charging in the valley period refers to charging during the valley period. Preferably, the lowest valley charging refers to charging during the time period with the lowest power consumption, and the time period is usually in the valley period, and is a time period with low power consumption in the valley period.

According to a preferred embodiment of the present invention, if the charging indication information acquired by the control unit 203 indicates that off-peak charging is selected, off-peak charging is performed on the motor vehicle; otherwise, off-peak charging is not performed.

Preferably, the input unit 204 is configured to acquire charging instruction information. Preferably, the charging instruction information may indicate that an off-peak charging mode is selected. Preferably, the charging indication information may also indicate to select one or more of the following: immediate charging, regular charging, valley charging, or lowest valley charging. Preferably, the regular charging refers to charging within a time period specified by the user. Preferably, charging in the valley period refers to charging during the valley period. Preferably, the lowest valley charging refers to charging during the time period with the lowest power consumption, and the time period is usually in the valley period, and is a time period with low power consumption in the valley period. Preferably, when performing off-peak charging, start charging at the start time of the off-peak period until the off-peak charging demand is completed. When an off-peak period cannot be completed, continue charging in other time periods or in the next off-peak period until the off-peak charging demand is completed. Preferably, other time periods may include a valley period, a lowest valley period, and the like.

Preferably, the power supply unit 205 can provide the motor vehicle with the power required for immediate charging, off-peak charging, or both immediate charging and off-peak charging. Preferably, if the power obtained by the charging device 201 is alternating current, the power supply unit 205 in the charging device 201 can convert the alternating current into direct current, then transmit the direct current to the motor vehicle 211, and then use the direct current to charge the battery. Preferably, if the power obtained by the charging device 201 is alternating current, the alternating current can be directly transmitted to the motor vehicle 211, and the power supply unit (not shown) in the motor vehicle 211 converts the alternating current into direct current, and then uses the direct current to charge the battery. Preferably, if the power obtained by the charging device 201 is direct current, the direct current can be directly transmitted to the motor vehicle 211, and then the battery can be charged using the direct current. Preferably, if the electric power obtained by the charging device 201 is direct current, it can be rectified by the power supply unit in the motor vehicle 211 or the charging device 201, and then the rectified direct current can be used to charge the battery. Preferably, the charging device 201 may also include a storage unit (not shown in FIG. 2 ), which stores at least one of the following: off-peak period start time, off-peak period end time, electricity price information; The storage unit stores at least one of the following contents: off-peak period start time, off-peak period end time, and electricity price information.

According to a preferred embodiment of the present invention, the motor vehicle 211 includes: a terminal control unit 212 , a battery management system 213 and a battery 214 . Preferably, the terminal control unit 212 is a core control component inside the electric vehicle, and realizes the control of various functions of the electric vehicle. The battery 214 is capable of storing electrical energy and is capable of providing direct current when the electric vehicle is running. The battery management system 213 is connected between the battery 214 and the terminal control unit 212, and is used to improve the utilization rate of the battery, prevent the battery from overcharging and overdischarging, prolong the service life of the battery, and monitor the state of the battery.

Fig. 3 shows a schematic structural diagram of off-peak charging of a motor vehicle according to another embodiment of the present invention. As shown in FIG. 3 , the structure includes a charging device 301 and a motor vehicle 311 . The difference between the structure shown in FIG. 3 and the structure shown in FIG. 2 is that the charging device 301 in FIG. 3 also includes a communication unit. Preferably, the communication unit 307 can be connected to the motor vehicle 311 by wire or wirelessly, and the communication unit 307 can transmit the charging status information to the motor vehicle 311 by wire or wirelessly. Preferably, the communication unit 307 is capable of communicating with a user communication device, and the user communication device may be a mobile phone, a personal digital processing unit, a laptop computer, a personal computer, and the like. The communication unit 307 can transmit charging state information to a user's communication device wired or wirelessly, and can receive a user command from the user's communication device wiredly or wirelessly.

FIG. 4 shows a flowchart for off-peak charging according to one embodiment of the present invention. As shown in FIG. 4 , the method starts at step 400 by connecting the charging device to the vehicle and performing necessary initialization. In step 401, the charging state information is acquired, and the charging state information includes the current electric quantity, the rated electric quantity and the charging power. The battery management system is connected between the battery and the terminal control unit, which is used to improve the utilization rate of the battery, prevent the battery from overcharging and overdischarging, prolong the service life of the battery, and monitor the state of the battery.

In step 402, the off-peak charging demand is obtained, and the charging time period and/or estimated charge are calculated according to the off-peak charging demand and charging state information.

In step 403, the charging time period and/or estimated cost are displayed;

In step 404, the charging indication information is obtained;

In step 405, if the charging indication information selects off-peak charging, off-peak charging is performed on the motor vehicle; otherwise, off-peak charging is not performed.

Preferably, if the calculation and display of the charging time period and/or the estimated cost are not acceptable, the off-peak charging demand and/or immediate charging demand can be obtained repeatedly, and the off-peak charging demand and charging status can be obtained repeatedly. The information calculates the charging time period and/or the estimated cost.

Preferably, if the charging indication information does not select off-peak charging, then after off-peak charging is not performed, one or more of the following contents can also be selected according to the charging indication information: immediate charging, regular charging, valley charging charging, or the lowest valley charging.

FIG. 5 shows a flowchart for immediate charging and off-peak charging according to one embodiment of the present invention. As shown in FIG. 5 , the method starts at step 500 by connecting the charging device to the vehicle and performing necessary initialization. In step 501, the charging state information is obtained, and the charging state information includes the current electric quantity, rated electric quantity and charging power;

In step 502, the immediate charging demand and the off-peak charging demand are obtained, and the charging time period and/or estimated charge are calculated according to the immediate charging demand, the off-peak charging demand and the charging status information;

In step 503, the charging time period and/or estimated cost are displayed;

In step 504, obtain charging indication information;

In step 505, if the charging indication information indicates that immediate charging and off-peak charging are selected, the motor vehicle is charged immediately and off-peak; otherwise, immediate charging and off-peak charging are not performed.

Preferably, if the calculation and display of the charging time period and/or the estimated cost are not acceptable, the immediate charging demand and the off-peak charging demand can be repeatedly obtained, and according to the immediate charging demand, off-peak charging demand and The charge status information calculates the charging time period and/or the estimated cost.

Preferably, if the charging indication information does not select off-peak charging, then after off-peak charging is not performed, one or more of the following contents can also be selected according to the charging indication information: immediate charging, regular charging, valley charging charging, or the lowest valley charging.

FIG. 6 shows a flowchart for off-peak charging according to one embodiment of the present invention. As shown in FIG. 6 , the method starts at step 600 by connecting the charging device to the vehicle and performing necessary initialization.

Step 601, displaying charging prompt information;

Step 602, acquiring charging indication information;

Step 603, if the charging instruction information indicates that off-peak charging is selected, perform off-peak charging on the motor vehicle; otherwise, do not perform off-peak charging.

The invention has been mainly described with reference to a few embodiments. However, it is clear to a person skilled in the art that other embodiments than the invention disclosed above are equally within the scope of the invention, as defined by the appended patent claims.

Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise therein. All references to "a/the/the [means, component, etc.]" are openly construed to mean at least one instance of said means, component, etc., unless expressly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.

In the foregoing detailed description, reference was made to the accompanying drawings which form a part hereof, and in which are shown by way of example specific embodiments in which the invention may be practiced. These embodiments and certain variations of the embodiments have been described in sufficient detail to enable those skilled in the art to practice the embodiments of the invention. It is to be understood that other suitable embodiments may be utilized and logical, mechanical, chemical and electrical changes may be made without departing from the spirit or scope of the present disclosure. To avoid unnecessary detail, the description omits certain information known to those skilled in the art. Accordingly, the foregoing detailed description is not intended to be limited to the exact forms set forth herein, but rather, it is intended to cover such alternatives, modifications, and equivalents as may be reasonably included within the spirit and scope of the appended claims.

Claims (16)

1. method that is used for non-peak phase charging, said method comprises:

A. obtain charging status information, said charging status information comprises current electric quantity, specified electric quantity and charge power;

B. obtain non-peak phase charging demand, and calculate charging interval section and/or estimated charges according to non-peak phase charging demand and charging status information;

C. show charging interval section and/or estimated charges;

D. obtain the charging indication information;

If E. said charging indication information is selected the charging of non-peak phase, then motor vehicle is carried out the charging of non-peak phase; Otherwise do not carry out the charging of non-peak phase.

2. method that is used for non-peak phase charging, said method comprises:

A. obtain charging status information, said charging status information comprises current electric quantity, specified electric quantity and charge power;

B. obtain charge immediately demand and non-peak phase charging demand, and calculate charging interval section and/or estimated charges according to the demand of charging immediately, non-peak phase charging demand and charging status information;

C. show charging interval section and/or estimated charges;

D. obtain the charging indication information;

If charging immediately and the charging of non-peak phase are selected in E. said charging indication information indication, then motor vehicle is charged and the charging of non-peak phase immediately; Otherwise do not charge immediately and the charging of non-peak phase.

3. method according to claim 1 and 2 wherein also comprises in step C, if the non-peak phase charging interval section and/or the estimated charges that show are not accepted, then returns step B.

4. method according to claim 1 and 2, the wherein non-peak phase charge volume demand and/or the demand of charging immediately are: final quantity or recruitment; And the charging demand is by a kind of expression the in the following content: the percentage of operating range, battery rated capacity, the charging number of degrees, charging interval length or the electricity charge amount of money.

5. method according to claim 4, the demand of wherein charging are the charging demand imported of user or the charging demand of systemic presupposition.

6. method according to claim 1 and 2 also comprises at least one that shows in the following content: electric weight, the distance that can go before electric weight, the charging beginning when charging finishes, the distance that can go when charging finishes or the charging electricity charge when charging time started, charging concluding time, charging beginning.

7. method that is used for non-peak phase charging, said method comprises:

A. show charge prompting information;

B. obtain the charging indication information;

If the charging of non-peak phase is selected in C. said charging indication information indication, then motor vehicle is carried out the charging of non-peak phase; Otherwise, do not carry out the charging of non-peak phase.

8. according to claim 1,2 or 7 described methods, also comprise through in the following content of the cell stores in the charging device at least one: time started non-peak phase, concluding time non-peak phase, electricity price information; Perhaps pass through at least one in the following content of cell stores in the motor vehicle: non-time started peak phase, non-concluding time peak phase, electricity price information.

9. according to claim 1,2 or 7 described methods; Otherwise after not carrying out non-peak phase charging or do not charge immediately with the charging of non-peak phase after, can also select a kind of in following the charge mode according to said charging indication information: charging immediately, regularly charging, the charging of paddy phase, lowest trough charging, charging immediately and the charging of paddy phase, or charge immediately and lowest trough is charged.

10. charging device that is used for non-peak phase charging, said charging device comprises: control unit, display unit and input unit, it is characterized in that,

Control unit obtains charging status information, and said state information comprises current electric quantity, specified electric quantity and charge power; Obtain non-peak phase charging demand, and calculate non-peak phase charging interval section and/or estimated charges according to non-peak phase charging demand and charging status information; Motor vehicle is carried out the charging of non-peak phase;

Display unit shows non-peak phase charging interval section and/or estimated charges; And

Input unit obtains the charging indication information.

11. a charging device that is used for the charging of non-peak phase, said charging device comprises: control unit, display unit and input unit, it is characterized in that,

Control unit obtains charging status information, and said state information comprises current electric quantity, specified electric quantity and charge power; Obtain charge immediately demand and non-peak phase charging demand, and calculate charging interval section and/or estimated charges according to the demand of charging immediately, non-peak phase charging demand and charging status information; Motor vehicle is charged and the charging of non-peak phase immediately;

Display unit shows charging interval section and/or estimated charges; And

Input unit obtains the charging indication information.

12. according to claim 10 or 11 described charging devices, the wherein non-peak phase charge volume demand and/or the demand of charging immediately are: final quantity or recruitment; And the charging demand is by a kind of expression the in the following content: the percentage of operating range, battery rated capacity, the charging number of degrees, charging interval length or the electricity charge amount of money.

The charging demand that 13. charging device according to claim 12, the demand of wherein charging are the users to be imported or the charging demand of systemic presupposition.

14. a charging device that is used for the charging of non-peak phase, said charging device comprises: control unit, display unit and input unit, it is characterized in that,

Display unit shows charge prompting information;

Input unit obtains the charging indication information;

Control unit if the charging of non-peak phase is selected in the indication of said charging indication information, then carries out the charging of non-peak phase to motor vehicle.

15., also comprise at least one that shows in the following content: electric weight, the distance that can go before electric weight, the charging beginning when charging finishes, the distance that can go when charging finishes or the charging electricity charge when charging time started, charging concluding time, charging beginning according to described charging device in the claim 10,11 or 14.

16., also comprise through in the following content of the cell stores in the charging device at least one: time started non-peak phase, concluding time non-peak phase, electricity price information according to described charging device in the claim 10,11 or 14; Perhaps pass through at least one in the following content of cell stores in the motor vehicle: non-time started peak phase, non-concluding time peak phase, electricity price information.

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