CN118082622A - Extended range vehicle electric quantity control method and device, vehicle and storage medium - Google Patents
Extended range vehicle electric quantity control method and device, vehicle and storage medium Download PDFInfo
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Abstract
The embodiment of the invention provides a method, a device, a vehicle and a storage medium for controlling the electric quantity of an extended range vehicle, which are applied to the extended range vehicle, wherein the extended range vehicle is provided with an extended range device, a power battery and a storage battery, and the method comprises the steps of responding to a power battery electric quantity protection instruction and acquiring temperature information; determining a high-voltage charge state according to the temperature information; controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state; receiving a charging request for the storage battery based on the power battery reaching the high-voltage state of charge, the charging request including a charging voltage and a power demand voltage; determining a target voltage according to the charging voltage and the electricity demand voltage; the power battery is controlled to supply power to the storage battery based on the target voltage. According to the embodiment of the invention, the power battery and the storage battery of the vehicle can be actively supplemented according to the requirements of the user or in the scene of detecting the need of supplementing the power, so that the normal operation of the vehicle is ensured.
Description
Technical Field
The invention relates to the technical field of extended range vehicles, in particular to an extended range vehicle electric quantity control method, an extended range vehicle electric quantity device, a vehicle and a storage medium.
Background
With the development and popularization of new energy vehicles, more and more types of new energy automobiles are developed and put into daily life, and a power battery and a storage battery are respectively the energy sources of a high-voltage electric appliance and a low-voltage electric appliance of the vehicle. However, in the current extended-range vehicle, the electric quantity protection of the storage battery adopts an electric supplementing mode similar to that of a fuel vehicle, and the electric quantity protection of the power battery adopts a mode similar to that of a pure electric vehicle. The two ways of electric quantity protection are weak in correlation. Resulting in a complicated charge control scheme for both batteries in an extended range vehicle.
Disclosure of Invention
In view of the above, embodiments of the present invention have been made to provide an extended-range vehicle electric quantity control method, an extended-range vehicle electric quantity device, a vehicle, and a storage medium that overcome or at least partially solve the above-described problems.
In order to solve the above problems, in a first aspect of the present invention, an embodiment of the present invention discloses an extended range vehicle electric power control method applied to an extended range vehicle provided with an extended range device, a power battery, and a storage battery, the method comprising:
Responding to a power battery electric quantity protection instruction, and acquiring temperature information;
determining a high-voltage charge state according to the temperature information;
controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state;
Receiving a charging request for the storage battery based on the power battery reaching the high-voltage state of charge, the charging request including a charging voltage and a power demand voltage;
Determining a target voltage according to the charging voltage and the electricity demand voltage;
The power battery is controlled to supply power to the storage battery based on the target voltage.
Optionally, the temperature information includes a cell historical temperature and a predicted weather temperature; the step of determining the high-voltage charge state according to the temperature information comprises the following steps:
Determining a minimum temperature value of the historical battery cell temperature and the predicted weather temperature;
and based on the minimum temperature value, looking up a table in a preset temperature state of charge table, and determining the state of charge corresponding to the minimum temperature value as the high-voltage state of charge.
Optionally, the step of controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state includes:
Acquiring the current state of charge of the power battery;
determining a state of charge difference value of the high voltage state of charge and the current state of charge;
determining the target power generation power value based on the state of charge difference value;
and controlling the range extender to generate the generated power corresponding to the target generated power value to the power battery.
Optionally, the step of determining the target voltage according to the charging voltage and the electricity demand voltage includes:
Acquiring the current voltage of the storage battery;
Determining an upper limit voltage for charging according to the current voltage;
And determining the target voltage according to the charging voltage, the electricity demand voltage and the charging upper limit voltage.
Optionally, the step of determining the target voltage according to the magnitudes of the charging voltage, the electricity demand voltage and the charging upper limit voltage includes:
When the electricity demand voltage is not smaller than the charging voltage and not larger than the charging upper limit voltage, determining the electricity demand voltage as the target voltage;
when the charging voltage is not less than the electricity demand voltage and not greater than the charging upper limit voltage, determining the charging voltage as the target voltage;
And when the charging upper limit voltage is not smaller than the charging voltage and not larger than the electricity demand voltage, determining the electricity demand voltage as the target voltage.
Optionally, the method further comprises:
responding to a remote power-up instruction, and determining the static time length and a static current target value of the vehicle;
determining a compensation quantity according to the static current target value and the vehicle static time length;
and controlling the range extender to charge the power battery according to the electric quantity supplement.
Optionally, the method further comprises:
Acquiring the upper limit quantity of the power supply;
when the electricity supplementing quantity is not greater than the upper electricity supplementing quantity, executing the step of controlling the range extender to charge the power battery according to the electricity supplementing quantity;
And when the electricity supplementing quantity is larger than the electricity supplementing upper limit quantity, updating the electricity supplementing quantity by adopting the electricity supplementing upper limit quantity, and executing the step of controlling the range extender to charge the power battery according to the electricity supplementing quantity by using the updated electricity supplementing quantity.
In a second aspect of the invention, an embodiment of the invention discloses an extended range vehicle electric quantity control device applied to an extended range vehicle, the extended range vehicle is provided with an extended range device, a power battery and a storage battery, the device comprises:
the first acquisition module is used for responding to the power battery electric quantity protection instruction and acquiring temperature information;
the charge state determining module is used for determining a high-voltage charge state according to the temperature information;
The first control module is used for controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state;
The receiving module is used for receiving a charging request for the storage battery based on the fact that the power battery reaches the high-voltage charge state, wherein the charging request comprises a charging voltage and a power consumption demand voltage;
the target voltage determining module is used for determining target voltage according to the charging voltage and the electricity consumption demand voltage;
and the second control module is used for controlling the power battery to supply power to the storage battery based on the target voltage.
In a third aspect of the present invention, an embodiment of the present invention discloses a vehicle including a processor, a memory, and a computer program stored on the memory and capable of running on the processor, which when executed by the processor implements the extended-range vehicle power control method as described above.
In a fourth aspect of the present invention, an embodiment of the present invention discloses a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the extended-range vehicle electric quantity control method as described above.
The embodiment of the invention has the following advantages:
The embodiment of the invention responds to a power battery electric quantity protection instruction to acquire temperature information; determining a high-voltage charge state according to the temperature information; controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state; receiving a charging request for the storage battery based on the power battery reaching the high-voltage state of charge, the charging request including a charging voltage and a power demand voltage; determining a target voltage according to the charging voltage and the electricity demand voltage; the power battery is controlled to supply power to the storage battery based on the target voltage. The power supply device has the advantages that according to the requirements of a user or in a scene of detecting that the power supply is required, the power supply is actively carried out on the power battery by adopting a range extender of a range-extending vehicle based on temperature information, and when the electric quantity of the power battery is sufficient, the power supply is carried out on the storage battery based on a charging request aiming at the storage battery, so that the normal operation of the vehicle is ensured; and the two battery power supplementing modes can be linked, so that the steps of respectively adopting two different control modes to two batteries are simplified, the power battery and the storage battery can be quickly and accurately supplemented, and the advantage of the range-extended vehicle in the power battery and the storage battery power supplementing aspect is exerted.
Drawings
FIG. 1 is a flow chart of steps of an embodiment of an extended range vehicle electrical control method of the present invention;
FIG. 2 is a flowchart illustrating steps of another embodiment of an extended range vehicle electrical quantity control method according to the present invention;
FIG. 3 is a schematic diagram illustrating a control of a user end of an example of an extended range vehicle power control method according to the present invention;
FIG. 4 is a schematic diagram of a vehicle end control of an example of an extended range vehicle electric quantity control method of the present invention;
FIG. 5 is a block diagram illustrating an embodiment of an extended range vehicle power control device according to the present invention;
FIG. 6 is a block diagram of a vehicle according to an embodiment of the present invention;
fig. 7 is a block diagram of a storage medium according to an embodiment of the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1, there is shown a flowchart of steps of an embodiment of an extended-range vehicle electric quantity control method of the present invention, which is applied to an extended-range vehicle provided with an extended-range extender, a power battery, and a storage battery. The range extender can generate electric power and send the electric power to the power battery, so that the endurance mileage of the vehicle is prolonged. The power battery provides electric power to drive the motor to operate the vehicle. The battery supplies auxiliary electronics of the vehicle, such as a light, a sound system, etc., and starts the vehicle.
The range-extending vehicle electric quantity control method specifically comprises the following steps:
step 101, responding to a power battery electric quantity protection instruction, and acquiring temperature information;
In the extended-range vehicle, a plurality of control modes for controlling the power battery may be provided. Through different control modes, the electric quantity of the power battery is reasonably utilized and protected. Wherein, can set up a power battery electric quantity protection mode, through the start-up of power battery electric quantity protection mode to protect power battery's electric quantity. The user can start the power battery electric quantity protection mode in the running process of the vehicle, and can start the power battery electric quantity protection mode after the vehicle is parked.
After the power battery electric quantity protection mode is started, when the state of the vehicle is detected to need to protect the electric quantity of the power battery, a power battery electric quantity protection instruction can be generated. And responding to the power battery electric quantity protection instruction, and acquiring temperature information.
Step 102, determining a high-voltage charge state according to the temperature information;
And judging the temperature of the environment where the vehicle is located and the temperature of the power battery of the vehicle according to the temperature information, and determining the corresponding high-voltage charge state.
Step 103, controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state;
And controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state as a charging target, so as to adjust the charge state of the power battery.
Step 104, receiving a charging request for the storage battery based on the power battery reaching the high-voltage charge state, wherein the charging request comprises a charging voltage and a power consumption demand voltage;
When Cheng Duixiang power batteries are added for charging and the high-voltage charge state is reached, the electric quantity of the power batteries can meet the electric quantity protection requirement. A charge request for the battery may be received to charge the battery. Wherein the charge request includes a charge voltage and a power demand voltage.
Step 105, determining a target voltage according to the charging voltage and the electricity demand voltage;
The target voltage may be determined based on the charging voltage and the electricity demand voltage. The voltage value of the electric quantity protection achieved by the storage battery is represented by the target voltage.
And step 106, controlling the power battery to supply power to the storage battery based on the target voltage.
After the target voltage is determined, the power battery can be connected with a circuit of the storage battery based on the target voltage so as to supply power to the storage battery, and the storage battery is charged. If a direct current step-down switch can be arranged between the power battery and the storage battery, when the power battery and the storage battery need to be charged, the direct current step-down switch can be turned on, so that the power battery and the storage battery are communicated.
The embodiment of the invention responds to a power battery electric quantity protection instruction to acquire temperature information; determining a high-voltage charge state according to the temperature information; controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state; receiving a charging request for the storage battery based on the power battery reaching the high-voltage state of charge, the charging request including a charging voltage and a power demand voltage; determining a target voltage according to the charging voltage and the electricity demand voltage; the power battery is controlled to supply power to the storage battery based on the target voltage. The power supply device has the advantages that according to the requirements of a user or in a scene of detecting that the power supply is required, the power supply is actively carried out on the power battery by adopting a range extender of a range-extending vehicle based on temperature information, and when the electric quantity of the power battery is sufficient, the power supply is carried out on the storage battery based on a charging request aiming at the storage battery, so that the normal operation of the vehicle is ensured; and the two battery power supplementing modes can be linked, so that the steps of respectively adopting two different control modes to two batteries are simplified, the power battery and the storage battery can be quickly and accurately supplemented, and the advantage of the range-extended vehicle in the power battery and the storage battery power supplementing aspect is exerted.
Referring to fig. 2, there is shown a flowchart of steps of another embodiment of an extended range vehicle electric quantity control method of the present invention, which is applied to an extended range vehicle provided with an extended range extender, a power battery, and a storage battery.
Step 201, responding to a power battery electric quantity protection instruction, and acquiring temperature information;
in the implementation of the present invention, in order to protect the power battery, the vehicle may periodically check the state of the vehicle to determine whether power battery power protection is required.
When the state of the vehicle is detected to need to protect the electric quantity of the power battery, an electric quantity protection instruction of the power battery can be generated. And responding to the power battery electric quantity protection instruction, and acquiring temperature information.
Step 202, determining a high-voltage charge state according to the temperature information;
the high voltage state of charge meeting the power battery charge protection requirements may be determined based on the temperature information and based on the temperature impact.
Specifically, the temperature information comprises a historical battery cell temperature and a predicted weather temperature; the step of determining the high-voltage charge state according to the temperature information comprises the following steps: determining a minimum temperature value of the historical battery cell temperature and the predicted weather temperature; and based on the minimum temperature value, looking up a table in a preset temperature state of charge table, and determining the state of charge corresponding to the minimum temperature value as the high-voltage state of charge.
In the embodiment of the invention, the historical cell temperature can be the cell temperature of the cell at the time of starting up in the previous days. The predicted weather temperature may be a weather forecast minimum temperature for several days in the future. A minimum temperature value of the cell historical temperature and the predicted weather temperature may be determined. And the minimum temperature value is used for representing a temperature factor influencing normal use running of the whole vehicle. I.e., it can be determined that the vehicle is in use at a temperature corresponding to the minimum temperature value. Based on the minimum temperature value, a table look-up mode is adopted to look up a table in a preset temperature state-of-charge table, and the state-of-charge corresponding to the minimum temperature value is determined to be a high-voltage state-of-charge.
The preset temperature state of charge table can be measured in advance according to the applied vehicle type in a laboratory or driving record mode. The preset temperature state-of-charge table is a mapping relation table of temperature and state-of-charge table. The embodiment of the invention does not limit specific numerical values of the preset temperature charge state table.
Step 203, based on the high-voltage charge state, controlling the generated power generated by the range extender to the power battery;
and taking the high-voltage charge state as a charging target, and controlling the generated power of the range extender for charging the power battery.
Specifically, the step of controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state includes: acquiring the current state of charge of the power battery; determining a state of charge difference value of the high voltage state of charge and the current state of charge; determining the target power generation power value based on the state of charge difference value; and controlling the range extender to generate the generated power corresponding to the target generated power value to the power battery.
When controlling the generated power of the range extender for charging the power battery, the current state of charge of the power battery can be obtained first. A state of charge difference between the high voltage state of charge and the current state of charge is determined. And since the lower the temperature, the higher the state of charge for the high voltage, i.e. the lower the temperature, the more charge is needed to charge at lower temperatures.
And determining the corresponding power generation power of the state of charge difference in the power generation power of the multistage range extender as a target power generation value according to the magnitude of the state of charge difference. And then charging the power battery based on the generated power corresponding to the target generated power value as charging power generated by the range extender.
In addition, multi-level alarm levels can be set, and multi-level alarm SOC (state of charge) thresholds can be set; and when the power battery rises to a certain value, the power battery is stopped to alarm or to stop alarm. And a receipt interval is set, so that the alarm signal jumping caused by the instability of the SOC value is avoided when alarm critical points of different grades are provided.
Further, in order to prevent the high voltage of the power battery from supplementing electricity to the low-voltage battery, the electric quantity of the power battery is continuously reduced, and the power battery is deficient, so that the risk of being unable to drive is brought. The power battery may be stopped from powering the battery. Specifically, when the current state of charge is lower than a preset state of charge threshold, the power battery is controlled to stop supplying power to the storage battery. The preset state of charge threshold may be determined according to the type of the power battery, which is not limited in the embodiment of the present invention.
Step 204, receiving a charging request for the storage battery based on the power battery reaching the high-voltage charge state, wherein the charging request comprises a charging voltage and a power consumption demand voltage;
After the power battery reaches a high-voltage charge state, a charging request for the storage battery can be received to charge the storage battery, wherein the charging request comprises a charging voltage and a power consumption demand voltage.
Step 205, determining a target voltage according to the charging voltage and the electricity demand voltage;
The target voltage can be determined according to the charging voltage and the electricity demand voltage so as to control the storage battery to charge.
Specifically, the step of determining the target voltage according to the charging voltage and the electricity demand voltage includes: acquiring the current voltage of the storage battery; determining an upper limit voltage for charging according to the current voltage; and determining the target voltage according to the charging voltage, the electricity demand voltage and the charging upper limit voltage.
In practical application, the current voltage of the storage battery can be obtained to obtain the current state of the storage battery. The upper limit voltage for charging is determined based on the difference between the current voltage and the rated voltage specified by the battery. And determining the target voltage based on the magnitude relation among the charging voltage, the electricity demand voltage and the charging upper limit voltage.
Further, the step of determining the target voltage according to the charging voltage, the electricity demand voltage and the charging upper limit voltage includes: when the electricity demand voltage is not smaller than the charging voltage and not larger than the charging upper limit voltage, determining the electricity demand voltage as the target voltage; when the charging voltage is not less than the electricity demand voltage and not greater than the charging upper limit voltage, determining the charging voltage as the target voltage; and when the charging upper limit voltage is not smaller than the charging voltage and not larger than the electricity demand voltage, determining the electricity demand voltage as the target voltage.
Such as: the charge voltage in the charge request is LBMS _ ReqChrgU. The electricity demand voltage is LVEM _ SysMinVolt; the charge upper limit voltage is LVEM _ BatMaxVolt; the target voltage is LVEM _ DCDCDesVolt.
When LBMS _ ReqChrgU (charging voltage) is equal to or less than LVEM _ SysMinVolt (electricity consumption demand voltage) is equal to or less than LVEM _ BatMaxVolt (charging upper limit voltage), LVEM _ DCDCDesVolt (target voltage) = LVEM _ SysMinVolt (electricity consumption demand voltage);
When LVEM _ SysMinVolt (electricity demand voltage) +. LBMS _ ReqChrgU (charging voltage) +. LVEM _ BatMaxVolt (charging upper limit voltage), LVEM _ DCDCDesVolt (target voltage) = LBMS _ ReqChrgU (charging voltage);
when LBMS _ ReqChrgU (charging voltage) +. LVEM _ BatMaxVolt (charging upper limit voltage) +. LVEM _ SysMinVolt (electricity consumption demand voltage), LVEM _ DCDCDesVolt (target voltage) = LVEM _ SysMinVolt (electricity consumption demand voltage).
Step 206, controlling the power battery to supply power to the storage battery based on the target voltage;
after the target voltage is obtained, the high voltage of the power battery can be reduced to the low voltage corresponding to the storage battery based on the target voltage, and the storage battery is powered so as to be flushed to the target voltage.
In addition, in order to protect the storage battery, the charging of the storage battery can be actively started when the charge state of the storage battery is lower than 50%. If the power supply fails, a low-power consumption mode of the storage battery can be performed, and the frequency of using the storage battery is reduced. At the same time, the user can be notified through various notification modes, and the related unnecessary low-voltage system is subjected to deep dormancy. When the state of charge of the storage battery is lower than 50%, the whole vehicle can be dormant when the power battery cannot be charged, a user and a corresponding whole vehicle awakening mode are reminded, and after the whole vehicle is powered off, the battery management system can be awakened through the tail gate micro switch to supply power to the whole vehicle.
Step 207, determining a vehicle stationary time length and a stationary current target value in response to the remote power-up instruction;
When the user needs to perform remote power-up, a remote power-up instruction can be sent to the extended-range vehicle through an APP (application program) and the like. The remote power supply instruction is used for indicating that the vehicle starts the range extender to charge and supply energy to the power battery in the state of no person entering. The vehicle stationary duration and the stationary current target value may be determined in response to a remote power replenishment command. The stationary duration of a vehicle refers to the time that the vehicle has been parked and may be expressed in days. The quiescent current target value is then determined based on the type of battery.
Step 208, determining a compensation amount according to the static current target value and the static time length of the vehicle;
the electric energy required by the vehicle when the vehicle is parked can be determined according to the static current target value and the vehicle stationary time length, and then the corresponding electric quantity is determined to be the electric quantity.
Specifically, the determination of the amount of charge may be calculated by the following formula:
E1＝U*I*(24*T)/1000*(A-B)*N
Wherein E1 is the electricity supplementing quantity, U is the target voltage, A is the percentage of the actual capacity and rated capacity of the storage battery (the empirical value is taken to be 95%), B is the percentage of the lowest actual electric quantity and rated electric quantity of the storage battery for starting the whole vehicle, T is the storage and transportation time, D is the self-loss rate of the storage battery in one day (for example, the lithium battery is 0.02%), and N is the electricity supplementing efficiency of the power battery for the storage battery.
And step 209, controlling the range extender to charge the power battery according to the charge quantity.
After the electric quantity is obtained, the power required to be generated by the range extender can be determined based on the electric quantity, and then the range extender is controlled to output corresponding power to charge the power battery.
In addition, because the remote start range extender supplements electricity, the operation of the range extender can generate heat, exhaust gas is discharged, and when the surrounding state, environment and tail gas of the vehicle are uncertain, the upper limit of charging in one day can be set, so that dangerous behaviors caused by the remote start range extender supplements electricity are prevented.
Specifically, the upper limit of the power supply is obtained; when the electricity supplementing quantity is not greater than the upper electricity supplementing quantity, executing the step of controlling the range extender to charge the power battery according to the electricity supplementing quantity; and when the electricity supplementing quantity is larger than the electricity supplementing upper limit quantity, updating the electricity supplementing quantity by adopting the electricity supplementing upper limit quantity, and executing the step of controlling the range extender to charge the power battery according to the electricity supplementing quantity by using the updated electricity supplementing quantity.
In practical application, the electric charge quantity and the upper limit quantity of the electric charge can be compared, and a smaller energy value is selected as the basis of charging, namely, when the electric charge quantity is not greater than the upper limit quantity of the electric charge, the electric charge quantity is adopted for charging. And when the upper limit of the electricity compensation is smaller than the electricity compensation quantity, the upper limit of the electricity compensation is adopted for charging.
Further, the upper limit of the power supply may be determined based on the Cheng Qishan times of the start-up duration and the upper limit of the power:
E2＝P*T/60；
E2 is the upper limit of the power supply, T is the single starting time, and P is the upper limit of the power.
The embodiment of the invention responds to a power battery electric quantity protection instruction to acquire temperature information; determining a high-voltage charge state according to the temperature information; controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state; receiving a charging request for the storage battery based on the power battery reaching the high-voltage state of charge, the charging request including a charging voltage and a power demand voltage; determining a target voltage according to the charging voltage and the electricity demand voltage; the power battery is controlled to supply power to the storage battery based on the target voltage. The power supply device has the advantages that according to the requirements of a user or in a scene of detecting that the power supply is required, the power supply is actively carried out on the power battery by adopting a range extender of a range-extending vehicle based on temperature information, and when the electric quantity of the power battery is sufficient, the power supply is carried out on the storage battery based on a charging request aiming at the storage battery, so that the normal operation of the vehicle is ensured; and the two battery power supplementing modes can be linked, so that the steps of respectively adopting two different control modes to two batteries are simplified, the power battery and the storage battery can be quickly and accurately supplemented, and the advantage of the range-extended vehicle in the power battery and the storage battery power supplementing aspect is exerted. And the remote electricity supplementing request sent by the user is used for supplementing electricity in proper electricity supplementing quantity based on static time and temperature.
In order to make the implementation of the invention clear to a person skilled in the art, the following description is given with an example of a vehicle system for an application:
Referring to fig. 3, a connection between the mobile terminal and the vehicle end is established at a far end, and signals are uploaded and issued; referring to fig. 4, a user side and TSP (vehicle networking), TBOX (vehicle networking terminal), a power battery, a storage battery, DCDC (step-down converter), a vehicle control unit (VDC), GCU (range extender generator controller), CDU (display unit), LBMS (battery management system), a control signal of a range extender system, and electric charge are established at a vehicle side.
The mobile phone APP can start the soft switch in a range-extending way, and after clicking the soft switch, the range extender is remotely started to supplement electricity; after the user confirms for the second time, issuing a remote range-extending starting instruction; and the soft switch displays the range increase start, clicks the soft switch again, issues a remote range increase closing instruction, and carries out relevant prompt according to the feedback of the TBOX.
The TSP can receive a remote extended range starting/closing instruction of the APP and forward the instruction to the TBOX; or the remote control range-extending running state of the TBOX is received and forwarded to the APP.
The TBOX can receive a Remote range-extending starting instruction, execute Remote control condition judgment, wake up a VIU (vehicle interface) and request to set a user mode as Remote (Remote control model); after the high-voltage power-on is successful, a remote range-extending starting instruction is issued to the VDC; reporting the range-extending running state and related prompt information to the vehicle cloud; the TBOX is timed for 20min (minutes), or the extended range stop instruction is received, or the extended range running state is non-running, and the TBOX finishes the remote extended range starting function.
The VDC receives the remote control range-extending starting request, sets the state as Ready, requests the range-extending starting and feeds back the range-extending running state.
VIU3 is responsible for waking up EP/EVR (range extender power control) network segments by NM (network management) messages, and waking up EMS (enhancer management system) by hard wires; the user mode is set to Remote.
The GCU can receive a remote start range-extending supplementary electric signal; and controlling the supplementing electric power, the supplementing electric torque and the rotating speed.
The CDU may receive a low voltage supply signal.
LBMS can monitor battery health; and sending out a low-voltage power-up request.
It should be noted that, for simplicity of description, the method embodiments are shown as a series of acts, but it should be understood by those skilled in the art that the embodiments are not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred embodiments, and that the acts are not necessarily required by the embodiments of the invention.
Referring to fig. 5, there is shown a block diagram of an embodiment of an extended range vehicle power control device of the present invention, which is applied to an extended range vehicle provided with an extended range device, a power battery and a storage battery, the extended range vehicle power control device may include the following modules:
a first obtaining module 501, configured to obtain temperature information in response to a power battery power protection instruction;
The state of charge determining module 502 is configured to determine a high-voltage state of charge according to the temperature information;
A first control module 503, configured to control, based on the high-voltage state of charge, the generated power generated by the range extender to the power battery;
A receiving module 504 that receives a charge request for the battery based on the power battery reaching the high voltage state of charge, the charge request including a charge voltage and a power demand voltage;
a target voltage determining module 505, configured to determine a target voltage according to the charging voltage and the electricity demand voltage;
A second control module 506 for controlling the power cell to supply power to the battery based on the target voltage.
In an alternative embodiment of the invention, the temperature information includes a cell historical temperature and a predicted weather temperature; the state of charge determination module 502 includes:
a minimum temperature value determination sub-module for determining a minimum temperature value of the historical battery cell temperature and the predicted weather temperature;
And the state of charge determining submodule is used for looking up a table in a preset temperature state of charge table based on the minimum temperature value, and determining the state of charge corresponding to the minimum temperature value as the high-voltage state of charge.
In an alternative embodiment of the present invention, the first control module 503 includes:
the first acquisition submodule is used for acquiring the current state of charge of the power battery;
A state of charge difference determination submodule for determining a state of charge difference of the high-voltage state of charge and the current state of charge;
A target power generation value sub-module for determining the target power generation value based on the state of charge difference value;
And the first control sub-module is used for controlling the range extender to send out the generated power corresponding to the target generated power value to the power battery.
In an alternative embodiment of the invention, the apparatus further comprises:
And the stopping module is used for controlling the power battery to stop supplying power to the storage battery when the current state of charge is lower than a preset state of charge threshold value.
In an alternative embodiment of the present invention, the target voltage determining module 505 includes:
the second acquisition submodule is used for acquiring the current voltage of the storage battery;
The charging upper limit voltage determining submodule is used for determining a charging upper limit voltage according to the current voltage;
and the target voltage determining sub-module is used for determining the target voltage according to the charging voltage, the electricity consumption demand voltage and the charging upper limit voltage.
In an alternative embodiment of the invention, the target voltage determination submodule includes:
a first target voltage determining unit configured to determine the electricity demand voltage as the target voltage when the electricity demand voltage is not less than the charging voltage and not greater than the charging upper limit voltage;
a second target voltage determining unit configured to determine the charging voltage as the target voltage when the charging voltage is not less than the electricity demand voltage and not greater than the charging upper limit voltage;
And a third target voltage determining unit configured to determine the electricity demand voltage as the target voltage when the charging upper limit voltage is not less than the charging voltage and not greater than the electricity demand voltage.
In an alternative embodiment of the invention, the apparatus further comprises:
The static determining module is used for responding to the remote power-up instruction and determining the static time length and the static current target value of the vehicle;
the compensation quantity determining module is used for determining the compensation quantity according to the static current target value and the vehicle static time length;
And the remote power supply module is used for controlling the range extender to charge the power battery according to the power supply quantity.
In an alternative embodiment of the invention, the apparatus further comprises:
the third acquisition module is used for acquiring the upper limit quantity of the power supply;
the first execution step is used for executing the step of controlling the range extender to charge the power battery according to the electric charge quantity when the electric charge quantity is not greater than the upper electric charge quantity;
and a second execution step, wherein when the electricity supplementing quantity is larger than the electricity supplementing upper limit quantity, the electricity supplementing upper limit quantity is adopted to update the electricity supplementing quantity, and the updated electricity supplementing quantity is used for executing the step of controlling the range extender to charge the power battery according to the electricity supplementing quantity.
For the device embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference is made to the description of the method embodiments for relevant points.
Referring to fig. 6, an embodiment of the present invention also provides a vehicle including:
A processor 601 and a storage medium 602, said storage medium 602 storing a computer program executable by said processor 601, said processor 601 executing said computer program when the vehicle is running, to implement an extended range vehicle power control method according to any one of the embodiments of the present invention.
The extended range vehicle electric quantity control method is applied to an extended range vehicle, the extended range vehicle is provided with an extended range device, a power battery and a storage battery, and the method comprises the following steps:
Responding to a power battery electric quantity protection instruction, and acquiring temperature information;
determining a high-voltage charge state according to the temperature information;
controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state;
Receiving a charging request for the storage battery based on the power battery reaching the high-voltage state of charge, the charging request including a charging voltage and a power demand voltage;
Determining a target voltage according to the charging voltage and the electricity demand voltage;
The power battery is controlled to supply power to the storage battery based on the target voltage.
Optionally, the temperature information includes a cell historical temperature and a predicted weather temperature; the step of determining the high-voltage charge state according to the temperature information comprises the following steps:
Determining a minimum temperature value of the historical battery cell temperature and the predicted weather temperature;
and based on the minimum temperature value, looking up a table in a preset temperature state of charge table, and determining the state of charge corresponding to the minimum temperature value as the high-voltage state of charge.
Optionally, the step of controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state includes:
Acquiring the current state of charge of the power battery;
determining a state of charge difference value of the high voltage state of charge and the current state of charge;
determining the target power generation power value based on the state of charge difference value;
and controlling the range extender to generate the generated power corresponding to the target generated power value to the power battery.
Optionally, the method further comprises:
And when the current state of charge is lower than a preset state of charge threshold, controlling the power battery to stop supplying power to the storage battery.
Optionally, the step of determining the target voltage according to the charging voltage and the electricity demand voltage includes:
Acquiring the current voltage of the storage battery;
Determining an upper limit voltage for charging according to the current voltage;
And determining the target voltage according to the charging voltage, the electricity demand voltage and the charging upper limit voltage.
Optionally, the step of determining the target voltage according to the magnitudes of the charging voltage, the electricity demand voltage and the charging upper limit voltage includes:
When the electricity demand voltage is not smaller than the charging voltage and not larger than the charging upper limit voltage, determining the electricity demand voltage as the target voltage;
when the charging voltage is not less than the electricity demand voltage and not greater than the charging upper limit voltage, determining the charging voltage as the target voltage;
And when the charging upper limit voltage is not smaller than the charging voltage and not larger than the electricity demand voltage, determining the electricity demand voltage as the target voltage.
Optionally, the method further comprises:
responding to a remote power-up instruction, and determining the static time length and a static current target value of the vehicle;
determining a compensation quantity according to the static current target value and the vehicle static time length;
and controlling the range extender to charge the power battery according to the electric quantity supplement.
Optionally, the method further comprises:
Acquiring the upper limit quantity of the power supply;
when the electricity supplementing quantity is not greater than the upper electricity supplementing quantity, executing the step of controlling the range extender to charge the power battery according to the electricity supplementing quantity;
And when the electricity supplementing quantity is larger than the electricity supplementing upper limit quantity, updating the electricity supplementing quantity by adopting the electricity supplementing upper limit quantity, and executing the step of controlling the range extender to charge the power battery according to the electricity supplementing quantity by using the updated electricity supplementing quantity.
The memory may include a random access memory (Random Access Memory, abbreviated as RAM) or a non-volatile memory (non-volatile memory), such as at least one disk memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.
The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, abbreviated as CPU), a network processor (Network Processor, abbreviated as NP), etc.; but may also be a digital signal processor (DIGITAL SIGNAL Processing, DSP), application Specific Integrated Circuit (ASIC), field-Programmable gate array (FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components.
Referring to fig. 7, an embodiment of the present invention further provides a computer readable storage medium 701, where the storage medium 701 stores a computer program, and the computer program when executed by a processor performs a method for controlling an electric quantity of an extended-range vehicle according to any one of the embodiments of the present invention.
The extended range vehicle electric quantity control method is applied to an extended range vehicle, the extended range vehicle is provided with an extended range device, a power battery and a storage battery, and the method comprises the following steps:
Responding to a power battery electric quantity protection instruction, and acquiring temperature information;
determining a high-voltage charge state according to the temperature information;
controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state;
Receiving a charging request for the storage battery based on the power battery reaching the high-voltage state of charge, the charging request including a charging voltage and a power demand voltage;
Determining a target voltage according to the charging voltage and the electricity demand voltage;
The power battery is controlled to supply power to the storage battery based on the target voltage.
Optionally, the temperature information includes a cell historical temperature and a predicted weather temperature; the step of determining the high-voltage charge state according to the temperature information comprises the following steps:
Determining a minimum temperature value of the historical battery cell temperature and the predicted weather temperature;
and based on the minimum temperature value, looking up a table in a preset temperature state of charge table, and determining the state of charge corresponding to the minimum temperature value as the high-voltage state of charge.
Optionally, the step of controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state includes:
Acquiring the current state of charge of the power battery;
determining a state of charge difference value of the high voltage state of charge and the current state of charge;
determining the target power generation power value based on the state of charge difference value;
and controlling the range extender to generate the generated power corresponding to the target generated power value to the power battery.
Optionally, the method further comprises:
And when the current state of charge is lower than a preset state of charge threshold, controlling the power battery to stop supplying power to the storage battery.
Optionally, the step of determining the target voltage according to the charging voltage and the electricity demand voltage includes:
Acquiring the current voltage of the storage battery;
Determining an upper limit voltage for charging according to the current voltage;
And determining the target voltage according to the charging voltage, the electricity demand voltage and the charging upper limit voltage.
Optionally, the step of determining the target voltage according to the magnitudes of the charging voltage, the electricity demand voltage and the charging upper limit voltage includes:
When the electricity demand voltage is not smaller than the charging voltage and not larger than the charging upper limit voltage, determining the electricity demand voltage as the target voltage;
when the charging voltage is not less than the electricity demand voltage and not greater than the charging upper limit voltage, determining the charging voltage as the target voltage;
And when the charging upper limit voltage is not smaller than the charging voltage and not larger than the electricity demand voltage, determining the electricity demand voltage as the target voltage.
Optionally, the method further comprises:
responding to a remote power-up instruction, and determining the static time length and a static current target value of the vehicle;
determining a compensation quantity according to the static current target value and the vehicle static time length;
and controlling the range extender to charge the power battery according to the electric quantity supplement.
Optionally, the method further comprises:
Acquiring the upper limit quantity of the power supply;
when the electricity supplementing quantity is not greater than the upper electricity supplementing quantity, executing the step of controlling the range extender to charge the power battery according to the electricity supplementing quantity;
And when the electricity supplementing quantity is larger than the electricity supplementing upper limit quantity, updating the electricity supplementing quantity by adopting the electricity supplementing upper limit quantity, and executing the step of controlling the range extender to charge the power battery according to the electricity supplementing quantity by using the updated electricity supplementing quantity.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
It will be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the invention may take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or terminal device that comprises the element.
The foregoing has described in detail a method for controlling power consumption of an extended range vehicle, a power consumption device of an extended range vehicle, a vehicle and a storage medium, and specific examples have been used herein to illustrate the principles and embodiments of the present invention, and the above examples are only for aiding in understanding the method and core idea of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (10)
1. An extended range vehicle electric quantity control method, characterized by being applied to an extended range vehicle provided with an extended range device, a power battery and a storage battery, comprising:
Responding to a power battery electric quantity protection instruction, and acquiring temperature information;
determining a high-voltage charge state according to the temperature information;
controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state;
Receiving a charging request for the storage battery based on the power battery reaching the high-voltage state of charge, the charging request including a charging voltage and a power demand voltage;
Determining a target voltage according to the charging voltage and the electricity demand voltage;
The power battery is controlled to supply power to the storage battery based on the target voltage.
2. The method of claim 1, wherein the temperature information includes a cell historical temperature and a predicted weather temperature; the step of determining the high-voltage charge state according to the temperature information comprises the following steps:
Determining a minimum temperature value of the historical battery cell temperature and the predicted weather temperature;
and based on the minimum temperature value, looking up a table in a preset temperature state of charge table, and determining the state of charge corresponding to the minimum temperature value as the high-voltage state of charge.
3. The method of claim 1, wherein the step of controlling the generated power generated by the range extender to the power cell based on the high voltage state of charge comprises:
Acquiring the current state of charge of the power battery;
determining a state of charge difference value of the high voltage state of charge and the current state of charge;
determining the target power generation power value based on the state of charge difference value;
and controlling the range extender to generate the generated power corresponding to the target generated power value to the power battery.
4. The method of claim 1, wherein the step of determining a target voltage from the charging voltage and the electricity demand voltage comprises:
Acquiring the current voltage of the storage battery;
Determining an upper limit voltage for charging according to the current voltage;
And determining the target voltage according to the charging voltage, the electricity demand voltage and the charging upper limit voltage.
5. The method of claim 4, wherein the step of determining the target voltage in accordance with the magnitudes of the charging voltage, the electricity demand voltage, and the upper charging limit voltage comprises:
When the electricity demand voltage is not smaller than the charging voltage and not larger than the charging upper limit voltage, determining the electricity demand voltage as the target voltage;
when the charging voltage is not less than the electricity demand voltage and not greater than the charging upper limit voltage, determining the charging voltage as the target voltage;
And when the charging upper limit voltage is not smaller than the charging voltage and not larger than the electricity demand voltage, determining the electricity demand voltage as the target voltage.
6. The method according to claim 1, wherein the method further comprises:
responding to a remote power-up instruction, and determining the static time length and a static current target value of the vehicle;
determining a compensation quantity according to the static current target value and the vehicle static time length;
and controlling the range extender to charge the power battery according to the electric quantity supplement.
7. The method of claim 6, wherein the method further comprises:
Acquiring the upper limit quantity of the power supply;
when the electricity supplementing quantity is not greater than the upper electricity supplementing quantity, executing the step of controlling the range extender to charge the power battery according to the electricity supplementing quantity;
And when the electricity supplementing quantity is larger than the electricity supplementing upper limit quantity, updating the electricity supplementing quantity by adopting the electricity supplementing upper limit quantity, and executing the step of controlling the range extender to charge the power battery according to the electricity supplementing quantity by using the updated electricity supplementing quantity.
8. An extended range vehicle power control apparatus, applied to an extended range vehicle provided with an extended range extender, a power battery, and a storage battery, comprising:
the first acquisition module is used for responding to the power battery electric quantity protection instruction and acquiring temperature information;
the charge state determining module is used for determining a high-voltage charge state according to the temperature information;
The first control module is used for controlling the generated power generated by the range extender to the power battery based on the high-voltage charge state;
The receiving module is used for receiving a charging request for the storage battery based on the fact that the power battery reaches the high-voltage charge state, wherein the charging request comprises a charging voltage and a power consumption demand voltage;
the target voltage determining module is used for determining target voltage according to the charging voltage and the electricity consumption demand voltage;
and the second control module is used for controlling the power battery to supply power to the storage battery based on the target voltage.
9. A vehicle comprising a processor, a memory and a computer program stored on the memory and operable on the processor, the computer program when executed by the processor implementing the steps of the extended range vehicle charge control method of any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the extended-range vehicle charge control method according to any one of claims 1 to 7.
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