CN110979210B - Vehicle power supply system configuration method and device - Google Patents
Vehicle power supply system configuration method and device Download PDFInfo
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- CN110979210B CN110979210B CN201911301384.XA CN201911301384A CN110979210B CN 110979210 B CN110979210 B CN 110979210B CN 201911301384 A CN201911301384 A CN 201911301384A CN 110979210 B CN110979210 B CN 110979210B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/0307—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for using generators driven by a machine different from the vehicle motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a method and a device for configuring a whole vehicle power supply system, wherein the method comprises the steps of obtaining configured parameters of electronic devices in a target vehicle; and calculating to obtain a required value of the unconfigured parameter of at least one electronic device in the whole vehicle power supply system according to the configured parameter of the electronic device in the target vehicle, wherein the required value of the unconfigured parameter of the at least one electronic device comprises at least one of the minimum power of a starter, the minimum capacity of a storage battery, the maximum low-temperature resistance value of the storage battery and the minimum value of the average value of the output current of the generator, and further selecting the starter, the storage battery and/or the generator which meet the requirement. According to the invention, through forward configuration, a finished automobile power supply system meeting the vehicle running requirements can be obtained only through analysis and bench test, and reverse pushing of the configuration of other automobile types is not needed, so that the configuration and matching degree of the finished automobile power supply system are optimized, the configuration time is shortened, and the configuration cost is reduced.
Description
Technical Field
The invention relates to the technical field of vehicle development, in particular to a vehicle power supply system configuration method and device.
Background
The whole vehicle power supply system comprises a generator, a storage battery, a starter and the like. At present, the configuration of a whole vehicle power supply system is to select a whole vehicle power supply system used by similar vehicle types, and after a vehicle is manufactured, unreasonable places in the whole vehicle power supply system are adjusted through a test verification mode, so that the time is long, and the cost is high.
Disclosure of Invention
In view of this, the present invention provides a method and an apparatus for configuring a power system of a vehicle, so as to improve the matching between the power system of the vehicle and the vehicle, shorten the configuration time, and reduce the configuration cost.
In order to achieve the above object, the following solutions are proposed:
in a first aspect, the present invention provides a method for configuring a power supply system of a vehicle, including:
acquiring configured parameters of an electronic device in a target vehicle;
calculating to obtain a required value of an unconfigured parameter of at least one electronic device in the finished automobile power supply system according to the configured parameter, wherein the required value of the unconfigured parameter of the at least one electronic device comprises: at least one of a minimum power of the starter, a minimum capacity of the battery, a maximum low temperature resistance value of the battery, and a minimum value of an average value of output currents of the generator.
Optionally, the calculating, according to the configured parameter, a required value of an unconfigured parameter of at least one electronic device in the vehicle power system includes:
calculating the starting power of the engine according to the starting torque and the starting rotating speed of the engine;
and calculating the minimum power of the starter according to the transmission efficiency between the starter and the engine in the finished automobile power supply system and the starting power.
Optionally, the calculating, according to the configured parameter, a required value of an unconfigured parameter of at least one electronic device in the vehicle power system includes:
calculating to obtain the minimum capacity of the storage battery according to the quiescent current of the whole vehicle controller, the self-discharge current of the storage battery in the whole vehicle power supply system, the resting time target of the whole vehicle and the state of charge variation of the storage battery;
and calculating to obtain the maximum low-temperature resistance value of the storage battery according to the open-circuit voltage of the storage battery in the target low-temperature environment, the loop voltage drop of the starting system, the minimum voltage requirement of the starter, the starting current and the sum of all load currents in the starting stage of the whole vehicle.
Optionally, the calculating, according to the configured parameter, a required value of an unconfigured parameter of at least one electronic device in the vehicle power system includes:
respectively counting to obtain the average working current of the load under the idle working condition and the running working condition according to the configured parameters;
determining the minimum value of the average value of the first output current of the generator in the finished automobile power supply system as the average working current of the load under the running working condition, and determining the minimum value of the average value of the second output current of the generator as the average working current of the load under the idling working condition;
the first output current average value is the output current average value of the generator under the running working condition, and the second output current average value is the output current average value of the generator under the idling working condition.
Optionally, the minimum value of the average value of the second output current of the generator is 1.1 times of the average working current of the load under the idle condition;
the maximum value of the average value of the second output current of the generator is 1.5 times of the average working current of the load under the idling working condition.
In a second aspect, the present invention provides a device for configuring a power system of a whole vehicle, including:
an acquisition unit for acquiring configured parameters of an electronic device in a target vehicle;
a configuration unit, configured to calculate a required value of an unconfigured parameter of at least one electronic device in the vehicle power system according to the configured parameter, where the required value of the unconfigured parameter of the at least one electronic device includes: at least one of a minimum power of the starter, a minimum capacity of the battery, a maximum low temperature resistance value of the battery, and a minimum value of an average value of output currents of the generator.
Optionally, the configuration unit includes a starter configuration subunit, and the starter configuration subunit is specifically configured to:
calculating the starting power of the engine according to the starting torque and the starting rotating speed of the engine;
and calculating the minimum power of the starter according to the transmission efficiency between the starter and the engine in the finished automobile power supply system and the starting power.
Optionally, the configuration unit includes a storage battery configuration subunit, and the storage battery configuration subunit is specifically configured to:
calculating to obtain the minimum capacity of the storage battery according to the quiescent current of the whole vehicle controller, the self-discharge current of the storage battery in the whole vehicle power supply system, the resting time target of the whole vehicle and the state of charge variation of the storage battery;
and calculating to obtain the maximum low-temperature resistance value of the storage battery according to the open-circuit voltage of the storage battery in the target low-temperature environment, the loop voltage drop of the starting system, the minimum voltage requirement of the starter, the starting current and the sum of all load currents in the starting stage of the whole vehicle.
Optionally, the configuration unit includes a generator configuration subunit, and the generator configuration subunit is specifically configured to:
respectively counting to obtain the average working current of the load under the idle working condition and the running working condition according to the configured parameters;
determining the minimum value of the average value of the first output current of the generator in the finished automobile power supply system as the average working current of the load under the running working condition, and determining the minimum value of the average value of the second output current of the generator as the average working current of the load under the idling working condition;
the first output current average value is the output current average value of the generator under the running working condition, and the second output current average value is the output current average value of the generator under the idling working condition.
Optionally, the minimum value of the average value of the second output current of the generator is 1.1 times of the average working current of the load under the idle condition;
the maximum value of the average value of the second output current of the generator is 1.5 times of the average working current of the load under the idling working condition.
Compared with the prior art, the technical scheme of the invention has the following advantages:
the technical scheme provides a method and a device for configuring a whole vehicle power supply system, wherein the method comprises the steps of obtaining configured parameters of electronic devices in a target vehicle; and calculating to obtain a required value of the unconfigured parameter of at least one electronic device in the whole vehicle power supply system according to the configured parameter of the electronic device in the target vehicle, wherein the required value of the unconfigured parameter of the at least one electronic device comprises at least one of the minimum power of a starter, the minimum capacity of a storage battery, the maximum low-temperature resistance value of the storage battery and the minimum value of the average value of the output current of the generator, and further selecting the starter, the storage battery and/or the generator which meet the requirement. According to the invention, through forward configuration, a finished automobile power supply system meeting the vehicle running requirements can be obtained only through analysis and bench test, and reverse pushing of the configuration of other automobile types is not needed, so that the configuration and matching degree of the finished automobile power supply system are optimized, the configuration time is shortened, and the configuration cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a vehicle power system configuration method according to an embodiment of the present invention;
fig. 2 is a flowchart of a configuration method of a starter according to an embodiment of the present invention;
fig. 3 is a flowchart of a configuration method of a storage battery according to an embodiment of the present invention;
fig. 4 is a flowchart of a configuration method of a generator according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a vehicle power system configuration device according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a vehicle power supply system configuration device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
At present, the configuration of a whole vehicle power supply system is to select a whole vehicle power supply system used by similar vehicle types, and after a vehicle is manufactured, unreasonable places in the whole vehicle power supply system are adjusted through a test verification mode, so that the time is long, and the cost is high. In order to solve the problem, the invention provides a method for configuring a power supply system of a whole vehicle, which is shown in fig. 1 and comprises the following steps:
s11: the configured parameters of the electronic devices in the target vehicle are obtained.
Configuration parameters of some electronic devices related to a whole vehicle power supply system in a target vehicle are determined; the configured parameters of the electronic device are the determined configuration parameters of the electronic device. The core idea of the invention is to calculate the demand value of the unconfigured parameters of the electronic devices in the whole vehicle power supply system through the determined configuration parameters.
S12: and calculating to obtain a required value of the unconfigured parameter of at least one electronic device in the whole vehicle power supply system according to the configured parameter of the electronic device in the target vehicle.
In this embodiment, the at least one electronic device in the vehicle power supply system refers to at least one of a battery, a starter, and a generator. The unconfigured parameters of the electronic device are the unconfirmed configuration parameters of the electronic device. The demand values for the unconfigured parameters of the at least one electronic device include: at least one of a minimum power of the starter, a minimum capacity of the battery, a maximum low temperature resistance value of the battery, and a minimum value of an average value of output currents of the generator
The embodiment provides the finished automobile power system configuration method, through forward configuration, a finished automobile power system meeting the vehicle running requirements can be obtained only through analysis and bench test, reverse pushing of configuration of other automobile types is not needed, configuration and matching degree of the finished automobile power system are optimized, configuration time is shortened, and configuration cost is reduced.
Referring to fig. 2, a flowchart of a starter configuring method according to this embodiment is provided. The method comprises the following steps:
s21: and calculating the starting power of the engine according to the starting torque and the starting rotating speed of the engine.
The formula for calculating the starting power of the engine is as follows:
in the formula, PCsRepresents the starting power of the engine and has the unit of W; t isCsRepresents the starting torque of the engine in Nm; n isCsRepresenting the starting speed of the engine in rpm.
S22: and calculating the minimum power of the starter according to the transmission efficiency between the starter and the engine and the starting power of the engine.
The formula for calculating the minimum power of the starter is as follows:
in the formula, PStarterRepresents the minimum power of the starter, and η represents the transmission efficiency between the starter and the transmitter. I.e. to choose a power greater than the minimum power PStarterThe starter of (1).
Referring to fig. 3, a flowchart of a configuration method of a storage battery according to this embodiment is provided. The method comprises the following steps:
s31: and calculating to obtain the minimum capacity of the storage battery according to the quiescent current of the vehicle controller, the self-discharge current of the storage battery, the resting time target of the vehicle and the state of charge variation of the storage battery.
The formula for calculating the minimum capacity of the battery is as follows:
wherein C represents the minimum capacity of the storage battery and has the unit of Ah; i isDIndicating quiescent current of vehicle control unitThe bit is A; i isBRepresents the self-discharge current of the storage battery, and the unit is A; t represents the static time target of the whole vehicle, and the unit is hour; Δ SOC represents the change in state of charge of the battery, specifically the change between the state of charge of the battery when the vehicle is turned off and the minimum state of charge of the battery, which in one embodiment is set to 80% when the vehicle is turned off and 40% when the vehicle is turned off.
S32: and calculating to obtain the maximum low-temperature resistance value of the storage battery according to the open-circuit voltage of the storage battery in the target low-temperature environment, the loop voltage drop of the starting system, the minimum voltage requirement of the starter, the starting current and the sum of all load currents in the starting stage of the whole vehicle.
In the formula, RiThe maximum low-temperature resistance value of the storage battery is represented by the unit of omega; vOCRepresents the open circuit voltage of the battery in V at the target low temperature environment, which in one embodiment is-30 deg.C; vCRepresents the loop pressure drop for starting the system, in units of V; vSRepresents the minimum voltage requirement of the starter, and is V; i isStarterRepresents the starting current with the unit of A; i isloadThe sum of all load currents in the starting stage of the whole vehicle is A. That is, the low temperature resistance value is selected to be less than RiAnd the capacity is larger than C.
Referring to fig. 4, a flowchart of a configuration method of a generator according to this embodiment is provided. The method comprises the following steps:
s41: and respectively counting to obtain the average working current of the load under the idle working condition and the running working condition according to the configured parameters of the electronic devices in the target vehicle.
In one or more embodiments, the load average operating current in the idle condition or the driving condition can be calculated by the following formula:
in the formula IAverageThe unit of the average working current of the electric load of the whole vehicle is A; m represents the total number of types of electric equipment of the whole vehicle; n isiIndicating the number of the ith type of electric equipment; i isiThe rated current of the ith type of electric equipment is represented and has the unit of A; kiAnd a weighting coefficient representing the i-th type of consumer.
The rated current of various types of electric equipment is provided for a load supplier or obtained according to the configuration requirement of a whole vehicle factory.
The setting of the weighting coefficients of different types of electric equipment can be classified and set according to the working time of the electric equipment. In one or more specific embodiments, the electric devices are divided into continuous workloads, long-time workloads, and short-time workloads, and a corresponding weighting coefficient is set for each type of electric device. The load that will work as long as the vehicle is working is classified as a continuous working load, such as an engine controller and a meter, etc., with a weighting factor of 1. The vehicle can not work all the time in the working process of the vehicle, but the load with higher working frequency is classified into continuous working loads, such as vehicle lamps, radios and the like, the weighting coefficient of the continuous working loads is a numerical value between 0 and 1, and the higher the working frequency is, the larger the corresponding weighting coefficient is. Loads that operate at a relatively low frequency during operation of the vehicle are classified as short-time operation loads, such as ESP (Electronic Stability Program) and airbags, and the weighting factor corresponding to the short-time operation loads is close to 0.
S42: and determining the minimum value of the average value of the first output current of the generator in the finished automobile power supply system as the average working current of the load under the running working condition, and determining the minimum value of the average value of the second output current of the generator as the average working current of the load under the idling working condition.
The first output current average value is the output current average value of the generator under the running working condition; the second output current average value is the output current average value of the generator under the idle working condition.
The process of selecting a generator with the first average output current and the second average output current meeting the requirements is described in detail below.
A11: and selecting a generator with rated current larger than the average load working current under the idling condition and the running condition.
The rated current of the generator is a fixed parameter of the generator. And preliminarily screening the generators within a certain range by judging the rated current. The rated current is larger than the average load working current under the idle working condition and the running working condition, namely the rated current is larger than the average load working current under the idle working condition, and the rated current is also larger than the average load working current under the running working condition.
A12: and acquiring a rotating speed statistical table of each generator under the driving working condition, which is obtained through the bench test.
After the generators within a certain range are obtained through the preliminary screening in the step A11, the step A12 is executed to obtain a rotating speed statistical table of each generator within the range under the driving condition. The Driving condition may be a standard Driving condition such as an NEDC (New European Driving Cycle) condition, or may be a special Driving condition configured in a vehicle configuration process.
The process of obtaining the rotating speed statistical table of the generator under the running working condition through the bench test specifically comprises the following steps: obtaining the whole rotating speed curve of the engine under the running working condition through a bench test; and obtaining a rotating speed curve of the generator under the running working condition according to the transmission ratio of the engine and the generator, namely a rotating speed statistical table.
A13: and calculating to obtain the first output current average value of each generator according to the relation between the rotating speed and the output current of each generator.
The first output current average value is the output current average value of the generator under the running working condition. The relation between the rotating speed and the output current of the generator is the characteristic curve of the generator, and the characteristic curves of different generators are different.
A14: and acquiring a rotating speed statistical table of each generator under the idle working condition, which is obtained through a bench test.
Step a14 is similar to step a12, and only the difference between the operating conditions exists, and the description of this embodiment is omitted.
A15: and calculating to obtain a second output current average value of each generator according to the relation between the rotating speed and the output current of each generator.
The second output current average value is the output current average value of the generator under the idle working condition.
A16: and selecting the generator with the first output current average value larger than the load average working current under the running working condition and the second output current average value larger than the load average working current under the idling working condition.
That is, the average value of the first output current of the generator is larger than the average load operating current in the driving condition, and the average value of the second output current of the generator is larger than the average load operating current in the idling condition.
Under the idle working condition, in order to ensure that the storage battery can be fully charged under the limit working conditions of short-distance running, engine idling and the like, multiplication factors need to be considered; in one or more embodiments, the required value of the average value of the second output current of the generator is specifically 1.1 to 1.5 times of the average working current of the load under the idle condition, that is, the minimum value of the average value of the second output current of the generator is 1.1 times of the average working current of the load under the idle condition, and considering cost factors, the maximum value of the average value of the second output current of the generator is 1.5 times of the average working current of the load under the idle condition.
While, for purposes of simplicity of explanation, the foregoing method embodiments have been described as a series of acts or combination of acts, it will be appreciated by those skilled in the art that the present invention is not limited by the illustrated ordering of acts, as some steps may occur in other orders or concurrently with other steps in accordance with the invention. For example, the starter configuration method combines two steps directly into one step, i.e. directly using the formula
And calculating to obtain the minimum power of the starter.
The following are embodiments of the apparatus of the present invention that may be used to perform embodiments of the method of the present invention. For details which are not disclosed in the embodiments of the apparatus of the present invention, reference is made to the embodiments of the method of the present invention.
This embodiment provides a whole car electrical power generating system configuration device, includes:
an acquisition unit for acquiring configured parameters of an electronic device in a target vehicle;
the configuration unit is used for calculating a required value of an unconfigured parameter of at least one electronic device in a finished automobile power supply system according to the configured parameter of the electronic device in the target vehicle, wherein the required value of the unconfigured parameter of the at least one electronic device comprises the following steps: at least one of a minimum power of the starter, a minimum capacity of the battery, a maximum low temperature resistance value of the battery, and a minimum value of an average value of output currents of the generator.
Through forward configuration, a finished automobile power supply system meeting the driving requirement of the automobile can be obtained only through analysis and bench test, reverse pushing of the configuration of other automobile types is not needed, the configuration and matching degree of the finished automobile power supply system is optimized, the configuration time is shortened, and the configuration cost is reduced.
Referring to fig. 5, for the configuration device of the power supply system of the entire vehicle provided in this embodiment, the configuration unit includes a starter configuration subunit, a storage battery configuration subunit, and a generator configuration subunit.
The starter configuration subunit is specifically configured to: calculating the starting power of the engine according to the starting torque and the starting rotating speed of the engine; and calculating the minimum power of the starter according to the transmission efficiency and the starting power between the starter and the engine.
The battery configuration subunit is specifically configured to: calculating to obtain the minimum capacity of the storage battery according to the static current of the vehicle controller, the self-discharge current of the storage battery, the static time target of the vehicle and the state of charge variation of the storage battery; and calculating to obtain the maximum low-temperature resistance value of the storage battery according to the open-circuit voltage of the storage battery in the target low-temperature environment, the loop voltage drop of the starting system, the minimum voltage requirement of the starter, the starting current and the sum of all load currents in the starting stage of the whole vehicle.
The generator configuration subunit is specifically configured to: respectively counting to obtain load average working current under an idle working condition and a running working condition according to configured parameters of electronic devices in a target vehicle; determining the minimum value of the average value of the first output current of a generator in the power supply system of the whole vehicle as the average working current of the load under the running working condition, and determining the minimum value of the average value of the second output current of the generator as the average working current of the load under the idling working condition; the first output current average value is the output current average value of the generator under the running working condition, and the second output current average value is the output current average value of the generator under the idling working condition.
In one or more embodiments, the minimum value of the average value of the second output current of the generator is 1.1 times of the average working current of the load under the idle condition; the maximum value of the average value of the second output current of the generator is 1.5 times of the average working current of the load under the idle condition.
The finished automobile power supply system configuration device provided by the embodiment of the invention can be applied to finished automobile power supply system configuration equipment, such as a PC terminal, a cloud platform, a server cluster and the like. The server can be one or more of a rack server, a blade server, a tower server and a cabinet server. Referring to fig. 6, a schematic diagram of a vehicle power system configuration device provided in this embodiment is shown. The hardware structure of the vehicle power system configuration device may include: at least one processor 61, at least one communication interface 62, at least one memory 63 and at least one communication bus 64; and the processor 61, the communication interface 62 and the memory 63 are communicated with each other through a communication bus 64.
The communication interface 62 may include a standard wired interface, a wireless interface (e.g., WI-FI interface). Are commonly used to establish communication links between the vehicle power system configuration device and other electronic devices or systems.
The memory 63 includes at least one type of readable storage medium. The readable storage medium may be an NVM (non-volatile memory) such as flash memory, hard disk, multimedia card, card-type memory, etc. The readable storage medium may also be a high-speed RAM (random access memory) memory. The readable storage medium may be, in some embodiments, an internal storage unit of the entire vehicle power system configuration device, such as a hard disk of the entire vehicle power system configuration device. In other embodiments, the readable storage medium may also be an external storage device of the entire vehicle power system configuration device, such as a plug-in hard disk, an SMC (Smart Media Card), an SD (Secure Digital) Card, a Flash memory Card (Flash Card), and the like provided on the entire vehicle power system configuration device.
Wherein the memory 63 stores a computer program, and the processor 61 may call the computer program stored in the memory 63, the computer program being configured to:
acquiring configured parameters of an electronic device in a target vehicle;
calculating to obtain a required value of the unconfigured parameter of at least one electronic device in the whole vehicle power supply system according to the configured parameter of the electronic device in the target vehicle;
the demand values for the unconfigured parameters of the at least one electronic device include: at least one of a minimum power of the starter, a minimum capacity of the battery, a maximum low temperature resistance value of the battery, and a minimum value of an average value of output currents of the generator.
The refinement function and the extension function of the program may be referred to as described above.
FIG. 6 only shows an entire vehicle power system configuration device with components 61-64, but it should be understood that not all of the shown components are required and that more or fewer components may alternatively be implemented.
Optionally, the vehicle power system configuration device may further include a user interface, which may include an input unit (such as a keyboard), a voice input device (such as a device with voice recognition function including a microphone), and/or a voice output device (such as a speaker, a headset, etc.). Optionally, the user interface may also include a standard wired interface and/or a wireless interface.
Optionally, the vehicle power system configuration device may further include a display, and the display may also be referred to as a display screen or a display unit. In some embodiments, the display device can be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) display, and the like. The display is used for displaying information processed in the whole vehicle power system configuration equipment and displaying a visual user interface.
Optionally, the vehicle power system configuration device further includes a touch sensor. The area provided by the touch sensor for the user to perform touch operation is referred to as a touch area. Further, the touch sensor may be a resistive touch sensor, a capacitive touch sensor, or the like. The touch sensor may include not only a contact type touch sensor but also a proximity type touch sensor. Further, the touch sensor may be a single sensor, or may be a plurality of sensors arranged in an array, for example. A user may input data by touching the touch area.
In addition, the area of the display of the vehicle power system configuration equipment can be the same as or different from that of the touch sensor. Optionally, the display is stacked with the touch sensor to form a touch display screen. The device detects touch operation triggered by a user based on the touch display screen.
The vehicle power system configuration device may further include RF (Radio Frequency) circuits, sensors, audio circuits, and the like, and is not redundant here.
An embodiment of the present invention further provides a readable storage medium, where the readable storage medium may store a program adapted to be executed by a processor, where the program is configured to:
acquiring configured parameters of an electronic device in a target vehicle;
calculating to obtain a required value of the unconfigured parameter of at least one electronic device in the whole vehicle power supply system according to the configured parameter of the electronic device in the target vehicle;
the demand values for the unconfigured parameters of the at least one electronic device include: at least one of a minimum power of the starter, a minimum capacity of the battery, a maximum low temperature resistance value of the battery, and a minimum value of an average value of output currents of the generator.
The refinement function and the extension function of the program may be referred to as described above.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
In this document, relational terms such as first and second, and the like may be 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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the present specification, the emphasis points of the embodiments are different from those of the other embodiments, and the same and similar parts among the embodiments may be referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A method for configuring a power supply system of a whole vehicle is characterized by comprising the following steps:
acquiring configured parameters of an electronic device in a target vehicle;
calculating to obtain a required value of the unconfigured parameter of at least one electronic device in the finished automobile power supply system according to the configured parameter;
the electronic device comprises a battery and/or a generator; wherein, when the electronic device is the storage battery, the demand values of the unconfigured parameters of the electronic device include: a minimum capacity of the battery and a maximum low temperature resistance value of the battery; when the electronic device is a generator, the demand values of the unconfigured parameters of the electronic device comprise: a minimum value of an average value of output currents of the generator;
selecting a corresponding electronic device according to the calculated unconfigured parameter;
when the electronic device is a storage battery, the calculating to obtain the required value of the unconfigured parameter of at least one electronic device in the whole vehicle power supply system according to the configured parameter comprises the following steps:
calculating to obtain the minimum capacity of the storage battery according to the quiescent current of the whole vehicle controller, the self-discharge current of the storage battery in the whole vehicle power supply system, the resting time target of the whole vehicle and the state of charge variation of the storage battery;
according to the formula
Calculating to obtain the maximum low-temperature resistance value of the storage battery; in the formula, RiIndicating the storage of electricityThe maximum low temperature resistance of the cell; vOCRepresents an open circuit voltage of the battery at a target low temperature environment; vCIndicating the loop pressure drop for starting the system; vSRepresents a minimum voltage requirement of the starter; i isStarterRepresents the starting current; i isloadThe sum of all load currents in the starting stage of the whole vehicle;
then, said selecting the corresponding electronic device according to the calculated unconfigured parameter is: selecting a storage battery with the capacity larger than the minimum capacity of the storage battery and the low-temperature resistance smaller than the maximum low-temperature resistance value as the storage battery of the whole vehicle power supply system;
when the electronic device is a generator, calculating a required value of an unconfigured parameter of at least one electronic device in the whole vehicle power supply system according to the configured parameter, wherein the required value comprises the following steps:
according to the formula
Respectively counting to obtain the average working current of the load under the idle working condition and the running working condition; in the formula IAverageRepresenting the average working current of the electric load of the whole vehicle; m represents the total number of types of electric equipment of the whole vehicle; n isiIndicating the number of the ith type of electric equipment; i isiIndicating the rated current of the ith type of electric equipment; kiA weighting coefficient indicating an i-th type of electric device; the weighting coefficient KiThe coefficient is set according to the working time of the i-th class of electric equipment;
calculating a first output current average value of each generator according to a rotating speed statistical table of the generators under the running working condition and a relation between the rotating speed and the output current of the generators; calculating a second output current average value of each generator according to a rotating speed statistical table of the generators under the idle working condition and a relation between the rotating speed and the output current of the generators; the first output current average value is the output current average value of the generator under the running working condition, and the second output current average value is the output current average value of the generator under the idling working condition;
then, said selecting the corresponding electronic device according to the calculated unconfigured parameter is: and selecting the generator with the first output current average value larger than the load average working current under the running working condition and the second output current average value larger than the load average working current under the idling working condition.
2. The method of claim 1, wherein the second output current of the generator has a minimum value of 1.1 times the load average operating current at the idle condition;
the maximum value of the average value of the second output current of the generator is 1.5 times of the average working current of the load under the idling working condition.
3. The utility model provides a whole car electrical power generating system configuration device which characterized in that includes:
an acquisition unit for acquiring configured parameters of an electronic device in a target vehicle;
the configuration unit is used for calculating a required value of an unconfigured parameter of at least one electronic device in the whole vehicle power supply system according to the configured parameter and selecting a corresponding electronic device according to the calculated unconfigured parameter; the electronic device comprises a battery and/or a generator; wherein, when the electronic device is the storage battery, the demand values of the unconfigured parameters of the electronic device include: a minimum capacity of the battery and a maximum low temperature resistance value of the battery; when the electronic device is a generator, the demand values of the unconfigured parameters of the electronic device comprise: a minimum value of an average value of output currents of the generator;
the configuration unit comprises a storage battery configuration subunit, and the storage battery configuration subunit is specifically configured to:
calculating to obtain the minimum capacity of the storage battery according to the quiescent current of the whole vehicle controller, the self-discharge current of the storage battery in the whole vehicle power supply system, the resting time target of the whole vehicle and the state of charge variation of the storage battery;
according to the formula
Calculating to obtain the maximum low-temperature resistance value of the storage battery; in the formula, RiRepresents a maximum low temperature resistance value of the battery; vOCRepresents an open circuit voltage of the battery at a target low temperature environment; vCIndicating the loop pressure drop for starting the system; vSRepresents a minimum voltage requirement of the starter; i isStarterRepresents the starting current; i isloadThe sum of all load currents in the starting stage of the whole vehicle;
then, said selecting the corresponding electronic device according to the calculated unconfigured parameter is: selecting a storage battery with the capacity larger than the minimum capacity of the storage battery and the low-temperature resistance smaller than the maximum low-temperature resistance value as the storage battery of the whole vehicle power supply system;
wherein the configuration unit comprises a generator configuration subunit, and the generator configuration subunit is specifically configured to:
according to the formula
Respectively counting to obtain the average working current of the load under the idle working condition and the running working condition; in the formula IAverageRepresenting the average working current of the electric load of the whole vehicle; m represents the total number of types of electric equipment of the whole vehicle; n isiIndicating the number of the ith type of electric equipment; i isiIndicating the rated current of the ith type of electric equipment; kiA weighting coefficient indicating an i-th type of electric device; the weighting coefficient KiThe coefficient is set according to the working time of the i-th class of electric equipment;
calculating a first output current average value of each generator according to a rotating speed statistical table of the generators under the running working condition and a relation between the rotating speed and the output current of the generators; calculating a second output current average value of each generator according to a rotating speed statistical table of the generators under the idle working condition and a relation between the rotating speed and the output current of the generators;
the first output current average value is the output current average value of the generator under the running working condition, and the second output current average value is the output current average value of the generator under the idling working condition;
then, said selecting the corresponding electronic device according to the calculated unconfigured parameter is: and selecting the generator with the first output current average value larger than the load average working current under the running working condition and the second output current average value larger than the load average working current under the idling working condition.
4. The apparatus of claim 3, wherein the second output current of the generator has a minimum value of 1.1 times the load average operating current at the idle condition;
the maximum value of the average value of the second output current of the generator is 1.5 times of the average working current of the load under the idling working condition.
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| CN112580162A (en) * | 2020-12-10 | 2021-03-30 | 奇瑞汽车股份有限公司 | Generator model selection system based on Simulink |
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