CN112026584B - Electric automobile energy distribution method, device, vehicle and medium - Google Patents

Electric automobile energy distribution method, device, vehicle and medium Download PDF

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CN112026584B
CN112026584B CN202010937084.7A CN202010937084A CN112026584B CN 112026584 B CN112026584 B CN 112026584B CN 202010937084 A CN202010937084 A CN 202010937084A CN 112026584 B CN112026584 B CN 112026584B
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power
current
temperature control
determining
driving
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CN112026584A (en
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霍云龙
王燕
刘建康
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FAW Group Corp
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FAW Group Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/34—Cabin temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Abstract

The invention discloses an electric automobile energy distribution method, a vehicle and a medium, wherein the method comprises the following steps: determining the current discharge power of a power battery on an electric automobile and the current driving demand power of the electric automobile; and if the current discharge power is smaller than the current driving required power, determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device according to the current charge amount of the power battery and the current temperature control mode of the electric automobile in combination with the predetermined distribution parameter information. According to the invention, energy is distributed to the driving device and the temperature control device of the electric automobile according to the actual driving requirement, the optimal energy distribution of the electric automobile is dynamically regulated in real time, the power performance and the comfort performance of the electric automobile are considered, and the driving experience is improved.

Description

Electric automobile energy distribution method, device, vehicle and medium
Technical Field
The embodiment of the invention relates to an automatic control technology in the field of new energy automobiles, in particular to an electric automobile energy distribution method, device, vehicle and medium.
Background
The stability of the discharge power of the power battery of the pure electric vehicle is limited by the state of charge (SOC) of the power battery and the temperature of the power battery, and the reduction of the temperature of the power battery and the reduction of the SOC of the power battery lead to the attenuation of the discharge power of the power battery. Under the working conditions of high and low temperatures, a driver adjusts the power of the temperature-consuming power battery according to the comfort requirement, and when the discharge power of the power battery cannot meet the actual power requirement of the whole vehicle, the power consumption of driving and the power consumption of adjusting the temperature are required to be balanced. The prior art scheme adopts the mode of limiting the drive to guarantee the temperature control or limiting the temperature control to guarantee the drive when balancing the drive and the temperature control consumed power, however, the excessive limitation can lead to the driving experience to be reduced, and the drive and the temperature control can not be balanced according to the actual demand.
Disclosure of Invention
The invention provides an electric vehicle energy distribution method, an electric vehicle energy distribution device, a vehicle and a medium, which are used for realizing the distribution of energy to a driving device and a temperature control device of an electric vehicle according to the actual demand of a driver, achieving the purposes of dynamically adjusting the energy distribution of the vehicle, giving consideration to the power performance and the comfort performance of the electric vehicle and improving the driving experience.
In a first aspect, an embodiment of the present invention provides an electric vehicle energy distribution method, including:
determining the current discharge power of a power battery on an electric automobile and the current driving demand power of the electric automobile;
and if the current discharge power is smaller than the current driving required power, determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device according to the current charge amount of the power battery and the current temperature control mode of the electric automobile in combination with the predetermined distribution parameter information.
In a second aspect, an embodiment of the present invention further provides a vehicle energy distribution apparatus, including:
the power determination module is used for determining the current discharge power of a power battery on an electric automobile and the current driving demand power of the electric automobile;
and the power distribution module is used for determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device according to the current charge amount of the power battery and the current temperature control mode of the electric automobile in combination with predetermined distribution parameter information if the current discharging power is smaller than the current driving demand power.
In a third aspect, an embodiment of the present invention further provides a vehicle, including: the system comprises an accelerator pedal, a temperature control device, a power motor, a power battery, a storage device and one or more controllers;
the accelerator pedal is used for determining a driving demand coefficient of the power motor according to the opening degree of the current accelerator pedal and determining the driving demand power of the motor according to the position information of the accelerator pedal;
and the temperature control device is used for carrying out temperature regulation according to the difference value between the cabin temperature and the cabin target temperature and the current temperature control power distributed to the temperature control device.
The power motor is used for carrying out motor driving according to the opening degree of the accelerator pedal and the current driving power distributed to the power motor;
the power battery is used for storing electric energy to provide an energy source for the electric automobile;
storage means for storing one or more programs;
when the one or more programs are executed by the one or more controllers, the one or more controllers are caused to implement the electric vehicle energy distribution method.
In a fourth aspect, the present invention also provides a storage medium containing computer executable instructions, which when executed by a computer processor, is used for executing the electric vehicle energy distribution method.
The method comprises the steps of determining the current discharge power of a power battery on the electric automobile and the current driving demand power of the electric automobile; if current discharge power is less than current driving demand power, then according to power battery's current electric charge amount reaches the current temperature control mode that electric automobile located combines predetermined distribution parameter information, confirm the current drive power who distributes to driving motor and the current temperature control power who distributes to temperature control device, solve unilateral restriction drive and guarantee the control by temperature change or restrict the control by temperature change and guarantee the driven mode, lead to driving experience to reduce, can't reach balanced problem to drive and control by temperature change according to actual demand, realized giving electric automobile's drive arrangement and temperature control device according to driver's actual demand distribution energy, reach the distribution of dynamic adjustment car energy, compromise electric automobile dynamic performance and comfort performance, promote driving experience effect.
Drawings
Fig. 1 is a flowchart of an electric vehicle energy distribution method according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of an electric vehicle energy distribution according to a first embodiment of the present invention;
fig. 3 is a structural view of a vehicle energy distribution device in a second embodiment of the invention;
fig. 4 is a schematic structural diagram of a vehicle according to a third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of an electric vehicle energy allocation method according to an embodiment of the present invention, where the embodiment is applicable to a situation that a power battery of an electric vehicle cannot meet a driving requirement of the electric vehicle, and the electric vehicle energy allocation method is applicable to an electric vehicle, where the electric vehicle includes an accelerator pedal, a temperature control device, a driving device, a storage device, one or more controllers, and a power battery, where a storage device block and one or more controllers of the electric vehicle may be implemented in a software and/or hardware manner, and may specifically inherit in an electronic device with specific storage and calculation capabilities to perform electric vehicle energy allocation. The method can be executed by the components in the vehicle, and specifically comprises the following steps:
step S110, determining the current discharge power of a power battery on an electric automobile and the current driving demand power of the electric automobile;
in the embodiment of the invention, the current discharge power of the power battery on the electric automobile can be regarded as the product of the rated voltage of the power battery on the electric automobile at the current moment and the current battery discharge current. The current driving required power of the electric automobile is the power of the electric automobile for completing all driving operations at the current moment. For example, all driving operations at the current moment may be a random combination of control operations of maintaining the current speed of the electric vehicle, maintaining the temperature in the cabin, supporting the current audio equipment playing, maintaining other accessories in a standby state, and the like.
In the embodiment of the invention, the current discharging power of the power battery on the electric automobile and the current driving demand power of the electric automobile are respectively confirmed and used for comparing the current discharging power of the power battery with the current driving demand of the electric automobile so as to conveniently confirm whether the current discharging power of the current power battery meets the current driving demand power of the electric automobile. If the current discharging power of the current power battery meets the current driving required power of the electric automobile, no matter what mode the electric automobile is in, the power required by temperature control and the motor can be met, energy distribution only needs to be carried out according to the current driving requirement, and energy distribution of a power motor driving device and a temperature control device of the electric automobile does not need to be balanced according to actual conditions. Only if the current discharge power of the power battery cannot meet the current driving demand power, the energy is required to be distributed to the driving device and the temperature control device of the electric automobile according to the actual demand of a driver, so that the energy distribution of the dynamic regulation automobile is achieved, the power performance and the comfort performance of the electric automobile are considered, and the driving experience is improved.
Further, the determining the current discharging power of the power battery on the electric automobile and the current driving demand power of the electric automobile comprises: searching a preset discharge power comparison table according to the acquired current charge quantity and current battery temperature of the power battery, and determining the current discharge power of the power battery; the current temperature of the cabin of the electric automobile and the target temperature of the cabin are determined, and the power required by the current temperature is determined; and determining the current driving required power of the electric automobile according to the current accelerator pedal opening, the low-voltage maintaining power of the electric automobile and the current temperature required power.
In addition, in the actual process of calculating the current discharging power of the power battery on the electric vehicle, because the current discharging power of the power battery on the electric vehicle is reduced along with the reduction of the temperature of the power battery and the charge amount of the power battery, the current battery temperature factor of the power battery needs to be considered.
It should be noted that, the present invention is a dynamic energy management for an electric vehicle, i.e. an energy management at each instant, where the current is represented as a corresponding power value at each component of the electric vehicle at the current moment. The current charge of the power battery is judged for evaluating whether the current charge of the electric vehicle supports the electric vehicle to drive to the destination to be reached.
In the process of driving the electric automobile, the electric automobile is used for helping a driver to carry passengers, and the arrangement of the temperature control device provides comfortable service for the passengers of the electric automobile. The judgment of the current temperature control mode of the temperature control device can be understood that when the power motor and the temperature control device of the electric automobile are unevenly distributed in energy in the using process, the adjustment can be carried out at any time, the dynamic energy distribution of the power motor and the temperature control device can be controlled, and the energy distribution is better.
In the embodiment of the invention, the current charge capacity of the power battery can be the current charge capacity of the power battery displayed on the power display area on the electric automobile. The current battery temperature of the power battery can be the surface temperature of the power battery on the electric automobile. The preset discharge power comparison table can be a power table corresponding to the power charge amount and the battery temperature determined by the vehicle condition of the electric vehicle according to the actual vehicle experiment or index calculation. The current cabin temperature of the electric automobile may be the current cabin temperature of the electric automobile. The target temperature of the vehicle cabin can be the temperature set by a user in a temperature control adjusting area according to the comfort requirement of the user. For example, when the current cabin temperature of the electric vehicle is 32 °, the user feels hot and comfortable at 20 ° and thus presets the cabin temperature to 20 ° in the temperature-controlled adjustment region.
Specifically, determining the current driving demand power of the electric automobile according to the current accelerator pedal opening, the low-voltage maintaining power of the electric automobile and the current temperature demand power, comprises:
calculating the current driving demand power P of the electric automobile according to the following formulareq：
Preq＝P1+P2+P3(formula 1)
Wherein, P1The driving power corresponding to the opening and closing degree of the current accelerator pedal; p2Maintaining power for low voltage of the electric vehicle; p3Power is required for the current temperature.
According to the embodiment of the invention, the opening degree of the current accelerator pedal is the angle formed by the movable end of the accelerator pedal and the fixed end of the accelerator pedal after a user steps on the accelerator pedal according to the requirement in the driving process. Wherein, the movable end of the accelerator pedal can be an adjusting end for a user through acting force. Wherein, the low-voltage maintaining power is the standby power of other accessories of the electric automobile except the ignition system. For example: other accessories may be electronic controllers, cooling systems, etc. And the current temperature required power is the power which needs to be consumed by temperature control at the moment when the current cabin temperature reaches the cabin target temperature. For example, when the current cabin temperature of the electric vehicle is 0 °, the user feels cold and feels comfortable when the cabin temperature is 26 °, so that the cabin temperature is preset to 26 ° in the temperature control adjustment area, and the temperature in the cabin of the electric vehicle needs to be raised by the power consumed by temperature control at the current moment of 26 °.
It should be noted that, it is considered that the current cabin temperature cannot reach the target cabin temperature instantaneously at a certain time, and therefore the current temperature required power is the power required to be consumed by temperature control at the current time according to the temperature rise or fall difference, and is not the power consumed by the current cabin temperature reaching the cabin temperature.
And step S120, if the current discharging power is smaller than the current driving required power, determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device according to the current electric charge of the power battery and the current temperature control mode of the electric automobile in combination with predetermined distribution parameter information.
In the embodiment of the present invention, the temperature control mode may be a comfort mode or a comfort mode. The comfort mode is that the power consumption is carried out by the temperature control according to the power which needs to be consumed by the temperature control at the current time corresponding to the target temperature of the temperature control adjustment area of the user; the non-comfort mode is that the temperature control consumes the corresponding power according to the actual vehicle condition of the vehicle and the actual demand of the user.
Wherein the allocation parameter information includes: the current available discharge power of the power battery, the driving demand coefficient of the power motor and the energy consumption demand coefficient of the temperature control device.
In the embodiment of the present invention, the distribution parameter information may be considered as all used information for distributing the current discharge power of the power battery. The energy distribution coefficient between the temperature control device and the motor is timely adjusted according to the actual needs and intentions of the driver on the premise that the current discharge power of the power battery cannot meet the current driving requirements according to the distribution parameter information, so that the distribution of the current available discharge power is more intelligently controlled, and the driving experience of the driver is improved.
Further, the determining of the allocation parameter information includes: determining a power difference value between the current discharge power and the low-voltage maintaining power of the electric automobile as the current distributable discharge power of the power battery; determining a driving demand coefficient of a power motor according to the obtained opening degree of the current accelerator pedal; and determining the energy consumption demand coefficient of the temperature device according to the acquired current distributable power and the current opening of the accelerator pedal plate in combination with the difference value between the current temperature of the vehicle cabin and the target temperature of the vehicle cabin.
In the embodiment of the invention, the currently allocable discharge power is the power of the current discharge power except for keeping normal operation of other accessories of the electric automobile, namely the discharge power of the electric automobile adjustable according to actual requirements at the current moment. The actual requirements of the electric automobile are mainly reflected in the opening degree of the current accelerator pedal, the actual temperature of the automobile cabin and the target temperature of the automobile cabin.
In the embodiment of the invention, when the accelerator pedal is in an initial state, an angle formed by the movable end and the fixed end of the accelerator pedal is divided into a plurality of sections, and each section has a driving demand coefficient of a corresponding power motor. Wherein the driving demand coefficient of the power motor is used
Figure BDA0002672330080000081
Meaning that the range is 0 to 1. For example, when a user applies force to the accelerator pedal to enable the movable end of the accelerator pedal and the fixed end of the accelerator pedal to form a new angle, the driving demand coefficient of the power motor corresponding to the section where the movable end of the accelerator pedal falls is checked.
In the embodiment of the invention, the driving demand coefficient of the power motor can be determined according to the opening and closing of the accelerator pedal, and the driving demand power of the power motor corresponding to the opening and closing degree of the accelerator pedal can be determined according to the opening degree of the accelerator pedal. The accelerator pedal can be regarded as an accelerator pedal, and the specific structure of the accelerator pedal can be a mechanical structure such as a stay wire or a pull rod, and can also be an electronic accelerator. The opening and closing degree of the accelerator pedal is used for transmitting position information of the accelerator pedal to the motor, the motor needs the required torque of the motor according to the position information of the accelerator pedal, and the required driving power of the motor is determined according to the required torque so as to achieve the required speed of the electric automobile corresponding to the position of the accelerator pedal.
Specifically, the motor drive demand power that throttle running-board degree of opening and shutting corresponds includes:
calculating the motor drive required power P corresponding to the opening degree of the accelerator pedal according to the following formula1：
Figure BDA0002672330080000091
Wherein m is the mass of the electric vehicle; f is the friction coefficient of the electric automobile and the road; theta is the current speed of the electric automobile; sigma is a rotating mass conversion coefficient of the electric automobile; a is the windward area of the electric automobile; sin θ is the sine of the road slope; 21.15 is a constant coefficient.
In the embodiment of the invention, the driving required power of the corresponding power motor is determined according to the opening degree of the current accelerator pedal. And obtaining the current temperature control adjustable power according to the difference value of the obtained current distributable power and the driving demand power of the power motor corresponding to the current opening degree of the accelerator pedal. And determining the current temperature-control adjustable temperature according to the current temperature-control adjustable power, and determining the energy consumption demand coefficient of the current temperature control device according to the current temperature-control adjustable temperature and the difference value between the current temperature of the vehicle cabin and the target temperature of the vehicle cabin.
Specifically, determining the energy consumption demand coefficient of the temperature device according to the acquired current distributable power and the current accelerator pedal opening combined with the difference between the current temperature of the vehicle cabin and the target temperature of the vehicle cabin comprises the following steps:
calculating the energy consumption demand coefficient delta of the temperature device of the electric automobile according to the following formula:
Figure BDA0002672330080000092
wherein T1 identifies the cabin current temperature; t2 represents the cabin target temperature; Δ T represents the current adjustable temperature, i.e., the difference between the current temperature of the cabin and the adjustable maximum or minimum temperature; the value range of the delta value is between 0 and 1, the minimum value of the delta value is 0, the current temperature of the vehicle cabin is equal to the target temperature of the vehicle cabin, and the current temperature of the vehicle cabin is proper; the maximum value of the delta value is 1, which indicates that the difference value between the current temperature of the vehicle cabin and the target temperature of the vehicle cabin is large.
In the embodiment of the invention, if the current discharge power of the current power battery meets the current driving demand power of the electric automobile, no matter what mode the electric automobile is in, the temperature control and the power required by the motor can be met, only energy distribution is needed according to the current driving demand, and energy distribution of a power motor drive and a temperature control device of the electric automobile is not needed to be balanced according to actual conditions. And determining the current allocation strategy according to the current temperature control mode and the current charge capacity of the power battery.
Further, the determining, according to the current charge amount of the power battery and the current temperature control mode in which the electric vehicle is located, the current driving power allocated to the power motor and the current temperature control power allocated to the temperature control device in combination with the predetermined allocation parameter information includes:
if the current charge capacity is larger than or equal to the target charge capacity, when the current temperature control mode is a comfort mode, searching a preset comfort mode distribution coefficient table according to the distribution parameter information, and determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device;
and when the current temperature control mode is the non-comfort mode, searching a preset non-comfort mode distribution coefficient table according to the distribution parameter information, and determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device.
In the embodiment of the invention, the current charge capacity of the power battery can be regarded as the ratio of the residual capacity of the power battery to the actual capacity of the power battery, and is used for reflecting the current residual capacity of the power battery; the target charge amount can be considered as the charge amount to be consumed by the power battery corresponding to the distance to be traveled by the electric vehicle and the operation action to be completed when the electric vehicle reaches the destination. Wherein, the comfort mode distribution coefficient table can be regarded as the driving demand coefficient according to the power motor
Figure BDA0002672330080000101
And the energy consumption demand coefficient delta of the temperature device is calibrated by a method of real vehicle test or index simulation, and tends to meet the energy distribution coefficient table of the temperature control device preferentially, so that when the current distributable power energy distribution is controlled according to the distribution coefficient, the power performance and the economy are considered while the energy distribution of the temperature control device is emphasized. Wherein the non-comfort mode distribution coefficient table can be regarded as a coefficient according to the driving requirement of the power motor
Figure BDA0002672330080000102
And the energy consumption demand coefficient delta of the temperature device is calibrated by a real vehicle test or index simulation method and tends to preferentially meet the energy distribution coefficient table driven by the motor. In addition, when the opening degree of the accelerator pedal is 1, representing the working conditions that the electric automobile is climbing a slope with larger inclination or is fully loaded with the automobile and the like, the currently allocable power is required to be completely used for driving the motor, and the comfort requirement can be ignored at the moment.
In the embodiment of the invention, if the current charged electric quantity is greater than or equal to the target charged electric quantity, although the current discharging power of the power battery at a certain moment cannot meet the power required by the current driver, the stored electric quantity of the power battery can meet the charged electric quantity consumed by the power battery corresponding to the distance the electric automobile needs to travel and the operation action the electric automobile needs to complete when reaching the destination. Therefore, the current charge capacity of the power battery can meet the power required by the motor drive and the temperature control device, so that if the temperature control mode is a comfortable mode, the influence on the drive of the power motor is not large, the driving experience of a driver cannot be influenced, the energy distribution coefficient table of the temperature control device is preferentially met, and the distribution coefficient table of the comfortable mode is referred. If the current charge capacity is greater than or equal to the target charge capacity and the current temperature control mode is the non-comfort mode, the charge capacity of the power battery can meet the distance to be traveled by the electric automobile and the charge capacity to be consumed by the power battery corresponding to the operation action to be finished when the electric automobile reaches the destination, but the driver selects the temperature control mode as the non-comfort mode, preferentially tends to meet the energy distribution coefficient table of the power motor according to the actual intention of the driver selecting the temperature control mode as the non-comfort mode, and refers to the non-comfort mode distribution coefficient table.
Illustratively, the comfort mode energy allocation coefficient table calibration is intended to take into account both dynamics and economy, tending to take care of comfort, and the following table 1 for a particular comfort mode energy allocation coefficient:
TABLE 1 comfort mode energy distribution coefficient
Figure BDA0002672330080000111
Wherein the first action
Figure BDA0002672330080000121
The first column is the delta value, and the comfort mode allocation coefficient table can be considered as the coefficient according to the driving demand of the power motor
Figure BDA0002672330080000122
And the energy consumption demand coefficient delta of the temperature device is determined by a real-vehicle test or index simulation method to obtain specific values a 1-a 22 in the table, and the energy distribution coefficient table which is calibrated and tends to meet the requirement of the temperature control device preferentially is used for controlling the energy distribution of the current distributable power according to the distribution coefficient and emphasizing on the energy distribution of the temperature control deviceThe power performance and the economical efficiency are considered simultaneously.
For example, the non-comfort mode energy allocation coefficient table calibration is a compromise between power and economy, tending to take into account power, and the following table 2 for a particular non-comfort mode energy allocation coefficient:
TABLE 2 non-comfort mode energy distribution coefficients
Figure BDA0002672330080000123
Wherein the first action
Figure BDA0002672330080000124
The first column is the delta value, and the non-comfort mode allocation coefficient table can be considered as the coefficient according to the driving demand of the power motor
Figure BDA0002672330080000125
And the energy consumption demand coefficient delta of the temperature device is determined by a method of real vehicle test or index simulation to obtain b 1-b 22 values in the table, and the calibrated energy distribution coefficient table which tends to preferentially meet the motor drive is obtained. The energy distribution values b 1-b 22 in the non-comfort mode are larger than those in the comfort mode a 1-a 2, namely the maximum power available for the motor is larger, the battery energy is used for driving the running as much as possible, and the running mileage is prolonged.
Further, the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device are determined according to the current charge amount of the power battery and the current temperature control mode of the electric automobile in combination with the predetermined distribution parameter information, wherein the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device comprise
If the current charge capacity is smaller than the target charge capacity, when the temperature control mode is a non-comfort mode, searching a preset non-comfort mode distribution coefficient table according to the distribution parameter information, and determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device;
and when the current temperature control mode is a comfortable mode, adjusting the current temperature control mode to be a non-comfortable mode, searching a preset non-comfortable mode distribution coefficient table according to the distribution parameter information, and determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device.
In the embodiment of the invention, if the current charged electric quantity is smaller than the target charged electric quantity, the current discharging power of the power battery at a certain moment can be considered to not meet the current power required by a driver, and meanwhile, the stored electric quantity of the power battery can not meet the distance to be traveled by the electric automobile and the charged electric quantity consumed by the power battery corresponding to the operation action to be finished when the electric automobile reaches the destination. Therefore, the current charge of the power battery cannot meet the power required by the motor drive and the temperature control device, and therefore, if the temperature control mode is the non-comfort mode, the energy distribution coefficient table of the power motor is preferentially inclined to be met, and the non-comfort mode distribution coefficient table is referred to. If the current charge capacity is less than the target charge capacity, and the current temperature control mode is the comfort mode, the charge capacity of the power battery cannot meet the distance to be traveled by the electric automobile and the charge capacity to be consumed by the power battery corresponding to the operation action to be completed when the electric automobile reaches the destination, but the driver selects the temperature control mode as the comfort mode, the temperature control mode needs to be forcibly converted into the non-comfort mode, the energy distribution coefficient table of the power motor tends to be met preferentially according to the actual driving intention of the driver, and the non-comfort mode distribution coefficient table is referred to.
Further, the searching a preset comfort mode distribution coefficient table according to the distribution parameter information to determine the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device includes:
finding a comfort mode allocation coefficient matching the driving demand coefficient and the energy consumption demand coefficient in the allocation parameter information from the comfort mode allocation coefficient table;
determining a product of a preset comfort mode distribution coefficient and the current distributable power distribution in the distribution parameter information as a first current driving power distributed to the power motor;
determining a difference between the current distributable discharge power and the current driving power as a first current temperature control power distributed to the temperature control device.
In the embodiment of the invention, when the energy distribution coefficient table which is currently referred to is determined as the non-comfort mode distribution coefficient table, the coefficient table is distributed according to the determined driving demand coefficient of the current power motor
Figure BDA0002672330080000141
And searching the corresponding current motor driving energy distribution coefficient beta in the determined current energy consumption demand coefficient delta of the temperature device in the non-comfort mode distribution coefficient table. And determining the current driving power distributed to the power motor according to the product of the determined current distributable power and the searched current motor driving energy distribution coefficient. And determining the current temperature control power distributed to the temperature control device according to the difference value between the current distributable power and the current driving power distributed to the motor.
Specifically, determining the current driving power distributed to the power motor according to the product of the determined current distributable power and the searched current motor driving energy distribution coefficient comprises the following steps:
calculating the current driving power P distributed to the power motor of the electric automobile according to the following formulam：
Pm＝β×Pb(formula 4)
Wherein, PbIs the currently available discharge power, P, of the power batterymAnd beta is the current driving power distribution coefficient of the motor. When the beta value is 0, the current driving rate is not distributed to the power motor, namely the current driving power is 0; when the value of β is 1, it means that the currently available discharge power is entirely allocated to the current drive power, i.e., the current temperature control power allocated to the temperature control device is 0. When the current driving power supplied to the power motor is determined, the remaining part of the current available discharging power can be supplied to the temperature control device. It should be noted that, in the embodiment of the present invention, the currently available discharge power P of the power batterybIt can also be considered as providing the electric vehicle with the current maximum power usage, so PmIt can also be considered as the current maximum driving power of the power motor, i.e. the power that cannot be exceeded at present. Similarly, the current temperature is assignedThe current maximum temperature control power of the control device can not exceed (1 beta) multiplied by PbThe value is obtained. The randomness of the driving conditions of the driver can cause frequent changes of the current temperature control power currently distributed to the temperature control device in the process of using the current energy distribution method of the electric automobile. The frequent change of the current temperature control power distributed to the temperature control device prompts the frequent change of the compressor use power of the current temperature control device, so that a plurality of unstable factors are added to the use process of the temperature control device. In order to maintain normal use of the temperature control device, it is necessary to maintain the current temperature control power allocated to the temperature control device constant for a certain period of time.
Further, the searching a preset non-comfort mode distribution coefficient table according to the distribution parameter information to determine the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device includes:
searching a non-comfort mode distribution coefficient matched with the driving demand coefficient and the energy consumption demand coefficient in the distribution parameter information from a preset non-comfort mode distribution coefficient table;
determining a product of the non-comfort mode distribution coefficient and the current distributable power in the distribution parameter information as a second current driving power distributed to the power motor;
determining a difference between the currently allocatable discharge power and the second current driving power as a second current temperature control power allocated to the temperature control device.
In the embodiment of the invention, when the energy distribution coefficient table which is currently referred to is determined as the comfort mode distribution coefficient table, the driving demand coefficient of the current power motor is determined
Figure BDA0002672330080000151
And searching the corresponding current motor driving energy distribution coefficient in the comfort mode distribution coefficient table according to the determined energy consumption demand coefficient delta of the current temperature device. And determining the current driving power distributed to the power motor according to the product of the determined current distributable power and the searched current motor driving energy distribution coefficient. According to current assignabilityThe difference between the power and the current drive power allocated to the motor determines the current temperature control power allocated to the temperature control device.
In the embodiment of the invention, fig. 2 is a schematic diagram of energy distribution of an electric vehicle in the first embodiment of the invention; as shown in fig. 2, the basic principle of the energy management scheme of the electric vehicle is that if the current discharge power of the current power battery meets the current driving power demand of the electric vehicle, no matter what mode the electric vehicle is in, the temperature control and the power required by the motor can be met, only energy distribution needs to be performed according to the current driving demand, and energy distribution of the power motor drive and the temperature control device of the electric vehicle does not need to be balanced according to actual conditions. And only if the current discharge power of the power battery can not meet the current driving required power, judging the current temperature control mode of the electric automobile and the current charge capacity of the power battery, and distributing the current available discharge power of the power battery according to a specified comfortable mode distribution strategy and a non-comfortable mode distribution strategy.
The method comprises the steps of determining the current discharge power of a power battery on the electric automobile and the current driving demand power of the electric automobile; if current discharge power is less than current driving demand power, then according to power battery's current electric charge amount reaches the current temperature control mode that electric automobile located combines predetermined distribution parameter information, confirm the current drive power who distributes to driving motor and the current temperature control power who distributes to temperature control device, solve unilateral restriction drive and guarantee the control by temperature change or restrict the control by temperature change and guarantee the driven mode, lead to driving experience to reduce, can't reach balanced problem to drive and control by temperature change according to actual demand, realized giving electric automobile's drive arrangement and temperature control device according to driver's actual demand distribution energy, reach the distribution of dynamic adjustment car energy, compromise electric automobile dynamic performance and comfort performance, promote driving experience effect.
Example two
Fig. 3 is a structural diagram of a vehicle energy distribution device according to a second embodiment of the present invention, where the vehicle energy distribution device according to the second embodiment of the present invention can execute an electric vehicle energy distribution method according to any of the embodiments, and the vehicle energy distribution device includes:
the power determining module 31 is configured to determine a current discharging power of a power battery on an electric vehicle and a current driving demand power of the electric vehicle;
and the power distribution module 32 is configured to determine, according to the current charge amount of the power battery and the current temperature control mode in which the electric vehicle is located, and in combination with predetermined distribution parameter information, the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device, if the current discharge power is smaller than the current driving required power.
Further, the power determining module 31 is specifically configured to:
searching a preset discharge power comparison table according to the acquired current charge quantity and current battery temperature of the power battery, and determining the current discharge power of the power battery; the current temperature of the cabin of the electric automobile and the target temperature of the cabin are determined, and the power required by the current temperature is determined; and determining the current driving required power of the electric automobile according to the current accelerator pedal opening, the low-voltage maintaining power of the electric automobile and the current temperature required power.
Further, the allocation parameter information includes: the current available discharge power of the power battery, the driving demand coefficient of the power motor and the energy consumption demand coefficient of the temperature control device.
Further, the apparatus further comprises: an allocation parameter determination module 33;
the allocation parameter determining module 33 is specifically configured to:
determining a power difference value between the current discharge power and the low-voltage maintaining power of the electric automobile as the current distributable discharge power of the power battery; determining a driving demand coefficient of a power motor according to the obtained opening degree of the current accelerator pedal; and determining the energy consumption demand coefficient of the temperature device according to the acquired current distributable power and the current opening of the accelerator pedal plate in combination with the difference value between the current temperature of the vehicle cabin and the target temperature of the vehicle cabin.
Further, the power distribution module 32 includes: the method is specifically used for:
if the current charge capacity is larger than or equal to the target charge capacity, when the current temperature control mode is a comfort mode, searching a preset comfort mode distribution coefficient table according to the distribution parameter information, and determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device; and when the current temperature control mode is the non-comfort mode, searching a preset non-comfort mode distribution coefficient table according to the distribution parameter information, and determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device.
Further, the power distribution module 32 may specifically be further configured to:
if the current charge capacity is smaller than the target charge capacity, when the temperature control mode is a non-comfort mode, searching a preset non-comfort mode distribution coefficient table according to the distribution parameter information, and determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device; and when the current temperature control mode is a comfortable mode, adjusting the current temperature control mode to be a non-comfortable mode, searching a preset non-comfortable mode distribution coefficient table according to the distribution parameter information, and determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device.
Further, searching a preset comfort mode distribution coefficient table according to the distribution parameter information, and determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device, may include:
finding a comfort mode allocation coefficient matching the driving demand coefficient and the energy consumption demand coefficient in the allocation parameter information from the comfort mode allocation coefficient table; determining a product of a preset comfort mode distribution coefficient and the current distributable power distribution in the distribution parameter information as a first current driving power distributed to the power motor; determining a difference between the current distributable discharge power and the current driving power as a first current temperature control power distributed to the temperature control device.
Further, searching a preset non-comfort mode distribution coefficient table according to the distribution parameter information, and determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device may include:
searching a non-comfort mode distribution coefficient matched with the driving demand coefficient and the energy consumption demand coefficient in the distribution parameter information from a preset non-comfort mode distribution coefficient table; determining a product of the non-comfort mode distribution coefficient and the current distributable power in the distribution parameter information as a second current driving power distributed to the power motor; determining a difference between the currently allocatable discharge power and the second current driving power as a second current temperature control power allocated to the temperature control device.
The vehicle energy distribution device provided by the embodiment of the invention can execute the electric vehicle energy distribution method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects for executing the electric vehicle energy distribution method.
EXAMPLE III
Fig. 4 is a schematic structural diagram of a vehicle according to a third embodiment of the present invention, as shown in fig. 4, the vehicle includes a temperature sensor 41, a controller 42, a storage device 43, an input device 44, an output device 45, a throttle pedal 48, a temperature control device 49, a power motor 47, and a power battery 46; the number of the temperature sensors 41 and the controllers 42 in the vehicle may be one or more, and one temperature sensor 41 and one controller 42 are illustrated in fig. 4; the temperature sensor 41, the controller 42, the storage device 43, the input device 44, and the output device 45 in the vehicle may be connected by a bus or other means, and the bus connection is exemplified in fig. 4.
And the temperature sensor 41 is used for acquiring air conditioner temperature information of each temperature zone.
The accelerator pedal plate 48 is used for determining the driving demand coefficient of the power motor according to the opening degree of the current accelerator pedal plate and determining the driving demand power of the motor according to the position information of the accelerator pedal plate;
and the temperature control device 49 is used for carrying out temperature regulation according to the difference value between the cabin temperature and the cabin target temperature and the current temperature control power distributed to the temperature control device.
A power motor 47 for motor-driving according to the opening degree of the accelerator pedal and the current driving power allocated to the power motor;
and the power battery 46 is used for storing electric energy to provide an energy source for the electric automobile.
The storage device 43 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as program instructions/modules (for example, the power determination module 31, the power distribution module 32, and the distribution parameter determination module 33) corresponding to the air conditioning temperature zone conversion control method in the embodiment of the present invention. The controller 42 executes various functional applications and data processing of the vehicle by running software programs, instructions, and modules stored in the storage device 43, that is, implements the air conditioning temperature zone conversion control method described above.
The storage device 43 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the storage device 43 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the storage device 43 may further include memory remotely located from the controller 42, which may be connected to the vehicle over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 44 is operable to receive input numeric or character information and to generate key signal inputs relating to user settings and function controls of the vehicle. The output device 45 may include a display device such as a display screen.
Example four
An embodiment of the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a method for energy distribution of an electric vehicle, the method including:
determining the current discharge power of a power battery on an electric automobile and the current driving demand power of the electric automobile;
and if the current discharge power is smaller than the current driving required power, determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device according to the current charge amount of the power battery and the current temperature control mode of the electric automobile in combination with the predetermined distribution parameter information.
Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (8)

1. An electric vehicle energy distribution method is characterized by comprising the following steps:
determining the current discharge power of a power battery on an electric automobile and the current driving demand power of the electric automobile;
if the current discharge power is smaller than the current driving demand power, determining the current driving power distributed to a power motor and the current temperature control power distributed to a temperature control device according to the current charge amount of the power battery and the current temperature control mode of the electric automobile in combination with predetermined distribution parameter information;
wherein the allocation parameter information includes: the current available discharge power of the power battery, the driving demand coefficient of the power motor and the energy consumption demand coefficient of the temperature control device;
the determining of the allocation parameter information comprises:
determining a power difference value between the current discharge power and the low-voltage maintaining power of the electric automobile as the current distributable discharge power of the power battery;
determining a driving demand coefficient of a power motor according to the obtained opening degree of the current accelerator pedal;
and determining the energy consumption demand coefficient of the temperature control device according to the acquired current distributable power and the current opening of the accelerator pedal plate in combination with the difference value between the current temperature of the vehicle cabin and the target temperature of the vehicle cabin.
2. The method of claim 1, wherein determining the current discharge power of the power battery on the electric vehicle and the current driving demand power of the electric vehicle comprises:
searching a preset discharge power comparison table according to the acquired current charge quantity and current battery temperature of the power battery, and determining the current discharge power of the power battery;
the current temperature of the cabin of the electric automobile and the target temperature of the cabin are determined, and the power required by the current temperature is determined;
and determining the current driving required power of the electric automobile according to the current opening of the accelerator pedal, the low-voltage maintaining power of the electric automobile and the current temperature required power.
3. The method of claim 1, wherein the determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device according to the current charge of the power battery and the current temperature control mode of the electric vehicle in combination with the predetermined distribution parameter information comprises:
if the current charge capacity is larger than or equal to the target charge capacity, when the current temperature control mode is a comfort mode, searching a preset comfort mode distribution coefficient table according to the distribution parameter information, and determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device;
and when the current temperature control mode is the non-comfort mode, searching a preset non-comfort mode distribution coefficient table according to the distribution parameter information, and determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device.
4. The method of claim 3, wherein determining the current driving power allocated to the power motor and the current temperature control power allocated to the temperature control device according to the current charge of the power battery and the current temperature control mode of the electric vehicle in combination with predetermined allocation parameter information comprises
If the current charge capacity is smaller than the target charge capacity, when the temperature control mode is a non-comfort mode, searching a preset non-comfort mode distribution coefficient table according to the distribution parameter information, and determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device;
and when the current temperature control mode is a comfortable mode, adjusting the current temperature control mode to be a non-comfortable mode, searching a preset non-comfortable mode distribution coefficient table according to the distribution parameter information, and determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device.
5. The method according to claim 3 or 4, wherein the step of searching a preset comfort mode distribution coefficient table according to the distribution parameter information to determine the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device comprises the steps of:
finding a comfort mode allocation coefficient matching the driving demand coefficient and the energy consumption demand coefficient in the allocation parameter information from the comfort mode allocation coefficient table;
determining a product of a preset comfort mode distribution coefficient and the current distributable power distribution in the distribution parameter information as a first current driving power distributed to the power motor;
determining a difference between the current distributable discharge power and the first current driving power as a first current temperature control power distributed to a temperature control device;
the step of searching a preset non-comfort mode distribution coefficient table according to the distribution parameter information to determine the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device comprises the following steps:
searching a non-comfort mode distribution coefficient matched with the driving demand coefficient and the energy consumption demand coefficient in the distribution parameter information from a preset non-comfort mode distribution coefficient table;
determining a product of the non-comfort mode distribution coefficient and the current distributable power in the distribution parameter information as a second current driving power distributed to the power motor;
determining a difference between the currently allocatable discharge power and the second current driving power as a second current temperature control power allocated to the temperature control device.
6. A vehicle energy distribution apparatus, characterized by comprising:
the power determination module is used for determining the current discharge power of a power battery on an electric automobile and the current driving demand power of the electric automobile;
the power distribution module is used for determining the current driving power distributed to the power motor and the current temperature control power distributed to the temperature control device according to the current charge amount of the power battery and the current temperature control mode of the electric automobile in combination with predetermined distribution parameter information if the current discharging power is smaller than the current driving demand power;
wherein the allocation parameter information includes: the current available discharge power of the power battery, the driving demand coefficient of the power motor and the energy consumption demand coefficient of the temperature control device;
the distribution parameter determination module is used for determining a power difference value between the current discharging power and the low-voltage maintaining power of the electric automobile as the current distributable discharging power of the power battery; determining a driving demand coefficient of a power motor according to the obtained opening degree of the current accelerator pedal; and determining the energy consumption demand coefficient of the temperature control device according to the acquired current distributable power and the current opening of the accelerator pedal plate in combination with the difference value between the current temperature of the vehicle cabin and the target temperature of the vehicle cabin.
7. A vehicle, characterized in that the vehicle comprises: the system comprises an accelerator pedal, a temperature control device, a power motor, a power battery, a storage device and one or more controllers;
the accelerator pedal is used for determining a driving demand coefficient of the power motor according to the opening degree of the current accelerator pedal and determining the driving demand power of the motor according to the position information of the accelerator pedal;
the temperature control device is used for carrying out temperature regulation according to the difference value between the cabin temperature and the cabin target temperature and the current temperature control power distributed to the temperature control device;
the power motor is used for carrying out motor driving according to the opening degree of the accelerator pedal and the current driving power distributed to the power motor;
the power battery is used for storing electric energy to provide an energy source for the electric automobile;
storage means for storing one or more programs;
when the one or more programs are executed by the one or more controllers, the one or more controllers are caused to implement the electric vehicle energy distribution method of any of claims 1-5.
8. A storage medium containing computer-executable instructions for performing the electric vehicle energy distribution method of any of claims 1-5 when executed by a computer processor.
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