CN112644288B - Vehicle energy recovery and distribution method and device, vehicle and storage medium - Google Patents
Vehicle energy recovery and distribution method and device, vehicle and storage medium Download PDFInfo
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- CN112644288B CN112644288B CN202011566767.2A CN202011566767A CN112644288B CN 112644288 B CN112644288 B CN 112644288B CN 202011566767 A CN202011566767 A CN 202011566767A CN 112644288 B CN112644288 B CN 112644288B
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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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
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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
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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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
- 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
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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
- 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
- B60L2240/545—Temperature
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a vehicle energy recovery and distribution method and device, a vehicle and a storage medium. The method comprises the following steps: when the vehicle brakes or slides, acquiring the recovered electric quantity of the recovered electric energy among the wheels; and if the current environment temperature is higher than the preset temperature, adjusting the target temperature of the battery according to the recovered electric quantity, so that the inter-wheel recovered electric energy is used for reducing the temperature of the cooling liquid. The invention solves the problems that the energy form is converted for a plurality of times in the process of converting mechanical energy into electric energy, converting the electric energy into chemical energy and converting the chemical energy into the electric energy again in the conventional vehicle braking energy recovery, and the energy recovery utilization rate is low, realizes that the vehicle braking recovery energy is directly used for vehicle refrigeration, directly converts the recovered energy into cold energy when the environmental temperature is higher, and reduces the effect of energy conversion loss.
Description
Technical Field
The embodiment of the invention relates to the technical field of vehicle design, in particular to a vehicle energy recovery and distribution method, a vehicle energy recovery and distribution device, a vehicle and a storage medium.
Background
At present, the driving range of an electric vehicle in the actual use process of a user is greatly different from the reported driving range, so that the user experience is poor and more complaints are made. One of the main reasons is that the driving range is reported to be obtained by testing under a working condition that the driving condition is simple, for example, an air conditioning system of the vehicle is in a closed state during the test, but for the process that a user actually uses the vehicle, the air conditioner needs to be turned on most of the time, and especially when the temperature of the outdoor environment is high, the cooling of the battery needs to further consume electric energy, so that the driving range is attenuated, and the driving range anxiety of the user is caused.
Generally speaking, whether air conditioning or battery cooling is necessary to consume a certain amount of electrical energy, and current vehicle braking energy recovery generally goes through the following processes: 1. mechanical energy is converted into electric energy, namely, the electric energy is generated under braking and sliding working conditions; 2. converting the electric energy into chemical energy, namely charging the battery by using the energy recovered by braking; 3. the chemical energy is converted into electric energy, namely, the electric appliance of the vehicle consumes power, and the battery discharges. When the vehicle braking energy is recovered, each energy conversion is accompanied with certain energy loss, so that the problem of low energy recovery utilization rate is caused.
Disclosure of Invention
The invention provides a vehicle energy recovery and distribution method, a vehicle energy recovery and distribution device, a vehicle and a storage medium, which are used for directly applying vehicle braking recovered energy to refrigeration, directly converting the recovered energy into cold energy in a specific scene and reducing energy conversion loss.
In a first aspect, an embodiment of the present invention provides a vehicle energy recovery and distribution method, including:
when the vehicle brakes or slides, acquiring the recovered electric quantity of the recovered electric energy among the wheels;
and if the current environment temperature is higher than the preset temperature, adjusting the target temperature of the battery according to the recovered electric quantity, so that the inter-wheel recovered electric energy is used for reducing the temperature of the cooling liquid.
Optionally, the method further includes:
and if the current environment temperature is less than or equal to the preset temperature, charging the battery by using the electric energy recovered between the wheels.
Optionally, the adjusting the target temperature of the battery according to the recovered electric quantity to enable the electric energy recovered between the wheels to be used for reducing the temperature of the cooling liquid includes:
determining a target temperature adjustment value according to the recovered electric quantity;
acquiring a current battery target temperature, and determining the difference between the current battery target temperature and the target temperature adjustment value as an adjusted battery target temperature;
if the adjusted target temperature of the battery is lower than the minimum target temperature, determining actual temperature adjustment electric quantity according to the minimum target temperature, and using the inter-wheel recovered electric energy corresponding to the actual temperature adjustment electric quantity for reducing the temperature of the cooling liquid; if not, then,
and electric energy is recovered between all wheels to reduce the temperature of the cooling liquid.
Optionally, will the electric energy is retrieved between the wheel that the electric quantity that actually adjusts the temperature corresponds and is used for reducing coolant temperature, still include:
determining the difference value between the recovered electric quantity and the actual temperature-regulating electric quantity as a power generation electric quantity;
and charging the battery by using the electric energy recovered between the wheels corresponding to the generated electric quantity.
In a second aspect, an embodiment of the present invention further provides a vehicle energy recovery and distribution device, including:
the recovery electric quantity determining module is used for acquiring the recovery electric quantity of the recovered electric energy between the wheels when the vehicle brakes or slides;
and the first energy distribution module is used for adjusting the target temperature of the battery according to the recovered electric quantity if the current environment temperature is greater than the preset temperature, so that the electric energy recovered among the wheels is used for reducing the temperature of the cooling liquid.
Optionally, the apparatus further comprises:
and the second energy distribution module is used for charging the battery by using the electric energy recovered between the wheels if the current environment temperature is less than or equal to the preset temperature.
Optionally, the first energy distribution module is specifically configured to:
if the current environment temperature is higher than the preset temperature, determining a target temperature adjustment value according to the recovered electric quantity;
acquiring a current battery target temperature, and determining the difference between the current battery target temperature and the target temperature adjustment value as an adjusted battery target temperature;
if the adjusted target temperature of the battery is lower than the minimum target temperature, determining actual temperature adjustment electric quantity according to the minimum target temperature, and using the inter-wheel recovered electric energy corresponding to the actual temperature adjustment electric quantity for reducing the temperature of the cooling liquid; if not, then,
and electric energy is recovered between all wheels to reduce the temperature of the cooling liquid.
Optionally, the first energy distribution module is further configured to:
determining the difference value between the recovered electric quantity and the actual temperature-regulating electric quantity as the generated electric quantity while the inter-wheel recovered electric energy corresponding to the actual temperature-regulating electric quantity is used for reducing the temperature of the cooling liquid;
and charging the battery by using the electric energy recovered between the wheels corresponding to the generated electric quantity.
In a third aspect, an embodiment of the present invention further provides a computer device, including:
one or more processors;
a memory for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement a vehicle energy recovery distribution method as in any embodiment of the invention.
In a fourth aspect, embodiments of the present invention also provide a storage medium containing computer-executable instructions for performing the vehicle energy recovery distribution method according to any of the embodiments of the present invention when executed by a computer processor.
According to the invention, when the vehicle brakes or slides, the recovered electric quantity of the electric energy recovered between the wheels is obtained, and if the current environment temperature is higher than the preset temperature, the target temperature of the battery is adjusted according to the recovered electric quantity, so that the electric energy recovered between the wheels is used for reducing the temperature of the cooling liquid. The invention solves the problems that the energy form is converted for a plurality of times in the process of converting mechanical energy into electric energy, converting the electric energy into chemical energy and converting the chemical energy into the electric energy again in the conventional vehicle braking energy recovery, and the energy recovery utilization rate is low, realizes that the vehicle braking recovery energy is directly used for vehicle refrigeration, directly converts the recovered energy into cold energy when the environmental temperature is higher, and reduces the effect of energy conversion loss.
Drawings
FIG. 1 is a flow chart of a vehicle energy recovery and distribution method according to an embodiment of the present invention;
FIG. 2 is a flow chart of a vehicle energy recovery and distribution method according to a second embodiment of the present invention;
FIG. 3 is a schematic diagram of a vehicle energy recovery and distribution method according to a second embodiment of the present invention;
fig. 4 is a block diagram of a vehicle energy recovery and distribution device according to a third embodiment of the present invention;
fig. 5 is a block diagram of a vehicle according to a fourth 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 noted that, for convenience of description, only a part of the structures related to the present invention, not all of the structures, are shown in the drawings, and furthermore, embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Example one
Fig. 1 is a flowchart of a vehicle energy recovery and distribution method according to an embodiment of the present invention, where the embodiment is applicable to energy recovery during braking of an electric vehicle, and the method may be executed by a vehicle energy recovery and distribution device, and the device may be implemented by software and/or hardware.
As shown in fig. 1, the method specifically includes the following steps:
and step 110, acquiring the recovered electric quantity of the recovered electric energy between the wheels when the vehicle brakes or slides.
The electric energy recovered between the wheels can be understood as electric energy converted from mechanical energy generated by friction of the wheels when the automobile brakes or slides. The recovered electric quantity can be understood as the energy value of the recovered electric energy among the wheels.
Specifically, in the driving process of the vehicle, when a driver steps on a brake pedal or the vehicle is in a sliding state, the vehicle brake can convert redundant mechanical energy into electric energy, the recovered electric quantity of the recovered electric energy among the wheels generated in a preset time period can be obtained, and analysis is performed according to the value of the recovered electric quantity so as to reasonably distribute the recovered electric energy among the wheels.
And 120, if the current environment temperature is higher than the preset temperature, adjusting the target temperature of the battery according to the recovered electric quantity, so that the inter-wheel recovered electric energy is used for reducing the temperature of the cooling liquid.
The temperature or the high temperature of the power battery may affect the input and output of electric energy when the vehicle runs, and even potential safety hazards exist, so that the temperature of the battery needs to be controlled within a reasonable range, and the target temperature of the battery can be understood as the target temperature to be reached by the power battery. For example, the target temperature of the battery is 30 ℃, the battery works and generates heat to 50 ℃ when the vehicle runs, and then the temperature of the battery needs to be reduced to be as close to 30 ℃ as possible.
Specifically, a reasonable preset temperature can be preset, for example, 30 ℃, if the current ambient temperature is higher than the preset temperature, it indicates that the ambient temperature is too high, and the driver generally selects to start the air conditioner for refrigeration, and at this time, refrigeration of the power battery is also very necessary. The air conditioner and the refrigeration of the power battery both need to consume the electric energy of the power battery, on the premise of ensuring that the driving mileage of the vehicle is not greatly attenuated, the electric quantity output of the power battery for refrigeration needs to be limited, and the manual forced use of the air conditioner can reduce the refrigeration efficiency of the power battery. Therefore, the target temperature of the battery can be dynamically adjusted according to the recovered electric quantity, and the electric energy recovered among the wheels is used for reducing the temperature of the cooling liquid. The temperature of the cooling liquid can be directly used for adjusting the temperature of the battery and refrigerating the air conditioner by reducing the discharge of the power battery, so that the temperature of the battery can be adjusted by the power battery, and the passenger compartment of the vehicle can be refrigerated.
According to the technical scheme, when the vehicle brakes or slides, the recovery electric quantity of the electric energy recovered between the wheels is obtained, if the current environment temperature is higher than the preset temperature, the target temperature of the battery is adjusted according to the recovery electric quantity, and the electric energy recovered between the wheels is used for reducing the temperature of the cooling liquid. The invention solves the problems that the energy form is converted for a plurality of times in the process of converting mechanical energy into electric energy, converting the electric energy into chemical energy and converting the chemical energy into the electric energy again in the conventional vehicle braking energy recovery, and the energy recovery utilization rate is low, realizes that the vehicle braking recovery energy is directly used for vehicle refrigeration, directly converts the recovered energy into cold energy when the environmental temperature is higher, and reduces the effect of energy conversion loss.
Example two
Fig. 2 is a flowchart of a vehicle energy recovery and distribution method according to a second embodiment of the present invention. The embodiment further optimizes the vehicle energy recovery and distribution method on the basis of the embodiment.
As shown in fig. 2, the method specifically includes:
and step 210, acquiring the recovered electric quantity of the recovered electric energy between the wheels when the vehicle brakes or slides.
Specifically, in the driving process of the vehicle, when a driver steps on a brake pedal or the vehicle is in a sliding state, the vehicle brake can convert redundant mechanical energy into electric energy, the recovered electric quantity of the recovered electric energy among the wheels generated in a preset time period can be obtained, and analysis is performed according to the value of the recovered electric quantity so as to reasonably distribute the recovered electric energy among the wheels.
Specifically, the current ambient temperature may be obtained, and it is determined whether the current ambient temperature is greater than a preset temperature value, if so, step 240 is performed; otherwise, step 230 is performed.
Specifically, if the current ambient temperature is not higher than the preset temperature, the current ambient temperature is considered to be ideal, and the vehicle does not consume excessive battery energy due to refrigeration, so that the electric energy recovered between the wheels can be directly stored in the power battery, namely, the battery is charged.
And 240, determining a target temperature adjustment value according to the recovered electric quantity.
The target temperature adjustment value may be a fluctuation value for adjusting the current target temperature of the battery.
Specifically, real-time vehicle testing can be performed in advance, different vehicle types are calibrated respectively, a relational mapping table of the recovered electric quantity and the target temperature adjustment value is obtained, and in the actual use process, the corresponding target temperature adjustment value can be obtained by looking up the table according to the obtained recovered electric quantity.
And step 250, acquiring the current battery target temperature, and determining the difference between the current battery target temperature and the target temperature adjustment value as the adjusted battery target temperature.
And the current battery target temperature is the battery regulation target temperature set at the current moment.
Specifically, the target temperature of the battery set at the current moment can be obtained, the target temperature of the battery after adjustment is obtained by subtracting the target temperature of the battery from the target temperature adjustment value, namely the target temperature of the battery is temporarily adjusted to be low, and the purpose that the electric energy recovered between the wheels is directly used for refrigerating the vehicle as much as possible is achieved.
And step 260, judging whether the adjusted target temperature of the battery is less than the minimum target temperature.
The value range of the target temperature of the battery should be within a reasonable target temperature range, that is, the target temperature of the battery should be within a reasonable range and cannot be set to be too high or too low, and the minimum target temperature can be understood as a minimum temperature value within the target temperature range.
Specifically, a preset minimum target temperature is obtained, whether the adjusted target temperature of the battery is less than the minimum target temperature is judged, and if yes, the step 280 is performed; otherwise, step 270 is performed.
And 270, recovering electric energy among all the wheels to reduce the temperature of the cooling liquid.
Specifically, if the adjusted target temperature of the battery is within the target temperature range and is not lower than the minimum target temperature, then the inter-wheel recovered electric energy is completely used for reducing the temperature of the cooling liquid, and the problem of battery damage or energy waste is not caused, so that the inter-wheel recovered electric energy can be completely used for reducing the temperature of the cooling liquid.
And step 280, determining actual temperature adjustment electric quantity according to the minimum target temperature, and using the inter-wheel recovered electric energy corresponding to the actual temperature adjustment electric quantity for reducing the temperature of the cooling liquid.
Specifically, if the target temperature of the battery after adjustment is less than the minimum target temperature, that is, the target temperature of the battery after adjustment will not be within a reasonable target temperature range, then the whole electric energy recovered between the wheels is used for reducing the temperature of the cooling liquid, which may cause the problem of battery damage or energy waste, so that part of the electric energy recovered between the wheels can be used for reducing the temperature of the cooling liquid, so that the battery can be subjected to certain temperature adjustment. At this time, the minimum target temperature can be determined as a new target temperature of the battery, the difference between the current target temperature of the battery and the new target temperature of the battery can be used as an actual target temperature adjustment value, and the actual temperature adjustment electric quantity can be determined according to the actual target temperature adjustment value. The electric energy is recovered between the wheels with the energy value being the actual temperature-adjusting electric quantity to reduce the temperature of the cooling liquid.
And 290, determining the difference value between the recovered electric quantity and the actual temperature-adjusting electric quantity as the generated electric quantity, and charging the battery by using the inter-wheel recovered electric energy corresponding to the generated electric quantity.
Specifically, when the electric energy recovered between the wheels is large, a part of the electric energy recovered between the wheels is used for reducing the temperature of the cooling liquid, and then the rest of the electric energy recovered between the wheels can be stored in the power battery. The recovered electric quantity can be subtracted by the actual temperature-adjusting electric quantity to obtain the generated electric quantity, and the electric energy is recovered between the wheels of the generated electric quantity by the energy value and is used for charging the battery.
For example, fig. 3 is a schematic diagram of a vehicle energy recovery distribution method according to a second embodiment of the present invention. When the vehicle brakes or slides, the vehicle control unit sends an instruction to the motor controller to recover and generate power with corresponding strength, so that the recovered electric energy between the wheels is obtained. The preset temperature may be set to T1 in advance, and if the current ambient temperature is less than the preset temperature T1, the vehicle controller sends an instruction to the motor controller and the battery controller to charge the power battery by using the electric energy recovered between the wheels. If the current environment temperature is higher than T1, the vehicle control unit sends an instruction to the battery controller by combining the recovered electric quantity, temporarily reduces the target temperature of the power battery cooling, indirectly improves the power consumption load of the compressor of the air conditioning system, stores the recovered energy into the battery or the cooling liquid of the motor cooling loop, and reduces the proportion of charging into the power battery.
According to the technical scheme of the embodiment, when the vehicle brakes or slides, the recovered electric quantity of the electric energy recovered among the wheels is obtained, and if the current environment temperature is not higher than the preset temperature, the electric energy recovered among the wheels is utilized to charge the battery; if current ambient temperature is greater than preset the temperature, then according to retrieving electric quantity adjustment battery target temperature, make the round retrieve the electric energy and be used for reducing coolant liquid temperature to guarantee that battery target temperature is in reasonable temperature range, when round retrieve the electric energy when more, can be used for reducing coolant liquid temperature with partly round retrieve the electric energy, retrieve the electric energy and deposit to power battery between all the other rounds. The invention solves the problems that the energy form is converted for a plurality of times in the process of converting mechanical energy into electric energy, converting the electric energy into chemical energy and converting the chemical energy into the electric energy again in the conventional vehicle braking energy recovery, and the energy recovery utilization rate is low, realizes that the vehicle braking recovery energy is directly used for vehicle refrigeration, directly converts the recovered energy into cold energy when the environmental temperature is higher, and reduces the effect of energy conversion loss.
EXAMPLE III
The vehicle energy recovery and distribution device provided by the embodiment of the invention can execute the vehicle energy recovery and distribution method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method. Fig. 4 is a block diagram of a vehicle energy recovery and distribution device according to a third embodiment of the present invention, and as shown in fig. 4, the device includes: a recovered charge determination module 310 and a first energy distribution module 320.
And a recovered electric quantity determining module 310, configured to obtain a recovered electric quantity of the recovered electric energy between the wheels when the vehicle brakes or coasts.
The first energy distribution module 320 is configured to adjust the target temperature of the battery according to the recovered electric quantity if the current ambient temperature is greater than a preset temperature, so that the inter-wheel recovered electric energy is used for reducing the temperature of the cooling liquid.
According to the technical scheme, when the vehicle brakes or slides, the recovery electric quantity of the electric energy recovered between the wheels is obtained, if the current environment temperature is higher than the preset temperature, the target temperature of the battery is adjusted according to the recovery electric quantity, and the electric energy recovered between the wheels is used for reducing the temperature of the cooling liquid. The invention solves the problems that the energy form is converted for a plurality of times in the process of converting mechanical energy into electric energy, converting the electric energy into chemical energy and converting the chemical energy into the electric energy again in the conventional vehicle braking energy recovery, and the energy recovery utilization rate is low, realizes that the vehicle braking recovery energy is directly used for vehicle refrigeration, directly converts the recovered energy into cold energy when the environmental temperature is higher, and reduces the effect of energy conversion loss.
Optionally, the apparatus further comprises a second energy distribution module 330, and the second energy distribution module 330 is configured to:
and if the current environment temperature is less than or equal to the preset temperature, charging the battery by using the electric energy recovered between the wheels.
Optionally, the first energy distribution module 320 is specifically configured to:
if the current environment temperature is higher than the preset temperature, determining a target temperature adjustment value according to the recovered electric quantity;
acquiring a current battery target temperature, and determining the difference between the current battery target temperature and the target temperature adjustment value as an adjusted battery target temperature;
if the adjusted target temperature of the battery is lower than the minimum target temperature, determining actual temperature adjustment electric quantity according to the minimum target temperature, and using the inter-wheel recovered electric energy corresponding to the actual temperature adjustment electric quantity for reducing the temperature of the cooling liquid; if not, then,
and electric energy is recovered between all wheels to reduce the temperature of the cooling liquid.
Optionally, the first energy distribution module 320 is further configured to:
determining the difference value between the recovered electric quantity and the actual temperature-regulating electric quantity as the generated electric quantity while the inter-wheel recovered electric energy corresponding to the actual temperature-regulating electric quantity is used for reducing the temperature of the cooling liquid;
and charging the battery by using the electric energy recovered between the wheels corresponding to the generated electric quantity.
According to the technical scheme of the embodiment, when the vehicle brakes or slides, the recovered electric quantity of the electric energy recovered among the wheels is obtained, and if the current environment temperature is not higher than the preset temperature, the electric energy recovered among the wheels is utilized to charge the battery; if current ambient temperature is greater than preset the temperature, then according to retrieving electric quantity adjustment battery target temperature, make the round retrieve the electric energy and be used for reducing coolant liquid temperature to guarantee that battery target temperature is in reasonable temperature range, when round retrieve the electric energy when more, can be used for reducing coolant liquid temperature with partly round retrieve the electric energy, retrieve the electric energy and deposit to power battery between all the other rounds. The invention solves the problems that the energy form is converted for a plurality of times in the process of converting mechanical energy into electric energy, converting the electric energy into chemical energy and converting the chemical energy into the electric energy again in the conventional vehicle braking energy recovery, and the energy recovery utilization rate is low, realizes that the vehicle braking recovery energy is directly used for vehicle refrigeration, directly converts the recovered energy into cold energy when the environmental temperature is higher, and reduces the effect of energy conversion loss.
Example four
Fig. 5 is a block diagram of a vehicle according to a fourth embodiment of the present invention, as shown in fig. 5, the vehicle includes a processor 410, a memory 420, an input device 430, and an output device 440; the number of processors 410 in the vehicle may be one or more, and one processor 410 is taken as an example in fig. 5; the processor 410, memory 420, input device 430, and output device 440 in the vehicle may be connected by a bus or other means, as exemplified by the bus connection in fig. 5.
The memory 420, as a computer-readable storage medium, may be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the vehicle energy recovery distribution method in the embodiment of the present invention (e.g., the recovered electric quantity determination module 310 and the first energy distribution module 320 in the vehicle energy recovery distribution device). The processor 410 executes various functional applications and data processing of the vehicle by executing software programs, instructions and modules stored in the memory 420, so as to implement the vehicle energy recovery and distribution method.
The memory 420 may mainly include a program storage area and a data storage area, wherein the program storage 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 memory 420 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 memory 420 may further include memory located remotely from the processor 410, 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 430 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the vehicle. The output device 440 may include a display device such as a display screen.
EXAMPLE five
Embodiments of the present invention also provide a storage medium containing computer-executable instructions which, when executed by a computer processor, perform a vehicle energy recovery distribution method, the method comprising:
when the vehicle brakes or slides, acquiring the recovered electric quantity of the recovered electric energy among the wheels;
and if the current environment temperature is larger than the preset temperature range, adjusting the target temperature of the battery according to the recovered electric quantity, so that the inter-wheel recovered electric energy is used for reducing the temperature of the cooling liquid.
Of course, the storage medium containing the computer-executable instructions provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the vehicle energy recovery and distribution method provided by any embodiments of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the vehicle energy recovery and distribution device, the included units and modules are only divided according to the functional logic, but are not limited to the above division as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
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. A vehicle energy recovery distribution method, comprising:
when the vehicle brakes or slides, acquiring the recovered electric quantity of the recovered electric energy among the wheels;
if the current environment temperature is higher than the preset temperature, adjusting the target temperature of the battery according to the recovered electric quantity, so that the inter-wheel recovered electric energy is used for reducing the temperature of the cooling liquid;
according to retrieve the electric quantity adjustment battery target temperature, make between the wheel retrieve the electric energy and be used for reducing coolant temperature, include:
determining a target temperature adjustment value according to the recovered electric quantity;
acquiring a current battery target temperature, and determining the difference between the current battery target temperature and the target temperature adjustment value as an adjusted battery target temperature;
if the adjusted target temperature of the battery is lower than the minimum target temperature, determining actual temperature adjustment electric quantity according to the minimum target temperature, and using the inter-wheel recovered electric energy corresponding to the actual temperature adjustment electric quantity for reducing the temperature of the cooling liquid; if not, then,
and electric energy is recovered between all wheels to reduce the temperature of the cooling liquid.
2. The vehicle energy recovery distribution method according to claim 1, further comprising:
and if the current environment temperature is less than or equal to the preset temperature, charging the battery by using the electric energy recovered between the wheels.
3. The vehicle energy recovery and distribution method according to claim 1, wherein the method further includes, while using the inter-wheel recovered electric energy corresponding to the actual temperature-adjustment electric quantity for reducing the temperature of the coolant:
determining the difference value between the recovered electric quantity and the actual temperature-regulating electric quantity as a power generation electric quantity;
and charging the battery by using the electric energy recovered between the wheels corresponding to the generated electric quantity.
4. A vehicle energy recovery and distribution device, comprising:
the recovery electric quantity determining module is used for acquiring the recovery electric quantity of the recovered electric energy between the wheels when the vehicle brakes or slides;
the first energy distribution module is used for adjusting the target temperature of the battery according to the recovered electric quantity if the current environment temperature is greater than the preset temperature, so that the inter-wheel recovered electric energy is used for reducing the temperature of the cooling liquid;
the first energy distribution module is specifically configured to:
if the current environment temperature is higher than the preset temperature, determining a target temperature adjustment value according to the recovered electric quantity;
acquiring a current battery target temperature, and determining the difference between the current battery target temperature and the target temperature adjustment value as an adjusted battery target temperature;
if the adjusted target temperature of the battery is lower than the minimum target temperature, determining actual temperature adjustment electric quantity according to the minimum target temperature, and using the inter-wheel recovered electric energy corresponding to the actual temperature adjustment electric quantity for reducing the temperature of the cooling liquid; if not, then,
and electric energy is recovered between all wheels to reduce the temperature of the cooling liquid.
5. The vehicle energy recovery distribution device according to claim 4, further comprising:
and the second energy distribution module is used for charging the battery by using the electric energy recovered between the wheels if the current environment temperature is less than or equal to the preset temperature.
6. The vehicle energy recovery distribution device of claim 4, wherein the first energy distribution module is further configured to:
determining the difference value between the recovered electric quantity and the actual temperature-regulating electric quantity as the generated electric quantity while the inter-wheel recovered electric energy corresponding to the actual temperature-regulating electric quantity is used for reducing the temperature of the cooling liquid;
and charging the battery by using the electric energy recovered between the wheels corresponding to the generated electric quantity.
7. A vehicle, characterized in that the vehicle comprises:
one or more processors;
a memory for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the vehicle energy recovery distribution method of any of claims 1-3.
8. A storage medium containing computer executable instructions for performing the vehicle energy recovery distribution method of any one of claims 1-3 when executed by a computer processor.
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