New energy vehicle battery temperature cooperative regulation method and system based on dynamic partitioning

Abstract

The present application relates to the technical field of automobile power battery thermal management, and particularly relates to a new energy automobile battery temperature cooperative regulation method and system based on dynamic partitioning. The method comprises, according to the principle of safety protection priority, cooperatively allocating thermal management resources according to temperature control requirements and current thermal management resource states, generating an execution command and issuing an executor; processing exceptions according to execution feedback, and performing hierarchical recovery and version updating after continuous health. The present application combines the thermal state, thermal adjacency relationship and execution channel constraints of the basic control unit, dynamically changes the boundary of the temperature control partitioning only when the thermal response is differentiated and the local branch has differential regulation capability, and continuously constrains the requirements, commands and feedbacks with the partitioning version, so as to improve the corresponding degree of local hot spots and regulation channels, keep the control boundary consistent with the actual pump valve capability, and thus relieve the problems of fixed physical partitioning masking the heat accumulation of central modules, the cold bias of edge modules and the frequent changes of partitioning boundaries.

Description

Technical Field

[0001] This invention belongs to the field of automotive power battery thermal management technology, specifically relating to a method and system for coordinated temperature regulation of new energy vehicle batteries based on dynamic zoning. Background Technology

[0002] New energy commercial vehicles are typically equipped with power batteries that have large capacity, numerous modules, and long battery packs. These vehicles operate continuously for long periods, and their driving load and environmental conditions change frequently. The wind and heat conditions at the front, rear, and chassis of the vehicle differ, and the heat transfer path in the central area of ​​the battery pack is relatively long. Therefore, under the same charging and discharging conditions, different modules will produce different temperature responses.

[0003] Existing integrated temperature control strategies typically rely on the overall temperature of the battery pack, uniformly heating, cooling, or maintaining a constant temperature for all modules. However, the overall temperature smooths out local differences; while the central module may have accumulated heat, the edge modules may still be at a lower temperature. Unified enhanced cooling will further suppress the edge temperature, while unified weakened cooling will prolong the central hot spot, thereby widening the temperature difference between modules and affecting the consistency of cell operation.

[0004] Existing solutions predefine several fixed areas based on the physical location of the modules, but these are difficult to adapt to changing conditions such as high-speed driving, heavy-load climbing, cold starts at low temperatures, and high-temperature idling. When the temperature rise trends of adjacent modules diverge, the fixed areas still receive the same command, leading to localized adjustment lag. When multiple areas chase their own temperatures, they may alternately strengthen and weaken cooling, resulting in repeated fluctuations in temperature difference and frequent switching of actuators.

[0005] In existing controllers, heating, cooling, and insulation functions may be decided separately. However, the capabilities of shared pumps, refrigeration circuits, and local valves are interconnected, and heating requests from one area and cooling requests from adjacent areas may simultaneously occupy the same execution channel. Without unified arbitration, resource contention can lead to conflicting commands, wasted energy, and unmet local demands. If sensor distortion, communication interruptions, or valve malfunctions continue to trigger normal decision-making, the controller may mistakenly interpret issued commands as having generated a corresponding thermal response.

[0006] To address the aforementioned issues, this invention proposes a method and system for coordinated temperature regulation of new energy vehicle batteries based on dynamic partitioning. Summary of the Invention

[0007] To address the aforementioned problems in the prior art, the present invention aims to provide a method and system for coordinated temperature regulation of new energy vehicle batteries based on dynamic partitioning.

[0008] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows: A method for coordinated temperature regulation of new energy vehicle batteries based on dynamic partitioning includes: The battery pack is divided into multiple basic control units, and thermal adjacency relationships and execution channel constraints are established between the basic control units. Temperature data, operating condition data and actuator feedback data of each basic control unit are collected according to a unified time base to form a synchronous data snapshot. Perform validity checks on each temperature measuring point to determine the thermal state and data reliability level of each basic control unit; based on thermal adjacency relationships and execution channel constraints, dynamically generate temperature control zones according to the temperature difference and temperature rise trend difference between each basic control unit, and record the zone boundary changes with a zone version. The temperature control requirements of each dynamic temperature control zone are determined based on the thermal status of each zone; in accordance with the principle of prioritizing safety protection, thermal management resources are allocated collaboratively based on the temperature control requirements and the current status of thermal management resources, execution commands are generated and issued to the actuators; anomalies are handled based on execution feedback, and tiered recovery and version updates are performed after continuous health.

[0009] Preferably, the battery pack is divided into multiple basic control units, and thermal adjacency relationships and execution channel constraints are established between the basic control units, including: Each basic control unit corresponds to a module that can be differentially adjusted or a group of adjacent modules that share an inseparable execution channel, and saves a fixed physical identity and a variable partition identity; thermal adjacency relationships are established according to physical adjacency, cooling branch association and shared thermal management resources; units that share the same inseparable valve or heating branch are kept within the same executable boundary by execution channel constraints.

[0010] Preferably, temperature data, operating condition data, and actuator feedback data of each basic control unit are collected according to a unified time base to form a synchronous data snapshot, including: The latest data within the allowable deviation is written to the current snapshot. Data exceeding the allowable deviation but still within the preset lag range is marked as lag for trend judgment. Data exceeding the preset expiration threshold is marked as expired and its source status is retained. When operating condition data is missing for a short period of time, the most recent valid operating condition label is retained. After the retention period expires, the operating condition correction is bypassed, and the demand is determined by the reliable temperature and the highest effective temperature.

[0011] Preferably, an effectiveness check is performed on each temperature measuring point to determine the thermal state and data reliability level of each basic control unit, including: Each temperature measurement point undergoes physical effective range checks, sampling freshness checks, and adjacent sampling jump checks; the thermal status record is indexed by the basic control unit and carries the representative temperature, the highest effective temperature, the temperature rise trend, and the data reliability level; the representative temperature is used for zoning and temperature control status judgment, the highest effective temperature is used for safety protection judgment, and the data reliability level is used to determine whether the record can participate in zoning splitting, merging, and recovery judgment; when all measurement points fail, the fine zoning identity is frozen, and the basic control unit returns to the physical basic zoning.

[0012] Preferably, based on thermal adjacency relationships and execution channel constraints, temperature control zones are dynamically generated according to the temperature differences and temperature rise trend differences between each basic control unit, including: For adjacent basic control units that can accept different commands, when either the difference representing temperature difference or temperature rise trend difference reaches the corresponding threshold and is continuously confirmed for a period of time, the unit that is hotter or heats up faster is removed; when the difference representing temperature difference and temperature rise trend difference of adjacent partitions both fall below the corresponding threshold and the temperature control status is consistent and maintained for a preset time, the partitions are merged; when a partition is split or merged, a partition version is added and the boundary is maintained for a preset minimum dwell time; when the number of boundary changes reaches the locking threshold, the relevant boundary is locked.

[0013] Preferably, the temperature control requirements of each dynamic temperature control zone are determined based on the thermal state of each zone, including: Temperature control requirements include zone adjustment direction, target temperature range, demand intensity, urgency, and permitted execution method; the representative temperature of a zone determines the general adjustment state, the highest effective temperature within a zone and the hot spot within a zone are responsible for covering the general state to maintain the safety of local high temperatures; hysteresis is set between the entry boundary and the exit boundary.

[0014] Preferably, in accordance with the principle of prioritizing safety protection, thermal management resources are allocated collaboratively based on temperature control requirements and the current status of thermal management resources, including: Demands are compared in the following order: safety protection, temperature difference suppression, target temperature approach, and energy consumption constraints. Safety requirements are prioritized for capacity acquisition, while ordinary requirements are assessed based on the direction of temperature deviation and the duration of the deviation. When heating and cooling requests occur simultaneously on the same execution channel, the direction of the safety hotspot takes priority. Before switching directions, it is confirmed that the power in the original direction has dropped and that the interlocking time has elapsed. The total capacity of shared equipment is set at the level that can support the highest priority demand, and then each local branch accepts the target value based on the demand of its own zone and the temperature difference between adjacent zones.

[0015] Preferably, generating and issuing execution commands to the executor includes: The execution command carries the control cycle, partition version, executor identity, target value, validity period, and verification status. The execution end checks the partition version, control cycle, and verification status. Commands with the same version and still within the validity period are executed. Older versions or expired commands keep the execution end in the most recent valid security target and return a version mismatch or command expiration status. When the deviation between the target and the actual feedback continues to exceed the allowable deviation, the relevant execution channel enters a restricted state.

[0016] Preferably, exceptions are handled based on execution feedback, and tiered recovery and version updates are performed after continuous health status, including: If a single point of data is abnormal, bypass the measurement point and retain the remaining valid measurement points; if the basic control unit is blind, bypass fine splitting and merging and return to the physical basic partition; if a local actuator is restricted, maintain its reachable safe target and then allocate the remaining capacity to the available channel; if the shared pump or refrigeration circuit is disconnected, maintain the preset safe state and request the vehicle to limit power; after the data is valid, time synchronization and execution deviation remain healthy within the preset time, first release the fault lock and then run with the restricted target. If the thermal response direction is correct during the restricted operation, receive the recovery permission and generate a new version.

[0017] This invention also provides a new energy vehicle battery temperature collaborative regulation system based on dynamic partitioning, comprising: The thermal status acquisition module is used to collect temperature data, operating condition data and actuator feedback data of each basic control unit according to a unified time base, form a synchronous data snapshot, perform validity checks on each temperature measurement point, and determine the thermal status and data reliability level of each basic control unit. The dynamic partitioning module is used to dynamically generate temperature control partitions based on thermal adjacency relationships and execution channel constraints, according to the temperature difference and temperature rise trend difference between each basic control unit, and to record the partition boundary changes in partition versions. The collaborative adjustment module is used to determine the temperature control requirements of each dynamic temperature control zone based on the thermal state of each zone, and to collaboratively allocate thermal management resources according to the temperature control requirements and the current thermal management resource status in accordance with the principle of safety protection priority, and to generate execution commands and send them to the actuators. The feedback recovery module is used to handle exceptions based on execution feedback and perform tiered recovery and version updates after continuous health.

[0018] Beneficial effects 1. This invention combines the thermal state and thermal adjacency relationship of the basic control unit with the constraints of the execution channel. The dynamic temperature control partition only changes the boundary when the thermal response is differentiated and the local branches have differential adjustment capabilities. The partition version continuously constrains the demand, command and feedback, thereby improving the correspondence between local hot spots and adjustment channels, keeping the control boundary consistent with the actual pump and valve capabilities, and thus alleviating the problems of fixed physical partitions masking the heat accumulation of the central module, the coldness of the edge modules and the frequent changes of the partition boundary.

[0019] 2. This invention is based on the collaborative arbitration of zoned temperature control requirements and thermal management resource status. It first determines the relative priority of safety protection and temperature difference suppression, then configures the total capacity of shared equipment and local branch targets, and maintains continuous execution of constraints through directional interlocks and commands. This can reduce hot and cold conflicts on the same execution channel, stabilize the distribution of limited pump speed and cooling capacity among zones, and thus alleviate the problems of mutual cancellation of local requests, frequent switching of shared equipment, and failure to respond to hot spot demands in a timely manner.

[0020] 3. This invention employs a feedback path that combines data reliability checks, partition version verification, execution deviation checks, and hierarchical recovery. This allows sensor anomalies, communication timeouts, and actuator failures to enter alternative or degraded states commensurate with their impact range. After continuous health, dynamic partition control is gradually returned to the control, thereby maintaining the thermal regulation direction and safety boundary during anomalies, shortening the duration of erroneous data or old commands, reducing the risk of local faults expanding into full-coverage temperature mismatch, and improving the stability of control recovery. Attached Figure Description

[0021] Figure 1 This is a flowchart of the method of the present invention; Figure 2 This is a system module diagram of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the invention and are not intended to limit the scope of protection of the invention.

[0023] Example 1 Please see Figure 1 As shown, this embodiment provides a method for coordinated temperature regulation of new energy vehicle batteries based on dynamic partitioning. The method includes the following steps: S1. Divide the battery pack into basic control units and establish thermal adjacency relationships and execution channel constraints; The battery pack of a new energy vehicle is divided into multiple basic control units. Each basic control unit corresponds to a module that can be adjusted differently or a group of adjacent modules that share an inseparable execution channel, and stores a fixed physical identity and a variable partition identity. The fixed physical identity is used to determine the module location, cooling branch, adjacent units, and available execution channels; the variable partition identity is used to record the current dynamic temperature control partition, partition version, temperature control status, and control priority.

[0024] Basic control units are thermally adjacent based on physical proximity, cooling branch association, and shared thermal management resources. Only units within this relationship participate in boundary comparison. Units sharing the same inseparable valve or heating branch are kept within the same actuable boundary by actuation channel constraints. Units with higher temperatures can be marked as hotspots within a zone to increase the demand level of that actuation channel.

[0025] S2. Collect data according to a unified time base and create a synchronous data snapshot; Temperature sampling, coolant status, actuator feedback, and vehicle operating conditions of each basic control unit are received by the controller according to a unified time base. A synchronous data snapshot refers to a set of time-aligned and valid temperature, operating condition, and feedback records within a control cycle, used to isolate data from different cycles. The acquisition period can be selected from 50 to 200 milliseconds, preferably 100 milliseconds; the control period can be selected from 0.5 to 2 seconds, preferably 1 second; the allowable time deviation can be selected from 100 to 200 milliseconds, preferably 120 milliseconds.

[0026] The latest data within the allowable deviation is written to the current snapshot; data exceeding the allowable deviation but within 1 second is marked as lagging and used only for trend judgment; data exceeding 1 second is marked as expired and its source status is retained. When operating condition data is temporarily missing, the current snapshot retains the most recent valid operating condition label. The operating condition label indicates heat dissipation conditions such as high-load driving, low-temperature start-up, or normal operation. Its retention time can be 2 to 5 seconds, preferably 3.5 seconds. After the retention time expires, the controller bypasses operating condition correction and instead determines conservative requirements based on the reliable temperature and the highest effective temperature.

[0027] S3. Perform an effectiveness check on the temperature measuring points and determine the thermal status of each basic control unit; The synchronous data snapshot enters the thermal state determination process. Each temperature measurement point first undergoes physical effective range, sampling freshness and adjacent sampling jump checks. The effective lower limit of temperature can be selected in the range of -40 to -30 degrees Celsius, preferably -40 degrees Celsius; the effective upper limit can be selected in the range of 100 to 120 degrees Celsius, preferably 120 degrees Celsius; the jump threshold can be selected in the range of 6 to 10 degrees Celsius.

[0028] The thermal status record is an indexed record of the basic control unit, carrying representative temperature, maximum effective temperature, temperature rise trend, and data reliability level. The representative temperature is used for general zoning and temperature control status judgment; the median of valid measurement points can be selected. The maximum effective temperature is used for safety protection judgment. The temperature rise trend is expressed in degrees Celsius per minute; an increase in the value indicates increased heat generation. The trend window can be selected within the range of 5 to 20 seconds, preferably 10 seconds. The data reliability level determines whether the record can participate in splitting, merging, and recovery judgments, and accordingly determines high, medium, low, and blind states based on the number of valid measurement points and the anomaly type.

[0029] Single-point anomalies in the thermal state record retain their original values ​​and anomaly flags. When a basic control unit still has multiple valid measurement points, the temperature is determined by these valid points, and the confidence level is correspondingly reduced. When only a single valid measurement point remains, the record continues to participate in safety direction judgment, but bypasses small temperature difference merging. When all measurement points fail, the fine-grained partition identity is frozen, and the basic control unit reverts to the pre-registered physical basic partition. The physical basic partition is a pre-determined degraded control range based on an inseparable execution channel, used to maintain a safety loop when observations are insufficient. The higher confidence temperature and current load of adjacent units can be used to form a conservative demand, which carries an assumed state and is stored separately from the actual measurement record.

[0030] S4. Generate dynamic temperature control zones based on thermal adjacency relationships and execution channel constraints; The reliable thermal state and the partition description from the previous control cycle enter the dynamic partitioning process together: the partition description records the member range, boundary state, partition version, formation reason, and effective period, where the member range defines the basic control unit controlled by the partition, and the boundary state stores the split, hold, merge, or lock results. Adjacent basic control units capable of accepting different commands have representative temperature difference thresholds selectable within the range of 2 to 4 degrees Celsius, preferably 3 degrees Celsius; temperature rise trend difference thresholds selectable within the range of 0.5 to 1 degree Celsius per minute, preferably 1 degree Celsius per minute; and confirmation time selectable within the range of 3 to 10 seconds, preferably 5 seconds. If any difference reaches the corresponding threshold and persists until the confirmation time, the hotter or faster-heating unit is removed.

[0031] The representative temperature difference drop threshold between adjacent zones can be selected in the range of 0.5 to 1.5 degrees Celsius, preferably 0.5 degrees Celsius; the trend difference drop threshold can be selected in the range of 0.2 to 0.5 degrees Celsius per minute, preferably 0.2 degrees Celsius per minute; and the zones are merged only when the temperature control status is consistent and maintained for 30 to 60 seconds, preferably 60 seconds.

[0032] When a partition description completes a split or merge, a partition version is added, and the boundary is maintained for a minimum dwell time of 20 to 40 seconds, preferably 30 seconds. The controller then calculates the frequency of boundary changes; when the number of changes reaches a locking threshold, the relevant boundary is maintained for 60 to 120 seconds, with the locking threshold preferably being 3 changes. Security protection requirements can override the dwell and locking states. When a candidate split falls within a shared, inseparable execution channel, the partition members remain unchanged, and the hottest unit becomes a hotspot within the partition. This hotspot flag is then used for temperature control requirement judgment, allowing for increased priority of the shared channel even when the hardware boundary remains unchanged.

[0033] S5. Determine the temperature control requirements of each dynamic temperature control zone based on the thermal status of the zones. The zone description, along with the maximum effective temperature, temperature rise trend, and operating condition label, constitutes the temperature control requirements. Temperature control requirements are control records used to specify the direction of zone adjustment, target temperature range, demand intensity, urgency, and permissible execution methods. The low-temperature heating threshold can be selected within the range of 5 to 15 degrees Celsius, preferably 5 degrees Celsius; the primary cooling threshold can be selected within the range of 33 to 38 degrees Celsius, preferably 33 degrees Celsius; the secondary cooling threshold can be selected within the range of 38 to 45 degrees Celsius, preferably 38 degrees Celsius; and the safety protection temperature can be selected within the range of 50 to 60 degrees Celsius, preferably 50 degrees Celsius.

[0034] A hysteresis of 1 to 3 degrees Celsius is set between the entry and exit boundaries, preferably 1 degree Celsius; the confirmation and dwell time for the general state can be selected within the range of 5 to 30 seconds, with safety protection directly taking the highest priority. The representative temperature of the zone determines the general regulation state, and the highest effective temperature and hot spot within the zone are responsible for covering the general state, thereby ensuring that local high temperatures maintain the right to determine safety.

[0035] S6. Allocate thermal management resources in a coordinated manner according to the principle of prioritizing safety protection; Temperature control requirements and the current status of thermal management resources enter a coordinated allocation process: the status of thermal management resources indicates the current available capacity and fault limitations of shared pumps, refrigeration circuits, branch valves, and heating channels. The controller compares requirements in the order of safety protection, temperature difference suppression, target temperature approach, and energy consumption constraints; safety requirements acquire capacity first, and ordinary requirements then accept remaining capacity according to the direction of temperature deviation and the ongoing status. When heating and cooling requests occur simultaneously on the same execution channel, the direction of the safety hotspot takes priority. Before switching directions, it is confirmed that the power in the original direction has dropped, and an interlocking time of 1 to 3 seconds is performed, preferably 1 second. Physically isolated branches maintain their respective adjustment directions, and the total capacity of shared equipment is set to the level that can support the highest priority demand. Then, each local branch accepts the target value according to the demand of its own zone and the temperature difference between adjacent zones.

[0036] S7. Generate an execution command with partition version and expiration date and issue it to the executor. The collaborative allocation results are written as execution commands. An execution command is a control record carrying the control cycle, partition version, executor identity, target value, validity period, and verification status, used by the executor to identify the partition decision to which the command belongs. The command validity period can be selected from 1 to 3 seconds, preferably 2 seconds; ordinary target changes are constrained by a minimum hold time of 3 to 10 seconds, and security protection commands directly overwrite ordinary hold states. The executor verifies the partition version, control cycle, and verification status; commands with matching versions and still within their validity period are executed; older versions or expired commands keep the executor holding the most recent valid security target and return a version mismatch or command expiration status. This returned status is then used by the controller to prevent older commands from overwriting new partition results.

[0037] After executing commands to drive pumps, valves, heaters, and refrigeration circuits, the actuator returns command confirmation, actual values, arrival status, and fault status. Execution feedback is a record that correlates the command target, the actual actuator action, and the subsequent thermal response, used to determine whether the adjustment actually occurred. The allowable deviation between the target and actual feedback can be selected within the range of 10 to 20 percentage points, preferably 15 percentage points; the anomaly confirmation time can be selected within the range of 2 to 5 seconds, preferably 3 seconds; when the deviation continuously exceeds the boundary, the relevant execution channel enters a restricted state. The controller also checks the direction of temperature change in the subsequent trend window. If the actuator is in place but the thermal response direction is opposite, the demand is still marked as unmet, and based on this, available capacity is reallocated or a request is made for the entire vehicle to reduce its charging and discharging load.

[0038] S8. Handle exceptions based on execution feedback and perform tiered recovery and version update; Data anomalies, communication timeouts, actuator limitations, partition jitter, insufficient capacity, and safety breaches in the execution feedback are categorized as abnormal states. These abnormal states are used to determine the scope of impact and the direction of degradation. For single-point data anomalies, the affected measurement point is bypassed while other valid measurement points are retained. When the basic control unit is blind, the bypass is finely split and merged, and the system returns to the physical basic partition. When a local actuator is limited, its achievable safe target is maintained, and the remaining capacity is allocated to available channels. When a shared pump or refrigeration circuit is disconnected, the preset safe state is maintained, and a vehicle power limit is requested. Recovery permission is a state that allows for the gradual return of control after continuous health. After data validity, time synchronization, and execution deviation remain healthy within 20 to 60 seconds, the controller first releases the fault lock and then runs with the limited target for 20 to 60 seconds. If the thermal response direction is correct during the limited operation, the dynamic partitioning process receives the recovery permission and generates a new version. Abnormal states and recovery permission are ultimately written back to the next synchronized data snapshot, forming a continuous closed loop of acquisition, partitioning, coordinated adjustment, and recovery.

[0039] Example 2 Please see Figure 2 As shown, this embodiment provides a new energy vehicle battery temperature collaborative regulation system based on dynamic partitioning, including the following modules: The thermal state acquisition module is used to acquire the thermal state of the battery basic control unit. This module connects to temperature measurement points, the vehicle operating condition interface, and the actuator feedback interface, creating a synchronous data snapshot based on a unified time base. It checks the freshness and validity of the temperature data and outputs a thermal state record with a data reliability level. If operating condition data is missing within the allowable retention time, this module outputs a "use as is" status; after the retention time expires, it outputs an operating condition bypass status, enabling subsequent modules to operate based on the reliable temperature and the highest effective temperature. When the quality of temperature measurement points deteriorates, this module retains valid measurement points, lowers the data reliability level, and provides the dynamic zoning module with control conditions that prohibit small temperature difference merging or revert to the physical basic zoning.

[0040] The module takes temperature sampling, vehicle operating conditions, and actuator feedback as inputs and outputs synchronous data snapshots and thermal status records. The thermal status records are sent to the dynamic partitioning module, the highest effective temperature and operating condition labels are sent to the collaborative adjustment module, and the quality status is simultaneously sent to the feedback recovery module.

[0041] The dynamic partitioning module generates dynamic temperature-controlled partitions based on thermal adjacency relationships and execution channel constraints. This module receives thermal state records, the previous partition description, and recovery permission output from the feedback recovery module. Splitting or merging is only performed when the thermal state is reliable and the execution channel can be differentially adjusted. The resulting partition description carries the member range, boundary status, and partition version, and is provided to both the coordination adjustment module and the feedback recovery module. A data quality bypass state keeps this module in place of the most recently valid partition or the physical base partition; when boundaries change frequently, the module locks the corresponding boundaries; after receiving consecutive healthy recovery permission requests, the module unlocks and resumes control with the new partition version.

[0042] The inputs to this module are thermal state records, previous partition description, thermal adjacency relationships, execution channel constraints, and recovery permissions. The output is a partition description with partitioned versions, which is used by the collaborative adjustment module to determine temperature control requirements and by the feedback recovery module to verify the feedback version.

[0043] The coordinated control module determines the temperature control requirements of each zone and coordinates the allocation of thermal management resources. This module receives zone descriptions, maximum effective temperatures, operating condition labels, and available actuator capabilities. It generates zone-specific temperature control requirements and allocates shared and local capabilities according to the relative order of safety protection, temperature difference suppression, target temperature approximation, and energy consumption constraints. The output execution commands are transmitted to pumps, branch valves, heaters, and refrigeration circuits. The command validity period and directional interlock status are transmitted along with the commands. In cases of insufficient resources or conflicts between hot and cold directions, this module retains the requirements of safety hotspots, transmits unmet conditions to the feedback recovery module, and outputs a load limit request to the vehicle control interface.

[0044] The module takes as input a partition description, maximum effective temperature, operating condition label, available thermal management resources, and the restricted status returned by the feedback recovery module. Its output is an execution command with partitioned specifications. The execution command is sent to the thermal management actuator, and the actuator's confirmation and actual action then enter the feedback recovery module.

[0045] The feedback recovery module is used to handle anomalies based on execution feedback and update the dynamic temperature control partition. This module receives actuator confirmation, actual actions, and subsequent thermal responses, and compares the partition version of the executed command with the current version; the old version feedback is returned to the coordination module, maintaining the most recent valid safety target. When actual actions deviate or the thermal response direction is abnormal, this module outputs a restricted status, controlling the coordination module to reconfigure resources. After data, communication, and execution actions are continuously healthy, the feedback recovery module first outputs a restricted recovery target, and then outputs a recovery permission to the dynamic partition module. If a safety boundary violation occurs during recovery, the safety protection status is directly returned to the coordination module. Thus, thermal status records flow sequentially into the dynamic partition module and the coordination module, and execution feedback is then returned to the thermal status acquisition module and the dynamic partition module via the feedback recovery module, forming a closed loop from acquisition, judgment, execution to recovery.

[0046] The module's inputs include confirmation of the executed command, actual actions, subsequent thermal response, and quality status. Its outputs are abnormal status, degradation control results, and recovery permission. Abnormal status is sent back to the thermal status acquisition module, degradation control results are sent back to the collaborative adjustment module, recovery permission is sent to the dynamic zoning module, and vehicle load limit requests are transmitted to the vehicle control interface.

[0047] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for coordinated temperature regulation of new energy vehicle batteries based on dynamic partitioning, characterized in that, include: The battery pack is divided into multiple basic control units, and thermal adjacency relationships and execution channel constraints are established between the basic control units. Temperature data, operating condition data and actuator feedback data of each basic control unit are collected according to a unified time base to form a synchronous data snapshot. Perform validity checks on each temperature measuring point to determine the thermal status and data reliability level of each basic control unit; Based on thermal adjacency relationships and execution channel constraints, temperature control zones are dynamically generated according to the temperature difference and temperature rise trend difference between each basic control unit, and the zone boundary changes are recorded in a zone version. The temperature control requirements of each dynamic temperature control zone are determined based on the thermal status of each zone; in accordance with the principle of prioritizing safety protection, thermal management resources are allocated collaboratively based on the temperature control requirements and the current status of thermal management resources, execution commands are generated and issued to the actuators; anomalies are handled based on execution feedback, and tiered recovery and version updates are performed after continuous health.

2. The method for coordinated temperature regulation of new energy vehicle batteries based on dynamic partitioning according to claim 1, characterized in that, The battery pack is divided into multiple basic control units, and thermal adjacency relationships and execution channel constraints are established between these basic control units, including: Each basic control unit corresponds to a module that can be differentially adjusted or a group of adjacent modules that share an inseparable execution channel, and saves a fixed physical identity and a variable partition identity; thermal adjacency relationships are established according to physical adjacency, cooling branch association and shared thermal management resources; units that share the same inseparable valve or heating branch are kept within the same executable boundary by execution channel constraints.

3. The method for coordinated temperature regulation of new energy vehicle batteries based on dynamic partitioning according to claim 1, characterized in that, Temperature data, operating condition data, and actuator feedback data from each basic control unit are collected according to a unified time base to form a synchronous data snapshot, including: The latest data within the allowable deviation is written to the current snapshot. Data exceeding the allowable deviation but still within the preset lag range is marked as lag for trend judgment. Data exceeding the preset expiration threshold is marked as expired and its source status is retained. When operating condition data is missing for a short period of time, the most recent valid operating condition label is retained. After the retention period expires, the operating condition correction is bypassed, and the demand is determined by the reliable temperature and the highest effective temperature.

4. The method for coordinated temperature regulation of new energy vehicle batteries based on dynamic partitioning according to claim 1, characterized in that, Perform validity checks on each temperature measuring point to determine the thermal status and data reliability level of each basic control unit, including: Each temperature measurement point undergoes physical effective range checks, sampling freshness checks, and adjacent sampling jump checks; the thermal status record is indexed by the basic control unit and carries the representative temperature, the highest effective temperature, the temperature rise trend, and the data reliability level; the representative temperature is used for zoning and temperature control status judgment, the highest effective temperature is used for safety protection judgment, and the data reliability level is used to determine whether the record can participate in zoning splitting, merging, and recovery judgment; when all measurement points fail, the fine zoning identity is frozen, and the basic control unit returns to the physical basic zoning.

5. The method for coordinated temperature regulation of new energy vehicle batteries based on dynamic partitioning according to claim 1, characterized in that, Based on thermal adjacency relationships and execution channel constraints, temperature control zones are dynamically generated according to the temperature differences and temperature rise trend differences between each basic control unit, including: For adjacent basic control units that can accept different commands, when either the difference representing temperature difference or temperature rise trend difference reaches the corresponding threshold and is continuously confirmed for a period of time, the unit that is hotter or heats up faster is removed; when the difference representing temperature difference and temperature rise trend difference of adjacent partitions both fall below the corresponding threshold and the temperature control status is consistent and maintained for a preset time, the partitions are merged; when a partition is split or merged, a partition version is added and the boundary is maintained for a preset minimum dwell time; when the number of boundary changes reaches the locking threshold, the relevant boundary is locked.

6. The method for coordinated temperature regulation of new energy vehicle batteries based on dynamic partitioning according to claim 1, characterized in that, The temperature control requirements for each dynamic temperature control zone are determined based on the thermal state of each zone, including: Temperature control requirements include zone adjustment direction, target temperature range, demand intensity, urgency, and permitted execution method; the representative temperature of a zone determines the general adjustment state, the highest effective temperature within a zone and the hot spot within a zone are responsible for covering the general state to maintain the safety of local high temperatures; hysteresis is set between the entry boundary and the exit boundary.

7. The method for coordinated temperature regulation of new energy vehicle batteries based on dynamic partitioning according to claim 1, characterized in that, Following the principle of prioritizing safety protection, thermal management resources are allocated collaboratively based on temperature control requirements and the current status of thermal management resources, including: Demands are compared in the following order: safety protection, temperature difference suppression, target temperature approach, and energy consumption constraints. Safety requirements are prioritized for capacity acquisition, while ordinary requirements are assessed based on the direction of temperature deviation and the duration of the deviation. When heating and cooling requests occur simultaneously on the same execution channel, the direction of the safety hotspot takes priority. Before switching directions, it is confirmed that the power in the original direction has dropped and that the interlocking time has elapsed. The total capacity of shared equipment is set at the level that can support the highest priority demand, and then each local branch accepts the target value based on the demand of its own zone and the temperature difference between adjacent zones.

8. The method for coordinated temperature regulation of new energy vehicle batteries based on dynamic partitioning according to claim 1, characterized in that, Generate execution commands and issue them to the executor, including: The execution command carries the control cycle, partition version, executor identity, target value, validity period, and verification status. The execution end checks the partition version, control cycle, and verification status. Commands with the same version and still within the validity period are executed. Older versions or expired commands keep the execution end in the most recent valid security target and return a version mismatch or command expiration status. When the deviation between the target and the actual feedback continues to exceed the allowable deviation, the relevant execution channel enters a restricted state.

9. The method for coordinated temperature regulation of new energy vehicle batteries based on dynamic partitioning according to claim 1, characterized in that, Based on the execution feedback, exceptions are handled, and tiered recovery and version updates are performed after continuous health status is achieved, including: If a single point of data is abnormal, bypass the measurement point and retain the remaining valid measurement points; if the basic control unit is blind, bypass fine splitting and merging and return to the physical basic partition; if a local actuator is restricted, maintain its reachable safe target and then allocate the remaining capacity to the available channel; if the shared pump or refrigeration circuit is disconnected, maintain the preset safe state and request the vehicle to limit power; after the data is valid, time synchronization and execution deviation remain healthy within the preset time, first release the fault lock and then run with the restricted target. If the thermal response direction is correct during the restricted operation, receive the recovery permission and generate a new version.

10. A new energy vehicle battery temperature coordinated regulation system based on dynamic partitioning, characterized in that, include: The thermal status acquisition module is used to collect temperature data, operating condition data and actuator feedback data of each basic control unit according to a unified time base, form a synchronous data snapshot, perform validity checks on each temperature measurement point, and determine the thermal status and data reliability level of each basic control unit. The dynamic partitioning module is used to dynamically generate temperature control partitions based on thermal adjacency relationships and execution channel constraints, according to the temperature difference and temperature rise trend difference between each basic control unit, and to record the partition boundary changes in partition versions. The collaborative adjustment module is used to determine the temperature control requirements of each dynamic temperature control zone based on the thermal state of each zone, and to collaboratively allocate thermal management resources according to the temperature control requirements and the current thermal management resource status in accordance with the principle of safety protection priority, and to generate execution commands and send them to the actuators. The feedback recovery module is used to handle exceptions based on execution feedback and perform tiered recovery and version updates after continuous health.

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