MÉTODO E APARELHO DE CONTROLE PARA ENERGIA RECICLÁVEL EM VEÍCULO, DISPOSITIVO E VEÍCULO

Abstract

A control method for in-vehicle recoverable energy, applied to a chassis controller (10). The method comprises: acquiring first power in the process of vehicle running, wherein the first power is the remaining power obtained by deducting the recoverable power of an in-vehicle power battery (32) from the recoverable power of the entire vehicle; determining whether the first power is greater than or equal to a first preset value; if yes, generating a first control signal, wherein the first control signal comprises the first power and a first status flag, and the first status flag is used for indicating that there is surplus energy output during vehicle running; and sending the first control signal to a thermal management system TMS (20), wherein the first control signal is used for controlling the thermal management system TMS to use surplus energy to supply energy to an in-vehicle electric device, so that the thermal management system TMS transmits, on the basis of the first control signal, the surplus energy corresponding to recoverable power to the in-vehicle electric device, thereby achieving power supply to electric devices, and improving the utilization rate of surplus energy. The present application also relates to an apparatus, a device, and a vehicle.

Description

1 / 47 METHOD AND CONTROL APPARATUS FOR RECYCLABLE ENERGY IN VEHICLE, DEVICE AND VEHICLE Technical Field

[001] The present application relates to the technical field of vehicle control and, specifically, to a method and apparatus for controlling recyclable energy in a vehicle, a device and a vehicle. Technical Background

[002] At low temperatures, the activity of lithium ions in batteries decreases, leading to a relatively reduced capacity. As a result, the driving range of new energy vehicles is significantly affected at low temperatures, making the issue of low-temperature range increasingly prominent. From an energy consumption perspective, driving range is primarily determined by the magnitudes of drive power and non-drive power. Drive power depends on driver demand and is related to vehicle resistance and vehicle speed. Non-drive power mainly includes energy consumption from cabin heating, battery heating, and electrical vehicle accessories.

[003] From the perspective of energy input, current energy sources include battery charging and energy recycling. Furthermore, reducing vehicle resistance can effectively decrease drive power demand. Multiple measures, such as low aerodynamic drag and low rolling resistance, have been implemented to reduce drive power demand. However, it has been observed that, within non-drive power consumption, energy consumption from “cabin heating” and “battery heating” in a vehicle is also significant. Petition 870250084015, dated 09 / 18 / 2025, page 87 / 157 2 / 47 represents a significant proportion. To address the demand for energy consumption, manufacturers have developed an energy-saving mode for cabin heating, aiming to extend driving range. However, this requires a balance with user comfort. Furthermore, several trip-based algorithms have been proposed for battery heating to facilitate heating control, thereby avoiding wasted energy consumption during heating.

[004] Furthermore, a pre-heating strategy before charging has been proposed for battery warm-up to enhance battery capacity. However, this approach is generally more economical when pre-heating is performed in charging stacks. Regarding the recycling of remaining energy in a vehicle, under low temperature conditions, the recycled power of the battery is low, a significant portion of energy cannot be recycled, leading to the waste of this unrecyclable energy. For example, at normal temperatures, energy recycling efficiency can exceed 95%. At low temperatures, the battery charging power drops drastically, and the system's energy recycling efficiency falls to 10% to 20%. Consequently, 10% to 20% of recyclable energy is wasted. Summary

[005] One objective of the present application is to maximize the full utilization of energy that cannot be recycled. For example, this portion of the energy is transferred directly to an electrical device, for example, it is transferred to a passenger compartment or a traction battery to provide heating for the passenger compartment and heating for the traction battery via a TMS thermal management system, to improve the recycled power of energy, thereby reducing consumption of Petition 870250084015, dated 09 / 18 / 2025, page 88 / 157 3 / 47 energy for heating the passenger compartment, heating the battery and similar traction or engine heating, and also further improving comfort in the passenger compartment and enabling the battery to reach an ideal operating temperature more quickly.

[006] To solve the aforementioned technical problems and achieve the aforementioned beneficial effects, the embodiments of the present application provide a method and apparatus for controlling recyclable energy in a vehicle, a device and a vehicle. The following technical solutions are specifically disclosed.

[007] According to a first aspect, the present application provides a control method for recyclable energy in a vehicle. The method can be applied to a chassis controller. The method includes: to obtain initial power during vehicle operation, where initial power is residual power calculated by subtracting recycled power from a vehicle traction battery from the vehicle's total recyclable power; To determine if the first power is greater than or equal to a first preset value; if the first power is greater than or equal to the first preset value, generate a first control signal, where the first control signal includes the first power and a first status beacon, and the first status beacon indicates that excess power is emitted during vehicle operation; and send the first control signal to a TMS thermal management system, where the first control signal is configured to control the TMS thermal management system to power an electrical device in the vehicle using the excess power.

[008] In the method provided in this respect, the total recyclable electricity power of the vehicle is first obtained, when it is determined that the power reaches the first predefined value, the first control signal. Petition 870250084015, dated 09 / 18 / 2025, page 89 / 157 4 / 47 carrying the first power and the first status signal are then generated, and the first control signal is sent to the TMS thermal management system, to enable the TMS thermal management system to transfer the excess energy corresponding to the recyclable power to the vehicle electrical device based on the first control signal to implement the power supply to the electrical device, thereby improving the utilization of excess energy.

[009] With reference to the first aspect, in a possible implementation, the step of obtaining a first power includes: obtaining a current recyclable power of the vehicle and a recycled power of the traction battery under a specific temperature condition and a specific state-of-charge SOC parameter; and calculating a power difference between the current recyclable power and the recycled power to obtain the first power.

[010] With reference to the first aspect, in another possible implementation, the method additionally includes: generating a second control signal if the first power is less than the first preset value, where the second control signal includes the first power and a second status flag, and the second status flag indicates that no excess power is emitted during vehicle operation; and sending the second control signal to the TMS thermal management system, where the second control signal is configured to control the TMS thermal management system to power the electrical device based on an original output power.

[011] With reference to the first aspect, in yet another possible implementation, the step of sending the first control signal to a TMS thermal management system, the method additionally includes: generating a third control signal when excess energy remains after energy is supplied to the electrical device, where the third control signal includes Petition 870250084015, dated 09 / 18 / 2025, page 90 / 157 5 / 47 a second power and a third status signal, and the third status signal indicates that excess power remains; and send the third control signal to a powertrain control unit (PCU), where the third control signal is configured to control the powertrain control unit (PCU) to charge a vehicle storage battery using the excess power.

[012] With reference to the first aspect, in yet another possible implementation, it is determined that the excess energy remains after the energy is supplied to the electrical device, including: receiving indication information from the TMS thermal management system, where the indication information includes a power demand from the TMS thermal management system to power the electrical device; calculating a power difference between the first power and the power demand to obtain the second power; determining if the second power is greater than or equal to a second predefined value; and if the second power is greater than or equal to the second predefined value, determining that the excess energy remains.

[013] According to a second aspect, the present application further provides a control method for recyclable energy in vehicles. The method can be applied to a TMS thermal management system. The method includes: receive an initial control signal sent by a chassis controller, where the initial control signal includes an initial power signal and an initial status signal; To determine that excess energy is emitted during vehicle operation based on the first status indicator, where excess energy corresponds to the first power output; to find a first predefined relationship based on the first power. Petition 870250084015, dated 09 / 18 / 2025, page 91 / 157 6 / 47 for a first combined discharge temperature, and determine an operating level and power demand of a high-pressure heater corresponding to the first discharge temperature; and transfer the excess energy to an electrical device based on the operating level and power demand.

[014] Optionally, the electric device includes a passenger compartment and the traction battery.

[015] With reference to the second aspect, in a possible implementation, after the step of determining an operating level and a power demand of a high-pressure heater corresponding to the first discharge temperature, the method additionally includes: sending indication information to the chassis controller, where the indication information includes the power demand to power the electrical device.

[016] With reference to the second aspect, in another possible implementation, the method additionally includes: receiving a second control signal sent by the chassis controller, where the second control signal includes a second power and a second status signal; determining that no excess power is emitted during vehicle operation based on the second status signal; and controlling the high-pressure heater to power the electrical device based on an original level and power.

[017] In the method provided in this aspect, excess energy is transferred to the electrical device via the TMS thermal management system, for example, to provide heating for the passenger compartment and heating for the battery, to improve the recycled power of energy, thereby reducing energy consumption for heating the passenger compartment, heating the battery and the like of the traction battery or a motor, and also further improving comfort in Petition 870250084015, dated 09 / 18 / 2025, page 92 / 157 7 / 47 passenger compartment and enabling the battery to reach an ideal operating temperature more quickly.

[018] According to a third aspect, the present application further provides a control method for recyclable energy in a vehicle. The method can be applied to a powertrain control unit (PCU). The method includes: receiving a third control signal sent by a chassis controller, where the third control signal includes a second power and a third status signal; determining that excess energy remains during vehicle operation based on the third status signal, where the excess energy corresponds to the second power; fetching a second predefined ratio based on the second power to a matched target charging voltage; and charging an in-vehicle storage battery using the excess energy based on the target charging voltage.

[019] In the method provided in this aspect, the remaining energy can alternatively be transferred to the storage battery via the powertrain control unit PCU to charge the storage battery, thereby further improving the utilization of recyclable energy.

[020] According to a fourth aspect, the embodiments of the present application additionally provide a control device for recyclable energy in a vehicle. The device includes: a power generation unit, configured to obtain initial power during vehicle operation, where initial power is residual power calculated by subtracting recycled power from a vehicle traction battery from the vehicle's total recyclable power; a unit of judgment, configured to determine whether the first power is greater than or equal to a predefined first value; Petition 870250084015, dated 09 / 18 / 2025, page 93 / 157 8 / 47 a generating unit, configured to generate a first control signal when it is determined that the first power is greater than or equal to the first preset value, where the first control signal includes the first power and a first status beacon, and the first status beacon indicates that excess power is emitted during vehicle operation; and a first sending unit, configured to send the first control signal to a TMS thermal management system, where the first control signal is configured to control the TMS thermal management system to power an electrical device in the vehicle using the excess power.

[021] With reference to the fourth aspect, in one possible implementation, the harvesting unit is further configured to obtain a current recyclable power from the vehicle and a recycled power from the traction battery under a specific temperature condition and a specific state of charge parameter (SOC), and to calculate a power difference between the current recyclable power and the recycled power to obtain the first power.

[022] With reference to the fourth aspect, in another possible implementation, the generation unit is further configured to generate a second control signal when the judgment unit determines that the first power is less than the first preset value, where the second control signal includes the first power and a second status signal, and the second status signal indicates that no excess power is emitted during vehicle operation.

[023] The first transmission unit is additionally configured to send the second control signal to the TMS thermal management system, where the second control signal is configured to control the TMS thermal management system to power the electrical device based on Petition 870250084015, dated 09 / 18 / 2025, page 94 / 157 9 / 47 is an original power output.

[024] With reference to the fourth aspect, in yet another possible implementation, the generating unit is further configured to generate a third control signal when excess energy remains after energy is supplied to the electrical device, where the third control signal includes a second power and a third status signal, and the third status signal indicates that excess energy remains.

[025] The first sending unit is further configured to send the third control signal to a powertrain control unit (PCU), where the third control signal is configured to control the powertrain control unit (PCU) to charge a vehicle storage battery using the excess energy.

[026] With reference to the fourth aspect, in yet another possible implementation, the apparatus additionally includes a first receiving unit, a calculation unit and a first determination unit, where the first receiving unit is configured to receive indication information from the TMS thermal management system, where the indication information includes a power demand from the TMS thermal management system to power the electrical device; The unit of calculation is configured to calculate a power difference between the initial power and the power required to obtain the second power; The judgment unit is further configured to determine whether the second power is greater than or equal to a second preset value; and the first determination unit is configured to determine that excess energy remains when the judgment unit determines that the second power is greater than or equal to the second preset value. Petition 870250084015, dated 09 / 18 / 2025, page 95 / 157 10 / 47

[027] According to a fifth aspect, the present application further provides another control device for recyclable energy in a vehicle. The device includes: a second receiver unit, configured to receive an initial control signal sent by a chassis controller, where the initial control signal includes an initial power signal and an initial status signal; a second determination unit, configured to determine that excess energy is emitted during vehicle operation based on the first status beacon, where excess energy corresponds to the first power; and to seek a first predefined ratio based on the first power for a first combined discharge temperature, and to determine an operating level and power demand of a high-pressure heater corresponding to the first discharge temperature; and a transfer unit, configured to transfer excess energy to an electrical device based on the operating level and power demand.

[028] With reference to the fifth aspect, in one possible implementation, the device additionally includes: a second sending unit, configured to send indication information to the chassis controller after the operating level and power demand of the high-pressure heater corresponding to the first discharge temperature are determined, where the indication information includes the power demand to power the electrical device.

[029] With reference to the fifth aspect, in another possible implementation, the second receiver unit is additionally configured to receive a second control signal sent by the chassis controller, where the second control signal includes a second power and a second Petition 870250084015, dated 09 / 18 / 2025, page 96 / 157 11 / 47 status indicator; The second determination unit is further configured to ensure that no excess energy is emitted during vehicle operation based on the second status indicator; and a control unit is configured to control the high-pressure heater to power the electrical device based on an original level and power.

[030] According to a sixth aspect, the present application further provides another control device for recyclable energy in a vehicle. The device includes: a third receiver unit, configured to receive a third control signal sent by a chassis controller, where the third control signal includes a second power signal and a third status signal; a third determination unit, configured to determine that excess energy remains during vehicle operation based on the third status indicator, where excess energy corresponds to the second power; A search unit configured to search for a second predefined ratio based on the second power for a matched target charging voltage; and an electrical power control unit, configured to charge a vehicle storage battery using excess power based on the target charging voltage.

[031] According to a seventh aspect, the present application further provides an electronic device, including a memory and a processor, wherein the memory is connected to the processor; Memory stores computer instructions; and Petition 870250084015, dated 09 / 18 / 2025, page 97 / 157 12 / 47 The processor executes the computer instructions to perform the control method for recyclable energy in vehicles, from the first to the third aspect above, or any implementation thereof.

[032] According to an eighth aspect, the present application further provides a control system for recyclable energy in a vehicle, wherein the system includes a chassis controller, a thermal management system (TMS), a powertrain control unit (PCU), a high-pressure heater, an electrical device, a DC converter and a storage battery, wherein the chassis controller is connected to the thermal management system (TMS) and to the powertrain control unit (PCU), the thermal management system (TMS) is connected to the electrical device via the high-pressure heater, and the powertrain control unit (PCU) is connected to the storage battery via the DC converter; The chassis controller is configured to perform the method described in the first aspect above, or any implementation described in the first aspect. The TMS thermal management system is configured to perform the method described in the second aspect above, or any implementation described in the second aspect, and to supply power to the electrical device via the high-pressure heater; and the PCU powertrain control unit is configured to perform the method described in the third aspect above and to charge the storage battery via the DC converter.

[033] According to a ninth aspect, the present application further provides a vehicle, including the control system for recyclable energy in a vehicle in the eighth aspect above.

[034] In addition, the present application provides a means of Petition 870250084015, dated 09 / 18 / 2025, page 98 / 157 13 / 47 computer-readable storage, where the computer-readable storage medium has computer instructions stored therein, and the computer instructions are configured to enable a computer to perform the control method for recyclable energy in vehicles in the first to third aspects above or any implementation thereof.

[035] The method and control apparatus for recyclable energy in vehicles and the device provided in the present application implement closed-loop control. The total recyclable power of the vehicle's electricity is first obtained, when it is determined that the power reaches the first predefined value, the first control signal carrying the first power and the first status signal are then generated, and the first control signal is sent to the TMS thermal management system, to enable the TMS thermal management system to transfer the excess energy corresponding to the recyclable power to the vehicle's electrical device based on the first control signal to implement the power supply to the electrical device, thereby improving the utilization of excess energy.

[036] Furthermore, if excess energy still remains, the powertrain control unit (PCU) is controlled via the second control signal to transfer the remaining excess energy to the storage battery, thus achieving full utilization of the excess energy. This method utilizes recycled energy more precisely, so that not only is the utilization of recycled energy at low temperatures improved and the non-drive power consumption of the system reduced, but also the effect of improving driving range at low temperatures can be additionally achieved. Moreover, the temperature rise time Petition 870250084015, dated 09 / 18 / 2025, page 99 / 157 The 14 / 47 passenger compartment and battery space is further shortened, thereby improving passenger compartment comfort and ensuring the battery can operate within an ideal temperature range as quickly as possible, without adding any hardware costs. Brief Description of the Drawings

[037] To describe the technical solutions in specific embodiments of the present application or the state of the art more clearly, the attached drawings necessary to describe the specific embodiments or the state of the art are briefly presented below. Apparently, the attached drawings in the following description show some embodiments of the present application, and those skilled in the art can still derive other drawings from these attached drawings without creative effort.

[038] FIG. 1 is an architectural diagram of a vehicle energy recycling system according to an embodiment of the present application; FIG. 2 is a flowchart of a control method for recyclable energy in a vehicle according to an embodiment of the present application; FIG. 3 is a flowchart of another control method for recyclable energy in a vehicle according to an embodiment of the present application; FIG. 4 is a flowchart of yet another control method for recyclable energy in a vehicle according to an embodiment of the present application; FIG. 5 is a flowchart of yet another control method for recyclable energy in a vehicle according to an embodiment of the present application; FIG. 6 is a flowchart of yet another control method for recyclable energy in a vehicle according to an embodiment of the present application; FIG. 7 is a schematic diagram of recycling excess power according to an embodiment of the present application; FIG. 8 is a structural block diagram of a control device. Petition 870250084015, dated 09 / 18 / 2025, pp. 100 / 157 15 / 47 of energy according to a modality of the present application; FIG. 9 is a structural block diagram of another power control apparatus according to an embodiment of the present application; FIG. 10 is a structural block diagram of yet another power control apparatus according to an embodiment of the present application; FIG. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present application; and FIG. 12 is a schematic structural diagram of a vehicle according to an embodiment of the present application. Detailed Description

[039] The embodiments of this application are described below with reference to the attached drawings and preferred embodiments, and those skilled in the art can easily understand other advantages and effectiveness of this application through the content disclosed in this descriptive report. This application can also be implemented or applied through other specific embodiments, and various modifications or alterations can also be made to various details in this descriptive report based on different views and applications, without departing from the spirit of this application. It should be understood that the preferred embodiments are used only to describe this application and not to limit the scope of protection of this application.

[040] It should be noted that the drawings provided in the following embodiments schematically describe the basic concept of the present application, and only the components relating to the present application are shown in the drawings, which are not drawn according to the number, shape and size of the components in the actual implementation, and the actual implementation of the components, the number and proportion of the components may be arbitrarily altered, and the layout of the components may be more complex. Petition 870250084015, dated 09 / 18 / 2025, pp. 101 / 157 16 / 47

[041] Furthermore, the terms “first” and “second” are used for descriptive purposes only, but are not intended to indicate or imply relative importance or to implicitly specify a quantity of technical attributes indicated. Therefore, an attribute limited by “first” or “second” may explicitly or implicitly include one or more attributes. In the description of the present application, the term “plurality of” means at least two, for example, two, three or the like, unless specifically limited otherwise.

[042] The present application is described below in detail with reference to the attached drawings and specific embodiments.

[043] The technical solutions provided in this application are intended to maximize the use of energy that cannot be recycled. To achieve this objective, the embodiments of this application provide a control method for recyclable energy in a vehicle. This portion of the energy is used directly in electrical devices, for example, to provide heating for a passenger compartment and heating for a battery, or if surplus energy / electrical energy still remains, a 12 V storage battery can be additionally charged, to improve the recycled power of energy, thereby reducing energy consumption for heating the passenger compartment, heating the battery, charging the 12 V storage battery and the like for the traction battery or a motor, and also further improving comfort in the passenger compartment and enabling the battery to reach an ideal operating temperature more quickly.

[044] FIG. 1 is an architectural diagram of a vehicle energy recycling system according to an embodiment of the present application. The system includes a chassis controller 10, a thermal management system (TMS) 20, a high-pressure heater 30, a compartment of Petition 870250084015, dated 09 / 18 / 2025, pp. 102 / 157 17 / 47 passengers 31, a traction battery 32, a battery management system (BMS) 40, a powertrain control unit (PCU) 50, a DC converter 60 and a 12 V storage battery 70. In addition, the system may include another unit or structure, for example, an electric motor. This is not limited to this embodiment.

[045] Chassis controller 10 is connected to thermal management system TMS 20, battery management system BMS 40 and powertrain control unit PCU 50 via a signal bus, which can communicate via signal transmission, for example, controller area network (CAN) signal transmission, and can transmit a control signal.

[046] The TMS 20 thermal management system and the high-pressure heater 30 can also perform signal transmission. The high-pressure heater 30 can be connected to the passenger compartment 31 and the traction battery 32 in a way that is a circuit, other hardware, or similar.

[047] Optionally, the chassis controller can be controlled via a power recycling control unit. Additionally, the power recycling control unit can be an integrated backhaul control unit (IBCU) and is a device or unit configured to manage and control a backhaul connection in a communication network. Backhaul is a network connection to transmit a signal from an edge device or user terminal back to a core network or data center. The IBCU is responsible for managing a backhaul connection to ensure efficient data transmission and network performance; it typically includes components such as a router, a switch, a transmission device, and management software, and is configured to control and optimize bandwidth, quality, and security. Petition 870250084015, dated 09 / 18 / 2025, pp. 103 / 157 18 / 47 and similar backhaul link configurations. In this mode, the IBCU is responsible for generating and sending at least one control signal to the TMS 20 thermal management system and the PCU 50 powertrain control unit, indicating to the TMS 20 thermal management system and the PCU 50 powertrain control unit to consume excess energy, thereby improving the use of recyclable energy.

[048] The PCU 50 powertrain control unit is a core control unit of an electric drive system and is responsible for controlling the energy conversion between the battery and the electric motor and the operation of the electric motor.

[049] The DC converter 60 is configured to perform DC voltage to DC current conversion at the power output by the powertrain control unit PCU 50 to obtain electrical power suitable for charging the 12 V storage battery.

[050] In addition, in the field of vehicle control, PTC may refer to a positive temperature coefficient thermistor or other related device, for example, the high-pressure heater 30. The PTC, i.e., the positive temperature coefficient thermistor, is a special resistor whose resistance value increases as the temperature rises. In a vehicle, the PTC can be used in a high-pressure heating system. The high-pressure heater (PTC heater) is a device that heats the air inside the vehicle using the characteristics of a PTC element. The high-pressure heater 30 is generally used in an electric vehicle or a hybrid electric vehicle and is configured to provide a heating function inside the vehicle. A current flows through the PTC element, and the resistance of the PTC element rises as the current passes to generate heat. Such a heater can provide hot air quickly and is more efficient than a Petition 870250084015, dated 09 / 18 / 2025, pp. 104 / 157 19 / 47 conventional heater. The heater effectively provides comfort and heating functions in the vehicle, and can effectively control energy consumption and improve energy use.

[051] In the method provided in this embodiment, energy that cannot be recycled by a battery at low temperature can be used for another part that requires energy consumption, for example, for PTC heating or charging a 12 V storage battery, and the energy consumption demand and energy recycling status are linked in real time in terms of control for closed-loop control, thereby improving energy recycling and utilization, reducing energy draw from non-drive power consumption from a power source, improving pure electric driving range at low temperatures and reducing the overall fuel consumption of hybrid driving, and further improving passenger compartment comfort and battery performance.

[052] Specifically, when the vehicle enters neutral or braking mode, chassis controller 10 calculates recycled power. In addition, chassis controller 10 receives signals such as a recycled power limit from a battery, PTC power demand, the capacity of a 12 V storage battery and a final low-voltage DC conversion voltage, to distribute total recycled power.

[053] FIG. 2 shows a control method for recyclable energy in a vehicle according to an embodiment of the present application. The method can be applied to the previous chassis controller 10. The method includes the following steps.

[054] Step S101. Obtain a first power during vehicle operation, where the first power is a residual power calculated by Petition 870250084015, dated 09 / 18 / 2025, pp. 105 / 157 20 / 47 subtraction of recycled power from a vehicle's traction battery from the vehicle's total recyclable power.

[055] Specifically, Step S101 includes: obtaining a current recyclable power from the vehicle and a recycled power from the traction battery under a specific temperature condition and a specific state of charge parameter (SOC); and calculating a power difference between the current recyclable power and the recycled power to obtain the first power.

[056] During vehicle operation, the IBCU monitors a vehicle speed signal, a brake pedal signal, and the like in real time. When a brake pedal position and pedal depth are detected, a current total recyclable power Ptotal, i.e., a current recyclable power of the vehicle, is calculated based on deceleration, vehicle speed, vehicle weight, vehicle resistance, angle, and the like.

[057] Recycled power from the traction battery under a specific temperature condition and a specific State of Charge (SOC, a battery charge status) parameter can be measured and reported by the BMS 40 battery management system. The specific temperature condition includes a low temperature condition or an extreme cold condition, for example, -30 °C. Recycled power from the traction battery corresponds to the traction battery when the battery is at a specific percentage of SOC. Recycled power from the traction battery has a power unit of kW.

[058] Table 1 shows a mapping relationship of the traction battery's recycled power delimitation. The traction battery's recycled powers corresponding to different temperatures and different SOC percentages are reflected in Table 1 and are represented by “kw01 to kw86” in this modality. 01 to 86 are sequence numbers and do not represent specific data. Specific data can be obtained through experiments or Petition 870250084015, dated 09 / 18 / 2025, pp. 106 / 157 21 / 47 trials. This is not limited to this modality. Table 1 ^\Battery SOC % Battery Temperature\ °C 10 20 30 40 50 60 70 80 90 -30 / / / / / / / / -20 kw01 kw11 kw21 kw31 kw41 kw51 kw61 kw71 kw81 -10 kw02 kw12 kw22 kw32 kw42 kw52 kw62 kw72 kw82 0 kw03 kw13 kw23 kw33 kw43 kw53 kw63 kw73 kw83 10 kw04 kw14 kw24 kw34 kw44 kw54 kw64 kw74 kw84 25 kw05 kw15 kw25 kw35 kw45 kw55 kw65 kw75 kw85 45 kw06 kw16 kw26 kw36 kw46 kw56 kw66 kw76 kw86

[059] Based on Table 1 above and the current total recyclable power Ptotal, the first power can be calculated.

[060] Optionally, the first power is represented as P1, or P1 represents Delt_Precycle1.

[061] Step S102. Determine if the first power is greater than or equal to a first predefined value.

[062] The first preset value can be preset by the system or customized according to the actual vehicle conditions. This is not limited in this mode.

[063] Step S103. If yes, generate a first control signal, where the first control signal includes the first power and a first status beacon, and the first status beacon indicates that excess power is emitted during vehicle operation.

[064] If it is determined that the first power P1 is greater than or equal to the first predefined value, it is determined that the vehicle currently has excess energy, and the excess energy can be recycled. Furthermore, when it is determined that P1 = Delt_Precycle1 is greater than or equal to the first predefined value, the first status flag is set. The status flag is configured to represent a state of excess capacity or energy. Petition 870250084015, dated 09 / 18 / 2025, pp. 107 / 157 22 / 47 surplus at a different time and can usually be indicated by a symbol 0 or 1. The status flag can be represented by B_Recycle. For example, when P1 = Delt_Precycle1 is greater than or equal to the first predefined value, the first status flag is set to B_Recycle1 = 1. In contrast, when P1 = Delt_Precycle1 is less than the first predefined value, a second status flag is set to B_Recycle1 = 0.

[065] In this mode, the first status flag B_Recycle1 is set to 1, indicating that excess energy is emitted during vehicle operation.

[066] In addition, the first control signal, for example, a first CAN signal, which contains the first status flag B_Recycle1 = 1 and the first power P1 is generated additionally.

[067] Step S104. Send the first control signal to a TMS thermal management system, where the first control signal is configured to control the TMS thermal management system to power an electrical device in the vehicle using excess energy.

[068] The first control signal, for example, the first CAN signal, which contains the first status flag B_Recycle1 = 1 and the first power P1, is sent to the thermal management system TMS 20, to enable the thermal management system TMS 20 to supply excess energy to the electrical device, for example, transfer excess energy to the passenger compartment 31 and the traction battery 32 via the high-pressure heater 30.

[069] Optionally, in some implementations, as shown in FIG. 3, the method additionally includes the following steps.

[070] Step S105. Generate a second control signal if the first Petition 870250084015, dated 09 / 18 / 2025, pp. 108 / 157 23 / 47 power is less than the first preset value, where the second control signal includes the first power and a second status indicator.

[071] The second status flag indicates that no excess energy is generated during vehicle operation. Optionally, the value of the second status flag B_Recycle1 is set to 0.

[072] Step S106. Send the second control signal to the TMS thermal management system, where the second control signal is configured to control the TMS thermal management system to power the electrical device based on the original output power.

[073] Chassis controller 10 sends the second control signal, for example, a second CAN signal, which contains the second status flag B_Recycle1 = 0 and the first power P1, to the thermal management system TMS 20.

[074] In the method provided in this aspect, the total recyclable power of the vehicle's electricity is first obtained, when it is determined that the power reaches the first predefined value, the first control signal carrying the first power and the first status signal are then generated, and the first control signal is sent to the TMS thermal management system, to enable the TMS thermal management system to transfer the excess energy corresponding to the recyclable power to the electrical device in the vehicle based on the first control signal to implement the power supply to the electrical device, thereby improving the utilization of excess energy.

[075] Optionally, in some implementations, after Step S106, as shown in FIG. 4, the method additionally includes the following steps.

[076] Step S107. Generate a third control signal when power Petition 870250084015, dated 09 / 18 / 2025, pp. 109 / 157 24 / 47 surplus remains after power is supplied to the electrical device, where the third control signal includes a second power and a third status indicator.

[077] The third status signal indicates that excess energy remains. This step is performed when it is additionally detected that excess energy remains after the energy corresponding to the first power P1 is transferred to the thermal management system TMS 20 for consumption by the electrical device, and the third control signal is generated. The third control signal includes the second power P2 and the third status signal B_Recycle2, and the value of the third status signal B_Recycle2 is 1.

[078] Step S108. Send the third control signal to a powertrain control unit (PCU), where the third control signal is configured to control the powertrain control unit (PCU) to charge a vehicle storage battery using excess energy.

[079] For example, the powertrain control unit PCU transfers excess energy to the 12 V storage battery via the DC converter based on the third control signal to charge the 12 V storage battery.

[080] Additionally, in Step S107 above, it is determined whether excess energy remains after the TMS thermal management system supplies power to the electrical device, including: Receive indication information from the TMS thermal management system, where the indication information includes a power demand from the TMS thermal management system to power the electrical device; calculate a power difference between the first power and the demand power to obtain the second power; determine if the second power P2 is greater than or equal to a second predefined value. Petition 870250084015, dated 09 / 18 / 2025, pp. 110 / 157 25 / 47, the second preset value, may or may not be the same as the first preset value in the previous S102 Step. This is not limited in this mode.

[081] If so, it is determined that the excess energy remains. Otherwise, it is determined that there is no excess energy remaining.

[082] In the method provided in this embodiment, when it is detected that excess energy remains, the excess energy can alternatively be transferred to the storage battery via the powertrain control unit PCU to charge the storage battery, thereby further improving the utilization of recyclable energy.

[083] In another embodiment, the present application further provides a control method for recyclable energy in a vehicle. The method is applied to a TMS 20 thermal management system. As shown in FIG. 5, the method includes the following steps.

[084] Stage S201. Receive a first control signal sent by a chassis controller, where the first control signal includes a first power and a first status signal.

[085] This stage corresponds to Stage S104 in the previous mode. The TMS 20 thermal management system receives the first control signal via a CAN bus.

[086] Step S202. Determine that excess energy is emitted during vehicle operation based on the first status indicator, where excess energy corresponds to the first power.

[087] Specifically, the TMS 20 thermal management system determines, based on the first status flag B_Recycle1 = 1, that excess energy remains during vehicle operation. The TMS 20 thermal management system and the chassis controller 10 agree in advance that different field contents of the status flag Petition 870250084015, dated 09 / 18 / 2025, pp. 111 / 157 26 / 47 B_Recycle represent different meanings. For example, the field “1” represents that there is still surplus energy remaining. The field “0” represents that there is no surplus recyclable energy remaining.

[088] Furthermore, it is also obtained through the first control signal, for example, the first CAN signal, that a power corresponding to the current excess energy is a first power P1.

[089] Step S203. Search for a first predefined relationship based on the first power for a first combined outlet temperature and determine an operating level and power demand of a high-pressure heater corresponding to the first discharge temperature.

[090] The first predefined relationship is a mapping relationship between a discharge temperature and a recycled power P. The recycled power P can be represented as Delt_Precycle1”. For example, the first power P1 = Delt_Precycle1. Specifically, Table 2 is a schematic table of the first predefined relationship. Table 2 Delt_Precycle1 (Unit: kW) 0 1 2 3 4 5 6 Target discharge temperature of PTC Δ (unit: °C) T1 T1+10 T1+20 T1+20 T1+25 T1+25 T1+30 Note: The target discharge temperature in the table is a delta value, and this value is added to the original base.

[091] In Table 2, the original base discharge temperature is T1, and this value is a value with a +”, for example, 10, 20, 35 or 30.

[092] The PTC target discharge temperature is an expected water temperature value set on the high-pressure heater 30. As the high-pressure heater 30 is configured to provide a heating function inside the vehicle, the target discharge temperature is an expected water heating temperature. This temperature can be set and adjusted according to actual requirements and user preference.

[093] Additionally, the target discharge temperature depends on Petition 870250084015, dated 09 / 18 / 2025, pp. 112 / 157 27 / 47 specific vehicle model, heating system design, and required heating effect. Different vehicles and application scenarios, for example, a vehicle heater system and a battery thermal management system, may have different target water temperature requirements. In the vehicle's high-pressure heater 30, the target discharge temperature is achieved by controlling a current and a heating time. The water in the heater can reach a defined target temperature by controlling the magnitude of the current and the duration of the heating time. In this way, it is possible to ensure that the heating effect of the air inside the vehicle or in another application scenario meets the expected demand.

[094] In this mode, the high-pressure heater 30 first seeks the first predefined relationship in Table 1 through the first power P1 for a target discharge temperature of PTC Δ corresponding to P1, then each target discharge temperature Δ is, in turn, associated with the operating level and the power demand, and the operating level of power supply to the electrical device and the power demand of the electrical device can be determined through the target discharge temperature Δ.

[095] In this version, the electric device includes a passenger compartment 31 and the traction battery 32.

[096] Step S204. Transfer excess energy to an electrical device based on operating level and power demand.

[097] The high-pressure heater 30 transfers energy to the passenger compartment 31 and to the traction battery 32 based on the operating level and the power demand corresponding to the first power P1, for example, it provides heating for the passenger compartment 31 and provides heating for the traction battery 32.

[098] In addition, after the high-pressure heater 30 determines the level Petition 870250084015, dated 09 / 18 / 2025, pp. 113 / 157 28 / 47 operational and the power demand of the high-pressure heater corresponding to the first discharge temperature, the method additionally includes: sending indication information to chassis controller 10, where the indication information includes the power demand to power the electrical device.

[099] Optionally, the indication information can be transmitted to chassis controller 10 via a CAN signal, to enable chassis controller 10 to know the required amount of energy and the amount of recyclable energy to be consumed by the TMS 20 thermal management system.

[100] In addition, the previous method further includes: receiving, by the TMS 20 thermal management system, a second control signal sent by the chassis controller 10, where the second control signal includes a second power and a second status signal. The step corresponds to Step S106 in the previous embodiment.

[101] The TMS 20 thermal management system determines that no excess energy is emitted during vehicle operation based on the second status indicator; and controls the high-pressure heater to power the electrical device based on an original level and power.

[102] The second status flag B_Recycle1 = 0 represents that there is currently no recyclable energy remaining.

[103] In the method provided in this embodiment, excess energy is transferred to the electrical device via the TMS thermal management system, for example, to provide heating for the passenger compartment and heating for the battery, to improve the recycled power of energy, thereby reducing energy consumption for heating the passenger compartment, heating the battery and the like. Petition 870250084015, dated 09 / 18 / 2025, pp. 114 / 157 29 / 47 traction or a motor, and also further improving comfort in the passenger compartment and enabling the battery to reach an ideal operating temperature more quickly.

[104] In addition, in another embodiment, a control method for recyclable energy in a vehicle is additionally provided, applied to a powertrain control unit (PCU). As shown in FIG. 6, the method additionally includes the following steps.

[105] Step S301. Receive a third control signal sent by a chassis controller, where the third control signal includes a second power and a third status signal.

[106] This step corresponds to step S108 in the previous embodiment. For a specific process, refer to the previous description of Step S301. The details are not described again in the present invention in this embodiment. The third control signal includes the second power P2 and the third status signal B_Recycle2.

[107] Step S302. Determine that excess energy remains during vehicle operation based on the third status indicator, where excess energy corresponds to the second power.

[108] Specifically, if the third status flag B_Recycle2 = 1, it is determined that excess energy remains during vehicle operation. The excess energy corresponds to the second power P2, P2 = P1 power Pdemanded, and the power Pdemanded is the energy / power determined by the TMS 20 thermal management system to be supplied to the electrical device in the previous Step S204.

[109] Optionally, the second power P2 is represented by Delt_Precycle1_W, whose unit is W.

[110] Step S303. Search for a second predefined relationship based on Petition 870250084015, dated 09 / 18 / 2025, pp. 115 / 157 30 / 47 second power for a combined target charging voltage.

[111] The second predefined relationship is a mapping relationship between Delt_Precycle1 and a target charging voltage V of the storage battery. The mapping relationship can be predefined and stored in the powertrain control unit PCU, as shown in Table 3. Table 3 Delt_Precycle1 (W) 0 100 200 300 400 ... Target charging voltage (V) of the 12 V storage battery V1 V2 V3 V4 V5 ...

[112] The powertrain control unit PCU determines the target charging voltage of the storage battery from the second predefined relationship in Table 3 based on the second power P2 = Delt_Precycle1. The storage battery is usually a 12 V storage battery. For example, in one example, the second power P2 = 100 W, and it is found based on P2 = 100 W that the combined target charging voltage is V2.

[113] Step S304. Charge a vehicle storage battery using excess energy based on the target charging voltage.

[114] The powertrain control unit (PCU) charges the vehicle storage battery based on the target charging voltage determined in Step S303. For example, the target charging voltage V2 is used to transfer excess electrical power to the 12 V storage battery via a DC converter to charge the 12 V storage battery.

[115] In the method provided in this embodiment, the remaining energy can be transferred to the storage battery via the powertrain control unit PCU to charge the storage battery, thereby further improving the utilization of recyclable energy.

[116] In the modalities of the present request, the consumer demand of Petition 870250084015, dated 09 / 18 / 2025, pp. 116 / 157 31 / 47 Non-drive power and energy recycling availability are linked. The non-drive power consumption target is adjusted in real time, so that when another system, for example, the battery, reaches a recycling limit and recycled power is restricted, the remaining recycled energy can be used to the maximum extent possible. The logic diagram is shown in FIG. 7.

[117] Furthermore, if excess energy still remains, the target charging voltage of the 12 V storage battery will be additionally linked to the availability of energy recycling. The target voltage of the 12 V storage battery is adjusted in real time to improve the charging rate, so that electricity can be stored as quickly as possible for use by the vehicle's low-voltage load. The logic diagram is shown in FIG. 7.

[118] Based on the two previous points, a specific implementation process is as follows:

[119] Before the solution is implemented, the recycled power of the traction battery needs to be confirmed in the system, as shown in Table 1 above. A plug-in hybrid electric model is used as an example. An environmental delimitation is below -5 °C. Passenger compartment heating and battery heating are both active. The operating conditions are urban conditions. In urban conditions, braking is frequent, and recycled braking energy can vary from 20 kW to 40 kW. The heavier the vehicle, the more energy is recyclable. At low temperatures, battery charging power is low and more energy cannot be recycled. The present application proposes a control method for recyclable power to reuse this portion of wasted energy. Petition 870250084015, dated 09 / 18 / 2025, pp. 117 / 157 32 / 47

[120] Specifically, the vehicle is switched on and normal operation is initiated. Controllers such as the IBCU chassis controller, the PCU powertrain control unit, the BMS battery management system and the TMS thermal management system enter an operational state. The IBCU monitors a vehicle speed signal, a brake pedal signal and the like in real time. When a brake pedal position and pedal depth are detected, a current total recyclable power Ptotal is calculated based on deceleration, vehicle speed, vehicle weight, vehicle resistance, angle and the like.

[121] In addition, the IBCU 10 chassis controller synchronously searches Table 1 for the recycled power P_batt_recycle of the traction battery and calculates a difference value between Ptotal and the recycled power P_batt_recycle of the battery to obtain the first power P1 = Delt_Precycle1, and Delt_Precycle1 is determined. If Delt_Precycle1 > the preset value 1 (i.e., the first preset value), the IBCU sends the first control signal to the CAN bus. The first control signal can be transmitted to the TMS 20 thermal management system via the CAN bus. The first control signal includes the first power P1 and the first status flag B_Recycle1 = 1. Specifically, the preceding process corresponds to Steps S101 to S104 above.

[122] As shown in FIG. 7, if Delt_Precycle1 < predefined value 1, the IBCU sends the second control signal. The second control signal carries the second status flag B_Recycle1 = 0 and the first power P1 to the CAN bus.

[123] Additionally, the TMS 20 thermal management system receives the first control signal via the CAN bus, looks up the target PTC discharge temperature value Δ in Table 2 based on the first Petition 870250084015, dated 09 / 18 / 2025, pp. 118 / 157 33 / 47 status flag B_Recycle1 = 1 in the first control signal and adds an original PTC target discharge temperature to the Δ value obtained by consulting the table to output a final PTC target discharge temperature. The TMS calculates a final PTC level and a corresponding power P based on the target discharge temperature, for example, it calculates a recycled power P1. Furthermore, the method additionally includes: sending, via the TMS 20 thermal management system, the PTC target power to the chassis controller.

[124] The TMS 20 thermal management system performs the functions of heating the passenger compartment and heating the battery. For example, recycled power P1 is transferred to the passenger compartment and to the battery via the PTC to provide heating for the passenger compartment and heating for the battery. The TMS 20 thermal management system additionally transfers recycled power P2 to the traction battery to charge the traction battery.

[125] In addition, the TMS 20 thermal management system returns indication information to the chassis controller 10 via the control signal, for example, a P_ptc_targt signal.

[126] Optionally, if the TMS 20 thermal management system receives the second status flag B_Recycle1 = 0 from the CAN bus, this means that there is currently no more excess recyclable energy remaining and, in this case, a target PTC water level is maintained at an original TMS emission value.

[127] Chassis controller 10 receives indication information from the thermal management system TMS 20, including the battery's recycled power P_batt_recycle and the PTC target power. A difference value between the battery's recycled power P_batt_recycle and the target power Petition 870250084015, dated 09 / 18 / 2025, pp. 119 / 157 34 / 47 PTC's P_ptc_targt is calculated to obtain Delt_Precycle2, and the second power P2 is determined. If Delt_Precycle2 > a predefined value of 2 (i.e., the second predefined value), it is determined that the power remains. Chassis controller 10 generates and sends the third control signal to the CAN bus. The CAN bus is a communication link between the chassis controller and the powertrain control unit PCU 50. The third control signal includes the second power P2 and the third status flag B_Recycle2 = 1.

[128] If the second power P2 = Delt_Precycle2 < predefined value 2, a fourth control signal is sent to the powertrain control unit PCU 50. The fourth control signal includes the second status flag B_Recycle2 = 0. The powertrain control unit PCU 50 determines that if the value of the second status flag B_Recycle2 is 1, this means that energy remains and is usable. If the value is 0, no remaining energy can be used.

[129] When B_Recycle2 = 1, the powertrain control unit PCU 50 raises the voltage of the 12 V storage battery. After the voltage rise, the remaining part of the energy is transferred to the 12 V storage battery to charge the 12 V battery.

[130] Specifically, the PCU 50 powertrain control unit looks up the target charging voltage of the 12 V storage battery in Table 3 above and controls a DC output voltage based on the target voltage obtained by looking up the table. If the target voltage obtained by looking up the table is greater than the maximum operating voltage of the 12 V storage battery, the maximum operating voltage of the 12 V storage battery will be used for execution. In this example, the PCU 50 powertrain control unit transfers the remaining power, for example, Petition 870250084015, dated 09 / 18 / 2025, pp. 120 / 157 35 / 47 a recycled power P3 to the DC converter. After voltage conversion by the DC converter, the electrical energy of the recycled power P3 is transferred to the 12 V storage battery to charge the 12 V storage battery. The 12 V storage battery is configured to implement the power supply for a low-voltage electrical device in the vehicle. This method can fully utilize recycled power, thus significantly improving the charging rate of the 12 V storage battery. If the powertrain control unit PCU 50 receives B_Recycle2 = 0 from the CAN bus, the target charging voltage of the 12 V storage battery will be maintained at a specific value.

[131] The method provided in this embodiment uses recycled energy more precisely, so that not only can the use of recycled energy at low temperatures be improved and the non-drive power consumption of the system reduced, but also the effect of improving driving range at low temperatures can be additionally achieved. Furthermore, the temperature rise time of the passenger compartment and battery can be shortened, thereby improving comfort in the passenger compartment and ensuring that the battery can operate within an ideal temperature range as quickly as possible, without adding any hardware cost.

[132] Additionally, in the previous embodiment, in which the TMS 20 thermal management system implements the power supply to an electrical device, it is defined that, under conditions in which the ambient temperature is -20 °C, the average vehicle speed is 40 km / h, the deceleration is -1.5 m / s2 and there is no angle, the recyclable power is 27 kW. When SOC = 30%, the recyclable power of the battery is 5 kW. The power Petition 870250084015, dated 09 / 18 / 2025, pp. 121 / 157 36 / 47 demanded by the PTC, calculated based on a current strategy, is 4 kW, and the corresponding target PTC discharge temperature is 40 °C. In this case, the remaining recycled power, Delt_Precycle1 = 18 kW, cannot be used. In the method provided in the embodiments of this application, based on Delt_Precycle1 = 18 kW, the target PTC discharge temperature is increased to 60 °C. In this case, the corresponding PTC power is 9 kW. This equates to an additional 5 kW recycled to the recycled power, and the energy recycling efficiency increases from 33% to 52%.

[133] Furthermore, after the target PTC water temperature is increased from the original 40 °C to 60 °C, the temperature rise time of the passenger compartment and battery is reduced by approximately 33%, so that the passenger compartment is more comfortable and the battery can reach the target operating temperature more quickly.

[134] In the previous embodiment, in which the power supply from the 12 V storage battery is implemented through the powertrain control unit PCU 50, it can be calculated that the second power P2 = Delt_Precycle2 = 13 kW. The power is much greater than the power demand of the 12 V storage battery, and the charging voltage is increased from 12 V to 15 V, so that the charging current can be doubled.

[135] This embodiment further provides a control device for recyclable energy in a vehicle. The device is configured to implement the previous embodiments and preferred embodiments, and the content described is not repeated. As used in the present invention, the term module refers to a combination of software and / or hardware configured to implement a predetermined function. Although the device described in the following embodiments is preferably implemented in software, implementation via hardware or a combination of software and hardware is also possible. Petition 870250084015, dated 09 / 18 / 2025, pp. 122 / 157 37 / 47 is also possible and contemplated.

[136] This embodiment provides a control apparatus for recyclable energy in a vehicle, configured to implement the previous control method for recyclable energy in a vehicle shown in FIGS. 2 to FIGS. 4. As shown in FIG. 8, the apparatus includes a harvesting unit 401, a trial unit 402, a generation unit 403 and a first sending unit 404. In addition, the apparatus may additionally include other more or fewer units or modules.

[137] The 401 harvesting unit is configured to obtain a first power during vehicle operation, where the first power is a residual power calculated by subtracting a recycled power from a vehicle traction battery from a total recyclable power of the vehicle.

[138] The 402 judgment unit is set up to determine whether the first power is greater than or equal to a predefined first value.

[139] The 403 generation unit is configured to generate a first control signal when it is determined that the first power is greater than or equal to the first preset value, where the first control signal includes the first power and a first status signal, and the first status signal indicates that excess power is emitted during vehicle operation.

[140] The first 404 sending unit is configured to send the first control signal to a TMS thermal management system, where the first control signal is configured to control the TMS thermal management system to power an electrical device in the vehicle using excess energy.

[141] Optionally, in some implementations, the 401 harvesting unit is additionally configured to obtain recyclable power. Petition 870250084015, dated 09 / 18 / 2025, pp. 123 / 157 38 / 47 current vehicle power and recycled power from the traction battery under a specific temperature condition and a specific state-of-charge parameter (SOC), and calculate a power difference between the current recyclable power and the recycled power to obtain the first power.

[142] Optionally, in some other possible implementations, the 403 generation unit is additionally configured to generate a second control signal when the judgment unit determines that the first power is less than the first preset value, where the second control signal includes the first power and a second status signal, and the second status signal indicates that no excess power is emitted during vehicle operation.

[143] The first 404 sending unit is additionally configured to send the second control signal to the TMS thermal management system, where the second control signal is configured to control the TMS thermal management system to power the electrical device based on an original output power.

[144] Optionally, in some other possible implementations, the 403 generating unit is further configured to generate a third control signal when excess power remains after power is supplied to the electrical device, where the third control signal includes a second power and a third status signal, and the third status signal indicates that excess power remains.

[145] The first 404 sending unit is further configured to send the third control signal to a powertrain control unit (PCU), where the third control signal is configured to control the powertrain control unit (PCU) to charge a vehicle storage battery using the excess energy. Petition 870250084015, dated 09 / 18 / 2025, pp. 124 / 157 39 / 47

[146] Optionally, in some other possible implementations, the previous apparatus additionally includes a first receiving unit 405, a calculation unit 406, a judgment unit 407 and a first determination unit 408.

[147] The first receiver unit 405 is configured to receive indication information from the TMS thermal management system, where the indication information includes a power demand from the TMS thermal management system to power the electrical device.

[148] Calculation unit 406 is configured to calculate a power difference between the first power and the power demanded to obtain the second power.

[149] The 407 judgment unit is further configured to determine whether the second power is greater than or equal to a second preset value.

[150] The first determination unit 408 is set to determine that excess energy remains when the first judgment unit determines that the second power is greater than or equal to the second preset value.

[151] Optionally, the previous device may be an IBCU or a chassis controller including the device.

[152] In addition, this embodiment further provides a control apparatus for recyclable energy in a vehicle, configured to implement the previous method shown in FIG. 5. As shown in FIG. 9, the apparatus includes a second receiving unit 501, a second determination unit 502, a transmission unit 503, a second sending unit 504 and a control unit 505. In addition, the apparatus may include more or fewer other units or modules. Petition 870250084015, dated 09 / 18 / 2025, pp. 125 / 157 40 / 47

[153] Additionally, the second receiver unit 501 is configured to receive a first control signal sent by a chassis controller, where the first control signal includes a first power and a first status signal.

[154] The second determination unit 502 is configured to determine that excess energy is emitted during vehicle operation based on the first status beacon, where excess energy corresponds to the first power; and to seek a first predefined ratio based on the first power for a first combined discharge temperature, and to determine an operating level and power demand of a high-pressure heater corresponding to the first discharge temperature.

[155] The 503 transfer unit is configured to transfer excess energy to an electrical device based on the operating level and power demand.

[156] The second 504 transmission unit is configured to send indication information to the chassis controller after the operating level and power demand of the high-pressure heater corresponding to the first discharge temperature are determined, where the indication information includes the power demand to power the electrical device.

[157] Optionally, in a possible implementation of this mode, the second receiver unit 501 is additionally configured to receive a second control signal sent by the chassis controller, where the second control signal includes a second power and a second status signal.

[158] The second determination unit 502 is further configured to ensure that no excess energy is emitted. Petition 870250084015, dated 09 / 18 / 2025, pp. 126 / 157 41 / 47 during vehicle operation based on the second status indicator.

[159] Control unit 505 is configured to control the high-pressure heater to power the electrical device based on an original level and power.

[160] In addition, this embodiment provides further another power control apparatus, configured to implement the previous method shown in FIG. 6. As shown in FIG. 10, the apparatus includes a third receiving unit 601, a third determination unit 602, a search unit 603 and an electrical power control unit 604. In addition, the apparatus may include further more or fewer units or modules. This is not limited in this embodiment.

[161] The third receiver unit 601 is configured to receive a third control signal sent by a chassis controller, where the third control signal includes a second power and a third status signal.

[162] The third determination unit 602 is configured to determine that excess energy remains during vehicle operation based on the third status indicator, where excess energy corresponds to the second power.

[163] The 603 search unit is configured to search for a second predefined ratio based on the second power for a matched target charging voltage.

[164] The 604 electrical power control unit is configured to charge a vehicle storage battery using excess power based on the target charging voltage.

[165] It should be noted that the power control device in this embodiment is presented in the form of a functional unit. The unit refers to an ASIC circuit, a processor and a memory executing a or Petition 870250084015, dated 09 / 18 / 2025, pp. 127 / 157 42 / 47 plus software or fixed programs, and / or other devices that can provide the above functions.

[166] Additional functional descriptions of each of the above modules and units are identical to the corresponding embodiments described above, and the details will not be described in the present invention.

[167] The embodiments of the present application further provide an electronic device, including the aforementioned power control apparatus shown in FIGS. 8 to 10.

[168] FIG. 11 is a schematic structural diagram of an electronic device according to an optional embodiment of the present application. As shown in FIG. 11, the electronic device includes one or more processors 100, a memory 200, and interfaces for connecting components, including high-speed and low-speed interfaces. The components are communicatively connected to each other by different buses and can be installed on a common motherboard or installed in other configurations as needed. The processor executes instructions within the electronic device, including instructions stored in memory to display graphical information to a GUI on an external input / output device (e.g., a display device coupled to the interfaces).

[169] In some optional embodiments, multiple processors and / or multiple buses may be employed with multiple memories when necessary. Similarly, multiple electronic devices may be connected, each providing part of the necessary operations (for example, as a server array, a group of blade servers or a multiprocessor system). A processor 100 is used as an example in FIG. 11.

[170] Processor 100 can be a central processing unit. Processor 100 may additionally include a chip for Petition 870250084015, dated 09 / 18 / 2025, pp. 128 / 157 43 / 47 hardware. The aforementioned hardware chip may be an application-specific integrated circuit, a programmable logic device, or a combination thereof. The programmable logic device may be a complex programmable logic device, a field-programmable gate array, a generic array logic, or any combination thereof.

[171] Memory 200 stores executable instructions by at least one processor 100, enabling at least one processor 100 to perform the methods shown in the modes mentioned above.

[172] Memory 200 may include a program storage area and a data storage area. The program storage area may store an operating system and an application required for at least one function. The data storage area may store data created in accordance with the use of an electronic device and the like. Furthermore, memory 200 may include high-speed random access memory (RAM) and may additionally include non-transient memory, for example, at least one magnetic disk storage device, flash storage device, or other non-transient solid-state storage device. In some optional embodiments, memory 200 optionally includes memories located remotely from the processor 100. These remote memories may be connected to the electronic device via a network.An example of the aforementioned network includes, but is not limited to, the internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[173] Memory 200 may include volatile memory, for example, random access memory; memory may additionally include non-volatile memory, for example, flash memory, a disk drive. Petition 870250084015, dated 09 / 18 / 2025, pp. 129 / 157 44 / 47 hard drive or a solid-state drive; and memory 200 may additionally include a combination of the memory types mentioned above.

[174] The electronic device additionally includes an input / output device. The processor 100, the memory 200, the input device and the output device can be connected via a bus or other means.

[175] The input device may receive numeric or character input information and generate key signal inputs related to user settings and functional control of the electronic device and is, for example, a touch screen, a numeric keypad, a mouse, a trackpad, a touchpad, a pointer, one or more mouse buttons, a trackball, or a joystick. The output device may include a display device, an auxiliary lighting device (e.g., an LED), a tactile feedback device (e.g., a vibration motor), and the like. The aforementioned display device includes, but is not limited to, a liquid crystal display, a light-emitting diode, a display, and a plasma display. In some optional implementations, the display device may be a touch screen.

[176] The electronic device additionally includes a 300 communication interface, configured to enable communication between the electronic device and another device or communication network.

[177] Optionally, the foregoing electronic device may be a chassis controller, for example, an IBCU, or any of a thermal management system 20, a high-pressure heater 30, a battery management system 40 and a powertrain control unit PCU 50. In addition, the electronic device may alternatively be another unit or device. This is not limited in this embodiment. Petition 870250084015, dated 09 / 18 / 2025, pp. 130 / 157 45 / 47

[178] In addition, this embodiment provides an additional control system for recyclable energy in vehicles. The system structure may be, for example, the previous structure shown in FIG. 1. The system includes a chassis controller, a thermal management system (TMS), a powertrain control unit (PCU), a high-pressure heater, an electrical device, a DC converter, a storage battery, among other units or modules.

[179] The chassis controller is connected to the TMS thermal management system and the PCU powertrain control unit, the TMS thermal management system is connected to the electrical device via the high-pressure heater, and the PCU powertrain control unit is connected to the storage battery via the DC converter.

[180] Additionally, the chassis controller is configured to perform the control method for recyclable energy in the vehicle in the previous embodiments. The TMS thermal management system is configured to perform the control method for recyclable energy in the vehicle in the previous embodiments and supply energy to the electrical device through the high-pressure heater. The PCU powertrain control unit is configured to perform the energy control method in the previous embodiments and charge the storage battery through the DC converter.

[181] The system provided in the present application implements closed-loop control. The total recyclable power of the vehicle's electricity is first obtained, when it is determined that the power reaches the first predefined value, the first control signal carrying the first power and the first status beacon are then generated, and the first control signal is sent to the TMS thermal management system, to enable the TMS thermal management system to transfer the excess energy. Petition 870250084015, dated 09 / 18 / 2025, pp. 131 / 157 46 / 47 corresponding to the recyclable power for the electrical device in the vehicle based on the first control signal to implement the power supply to the electrical device, thereby improving the use of surplus energy.

[182] Furthermore, if excess energy still remains, the powertrain control unit (PCU) is controlled via the second control signal to transfer the remaining excess energy to the storage battery, thereby achieving full utilization of the excess energy. This method utilizes recycled energy more precisely, so that not only is the utilization of recycled energy at low temperatures improved and the non-drive power consumption of the system reduced, but also the effect of improving driving range at low temperatures can be further achieved. Moreover, the temperature rise time of the passenger compartment and battery is further shortened, thereby improving passenger compartment comfort and ensuring that the battery can operate within an ideal temperature range as quickly as possible, without adding any hardware costs.

[183] ​​In addition, this embodiment provides a vehicle. As shown in FIG. 12, the vehicle includes the control system for recyclable energy in a vehicle shown in FIG. 1.

[184] Embodiments of the present application further provide a computer storage medium. The methods according to the embodiments of the present application may be implemented in hardware or firmware, or may be implemented as computer code recorded on a storage medium, or implemented as computer code that can be downloaded via a network, originally stored on a remote storage medium or non-remote storage medium. Petition 870250084015, dated 09 / 18 / 2025, pp. 132 / 157 47 / 47 machine-readable transient and subsequently stored on a local storage medium. Thus, the methods described in the present invention can be processed by such software stored on a storage medium using general-purpose computers, dedicated processors, or programmable / dedicated hardware.

[185] The storage medium may be a magnetic disk, an optical disk, a read-only memory, a random access memory, a flash memory, a hard disk drive, or a solid-state drive. Additionally, the storage medium may include combinations of the above-mentioned memory types. It should be understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code. When accessed and executed by computers, processors, or hardware, the software or computer code implements the methods illustrated in the embodiments above.

[186] The above embodiments are merely preferred embodiments provided to fully illustrate the present application, and the scope of protection of the present application is not limited to them. Any equivalent substitution or modification made by those skilled in the art based on the present application will be within the scope of protection of the present application. Petition 870250084015, dated 09 / 18 / 2025, pp. 133 / 157

Claims

1 / 5 CLAIMS 1. A control method for recyclable energy in a vehicle, characterized in that the method is applied to a chassis controller, comprising: obtaining a first power during vehicle operation, wherein the first power is a residual power calculated by subtracting a recycled power from a vehicle traction battery from a total recyclable power of the vehicle; determining whether the first power is greater than or equal to a predefined first value; if the first power is greater than or equal to the predefined first value, generating a first control signal, wherein the first control signal comprises the first power and a first status signal, and the first status signal indicates that excess energy is emitted during vehicle operation;and send the first control signal to a TMS thermal management system, where the first control signal is configured to control the TMS thermal management system to power an electrical device in the vehicle using the excess energy.

2. A method according to claim 1, characterized in that the step of obtaining a first power comprises: obtaining a current recyclable power from the vehicle and a recycled power from the traction battery under a specific temperature condition and a specific state of charge parameter (SOC); and calculating a power difference between the current recyclable power and the recycled power to obtain the first power.

3. Method, according to claim 1, characterized by the fact that Petition 870250084015, dated 09 / 18 / 2025, pp. 153 / 157 2 / 5, further comprises: generating a second control signal if the first power is less than the first preset value, wherein the second control signal comprises the first power and a second status signal, and the second status signal indicates that no excess power is emitted during vehicle operation; and sending the second control signal to the TMS thermal management system, wherein the second control signal is configured to control the TMS thermal management system to power the electrical device based on an original output power.

4. A method according to any one of claims 1 to 3, characterized in that after the step of sending the first control signal to a TMS thermal management system, the method further comprises: generating a third control signal when excess energy remains after power is supplied to the electrical device, wherein the third control signal comprises a second power and a third status signal, and the third status signal indicates that excess energy remains; and sending the third control signal to a powertrain control unit (PCU), wherein the third control signal is configured to control the powertrain control unit (PCU) to charge a vehicle storage battery using the excess energy.

5. Method according to claim 4, characterized in that it is determined that excess energy remains after energy is supplied to the electrical device, comprising: receiving indication information from the TMS thermal management system, wherein the indication information comprises a power demanded from the TMS thermal management system to power the electrical device; calculating a power difference between the first power and the power demanded to obtain the second power; determining whether the second power is greater than or equal to a second predefined value; and if the second power is greater than or equal to the second predefined value, determining that excess energy remains.

6. Control method for recyclable energy in a vehicle characterized in that the method is applied to a TMS thermal management system, the method comprising: receiving a first control signal sent by a chassis controller, wherein the first control signal comprises a first power and a first status beacon; determining that excess energy is emitted during vehicle operation based on the first status beacon, wherein the excess energy corresponds to the first power; seeking a first predefined ratio based on the first power for a first combined discharge temperature, and determining an operating level and power demand of a high-pressure heater corresponding to the first discharge temperature; and transferring the excess energy to an electrical device based on the operating level and power demand.

7. Method according to claim 6, characterized in that after the step of determining an operating level and a power demand of a high-pressure heater corresponding to the first discharge temperature, the method further comprises: Petition 870250084015, dated 09 / 18 / 2025, page 155 / 157 4 / 5 sending indication information to the chassis controller, wherein the indication information comprises the power demand to power the electrical device.

8. A method according to claim 6 or 7, characterized in that it further comprises: receiving a second control signal sent by the chassis controller, wherein the second control signal comprises a second power and a second status signal; determining that no excess power is emitted during vehicle operation based on the second status signal; and controlling the high-pressure heater to power the electrical device based on the original level and power.

9. A control method for recyclable energy in a vehicle, characterized in that the method is applied to a powertrain control unit (PCU), the method comprising: receiving a third control signal sent by a chassis controller, wherein the third control signal comprises a second power and a third status signal; determining that the excess energy remains during vehicle operation based on the third status signal, wherein the excess energy corresponds to the second power; seeking a second predefined ratio based on the second power to a matched target charging voltage; and charging a vehicle storage battery using the excess energy based on the target charging voltage.

10. Electronic device characterized in that it comprises a memory and a processor, wherein the memory is connected to the processor; the memory stores computer instructions; and the processor executes the computer instructions to perform the control method for recyclable energy in a vehicle defined in any one of claims 1 to 5, or any one of claims 6 to 8, or in claim 9.

11. Control system for recyclable energy in a vehicle characterized in that the system comprises a chassis controller, a thermal management system (TMS), a powertrain control unit (PCU), a high-pressure heater, an electrical device, a DC converter, and a storage battery, wherein the chassis controller is connected to the thermal management system (TMS) and the powertrain control unit (PCU), the thermal management system (TMS) is connected to the electrical device via the high-pressure heater, and the powertrain control unit (PCU) is connected to the storage battery via the DC converter; the chassis controller is configured to perform the method defined in any one of claims 1 to 5; the thermal management system (TMS) is configured to perform the method defined in any one of claims 6 to 8 and supply energy to the electrical device via the high-pressure heater;and the powertrain control unit (PCU) is configured to perform the method defined in claim 9 and charge the storage battery via the DC converter.

12. Vehicle characterized by the fact that it comprises the control system for recyclable energy in a vehicle defined in claim 11. Petition 870250084015, dated 09 / 18 / 2025, page 157 / 157

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