Systems and methods for using an electric motor to drive an internal combustion engine to regulate an aftertreatment system.

Abstract

A computer-implemented method for regulating an aftertreatment system of a hybrid power system including an electric motor and an internal combustion engine, the method comprising: determining whether the aftertreatment system is in a first temperature zone below a first temperature threshold; determining whether the power demand corresponding to the operation of the hybrid power system is in a first power demand zone below a power threshold; and if it is determined that the aftertreatment system is in the first temperature zone and the power demand of the hybrid power system is in the first power demand zone, then setting the hybrid power system to a compressor mode to heat the aftertreatment system.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to U.S. Provisional Patent Application No. 62 / 967,919, filed January 30, 2020, the entire contents of which are incorporated herein by reference.

[0003] This disclosure of the field

[0004] Some embodiments of the present invention relate to hybrid vehicles. More specifically, some embodiments of this disclosure provide methods and apparatus for regulating an aftertreatment system using an electric motor.

[0005] Background of this disclosure

[0006] With increasing efforts to limit greenhouse gas emissions from transportation, regulations regarding internal combustion engines are becoming increasingly stringent, particularly regarding the measurement of nitrogen oxide (NOx) emissions. Vehicle electrification has been recognized as a promising way to meet these regulations. However, for modern hybrid systems, significant amounts of NOx are generated during engine cold starts, during which the aftertreatment system is ineffective. Aftertreatment systems typically include selective catalytic reduction (SCR) systems. To meet future low NOx emission standards required by regulations, systems and methods for modulating aftertreatment systems to reduce NOx emissions from hybrid systems, especially during cold starts of internal combustion engines, are desired.

[0007] Brief Overview of this Disclosure

[0008] In several different implementations, a computer-based method for regulating an aftertreatment system of a hybrid power system including an electric motor and an internal combustion engine includes determining whether the aftertreatment system is in a first temperature zone below a first temperature threshold; determining whether the power demand corresponding to the operation of the hybrid power system is in a first power demand zone below a power threshold; and if it is determined that the aftertreatment system is in the first temperature zone and the power demand of the hybrid power system is in the first power demand zone, then setting the hybrid power system to a compressor mode to heat the aftertreatment system.

[0009] In various embodiments, a regulating system for regulating an aftertreatment system of a hybrid power system including an electric motor and an internal combustion engine includes a temperature zone determining module configured to determine whether the aftertreatment system is in a first temperature zone below a first temperature threshold; a power demand determining module configured to determine whether the power demand corresponding to the operation of the hybrid power system is in a first power demand zone below a power threshold; and a mode setting module configured to set the hybrid power system to a compressor mode to heat the aftertreatment system if the aftertreatment system is determined to be in the first temperature zone and the power demand of the hybrid power system is determined to be in the first power demand zone.

[0010] In various embodiments, a non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to perform the following operations: determine whether an after-processing system is in a first temperature zone below a first temperature threshold, the after-processing system being a hybrid power system comprising an electric motor and an internal combustion engine; determine whether the power demand corresponding to the operation of the hybrid power system is in a first power demand zone below a power threshold; and if it is determined that the after-processing system is in the first temperature zone and the power demand of the hybrid power system is in the first power demand zone, then set the hybrid power system to compressor mode to heat the after-processing system. Attached Figure Description

[0011] Figure 1 This is a simplified system diagram illustrating a hybrid power system 10 according to some embodiments of the present disclosure.

[0012] Figure 2 This is a simplified flowchart illustrating a method 30 for regulating a post-processing system according to some embodiments of the present disclosure.

[0013] Figure 3 This is a graph depicting the relationship between the efficiency of the selective catalytic reduction (SCR) system in the aftertreatment system and temperature.

[0014] Figure 4 It is a description used for execution Figure 2 The block diagram of the adjustment system 40 of the post-processing system is described in the method 30.

[0015] Detailed description of this disclosure

[0016] Some embodiments of the present invention relate to hybrid vehicles. More specifically, some embodiments of this disclosure provide methods and apparatus for regulating an aftertreatment system using an electric motor. In some embodiments, regulation is achieved by preheating the aftertreatment system.

[0017] Figure 1 This is a simplified system diagram illustrating a hybrid power system 10 according to some embodiments of the present disclosure. The hybrid power system 10 may be a hybrid engine system of a hybrid vehicle and includes a temperature sensor 11, an accelerometer 12, a system control unit (SCU) 13, an aftertreatment system 14, an internal combustion engine 15, an electric motor 16, an electric heater 17, and an energy storage system 18. The temperature sensor 11 (e.g., a physical or virtual sensor) may be configured to determine the system temperature of the aftertreatment system 14. The accelerometer 12 (e.g., vehicle throttle) may be configured to determine the vehicle's acceleration. The SCU 13 may be configured to house a regulating system (see [link to relevant documentation]). Figure 4 And by controlling the internal combustion engine 15, the electric heater 17, and the electric motor 16 to regulate the aftertreatment system 14 (e.g., via switches and / or actuators) (see [link]). Figure 2 The SCU 13 may include a mode setting module configured to change the mode of the internal combustion engine 15, the mode of the electric motor 16, and / or the mode of the electric heater 17. The aftertreatment system 14 is configured to convert greenhouse molecules (e.g., NOx) into non-greenhouse molecules (e.g., H2O) and may include a selective catalytic reduction (SCR) system 19. The hybrid system 10 may also include a valve opening system 20 configured to open to allow heated air to be delivered from the internal combustion engine 15 to the aftertreatment system 14. Although the valve opening system 20 is shown as a separate component, it or a portion thereof may be integrated with the internal combustion engine 15, such as an exhaust valve. The internal combustion engine 15 (e.g., a two-stroke or four-stroke engine) is configured to provide power under the control of the SCU 13 (e.g., via engine control unit 21) to accelerate the vehicle, operate as a compressor to provide heated air to the aftertreatment system 14, and optionally provide energy for charging the energy storage system 18. Electric motor 16 is configured to provide power to accelerate the vehicle and drive (e.g., rotate the crankshaft) the internal combustion engine 15 when in compressor mode. Electric heater 17 (e.g., exhaust heater or electrocatalytic converter heater) is configured to optionally provide heat to aftertreatment system 14. Energy storage system 18 (e.g., battery, fuel cell, supercapacitor, flow battery) is configured to provide power to electric motor 16 and is connected to SCU 13 so that SCU 13 can monitor the state of charge of the energy storage system.

[0018] Figure 2This is a flowchart of a method 30 for adjusting an aftertreatment system (e.g., aftertreatment system 14) according to some embodiments of the present disclosure. Method 30 includes: at 31, determining whether the aftertreatment system is in a first temperature zone; at 32, determining whether the power demand corresponding to the operation of a hybrid power system (e.g., hybrid power system 10) is in a first power demand zone; and at 33, setting the hybrid power system to compressor mode to heat the aftertreatment system.

[0019] At point 31, determining whether the post-processing system is within the first temperature zone includes using a temperature sensor (e.g., temperature sensor 11) to measure the system temperature or receiving the measured temperature of the post-processing system (e.g., post-processing system 14). The system temperature may be the temperature of the SCR system of the post-processing system (e.g., SCR system 19). Determining the system temperature zone involves comparing the system temperature with thresholds defining the zone boundaries. In one example, there are three zones defined by two thresholds. Figure 3 As shown, if the system temperature is below a first temperature threshold 51, the system temperature zone is the first temperature zone; if the system temperature is between the first temperature threshold 51 and a second higher temperature threshold 52, the system temperature zone is the second temperature zone; and if the system temperature is above the second temperature threshold 52, the system temperature zone is the third temperature zone. The second temperature zone may include the temperature at which the SCR system operates at its optimal conversion efficiency. Additional temperature zones may be defined in conjunction with additional thresholds. In some embodiments, method 30 further includes determining the conversion efficiency of the post-processing system or the SCR system of the post-processing system. For example, determining the conversion efficiency includes looking up the efficiency and temperature lookup table, which may correspond to, for example... Figure 3 The efficiency versus temperature curves are shown.

[0020] At point 32, it is determined whether the power demand corresponding to the operation of the hybrid system (e.g., hybrid system 10) includes the acceleration input of the vehicle in which the hybrid system is installed in a first power demand zone. For example, the power demand is determined to be zero in a first power demand zone that is below a power threshold and greater than zero, or in a second power demand zone that is greater than or equal to a power threshold. The acceleration input may correspond to the movement of the accelerator pedal, or may be determined, for example, using an accelerometer (e.g., accelerometer 12) based on sensed motion. The accelerometer may be connected to sense the movement of the accelerator pedal or the vehicle. For example, when the power demand is determined to be zero, the vehicle does not accelerate; when the power demand is determined to be in the first power demand zone, the vehicle accelerates with low acceleration; and when the power demand is determined to be in the second power demand zone, the vehicle accelerates with high acceleration.

[0021] To help avoid cold starts (during which the aftertreatment system 14 of the hybrid system 10 is inactive), the SCU 13 provides instructions according to method 30 to the internal combustion engine 15, electric motor 16, and / or electric heater 17 of the hybrid system 10, at least in part, based on system temperature and power requirements, to preheat the aftertreatment system 14. For example, when the system temperature is low (e.g., below...). Figure 3 When the first temperature threshold is reached, SCU 13 instructs the electric heater to turn on to heat the aftertreatment system. If the power demand is zero or low (e.g., in the first power zone below the power threshold), SCU 13 sets the electric motor 16 to drive the internal combustion engine 15 as a compressor and operates the valve to open system 20 so that the heated airflow from the internal combustion engine 15 can heat the aftertreatment system 14.

[0022] At point 33, if the aftertreatment system (e.g., aftertreatment system 14) is determined to be in a first temperature zone and the power demand of the hybrid system is determined to be in a first power demand zone, the step of setting the hybrid system (e.g., hybrid system 10) to compressor mode is performed. In some examples, setting the hybrid system to compressor mode at point 33 includes using the hybrid system's system control unit (e.g., SCU 13) to control one or more clutches, the internal combustion engine, the electric motor, the heater, and / or valves of the vehicle. In some examples, setting the hybrid system to compressor mode includes setting the hybrid system's internal combustion engine (e.g., internal combustion engine 15) to operate as a compressor to heat the aftertreatment system. In some examples, setting the hybrid system to compressor mode includes setting a valve opening system (e.g., valve opening system 20) to open so that heated air can travel from the internal combustion engine to the aftertreatment system. In some implementations, when the aftertreatment system is in a first temperature zone and the determined power demand is in a first power demand zone, at point 33, setting the hybrid power system to compressor mode to heat the aftertreatment system includes setting the electric heater to turn on to heat the aftertreatment system.

[0023] Figure 4 It is a description used for execution Figure 2The block diagram of the regulation system 40 for regulating an aftertreatment system (e.g., aftertreatment system 14) is described in the method 30. Regulation system 40 includes: a temperature zone determination module 41 configured to determine whether the aftertreatment system is in a first temperature zone; a power demand determination module 42 configured to determine whether the power demand corresponding to the operation of the hybrid system is in a first power demand zone; and a mode setting module 43 configured to set the hybrid system to compressor mode to heat the aftertreatment system. Regulation system 40 may be stored in a system control unit (e.g., system control unit 13). In some examples, regulation system 40 is configured to regulate the aftertreatment system of a hybrid system including an electric motor and an internal combustion engine, and may be part of the hybrid system or a separate unit. Regulation system 40 can be used with various hybrid powertrain systems, including mild hybrid systems, strong hybrid systems, parallel architecture hybrid systems, serial architecture hybrid systems, serial-parallel architecture hybrid systems, and / or range-extended hybrid systems. In some examples, the regulating system 40 is particularly effective in reducing NOx emissions from a strong hybrid engine system than from a mild hybrid engine system. For instance, a strong hybrid engine system that uses an electric motor throughout the vehicle's operation can reduce NOx emissions to a greater extent by adjusting the regulating system 40 compared to a mild hybrid engine system.

[0024] In various examples, the regulating system 40 is configured to regulate the SCR system or other components of the aftertreatment system, for example, to raise the temperature of the SCR system or other components before fuel injection into the hybrid system. In some examples, the regulating system 40 is configured to help regulate the aftertreatment system to operate at a desired temperature to achieve optimal conversion efficiency (see [link to relevant documentation]). Figure 3 In some examples, the regulating system 40 is configured to heat the aftertreatment system to avoid cold starts, thereby reducing NOx emissions. The vehicle's NOx emissions can be represented by the system output NOx (SONOx). In various examples, the regulating system 40 is configured to reduce SONOx by regulating the aftertreatment system to improve SCR conversion efficiency, resulting in a greater amount of NOx emissions from the vehicle engine being converted into fewer harmful molecules. In some examples, the regulating system 40 is configured to control a valve opening system (e.g., valve opening system 20) that is configured to open between the internal combustion engine and the aftertreatment system to allow heated air from the internal combustion engine in compressor mode to flow into the aftertreatment system, thereby heating the aftertreatment system.

[0025] In some implementations, when the temperature of the SCR system 19 or the aftertreatment system 14 is below a first temperature threshold 51 and the power demand of the hybrid system 10 is within a first power demand zone, the SCU 13 or the regulating system 40 is configured to set the hybrid system to compressor mode and / or to turn on the electric heater 17 to heat the aftertreatment system. In compressor mode, the electric motor of the hybrid system can drive the internal combustion engine as a compressor to heat air for heating the aftertreatment system. Operating the internal combustion engine as a compressor requires closing the intake and exhaust valves of the combustion cavity, then rotating the crankshaft to move the cylinders from bottom dead center to top dead center in the combustion cavity, thereby compressing the air confined in the combustion cavity to increase the air temperature, and then opening the exhaust valves to allow the compressed (and heated) air to escape from the combustion cavity.

[0026] In several different embodiments, a computer-implemented method for regulating an aftertreatment system of a hybrid power system including an electric motor and an internal combustion engine includes: determining whether the aftertreatment system is in a first temperature zone below a first temperature threshold; determining whether the power demand corresponding to the operation of the hybrid power system is in a first power demand zone below a power threshold; and if it is determined that the aftertreatment system is in the first temperature zone and the power demand of the hybrid power system is in the first power demand zone, then setting the hybrid power system to a compressor mode to heat the aftertreatment system. In some examples, the method is based on... Figure 2 Method 30 implemented and / or by Figure 4 The regulation system 40 is implemented.

[0027] In some implementations, setting the hybrid system to compressor mode includes setting the internal combustion engine to operate as a compressor to heat the aftertreatment system.

[0028] In some embodiments, configuring the internal combustion engine to operate as a compressor includes: configuring the electric motor to enable the internal combustion engine to operate as a compressor; controlling the intake valve to provide air at a first temperature into the internal combustion engine; configuring the internal combustion engine to compress the air to heat the air to a second temperature equal to or higher than the first temperature; and controlling the exhaust valve to open, allowing the heated air at the second temperature to travel from the engine to the aftertreatment system.

[0029] In some implementations, the internal combustion engine is configured to operate as a compressor, including a control valve opening system and a fuel injection system, which allow air to enter the internal combustion engine while fuel is not injected into it.

[0030] In some implementations, determining whether the post-processing system is in a first temperature zone includes using a temperature sensor (e.g., a virtual temperature sensor or a physical temperature sensor) to determine the system temperature corresponding to the post-processing system.

[0031] In some embodiments, the computer implementation method further includes: if it is determined that the post-processing system is in a first temperature zone, setting an electric heater connected to the post-processing system to heat the post-processing system.

[0032] In some implementations, determining whether the power demand corresponding to the operation of the hybrid power system is included in the first power demand zone is based at least in part on the acceleration input.

[0033] In various embodiments, a regulating system for regulating an aftertreatment system of a hybrid power system including an electric motor and an internal combustion engine includes: a temperature zone determination module configured to determine whether the aftertreatment system is in a first temperature zone below a first temperature threshold; a power demand determination module configured to determine whether the power demand corresponding to the operation of the hybrid power system is in a first power demand zone below a power threshold; and a mode setting module configured to set the hybrid power system to a compressor mode to heat the aftertreatment system if the aftertreatment system is determined to be in the first temperature zone and the power demand of the hybrid power system is determined to be in the first power demand zone. In some examples, the regulating system is configured to implement... Figure 2 Method 30 and / or similar Figure 4 The regulation system 40.

[0034] In some implementations, the mode setting module is also configured to set the internal combustion engine to operate as a compressor to heat the aftertreatment system.

[0035] In some embodiments, the mode setting module is further configured to: set the electric motor to operate the internal combustion engine as a compressor; control the intake valve to provide air at a first temperature into the internal combustion engine; set the internal combustion engine to compress the air to heat the air to a second temperature equal to or higher than the first temperature; and control the exhaust valve to open, allowing the heated air at the second temperature to travel from the engine to the aftertreatment system.

[0036] In some implementations, the mode setting module is also configured to control the valve opening system and the fuel injection system, so that air enters the internal combustion engine while fuel is not injected into the internal combustion engine.

[0037] In some implementations, the temperature zone determination module is also configured to use a temperature sensor (e.g., a virtual or physical temperature sensor) to determine the system temperature corresponding to the post-processing system.

[0038] In some implementations, the mode setting module is also configured to turn on the electric heater connected to the post-processing system to heat the post-processing system if the post-processing system is determined to be in the first temperature zone.

[0039] In some implementations, the power demand determination module is also configured to determine the power demand corresponding to the hybrid power system based at least in part on the acceleration input.

[0040] In various embodiments, a non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to perform the following operations: determine whether an after-processing system is in a first temperature zone below a first temperature threshold, the after-processing system being a hybrid power system comprising an electric motor and an internal combustion engine; determine whether the power demand corresponding to the operation of the hybrid power system is in a first power demand zone below a power threshold; and if it is determined that the after-processing system is in the first temperature zone and the power demand of the hybrid power system is in the first power demand zone, then set the hybrid power system to a compressor mode to heat the after-processing system. In some examples, when executed by a processor, the non-transitory computer-readable medium causes the processor to perform... Figure 2 Method 30. In some examples, non-transitory computer-readable media may be provided by Figure 4 The regulation system 40 is executed.

[0041] In some embodiments, setting the hybrid power system to compressor mode when executed by the processor on the non-transitory computer-readable medium includes setting the internal combustion engine to operate as a compressor to heat the aftertreatment system.

[0042] In some embodiments, setting the internal combustion engine to operate as a compressor, when executed by the processor from the non-transitory computer-readable medium, includes: setting the electric motor to cause the internal combustion engine to operate as a compressor; controlling the intake valve to provide air at a first temperature into the internal combustion engine; setting the internal combustion engine to compress the air to heat the air to a second temperature equal to or higher than the first temperature; and controlling the exhaust valve to open, allowing the heated air at the second temperature to travel from the engine to the aftertreatment system.

[0043] In some embodiments, setting the internal combustion engine to operate as a compressor, when executed by the processor from the non-transitory computer-readable medium, includes controlling a valve opening system and a fuel injection system such that air enters the internal combustion engine while fuel is not injected into the internal combustion engine.

[0044] In some implementations, determining whether the post-processing system is in a first temperature zone when the processor executes a non-transitory computer-readable medium includes using a temperature sensor to determine the system temperature corresponding to the post-processing system.

[0045] In some embodiments, the non-transitory computer-readable medium, when executed by a processor, causes the processor to also perform actions such as setting an electric heater connected to the post-processing system to turn on to heat the post-processing system if the post-processing system is determined to be in the first temperature zone.

[0046] In some implementations, determining whether the post-processing system is in a first power demand zone when the non-transitory computer-readable medium is executed by the processor includes determining the power demand corresponding to the hybrid power system based at least in part on acceleration input.

[0047] It should be understood that, for example, some or all components of the various embodiments of this disclosure are implemented individually and / or in combination with at least one other component using one or more software components, one or more hardware components, and / or one or more combinations of software and hardware components. In another example, some or all components of the various embodiments of this disclosure are implemented individually and / or in combination with at least one other component in one or more circuits, such as one or more analog circuits and / or one or more digital circuits. In yet another example, although the above embodiments relate to specific features, the scope of this disclosure also includes embodiments with different combinations of features and embodiments that do not include all of the stated features. In yet another example, various embodiments and / or examples of this disclosure may be combined.

[0048] Furthermore, the methods and systems described herein can be implemented on many different types of processing devices using program code that includes program instructions executable by a device processing subsystem. Software program instructions may include source code, object code, machine code, or any other stored data operable to cause the processing system to perform the methods and operations described herein. However, other implementations may also be used, such as firmware or even hardware appropriately designed to perform the methods and systems described herein.

[0049] Data in systems and methods (e.g., associations, mappings, data inputs, data outputs, intermediate data results, final data results, etc.) can be stored and implemented in one or more different types of computer-implemented data stores, such as different types of storage devices and programming constructs (e.g., RAM, ROM, EEPROM, flash memory, flat files, databases, programming data structures, programming variables, IF-THEN (or similar) statement constructs, application programming interfaces, etc.). Note that data structures describe the format used to organize and store data in databases, programs, memory, or other computer-readable media used by computer programs.

[0050] The systems and methods described herein can be provided on many different types of computer-readable media, including computer storage mechanisms (e.g., CD-ROMs, disks, RAM, flash memory, computer hard drives, DVDs, etc.) containing instructions (e.g., software) for execution by a processor to perform the operations of the methods and implement the systems described herein. The computer components, software modules, functions, data stores, and data structures described herein can be directly or indirectly connected to each other to allow the data flow necessary for their operation. It should also be noted that modules or processors include code units that perform software operations and can be implemented as, for example, subroutine units of code, or software functional units of code, or objects (as in object-oriented paradigms), or applets, or computer scripting languages, or another type of computer code. Depending on the available resources, software components and / or functions may reside on a single computer or be distributed across multiple computers.

[0051] A computing system may include client devices and servers. Client devices and servers are typically geographically separated and usually interact through communication networks. The relationship between client devices and servers arises from computer programs running on various computers that have client-server relationships with each other.

[0052] This specification contains numerous details of specific embodiments. Certain features described herein in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments. Furthermore, although features may be described above as functioning in certain combinations, in some cases one or more features from a combination may be removed from the combination, and combinations may be, for example, for sub-combinations or variations of sub-combinations.

[0053] Similarly, although the operations are depicted in a specific order in the accompanying drawings, this should not be construed as requiring these operations to be performed in the specific order shown or sequentially, or to perform all the shown operations to achieve the desired result. In some cases, multitasking and parallel processing may be advantageous. Furthermore, the separation of the various system components in the above embodiments should not be construed as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products.

[0054] While specific embodiments of this disclosure have been described, those skilled in the art will understand that other equivalent embodiments exist. Therefore, it should be understood that this disclosure is not limited to the embodiments specifically shown.

Claims

1. A computer-based method for regulating an after-treatment system of a hybrid power system comprising an electric motor and an internal combustion engine, the computer-based method comprising the following steps: Determine whether the post-processing system is in a first temperature zone below a first temperature threshold; Determine whether the power demand corresponding to the operation of the hybrid power system is in a first power demand zone below the power threshold; as well as If it is determined that the aftertreatment system is in the first temperature range and the power demand of the hybrid power system is in the first power demand range, then the hybrid power system is set to compressor mode to heat the aftertreatment system. The step of determining whether the power demand corresponding to the operation of the hybrid power system is within the first power demand zone includes: The power demand corresponding to the hybrid power system is determined at least in part based on positive acceleration input. The step of setting the hybrid power system to compressor mode includes: The internal combustion engine is configured to operate as a compressor in order to heat the aftertreatment system.

2. The computer implementation method according to claim 1, wherein, The steps of configuring the internal combustion engine to operate as a compressor include: The electric motor is configured to cause the internal combustion engine to operate as a compressor. The intake valve is controlled to provide air at a first temperature into the internal combustion engine; The internal combustion engine is configured to compress air to heat it to a second temperature equal to or higher than the first temperature; and The exhaust valve is opened, allowing heated air at the second temperature to travel from the engine to the aftertreatment system.

3. The computer implementation method according to claim 1, wherein, The steps of setting the internal combustion engine to operate as a compressor include: The control valve opening system and fuel injection system allow air to enter the internal combustion engine while fuel is not injected into the internal combustion engine.

4. The computer implementation method according to claim 1, wherein, The steps for determining whether the post-processing system is in the first temperature zone include: A temperature sensor is used to determine the system temperature corresponding to the post-processing system.

5. The computer implementation method according to claim 1, further comprising the following steps: If the post-processing system is determined to be in the first temperature zone, the electric heater connected to the post-processing system is set to turn on to heat the post-processing system.

6. A regulating system for regulating an aftertreatment system of a hybrid power system comprising an electric motor and an internal combustion engine, the regulating system comprising: A temperature zone determination module is configured to determine whether the post-processing system is in a first temperature zone below a first temperature threshold. A power demand determination module is configured to determine whether the power demand corresponding to the operation of the hybrid power system is in a first power demand zone below a power threshold. as well as A mode setting module is configured to: if the aftertreatment system is determined to be in the first temperature zone and the power demand of the hybrid power system is determined to be in the first power demand zone, then set the hybrid power system to compressor mode to heat the aftertreatment system. The power demand determination module is further configured as follows: The power demand corresponding to the hybrid power system is determined at least in part based on positive acceleration input. The mode setting module sets the hybrid system to compressor mode by setting the internal combustion engine to operate as a compressor to heat the aftertreatment system.

7. The regulating system according to claim 6, wherein, The mode setting module is also configured to: The electric motor is configured to cause the internal combustion engine to operate as a compressor. The intake valve is controlled to provide air at a first temperature into the internal combustion engine; The internal combustion engine is configured to compress air to heat it to a second temperature equal to or higher than the first temperature; as well as The exhaust valve is opened, allowing heated air at the second temperature to travel from the engine to the aftertreatment system.

8. The regulating system according to claim 6, wherein, The mode setting module is also configured to: The control valve opening system and fuel injection system allow air to enter the internal combustion engine while fuel is not injected into the internal combustion engine.

9. The regulating system according to claim 6, wherein, The temperature zone determination module is also configured to: A temperature sensor is used to determine the system temperature corresponding to the post-processing system.

10. The regulating system according to claim 6, wherein, The mode setting module is also configured to: If the post-processing system is determined to be in the first temperature zone, the electric heater connected to the post-processing system is set to turn on to heat the post-processing system.

11. A non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to perform: Determine whether the after-treatment system is in a first temperature zone below a first temperature threshold, wherein the after-treatment system is a hybrid power system including an electric motor and an internal combustion engine; Determine whether the power demand corresponding to the operation of the hybrid power system is within a first power demand zone below a power threshold; and If it is determined that the aftertreatment system is in the first temperature range and the power demand of the hybrid power system is in the first power demand range, then the hybrid power system is set to compressor mode to heat the aftertreatment system. in, The step of determining whether the power demand corresponding to the operation of the hybrid power system is within a first power demand zone includes: determining the power demand corresponding to the hybrid power system based at least in part on positive acceleration input. The step of setting the hybrid power system to compressor mode, which is executed when carried out by the processor, includes: The internal combustion engine is configured to operate as a compressor in order to heat the aftertreatment system.

12. The non-transitory computer-readable medium according to claim 11, wherein, Setting the internal combustion engine to operate as a compressor, when executed by the processor, includes: The electric motor is configured to cause the internal combustion engine to operate as a compressor. The intake valve is controlled to provide air at a first temperature into the internal combustion engine; The internal combustion engine is configured to compress air to heat it to a second temperature equal to or higher than the first temperature; and The exhaust valve is opened, allowing heated air at the second temperature to travel from the engine to the aftertreatment system.

13. The non-transitory computer-readable medium according to claim 11, wherein, Setting the internal combustion engine to operate as a compressor, when executed by the processor, includes: The control valve opening system and fuel injection system allow air to enter the internal combustion engine while fuel is not injected into the internal combustion engine.

14. The non-transitory computer-readable medium according to claim 11, wherein, Determining whether the post-processing system is in the first temperature zone, when executed by the processor, includes: A temperature sensor is used to determine the system temperature corresponding to the post-processing system.

15. The non-transitory computer-readable medium according to claim 11, wherein, When executed by the processor, the processor further executes: If the post-processing system is determined to be in the first temperature zone, the electric heater connected to the post-processing system is set to turn on to heat the post-processing system.

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