A range extending vehicle stop method, system and vehicle

Abstract

The application provides a range extending vehicle parking method, system and vehicle. The parking method comprises the following steps: receiving an engine parking request; obtaining an ambient temperature and an intake temperature according to the engine parking request, and judging whether the throttle valve will be in icing condition according to the ambient temperature and the intake temperature, so as to select a corresponding parking mode; when the first parking mode is selected, the engine is directly parked; when the second parking mode is selected, the intake temperature is reduced until the non-icing condition is reached, and then the engine is parked. According to the current engine intake temperature and the ambient temperature, it is judged whether the engine can be parked, so as to prevent the throttle valve from being unable to normally operate due to the throttle valve icing, and to prevent the engine from being difficult to start or even failing. The effect of preventing the throttle valve from icing after the range extending vehicle with EGR technology is parked at low temperature is realized. Meanwhile, the ordinary throttle valve is used to replace the throttle valve with heating function, and the vehicle cost is saved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobile electronics, and particularly relates to a range-extending vehicle stopping method, system and vehicle. BACKGROUND

[0002] Exhaust gas recirculation (EGR) technology is increasingly applied to range-extend electric vehicles (REEV) as an effective method for improving thermal efficiency and reducing emissions. It introduces a certain proportion of exhaust gas from the exhaust system into the intake manifold, allowing high-temperature exhaust gas containing inert gas to mix with fresh air and enter the combustion chamber. Since the exhaust gas does not participate in combustion, it reduces the maximum combustion temperature in the cylinder and the amount of oxygen in the combustion chamber, thereby effectively reducing NOx emissions (which are mainly generated under high-temperature and oxygen-rich conditions). At the same time, the introduction of exhaust gas into the intake pipe effectively reduces throttle loss (at low load, the throttle opening needs to be increased to achieve the same fresh charge), improving thermal efficiency and reducing fuel consumption to some extent.

[0003] To reduce fuel consumption, the operating temperature range of EGR needs to be as large as possible. However, when the ambient temperature is low and the engine is running at high load for a long time, the high-temperature exhaust gas introduced into the intake manifold by EGR will condense into water when it encounters the relatively low-temperature throttle. If the engine meets the stopping conditions at this time, it may directly stop from high-load power generation, the throttle body closes, and the condensed water quickly condenses on the throttle. In areas with low ambient temperature, this can cause the throttle to freeze and fail to operate normally, making it difficult or even impossible to start the engine.

[0004] Some engine manufacturers have developed throttle heating devices to prevent such situations. They design water channels inside the throttle and introduce high-temperature coolant to heat the throttle, keeping it at a relatively high temperature to prevent water vapor from condensing on the throttle body. However, this method increases the cost of the engine. SUMMARY

[0005] In view of the above shortcomings of the prior art, the present application aims to provide a range-extending vehicle stopping method, system and vehicle to improve the problem of engine stopping directly from high-load power generation, throttle body closing, and condensed water quickly condensing on the throttle, which can cause the throttle to freeze and fail to operate normally in areas with low ambient temperature, making it difficult or even impossible to start the engine.

[0006] To achieve the above and other related purposes, the present application provides a range-extending vehicle stopping method, comprising:

[0007] receiving an engine stopping request;

[0008] According to the engine stop request, an ambient temperature and an intake temperature are acquired, and whether icing condition of a throttle valve of the vehicle will occur is determined according to the ambient temperature and the intake temperature, so as to select a corresponding stop mode;

[0009] When the first stop mode is selected, the engine is directly stopped;

[0010] When the second stop mode is selected, the intake temperature is reduced until the non-icing condition is reached, and then the engine is stopped.

[0011] In an embodiment of the present application, the step of determining whether the icing condition of the throttle valve will occur according to the ambient temperature and the intake temperature, so as to select the corresponding stop mode comprises:

[0012] According to a preset throttle valve icing region table, whether the ambient temperature and the intake temperature are located in an icing region of the throttle valve icing region table is determined;

[0013] If yes, the icing condition of the throttle valve will occur, and the second stop mode is selected;

[0014] If no, the icing condition of the throttle valve will not occur, and the first stop mode is selected.

[0015] In an embodiment of the present application, the throttle valve icing region table is obtained by the following steps:

[0016] A throttle valve icing experiment is performed on the vehicle to acquire a throttle valve icing curve, a region above the icing curve is an icing region, and a region below the icing curve is a non-icing region.

[0017] In an embodiment of the present application, the step of acquiring the ambient temperature and the intake temperature according to the engine stop request, and determining whether the icing condition of the throttle valve will occur according to the ambient temperature and the intake temperature, so as to select the corresponding stop mode comprises:

[0018] According to the engine stop request, the ambient temperature is acquired, and whether the ambient temperature is less than a preset threshold value is determined;

[0019] If no, the first stop mode is selected;

[0020] If yes, the intake temperature is acquired;

[0021] Whether the icing condition of the throttle valve will occur is determined according to the ambient temperature and the intake temperature;

[0022] If no, the first stop mode is selected;

[0023] If yes, a second shutdown mode is selected.

[0024] In one embodiment of the present application, if the first shutdown mode is selected, the step of controlling the engine to shutdown directly comprises:

[0025] When the first shutdown mode is selected, a shutdown instruction is sent to the engine controller, and the engine controller controls the engine to shutdown according to the shutdown instruction.

[0026] In one embodiment of the present application, if the second shutdown mode is selected, the step of controlling the engine to shutdown after the intake air temperature is reduced to a non-icing condition comprises:

[0027] When the second shutdown mode is selected, a low-power generation instruction is sent to the engine controller, and the engine controller controls the power of the engine to be reduced according to the low-power generation instruction to reduce the intake air temperature, and a shutdown instruction is sent to the engine controller after the intake air temperature is reduced to a non-icing condition, and the engine controller controls the engine to shutdown according to the shutdown instruction.

[0028] In one embodiment of the present application, it further comprises: controlling the opening degree of the throttle valve to be reduced according to the low-power generation instruction.

[0029] In one embodiment of the present application, if the second shutdown mode is selected, the step of controlling the engine to shutdown after the intake air temperature is reduced to a non-icing condition further comprises:

[0030] When the second shutdown mode is selected, a temperature reduction instruction is sent to the engine controller, and the engine controller controls a fan in an exhaust gas recirculation system to be started according to the temperature reduction instruction to reduce the intake air temperature, and the engine is controlled to shutdown after the intake air temperature is reduced to a non-icing condition.

[0031] The present application further provides an extended-range vehicle shutdown system for preventing icing of a throttle valve, comprising:

[0032] An information acquisition module is configured to receive an engine shutdown request.

[0033] A shutdown mode selection module is configured to acquire an ambient temperature and an intake air temperature according to the engine shutdown request, to determine whether the throttle valve will be in an icing condition according to the ambient temperature and the intake air temperature, and to select a corresponding shutdown mode according to whether the throttle valve of the vehicle will be in an icing condition.

[0034] A shutdown control module is configured to control the engine to shutdown according to the corresponding shutdown mode.

[0035] The application also provides a vehicle comprising a vehicle controller configured to implement the steps of the method for stopping the extended-range vehicle.

[0036] The application provides a method, system and vehicle for stopping an extended-range vehicle, which prevents the throttle valve from icing without increasing the cost of other components. The method compares the current engine intake temperature, ambient temperature and icing conditions to determine whether the vehicle can be stopped to prevent the throttle valve from icing and failing to operate normally, which causes the engine to be difficult or even impossible to start. The method prevents the throttle valve of an extended-range vehicle with EGR technology from icing after the vehicle is stopped at low temperature. The method uses a normal throttle valve instead of a throttle valve with heating function, which saves the cost of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor.

[0038] Figure 1 A flowchart of the method for stopping the extended-range vehicle according to an embodiment of the application is shown in FIG. 1.

[0039] Figure 2 A flowchart of the method for selecting the stopping mode according to an embodiment of the application is shown in FIG. 2.

[0040] Figure 3 A diagram of the icing area table according to an embodiment of the application is shown in FIG. 3.

[0041] Figure 4 A flowchart of the method for selecting the stopping mode according to another embodiment of the application is shown in FIG. 4.

[0042] Figure 5 A block diagram of the system for stopping the extended-range vehicle according to an embodiment of the application is shown in FIG. 5. DETAILED DESCRIPTION

[0043] The embodiments of the application are described below through specific examples. Those skilled in the art can easily understand other advantages and effects of the application from the disclosure. The application can also be implemented or applied through different specific embodiments, and the details in the description can be modified or changed based on different views and applications without departing from the spirit of the application.

[0044] It should be noted that the diagrams provided in the embodiments only schematically illustrate the basic concepts of the present application, and only the components related to the present application are shown in the diagrams, rather than being drawn according to the number, shape and size of the components in actual implementation. The shapes, number and proportion of the components in actual implementation can be arbitrarily changed, and the layout pattern of the components can be more complex.

[0045] Referring to Figure 1 As shown in the drawings, the present application provides a range-extended vehicle stopping method, a system and a vehicle. The range-extended vehicle stopping method is exemplarily applied to a vehicle with an exhaust gas recirculation system. It should be noted that a certain proportion of exhaust gas is introduced into an intake manifold from an exhaust system through the exhaust gas recirculation system, so that high-temperature exhaust gas containing inert gas is mixed with fresh air to enter a combustion chamber. The gas temperature introduced into the intake manifold through the exhaust gas recirculation system is the intake temperature. When the ambient temperature is low and the engine is operated at a high load for a long time, the high-temperature exhaust gas introduced into the intake manifold by the EGR has a high intake temperature, which causes the water vapor in the exhaust gas to condense into water when meeting the throttle valve with a low temperature. Therefore, after the engine is stopped, the condensed water on the throttle valve freezes to cause the throttle valve to fail to normally operate, resulting in difficulty or even failure of engine starting.

[0046] Referring to Figure 1 As shown in the drawings, Figure 1 A flowchart of the range-extended vehicle stopping method provided in an embodiment of the present application is shown. Specifically, the range-extended vehicle stopping method includes the following steps:

[0047] S1, receiving an engine stopping request; for example, receiving the engine stopping request by a vehicle controller.

[0048] S2, acquiring an ambient temperature and an intake temperature according to the engine stopping request, and judging whether the throttle valve of the vehicle will be in a freezing condition according to the ambient temperature and the intake temperature, to select a corresponding stopping mode; for example, the vehicle controller acquires the ambient temperature and the intake temperature according to the engine stopping request. The ambient temperature and the intake temperature can be directly detected by a sensor at a corresponding position of the vehicle. When the vehicle controller receives the engine stopping request, the ambient temperature and the intake temperature are directly read. The vehicle controller judges whether the throttle valve will be in a freezing condition according to the acquired ambient temperature and intake temperature, to select a corresponding stopping mode.

[0049] Referring to Figure 2 As shown in the drawings, Figure 2 A flowchart of the selection of the stopping mode provided in an embodiment of the present application is shown. The step of judging whether the throttle valve will be in a freezing condition according to the ambient temperature and the intake temperature, to select a corresponding stopping mode includes:

[0050] S21, judging whether the ambient temperature and the intake temperature are located in the icing region of the throttle valve icing region table according to the preset throttle valve icing region table; specifically, when a coordinate point composed of the ambient temperature as the horizontal coordinate and the intake temperature as the vertical coordinate is located on the icing region or the icing curve, it is determined that the ambient temperature and the intake temperature are located in the icing region, otherwise, they are located in the non-icing region. It should be noted that please refer to Figure 3 , Figure 3 which is shown as a throttle valve icing region table, which can be obtained in advance by performing a throttle valve icing test on a vehicle in an environmental chamber and pre-stored in the vehicle control unit. Specifically, the throttle valve icing region table is obtained by the following steps, including:

[0051] Performing a throttle valve icing test on a vehicle to obtain a throttle valve icing curve, the region above the icing curve is the icing region, and the region below the icing curve is the non-icing region. That is, the horizontal coordinate of the throttle valve icing curve corresponds to the ambient temperature, and the vertical coordinate corresponds to the ambient temperature, for example, Figure 4 An exemplary throttle valve icing region table is shown.

[0052] S22, if yes, the throttle valve icing condition occurs, and the second stop mode is selected; that is, when the ambient temperature and the intake temperature are located in the icing region, the vehicle control unit determines that the throttle valve icing condition occurs, thereby selecting the second stop mode to control the engine to stop according to the second stop mode.

[0053] S23, if no, the throttle valve icing condition does not occur, and the first stop mode is selected; that is, when the ambient temperature and the intake temperature are located in the non-icing region, the vehicle control unit determines that the throttle valve icing condition does not occur, thereby selecting the first stop mode to control the engine to stop according to the first stop mode.

[0054] S3, when the first stop mode is selected, the engine is directly stopped; specifically, when the first stop mode is selected, the step of controlling the engine to directly stop includes: when the first stop mode is selected, a stop instruction is directly sent to the engine controller, and the engine controller controls the engine to stop according to the stop instruction. For example, when the vehicle control unit selects the first stop mode, the vehicle control unit directly sends a stop instruction to the engine controller, and the engine controller directly controls the engine to stop after receiving the stop instruction. Of course, in some other embodiments, the engine can also be directly controlled to stop by the vehicle control unit.

[0055] S4, when the second shutdown mode is selected, the intake air temperature is controlled to be reduced until the non-icing condition is reached, and then the engine is controlled to be shut down; specifically, when the second shutdown mode is selected, the intake air temperature is controlled to be reduced until the non-icing condition is reached, and then the engine is controlled to be shut down, which includes:

[0056] When the second shutdown mode is selected, a low-power generation instruction is sent to the engine controller, the engine controller controls the power of the engine to be reduced according to the low-power generation instruction, so as to reduce the intake air temperature, and then a shutdown instruction is sent to the engine controller, the engine controller controls the engine to be shut down according to the shutdown instruction. That is, when the second shutdown mode is selected by the vehicle controller, a low-power generation instruction is sent to the engine controller according to the second shutdown mode, the engine controller controls the power of the engine to be reduced according to the low-power generation instruction, so as to reduce the intake air temperature, and then a shutdown instruction is sent to the engine controller by the vehicle controller when the vehicle controller determines that the throttle reaches the non-icing condition, and the engine controller controls the engine to be shut down after receiving the shutdown instruction. Of course, in some other embodiments, the engine can also be directly controlled by the vehicle controller to reduce the power and be shut down. It should be noted that, while the engine controller controls the power of the engine to be reduced, the opening of the throttle is also controlled to be reduced according to the low-power generation instruction, so as to adapt to the power of the engine and ensure the normal operation of the engine.

[0057] In the embodiment, when the second shutdown mode is selected, the intake air temperature is controlled to be reduced until the non-icing condition is reached, and then the engine is controlled to be shut down, which further includes: when the second shutdown mode is selected, a temperature reduction instruction is sent to the engine controller, the engine controller controls the fan in the exhaust gas recirculation system to be started according to the temperature reduction instruction, so as to reduce the intake air temperature, and then the engine is controlled to be shut down when the non-icing condition is reached. That is, when the second shutdown mode is selected by the vehicle controller, a temperature reduction instruction is sent to the engine controller according to the second shutdown mode, the engine controller controls the fan in the exhaust gas recirculation system to be started according to the temperature reduction instruction, so as to reduce the intake air temperature, and then a shutdown instruction is sent to the engine controller by the vehicle controller when the vehicle controller determines that the throttle reaches the non-icing condition, and the engine controller controls the engine to be shut down after receiving the shutdown instruction. Of course, in some other embodiments, the fan can also be directly controlled by the vehicle controller to be started and be shut down.

[0058] Please refer to Figure 4 the figure, Figure 4The flowchart for selecting the stop mode provided in an embodiment of the present application specifically includes the following steps of acquiring the ambient temperature and the intake temperature according to the engine stop request, and judging whether the throttle valve will be in icing condition according to the ambient temperature and the intake temperature to select the corresponding stop mode.

[0059] S211, acquiring the ambient temperature according to the engine stop request, and judging whether the ambient temperature is less than a preset threshold; it should be noted that the condensed water on the throttle valve will be iced when the ambient temperature is less than a certain threshold, therefore, the vehicle controller acquires the ambient temperature according to the engine stop request when receiving the engine stop request, and judges whether the ambient temperature is less than a preset threshold, for example, the preset threshold is set to 0℃.

[0060] S212, if not, selecting the first stop mode; when the ambient temperature acquired by the vehicle controller is greater than the preset threshold, at this time, the throttle valve will not be in icing condition, therefore, the vehicle controller selects the first stop mode, and sends the stop instruction to the engine controller, and the engine controller controls the engine to directly stop according to the stop instruction.

[0061] S213, if yes, acquiring the intake temperature; when the ambient temperature acquired by the vehicle controller is less than the preset threshold, at this time, the throttle valve may be in icing condition, therefore, the vehicle controller continues to acquire the intake temperature, and judges whether the throttle valve will be in icing condition according to the intake temperature and the ambient temperature.

[0062] S214, judging whether the throttle valve will be in icing condition according to the ambient temperature and the intake temperature; the vehicle controller judges whether the throttle valve will be in icing condition according to the ambient temperature and the intake temperature acquired thereby to select the corresponding stop mode.

[0063] S215, if not, selecting the first stop mode; for example, when the ambient temperature and the intake temperature are located in the non-icing region, the vehicle controller determines that the throttle valve will not be in icing condition, thereby selecting the first stop mode; when the vehicle controller selects the first stop mode, the vehicle controller directly sends the stop instruction to the engine controller, and the engine controller directly controls the engine to stop after receiving the stop instruction.

[0064] S216, if yes, selecting the second stop mode; for example, when the ambient temperature and the intake temperature are located in the icing region, the vehicle controller determines that the throttle valve will be in icing condition, thereby selecting the second stop mode to control the engine to stop according to the second stop mode.

[0065] Please refer to Figure 1 andFigure 5 as shown, Figure 5 A structural block diagram of a throttle-icing-preventing extended-range vehicle stop system provided in an embodiment of the present application is provided in the embodiment, and the throttle-icing-preventing extended-range vehicle stop system corresponds to the extended-range vehicle stop method in the above embodiment. The throttle-icing-preventing extended-range vehicle stop system 100 includes an information acquisition module 10, a stop mode selection module 20, and a stop control module 30. The functions of the modules are described in detail as follows.

[0066] The information acquisition module 10 is configured to receive an engine stop request and acquire an ambient temperature and an intake temperature according to the engine stop request. Specifically, the information acquisition module 10 receives an engine stop request and acquires an ambient temperature and an intake temperature according to the engine stop request.

[0067] The stop mode selection module 20 is configured to determine whether the throttle will be in an icing condition according to the ambient temperature and the intake temperature and select a corresponding stop mode according to whether the throttle will be in the icing condition. Specifically, the stop mode selection module 20 determines whether the throttle will be in the icing condition by determining whether a coordinate point composed of the ambient temperature as the abscissa and the intake temperature as the ordinate is located on the icing region or the icing curve. If yes, the throttle will be in the icing condition, and the second stop mode is selected. If no, the throttle will not be in the icing condition, and the first stop mode is selected.

[0068] The stop control module 30 is configured to control engine stop according to the corresponding stop mode. Specifically, the stop control module 30 is configured to control engine stop according to the first stop mode or the second stop mode.

[0069] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional units and modules is exemplified, and in actual applications, the above functions can be completed by different functional units or modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the above-described functions.

[0070] The present application also provides a vehicle including a vehicle controller configured to perform the steps of the extended-range vehicle stop method described in the above embodiment.

[0071] The application provides a range extending vehicle parking method, system and vehicle, under the premise of not increasing the cost of other components, the application provides a range extending vehicle parking strategy for preventing throttle icing, whether parking is possible is judged according to the comparison of the current engine intake temperature, ambient temperature and icing condition, so as to prevent the problem that the throttle icing cannot normally operate due to the throttle icing, and the engine starting is difficult or even fails, the effect of preventing the throttle icing of the range extending vehicle with EGR technology after parking at low temperature is realized, and the ordinary throttle is used to replace the throttle with heating function, and the vehicle cost is saved.

[0072] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

[0073] In addition to the technical features described in the specification, the remaining technical features are known to those skilled in the art, and in order to highlight the innovative features of the present application, the remaining technical features will not be described here.

Claims

1. A method for stopping a range-extended vehicle, characterized in that, include: Receive engine shutdown request; The ambient temperature and intake air temperature are obtained based on the engine shutdown request, and the throttle valve of the vehicle will be frozen based on the ambient temperature and intake air temperature in order to select the corresponding shutdown mode. When the first shutdown mode is selected, the engine will be shut down directly. When the second shutdown mode is selected, the intake air temperature is reduced until it reaches a non-icing condition, and then the engine is shut down.

2. The method for stopping a range-extended vehicle according to claim 1, characterized in that, The step of determining whether the throttle valve will freeze based on the ambient temperature and the intake air temperature, and selecting the corresponding shutdown mode, includes: Based on the preset throttle body icing zone table, determine whether the ambient temperature and the intake air temperature are located within the icing zone of the throttle body icing zone table; If so, the throttle valve will freeze, and the second shutdown mode will be selected; If not, the throttle valve will not freeze, and the first shutdown mode will be selected.

3. The method for stopping a range-extended vehicle according to claim 2, characterized in that, The throttle body icing zone table was obtained through the following steps: A throttle body icing test is conducted on the vehicle to obtain a throttle body icing curve. The area above the icing curve is the icing area, and the area below the icing curve is the non-icing area.

4. The method for stopping a range-extended vehicle according to claim 1, characterized in that, The step of obtaining the ambient temperature and intake air temperature according to the engine shutdown request, and determining whether the throttle valve will freeze based on the ambient temperature and intake air temperature, in order to select the corresponding shutdown mode includes: The ambient temperature is obtained based on the engine shutdown request, and it is determined whether the ambient temperature is less than a preset threshold. If not, select the first shutdown mode; If so, then obtain the intake air temperature; Based on the ambient temperature and the intake air temperature, determine whether the throttle valve will freeze; If not, select the first shutdown mode; If so, select the second shutdown mode.

5. The method for stopping a range-extended vehicle according to claim 1, characterized in that, The steps for selecting the first shutdown mode and controlling the engine to shut down directly include: When the first shutdown mode is selected, a shutdown command is sent directly to the engine controller, and the engine controller controls the engine to shut down according to the shutdown command.

6. The method for stopping a range-extended vehicle according to claim 1, characterized in that, The steps of selecting the second shutdown mode, controlling the reduction of the intake air temperature until a non-icing condition is reached, and then controlling the engine to shut down include: When the second shutdown mode is selected, a low-power generator command is sent to the engine controller. The engine controller controls the engine to reduce its power according to the low-power generator command to reduce the intake air temperature until a non-icing condition is reached. Then, a shutdown command is sent to the engine controller, and the engine controller controls the engine to shut down according to the shutdown command.

7. The method for stopping a range-extended vehicle according to claim 6, characterized in that, Also includes: The throttle opening is reduced according to the low-power generator command.

8. The method for stopping a range-extended vehicle according to claim 6, characterized in that, The step of controlling the engine to shut down after selecting the second shutdown mode and controlling the reduction of the intake air temperature until a non-icing condition is reached further includes: When the second shutdown mode is selected, a cooling command is sent to the engine controller. The engine controller controls the fan in the exhaust gas recirculation system to start according to the cooling command to reduce the intake air temperature until it reaches a non-icing condition, and then controls the engine to shut down.

9. A range-extended vehicle shutdown system for preventing throttle body icing, characterized in that, include: The information acquisition module is used to receive engine shutdown requests; The shutdown mode selection module is used to obtain the ambient temperature and intake air temperature according to the engine shutdown request, and determine whether the throttle valve of the vehicle will freeze based on the ambient temperature and intake air temperature, and select the corresponding shutdown mode based on whether the throttle valve will freeze. The shutdown control module is used to control the engine to shut down according to the corresponding shutdown mode.

10. A vehicle, characterized in that, It includes a vehicle controller, which is used to perform the steps of implementing the range-extended vehicle shutdown method as described in any one of claims 1 to 8.

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