Recovery method and device for restraining starting of engine of hybrid vehicle

Abstract

The invention provides a recovery method and device for restraining starting of an engine of a hybrid vehicle. When the hybrid vehicle in the high-voltage power-on state is in the start restraining mode due to oil shortage, the start mode of the engine is automatically recovered in time by automatically recognizing the oil supplementing amount in the oil tank during oiling, the hybrid vehicle can recover the hybrid drive mode without power-off and flameout, the intelligence of the hybrid vehicle is improved, and the safety of the hybrid vehicle is improved. And the use habit of a user on the hybrid vehicle is met.

Description

Technical Field

[0001] The present application relates to the technical field of hybrid vehicle starting, and in particular to a method, device, medium and electronic device for recovering a hybrid vehicle engine from inhibited starting. Background Art

[0002] At present, hybrid vehicles can be powered by either oil or electricity, and there is no range anxiety, which makes them more and more popular among users. At the same time, people are increasingly pursuing faster and more convenient travel scenarios.

[0003] However, when the hybrid vehicle is in the normal high-voltage power-on state and meets the conditions for starting the engine, but the fuel is insufficient at this time, the PCU detects the fault of "P1 motor failed to start the engine" and cannot start the engine normally. It can only drive to the gas station in pure electric mode to refuel. If the entire vehicle is not powered on and off, the fault cannot be reset and the engine will be inhibited from starting. As a result, the hybrid vehicle cannot start the engine normally after refueling and can only drive in pure electric mode, which makes the hybrid vehicle lose its hybrid advantages until the battery is exhausted.

[0004] Therefore, the present application provides a method for recovering a hybrid vehicle engine from inhibited start-up to solve the above technical problems. Summary of the invention

[0005] The purpose of this application is to provide a method, device, medium and electronic device for recovering the engine start inhibition of a hybrid vehicle, which can solve at least one of the technical problems mentioned above. The specific solution is as follows:

[0006] According to a specific embodiment of the present application, in a first aspect, the present application provides a method for recovering a hybrid vehicle engine from inhibited start, comprising:

[0007] When the engine of the hybrid vehicle is in the inhibited start mode, the hybrid vehicle is in a high voltage powered state, and the fuel tank of the hybrid vehicle is in a fuel shortage state, detecting a fuel tank door unlocking request signal and a fuel tank fuel percentage value of the hybrid vehicle;

[0008] When a fuel tank door unlocking request signal of the hybrid vehicle is received, a first percentage value and a second percentage value of the fuel tank fuel level are obtained, wherein the first percentage value refers to the fuel tank fuel level percentage value before the fuel tank door unlocking request signal is received, and the second percentage value refers to the fuel tank fuel level percentage value after the fuel tank door unlocking request signal is received;

[0009] When the difference between the second percentage value and the first percentage value is greater than or equal to a preset rising percentage threshold, and the engine only has fault information associated with the inhibited start mode, the start mode of the engine is started.

[0010] Optionally, when the engine of the hybrid vehicle is in the inhibited start mode and the hybrid vehicle is in the high-voltage powered state, before detecting the fuel tank door unlocking request signal and the fuel tank fuel percentage value of the hybrid vehicle, the method further includes:

[0011] When the hybrid vehicle is in a high voltage powered state and the engine of the hybrid vehicle is in a start mode, detecting engine fault information associated with the start inhibition mode;

[0012] When it is detected that the hybrid vehicle does not have engine fault information associated with the inhibited start mode and the fuel tank of the hybrid vehicle is in a fuel shortage state, detecting the number of consecutive failures of the P1 motor to repeatedly start the engine;

[0013] When it is detected that the number of consecutive failures of the P1 motor to repeatedly start the engine is greater than or equal to a preset start failure threshold, the engine's inhibited start mode is turned on.

[0014] Optionally, when the hybrid vehicle is in a high voltage powered state and the engine of the hybrid vehicle is in a starting mode, after detecting the engine fault information associated with the inhibited start mode, the method further includes:

[0015] When failure information of the engine associated with the inhibited start mode is detected, the inhibited start mode of the engine is started.

[0016] Optionally, the method further includes:

[0017] When the inhibited start mode of the engine is turned on, an engine fault is marked, and the driving mode of the hybrid vehicle is switched from the engine driving mode to the pure electric driving mode.

[0018] Optionally, the method further includes:

[0019] When the engine's inhibited start mode is turned on and the hybrid vehicle is traveling in a pure electric drive mode, when it is detected that the state of charge value of the power battery of the hybrid vehicle is less than or equal to a preset state of charge threshold, the maximum speed of the hybrid vehicle is limited to within a preset speed limit range.

[0020] Optionally, after starting the start mode of the engine, the method further includes:

[0021] When the number of consecutive successful starts of the engine is greater than or equal to a preset successful start threshold, the engine fault mark is removed.

[0022] Optionally, after starting the start mode of the engine, the method further includes:

[0023] When the hybrid vehicle enters the low-voltage power-on state again, the engine fault mark is removed.

[0024] According to a specific embodiment of the present application, in a second aspect, the present application provides a hybrid vehicle engine start inhibition recovery device, comprising:

[0025] a detection unit, configured to detect a fuel tank door unlocking request signal and a fuel tank fuel level percentage value of the hybrid vehicle when the engine of the hybrid vehicle is in a start inhibition mode, the hybrid vehicle is in a high voltage powered state, and the fuel tank of the hybrid vehicle is in a fuel shortage state;

[0026] an acquiring unit, configured to acquire a first percentage value and a second percentage value of the fuel tank fuel level when receiving a fuel tank door unlocking request signal of the hybrid vehicle, wherein the first percentage value refers to the fuel tank fuel level percentage value before receiving the fuel tank door unlocking request signal, and the second percentage value refers to the fuel tank fuel level percentage value after receiving the fuel tank door unlocking request signal;

[0027] The start-up unit is used to start the start-up mode of the engine when the difference between the second percentage value and the first percentage value is greater than or equal to a preset rising percentage threshold and the engine only has fault information associated with the inhibited start-up mode.

[0028] Optionally, the device further comprises a first suppression unit;

[0029] The first suppression unit comprises:

[0030] a first detection subunit, configured to detect engine fault information associated with the inhibited start mode before detecting a fuel tank door unlock request signal and a fuel tank fuel volume percentage value of the hybrid vehicle when the engine of the hybrid vehicle is in an inhibited start mode and the hybrid vehicle is in a high-voltage powered-on state;

[0031] a second detection subunit, configured to detect the number of consecutive failures of the P1 motor to repeatedly start the engine when it is detected that the hybrid vehicle does not have fault information of the engine associated with the inhibited start mode and the fuel tank of the hybrid vehicle is in a fuel shortage state;

[0032] The first inhibition subunit is used to start the inhibition start mode of the engine when it is detected that the number of consecutive failures of the P1 motor to repeatedly start the engine is greater than or equal to a preset start failure threshold.

[0033] Optionally, the first suppression unit includes:

[0034] The second inhibition subunit is used for, when the hybrid vehicle is in a high-voltage power-on state and the engine of the hybrid vehicle is in a starting mode, detecting fault information of the engine associated with the inhibited start mode, and then starting the inhibited start mode of the engine when the fault information of the engine associated with the inhibited start mode is detected.

[0035] Optionally, the device further comprises:

[0036] The marking unit is used to mark an engine fault when the inhibited start mode of the engine is turned on, and switch the driving mode of the hybrid vehicle from the engine driving mode to the pure electric driving mode.

[0037] Optionally, the device further comprises:

[0038] A speed limiting unit is used to limit the maximum speed of the hybrid vehicle within a preset speed limit range when the engine's inhibited start mode is turned on and the hybrid vehicle is traveling in a pure electric drive mode and when it is detected that the state of charge value of the power battery of the hybrid vehicle is less than or equal to a preset state of charge threshold.

[0039] Optionally, the device further includes:

[0040] The first release unit is used to release the engine fault mark after the start mode of the engine is turned on when the number of consecutive successful starts of the engine is greater than or equal to a preset successful start threshold.

[0041] Optionally, the device further includes:

[0042] The second release unit is used to release the engine fault mark when the hybrid vehicle enters the low-voltage power-on state again after the start-up mode of the engine is turned on.

[0043] According to a specific implementation of the present application, in a third aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, and when the program is executed by a processor, the method for recovering a hybrid vehicle engine from inhibited start-up as described in any one of the above items is implemented.

[0044] According to the specific implementation of the present application, in a fourth aspect, the present application provides an electronic device, comprising: one or more processors; a storage device for storing one or more programs, when the one or more programs are executed by the one or more processors, the one or more processors implement the recovery method for inhibiting the start of a hybrid vehicle engine as described in any of the above items.

[0045] Compared with the prior art, the above solution of the embodiment of the present application has at least the following beneficial effects:

[0046] The present application provides a method, device, medium and electronic device for recovering a hybrid vehicle engine from inhibited start. The method includes: when the engine of the hybrid vehicle is in an inhibited start mode, the hybrid vehicle is in a high-voltage power-on state, and the fuel tank of the hybrid vehicle is in an oil-deficient state, detecting a fuel tank door unlock request signal and a fuel tank oil volume percentage value of the hybrid vehicle; when the fuel tank door unlock request signal of the hybrid vehicle is received, obtaining a first percentage value and a second percentage value of the fuel tank oil volume, wherein the first percentage value refers to the fuel tank oil volume percentage value before receiving the fuel tank door unlock request signal, and the second percentage value refers to the fuel tank oil volume percentage value after receiving the fuel tank door unlock request signal; when the difference between the second percentage value and the first percentage value is greater than or equal to a preset rising percentage threshold, and the engine only has fault information associated with the inhibited start mode, starting the engine start mode. When a hybrid vehicle in a high-voltage powered state is in an inhibited start mode due to lack of oil, the system can automatically restore the start mode of the engine in a timely manner by autonomously identifying the amount of oil added in the tank during refueling. The hybrid vehicle can be restored to the hybrid drive mode without the need to power off or shut down the engine, thereby improving the intelligence of the hybrid vehicle and satisfying the user's usage habits of the hybrid vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A flow chart showing a method for restoring a hybrid vehicle engine from inhibited start according to an embodiment of the present application is shown;

[0048] Figure 2 A unit block diagram of a hybrid vehicle engine start inhibition recovery device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0050] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0051] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0052] It should be understood that although the terms first, second, third, etc. may be used to describe in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0053] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0054] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0055] It should be particularly noted that any symbols and / or numbers in the specification that are not marked in the accompanying drawings are not drawing marks.

[0056] The optional embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0057] The embodiment provided in the present application is an embodiment of a recovery method for inhibiting the start of a hybrid vehicle engine.

[0058] Combine the following Figure 1 The embodiments of the present application are described in detail.

[0059] Step S101, when the engine of the hybrid vehicle is in the inhibited start mode, the hybrid vehicle is in a high-voltage powered state, and the fuel tank of the hybrid vehicle is in a fuel shortage state, detecting a fuel tank door unlocking request signal and a fuel tank fuel percentage value of the hybrid vehicle.

[0060] A hybrid vehicle, also known as a hybrid power vehicle (full name in English: Hybrid Vehicle), refers to a vehicle whose vehicle drive system is composed of two or more single drive systems that can operate simultaneously. The vehicle's driving power is provided by a single drive system individually or jointly according to the actual vehicle driving state.

[0061] The hybrid vehicle described in the embodiment of the present application refers to a hybrid electric vehicle (HEV), which uses a traditional engine (diesel engine or gasoline engine) and an electric motor as power sources. A hybrid vehicle has three driving modes: engine driving mode, pure electric driving mode, and hybrid driving mode.

[0062] The engine driving mode means that the hybrid vehicle is driven solely by the engine.

[0063] Pure electric driving mode means that the hybrid vehicle is driven solely by the electric motor.

[0064] Hybrid driving mode means that the engine and electric motor work together to drive the hybrid vehicle.

[0065] The start inhibition mode prohibits the engine from being used as a power source to drive the hybrid vehicle.

[0066] The power-on state of a hybrid vehicle includes a low-voltage power-on state and a high-voltage power-on state. The low-voltage power-on state is used to wake up the low-voltage system (12V system) and provide power to the control unit of the high-voltage system. The high-voltage power-on state closes the high-voltage relay and connects various high-voltage loads.

[0067] The engine of the hybrid vehicle is in the inhibited start mode, the hybrid vehicle is in the high voltage power-on state, and the fuel tank of the hybrid vehicle is in the oil-deficient state. It can be understood that the hybrid vehicle is in the starting state, the engine is prohibited from being used as a power source to drive the hybrid vehicle, and the fuel tank alarm is triggered. That is, the engine is in the inhibited start mode because the fuel tank is in the oil-deficient state.

[0068] When the hybrid vehicle needs to refuel, a fuel tank door unlock request signal is sent out. After the vehicle receives the fuel tank door unlock request signal, it opens the fuel tank door so that refueling can be performed.

[0069] The percentage value of the fuel tank oil volume refers to the percentage value of the volume of the remaining fuel in the fuel tank to the fuel tank capacity. It is obtained by detecting the liquid level change through the sensor in the fuel tank.

[0070] In some specific embodiments, when the engine of the hybrid vehicle is in the inhibited start mode and the hybrid vehicle is in the high voltage powered state, before detecting the fuel tank door unlocking request signal and the fuel tank fuel percentage value of the hybrid vehicle, the following steps are also included:

[0071] Step S100 - 11 , when the hybrid vehicle is in a high voltage powered-on state and the engine of the hybrid vehicle is in a start mode, detecting engine fault information associated with the start inhibition mode.

[0072] The start mode allows the engine to be used as a power source to drive the hybrid vehicle.

[0073] The engine fault information associated with the inhibited start mode can be understood as a fault that can cause the engine to enter the inhibited start mode. For example, the highest level of engine faults, such as an open circuit of the oil pump relay, resulting in failure to inject oil; a short circuit of the main relay; or no oil in the oil tank. Of course, this specific embodiment is not limited to this.

[0074] Step S100 - 12 , when the engine failure information associated with the inhibited start mode is detected, the inhibited start mode of the engine is started.

[0075] This specific embodiment provides a method for starting the engine's inhibited start mode, that is, when the high-voltage relay is in a closed state and various high-voltage loads are connected, if engine fault information associated with the inhibited start mode is detected, the engine's inhibited start mode is started. When the engine enters the inhibited start mode, it cannot be started.

[0076] In some specific embodiments, when the hybrid vehicle is in a high voltage powered state and the engine of the hybrid vehicle is in a starting mode, after detecting the engine fault information associated with the inhibited start mode, the method further includes the following steps:

[0077] Step S100-21, when it is detected that the hybrid vehicle does not have engine fault information associated with the inhibited start mode and the fuel tank of the hybrid vehicle is in a fuel shortage state, the number of consecutive failures of the P1 motor to repeatedly start the engine is detected.

[0078] Step S100-22, when it is detected that the number of consecutive failures of the P1 motor to repeatedly start the engine is greater than or equal to a preset start failure threshold, the engine's inhibited start mode is turned on.

[0079] This specific embodiment provides another way to start the engine's inhibited start mode. If the engine does not have engine fault information associated with the inhibited start mode, and the fuel tank of the hybrid vehicle is in a state of lack of oil, the number of consecutive failures of the P1 motor to repeatedly start the engine is detected. If the P1 motor repeatedly starts the engine and fails for multiple consecutive times (for example, the preset start failure threshold is 3 times), the inhibited start mode of the engine is turned on. That is, the inhibited start mode of the engine is caused by the lack of oil in the fuel tank.

[0080] In some specific embodiments, the method further comprises the following steps:

[0081] Step S100-31, when the engine start inhibition mode is turned on, an engine fault is marked, and the driving mode of the hybrid vehicle is switched from the engine driving mode to the pure electric driving mode.

[0082] Mark the engine fault, that is, record the engine fault information in the memory of the vehicle system. At the same time, light up the engine fault light on the instrument panel.

[0083] If the inhibited start mode is turned on, not only will the engine fault be marked and the engine fault light on the instrument panel be turned on, but the driving mode of the hybrid vehicle will be switched from the engine driving mode to the pure electric driving mode, that is, the power battery will provide the driving power for the hybrid vehicle, ensuring that the hybrid vehicle can still be driven by the power battery when the engine fails.

[0084] Step S103, when a fuel tank door unlocking request signal of the hybrid vehicle is received, a first percentage value and a second percentage value of the fuel tank fuel level are acquired.

[0085] The first percentage value refers to the percentage value of the fuel tank fuel level before the fuel tank door unlocking request signal is received, and the second percentage value refers to the percentage value of the fuel tank fuel level after the fuel tank door unlocking request signal is received.

[0086] Only when the hybrid vehicle is refueling and the hybrid vehicle is stopped, that is, the driving speed of the hybrid vehicle is zero, can the fuel tank door unlocking request signal be obtained. When the fuel tank door unlocking request signal is received, the fuel tank door of the hybrid vehicle will be automatically unlocked. The first percentage value and the second percentage value are also obtained after the hybrid vehicle is stopped, respectively before and after the fuel tank door unlocking request signal is obtained.

[0087] Step S105, when the difference between the second percentage value and the first percentage value is greater than or equal to a preset rising percentage threshold, and the engine only has fault information associated with the inhibited start mode, start the start mode of the engine.

[0088] For example, the preset rising percentage threshold is 10%.

[0089] The engine only has fault information associated with the inhibited start mode. It can be understood that the existing engine fault leads to the generation of the inhibited start mode, and there is no fault unrelated to the inhibited start mode.

[0090] The difference between the second percentage value and the first percentage value is greater than or equal to the preset rising percentage threshold, which means that after the fuel tank is refueled, the amount of fuel in the fuel tank has met the basic amount of fuel required for normal starting of the engine, and the starting mode of the engine is automatically turned on.

[0091] In the embodiment of the present application, when a hybrid vehicle in a high-voltage powered-on state is in an inhibited start mode due to lack of oil, the engine start mode can be automatically and timely restored by autonomously identifying the amount of oil replenished in the tank during refueling. The hybrid vehicle can be restored to the hybrid drive mode without powering off or shutting down the engine, thereby improving the intelligence of the hybrid vehicle and satisfying the user's usage habits of the hybrid vehicle.

[0092] In some specific embodiments, the method further comprises the following steps:

[0093] Step S111, when the engine start inhibition mode is turned on and the hybrid vehicle is traveling in a pure electric drive mode, when it is detected that the state of charge value of the power battery of the hybrid vehicle is less than or equal to a preset state of charge threshold, the maximum speed of the hybrid vehicle is limited to within a preset speed limit range.

[0094] For example, the preset state of charge threshold is 15%, and the preset speed limit range is 0-30km / h; if the state of charge value of the power battery is less than or equal to 15%, the maximum speed of the hybrid vehicle is limited to 30km / h, and the slow speed indicator is turned on, so that the hybrid vehicle can reduce power consumption, ensure that the hybrid vehicle can travel farther, and can be refueled or charged in time.

[0095] In some other specific embodiments, after starting the start mode of the engine, the following steps are further included:

[0096] Step S111, when the number of consecutive successful starts of the engine is greater than or equal to a preset successful start threshold, the engine fault mark is removed.

[0097] For example, the preset startup success threshold is 3. If the fault light in the instrument panel is lit, the engine fault mark is removed and the fault light in the instrument panel is restored.

[0098] In some specific embodiments, after starting the start mode of the engine, the following steps are further included:

[0099] When the hybrid vehicle enters the low-voltage power-on state again, the engine fault mark is removed.

[0100] The hybrid vehicle enters the low-voltage power-on state again, that is, after the hybrid vehicle is powered off and turned off, when it is powered on again at a low voltage, if the fault light in the instrument panel is lit, the engine fault mark is removed and the fault light in the instrument panel is restored.

[0101] In an embodiment of the present application, when the engine of a hybrid vehicle is in an inhibited start mode, and the hybrid vehicle is in a high-voltage power-on state, and the fuel tank of the hybrid vehicle is in an oil-deficient state, a fuel tank door unlock request signal and a fuel tank fuel level percentage value of the hybrid vehicle are detected; when the fuel tank door unlock request signal of the hybrid vehicle is received, a first percentage value and a second percentage value of the fuel tank fuel level are obtained, wherein the first percentage value refers to the fuel tank fuel level percentage value before the fuel tank door unlock request signal is received, and the second percentage value refers to the fuel tank fuel level percentage value after the fuel tank door unlock request signal is received; when the difference between the second percentage value and the first percentage value is greater than or equal to a preset rising percentage threshold, and the engine only has fault information associated with the inhibited start mode, the start mode of the engine is started. When a hybrid vehicle in a high-voltage powered state is in an inhibited start mode due to lack of oil, the system can automatically restore the start mode of the engine in a timely manner by autonomously identifying the amount of oil added in the tank during refueling. The hybrid vehicle can be restored to the hybrid drive mode without the need to power off or shut down the engine, thereby improving the intelligence of the hybrid vehicle and satisfying the user's usage habits of the hybrid vehicle.

[0102] The present application also provides a device embodiment that is based on the above embodiment, which is used to implement the method steps described in the above embodiment. The explanation based on the same name meaning is the same as the above embodiment, and has the same technical effect as the above embodiment, which will not be repeated here.

[0103] like Figure 2 As shown, the present application provides a hybrid vehicle engine start inhibition recovery device 200, comprising:

[0104] A detection unit 201, configured to detect a fuel tank door unlocking request signal and a fuel tank fuel level percentage value of the hybrid vehicle when the engine of the hybrid vehicle is in a start inhibition mode, the hybrid vehicle is in a high voltage powered state, and the fuel tank of the hybrid vehicle is in a fuel shortage state;

[0105] an acquiring unit 203, configured to acquire a first percentage value and a second percentage value of the fuel tank fuel level when receiving a fuel tank door unlocking request signal of the hybrid vehicle, wherein the first percentage value refers to the fuel tank fuel level percentage value before receiving the fuel tank door unlocking request signal, and the second percentage value refers to the fuel tank fuel level percentage value after receiving the fuel tank door unlocking request signal;

[0106] The start unit 204 is used to start the start mode of the engine when the difference between the second percentage value and the first percentage value is greater than or equal to a preset rising percentage threshold and the engine only has fault information associated with the inhibited start mode.

[0107] Optionally, the device further comprises a first suppression unit;

[0108] The first suppression unit comprises:

[0109] a first detection subunit, configured to detect engine fault information associated with the inhibited start mode before detecting a fuel tank door unlock request signal and a fuel tank fuel volume percentage value of the hybrid vehicle when the engine of the hybrid vehicle is in an inhibited start mode and the hybrid vehicle is in a high-voltage powered-on state;

[0110] a second detection subunit, configured to detect the number of consecutive failures of the P1 motor to repeatedly start the engine when it is detected that the hybrid vehicle does not have fault information of the engine associated with the inhibited start mode and the fuel tank of the hybrid vehicle is in a fuel shortage state;

[0111] The first inhibition subunit is used to start the inhibition start mode of the engine when it is detected that the number of consecutive failures of the P1 motor to repeatedly start the engine is greater than or equal to a preset start failure threshold.

[0112] Optionally, the first suppression unit includes:

[0113] The second inhibition subunit is used for, when the hybrid vehicle is in a high-voltage power-on state and the engine of the hybrid vehicle is in a starting mode, detecting fault information of the engine associated with the inhibited start mode, and then starting the inhibited start mode of the engine when the fault information of the engine associated with the inhibited start mode is detected.

[0114] Optionally, the device further comprises:

[0115] The marking unit is used to mark an engine fault when the inhibited start mode of the engine is turned on, and switch the driving mode of the hybrid vehicle from the engine driving mode to the pure electric driving mode.

[0116] Optionally, the device further comprises:

[0117] A speed limiting unit is used to limit the maximum speed of the hybrid vehicle within a preset speed limit range when the engine's inhibited start mode is turned on and the hybrid vehicle is traveling in a pure electric drive mode and when it is detected that the state of charge value of the power battery of the hybrid vehicle is less than or equal to a preset state of charge threshold.

[0118] Optionally, the device further includes:

[0119] The first release unit is used to release the engine fault mark after the start mode of the engine is turned on when the number of consecutive successful starts of the engine is greater than or equal to a preset successful start threshold.

[0120] Optionally, the device further includes:

[0121] The second release unit is used to release the engine fault mark when the hybrid vehicle enters the low-voltage power-on state again after the start-up mode of the engine is turned on.

[0122] In an embodiment of the present application, when the engine of a hybrid vehicle is in an inhibited start mode, and the hybrid vehicle is in a high-voltage power-on state, and the fuel tank of the hybrid vehicle is in an oil-deficient state, a fuel tank door unlock request signal and a fuel tank fuel level percentage value of the hybrid vehicle are detected; when the fuel tank door unlock request signal of the hybrid vehicle is received, a first percentage value and a second percentage value of the fuel tank fuel level are obtained, wherein the first percentage value refers to the fuel tank fuel level percentage value before the fuel tank door unlock request signal is received, and the second percentage value refers to the fuel tank fuel level percentage value after the fuel tank door unlock request signal is received; when the difference between the second percentage value and the first percentage value is greater than or equal to a preset rising percentage threshold, and the engine only has fault information associated with the inhibited start mode, the start mode of the engine is started. When a hybrid vehicle in a high-voltage powered state is in an inhibited start mode due to lack of oil, the system can automatically restore the start mode of the engine in a timely manner by autonomously identifying the amount of oil added in the tank during refueling. The hybrid vehicle can be restored to the hybrid drive mode without the need to power off or shut down the engine, thereby improving the intelligence of the hybrid vehicle and satisfying the user's usage habits of the hybrid vehicle.

[0123] This embodiment provides an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method steps described in the above embodiment.

[0124] An embodiment of the present application provides a non-volatile computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions can execute the method steps described in the above embodiment.

[0125] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. For the system or device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description.

[0126] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for recovering a hybrid vehicle engine from inhibited start, characterized in that: include: When the engine of the hybrid vehicle is in the inhibited start mode, the hybrid vehicle is in a high voltage powered state, and the fuel tank of the hybrid vehicle is in a fuel shortage state, detecting a fuel tank door unlocking request signal and a fuel tank fuel percentage value of the hybrid vehicle; When a fuel tank door unlocking request signal of the hybrid vehicle is received, a first percentage value and a second percentage value of the fuel tank fuel level are obtained, wherein the first percentage value refers to the fuel tank fuel level percentage value before the fuel tank door unlocking request signal is received, and the second percentage value refers to the fuel tank fuel level percentage value after the fuel tank door unlocking request signal is received; When the difference between the second percentage value and the first percentage value is greater than or equal to a preset rising percentage threshold, and the engine only has fault information associated with the inhibited start mode, the start mode of the engine is started.

2. The method according to claim 1, characterized in that: When the engine of the hybrid vehicle is in the inhibited start mode and the hybrid vehicle is in the high-voltage powered state, before detecting the fuel tank door unlocking request signal and the fuel tank fuel volume percentage value of the hybrid vehicle, the method further includes: When the hybrid vehicle is in a high voltage powered state and the engine of the hybrid vehicle is in a start mode, detecting engine fault information associated with the start inhibition mode; When it is detected that the hybrid vehicle does not have engine fault information associated with the inhibited start mode and the fuel tank of the hybrid vehicle is in a fuel shortage state, detecting the number of consecutive failures of the P1 motor to repeatedly start the engine; When it is detected that the number of consecutive failures of the P1 motor to repeatedly start the engine is greater than or equal to a preset start failure threshold, the engine's inhibited start mode is turned on.

3. The method according to claim 2, characterized in that When the hybrid vehicle is in a high voltage powered state and the engine of the hybrid vehicle is in a starting mode, after detecting the engine fault information associated with the start inhibition mode, the method further includes: When failure information of the engine associated with the inhibited start mode is detected, the inhibited start mode of the engine is started.

4. The method according to claim 2 or 3, characterized in that: The method further comprises: When the inhibited start mode of the engine is turned on, an engine fault is marked, and the driving mode of the hybrid vehicle is switched from the engine driving mode to the pure electric driving mode.

5. The method according to claim 4, characterized in that The method further comprises: When the engine's inhibited start mode is turned on and the hybrid vehicle is traveling in a pure electric drive mode, when it is detected that the state of charge value of the power battery of the hybrid vehicle is less than or equal to a preset state of charge threshold, the maximum speed of the hybrid vehicle is limited to within a preset speed limit range.

6. The method according to claim 4, characterized in that After the engine start mode is turned on, the method further includes: When the number of consecutive successful starts of the engine is greater than or equal to a preset successful start threshold, the engine fault mark is removed.

7. The method according to claim 4, characterized in that After the engine start mode is turned on, the method further includes: When the hybrid vehicle enters the low-voltage power-on state again, the engine fault mark is removed.

8. A hybrid vehicle engine start-up inhibition recovery device, characterized in that: include: a detection unit, configured to detect a fuel tank door unlocking request signal and a fuel tank fuel level percentage value of the hybrid vehicle when the engine of the hybrid vehicle is in a start inhibition mode, the hybrid vehicle is in a high voltage powered state, and the fuel tank of the hybrid vehicle is in a fuel shortage state; an acquiring unit, configured to acquire a first percentage value and a second percentage value of the fuel tank fuel level when receiving a fuel tank door unlocking request signal of the hybrid vehicle, wherein the first percentage value refers to the fuel tank fuel level percentage value before receiving the fuel tank door unlocking request signal, and the second percentage value refers to the fuel tank fuel level percentage value after receiving the fuel tank door unlocking request signal; The start-up unit is used to start the start-up mode of the engine when the difference between the second percentage value and the first percentage value is greater than or equal to a preset rising percentage threshold and the engine only has fault information associated with the inhibited start-up mode.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

10. An electronic device, characterized in that: include: one or more processors; a storage device for storing one or more programs, When the one or more programs are executed by the one or more processors, the one or more processors implement the method as claimed in any one of claims 1 to 7.

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