A method and device for recovering from a suppressed start of a hybrid vehicle engine

Abstract

The application provides a method and device for recovering the inhibited starting of a hybrid vehicle engine. When the engine of a hybrid vehicle in a high-voltage power-on state is in an inhibited starting mode due to oil shortage, the amount of oil added to the oil tank is autonomously identified during oiling, and the starting mode of the engine is automatically recovered in a timely manner without power-off and engine shutdown, so that the hybrid vehicle can recover the hybrid driving mode, the intelligentization of the hybrid vehicle is improved, and the use habit of the user for the hybrid vehicle is met.

Description

Technical Field

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

[0002] Hybrid vehicles, which can be powered by either gasoline or electricity and eliminate range anxiety, are increasingly popular with users. At the same time, people are increasingly seeking faster and more convenient travel scenarios.

[0003] However, when a hybrid vehicle is powered on at normal high voltage and meets the engine start conditions, but fuel is low, the PCU detects a "P1 motor failed to start the engine" fault, preventing the engine from starting properly and forcing the vehicle to drive in pure electric mode to a gas station for refueling. If the vehicle is not powered on or off, the fault cannot be reset, and the engine start will remain inhibited. As a result, the hybrid vehicle will be unable to start properly after refueling, forcing it to drive in pure electric mode, losing its hybrid advantages until the battery is depleted.

[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 a hybrid vehicle engine from inhibited start, 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 a suppressed start mode, the hybrid vehicle is in a high-voltage powered state, and the fuel tank of the hybrid vehicle is in a fuel-deficient state, detecting a fuel tank door unlocking request signal and a fuel tank fuel level percentage value of the hybrid vehicle;

[0008] When a 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 fuel level, 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;

[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 level percentage value of the hybrid vehicle, the method further includes:

[0011] When the hybrid vehicle is in a high-voltage powered state and an 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-deficient state, detecting a 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 power-on state and the engine of the hybrid vehicle is in a start mode, after detecting engine fault information associated with the start inhibition 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 activated.

[0016] Optionally, the method further includes:

[0017] 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.

[0018] Optionally, the method further includes:

[0019] When the engine's inhibited start mode is 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 hybrid vehicle's power battery 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 engine start mode, 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 engine start mode, the method further includes:

[0023] When the hybrid vehicle enters the low-voltage power-on state again, the engine fault flag 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-up 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-deficient state;

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

[0027] The activation unit is configured to activate 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.

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

[0029] The first suppression unit comprises:

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

[0031] a second detection subunit, configured to detect a number of consecutive failures of the P1 motor to repeatedly start the engine 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-deficient state;

[0032] The first suppression subunit is configured to start the engine in a suppressed start mode 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 to detect engine fault information associated with the inhibition start mode when the hybrid vehicle is in a high-voltage power-on state and the engine of the hybrid vehicle is in a start mode. When the engine fault information associated with the inhibition start mode is detected, the inhibition start mode of the engine is started.

[0035] Optionally, the device further includes:

[0036] The marking unit is used to mark an engine fault when the engine start inhibition mode 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 includes:

[0038] a speed limiting unit, configured to, when the engine's inhibited start mode is enabled and the hybrid vehicle is traveling in a pure electric drive mode, limit the maximum speed of the hybrid vehicle to within a preset speed limit range 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 configured to release the engine fault flag when the number of consecutive successful starts of the engine is greater than or equal to a preset successful start threshold after the start mode of the engine is turned on.

[0041] Optionally, the device further includes:

[0042] The second releasing unit is configured to release the engine fault flag when the hybrid vehicle enters the low-voltage power-on state again after the engine start mode is activated.

[0043] According to a specific embodiment of the present application, in a third aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the recovery method for inhibiting the start of a hybrid vehicle engine as described in any one of the above items.

[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, which, when executed by the one or more processors, enables the one or more processors to 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, apparatus, medium, and electronic device for recovering a hybrid vehicle engine from inhibited start. The method includes: when the hybrid vehicle's engine is in an inhibited start mode, the hybrid vehicle is in a high-voltage powered state, and the hybrid vehicle's fuel tank is low on fuel, detecting a fuel tank door unlock request signal and a fuel tank fuel level percentage from the hybrid vehicle; upon receiving the hybrid vehicle's fuel tank door unlock request signal, obtaining a first and second percentage of the fuel tank fuel level, wherein the first percentage is the fuel tank fuel level percentage before receiving the fuel tank door unlock request signal, and the second percentage is the fuel tank fuel level percentage after receiving the fuel tank door unlock request signal; and when the difference between the second percentage and the first percentage is greater than or equal to a preset rising percentage threshold, and the engine only has fault information associated with the inhibited start mode, initiating 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 and timely restore the engine's start mode by autonomously identifying the amount of oil in the tank during refueling. This allows the hybrid vehicle to resume hybrid drive mode without having to power off or shut down the engine, thereby improving the intelligence of the hybrid vehicle and satisfying users' usage habits of hybrid vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A flowchart showing a method for recovering a hybrid vehicle engine from inhibited start-up according to an embodiment of the present application is shown;

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

[0049] To make the objectives, technical solutions, and advantages of this application more clear, this application will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

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

[0051] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects 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 the determination" 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 terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or device. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or device comprising the element.

[0055] It should be noted in particular 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 this application is an embodiment of a method for recovering a hybrid vehicle engine from inhibited start-up.

[0058] The following combination 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 the high-voltage powered state, and the fuel tank of the hybrid vehicle is in the fuel-deficient 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 the single drive systems individually or jointly according to the actual vehicle driving state.

[0061] The hybrid vehicle described in the embodiments of this application refers to a hybrid electric vehicle (HEV), which uses a traditional engine (diesel or gasoline) and an electric motor as its power source. A hybrid vehicle has three drive modes: engine-driven mode, pure electric-driven mode, and hybrid-driven mode.

[0062] Engine drive mode means that the hybrid vehicle is driven solely by the engine.

[0063] Pure electric drive 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 inhibited start mode prohibits the engine from being used as a power source to drive the hybrid vehicle.

[0066] A hybrid vehicle's power-on states include low-voltage and high-voltage. The low-voltage state wakes up the low-voltage system (12V system) and provides power to the high-voltage system's control unit. The high-voltage state closes the high-voltage relay, connecting various high-voltage loads.

[0067] The hybrid vehicle's engine 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 low on fuel. This means that the hybrid vehicle is in the starting state, the engine is prohibited from driving the hybrid vehicle as a power source, and the fuel tank alarm is activated. In other words, the engine is in the inhibited start mode because the fuel tank is low on fuel.

[0068] When the hybrid vehicle needs to refuel, it sends a fuel tank door unlock request signal. After receiving the fuel tank door unlock request signal, the vehicle opens the fuel tank door to enable refueling.

[0069] The fuel tank oil level percentage value refers to the percentage of the volume of the remaining fuel in the tank to the tank capacity. It is obtained by detecting the liquid level change through the sensor inside the 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 unlock request signal and the fuel tank fuel level percentage value of the hybrid vehicle, the following steps are further included:

[0071] Step S100 - 11 : when the hybrid vehicle is in a high-voltage power-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] 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 faults that can cause the engine to enter the inhibited start mode. For example, the highest level of engine faults may include an open fuel pump relay, resulting in fuel injection failure; a shorted main relay; or an empty fuel tank. Of course, this embodiment is not limited to this.

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

[0075] This embodiment provides a method for activating the engine's inhibited start mode. Specifically, when the high-voltage relay is closed 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 activated. Once 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 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-deficient 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 start inhibition mode is turned on.

[0079] This specific embodiment provides another method for activating the engine's inhibited start mode. If the engine lacks engine fault information associated with the inhibited start mode and the hybrid vehicle's fuel tank is low on fuel, the P1 motor detects the number of consecutive engine startup failures. If the P1 motor repeatedly fails to start the engine multiple times (for example, a preset start failure threshold of three times), the engine's inhibited start mode is activated. This indicates that the engine's inhibited start mode is caused by a low 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 enabled, not only will the engine fault be flagged and the engine fault light on the instrument panel illuminated, but the hybrid vehicle's driving mode will also be switched from engine-driven mode to pure electric-driven mode, with the power battery providing the hybrid vehicle's driving power. This ensures that the hybrid vehicle can still be driven by the power battery in the event of an engine failure.

[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 obtained.

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

[0086] The fuel tank door unlock request signal is only received when the hybrid vehicle is refueling and has come to a complete stop, that is, when the hybrid vehicle's speed reaches zero. Upon receiving the fuel tank door unlock request signal, the hybrid vehicle's fuel tank door is automatically unlocked. The first and second percentage values ​​are also obtained after the hybrid vehicle has come to a complete stop, before and after receiving the fuel tank door unlock request signal, respectively.

[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, starting 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 state is in an inhibited start mode due to lack of oil, the engine start mode is automatically restored in a timely manner by autonomously identifying the amount of oil added in the tank during refueling. This allows the hybrid vehicle to resume the hybrid drive mode without having 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.

[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 0-30 km / h. If the power battery's state of charge value is less than or equal to 15%, the hybrid vehicle's maximum speed is limited to 30 km / h, and the slowdown indicator is illuminated. This allows the hybrid vehicle to reduce power consumption, ensure longer mileage, and enable timely refueling or charging.

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

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

[0100] When the hybrid vehicle enters the low-voltage power-on state again, that is, after the hybrid vehicle is powered off and the engine is turned off, when it is powered on again at 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, the hybrid vehicle is in a high-voltage powered-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 initiated. 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 and timely restore the engine's start mode by autonomously identifying the amount of oil in the tank during refueling. This allows the hybrid vehicle to resume hybrid drive mode without having to power off or shut down the engine, thereby improving the intelligence of the hybrid vehicle and satisfying users' usage habits of hybrid vehicles.

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

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

[0104] a detection unit 201 for detecting 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-deficient state;

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

[0106] The activation unit 204 is configured to activate 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 includes a first suppression unit;

[0108] The first suppression unit comprises:

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

[0110] a second detection subunit, configured to detect a number of consecutive failures of the P1 motor to repeatedly start the engine 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-deficient state;

[0111] The first suppression subunit is configured to start the engine in a suppressed start mode 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 to detect engine fault information associated with the inhibition start mode when the hybrid vehicle is in a high-voltage power-on state and the engine of the hybrid vehicle is in a start mode. When the engine fault information associated with the inhibition start mode is detected, the inhibition start mode of the engine is started.

[0114] Optionally, the device further includes:

[0115] The marking unit is used to mark an engine fault when the engine start inhibition mode 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 includes:

[0117] a speed limiting unit, configured to, when the engine's inhibited start mode is enabled and the hybrid vehicle is traveling in a pure electric drive mode, limit the maximum speed of the hybrid vehicle to within a preset speed limit range 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 configured to release the engine fault flag when the number of consecutive successful starts of the engine is greater than or equal to a preset successful start threshold after the start mode of the engine is turned on.

[0120] Optionally, the device further includes:

[0121] The second releasing unit is configured to release the engine fault flag when the hybrid vehicle enters the low-voltage power-on state again after the engine start mode is activated.

[0122] In an embodiment of the present application, when the engine of a hybrid vehicle is in an inhibited start mode, the hybrid vehicle is in a high-voltage powered-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 initiated. 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 and timely restore the engine's start mode by autonomously identifying the amount of oil in the tank during refueling. This allows the hybrid vehicle to resume hybrid drive mode without having to power off or shut down the engine, thereby improving the intelligence of the hybrid vehicle and satisfying users' usage habits of hybrid vehicles.

[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 to enable the at least one processor to perform the method steps described in the above embodiment.

[0124] An embodiment of the present application provides a non-volatile computer storage medium, which stores computer-executable instructions. 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, with each embodiment focusing on its differences from other embodiments. References to the common and similar parts between the various embodiments will be sufficient. For the systems or devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, their descriptions are relatively simple; for relevant details, refer to the descriptions of the methods.

[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 a suppressed start mode, the hybrid vehicle is in a high-voltage powered state, and the fuel tank of the hybrid vehicle is in a fuel-deficient state, detecting a fuel tank door unlocking request signal and a fuel tank fuel level percentage value of the hybrid vehicle; When a 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 fuel level, 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.

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 level percentage value of the hybrid vehicle, the method further includes: When the hybrid vehicle is in a high-voltage powered state and an 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-deficient state, detecting a 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 power-on state and the engine of the hybrid vehicle is in a start mode, after detecting 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 activated.

4. The method according to claim 2 or 3, characterized in that The method further comprises: 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.

5. The method according to claim 4, characterized in that The method further comprises: When the engine's inhibited start mode is 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 hybrid vehicle's power battery 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 flag 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-deficient state; an acquiring unit, configured to acquire, upon receiving a fuel tank door unlocking request signal from the hybrid vehicle, a first percentage value and a second percentage value of the fuel tank fuel level, wherein the first percentage value refers to a fuel tank fuel level percentage value before receiving the fuel tank door unlocking request signal, and the second percentage value refers to a fuel tank fuel level percentage value after receiving the fuel tank door unlocking request signal; The activation unit is configured to activate 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.

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 according to any one of claims 1 to 7.

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