CN115092116A - Vehicle power source failure processing method and device, hybrid vehicle and storage medium - Google Patents
Vehicle power source failure processing method and device, hybrid vehicle and storage medium Download PDFInfo
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- CN115092116A CN115092116A CN202210829396.5A CN202210829396A CN115092116A CN 115092116 A CN115092116 A CN 115092116A CN 202210829396 A CN202210829396 A CN 202210829396A CN 115092116 A CN115092116 A CN 115092116A
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- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/50—Control strategies for responding to system failures, e.g. for fault diagnosis, failsafe operation or limp mode
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Abstract
The invention discloses a vehicle power source failure processing method, a vehicle power source failure processing device, a hybrid electric vehicle and a storage medium, wherein the vehicle power source failure processing method comprises the following steps: dynamically acquiring component operation information sent by each power component of a vehicle, wherein the power component comprises an engine, a driving motor, a generator, a power battery and a clutch; analyzing the component operation information according to a preset fault judgment rule, and determining whether a fault signal exists in the component operation information; and if the fault signal exists, processing the fault component according to the fault signal, and performing cooperative processing on the normal component. The invention improves the coordination processing capability of the vehicle to the failure of the power source.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a vehicle power source failure processing method and device, a hybrid electric vehicle and a storage medium.
Background
For a hybrid vehicle, the hybrid vehicle generally includes a power system and a power control system, the power system includes power components such as an engine, a transmission, a motor and a battery, and the power control system detects and controls each power component to implement fault identification, fault management and fault processing, so as to ensure that the entire vehicle normally operates in a fault state.
At present, when a power component fails in the control process of a power control system, only the power component with the failure is considered to be dealt with, and the operation conditions of other power components are not considered, so that the power control effect is not ideal, and the coordination processing capability of a vehicle to the failure of a power source is insufficient. For example, an engine detection component detects the running condition of an engine, if a fault of the engine is detected, a fault signal is output to an engine control module, then the engine control module analyzes or calculates according to a detection result and a preset control program to obtain a control command for solving the fault, the control command is output to the engine, then the engine executes corresponding action according to the control command, only the fault of the vehicle engine is eliminated, and effective cooperative processing strategies cannot be adopted for other power components except the engine, such as a driving motor, a high-voltage battery and the like, so that a certain degree of vehicle running risks are caused.
Disclosure of Invention
The invention mainly aims to provide a vehicle power source failure processing method and device, a hybrid electric vehicle and a storage medium, and aims to solve the technical problem of improving the coordination processing capability of the vehicle to the failure of a power source.
In order to achieve the above object, the present invention provides a vehicle power source failure processing method, which is applied to a vehicle control unit, and comprises the following steps:
dynamically acquiring component operation information sent by each power component of a vehicle, wherein the power component comprises an engine, a driving motor, a generator, a power battery and a clutch;
analyzing the component operation information according to a preset fault judgment rule, and determining whether a fault signal exists in the component operation information;
and if the fault signal exists, processing a fault component according to the fault signal, and performing cooperative processing on a normal component, wherein the fault component is a power component with fault operation, and the normal component is a power component with normal operation.
Optionally, the step of dynamically acquiring component operation information sent by each power component of the vehicle is preceded by:
sending the current control demand information to each power component of the vehicle;
the step of dynamically acquiring the component running information sent by each power component of the vehicle comprises the following steps:
and dynamically receiving the component operation information returned by each power component of the vehicle in response to the control demand information.
Optionally, the step of processing the faulty component according to the fault signal and performing cooperative processing on the normal component includes:
determining a fault type and a fault grade corresponding to the fault signal;
determining the processing priority order of the fault component according to the fault grade, and inquiring a preset fault processing countermeasure mapping table to obtain a corresponding countermeasure of the fault type;
and when the processing priority order is reached, processing the fault component and performing cooperative processing on the normal component according to the corresponding measures.
Optionally, the step of determining the fault type and the fault level corresponding to the fault signal includes:
and outputting early warning prompt information corresponding to the fault type.
Optionally, the step of determining the fault type and the fault level corresponding to the fault signal includes:
and inquiring to obtain the fault type and the fault level corresponding to the fault signal from a preset fault definition mapping table.
Optionally, the countermeasure includes a fault handling measure taken for the faulty component and a cooperative control measure taken for the normal component, and the step of handling the faulty component and the cooperative processing for the normal component according to the countermeasure includes:
and processing the fault component according to the fault processing measure, and performing cooperative processing on the normal component according to the cooperative control measure.
Optionally, the step of obtaining the countermeasure corresponding to the fault type by querying from a preset fault handling countermeasure mapping table includes:
if the fault type is that the assembly of the engine and the assembly of the clutch fail, inquiring and obtaining the fault treatment measure for controlling the engine and the clutch to stop running from a preset fault treatment strategy mapping table, and the cooperative control measure for controlling the output torque of the driving motor to increase so as to enable the vehicle to enter a pure electric limp mode;
if the fault type is assembly failure of the driving motor, inquiring and obtaining a fault treatment measure for controlling the driving motor to stop running from a preset fault treatment strategy mapping table, and a cooperative control measure for controlling the output torque of the engine to increase so as to enable the vehicle to enter an engine limp mode;
if the fault type is assembly failure of the power battery, inquiring and obtaining a fault treatment measure from a preset fault treatment strategy mapping table, wherein the fault treatment measure is used for controlling a high-voltage relay connected in series between the power battery and the driving motor to be disconnected, and the cooperative control measure is used for controlling the output torque of the engine to be increased so as to enable the vehicle to enter an engine limp mode;
if the fault type is abnormal reduction of the power of the driving motor, inquiring and obtaining that the fault treatment measure is reduction of the output torque of the driving motor and the cooperative control measure is increase of the output torque of the engine from a preset fault treatment strategy mapping table, wherein the reduction of the output torque of the driving motor is equal to the increase of the output torque of the engine.
In addition, to achieve the above object, the present invention also provides a vehicle power source failure processing device applied to a vehicle control unit, the vehicle power source failure processing device including:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for dynamically acquiring component operation information sent by each power component of a vehicle, and the power components comprise an engine, a driving motor, a generator, a power battery and a clutch;
the determining module is used for analyzing the component operation information according to a preset fault judgment rule and determining whether a fault signal exists in the component operation information or not;
and the processing module is used for processing the fault component according to the fault signal and performing cooperative processing on the normal component if the fault signal exists, wherein the fault component is a power component which runs fault, and the normal component is a power component which runs normal.
In addition, in order to achieve the above object, the present invention further provides a hybrid vehicle, which includes a memory, a processor, and a vehicle power source failure processing program stored in the memory and operable on the processor, wherein the vehicle power source failure processing program, when executed by the processor, implements the steps of the vehicle power source failure processing method as described above.
In addition, to achieve the above object, the present invention further provides a storage medium, which is a computer-readable storage medium having a vehicle power source failure processing program stored thereon, and the vehicle power source failure processing program, when executed by a processor, implements the steps of the vehicle power source failure processing method as described above.
The invention dynamically acquires the component operation information sent by each power component of the vehicle, wherein the power component comprises an engine, a driving motor, a generator, a power battery and a clutch, analyzes the component operation information according to a preset fault judgment rule, determines whether a fault signal exists in the component operation information, processes the fault component according to the fault signal if the fault signal exists, and performs cooperative processing on a normal component, wherein the fault component is a power component with a fault in operation, and the normal component is a power component with a normal operation, thereby fully considering the influence of the fault of each power component on other power components, realizing the mutual coordination control among different power components by controlling the operation states of other components, and leading the vehicle power system to be capable of realizing the mutual coordination control among different power components under the condition that the fault exists, the whole vehicle is in a safe and stable running state, the situation that the power control effect is not ideal due to the fact that only the power component with the fault is considered to be subjected to coping processing when the power component with the fault is in fault in the control process and the running state of other power components is not considered is avoided, and the coordination processing capability of the vehicle to the failure of a power source is further improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic flow chart diagram illustrating a vehicle power source failure handling method according to a first embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram illustrating a vehicle power source failure handling method according to a second embodiment of the present invention;
FIG. 3 is a schematic view of the device module of the vehicle power source failure processing device according to the embodiment of the invention;
fig. 4 is a schematic structural diagram of a hybrid vehicle in a hardware operating environment according to an embodiment of the present invention.
The implementation, functional features and advantages of the object of the present application will be further explained with reference to the embodiments, and with reference to the accompanying drawings. Specific embodiments of the present application have been shown by way of example in the drawings and will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the recitation of an element by the phrase "comprising an … …" does not exclude the presence of additional like elements in the process, method, article, or apparatus that comprises the element, and further, where similarly-named elements, features, or elements in different embodiments of the disclosure may have the same meaning, or may have different meanings, that particular meaning should be determined by their interpretation in the embodiment or further by context with the embodiment.
It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if," as used herein, may be interpreted as "at … …" or "when … …" or "in response to a determination," depending on the context. Also, as used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, items, species, and/or groups thereof. As used herein, the terms "or," "and/or," "including at least one of the following," and the like, are to be construed as inclusive or meaning any one or any combination. For example, "includes at least one of: A. b, C "means" any of the following: a; b; c; a and B; a and C; b and C; a and B and C ", again for example," A, B or C "or" A, B and/or C "means" any of the following: a; b; c; a and B; a and C; b and C; a and B and C'. An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.
It should be understood that, although the steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, in different orders, and may be performed alternately or at least partially with respect to other steps or sub-steps of other steps.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
It should be noted that step numbers such as S10 and S20 are used herein for the purpose of more clearly and briefly describing the corresponding content, and do not constitute a substantial limitation on the sequence, and those skilled in the art may perform S20 first and then S10 in specific implementation, which should be within the scope of the present application.
It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for the convenience of description of the present application, and have no specific meaning in themselves. Thus, "module", "component" or "unit" may be used mixedly.
At present, when a power component fails in a control process of a power control system, only the power component with the failure is considered to be handled, and the operation conditions of other power components are not considered to carry out cooperative processing on other power components, so that the power control effect is not ideal, and the coordination processing capability is insufficient when a vehicle power source fails.
Based on this, referring to fig. 1, the present invention provides a vehicle power source failure processing method, in a first embodiment of the vehicle power source failure processing method, the vehicle power source failure processing method is applied to a vehicle control unit, and the vehicle power source failure processing method includes the following steps:
step S10, dynamically acquiring component operation information sent by each power component of the vehicle, wherein the power component comprises an engine, a driving motor, a generator, a power battery and a clutch;
in the present embodiment, the component operation information refers to operation states of the respective power components, such as an operation state of the engine (e.g., whether an operation rate, power, or body temperature of the engine is normal), an operation state of the driving motor (e.g., whether an operation rate, power, or body temperature of the driving motor is normal), an operation state of the generator (e.g., whether an operation rate, power, or body temperature of the generator is normal), an operation state of the power battery (e.g., whether a charging power, discharging power, or battery temperature of the power battery is normal), and an operation state of the clutch (e.g., whether a coupling state of the clutch is normal).
Step S20, analyzing the component operation information according to a preset fault judgment rule, and determining whether a fault signal exists in the component operation information;
in this embodiment, the operation states of the power components can be obtained by collecting component operation information of the power components of the vehicle, and fusion analysis is performed on the operation states of the power components according to a preset fault determination rule, so as to determine whether a fault signal exists in the component operation information. The preset fault determination rules may include fault determination rules (for example, engine state, engine fuel flow, maximum voltage of the power battery, upper limit of the rotation speed of the driving motor, and the like) of each vehicle data collection item specified in a preset national standard protocol, and may further include fault determination rules (for example, upper limit and lower limit of output power when the driving motor operates, upper limit and lower limit of output power when the engine operates, upper limit of rotation speed of the engine, and the like) which are set by a manufacturer for a vehicle in a self-defined manner. In the embodiment, on the basis of meeting the power component operation requirement specified by the existing national standard protocol, the power component operation requirement which is customized and set by a manufacturer according to the actual vehicle type configuration is combined, so that the accuracy and comprehensiveness of judging whether the fault signal exists in the component operation information are improved.
And step S30, if a fault signal exists, processing a fault component according to the fault signal, and performing cooperative processing on a normal component, wherein the fault component is a power component which runs in fault, and the normal component is a power component which runs in normal.
In this embodiment, the vehicle control unit receives component operation information sent by each power component of the vehicle, detects each power component of the vehicle power system according to the component operation information, analyzes a fault signal of each power component when detecting the fault signal, judges the influence of the fault signal on other power components, and outputs a control command to other components according to a corresponding control strategy to change the operation state of the components, so as to ensure safe and stable operation of the vehicle. For example, when the vehicle control unit receives a fault signal that the bus current of the driving motor is too high, the vehicle control unit analyzes the fault signal and outputs the fault signal to control the driving motor to stop running and control the engine to start running so as to enable the vehicle to run smoothly and safely.
In the driving process, each power component is detected through a detection component correspondingly connected with each power component, after a fault signal is detected, the detection component sends the fault signal to a vehicle control unit and an individual processing module corresponding to each power component, the individual processing module determines a corresponding fault processing strategy according to the fault signal, a control instruction corresponding to the fault processing strategy is output to the power component, meanwhile, the vehicle control unit determines a fault type corresponding to the fault signal according to the fault signal, analyzes the danger degree of the fault type based on the fault type, and then performs cooperative processing on other power components according to the danger degree to ensure safe and stable operation of the vehicle. If the danger degree is greater than the preset degree threshold value, it indicates that the other power components need to be subjected to cooperative processing so as to ensure safe and stable operation of the vehicle. For example, when a detection component correspondingly connected with the driving motor detects that a fault signal with overhigh motor temperature exists in the driving motor, an independent processing module of the driving motor outputs a control command for reducing the motor torque, and after the vehicle control unit analyzes the fault signal with overhigh motor temperature, the vehicle control unit judges that the danger degree of the vehicle control unit is greater than a preset degree threshold value, and at the moment, the control command for loading the reduced torque of the driving motor to an engine is output, so that the safe and stable operation of the vehicle is ensured.
In the embodiment, the component operation information sent by each power component of the vehicle is dynamically acquired, wherein the power component comprises an engine, a driving motor, a generator, a power battery and a clutch, the component operation information is analyzed according to a preset fault judgment rule, whether a fault signal exists in the component operation information is determined, if the fault signal exists, the fault component is processed according to the fault signal, and normal components are cooperatively processed, wherein the fault component is a power component with a fault operation, and the normal components are power components with normal operation, so that the influence of the fault of each power component on other power components is fully considered, and the mutual coordination control among different power components is realized by controlling the operation states of other components, so that the vehicle power system can realize the mutual coordination control under the condition that the fault exists, the whole vehicle is in a safe and stable running state, the situation that the power control effect is not ideal due to the fact that only the power component with the fault is considered to be subjected to coping processing when the power component with the fault is in fault in the control process and the running state of other power components is not considered is avoided, and the coordination processing capability of the vehicle to the failure of a power source is further improved.
It should be noted that the control logic of the vehicle control unit according to this embodiment can perform coordination control for both the parallel power system and the series power system, and has a relatively wide application range and relatively high portability. Specifically, the vehicle control unit should include not only an interface adapted to the parallel power system, but also a preset fault determination rule adapted to the parallel power system, and a post-processing policy corresponding to each fault signal, so that when the power control system is connected to the parallel power system, the vehicle control unit can perform coordinated processing control on other power components operating normally. Similarly, the vehicle control unit should include an interface adapted to the tandem power system, a preset fault determination rule adapted to the tandem power system, and a post-processing strategy corresponding to each fault signal.
In one possible embodiment, the step of dynamically acquiring component operation information transmitted by each power component of the vehicle is preceded by:
step A10, sending the current control demand information to each power component of the vehicle;
the step of dynamically acquiring component operation information sent by each power component of the vehicle comprises the following steps:
step A20, dynamically receiving the component operation information returned by each power component of the vehicle in response to the control demand information.
In this embodiment, the control demand information may be a control command for cooperatively controlling each power component by the vehicle control unit. For example, when the currently required operation mode of the hybrid vehicle is the parallel charging mode, the vehicle controller may transmit first control demand information to each power component to control the operating state of the engine to be the operating state, the operating state of the driving motor to be the shutdown state, the operating state of the generator to be the power generation state, the operating state of the clutch to be the closed state, and the operating state of the power battery to be the charging state, and then dynamically receive first component operation information returned by each power component of the vehicle in response to the first control demand information, where the first component operation information includes, but is not limited to, the operating state of the engine (e.g., whether the operating rate, power, or body temperature of the engine is normal), the operating state of the generator (e.g., whether the operating rate, power, or body temperature of the generator is normal), the operating state of the power battery (e.g., the charging power of the power battery, the vehicle controller may transmit the first control demand information to each power component to control the engine to control the vehicle according to the engine operation state, Whether the discharge power or the battery temperature is normal) and the running state of the clutch (for example, whether the coupling state of the clutch is normal), wherein the parallel charging mode refers to that the engine drives the hybrid electric vehicle to run alone, and simultaneously converts the redundant energy into electric energy to be stored in the power battery.
For another example, when the currently required operation mode of the hybrid vehicle is the parallel four-wheel drive mode, the vehicle control unit may send the second control requirement information to each power component to control the operating state of the engine to be the operating state, the operating state of the driving motor to be the driving state, the operating state of the generator to be the stop state, the operating state of the clutch to be the closed state, and the operating state of the power battery to be the discharging state, and then dynamically receive the second component operation information returned by each power component of the vehicle in response to the second control requirement information, where the second component operation information includes, but is not limited to, the operating state of the engine (e.g., whether the operating rate, power or body temperature of the engine is normal), the operating state of the driving motor (e.g., whether the operating rate, power or body temperature of the driving motor is normal), the operating state of the power battery (e.g., the charging power of the power battery, and the charging power of the power battery, Whether the discharge power or the battery temperature is normal) and the running state of the clutch (for example, whether the coupling state of the clutch is normal), wherein the parallel four-wheel drive mode is that the hybrid electric vehicle is powered by the power battery and the engine together to drive the hybrid electric vehicle to run.
For example, when the currently required operation mode of the hybrid vehicle is the energy recovery mode, the vehicle controller may transmit third control demand information to each power component to control the operating state of the engine to be the stopped state, the operating state of the driving motor to be the power generation state, the operating state of the generator to be the stopped state, the operating state of the clutch to be the closed state, and the operating state of the power battery to be the charging state, and then dynamically receive third component operation information returned by each power component of the vehicle in response to the third control demand information, the third component operation information including, but not limited to, the operating state of the driving motor (e.g., whether the operating rate, power, or body temperature of the driving motor is normal), the operating state of the power battery (e.g., whether the charging power, discharging power, or battery temperature of the power battery is normal), and the operating state of the clutch (e.g., whether the coupling state of the clutch is normal), the energy recovery mode is that the power of the wheels flows to the driving motor through a driving shaft between the wheels and the driving motor.
The present embodiment sends the current control demand information to each power component of the vehicle, and dynamically receives the component operation information returned by each power component of the vehicle in response to the control demand information, so as to purposefully acquire the component operation information of the power component required to be acquired in the vehicle, thereby reducing the response operation load of each power component on the control demand information and the transmission operation load of data between the power component and the vehicle control unit.
In one possible implementation manner, referring to fig. 2, as a second embodiment of the vehicle power source failure processing method, in step S30, the step of processing the failed component according to the failure signal and the step of cooperatively processing the normal component includes:
step S31, determining the fault type and fault grade corresponding to the fault signal;
as an example, in step S31, the step of determining the fault type and the fault level corresponding to the fault signal includes:
and step B10, obtaining the fault type and the fault level corresponding to the fault signal by inquiring from a preset fault definition mapping table.
Step S32, determining the processing priority order of the fault component according to the fault grade, and inquiring a corresponding countermeasure of the fault type from a preset fault processing countermeasure mapping table;
and step S33, when the processing is executed to the processing priority order, processing the fault component and performing cooperative processing on the normal component according to the countermeasure.
As an example, in step S33, the countermeasure includes a fault processing measure taken for the faulty component and a cooperative control measure taken for the normal component, and the step of processing the faulty component and performing the cooperative processing for the normal component according to the countermeasure includes:
and processing the fault component according to the fault processing measure, and performing cooperative processing on the normal component according to the cooperative control measure.
In the present embodiment, the failure type refers to a failure category of the power component, for example, the failure category is that the output power of the power battery is too low, the body temperature of the engine is too high, or the running speed of the driving motor is too high. The fault rating is used to characterize the criticality of the type of fault. Wherein, the higher the criticality degree is, the higher the fault level is, and the higher the corresponding priority order is.
In this embodiment, the vehicle controller may analyze the fault signal, partition the fault type and the fault level of the fault signal according to the preset corresponding relationship between the fault signal and the fault type and the fault level, determine the processing priority order of the faulty component according to the size of the fault level, query the corresponding measure of the fault type from the preset fault processing countermeasure mapping table, process the faulty component, and perform cooperative processing on the normal component, thereby preferentially ensuring the real-time performance of processing a part of fault tasks with a high degree of criticality under limited computational resources, improving the reliability of the vehicle controller in performing cooperative scheduling on the fault tasks, and performing the processing priority order of cooperative processing on the faulty component and the normal component through different fault levels and fault types of the power component, and further the safety and the stability of the hybrid electric vehicle in running are improved.
In a possible implementation manner, the step S31 of determining the fault type and the fault level corresponding to the fault signal includes:
and step C10, outputting early warning prompt information corresponding to the fault type.
In the embodiment, after the step of determining the fault type and the fault level corresponding to the fault signal is performed, the early warning prompt information corresponding to the fault type is output, for example, a fault indicator lamp corresponding to the fault type is turned on, and for example, a character or an image corresponding to the fault type is displayed on an instrument panel, or a fault prompt voice corresponding to the fault type is played, so that a driver is prompted that a fault corresponding to the fault type exists in a certain current power component, the driver is instructed to take further measures to prevent further deterioration of the fault, the driver can timely maintain the fault type, and further, the driving safety hazard is reduced.
Further, in the step B10, the step of obtaining the countermeasure corresponding to the fault type by querying from a preset fault handling countermeasure mapping table includes:
step D10, if the fault type is that the assembly of the engine and the assembly of the clutch both fail, inquiring from a preset fault handling countermeasure mapping table to obtain that the fault handling measures are used for controlling the engine and the clutch to stop running, and the cooperative control measures are used for controlling the output torque of the driving motor to increase so as to enable the vehicle to enter a pure electric limp-home mode;
in the embodiment, when the assembly of the engine and the assembly of the clutch fail, the output torque of the driving motor can be controlled to increase in time, so that the output torque of the driving motor can make up the loss of the output torque of the engine to a certain extent, the vehicle can be kept running stably as much as possible, the vehicle can enter a pure electric limping mode, the situation that when the engine and the clutch fail, the whole vehicle can safely limp and leave dangerous areas such as a highway and a crossroad is avoided, the vehicle enters the most reasonable limping mode, and the vehicle is controlled to run stably to the maximum extent on the premise of ensuring safety.
Step D20, if the failure type is the failure of the assembly of the driving motor, inquiring from a preset failure handling countermeasure mapping table that the failure handling measure is to control the driving motor to stop running, and the cooperative control measure is to control the output torque of the engine to increase so as to make the vehicle enter an engine limp mode;
in the embodiment, when the assemblies of the driving motors fail, the output torque of the engine can be controlled to increase in time, so that the output torque of the engine can make up for the loss of the output torque of the driving motors to a certain extent, the vehicle can be kept to run stably as much as possible, the vehicle can enter the limping mode of the engine, the situation that when the driving motors fail, the whole vehicle can safely limp and leave dangerous areas such as a highway and a crossroad is avoided, the vehicle enters the most reasonable limping mode, and the vehicle is controlled to run stably to the maximum extent on the premise of ensuring safety.
Step D30, if the failure type is assembly failure of the power battery, inquiring from a preset failure handling countermeasure mapping table that the failure handling measure is to control a high-voltage relay connected in series between the power battery and the driving motor to be disconnected, and the cooperative control measure is to control the output torque of the engine to be increased so as to enable the vehicle to enter an engine limp mode;
in the embodiment, when the assemblies of the power batteries are all failed, the high-voltage relay connected in series between the power batteries and the driving motor can be timely disconnected, the output torque of the engine is controlled to be increased, the output torque of the engine can make up the loss of the output torque of the driving motor to a certain extent, the vehicle can be kept to run stably as much as possible, the vehicle can enter the limp mode of the engine, the situation that when the failure fault of the power batteries occurs, the whole vehicle can safely limp and leave dangerous areas such as a highway and a crossroad is avoided, the vehicle enters the most reasonable limp mode, and the vehicle is controlled to run stably to the maximum extent on the premise of ensuring safety.
And step D40, if the fault type is abnormal power reduction of the driving motor, querying a preset fault handling countermeasure mapping table to obtain that the fault handling measure is reduction of the output torque of the driving motor, and the cooperative control measure is increase of the output torque of the engine, and the reduction of the output torque of the driving motor is equal to the increase of the output torque of the engine.
In this embodiment, when the power of the driving motor is abnormally reduced, the output torque of the driving motor can be timely controlled and reduced, the output torque of the engine is increased, and the reduction of the output torque of the driving motor is equal to the increase of the output torque of the engine, so that the output torque of the engine can compensate the loss of the output torque of the driving motor, the vehicle can keep stable running, the problem that when the power of the driving motor is abnormally reduced, the whole vehicle can stably run away from dangerous areas such as a highway and a crossroad is avoided, and the vehicle can be ensured to safely and stably run.
In the embodiment of the present invention, for example, through the steps D10 to D40, the faulty component is processed according to the fault processing measure, and the normal component is cooperatively processed according to the cooperative control measure, so that when any one power source fails, for example, when the power component such as an engine, a motor or a power battery fails, the whole vehicle can safely limp and drive away from dangerous areas such as a highway and an intersection. Under the condition that the critical assembly fails due to serious faults, the safe and stable running of the vehicle is ensured through a series of cooperative control measures.
In addition, referring to fig. 3, an embodiment of the present invention further provides a vehicle power source failure processing apparatus, where the vehicle power source failure processing apparatus is applied to a vehicle control unit, and the vehicle power source failure processing apparatus includes:
the system comprises an acquisition module 10, a control module and a control module, wherein the acquisition module is used for dynamically acquiring component operation information sent by each power component of a vehicle, and the power components comprise an engine, a driving motor, a generator, a power battery and a clutch;
the determining module 20 is configured to analyze the component operation information according to a preset fault determination rule, and determine whether a fault signal exists in the component operation information;
and the processing module 30 is configured to, if a fault signal exists, process a faulty component according to the fault signal, and perform cooperative processing on a normal component, where the faulty component is a power component that runs faultily, and the normal component is a power component that runs normally.
Optionally, the obtaining module 10 is further configured to:
sending the current control demand information to each power component of the vehicle;
the step of dynamically acquiring component operation information sent by each power component of the vehicle comprises the following steps:
and dynamically receiving the component operation information returned by each power component of the vehicle in response to the control demand information.
Optionally, the processing module 30 is further configured to:
determining a fault type and a fault grade corresponding to the fault signal;
determining the processing priority order of the fault component according to the fault grade, and inquiring a preset fault processing countermeasure mapping table to obtain a corresponding countermeasure of the fault type;
and when the processing priority order is reached, processing the fault component and performing cooperative processing on the normal component according to the corresponding measures.
Optionally, the processing module 30 is further configured to:
and outputting early warning prompt information corresponding to the fault type.
Optionally, the processing module 30 is further configured to:
and inquiring to obtain the fault type and the fault level corresponding to the fault signal from a preset fault definition mapping table.
Optionally, the countermeasure includes a fault handling measure taken for the faulty component and a cooperative control measure taken for the normal component, and the processing module 30 is further configured to:
and processing the fault component according to the fault processing measure, and performing cooperative processing on the normal component according to the cooperative control measure.
Optionally, the processing module 30 is further configured to:
if the fault type is that the assembly of the engine and the assembly of the clutch fail, inquiring and obtaining the fault treatment measure for controlling the engine and the clutch to stop running from a preset fault treatment strategy mapping table, and the cooperative control measure for controlling the output torque of the driving motor to increase so as to enable the vehicle to enter a pure electric limp mode;
if the fault type is that the assembly of the driving motor fails, inquiring and obtaining the fault treatment measure for controlling the driving motor to stop running and the cooperative control measure for controlling the output torque of the engine to increase from a preset fault treatment strategy mapping table so as to enable the vehicle to enter an engine limping mode;
if the fault type is assembly failure of the power battery, inquiring and obtaining a fault treatment measure from a preset fault treatment strategy mapping table, wherein the fault treatment measure is used for controlling a high-voltage relay connected in series between the power battery and the driving motor to be disconnected, and the cooperative control measure is used for controlling the output torque of the engine to be increased so as to enable the vehicle to enter an engine limp mode;
if the fault type is abnormal reduction of the power of the driving motor, inquiring and obtaining that the fault treatment measure is reduction of the output torque of the driving motor and the cooperative control measure is increase of the output torque of the engine from a preset fault treatment strategy mapping table, wherein the reduction of the output torque of the driving motor is equal to the increase of the output torque of the engine.
As shown in fig. 4, fig. 4 is a schematic structural diagram of a hybrid vehicle in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 4, the hybrid vehicle may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., a WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory such as a disk memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Optionally, the hybrid vehicle may further include a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a WiFi module, and the like. Such as light sensors, motion sensors, and other sensors. In particular, the light sensor may include an ambient light sensor and a proximity sensor. Of course, the hybrid electric vehicle may also be equipped with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again.
Those skilled in the art will appreciate that the hybrid vehicle configuration shown in fig. 4 does not constitute a limitation of a hybrid vehicle, and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.
As shown in fig. 4, a memory 1005, which is one type of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a vehicle power source failure handling program.
In the hybrid vehicle shown in fig. 4, the network interface 1004 is mainly used for connecting to a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to invoke the vehicle power source failure handling program stored in the memory 1005 and perform the following operations:
dynamically acquiring component operation information sent by each power component of a vehicle, wherein the power component comprises an engine, a driving motor, a generator, a power battery and a clutch;
analyzing the component operation information according to a preset fault judgment rule, and determining whether a fault signal exists in the component operation information;
and if the fault signal exists, processing a fault component according to the fault signal, and performing cooperative processing on a normal component, wherein the fault component is a power component with fault operation, and the normal component is a power component with normal operation.
In addition, the present invention also provides a hybrid vehicle, comprising: a memory, a processor, and a vehicle power source failure handling program stored on the memory; the processor is used for executing the vehicle power source failure processing program to realize the steps of the vehicle power source failure processing method.
The present invention also provides a storage medium that is a computer-readable storage medium storing one or more programs that are further executable by one or more processors for implementing the steps of the above-described vehicle power source failure handling method embodiments.
The specific implementation manner of the computer readable storage medium of the present invention is substantially the same as that of the above-mentioned embodiments of the vehicle power source failure processing method, and will not be described herein again.
It is to be understood that the foregoing scenarios are only examples, and do not constitute a limitation on application scenarios of the technical solutions provided in the embodiments of the present application, and the technical solutions of the present application may also be applied to other scenarios. For example, as a person having ordinary skill in the art can know, with the evolution of the system architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
The above-mentioned serial numbers of the embodiments of the present application are merely for description, and do not represent the advantages and disadvantages of the embodiments.
The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.
The units in the device in the embodiment of the application can be merged, divided and deleted according to actual needs.
In the present application, the same or similar term concepts, technical solutions and/or application scenario descriptions will be generally described only in detail at the first occurrence, and when the description is repeated later, the detailed description will not be repeated in general for brevity, and when understanding the technical solutions and the like of the present application, reference may be made to the related detailed description before the description for the same or similar term concepts, technical solutions and/or application scenario descriptions and the like which are not described in detail later.
In the present application, each embodiment is described with emphasis, and reference may be made to the description of other embodiments for parts that are not described or illustrated in any embodiment.
The technical features of the technical solution of the present application may be arbitrarily combined, and for brevity of description, all possible combinations of the technical features in the embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the scope of the present application should be considered as being described in the present application.
Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, a controlled terminal, or a network device) to execute the method of each embodiment of the present application.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optics, digital subscriber line) or wirelessly (e.g., optical, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, memory Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A vehicle power source failure processing method is characterized by being applied to a vehicle control unit and comprising the following steps:
dynamically acquiring component operation information sent by each power component of a vehicle, wherein the power component comprises an engine, a driving motor, a generator, a power battery and a clutch;
analyzing the component operation information according to a preset fault judgment rule, and determining whether a fault signal exists in the component operation information;
and if the fault signal exists, processing a fault component according to the fault signal, and performing cooperative processing on a normal component, wherein the fault component is a power component with fault operation, and the normal component is a power component with normal operation.
2. The vehicle power source failure handling method of claim 1, wherein the step of dynamically obtaining component operating information transmitted by each power component of the vehicle is preceded by:
sending the current control demand information to each power component of the vehicle;
the step of dynamically acquiring component operation information sent by each power component of the vehicle comprises the following steps:
and dynamically receiving the component operation information returned by each power component of the vehicle in response to the control demand information.
3. The vehicle power source failure processing method according to claim 1, wherein the step of processing the malfunctioning component based on the malfunction signal and the step of cooperatively processing the normal component comprises:
determining a fault type and a fault grade corresponding to the fault signal;
determining the processing priority order of the fault component according to the fault grade, and inquiring a preset fault processing countermeasure mapping table to obtain a corresponding countermeasure of the fault type;
and when the processing priority order is reached, processing the fault component and performing cooperative processing on the normal component according to the corresponding measures.
4. A vehicle power source failure handling method as set forth in claim 3 wherein the step of determining the type and level of fault to which the fault signal corresponds is followed by:
and outputting early warning prompt information corresponding to the fault type.
5. A vehicle power source failure handling method as set forth in claim 3, wherein the step of determining a fault type and a fault level to which the fault signal corresponds comprises:
and inquiring to obtain the fault type and the fault level corresponding to the fault signal from a preset fault definition mapping table.
6. A vehicle power source failure processing method according to claim 3, wherein the countermeasure includes a malfunction processing measure to be taken for the malfunctioning part and a cooperative control measure to be taken for the normal part, and the step of processing the malfunctioning part and the cooperative processing for the normal part in accordance with the countermeasure includes:
and processing the fault component according to the fault processing measure, and performing cooperative processing on the normal component according to the cooperative control measure.
7. The vehicle power source failure processing method according to claim 6, wherein the step of finding the countermeasure corresponding to the type of the failure from a preset failure processing countermeasure mapping table includes:
if the fault type is that the assembly of the engine and the assembly of the clutch fail, inquiring and obtaining the fault treatment measure for controlling the engine and the clutch to stop running from a preset fault treatment strategy mapping table, and the cooperative control measure for controlling the output torque of the driving motor to increase so as to enable the vehicle to enter a pure electric limp mode;
if the fault type is assembly failure of the driving motor, inquiring and obtaining a fault treatment measure for controlling the driving motor to stop running from a preset fault treatment strategy mapping table, and a cooperative control measure for controlling the output torque of the engine to increase so as to enable the vehicle to enter an engine limp mode;
if the fault type is assembly failure of the power battery, inquiring and obtaining a fault treatment measure from a preset fault treatment strategy mapping table, wherein the fault treatment measure is used for controlling a high-voltage relay connected in series between the power battery and the driving motor to be disconnected, and the cooperative control measure is used for controlling the output torque of the engine to be increased so as to enable the vehicle to enter an engine limp mode;
if the fault type is abnormal reduction of the power of the driving motor, inquiring and obtaining the fault treatment measure of reducing the output torque of the driving motor and the cooperative control measure of increasing the output torque of the engine from a preset fault treatment strategy mapping table, wherein the reduction amount of the output torque of the driving motor is equal to the increase amount of the output torque of the engine.
8. A vehicle power source failure processing device is applied to a vehicle control unit, and comprises:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for dynamically acquiring component operation information sent by each power component of a vehicle, and the power components comprise an engine, a driving motor, a generator, a power battery and a clutch;
the determining module is used for analyzing the component operation information according to a preset fault judgment rule and determining whether a fault signal exists in the component operation information or not;
and the processing module is used for processing a fault component according to the fault signal and carrying out cooperative processing on a normal component if the fault signal exists, wherein the fault component is a power component with fault operation, and the normal component is a power component with normal operation.
9. A hybrid vehicle, comprising: a memory, a processor, and a vehicle power source failure handling program stored on the memory and executable on the processor, the vehicle power source failure handling program when executed by the processor implementing the steps of the vehicle power source failure handling method of any one of claims 1 to 7.
10. A storage medium that is a computer-readable storage medium having a vehicle power source failure processing program stored thereon, the vehicle power source failure processing program when executed by a processor implementing the steps of the vehicle power source failure processing method according to any one of claims 1 to 7.
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| CN117239940A (en) * | 2023-11-15 | 2023-12-15 | 国能世界(北京)科技有限公司 | Magnetic capacitance energy storage chip device and electric energy management system |
| CN117239940B (en) * | 2023-11-15 | 2024-01-26 | 国能世界(北京)科技有限公司 | Magnetic capacitance energy storage chip device and electric energy management system |
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