CN113401111B - Vehicle fault post-processing method, vehicle and computer storage medium - Google Patents
Vehicle fault post-processing method, vehicle and computer storage medium Download PDFInfo
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- 239000000446 fuel Substances 0.000 claims description 16
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
- B60W50/035—Bringing the control units into a predefined state, e.g. giving priority to particular actuators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0666—Engine torque
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/083—Torque
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Human Computer Interaction (AREA)
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Abstract
The invention discloses a vehicle fault post-processing method, which comprises the following steps: when a vehicle controller of a vehicle detects that an engine of the vehicle breaks down, determining a fault type corresponding to the fault; acquiring a preset processing strategy corresponding to the fault type; acquiring a part to be regulated and a preset processing operation corresponding to a preset processing strategy from a plurality of parts of the vehicle except the engine; and controlling the part to be regulated to carry out preset processing operation. The invention also discloses a vehicle and a computer storage medium. According to the invention, when the engine fails, the vehicle controller performs post-processing operation corresponding to the failure type aiming at the components in the vehicle, so that the change of the vehicle performance is considered during the post-processing of the failure, and the vehicle performance after the engine fails is improved.
Description
Technical Field
The present invention relates to the field of vehicle fault technologies, and in particular, to a vehicle fault post-processing method, a vehicle, and a computer storage medium.
Background
When one power source of a hybrid vehicle fails, a post-processing measure for the failure is often independently performed by a controller of the power source itself. The controller of the power source usually takes the post-processing measures optimal for the power source, but the post-processing measures optimal for the power source are not necessarily optimal for the power system of the whole vehicle, so that the performance of the whole vehicle of the vehicle is poor.
The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.
Disclosure of Invention
The invention mainly aims to provide a vehicle fault post-processing method, a vehicle and a computer storage medium, aiming at improving the whole vehicle performance of the vehicle.
In order to achieve the above object, the present invention provides a vehicle failure post-processing method, including:
when a vehicle controller of a vehicle detects that an engine of the vehicle breaks down, determining a fault type corresponding to the fault;
acquiring a preset processing strategy corresponding to the fault type;
acquiring a part to be regulated and a preset processing operation corresponding to the preset processing strategy from a plurality of parts of the vehicle except the engine;
and controlling the part to be regulated to perform the preset processing operation.
Optionally, the fault type includes at least one of low fuel level, engine not being able to start, engine not being able to stop, and failure of the electric motor to pull the engine to start.
Optionally, when the fault type is that the fuel level is low, the step of controlling the component to be adjusted to perform the preset processing operation includes:
adjusting the whole vehicle torque request value of the vehicle according to the limit value of the whole vehicle torque;
and adjusting the torque of the motor of the vehicle and the torque of the engine according to the adjusted whole vehicle torque request value.
Optionally, when the fault type is that the engine cannot be started, the step of controlling the component to be adjusted to perform the preset processing operation includes:
starting a motor of the vehicle using a battery of the vehicle to drive the vehicle by the motor.
Optionally, after the step of starting the electric motor of the vehicle with the battery of the vehicle to drive the vehicle by the electric motor, the method further includes:
reducing operating power of high voltage accessories of the vehicle.
Optionally, when the fault type is that the engine cannot be stopped, the step of controlling the component to be adjusted to perform the preset processing operation includes:
disabling at least one of a control system of a preset driving mode of the vehicle, a control system of an adaptive cruise of the vehicle, and a control system of a cruise control of the vehicle.
Optionally, when the fault type is a failure in starting a motor-driven engine, the step of controlling the component to be adjusted to perform the preset processing operation includes:
starting a motor for dragging the engine to start;
and if the rotating speed value of the motor dragging the engine to be started is detected to be smaller than a preset standard rotating speed value corresponding to ignition starting and larger than a preset rotating speed threshold value, controlling an ignition switch of the vehicle to ignite so as to start the engine through ignition of the ignition switch.
Optionally, before the step of determining the fault type corresponding to the fault when the vehicle controller of the vehicle detects that the engine of the vehicle has a fault, the vehicle controller of the vehicle further includes:
starting a motor dragging the engine to start when a request for starting the engine is received;
if the rotating speed value of the motor dragging the engine to be started is detected to be smaller than the preset standard rotating speed value, and the duration time that the rotating speed value of the motor dragging the engine to be started is smaller than the preset standard rotating speed value is longer than the preset time, the engine is judged to be failed to be started, and the motor dragging the engine to be started is stopped to run;
and when the accumulated times of the engine starting failure is greater than the preset times, judging that the engine has a failure of which the failure type is the motor dragging the engine starting failure.
Further, to achieve the above object, the present invention also provides a vehicle including: the vehicle fault post-processing method comprises a memory, a vehicle controller and a vehicle fault post-processing program which is stored on the memory and can be operated on the vehicle controller, wherein the vehicle fault post-processing program realizes the steps of the vehicle fault post-processing method according to any one of the above when being executed by the vehicle controller.
Further, to achieve the above object, the present invention also provides a computer storage medium having a vehicle malfunction post-processing program stored thereon, which when executed by a processor, implements the steps of the vehicle malfunction post-processing method as described in any one of the above.
According to the vehicle fault post-processing method, the vehicle and the computer storage medium provided by the embodiment of the invention, when a vehicle controller of the vehicle detects that an engine of the vehicle has a fault, a fault type corresponding to the fault is determined; acquiring a preset processing strategy corresponding to the fault type; acquiring a part to be regulated and a preset processing operation corresponding to the preset processing strategy from a plurality of parts of the vehicle except the engine; and controlling the part to be regulated to carry out the preset processing operation. According to the invention, when the engine fails, the vehicle controller performs post-processing operation corresponding to the failure type aiming at the components in the vehicle, so that the change of the vehicle performance is considered during the post-processing of the failure, and the vehicle performance after the engine fails is improved.
Drawings
Fig. 1 is a schematic diagram of a terminal structure of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram illustrating an embodiment of a vehicle fault post-processing method of the present invention;
FIG. 3 is a schematic flow chart diagram illustrating another embodiment of a vehicle fault post-processing method according to the present invention;
FIG. 4 is a schematic flow chart diagram illustrating a method for post-processing of vehicle faults in accordance with yet another embodiment of the present invention;
FIG. 5 is a schematic flow chart diagram illustrating a method for post-processing vehicle faults in accordance with another embodiment of the present invention;
FIG. 6 is a schematic diagram of a hybrid powertrain architecture for a vehicle of the present invention.
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention provides a solution, when an engine fails, a vehicle controller performs post-processing operation corresponding to a failure type aiming at components in a vehicle, so that the change of the performance of the vehicle is considered during the post-processing of the failure, and the performance of the vehicle after the engine fails is improved.
As shown in fig. 1, fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention is a vehicle controller of a vehicle.
As shown in fig. 1, the terminal may include: a processor 1001, e.g. 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 comprise a Display screen (Display), an input unit such as keys, and the optional user interface 1003 may also comprise a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface. The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein a network communication module, a user interface module, and a post-processing program for vehicle malfunction.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend 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 call a post-processing program of the vehicle failure stored in the memory 1005, and perform the following operations:
when a vehicle controller of a vehicle detects that an engine of the vehicle breaks down, determining a fault type corresponding to the fault;
acquiring a preset processing strategy corresponding to the fault type;
acquiring a part to be regulated and a preset processing operation corresponding to the preset processing strategy from a plurality of parts of the vehicle except the engine;
and controlling the part to be regulated to perform the preset processing operation.
Further, the processor 1001 may call a post-processing program of the vehicle failure stored in the memory 1005, and also perform the following operations:
adjusting the whole vehicle torque request value of the vehicle according to the limit value of the whole vehicle torque;
and adjusting the torque of the motor of the vehicle and the torque of the engine according to the adjusted whole vehicle torque request value.
Further, the processor 1001 may call a post-processing program of the vehicle failure stored in the memory 1005, and also perform the following operations:
starting a motor of the vehicle using a battery of the vehicle to drive the vehicle by the motor.
Further, the processor 1001 may call a post-processing program of the vehicle failure stored in the memory 1005, and also perform the following operations:
reducing operating power of high voltage accessories of the vehicle.
Further, the processor 1001 may call a post-processing program of the vehicle failure stored in the memory 1005, and also perform the following operations:
disabling at least one of a control system of a preset driving mode of the vehicle, a control system of an adaptive cruise of the vehicle, and a control system of a cruise control of the vehicle.
Further, the processor 1001 may call a post-processing program of the vehicle failure stored in the memory 1005, and also perform the following operations:
starting a motor for dragging the engine to start;
and if the rotating speed value of the motor dragging the engine to be started is detected to be smaller than a preset standard rotating speed value corresponding to ignition starting and larger than a preset rotating speed threshold value, controlling an ignition switch of the vehicle to ignite so as to start the engine through ignition of the ignition switch.
Further, the processor 1001 may call a post-processing program of the vehicle failure stored in the memory 1005, and also perform the following operations:
starting a motor dragging the engine to start when a request for starting the engine is received;
if the rotating speed value of the motor dragging the engine to start is detected to be smaller than the preset standard rotating speed value, and the duration time that the rotating speed value of the motor dragging the engine to start is smaller than the preset standard rotating speed value is longer than the preset time, the engine is judged to fail to start, and the motor dragging the engine to start is stopped to run;
and when the accumulated times of the engine starting failure are larger than the preset times, judging that the engine has a fault of which the fault type is that the motor drags the engine to start.
Referring to fig. 2, in one embodiment, a vehicle fault post-processing method includes the steps of:
step S10, when a vehicle controller of a vehicle detects that an engine of the vehicle breaks down, determining a fault type corresponding to the fault;
in this embodiment, the vehicle is provided with a Controller Area Network (CAN) to communicate with a vehicle Controller of the vehicle and a control system corresponding to each component of the vehicle. In order to adjust components in the whole vehicle except for the engine, the whole vehicle control of the vehicle can be realized through a whole vehicle controller of the vehicle.
Alternatively, the vehicle control unit may receive a command from a controller of the engine itself, and may detect an operating state of the engine to detect whether the engine is malfunctioning according to the command and/or the operating state of the engine.
Alternatively, the faults that may occur to the engine are various, and the types of faults corresponding to different faults may also be different. For example, the fault type may include at least one of low fuel level, engine not being able to start, engine not being able to stop, and failure of the electric motor to pull the engine to start.
Alternatively, the vehicle of the embodiment is a hybrid vehicle that includes at least two power sources, and for example, the vehicle may include a motor drive source and an engine drive source. Alternatively, the hybrid architecture of the vehicle is shown in fig. 6, the vehicle is a front-drive hybrid vehicle with a dual-motor hybrid-hybrid + hybrid-dedicated engine, the engine 1 is directly connected with the motor 2, the motor 4 is located behind the clutch 3 and directly connected with the clutch, and is used as the power input of the transmission 6, and the hybrid architecture at least includes four operation modes:
(1): EV (Electric Vehicle, pure Electric): the motor 4 drives the vehicle to run by depending on the battery 5, at the moment, the engine 1 is stopped, and the clutch 3 is opened;
(2) serial: the motor 4 drives the vehicle by means of the power generated by the motor 2 and the electric quantity of the battery 5, at the moment, the clutch 3 is opened, the engine 1 is separated from a power transmission system of the vehicle, and the engine 1 is specially used for generating power for the motor 2.
(3) Parallel: the clutch 3 is combined, the clutch 3 directly drives the vehicle, and the motor 4 performs corresponding assistance and charging according to the running working condition of the vehicle.
(4) Degrade (failure mode): and carrying out post-processing on the fault according to a preset processing strategy when the motor 2/the motor 4/the clutch 3/the engine 1/the battery 5 are in fault.
When the vehicle works in a pure electric mode, the battery 5 supplies power, the motor 2 drives the vehicle to run, and zero-emission running can be completely realized; when the vehicle works in a series mode, the rotating speed and the load of the engine 1 are decoupled with the speed, the gear and the like, so that the engine 1 can work in an interval with excellent oil consumption and emission, the engine 1 drives the motor 2 to generate electricity, and the motor 4 drives the vehicle to run independently; when the vehicle works in a parallel mode, the engine 1 directly drives the vehicle, and efficiency loss caused by charging of the motor 2, discharging of the motor 4 and charging and discharging of a battery is reduced. The hybrid control system shown in fig. 6 can select a proper mode according to the current state of the vehicle, so as to achieve superior comprehensive performances such as oil consumption, emission, driveability, NVH (Noise, Vibration, Harshness, Noise, Vibration, Harshness) and the like.
Step S20, acquiring a preset processing strategy corresponding to the fault type;
in this embodiment, a plurality of preset processing strategies are preset for the vehicle, and different preset processing strategies correspond to different fault types, so that after a fault of a certain fault type occurs to an engine of the vehicle, the fault of the fault type can be post-processed according to the corresponding preset processing strategy, and the vehicle performance of the vehicle is improved.
Optionally, the single predetermined processing strategy includes vehicle components that the vehicle control unit needs to control, and control logic for the vehicle components. After the corresponding vehicle component is controlled according to the control logic, the preset processing operation for the vehicle component can be completed.
Step S30, acquiring a component to be regulated and a preset processing operation corresponding to the preset processing strategy from a plurality of components of the vehicle except the engine;
in this embodiment, in order to avoid poor vehicle performance caused by only adjusting a failed engine, each preset processing strategy corresponds to other components needing to be adjusted except for the engine and preset processing operations of the other components needing to be adjusted, and therefore, after the preset processing strategy is determined, the components needing to be adjusted and the preset processing operations corresponding to the preset processing strategy can be determined in a plurality of components except for the engine of the vehicle. The required adjustment component and the preset processing operation corresponding to the preset processing strategy can exist in a plurality of numbers at the same time.
Alternatively, in a vehicle, the other components besides the engine may include a transmission, a battery power supply-connected motor, high-voltage accessories, an ignition switch, and the like.
And step S40, controlling the component to be adjusted to perform the preset processing operation.
In this embodiment, the vehicle controller controls the control system where each component to be adjusted is located through the CAN bus, so that each component to be adjusted performs corresponding preset processing operation, and the post-processing operation for the engine fault is not limited to the adjustment of the engine itself, but the adjustment of the vehicle component is also considered, thereby improving the vehicle performance of the vehicle.
Optionally, the preset processing strategy may also correspond to a preset processing operation for the engine itself, and when the post-processing is performed on the engine fault, the engine itself is also controlled to perform the corresponding preset processing operation, so as to implement the integral adjustment of the vehicle.
In the technical scheme disclosed in the embodiment, when the engine fails, the vehicle controller performs the post-processing operation corresponding to the failure type on the components in the vehicle, so that the change of the performance of the vehicle is considered during the post-processing of the failure, the driving requirement of a driver is met, the performance of the vehicle is maximized when the engine fails, and the vehicle has excellent safety and robustness.
In another embodiment, as shown in fig. 3, based on the above embodiment shown in fig. 2, when the fault type is low fuel level, step S40 includes:
step S41, adjusting the requested value of the vehicle torque according to the limited value of the vehicle torque;
in the present embodiment, when the type of the failure is low in the fuel level, it indicates that the remaining operable time period of the engine is small, and therefore the remaining operable time period of the engine can be extended by limiting the vehicle speed.
Optionally, when the vehicle is limited, the engine controller sends a vehicle speed limit value to the chassis control system through the CAN bus, and the chassis control system calculates a limit value of the vehicle torque according to the vehicle speed limit and sends the limit value to the vehicle controller, so that the vehicle controller CAN correspondingly adjust a vehicle torque request value of the vehicle according to the limit value of the vehicle torque, and the limit value acts on a vehicle torque path to limit the vehicle torque request.
Optionally, before step S10, the vehicle control unit may detect whether the engine has a fault with a low fuel level. Specifically, the engine CAN detect a fuel level signal and detect whether a signal value of the fuel level signal is smaller than a preset signal value, if so, the engine CAN send the signal value to the chassis control system through the CAN bus to form a vehicle speed limit value, and the vehicle controller CAN judge that the engine has a fault type of a low fuel level when receiving a vehicle torque limit value sent by the chassis control system.
Optionally, the step of controlling the component to be adjusted by the vehicle control unit to perform the preset processing operation may further include: at least one of a Control system disabling a preset driving mode (e.g., EV, Save, Power, etc. driving mode) of a vehicle, a Control system of Adaptive Cruise Control (ACC) of a vehicle, and a Control system of constant Cruise Control (CC) of the vehicle. The vehicle control unit may also control a user interaction device of the vehicle (e.g., a dashboard of the vehicle) to output a prompt to add fuel to alert the driver as soon as fuel is added.
And step S42, adjusting the torque of the motor of the vehicle and the torque of the engine according to the adjusted request value of the torque of the whole vehicle.
In the embodiment, after the requested value of the torque of the whole vehicle is limited by the limited value of the torque of the whole vehicle, the torque coordination analysis is performed according to the adjusted requested value of the torque of the whole vehicle, so that the adjusted requested value of the torque of the whole vehicle is distributed to the torque of the motor and/or the torque of the engine of the vehicle, and the purpose of limiting the vehicle speed is achieved.
According to the technical scheme disclosed by the embodiment, when the fault type is that the fuel liquid level is low, the whole vehicle torque request of the vehicle is adjusted according to the limited value of the whole vehicle torque, and the torque of the motor of the vehicle is adjusted according to the adjusted whole vehicle torque request value, so that the vehicle speed is limited when the fuel liquid level of the engine is low, and the engine fault post-processing aiming at the fuel liquid level is realized.
In still another embodiment, as shown in fig. 4, on the basis of the embodiment shown in fig. 2, when the fault type is that the engine is not started, step S40 includes:
step S43, starting a motor of the vehicle using a battery of the vehicle to drive the vehicle by the motor.
In the embodiment, when the fault type is that the engine cannot be started, the vehicle cannot be driven by the engine, and the user has a driving requirement at the moment, so that the battery of the vehicle is adopted to start the motor of the vehicle to drive the vehicle by the motor, the driving requirement of the user is met, and when the engine cannot be started, the condition that the vehicle can only be handled by contacting a maintenance worker is avoided. Specifically, the vehicle controller controls the transmission clutch to be opened, so that the engine is separated from the whole power system, the electric quantity of the battery is detected, when the electric quantity is larger than a preset electric quantity, the electric quantity of the battery is considered to be sufficient, and the vehicle is driven to run by the motor connected with the battery.
Optionally, after step S43, the duration of the electric-only vehicle may be further increased by limiting the energy consumption of the high-voltage accessories of the vehicle, for example, the operating power of the high-voltage accessories of the vehicle may be reduced, or the high-voltage accessories may be operated with a minimum power to reduce the consumption of battery charge by the high-voltage accessories of the vehicle. Alternatively, the high-voltage accessory may include an electrical device such as an air conditioner in the vehicle.
Optionally, the step of the vehicle control unit controlling the component to be adjusted to perform the preset processing operation may further include: at least one of a control system disabling a preset driving mode (e.g., driving modes of EV, Save, Power, etc.) of a vehicle, a control system of adaptive cruise (ACC) of a vehicle, and a control system of Constant Cruise (CC) of the vehicle. The vehicle control unit may also disable the control system for the automatic parking function of the vehicle.
Alternatively, before step S10, the vehicle control unit may detect whether the engine has a failure of the type in which the engine is not startable. Specifically, the vehicle control unit may request the engine to start operation when a user has a need to start the engine, and may determine that the engine has a fault of which the type is that the engine cannot be started if the engine is not in an operating state after a period of time.
Similarly, when the type of the fault is that the engine cannot be stopped, the step of controlling the component to be adjusted to perform the preset processing operation includes: at least one of a control system disabling a preset driving mode (e.g., driving modes of EV, Save, Power, etc.) of a vehicle, a control system of adaptive cruise (ACC) of a vehicle, and a control system of Constant Cruise (CC) of the vehicle. Optionally, before step S10, the vehicle control unit may detect whether the engine has a fault of which the type is that the engine cannot be stopped. Specifically, the vehicle control unit may request the engine to be stopped when there is a need for shutting down the engine by a user, and may determine that the engine has a failure of which the type is that the engine is not stopped if the engine is still in an operating state after a certain period of time.
In the technical scheme disclosed in the embodiment, when a fault that the engine cannot be started occurs, the vehicle controller drives the vehicle to run in a pure electric mode so as to meet the driving requirements of users and improve the performance of the vehicle.
In still another embodiment, as shown in fig. 5, on the basis of the embodiment shown in fig. 2, step S40 includes:
step S44, starting a motor for dragging the engine to start;
and step S45, if the rotating speed value of the motor dragging the engine to be started is detected to be smaller than a preset standard rotating speed value corresponding to ignition starting and larger than a preset rotating speed threshold value, controlling an ignition switch of the vehicle to ignite so as to start the engine through the ignition of the ignition switch.
In this embodiment, when the failure type is a failed start of the motor-driven engine, the engine may be attempted to be started in the safe mode. Specifically, the security mode is: the method comprises the steps of starting a motor for starting a dragging engine, controlling an ignition switch of a vehicle to ignite when the rotating speed value of the motor for starting the dragging engine is smaller than a preset standard rotating speed value corresponding to ignition starting and is larger than a preset rotating speed threshold value, and starting the engine through ignition of the ignition switch, so that the engine can be ignited and started under the condition of low rotating speed.
Optionally, before step S10, the vehicle controller may detect whether the engine has a failure with a failure type of failing to start the motor-driven engine. Specifically, the vehicle control unit may start a motor for starting the engine when receiving a request for starting the engine from a user, determine that the engine fails to start if it is detected that a rotation speed value of the motor for starting the engine is less than a preset standard rotation speed value and a duration of the rotation speed value of the motor for starting the engine being less than the preset standard rotation speed value is greater than a preset duration, and stop operating the motor for starting the engine, and determine that the engine has a fault type of failure in which the motor for starting the engine fails when an accumulated number of times of the engine starting failures is greater than a preset number of times. When the engine starting failure is judged, the user can trigger the request for starting the engine to try to start the engine again, so that the accumulated times of the engine starting failure are recorded, and the engine starting failure caused by accidental reasons is avoided.
In the technical scheme disclosed in this embodiment, when the failure type is that the motor-driven engine fails to start, the motor driving the engine to start is started, and if it is detected that the rotation speed value of the motor driving the engine to start is smaller than the preset standard rotation speed value corresponding to the ignition start and larger than the preset rotation speed threshold value, the ignition switch of the vehicle is controlled to ignite so as to start the engine by ignition of the ignition switch, so that the engine is started more easily.
In addition, an embodiment of the present invention also provides a vehicle, including: the vehicle fault post-processing method comprises a memory, a vehicle controller and a vehicle fault post-processing program which is stored on the memory and can be operated on the vehicle controller, wherein the vehicle fault post-processing program realizes the steps of the vehicle fault post-processing method according to the above embodiments when being executed by the vehicle controller.
Furthermore, an embodiment of the present invention further provides a computer storage medium, where a vehicle failure post-processing program is stored on the computer storage medium, and the vehicle failure post-processing program, when executed by a processor, implements the steps of the vehicle failure post-processing method according to the above embodiments.
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 system 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 system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
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 solution of the present invention 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) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
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 (8)
1. A method of post-processing a vehicle fault, characterized by comprising the steps of:
when a vehicle controller of a vehicle detects that an engine of the vehicle breaks down, determining a fault type corresponding to the fault, wherein the fault type comprises at least one of low fuel level, non-startable engine, non-stoppable engine and failed starting of a motor-driven engine;
acquiring a preset processing strategy corresponding to the fault type;
acquiring a component to be regulated and a preset processing operation corresponding to the preset processing strategy from a plurality of components of the vehicle except the engine, wherein the component to be regulated comprises at least one of a transmission, a battery power supply, a motor connected with the battery power supply, a high-voltage accessory and an ignition switch;
controlling the part to be regulated to perform the preset processing operation;
wherein, when the fault type is that the fuel level is low, the step of controlling the component to be adjusted to perform the preset processing operation comprises:
adjusting the whole vehicle torque request value of the vehicle according to the limit value of the whole vehicle torque;
and adjusting the torque of the motor of the vehicle and the torque of the engine according to the adjusted whole vehicle torque request value so as to limit the speed of the vehicle.
2. The vehicle fault post-processing method according to claim 1, wherein when the fault type is that an engine is not started, the step of controlling the component to be adjusted to perform the preset processing operation includes:
starting a motor of the vehicle using a battery of the vehicle to drive the vehicle by the motor.
3. The vehicle fault aftertreatment method according to claim 2, wherein after the step of starting the electric motor of the vehicle with the battery of the vehicle to drive the vehicle by the electric motor, further comprising:
reducing operating power of high voltage accessories of the vehicle.
4. The vehicle malfunction aftertreatment method according to claim 1, wherein when the malfunction type is that an engine is not available for stop, the step of controlling the adjustment-required component to perform the preset processing operation includes:
disabling at least one of a control system of a preset driving mode of the vehicle, a control system of an adaptive cruise of the vehicle, and a control system of a cruise control of the vehicle.
5. The method for post-processing of vehicle faults as claimed in claim 1, wherein when the fault type is a motor-driven engine start failure, the step of controlling the component to be adjusted to perform the preset processing operation includes:
starting a motor for dragging the engine to start;
and if the rotating speed value of the motor dragging the engine to be started is detected to be smaller than a preset standard rotating speed value corresponding to ignition starting and larger than a preset rotating speed threshold value, controlling an ignition switch of the vehicle to ignite so as to start the engine through ignition of the ignition switch.
6. The method for post-processing of vehicle faults as claimed in claim 5, wherein the vehicle controller of the vehicle, when detecting that the engine of the vehicle is faulty, further comprises, before the step of determining the fault type corresponding to the fault:
starting a motor dragging the engine to start when a request for starting the engine is received;
if the rotating speed value of the motor dragging the engine to start is detected to be smaller than the preset standard rotating speed value, and the duration time that the rotating speed value of the motor dragging the engine to start is smaller than the preset standard rotating speed value is longer than the preset time, the engine is judged to fail to start, and the motor dragging the engine to start is stopped to run;
and when the accumulated times of the engine starting failure is greater than the preset times, judging that the engine has a failure of which the failure type is the motor dragging the engine starting failure.
7. A vehicle, characterized in that the vehicle comprises: memory, a vehicle control unit and a vehicle fault post-processing program stored on the memory and operable on the vehicle control unit, which when executed by the vehicle control unit implements the steps of the vehicle fault post-processing method as claimed in any one of claims 1 to 6.
8. A computer storage medium characterized in that the computer storage medium has stored thereon a vehicle malfunction post-processing program that, when executed by a processor, implements the steps of the vehicle malfunction post-processing method according to any one of claims 1 to 6.
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| JP5587689B2 (en) * | 2010-07-12 | 2014-09-10 | 日立オートモティブシステムズ株式会社 | Vehicle fault diagnosis device |
| JP5888033B2 (en) * | 2012-03-16 | 2016-03-16 | トヨタ自動車株式会社 | Control device for hybrid vehicle |
| CN107449613B (en) * | 2016-05-30 | 2019-07-16 | 上海汽车集团股份有限公司 | The detection method and device of vehicle launch failure cause |
| CN107380170B (en) * | 2017-06-12 | 2019-12-31 | 中国第一汽车股份有限公司 | Method for monitoring engine state and processing fault of hybrid vehicle |
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| CN110397511A (en) * | 2019-07-01 | 2019-11-01 | 中国第一汽车股份有限公司 | A kind of fault handling method and system |
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| CN111963287B (en) * | 2020-08-21 | 2022-04-29 | 中国重汽集团济南动力有限公司 | OBD interaction system, method and device for vehicle engine and post-processing |
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