CN117234173A - Vehicle-mounted static current diagnosis method and device, storage medium and vehicle - Google Patents
Vehicle-mounted static current diagnosis method and device, storage medium and vehicle Download PDFInfo
- Publication number
- CN117234173A CN117234173A CN202210636960.1A CN202210636960A CN117234173A CN 117234173 A CN117234173 A CN 117234173A CN 202210636960 A CN202210636960 A CN 202210636960A CN 117234173 A CN117234173 A CN 117234173A
- Authority
- CN
- China
- Prior art keywords
- vehicle
- fault
- abnormal
- quiescent current
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003745 diagnosis Methods 0.000 title claims abstract description 86
- 230000003068 static effect Effects 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000002159 abnormal effect Effects 0.000 claims abstract description 66
- 230000008030 elimination Effects 0.000 claims abstract description 11
- 238000003379 elimination reaction Methods 0.000 claims abstract description 11
- 230000005856 abnormality Effects 0.000 claims description 28
- 230000005059 dormancy Effects 0.000 claims description 13
- 230000002618 waking effect Effects 0.000 claims description 7
- 238000002405 diagnostic procedure Methods 0.000 claims description 5
- 230000007958 sleep Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The application discloses a vehicle-mounted static current diagnosis method, a device, a storage medium and a vehicle, wherein the method comprises the following steps: under the condition that the occurrence of the abnormal quiescent current of the vehicle is detected, the regional controller of the vehicle is controlled to disconnect each intelligent fuse of the vehicle one by one; for each intelligent fuse, when detecting that the intelligent fuse is in a disconnected state and the vehicle has no abnormal static current, marking a line to which the intelligent fuse belongs as a fault line; and generating a third diagnosis result based on the fault line serving as a reason for causing the abnormal static current, and sending the third diagnosis result and a fault elimination prompt to a vehicle owner. According to the method, the intelligent fuses are disconnected one by one through the control area controller, so that a fault line in the vehicle is diagnosed, compared with the prior art, the diagnosis result is not influenced by human subjective factors without human participation, and the diagnosis result is objective and accurate by taking a real result (namely whether the vehicle is abnormal in quiescent current or not) as a reference.
Description
Technical Field
The present application relates to the field of vehicle technologies, and in particular, to a vehicle-mounted quiescent current diagnosis method and apparatus, a storage medium, and a vehicle.
Background
With the development of society, vehicles are becoming more popular, and almost every family has a car. In the process of using the vehicle, the vehicle can cause the abnormal quiescent current of the whole vehicle due to the software and hardware faults of the electronic control unit (Electronic Control Unit, ECU), so that the vehicle cannot be started under the condition of serious vehicle power shortage, customer experience is seriously affected, and the reason for causing the abnormal quiescent current needs to be diagnosed.
At present, the existing vehicle-mounted static current diagnosis mode generally needs to be diagnosed by manually using a diagnosis tool (such as an annular ammeter), the manual diagnosis time is long, and the accuracy of a diagnosis result is low.
Disclosure of Invention
The application provides a vehicle-mounted static current diagnosis method, a vehicle-mounted static current diagnosis device, a storage medium and a vehicle, and aims to effectively diagnose reasons for causing abnormal static current of the vehicle.
In order to achieve the above object, the present application provides the following technical solutions:
a vehicle-mounted static current diagnosis method is applied to a central domain controller of a vehicle and comprises the following steps:
controlling a zone controller of the vehicle to disconnect each intelligent fuse of the vehicle one by one under the condition that the vehicle is detected to have abnormal static current;
for each intelligent fuse, when detecting that the intelligent fuse is in a disconnected state and the vehicle does not generate a static current abnormality, marking a line to which the intelligent fuse belongs as a fault line;
and generating a third diagnosis result based on the fault line serving as a reason for causing the abnormal static current, and sending the third diagnosis result and a fault elimination prompt to a vehicle owner.
Optionally, the controlling the area controller of the vehicle to individually disconnect each intelligent fuse of the vehicle when the abnormal quiescent current of the vehicle is detected includes:
controlling a storage battery sensor to acquire a static current value of the vehicle under the condition that a vehicle machine system of the vehicle is closed;
after receiving a fault signal sent by the storage battery sensor, determining that the vehicle has abnormal static current; the fault signal is: the storage battery sensor is generated under the condition that the static current value is not in a preset value range;
under the condition that the central domain controller does not have an abnormal dormancy wakeup fault code, sending a query message to an area controller of the vehicle, and receiving state information fed back by the area controller based on the query message;
and controlling the regional controller to disconnect the intelligent fuses of the vehicle one by one under the condition that the state information indicates that the regional controller is not in an awake state.
Optionally, after the fault signal sent by the storage battery sensor is received, it is determined that the vehicle has a quiescent current abnormality, the method further includes:
under the condition that the central domain controller has the abnormal dormancy wakeup fault code, a first diagnosis result is sent to a vehicle owner; wherein the first diagnostic result indicates that the cause of the quiescent current anomaly is a central domain controller fault.
Optionally, after receiving the status information fed back by the area controller based on the query message, the method further includes:
sending a second diagnosis result to the vehicle owner under the condition that the state information indicates that the regional controller is in an awake state; wherein the second diagnosis result indicates that the reason for causing the abnormal quiescent current is a regional controller fault.
Optionally, when it is detected that the intelligent fuse is in an off state and the vehicle has no abnormal quiescent current, the identifying the line to which the intelligent fuse belongs as a fault line includes:
when the intelligent fuse is in a disconnection state, controlling the central domain controller to execute dormancy operation, and waking up the central domain controller after a preset time interval;
determining that the quiescent current anomaly of the vehicle has been eliminated if it is determined that the fault signal sent by the battery sensor has not been received by the central domain controller in the awake state; the fault signal is used for indicating that the vehicle has a quiescent current abnormality;
and marking the line to which the intelligent fuse belongs as a fault line.
Optionally, the controlling the central domain controller to execute the sleep operation, and after waking up the central domain controller after a preset time interval, further includes:
and under the condition that the central domain controller in the wake-up state receives the fault signal, determining that the abnormal quiescent current of the vehicle is not eliminated, and identifying the line to which the intelligent fuse belongs as a non-fault line.
Optionally, the method further comprises:
under the condition that the lines to which the intelligent fuses belong are determined to be non-fault lines, a fourth diagnosis result is sent to the vehicle owner; wherein the fourth diagnosis result indicates that the reason for causing the abnormal quiescent current is a battery fault.
An on-vehicle quiescent current diagnostic device, comprising:
a control unit for controlling a zone controller of the vehicle to individually disconnect each intelligent fuse of the vehicle when the occurrence of the quiescent current abnormality of the vehicle is detected;
the identification unit is used for identifying the line to which the intelligent fuse belongs as a fault line when detecting that the intelligent fuse is in a disconnected state and the vehicle is not abnormal in quiescent current;
and the generating unit is used for generating a third diagnosis result based on the fault line serving as a reason for causing the abnormal quiescent current, and sending the third diagnosis result and a fault elimination prompt to a vehicle owner.
A computer-readable storage medium comprising a stored program, wherein the program performs the on-vehicle quiescent current diagnostic method.
A vehicle, comprising: a processor, a memory, and a bus; the processor is connected with the memory through the bus;
the memory is used for storing a program, and the processor is used for running the program, wherein the vehicle-mounted static current diagnosis method is executed when the program runs.
According to the technical scheme provided by the application, under the condition that the occurrence of the abnormal quiescent current of the vehicle is detected, the regional controller of the vehicle is controlled to disconnect each intelligent fuse of the vehicle one by one. And for each intelligent fuse, when the intelligent fuse is detected to be in a disconnected state and the vehicle is not abnormal in quiescent current, the line to which the intelligent fuse belongs is identified as a fault line. And generating a third diagnosis result based on the fault line serving as a reason for causing the abnormal static current, and sending the third diagnosis result and a fault elimination prompt to a vehicle owner. Compared with the prior art, the application does not need to manually participate in the diagnosis process, so that the diagnosis result is not influenced by human subjective factors, and the diagnosis result takes the actual result (namely whether the vehicle is abnormal in quiescent current) as a reference, so that the diagnosis is objective and accurate.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1a is a schematic flow chart of a vehicle-mounted static current diagnosis method according to an embodiment of the present application;
FIG. 1b is a schematic flow chart of a vehicle-mounted static current diagnosis method according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of another vehicle-mounted static current diagnosis method according to an embodiment of the present application;
fig. 3 is a schematic diagram of an architecture of a vehicle-mounted quiescent current diagnostic device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As shown in fig. 1a and fig. 1b, a flow chart of a vehicle-mounted static current diagnosis method according to an embodiment of the present application is applied to a central domain controller (CCU) of a vehicle, and includes the following steps:
s101: a battery sensor (EBS) is controlled to acquire a static current value of the vehicle when an on-board system of the vehicle is in a closed state.
The EBS is a sensor preset on the vehicle, and is known as a person skilled in the art, and is used for monitoring the static current value of the vehicle battery in real time.
S102: after receiving the fault signal sent by the EBS, determining that the vehicle has abnormal static current, and judging whether an abnormal dormancy wakeup fault code (DTC) exists in the CCU.
If the CCU itself has a DTC, S103 is executed, otherwise S104 is executed.
The fault signal is generated by the EBS under the condition that the static current value is not in a preset value range, and is used for indicating that the vehicle is abnormal in static current. In addition, when it is determined that the quiescent current value is not within the preset value range, the EBS automatically wakes up the communication network of the vehicle to transmit a fault signal to the CCU through the communication network.
S103: and sending a first diagnosis result to the vehicle owner.
Wherein the first diagnostic result indicates that the cause of the quiescent current anomaly is a CCU fault.
S104: and sending a query message to a regional controller (VIU), and receiving state information fed back by the VIU based on the query message.
After receiving the query message sent by the CCU, the VIU generates status information based on its own status.
S105: and sending a second diagnosis result to the vehicle owner under the condition that the state information indicates that the VIU is in the awakening state.
Wherein the second diagnostic result indicates that the cause of the quiescent current anomaly is a VIU fault.
S106: in the event that the status information indicates that the VIU is not in an awake state, the control VIU individually opens individual intelligent fuses (E-fuses) of the vehicle.
The functional principle of the E-fuse is common knowledge familiar to those skilled in the art, and will not be described here. In general, a vehicle is preset with a plurality of E-fuses, and if the cause of the abnormal quiescent current is not a CCU fault or a VIU fault, the abnormal quiescent current may be caused by a line fault to which a certain E-fuse belongs. For this reason, it is necessary to diagnose in particular which line is faulty.
It should be noted that, the CCU may trigger the VIU to disconnect the E-fuses shown by the test signal by sending the test signal to the VIU, so as to control the VIU to disconnect the respective E-fuses of the vehicle one by one.
In addition, because the frequencies of the circuits to which each E-fuse belongs are different, for example, some circuits are responsible for air conditioning refrigeration, the frequencies of the circuits are higher, and some circuits are responsible for intelligent driving, and the frequencies of the circuits are lower. Generally, a line with a higher frequency of use is easier to cause abnormal quiescent current, so that the VIU can be controlled to disconnect each E-fuse of the vehicle in sequence according to the order of the higher frequency of use of the line to which the E-fuse belongs, thereby finding a faulty line early and improving the diagnosis efficiency.
S107: for each E-fuse, after the E-fuse is in an off state, the CCU is controlled to execute a sleep operation and wake up after a preset time interval.
S108: in the case where it is determined that the CCU in the awake state has not received the fault signal transmitted by the EBS, it is determined that the quiescent current abnormality of the vehicle has been eliminated.
S109: and identifying the line to which the E-fuse belongs as a fault line.
Optionally, stopping supplying power to the line to which the target E-fuse belongs under the condition that it is determined that the quiescent current abnormality of the vehicle is eliminated and the number of E-fuses in the current disconnection state is larger than a preset value, and judging whether the CCU in the wake-up state can still receive fault signals sent by the EBS after the line to which the target E-fuse belongs fails; if the CCU in the wake-up state can also receive the fault signal sent by the EBS, marking the line to which the target E-fuse belongs as a non-fault line; if the CCU in the wake-up state fails to receive the fault signal sent by the EBS, the line to which the target E-fuse belongs is identified as a fault line.
The target E-fuse is: among the individual E-fuses currently in the open state, other E-fuses than the E-fuse in the faulty line.
S110: and generating a third diagnosis result based on the fault line as a reason for causing the abnormal static current, and sending the third diagnosis result and a fault elimination prompt to a vehicle owner.
Wherein, the fault elimination prompt is used for informing the vehicle owner that the fault causing the abnormal static current is eliminated.
If the fault causing the quiescent current abnormality is not resolved, the EBS continues to send a fault signal to the CCU until the quiescent current abnormality is resolved. Therefore, when the E-fuse is in the off state and it is determined that the fault signal sent by the EBS is not received after the CCU executes the preset step, the fault representing that the quiescent current abnormality is caused is solved, so that the reason for causing the quiescent current abnormality can be determined as the line fault to which the E-fuse belongs.
Generally, a controller for controlling the start of a certain function module of a vehicle is preset on a line to which an E-fuse belongs, and if the line to which the E-fuse belongs fails, the controller preset on the line to which the E-fuse belongs is represented.
S111: and under the condition that the CCU in the wake-up state receives the fault signal sent by the EBS, determining that the quiescent current abnormality of the vehicle is not eliminated, and identifying the line to which the E-fuse belongs as a non-fault line.
When the E-fuse is in an off state and the CCU in an awake state is determined to still receive the fault signal sent by the EBS, the fault which causes the abnormal quiescent current is not solved, namely the line to which the E-fuse belongs is further determined not to be faulty.
S112: and under the condition that the lines to which the E-fuses belong are determined to be non-fault lines, sending a fourth diagnosis result to the vehicle owner.
Wherein the fourth diagnosis result indicates that the reason for causing the abnormal quiescent current is a battery fault.
Optionally, in the case that the CCU in the non-awake state is determined to receive the fault signal sent by the EBS, it is determined that the quiescent current abnormality of the vehicle has been eliminated, and a fifth diagnosis result is sent to the vehicle owner. In the embodiment of the present application, the fifth diagnosis result indicates that the cause of the quiescent current abnormality is CCU sleep abnormality.
Optionally, in the case that each E-fuse is in an off state, and the CCU receives the fault signal sent by the EBS and the alarm signal sent by the ECU, a sixth diagnosis result is sent to the vehicle owner. In the embodiment of the application, the sixth diagnosis result indicates that the cause of the quiescent current abnormality is an ECU failure.
The flow shown in S101 to S112 is implemented by the CCU of the vehicle as an execution body, and the CCU may be controlled to execute the flow shown in S101 to S112 by using a functional module such as a body domain controller or a gateway of the vehicle as an execution body, so that it is ensured that an effective diagnosis of a static current abnormality of the vehicle is achieved without adding additional hardware to the vehicle, and the hardware cost is effectively reduced.
In summary, the intelligent fuses are individually disconnected through the control area controller, so that a line with faults in the vehicle is diagnosed, compared with the prior art, the diagnosis result is not influenced by human subjective factors without human participation in the diagnosis process, and the diagnosis result is objective and accurate by taking a real result (namely whether the vehicle is abnormal in quiescent current or not) as a reference.
It should be noted that S101 mentioned in the foregoing embodiment is an alternative implementation of the vehicle-mounted quiescent current diagnostic method according to the present application. In addition, S109 mentioned in the foregoing embodiment is also an alternative implementation of the on-vehicle quiescent current diagnostic method shown in the present application. For this reason, the flow shown in the above embodiment can be summarized as the method shown in fig. 2.
As shown in fig. 2, a flow chart of another vehicle-mounted static current diagnosis method according to an embodiment of the present application includes the following steps:
s201: in the case of detecting that a quiescent current abnormality occurs in the vehicle, the zone controller controlling the vehicle turns off the individual intelligent fuses of the vehicle one by one.
S202: and for each intelligent fuse, when the intelligent fuse is detected to be in a disconnected state and the vehicle is not abnormal in quiescent current, the line to which the intelligent fuse belongs is identified as a fault line.
S203: and generating a third diagnosis result based on the fault line as a reason for causing the abnormal static current, and sending the third diagnosis result and a fault elimination prompt to a vehicle owner.
In summary, the intelligent fuses are individually disconnected through the control area controller, so that a line with faults in the vehicle is diagnosed, compared with the prior art, the diagnosis result is not influenced by human subjective factors without human participation in the diagnosis process, and the diagnosis result is objective and accurate by taking a real result (namely whether the vehicle is abnormal in quiescent current or not) as a reference.
Corresponding to the vehicle-mounted static current diagnosis method provided by the embodiment of the application, the application also provides a vehicle-mounted static current diagnosis device.
As shown in fig. 3, an architecture diagram of a vehicle-mounted static current diagnostic device according to an embodiment of the present application includes:
and a control unit 100 for controlling the zone controller of the vehicle to individually disconnect the respective intelligent fuses of the vehicle in case that the occurrence of the quiescent current abnormality of the vehicle is detected.
Optionally, the control unit 100 is specifically configured to: under the condition that a vehicle machine system of the vehicle is closed, controlling a storage battery sensor to acquire a static current value of the vehicle; after receiving a fault signal sent by a storage battery sensor, determining that the vehicle has abnormal static current; the fault signal is: the storage battery sensor is generated under the condition that the static current value is not in a preset value range; under the condition that the central domain controller does not have an abnormal dormancy wakeup fault code, a query message is sent to a regional controller of a vehicle, and state information fed back by the regional controller based on the query message is received; in the case where the status information indicates that the zone controller is not in an awake state, the zone controller is controlled to individually disconnect individual intelligent fuses of the vehicle.
The control unit 100 is also configured to: under the condition that an abnormal dormancy wakeup fault code exists in the central domain controller, a first diagnosis result is sent to a vehicle owner; wherein the first diagnostic result indicates that the cause of the quiescent current anomaly is a central domain controller fault.
The control unit 100 is also configured to: under the condition that the state information indicates that the regional controller is in an awake state, a second diagnosis result is sent to the vehicle owner; wherein the second diagnostic result indicates that the cause of the quiescent current anomaly is a regional controller fault.
And the identification unit 200 is configured to identify, for each intelligent fuse, a line to which the intelligent fuse belongs as a fault line when it is detected that the intelligent fuse is in an off state and that no quiescent current abnormality occurs in the vehicle.
Optionally, the identification unit 200 is specifically configured to: when the intelligent fuse is in a disconnected state, controlling the central domain controller to execute a dormancy operation, and waking up the central domain controller after a preset time interval; under the condition that the central domain controller in the wake-up state does not receive the fault signal sent by the storage battery sensor, determining that the abnormal static current of the vehicle is eliminated; the fault signal is used for indicating that the vehicle has abnormal static current; and marking the line to which the intelligent fuse belongs as a fault line.
The identification unit 200 is further configured to: and under the condition that the central domain controller in the wake-up state receives the fault signal, determining that the abnormal quiescent current of the vehicle is not eliminated, and identifying the line to which the intelligent fuse belongs as a non-fault line.
The identification unit 200 is further configured to: under the condition that the lines to which all intelligent fuses belong are determined to be non-fault lines, a fourth diagnosis result is sent to a vehicle owner; wherein the fourth diagnosis result indicates that the reason for causing the abnormal quiescent current is a battery fault.
And a generating unit 300 for generating a third diagnosis result based on the fault line as a cause of the abnormal quiescent current, and transmitting the third diagnosis result and the fault elimination prompt to the vehicle owner.
In summary, the intelligent fuses are individually disconnected through the control area controller, so that a line with faults in the vehicle is diagnosed, compared with the prior art, the diagnosis result is not influenced by human subjective factors without human participation in the diagnosis process, and the diagnosis result is objective and accurate by taking a real result (namely whether the vehicle is abnormal in quiescent current or not) as a reference.
The application also provides a computer readable storage medium, which comprises a stored program, wherein the program executes the vehicle-mounted static current diagnosis method provided by the application.
The application also provides a vehicle comprising: a processor, a memory, and a bus. The processor is connected with the memory through a bus, the memory is used for storing a program, and the processor is used for running the program, wherein the vehicle-mounted static current diagnosis method provided by the application is executed when the program runs, and comprises the following steps:
controlling a zone controller of the vehicle to disconnect each intelligent fuse of the vehicle one by one under the condition that the vehicle is detected to have abnormal static current;
for each intelligent fuse, when detecting that the intelligent fuse is in a disconnected state and the vehicle does not generate a static current abnormality, marking a line to which the intelligent fuse belongs as a fault line;
and generating a third diagnosis result based on the fault line serving as a reason for causing the abnormal static current, and sending the third diagnosis result and a fault elimination prompt to a vehicle owner.
Specifically, on the basis of the above embodiment, the method for controlling the area controller of the vehicle to individually disconnect each intelligent fuse of the vehicle when the occurrence of the abnormal quiescent current of the vehicle is detected includes:
controlling a storage battery sensor to acquire a static current value of the vehicle under the condition that a vehicle machine system of the vehicle is closed;
after receiving a fault signal sent by the storage battery sensor, determining that the vehicle has abnormal static current; the fault signal is: the storage battery sensor is generated under the condition that the static current value is not in a preset value range;
under the condition that the central domain controller does not have an abnormal dormancy wakeup fault code, sending a query message to an area controller of the vehicle, and receiving state information fed back by the area controller based on the query message;
and controlling the regional controller to disconnect the intelligent fuses of the vehicle one by one under the condition that the state information indicates that the regional controller is not in an awake state.
Specifically, on the basis of the foregoing embodiment, after the failure signal sent by the storage battery sensor is received, it is determined that the quiescent current abnormality occurs in the vehicle, the method further includes:
under the condition that the central domain controller has the abnormal dormancy wakeup fault code, a first diagnosis result is sent to a vehicle owner; wherein the first diagnostic result indicates that the cause of the quiescent current anomaly is a central domain controller fault.
Specifically, on the basis of the foregoing embodiment, after receiving the status information fed back by the area controller based on the query packet, the method further includes:
sending a second diagnosis result to the vehicle owner under the condition that the state information indicates that the regional controller is in an awake state; wherein the second diagnosis result indicates that the reason for causing the abnormal quiescent current is a regional controller fault.
Specifically, on the basis of the foregoing embodiment, when it is detected that the intelligent fuse is in an off state and the vehicle has no abnormal quiescent current, the identifying the line to which the intelligent fuse belongs as a fault line includes:
when the intelligent fuse is in a disconnection state, controlling the central domain controller to execute dormancy operation, and waking up the central domain controller after a preset time interval;
determining that the quiescent current anomaly of the vehicle has been eliminated if it is determined that the fault signal sent by the battery sensor has not been received by the central domain controller in the awake state; the fault signal is used for indicating that the vehicle has a quiescent current abnormality;
and marking the line to which the intelligent fuse belongs as a fault line.
Specifically, on the basis of the foregoing embodiment, the controlling the central domain controller to execute the sleep operation, and after waking up the central domain controller after a preset time interval, further includes:
and under the condition that the central domain controller in the wake-up state receives the fault signal, determining that the abnormal quiescent current of the vehicle is not eliminated, and identifying the line to which the intelligent fuse belongs as a non-fault line.
Specifically, on the basis of the above embodiment, the method further includes:
under the condition that the lines to which the intelligent fuses belong are determined to be non-fault lines, a fourth diagnosis result is sent to the vehicle owner; wherein the fourth diagnosis result indicates that the reason for causing the abnormal quiescent current is a battery fault.
The functions of the methods of embodiments of the present application, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored on a computing device readable storage medium. Based on such understanding, a part of the present application that contributes to the prior art or a part of the technical solution may be embodied in the form of a software product stored in a storage medium, comprising several instructions for causing a computing device (which may be a personal computer, a server, a mobile computing device or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, so that the same or similar parts between the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An on-vehicle quiescent current diagnostic method, applied to a central domain controller of a vehicle, comprising:
controlling a zone controller of the vehicle to disconnect each intelligent fuse of the vehicle one by one under the condition that the vehicle is detected to have abnormal static current;
for each intelligent fuse, when detecting that the intelligent fuse is in a disconnected state and the vehicle does not generate a static current abnormality, marking a line to which the intelligent fuse belongs as a fault line;
and generating a third diagnosis result based on the fault line serving as a reason for causing the abnormal static current, and sending the third diagnosis result and a fault elimination prompt to a vehicle owner.
2. The method according to claim 1, wherein the controlling the zone controller of the vehicle to individually disconnect the respective intelligent fuses of the vehicle in the case where the occurrence of the quiescent current abnormality of the vehicle is detected, comprises:
controlling a storage battery sensor to acquire a static current value of the vehicle under the condition that a vehicle machine system of the vehicle is closed;
after receiving a fault signal sent by the storage battery sensor, determining that the vehicle has abnormal static current; the fault signal is: the storage battery sensor is generated under the condition that the static current value is not in a preset value range;
under the condition that the central domain controller does not have an abnormal dormancy wakeup fault code, sending a query message to an area controller of the vehicle, and receiving state information fed back by the area controller based on the query message;
and controlling the regional controller to disconnect the intelligent fuses of the vehicle one by one under the condition that the state information indicates that the regional controller is not in an awake state.
3. The method of claim 2, wherein after receiving the fault signal sent by the battery sensor, determining that the quiescent current abnormality occurs in the vehicle further comprises:
under the condition that the central domain controller has the abnormal dormancy wakeup fault code, a first diagnosis result is sent to a vehicle owner; wherein the first diagnostic result indicates that the cause of the quiescent current anomaly is a central domain controller fault.
4. The method of claim 2, wherein after receiving the status information fed back by the area controller based on the query message, further comprising:
sending a second diagnosis result to the vehicle owner under the condition that the state information indicates that the regional controller is in an awake state; wherein the second diagnosis result indicates that the reason for causing the abnormal quiescent current is a regional controller fault.
5. The method according to claim 1, wherein the identifying the line to which the intelligent fuse belongs as a faulty line in the case that the intelligent fuse is detected to be in an off state and no quiescent current abnormality occurs in the vehicle, includes:
when the intelligent fuse is in a disconnection state, controlling the central domain controller to execute dormancy operation, and waking up the central domain controller after a preset time interval;
determining that the quiescent current anomaly of the vehicle has been eliminated if it is determined that the fault signal sent by the battery sensor has not been received by the central domain controller in the awake state; the fault signal is used for indicating that the vehicle has a quiescent current abnormality;
and marking the line to which the intelligent fuse belongs as a fault line.
6. The method of claim 5, wherein the controlling the central domain controller to perform the sleep operation and after waking up the central domain controller after a predetermined time interval, further comprises:
and under the condition that the central domain controller in the wake-up state receives the fault signal, determining that the abnormal quiescent current of the vehicle is not eliminated, and identifying the line to which the intelligent fuse belongs as a non-fault line.
7. The method as recited in claim 6, further comprising:
under the condition that the lines to which the intelligent fuses belong are determined to be non-fault lines, a fourth diagnosis result is sent to the vehicle owner; wherein the fourth diagnosis result indicates that the reason for causing the abnormal quiescent current is a battery fault.
8. An on-vehicle quiescent current diagnostic device, comprising:
a control unit for controlling a zone controller of the vehicle to individually disconnect each intelligent fuse of the vehicle when the occurrence of the quiescent current abnormality of the vehicle is detected;
the identification unit is used for identifying the line to which the intelligent fuse belongs as a fault line when detecting that the intelligent fuse is in a disconnected state and the vehicle is not abnormal in quiescent current;
and the generating unit is used for generating a third diagnosis result based on the fault line serving as a reason for causing the abnormal quiescent current, and sending the third diagnosis result and a fault elimination prompt to a vehicle owner.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium includes a stored program, wherein the program performs the on-vehicle quiescent current diagnostic method of any one of claims 1 to 7.
10. A vehicle, characterized by comprising: a processor, a memory, and a bus; the processor is connected with the memory through the bus;
the memory is used for storing a program, and the processor is used for running the program, wherein the program executes the vehicle-mounted static current diagnosis method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210636960.1A CN117234173A (en) | 2022-06-07 | 2022-06-07 | Vehicle-mounted static current diagnosis method and device, storage medium and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210636960.1A CN117234173A (en) | 2022-06-07 | 2022-06-07 | Vehicle-mounted static current diagnosis method and device, storage medium and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117234173A true CN117234173A (en) | 2023-12-15 |
Family
ID=89083069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210636960.1A Pending CN117234173A (en) | 2022-06-07 | 2022-06-07 | Vehicle-mounted static current diagnosis method and device, storage medium and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117234173A (en) |
-
2022
- 2022-06-07 CN CN202210636960.1A patent/CN117234173A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112380045B (en) | Vehicle abnormality detection method, device, equipment and storage medium | |
| CN112241164B (en) | Automobile network dormancy testing method, device, equipment and storage medium | |
| US8315829B2 (en) | Battery state-of-health monitoring system and method | |
| EP1669940A1 (en) | Method and apparatus for detecting fault conditions in a vehicle data recording device | |
| JP2002041141A (en) | Abnormality detecting system | |
| US20070188150A1 (en) | System and method for supervising battery for vehicle | |
| CN112148538A (en) | Complete vehicle fault identification method, device and system, vehicle and computer readable storage medium | |
| CN112034818B (en) | Controller fault analysis method and system | |
| CN113763592B (en) | Vehicle feed detection method, system, readable storage medium and computer device | |
| CN110871708A (en) | Intelligent early warning method and system for electric quantity of whole vehicle and vehicle | |
| CN105083168A (en) | Control and diagnosis of a controller wake up feature | |
| CN114889433A (en) | Thermal runaway alarm system and method for battery of electric vehicle | |
| CN106427418A (en) | Tpms system and control method thereof | |
| CN110203157B (en) | Auxiliary diagnosis device for abnormal battery power failure, server and system comprising auxiliary diagnosis device | |
| JP2003063330A (en) | Power supply controller for vehicle | |
| CN113406517A (en) | Vehicle quiescent current detection method and system thereof | |
| CN112333007B (en) | Control method and test method for CAN network diagnosis | |
| CN117234173A (en) | Vehicle-mounted static current diagnosis method and device, storage medium and vehicle | |
| CN115390539A (en) | Vehicle abnormal dormancy diagnosis method and device, vehicle and storage medium | |
| CN114089119A (en) | High-voltage loop fault positioning method and device, electric vehicle and storage medium | |
| CN113928120A (en) | Vehicle battery management system and method | |
| CN114679767A (en) | Controller state identification method and device, domain controller and central gateway | |
| KR20130008702A (en) | Apparatus for monitoring vehicles | |
| CN215552994U (en) | Vehicle control device and vehicle | |
| CN110940922A (en) | Method for determining the cause of premature battery depletion in a vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |