CN114679374A - Reset control method and device and electronic equipment - Google Patents
Reset control method and device and electronic equipment Download PDFInfo
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- CN114679374A CN114679374A CN202011552136.5A CN202011552136A CN114679374A CN 114679374 A CN114679374 A CN 114679374A CN 202011552136 A CN202011552136 A CN 202011552136A CN 114679374 A CN114679374 A CN 114679374A
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- 238000004891 communication Methods 0.000 claims abstract description 15
- 238000011084 recovery Methods 0.000 claims description 11
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40169—Flexible bus arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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Abstract
The invention provides a reset control method, a device and electronic equipment, wherein the fault controller is disconnected from communication with a CAN network when in reset, at the moment, whether a key signal sent by the fault controller CAN be received in the CAN network is judged within a first preset time, namely, the function of judging whether the fault controller is in reset is provided, if the key signal sent by the fault controller cannot be received within the first preset time, the known fault controller is judged to be reset, namely, whether the fault controller is reset CAN be determined by judging whether the key signal is lost. At this time, the signal value of each signal which is not received and sent by the fault controller is set as the effective value of the corresponding signal in the last signal sending period within the first preset time, so that the vehicle can be ensured to work according to the state before the fault controller is restarted, namely, the vehicle can be ensured to work normally.
Description
Technical Field
The invention relates to the field of new energy automobiles, in particular to a reset control method and device and electronic equipment.
Background
The controller of the three-electric system of the new energy automobile generally comprises a vehicle control unit VCU, a motor controller MCU and a battery management unit BMU.
If some controller has internal fault, such as memory read-write error, stack overflow, etc., the fault controller can clear the fault by resetting reset so as to make the fault controller recover to normal.
However, during the resetting process of the fault controller, other controllers do not know that the fault controller is reset, and the fault controller may issue an instruction in error during the resetting process, and at the moment, if the other controllers execute the instruction normally, the safety risk of the vehicle may be caused.
Disclosure of Invention
In view of the above, the present invention provides a reset control method, a reset control apparatus, and an electronic device, so as to solve the problem that in the reset process of a faulty controller, other controllers do not know that the faulty controller is reset, the faulty controller may issue an instruction in error in the reset process, and at this time, if the other controllers execute the instruction normally, the vehicle may have a safety risk.
In order to solve the technical problems, the invention adopts the following technical scheme:
a reset control method comprising:
judging whether a key signal sent by a fault controller CAN be received in a CAN (controller area network) within a first preset time; the key signal is a signal comprising key information used by the fault controller in data calculation; the first preset time is greater than a preset signal sending period and less than the fault controller reset time; the fault controller disconnects communication with the CAN network when reset;
if the key signals sent by the fault controller cannot be received within the first preset time, the signal value of each signal sent by the fault controller which is not received within the first preset time is set as the effective value of the corresponding signal within the last signal sending period.
Preferably, after the signal value of each signal sent by the fault controller and not received is set to the valid value of the corresponding signal at the last time within the first preset time, the method further includes:
judging whether the fault controller is reset successfully within a second preset time after the first preset time; the second preset time is longer than the system recovery normal time after the fault controller is successfully reset;
and if the failure is not successful, controlling to enter a failure mode corresponding to the failure controller.
Preferably, in the process of determining whether the fault controller is successfully reset within a second preset time after the first preset time, the method further includes:
and setting the signal value of each signal which is not received and sent by the fault controller to be a corresponding preset value.
Preferably, the determining whether the fault controller is successfully reset within a second preset time after the first preset time includes:
within the second preset time, circularly judging whether the key signal is received or not at intervals of third preset time; the third preset time is less than the second preset time;
if the key signal is received and is valid, judging that the fault controller is successfully reset;
and if the key signal is not received or the key signal is received but the key signal is invalid, judging that the fault controller is not reset successfully.
A reset control apparatus comprising:
the first judgment module is used for judging whether a key signal sent by a fault controller CAN be received in the CAN within a first preset time; the key signal is a signal comprising key information used by the fault controller in data calculation; the first preset time is greater than a preset signal sending period and less than the fault controller reset time; the fault controller disconnects communication with the CAN network when reset;
the first setting module is used for judging that the key signals sent by the fault controller cannot be received within first preset time, and setting the signal value of each signal sent by the fault controller which is not received within the first preset time as the effective value of the corresponding signal within the last signal sending period.
Preferably, the method further comprises the following steps:
the second judging module is used for judging whether the fault controller is successfully reset or not within a second preset time after the first setting module sets the signal value of each signal which is not received and sent by the fault controller as the effective value of the corresponding signal in the last signal sending period within the first preset time; the second preset time is longer than the system recovery normal time after the fault controller is successfully reset;
and the control module is used for controlling to enter a fault mode corresponding to the fault controller if the fault is not successful.
Preferably, the method further comprises the following steps:
and the second setting module is used for setting the signal value of each signal which is not received and sent by the fault controller to a corresponding preset value in the process of judging whether the fault controller is successfully reset by the second judging module within second preset time after the first preset time.
Preferably, the second determination module includes:
the judgment submodule is used for circularly judging whether the key signal is received or not at intervals of third preset time within the second preset time; the third preset time is less than the second preset time;
if the key signal is received and is valid, judging that the fault controller is successfully reset;
and if the key signal is not received or the key signal is received but the key signal is invalid, judging that the fault controller is not reset successfully.
An electronic device comprising a memory and a processor;
wherein the memory is used for storing programs;
the processor calls a program and is used to:
judging whether a key signal sent by a fault controller CAN be received in a CAN (controller area network) within a first preset time; the key signal is a signal comprising key information used by the fault controller in data calculation; the first preset time is greater than a preset signal sending period and less than the fault controller reset time; the fault controller disconnects communication with the CAN network when reset;
if the key signals sent by the fault controller cannot be received within the first preset time, the signal value of each signal sent by the fault controller which is not received within the first preset time is set as the effective value of the corresponding signal within the last signal sending period.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a reset control method, a device and electronic equipment, wherein the fault controller is disconnected from communication with a CAN network when in reset, at the moment, whether a key signal sent by the fault controller CAN be received in the CAN network is judged within a first preset time, namely, the function of judging whether the fault controller is in reset is provided, if the key signal sent by the fault controller cannot be received within the first preset time, the known fault controller is judged to be reset, namely, whether the fault controller is reset CAN be determined by judging whether the key signal is lost. At this time, the signal value of each signal which is not received and sent by the fault controller is set as the effective value of the corresponding signal in the last signal sending period within the first preset time, so that the vehicle can be ensured to work according to the state before the fault controller is restarted, namely, the vehicle can be ensured to work normally.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a method of resetting a control method according to an embodiment of the present invention;
fig. 2 is a schematic connection diagram of a controller of a three-electric system of a new energy vehicle according to an embodiment of the present invention;
FIG. 3 is a flowchart of another method for resetting a control method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a reset control apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a reset control method, which is applied to a controller in a normal operating state, and with reference to fig. 1, the reset control method may include:
s11, judging whether a key signal sent by a fault controller CAN be received in the CAN within a first preset time; if the critical signal sent by the fault controller cannot be received within the first preset time, executing step S12; if it is determined that the key signal transmitted by the fault controller can be received within the first preset time, step S13 is executed.
The key signal is a signal comprising key information used by the fault controller in data calculation;
the first preset time is greater than a preset signal sending period and less than the fault controller reset time;
the fault controller disconnects communication with the CAN network upon reset.
Specifically, a controller of a three-electric system of a new energy automobile generally comprises a vehicle control unit VCU, a motor controller MCU and a battery management unit BMU. Referring to fig. 2, the vehicle control unit VCU 13, the motor controller MCU 14, the battery management unit BMU 12, and the external controller 11 are all connected to the same CAN network, and the vehicle control unit VCU 13, the motor controller MCU 14, the battery management unit BMU 12, and the external controller 11 may all broadcast signals into the CAN network.
If the VCU of the vehicle control unit fails, the vehicle control unit is a failed controller, and the failed controller can clear the failure by resetting the reset method so as to recover the failed controller.
When the faulty controller is reset, the faulty controller may erroneously send an instruction to another controller because the chip state is unstable or uncontrollable during the reset process, and the other controller may analyze and execute the instruction without knowing the reset of the faulty controller. Therefore, in this embodiment, the fault controller will disconnect from the CAN network, that is, the command generated by the fault controller during the reset process will not be sent to the CAN network, and further, the other controllers will not receive the control command.
Other controllers, such as the motor controller MCU and the battery management unit BMU, may determine whether the key signal sent by the fault controller can be received within a first preset time. I.e., whether a reset of the controller has occurred can be determined based on whether a critical signal is lost.
The preset first preset time is greater than a preset signal sending period and less than the fault controller reset time, and specifically, a signal sent by the controller may be delayed, so the setting of the first preset time greater than the signal sending period is to avoid a situation of signal delay, and in addition, the setting of the first preset time less than the fault controller reset time is because if the preset time is greater than the fault controller reset time, the fault controller may have been successfully reset within the first preset time, it is determined whether the fault controller has been unnecessarily reset, and the setting of the first preset time greater than the signal sending period and less than the fault controller reset time.
In this embodiment, a key signal is introduced, and assuming that the fault controller is a BMS, the key signal may be a main relay state signal, that is, the key signal is a key signal affecting the operation of the vehicle, and if torque control is required, a signal including a torque value is the key signal.
In this embodiment, whether the fault controller is reset is determined by determining whether the key signal is lost, and the controller that normally operates can perform the subsequent corresponding steps.
S12, if the critical signal sent by the fault controller cannot be received within the first preset time, setting the signal value of each signal sent by the fault controller which is not received within the first preset time as the effective value of the corresponding signal within the last signal sending period.
Specifically, when the fault controller is reset, the fault controller cannot send a control signal, at this time, a signal value of each signal sent by the fault controller, which is not received, within the first preset time is set to be an effective value of a corresponding signal within a last signal sending period, and because the reset time of the fault controller is short, a signal value of each signal sent by the fault controller, which is not received, is set to be an effective value of a corresponding signal within a last signal sending period, so that the vehicle can be ensured to work according to a state before the fault controller is restarted, that is, the vehicle can be ensured to work normally.
And S13, controlling the vehicle to work normally.
When the key signals sent by the fault controllers cannot be received, the situation that the controllers are normal is explained, and at the moment, each controller works normally, so that the normal operation of the vehicle is ensured.
In this embodiment, when the fault controller is reset, the communication with the CAN network is disconnected, at this time, it is determined whether a key signal sent by the fault controller CAN be received in the CAN network within a first preset time, that is, it has a function of determining whether the fault controller is reset, and if it is determined that the key signal sent by the fault controller cannot be received within the first preset time, it indicates that the known fault controller is reset, that is, it is determined whether the fault controller is reset by determining whether the key signal is lost. At this time, the signal value of each signal which is not received and sent by the fault controller is set as the effective value of the corresponding signal in the last signal sending period within the first preset time, so that the vehicle can be ensured to work according to the state before the fault controller is restarted, namely, the vehicle can be ensured to work normally.
In addition, the embodiment of the invention can avoid the problem that when a certain controller in the three-electric system is reset, other controllers cannot acquire or cooperate with the abnormality to cause the system to generate safety risk or power loss of the system, and improve the fault tolerance rate, the robustness and the safety of the system of the three-electric system.
Optionally, on the basis of the above embodiment of the reset control method, referring to fig. 3, after step S22, the method may further include:
s24, judging whether the fault controller is reset successfully within a second preset time after the first preset time; if the reset is successful, go to step S23; if the reset is not successful, go to step S25;
and the second preset time is greater than the system recovery normal time after the fault controller is successfully reset.
Specifically, the failure controller is successfully reset, which means that the failure controller executes two parts, namely reset and system recovery, and after the system recovery is executed, the failure controller can normally work. The second preset time is set to be longer than the system recovery normal time after the fault controller is successfully reset, because the fault controller may start to execute the reset within the first preset time and the reset is successful, and thereafter, the fault controller can normally work only when the system recovery needs to be executed, and further, the second preset time is set to be longer than the system recovery normal time after the fault controller is successfully reset.
Optionally, on the basis of this embodiment, step S24 may specifically include:
within the second preset time, circularly judging whether the key signal is received or not at intervals of third preset time; the third preset time is less than the second preset time;
if the key signal is received and is valid, judging that the fault controller is successfully reset; and if the key signal is not received or the key signal is received but the key signal is invalid, judging that the fault controller is not reset successfully.
Specifically, the third preset time may be 5ms or 10ms, and in the second preset time, it is determined whether the key signal is received once every third preset time. And if the key signal is received and is valid, judging that the fault controller is successfully reset. If the key signal is not received or the key signal is received but the key signal is invalid, it indicates that the fault controller cannot normally send the control signal, and at this time, the fault controller is also considered to be unsuccessfully reset.
For example, the BMS is a fault controller, and when the BMS is reset due to a fault, if the main relay status signal is received and is valid, if the main relay is controlled to be in a closed state by the signal, the BMS is considered to be successfully reset.
And S25, controlling to enter a fault mode corresponding to the fault controller.
Specifically, if the reset is not successful, it indicates that the fault controller is still in a fault state, and then enters a fault mode, if the fault controller is the BMS, the fault mode may be system power down, a BMS communication fault is recorded, and a fault lamp is turned on.
It should be noted that, for the explanation of step S21-step S23 in this embodiment, please refer to the corresponding explanation in the above embodiments, which is not repeated herein.
Optionally, on the basis of this embodiment, in the process of executing step S24, the method further includes:
and setting the signal value of each signal which is not received and sent by the fault controller to be a corresponding preset value.
Specifically, in the process of determining whether to reset, in order to ensure normal operation of the vehicle, the signal value of each signal sent by the fault controller, which is not received, is set to a corresponding preset value, so as to ensure normal operation of the vehicle. The preset value is control data of normal running of the vehicle.
In this embodiment, by adding the step of determining whether the reset is successful or not at the second preset time and setting the signal value of each signal sent by the fault controller, which is not received, as the corresponding preset value, it can be ensured that the vehicle can also work normally when the fault controller is reset, the vehicle does not generate a safety risk, the system is powered off or the system power is lost, and the failure controller can be determined to be successfully reset as soon as possible.
In addition, the internal fault of the controller is solved through reset, only hundreds of milliseconds are needed, and if other controllers do not use the method provided by the embodiment of the invention, the signal loss is judged, the system is directly controlled to be powered off, and the availability of the whole vehicle is reduced; if the method provided by the embodiment of the invention is used, after the controller is operated for hundreds of milliseconds by using the set first preset time and the set second preset time, the controller is normally operated again after reset is finished, and the usability of the whole vehicle can be greatly enhanced.
Optionally, on the basis of the embodiment of the reset control method, another embodiment of the present invention provides a reset control apparatus, and with reference to fig. 4, the reset control apparatus may include:
the first judging module 101 is configured to judge whether a key signal sent by a fault controller CAN be received in a CAN network within a first preset time; the key signal is a signal comprising key information used by the fault controller in data calculation; the first preset time is greater than a preset signal sending period and less than the fault controller reset time; the fault controller disconnects communication with the CAN network when resetting;
the first setting module 102 is configured to, if it is determined that the key signal sent by the fault controller cannot be received within a first preset time, set a signal value of each signal sent by the fault controller that is not received within the first preset time to an effective value of a corresponding signal within a last signal sending period.
In this embodiment, when the fault controller is reset, the communication with the CAN network is disconnected, and at this time, it is determined whether the key signal sent by the fault controller CAN be received within a first preset time, that is, it has a function of determining whether the fault controller is reset, and if it is determined that the key signal sent by the fault controller cannot be received within the first preset time, it indicates that the known fault controller is reset, that is, it is determined whether the fault controller is reset by determining whether the key signal is lost. At this time, the signal value of each signal which is not received and sent by the fault controller is set as the effective value of the corresponding signal in the last signal sending period within the first preset time, so that the vehicle can be ensured to work according to the state before the fault controller is restarted, namely, the vehicle can be ensured to work normally.
In addition, the embodiment of the invention can avoid the problem that when a certain controller is reset in the three-electric system, other controllers cannot acquire or cooperate with the abnormality to cause the system to generate a safety risk or the system is powered off or the system power is lost, and improve the fault tolerance rate, the system robustness and the safety of the three-electric system.
It should be noted that, for the working process of each module in this embodiment, please refer to the corresponding description in the above embodiments, which is not described herein again.
Optionally, on the basis of the embodiment of the reset control apparatus, the method further includes:
the second judging module is used for judging whether the fault controller is successfully reset or not within a second preset time after the first setting module sets the signal value of each signal which is not received and sent by the fault controller as the effective value of the corresponding signal in the last signal sending period within the first preset time; the second preset time is longer than the system recovery normal time after the fault controller is successfully reset;
and the control module is used for controlling to enter a fault mode corresponding to the fault controller if the fault is not successful.
Further, still include:
and the second setting module is used for setting the signal value of each signal which is not received and sent by the fault controller to a corresponding preset value in the process of judging whether the fault controller is successfully reset by the second judging module within second preset time after the first preset time.
Further, the second determination module includes:
the judgment submodule is used for circularly judging whether the key signal is received or not at intervals of third preset time within the second preset time; the third preset time is less than the second preset time;
if the key signal is received and is valid, judging that the fault controller is successfully reset;
and if the key signal is not received or the key signal is received but the key signal is invalid, judging that the fault controller is not reset successfully.
In this embodiment, by adding the step of determining whether the reset is successful or not at the second preset time and setting the signal value of each signal sent by the fault controller, which is not received, to the corresponding preset value, it can be ensured that the vehicle can also work normally when the fault controller is reset, the vehicle does not generate a safety risk, the system is powered off or the system power is lost, and the success of the reset of the fault controller can be determined as soon as possible.
In addition, the internal fault of the controller is solved through reset, only hundreds of milliseconds are needed, and if other controllers do not use the method provided by the embodiment of the invention, the signal loss is judged, the system is directly controlled to be powered off, and the availability of the whole vehicle is reduced; if the method provided by the embodiment of the invention is used, after the controller is operated for hundreds of milliseconds by using the set first preset time and second preset time, the controller is normally operated again after reset is finished, and the usability of the whole vehicle can be greatly enhanced.
It should be noted that, please refer to the corresponding description in the above embodiment for the working process of each module and sub-module in this embodiment, which is not described herein again.
Optionally, on the basis of the embodiments of the reset control method and apparatus, another embodiment of the present invention provides an electronic device, which may include a memory and a processor;
wherein the memory is used for storing programs;
the processor calls a program and is used to:
judging whether a key signal sent by a fault controller CAN be received in a CAN (controller area network) within a first preset time; the key signal is a signal comprising key information used by the fault controller in data calculation; the first preset time is greater than a preset signal sending period and less than the fault controller reset time; the fault controller disconnects communication with the CAN network when resetting;
if the key signals sent by the fault controller cannot be received within the first preset time, the signal value of each signal sent by the fault controller which is not received within the first preset time is set as the effective value of the corresponding signal within the last signal sending period.
In this embodiment, when the fault controller is reset, the communication with the CAN network is disconnected, and at this time, it is determined whether the key signal sent by the fault controller CAN be received within a first preset time, that is, it has a function of determining whether the fault controller is reset, and if it is determined that the key signal sent by the fault controller cannot be received within the first preset time, it indicates that the known fault controller is reset, that is, it is determined whether the fault controller is reset by determining whether the key signal is lost. At this time, the signal value of each signal which is not received and sent by the fault controller is set as the effective value of the corresponding signal in the last signal sending period within the first preset time, so that the vehicle can be ensured to work according to the state before the fault controller is restarted, namely, the vehicle can be ensured to work normally.
In addition, the embodiment of the invention can avoid the problem that when a certain controller is reset in the three-electric system, other controllers cannot acquire or cooperate with the abnormality to cause the system to generate a safety risk or the system is powered off or the system power is lost, and improve the fault tolerance rate, the system robustness and the safety of the three-electric system.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. 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 invention. Thus, the present invention 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 (9)
1. A reset control method, comprising:
judging whether a key signal sent by a fault controller CAN be received in a CAN (controller area network) within a first preset time; the key signal is a signal comprising key information used by the fault controller in data calculation; the first preset time is greater than a preset signal sending period and less than the fault controller reset time; the fault controller disconnects communication with the CAN network when reset;
if the key signals sent by the fault controller cannot be received within the first preset time, the signal value of each signal sent by the fault controller and not received within the first preset time is set as the effective value of the corresponding signal within the last signal sending period.
2. The reset control method according to claim 1, wherein after the signal value of each signal sent by the fault controller that is not received is set to the valid value of the corresponding signal at the previous time within the first preset time, the method further comprises:
judging whether the fault controller is reset successfully within a second preset time after the first preset time; the second preset time is longer than the system recovery normal time after the fault controller is successfully reset;
and if the failure is not successful, controlling to enter a failure mode corresponding to the failure controller.
3. The reset control method according to claim 2, wherein in determining whether the fault controller is successfully reset within a second preset time after the first preset time, the method further comprises:
and setting the signal value of each signal which is not received and sent by the fault controller to be a corresponding preset value.
4. The reset control method of claim 2, wherein determining whether the fault controller is reset successfully within a second preset time after the first preset time comprises:
within the second preset time, circularly judging whether the key signal is received or not at intervals of third preset time; the third preset time is less than the second preset time;
if the key signal is received and is valid, judging that the fault controller is successfully reset;
and if the key signal is not received or the key signal is received but the key signal is invalid, judging that the fault controller is not reset successfully.
5. A reset control apparatus, comprising:
the first judgment module is used for judging whether a key signal sent by a fault controller CAN be received in the CAN within a first preset time; the key signal is a signal comprising key information used by the fault controller in data calculation; the first preset time is greater than a preset signal sending period and less than the fault controller reset time; the fault controller disconnects communication with the CAN network when reset;
the first setting module is used for judging that the key signals sent by the fault controller cannot be received within a first preset time, and setting the signal value of each signal sent by the fault controller which is not received within the first preset time as the effective value of the corresponding signal within the last signal sending period.
6. The reset control apparatus of claim 5, further comprising:
the second judging module is used for judging whether the fault controller is successfully reset or not within a second preset time after the first setting module sets the signal value of each signal which is not received and sent by the fault controller as the effective value of the corresponding signal in the last signal sending period within the first preset time; the second preset time is longer than the system recovery normal time after the fault controller is successfully reset;
and the control module is used for controlling to enter a fault mode corresponding to the fault controller if the fault is not successful.
7. The reset control apparatus of claim 6, further comprising:
and the second setting module is used for setting the signal value of each signal which is not received and sent by the fault controller to a corresponding preset value in the process of judging whether the fault controller is successfully reset by the second judging module within second preset time after the first preset time.
8. The reset control apparatus of claim 6, wherein the second determination module comprises:
the judgment submodule is used for circularly judging whether the key signal is received or not at intervals of third preset time within the second preset time; the third preset time is less than the second preset time;
if the key signal is received and is valid, judging that the fault controller is successfully reset;
and if the key signal is not received or the key signal is received but the key signal is invalid, judging that the fault controller is not reset successfully.
9. An electronic device comprising a memory and a processor;
wherein the memory is used for storing programs;
the processor calls a program and is used to:
judging whether a key signal sent by a fault controller CAN be received in a CAN (controller area network) within a first preset time; the key signal is a signal comprising key information used by the fault controller in data calculation; the first preset time is greater than a preset signal sending period and less than the fault controller reset time; the fault controller disconnects communication with the CAN network when reset;
if the key signals sent by the fault controller cannot be received within the first preset time, the signal value of each signal sent by the fault controller which is not received within the first preset time is set as the effective value of the corresponding signal within the last signal sending period.
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