CN114488990A - Fault simulation device and fault simulation method for vehicle - Google Patents
Fault simulation device and fault simulation method for vehicle Download PDFInfo
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- CN114488990A CN114488990A CN202011155070.6A CN202011155070A CN114488990A CN 114488990 A CN114488990 A CN 114488990A CN 202011155070 A CN202011155070 A CN 202011155070A CN 114488990 A CN114488990 A CN 114488990A
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- 238000004088 simulation Methods 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 title claims description 29
- 238000012545 processing Methods 0.000 claims abstract description 121
- 230000003993 interaction Effects 0.000 claims description 40
- 230000008569 process Effects 0.000 claims description 7
- 238000012360 testing method Methods 0.000 description 11
- 230000007704 transition Effects 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 6
- 238000011161 development Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Abstract
The invention relates to a fault simulation device for a vehicle, comprising: an input signal processing module configured to receive a signal from a sensor; a signal processing module configured to generate a fault simulation signal with respect to the signal from the sensor; and an output signal processing module configured to output the fault simulation signal to an electronic control unit.
Description
Technical Field
The invention relates to the field of automobile electronic system testing, in particular to a fault simulation device and a fault simulation method for a vehicle.
Background
At present, no integrated automobile sensor signal acquisition and fault simulation testing device specially used for a digital signal interface of a sensor of an electronic control unit (an automobile electronic system and an ECU) exists in the field, a traditional diagnosis box (BOB) can only simulate failure modes such as open circuit and short circuit, purposeful modification of the output value of the sensor cannot be carried out, and therefore fault simulation and testing of the failure modes such as output drift, bias, unreasonable and out-of-range are difficult to carry out. In addition, the existing testing device can only realize the test on the rack, and cannot conveniently complete the task of the test of the whole vehicle. The existing testing device can only aim at a single type of signal and cannot be compatible with the acquisition and fault simulation of multiple signals, and when a plurality of different types of digital signal interfaces need to be tested on an engineering development vehicle at the same time, more complex testing equipment is often needed, which can lead to higher cost. On the other hand, data acquired by the existing signal acquisition and test equipment cannot be conveniently integrated with vehicle bus signal data synchronously, so that developers are difficult to synchronously and uniformly acquire and analyze the vehicle bus data and the sensor digital signal data through a CAN bus data acquisition tool.
Disclosure of Invention
The invention aims to provide a fault simulation mechanism for a vehicle, which can realize fault simulation and test of failure modes related to sensor parameters, such as drift, bias, unreasonable and out-of-range modes. Specifically, the method comprises the following steps:
according to an aspect of the present invention, there is provided a failure simulation apparatus for a vehicle, including: an input signal processing module configured to receive a signal from a sensor; a signal processing module configured to generate a fault simulation signal with respect to the signal from the sensor; and an output signal processing module configured to output the fault simulation signal to an electronic control unit.
Optionally, in some embodiments of the present invention, the apparatus further comprises a human-computer interaction unit connected to the signal processing module, wherein: the signal processing module is also configured to analyze the signal from the sensor and send the signal to the human-computer interaction unit; and the signal processing module is also configured to receive a fault simulation instruction from the human-computer interaction unit and generate the fault simulation signal according to the fault simulation instruction.
Optionally, in some embodiments of the present invention, the human-computer interaction unit includes a touch display screen, the touch display screen is configured to display the analyzed signal and receive a designation of the fault simulation instruction, and the human-computer interaction unit generates the fault simulation instruction according to the designation.
Optionally, in some embodiments of the invention, the signal from the sensor is based on an operating mode, and the signal processing module supports at least one of the following operating modes: PWM, send, frequency signal.
Optionally, in some embodiments of the invention, the human-machine interaction unit is further configured to specify the working mode.
Optionally, in some embodiments of the invention, the signal processing module is further configured to determine the operating mode according to a property of the signal from the sensor.
Optionally, in some embodiments of the invention, the human-machine interaction unit is further configured to modify the working mode.
Optionally, in some embodiments of the invention, the device further comprises a bus transceiver module connected to the signal processing module and configured to send messages regarding the signals from the sensors and the fault simulation signal to a bus of a vehicle.
Optionally, in some embodiments of the invention, the input signal processing module is further configured to pre-process the signal from the sensor, and the output signal processing module is further configured to divide the fault simulation signal.
According to another aspect of the present invention, there is provided a fault simulation method including: receiving a signal from a sensor; generating a fault simulation signal with respect to the signal from the sensor; and outputting the fault simulation signal to an electronic control unit.
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The above and other objects and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which like or similar elements are designated by like reference numerals.
Fig. 1 shows a failure simulation apparatus for a vehicle according to an embodiment of the present invention.
FIG. 2 illustrates a fault simulation method according to one embodiment of the present invention.
Fig. 3 shows a failure simulation apparatus for a vehicle according to an embodiment of the present invention.
Detailed Description
According to an aspect of the present invention, a fault simulation apparatus for a vehicle is provided. As shown in fig. 1, the fault simulation apparatus 10 includes an input signal processing module 102, a signal processing module 104, and an output signal processing module 106. For clarity of presentation of the principle of the invention, a plurality of sensors 21, 22, … …, 2N and an electronic control unit 30 are also shown in fig. 1 connected to the fault simulation device 10, the electronic control unit 30 may be any type of ECU, and the number thereof is not limited to 1 in fig. 1. The signals from the plurality of sensors 21, 22, … …, 2N could be sent directly to, for example, the electronic control unit 30, but in order to simulate faults in the signal transmission process and to observe the handling of the faults by the various parts, the fault simulation apparatus 10 intercepts the signals and sends purposefully modified fault simulation signals to, for example, the electronic control unit 30.
The input signal processing module 102 is configured to receive signals from the sensors 21, 22, … …, 2N. The input signal processing module 102 may include a signal input interface whereby it may be connected to a vehicle ECU diagnostic box to enable reading of signals from the sensors. The input signal processing module 102 is shown in fig. 3 receiving signals from the sensors via an interface in the diagnostic cartridge 40. Since the sensors can be of various types, and the signal formats of the sensors will be different, the input signal processing module 102 of the present invention can read sensor signals of different formats. In some examples, the signals from the sensors are transmitted in an exclusive manner sharing a channel input to the signal processing module 102, in other examples, the signals from the sensors may also be transmitted in parallel to the signal processing module 102. In some embodiments of the present invention, the input signal processing module 102 is further configured to pre-process the signals from the sensors, which may be, for example, filtering, pre-emphasis, etc., and send the processed signals to the signal processing module 104. For digital signals, the input signal processing module 102 may focus primarily on its transition edges.
The signal processing module 104 is configured to generate a fault simulation signal with respect to the signal from the sensor. The signal processing module 104 may generate a fault simulation signal associated therewith based on the signals from the sensors, in other words, the fault simulation signal is an adaptation of the signals from the sensors, for example, a failure mode of output drift, bias, irrational, out of range, etc. may be injected therein, such that various faults that may exist in the actual operation of the vehicle may be simulated. The signal processing module 104 generates the fault simulation signal with respect to the signals from the sensors, and thus the signal processing module 104 may need to support multiple types of sensors or sensor signal types. In some embodiments of the present invention, the signal from a certain sensor may be based on a specific operation mode, i.e. corresponding to a specific signal type, and the signal processing module 104 supports at least one of the following operation modes: PWM, send, frequency signals, in other examples, the signal processing module 104 may also support other sensor signal types. In some examples, signal processing module 104 may include, for example, 8 sets of digital signal input-output channels, and each set may support three types of digital signals, PWM, SENT, frequency signals. In some examples, the signal processing module 104 may be implemented as a control component such as a microcontroller, which may be used to execute a compiled program or the like to implement various control, processing, computing, or the like functions.
The output signal processing module 106 is configured to output a fault simulation signal to the electronic control unit. The output signal processing module 106 may include a signal output interface whereby it may be connected to a vehicle ECU diagnostic box to enable output of signals to the electronic control unit to enable fault simulation of the signals. The output signal processing module 106 is shown in fig. 3 outputting the fault simulation signal via an interface in the diagnostic cartridge 40. In some embodiments of the present invention, the output signal processing module 106 may further perform a voltage division process on the fault analog signal and output the fault analog signal to the signal output interface.
In some embodiments of the present invention, as shown in fig. 3, the fault simulation apparatus 10 may further include a human-machine interaction unit 108, and the human-machine interaction unit 108 is connected to the signal processing module 104. It is shown in fig. 3 that the human-computer interaction unit 108 and the signal processing module 104 can implement bidirectional communication, and although the other modules shown in the figure may implement unidirectional communication, this is not necessarily a limitation, and the types of channels that can implement the transmission of signals, data, etc. in the specific example of the present invention are all feasible. The signal processing module 104 is further configured to analyze the signal from the sensor and send the signal to the human-computer interaction unit 108, for example, the signal processing module 104 may capture the signal transition edge from the input signal processing module 102 according to the working mode of each channel, and analyze the signal into a signal with physical meaning after corresponding operation according to the time interval and the transition edge type (rising edge or falling edge); alternatively, the human interaction unit 108 may receive the parsed signal and present it in some form.
The signal processing module 104 is further configured to receive a fault simulation instruction from the human-computer interaction unit 108, and generate a fault simulation signal according to the fault simulation instruction. For example, the signal processing module 104 may receive a signal fault simulation instruction value sent by the human-computer interaction unit 108, and the signal processing module 104 generates an output signal transition edge according to the working mode of each channel through an algorithm according to the fault simulation instruction and sends the output signal transition edge to the vehicle electronic control unit through the output signal processing module 106. The instructions in the present invention may also be referred to as commands, which may be in the form of a signal.
In some embodiments of the invention, the human-machine interaction unit 108 comprises a touch-sensitive display screen configured to display the parsed signal and to receive a specification of the fault simulation instruction, according to which the human-machine interaction unit 108 generates the fault simulation instruction. For example, the touch screen may be used to display the analyzed signal with the physical meaning, and the user may further specify the parameters (fault simulation instruction values) of the fault simulation instruction through the touch screen, and the human-computer interaction unit 108 generates the fault simulation instruction according to the specification of the parameters and sends the fault simulation instruction to the signal processing module 104.
In some embodiments of the invention, the human-machine-interaction unit 108 is further configured to specify an operating mode. It is described above that the signal processing module 104 can capture the signal transition edge from the input signal processing module 102 according to the operation mode of each channel, and in some examples, the operation mode of the channel can be specified (for example, one operation mode is selected from PWM, send, and frequency signals) by the human-computer interaction unit 108 (specifically, the touch display screen can be described above), and then the signal processing module 104 can receive the specification of the operation mode and execute the processing related to the operation mode.
In some embodiments of the invention, the signal processing module 104 is further configured to determine the operating mode based on the nature of the signal from the sensor. In some examples, the signal processing module 104 may also determine the operating mode of the signal from the sensor itself. For example, the signal from the sensor may declare its operating mode, from which the signal processing module 104 may determine the operating mode. The signal processing module 104 may also distinguish between different modes of operation based on their different behavior on the signal. Furthermore, the operating mode of the sensor is generally fixed, and the sensor may declare its type (and also a signal property) in the transmitted data, so that the signal processing module 104 may also determine its operating mode based on the source sensor. The operation mode determined by the signal processing module 104 can be presented through the human-computer interaction unit 108, for example, can be displayed through a touch display screen.
In some embodiments of the invention, the human-machine-interaction unit 108 is further configured to modify the mode of operation. The above describes that the signal processing module 104 can determine the operation mode of the signal from the sensor by itself, but such determination is not always accurate. For this reason, in some examples, the operation mode determined in advance by the signal processing module 104 may also be modified by the human-computer interaction unit 108, for example, the operation mode may be further adjusted by a touch display screen.
In some embodiments of the invention, with continued reference to fig. 3, the fault simulation device 10 further includes a bus transceiver module 110 (e.g., a CAN bus transceiver module), the bus transceiver module 110 being connected to the signal processing module 104 and configured to send messages regarding the signals from the sensors and the fault simulation signals to the bus of the vehicle. In some examples, the signal processing module 104 may send the sensor signal message actually received after being analyzed and the fault signal message actually sent to the vehicle ECU to the human-computer interaction unit 108 and the bus transceiver module 110 in real time, so as to facilitate a tester to monitor the current state and perform bus data acquisition. The bus transceiver module 110 is connected to the signal processing module 104 and a bus (e.g., a CAN bus), processes a bus message sent by the signal processing module 104 and sends the processed bus message to the bus, so that a developer CAN synchronously acquire and analyze data of the signal processing system and data of the vehicle bus by monitoring a sensor, a fault simulation state and the vehicle bus data synchronously through a data acquisition device with bus acquisition capability.
According to another aspect of the present invention, a fault simulation method is provided. Referring to fig. 2, the fault simulation method includes the following steps. The signal from the sensor may be received in step S21 by, for example, an input signal processing module. The input signal processing module may include a signal input interface whereby it may be connected to a vehicle ECU diagnostic box to enable reading of signals from the sensors. Since the sensors can be of various types and the signal formats of the sensors are different, the input signal processing module can read the sensor signals of different formats. In some examples, signals from the sensors are transmitted in an exclusive manner sharing a channel input to the signal processing module, in other examples, signals from the sensors may also be transmitted in parallel to the signal processing module. In some embodiments of the invention, the fault simulation method further comprises preprocessing the signals from the sensors and sending the processed signals to the signal processing module, the preprocessing being, for example, filtering, pre-emphasis, etc. For digital signals, the input signal processing module may be primarily concerned with its transition edges.
The fault simulation method of the present invention may generate a fault simulation signal with respect to a signal from the sensor through, for example, a signal processing module in step S22. The signal processing module may generate a fault simulation signal associated therewith based on the signal from the sensor, in other words, the fault simulation signal is an adaptation of the signal from the sensor, for example, a failure mode of output drift, bias, irrational, out of range, etc. may be injected therein, so that various faults that may exist in the actual operation of the vehicle may be simulated. The signal processing module generates the fault simulation signal with respect to the signals from the sensors, and thus the signal processing module may need to support multiple types of sensors or sensor signal types. In some embodiments of the present invention, the signal from a certain sensor may be based on a specific operation mode, i.e. corresponding to a specific signal type, the signal processing module supporting at least one of the following operation modes: PWM, send, frequency signals, in other examples, the signal processing module may also support other sensor signal types. In some examples, the signal processing module may include, for example, 8 sets of digital signal input-output channels, and each set may support three types of digital signals, PWM, send, and frequency signals. In some examples, the signal processing module may be implemented as a control component such as a microcontroller, which may be used to execute a compiled program or the like to implement various control, processing, operation, or the like functions.
The fault simulation method of the present invention may output the fault simulation signal to the electronic control unit through, for example, the output signal processing module in step S23. The output signal processing module can comprise a signal output interface, and therefore the output signal processing module can be connected to a vehicle ECU diagnosis box, so that signals can be output to the electronic control unit, and fault simulation of the signals can be achieved. In some embodiments of the present invention, the output signal processing module may further perform voltage division processing on the fault analog signal and output the fault analog signal to the signal output interface.
In some embodiments of the present invention, the fault simulation method of the present invention further includes analyzing the signal from the sensor through, for example, a signal processing module and sending the signal to a human-computer interaction unit, where the signal processing module can capture the signal transition edge from the input signal processing module according to the working mode of each channel, and analyze the signal into a signal with a physical meaning after corresponding operations according to the time interval and the transition edge type (rising edge or falling edge); alternatively, the human interaction unit may receive the parsed signal and present it in some form.
The fault simulation method further comprises the steps of receiving a fault simulation instruction from the human-computer interaction unit through a signal processing module, and generating a fault simulation signal according to the fault simulation instruction. For example, the signal processing module can receive a signal fault simulation instruction value sent by the human-computer interaction unit, and the signal processing module generates an output signal jump edge according to the working mode of each channel through an algorithm according to the fault simulation instruction and then sends the output signal jump edge to the vehicle electronic control unit.
The fault simulation method of the invention further comprises displaying the analyzed signal through, for example, a touch display screen and receiving a designation of a fault simulation instruction, and the man-machine interaction unit generates the fault simulation instruction according to the designation. For example, the touch display screen may be configured to display the analyzed signal with the physical meaning, and the user may further specify the parameters (fault simulation instruction values) of the fault simulation instruction through the touch display screen, and the human-computer interaction unit generates the fault simulation instruction according to the specification of the parameters and sends the fault simulation instruction to the signal processing module.
In some embodiments of the invention, the fault simulation method of the invention further comprises specifying the operating mode by, for example, a human machine interaction unit. It is described above that the signal processing module may capture a signal transition edge from the input signal processing module according to an operation mode of each channel, and in some examples, an operation mode of a channel may be specified (e.g., one operation mode selected from PWM, send, frequency signals) by the human-computer interaction unit (specifically, may be through the above-noted touch display screen), and then the signal processing module may receive the specification of the operation mode and perform processing related thereto in the mode.
In some embodiments of the invention, the fault simulation method of the invention further comprises determining, by for example a signal processing module, an operating mode based on the nature of the signal from the sensor. In some examples, the signal processing module may also determine the operating mode of the signal from the sensor itself. For example, the signal from the sensor may declare its operating mode, from which the signal processing module may determine the operating mode. The signal processing module can also distinguish different working modes according to different performances of the working modes on signals. Furthermore, the operating mode of the sensor is generally fixed, and the sensor can declare its type (also a signal property) in the transmitted data, so that the signal processing module can also determine its operating mode according to the source sensor. The working mode determined by the signal processing module can be presented through the man-machine interaction unit, for example, can be displayed through a touch display screen.
In some embodiments of the invention, the fault simulation method of the invention further comprises modifying the operation mode by, for example, a human-machine interaction unit. The above describes that the signal processing module can determine the operation mode of the signal from the sensor by itself, but this determination is not always accurate. For this reason, in some examples, the working mode determined in advance by the signal processing module may also be modified by the human-computer interaction unit, for example, the working mode may be further adjusted by the touch display screen.
In some embodiments of the invention, the fault simulation method of the invention further comprises sending messages regarding the signals from the sensors and the fault simulation signals to a bus of the vehicle, for example, via a bus transceiver module. In some examples, the signal processing module may send the analyzed and actually received sensor signal message and the analyzed and actually sent fault signal message to the vehicle ECU in real time to the human-computer interaction unit and the bus transceiver module, so that a tester can monitor the current state and perform bus data acquisition conveniently. The bus transceiver module is respectively connected with the signal processing module and a bus (such as a CAN bus), bus messages sent by the signal processing module are processed and then sent to the bus, and developers CAN synchronously monitor the sensor, the state of fault simulation and vehicle bus data through data acquisition equipment with bus acquisition capacity, so that synchronous acquisition and analysis of signal processing system data and vehicle bus data are realized.
According to another aspect of the present invention, there is provided a computer readable storage medium, a computer readable program, a computer readable recording medium, a computer readable program, a computer readable recording medium, a computer readable program, a computer readable recording mediumA computer readable storage medium having stored thereon instructions, which when executed by a processor, cause the processor to perform any of the methods as described above. Computer-readable media, as referred to herein, includes all types of computer storage media, which can be any available media that can be accessed by a general purpose or special purpose computer. By way of example, computer-readable media may include RAM, ROM, EPROM, E2PROM, registers, hard disk, removable disk, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other temporary or non-temporary medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general purpose or special purpose computer, or a general purpose or special purpose processor. Disk (disk) and disc (disc), as used herein, includes Compact Disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In the alternative, the processor and the storage medium may reside as discrete components in a user terminal.
The above examples mainly describe the failure simulation apparatus for a vehicle and the failure simulation method, in which the failure simulation apparatus for a vehicle can be placed in a passenger compartment or a trunk. The fault simulation mechanism of the invention can improve the convenience, integration and versatility of the electronic control unit signal interface test. In a further example, the collected sensor data CAN be conveniently collected synchronously with the vehicle CAN bus data to facilitate engineering development data analysis. The CAN bus CAN be connected with the data acquisition equipment to realize signal acquisition, and the vehicle CAN bus data acquisition equipment widely applied to the development process CAN be directly used for the device, so that high compatibility and low cost are realized. The mechanism can collect 8-path sensor digital signals and can transmit the signals simulating the faults back to the electronic control unit, so that the functions of multi-path signal collection and fault simulation are realized, and the integration level is high. In the mechanism, the receiving and sending of digital signals can be realized through a microcontroller software algorithm, and any one path of signals can support the receiving and sending of three types of signals, namely PWM, SENT and rotation speed frequency signals through the configuration of a human-computer interface, so that the mechanism has multiple functions. The mechanism can also utilize a software algorithm to carry out random modification and fault simulation on the output tested signal, thereby realizing the full failure mode simulation of the tested signal.
Although only a few embodiments of the present invention have been described, those skilled in the art will appreciate that the present invention may be embodied in many other forms without departing from the spirit or scope thereof. Accordingly, the present examples and embodiments are to be considered as illustrative and not restrictive, and various modifications and substitutions may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (10)
1. A fault simulation apparatus for a vehicle, characterized in that the apparatus comprises:
an input signal processing module configured to receive a signal from a sensor;
a signal processing module configured to generate a fault simulation signal with respect to the signal from the sensor; and
an output signal processing module configured to output the fault simulation signal to an electronic control unit.
2. The apparatus of claim 1, further comprising a human-machine interaction unit connected to the signal processing module, wherein:
the signal processing module is also configured to analyze the signal from the sensor and send the signal to the human-computer interaction unit; and
the signal processing module is also configured to receive a fault simulation instruction from the human-computer interaction unit and generate the fault simulation signal according to the fault simulation instruction.
3. The apparatus of claim 2, the human-machine interaction unit comprising a touch-sensitive display configured to display the parsed signal and to receive a designation of the fault simulation instruction, the human-machine interaction unit generating the fault simulation instruction according to the designation.
4. The apparatus of claim 3, the signal from the sensor being based on an operational mode, and the signal processing module supporting at least one of the following operational modes: PWM, send, frequency signal.
5. The apparatus of claim 4, the human-machine interaction unit further configured to specify the operating mode.
6. The apparatus of claim 4, the signal processing module further configured to determine the operating mode based on a property of the signal from the sensor.
7. The apparatus of claim 6, the human-machine interaction unit further configured to modify the operational mode.
8. The apparatus of any one of claims 1-7, further comprising a bus transceiver module connected to the signal processing module and configured to send messages regarding the signals from the sensors and the fault simulation signal to a bus of a vehicle.
9. The apparatus of any of claims 1-7, the input signal processing module further configured to pre-process the signal from the sensor, and the output signal processing module further configured to divide the fault simulation signal.
10. A method of fault simulation, the method comprising:
receiving a signal from a sensor;
generating a fault simulation signal with respect to the signal from the sensor; and
and outputting the fault simulation signal to an electronic control unit.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140005881A1 (en) * | 2012-07-02 | 2014-01-02 | Carmen Hardesty | Automotive Diagnostic System |
| CN104914769A (en) * | 2015-06-19 | 2015-09-16 | 陕西法士特齿轮有限责任公司 | CAN bus-based data acquisition system and acquisition processing method |
| CN105094109A (en) * | 2014-05-23 | 2015-11-25 | 上海通用汽车有限公司 | Fault injection device |
| CN105204450A (en) * | 2014-06-17 | 2015-12-30 | 上海通用汽车有限公司 | Fault injection system |
| CN109932604A (en) * | 2019-04-03 | 2019-06-25 | 武汉菱电汽车电控系统股份有限公司 | Wide oxygen failure simulation method, apparatus and system |
-
2020
- 2020-10-26 CN CN202011155070.6A patent/CN114488990A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140005881A1 (en) * | 2012-07-02 | 2014-01-02 | Carmen Hardesty | Automotive Diagnostic System |
| CN105094109A (en) * | 2014-05-23 | 2015-11-25 | 上海通用汽车有限公司 | Fault injection device |
| CN105204450A (en) * | 2014-06-17 | 2015-12-30 | 上海通用汽车有限公司 | Fault injection system |
| CN104914769A (en) * | 2015-06-19 | 2015-09-16 | 陕西法士特齿轮有限责任公司 | CAN bus-based data acquisition system and acquisition processing method |
| CN109932604A (en) * | 2019-04-03 | 2019-06-25 | 武汉菱电汽车电控系统股份有限公司 | Wide oxygen failure simulation method, apparatus and system |
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