CN117539212A - Off-line automatic mutual detection method for double-whole-vehicle controller - Google Patents
Off-line automatic mutual detection method for double-whole-vehicle controller Download PDFInfo
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- CN117539212A CN117539212A CN202210923060.5A CN202210923060A CN117539212A CN 117539212 A CN117539212 A CN 117539212A CN 202210923060 A CN202210923060 A CN 202210923060A CN 117539212 A CN117539212 A CN 117539212A
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- 238000012360 testing method Methods 0.000 claims abstract description 61
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
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- 239000008358 core component Substances 0.000 description 1
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- 239000002283 diesel fuel Substances 0.000 description 1
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Classifications
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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
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0275—Fault isolation and identification, e.g. classify fault; estimate cause or root of failure
Abstract
The invention discloses a method and a system for automatically testing the off-line of a double-vehicle controller, wherein a first vehicle controller VCU1 and a second vehicle controller VCU2 are tested at the same time, a control and recording module of the system controls the first vehicle controller VCU1 and the second vehicle controller VCU2 to generate input signals at the same time, and then the input signals are read in a crossing mode and fed back to the control and recording module for consistency judgment after being received. The beneficial effects of the invention are mainly as follows: the method is used for solving the problems that when a single whole vehicle controller is off line, different tests are carried out for different vehicle types, the detection content is different, the test time is long, the test efficiency is low and the like; meanwhile, an additional driving control module and a data acquisition module are not needed, so that the test tool is reduced and the test cost is reduced while the test efficiency of the whole vehicle controller is ensured. The two whole vehicle controllers related by the invention are not only the tested unit, but also the testing equipment; and simultaneously, the efficiency can be greatly improved by testing.
Description
Technical Field
The invention relates to the field of hybrid vehicle power control, in particular to a vehicle chassis control test method, and specifically relates to a vehicle controller off-line test method.
Background
Today, the fuels such as gasoline, diesel oil and the like used by the traditional fuel automobiles face the increasingly exhausted crisis, meanwhile, the automobile exhaust emission also brings more and more serious pollution to the environment, and new energy automobiles become the necessary trend of automobile development. The whole vehicle controller is used as a core component in a new energy automobile control system, has a key effect on safe and reliable operation of the vehicle, and development of related test technology has important effects on improving development efficiency of the whole vehicle controller, simplifying functional test flow, improving delivery efficiency and the like. The existing test device adopts an industrial control board card to test the whole vehicle controller, the implementation is complex, the test development difficulty is high, and the efficiency is low; meanwhile, the existing testing device is developed for specific functions, and adaptability is required to be improved.
In addition, the main function of the vehicle controller is to realize the control signal required by the correct output at a specific moment according to the input electric signal and the internal program, and the hardware detection and the reliability test of the vehicle controller need to confirm whether the input and the output are normal or not. The special signal generating and receiving device is usually required to verify whether the hardware input and output of the tested vehicle controller are normal, and a special digital-analog signal generating and converting module is required; meanwhile, in order to maintain the universality of connectors, the whole vehicle controllers of different models can use the same connectors, which can lead to the same connectors, but pins at the same positions in the controllers of different models have different functional definitions, so that a plurality of different defined connectors and wiring harnesses thereof need to be prepared for testing. Of course, more whole vehicle controllers use different connectors, a single controller is required to perform different tests on different vehicle types, the detection content is different, the test time is long, and the test efficiency is low.
Therefore, it is necessary to design an automatic test device and method for the whole vehicle controller, which have low cost, simple implementation and wide application range.
Disclosure of Invention
The invention aims to solve the technical problems and provides an off-line automatic mutual testing method of a double-whole-vehicle controller.
The aim of the invention is achieved by the following technical scheme:
the off-line automatic mutual test method for the double vehicle controllers simultaneously tests the first vehicle controller VCU1 and the second vehicle controller VCU2 comprises the following steps,
step 1: when the system detects the accessed first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 to be tested, the system automatically switches on a power supply;
step 2: the system performs data initialization and update on the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2, and simultaneously reads corresponding temperature signals and power supply voltage signals;
step 3: starting automatic mutual measurement of the double vehicle controllers;
the control and recording module of the system controls the first whole vehicle controller VCU1 to generate a first input signal, the control and recording module simultaneously controls the second whole vehicle controller VCU2 to generate a second input signal, then the second whole vehicle controller VCU2 reads the first input signal and feeds back the first input signal to the control and recording module, and meanwhile the first whole vehicle controller VCU1 reads the second input signal and feeds back the second input signal to the control and recording module, and the control and recording module receives and then carries out consistency judgment;
repeating the steps;
step 4: after the tested test data of the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 are cleared, the power supply of the system is cut off; and taking down the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 to be tested after delaying for 3 seconds.
Preferably, the step of initializing and updating data by the system for the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 specifically includes:
the system updates bootloader software for the VCU1 and the VCU2 simultaneously according to the requirement of the project;
after successful refreshing, the system updates application software for VCU1 and VCU2 according to the requirement of the project;
after successful refreshing, the software version numbers of the VCU1 and the VCU2 are read at the same time;
after the software version is confirmed, the cald and CVN of VCU1 and VCU2 are read simultaneously.
Preferably, the "test data clearing" includes clearing the fault code and the VIN code of the first vehicle control unit VCU1 and the second vehicle control unit VCU2 at the same time.
Preferably, the step 3 specifically includes:
step 31: the control and recording module simultaneously sends a command to the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2, wherein the command requires the first whole vehicle controller VCU1 to drive the channel a1 and the second whole vehicle controller VCU2 to drive the channel b1; the first whole vehicle controller VCU1 immediately drives the channel a1 after receiving the command of the control and recording module, and the second whole vehicle controller VCU2 immediately drives the channel b1 after receiving the command of the control and recording module;
step 32: in a specific time after a command is sent, the second whole vehicle controller VCU2 reads the channel a1 signal, and the first whole vehicle controller VCU1 reads the channel b1 signal and feeds back a reading state signal to the control and recording module; the control and recording module compares whether the command and the feedback signal are consistent, if so, the next group of tests are carried out, and if not, the control and recording module enters a fault reporting mode;
repeating the steps until all signals are detected mutually.
Preferably, the method is based on a control system, the control system comprises a power supply module, the power supply module supplies power to the test interface and the electric appliance module through a power supply cable, and the voltage value is determined according to the power supply requirements of the two tested first whole vehicle controllers VCU1 and the second whole vehicle controllers VCU 2; the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 are connected to the test interface and the electric appliance module through the quick interface 1 and the quick interface 2, and acquire power supply, input signals and temperature signals from the test interface and the electric appliance module, and can control a driving module in the test interface and the electric appliance module; the communication module is connected with the test interface and the electric appliance module through a communication cable, controls and acquires commands and signals of the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2, transmits data back to the control and recording module through the communication cable, and can transmit commands sent by the control and recording module to the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 to realize control.
The beneficial effects of the invention are mainly as follows: the method is used for solving the problems that when a single whole vehicle controller is off line, different tests are carried out for different vehicle types, the detection content is different, the test time is long, the test efficiency is low and the like; meanwhile, an additional driving control module and a data acquisition module are not needed, so that the test tool is reduced and the test cost is reduced while the test efficiency of the whole vehicle controller is ensured. The two whole vehicle controllers related by the invention are not only the tested unit, but also the testing equipment; and simultaneously, the efficiency can be greatly improved by testing.
Drawings
Fig. 1: the invention relates to a schematic diagram of an automatic off-line mutual detection system of a double-whole-vehicle controller in a preferred embodiment.
Fig. 2: the method is a general flow diagram of an off-line automatic mutual measurement method of the double-whole-vehicle controller in the preferred embodiment of the invention.
Fig. 3: a detailed schematic diagram of the step of automatic mutual measurement of the off-line of the double-whole-vehicle controller according to the preferred embodiment of the invention.
Detailed Description
The objects, advantages and features of the present invention are illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of the technical scheme of the invention, and all technical schemes formed by adopting equivalent substitution or equivalent transformation fall within the scope of the invention.
As shown in fig. 1, the invention discloses an automatic mutual test system for the down line of a double-whole-vehicle controller, which comprises a power supply module 1, a test interface and an electric appliance module 2 are powered by a power supply cable 9, and a voltage value is determined according to the power supply requirements of two tested first whole-vehicle controllers VCU1 4 and second whole-vehicle controllers VCU2 6; the first whole vehicle controller VCU1 4 and the second whole vehicle controller VCU2 6 are connected to the test interface and the electric appliance module 2 through the first quick interface 3 and the second quick interface 5, acquire power supply, input signals and temperature signals from the test interface and the electric appliance module 2, and can control a driving module in the test interface and the electric appliance module 2; a communication module 7 is connected to the test interface and the electric appliance module 2 through a communication cable 10, and controls and obtains commands and signals of the first whole vehicle controller VCU1 4 and the second whole vehicle controller VCU2 6 from the communication module, and transmits data back to the control and recording module 8 through the communication cable 11, and meanwhile, commands sent by the control and recording module 8 can be transmitted to the first whole vehicle controller VCU1 4 and the second whole vehicle controller VCU2 6 to achieve control.
As shown in fig. 2 and 3, the off-line automatic mutual measurement method of the dual whole vehicle controller according to the preferred embodiment of the present invention includes the following steps:
step 1: when the system detects the accessed first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 to be tested, the system automatically switches on a power supply;
step 2: after the system initializes and updates the data of the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2, the system reads the corresponding temperature signals and power supply voltage signals,
step 3: starting automatic mutual measurement of the double vehicle controllers;
the control and recording module of the system controls the first whole vehicle controller VCU1 to generate a first input signal, the control and recording module simultaneously controls the second whole vehicle controller VCU2 to generate a second input signal, then the second whole vehicle controller VCU2 reads the first input signal and feeds back the first input signal to the control and recording module, and meanwhile the first whole vehicle controller VCU1 reads the second input signal and feeds back the second input signal to the control and recording module, and the control and recording module receives and then carries out consistency judgment;
repeating the steps;
step 4: after the tested test data of the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 are cleared, the power supply of the system is cut off; and taking down the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 to be tested after delaying for 3 seconds.
The step of initializing and updating data of the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 by the system is specifically as follows:
the system updates bootloader software for the VCU1 and the VCU2 simultaneously according to the requirement of the project;
after successful refreshing, the system updates application software for VCU1 and VCU2 according to the requirement of the project;
after successful refreshing, the software version numbers of the VCU1 and the VCU2 are read at the same time;
after the software version is confirmed, the cald and CVN of VCU1 and VCU2 are read simultaneously.
The test data clearing includes clearing fault codes and VIN codes of the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 at the same time.
The step 3 "the off-line automatic mutual measurement step of the double vehicle controllers" specifically includes:
step 31: VCU1 drives channel a1, VCU2 drives channel b1, send out the driving state signal at the same time;
step 32: VCU2 reads channel a1, VCU1 reads channel b1, send out and read the status signal at the same time;
step 33: VCU1 drives channel a2, VCU2 drives channel b2, send out the driving state signal at the same time;
step 34: VCU2 reads channel a2, VCU1 reads channel b2, send out and read the status signal at the same time;
step …
Step n-1: VCU1 driving channel an, VCU2 driving channel bn, while sending out a driving status signal;
step n: VCU2 reads channel an, VCU1 reads channel bn, and simultaneously issues a read status signal.
And the control and recording module compares whether the command and the feedback signal are consistent (matched), if so, the next group of tests are carried out, and if not, the fault reporting mode is entered.
The invention adopts a method of mutually testing the double vehicle controllers, thereby improving the test efficiency of the vehicle controllers in the off-line state; meanwhile, an additional driving control module and a data acquisition module are not needed, so that the test cost of the whole vehicle controller is reduced; and the testing process is simpler through an automatic testing process.
The invention has various embodiments, and all technical schemes formed by equivalent transformation or equivalent transformation fall within the protection scope of the invention.
Claims (5)
1. A method for automatically testing the off-line of a double-whole-vehicle controller is characterized by comprising the following steps: simultaneously, the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 are tested, comprising the following steps,
step 1: when the system detects the accessed first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 to be tested, the system automatically switches on a power supply;
step 2: the system performs data initialization and update on the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2, and simultaneously reads corresponding temperature signals and power supply voltage signals;
step 3: starting automatic mutual measurement of the double vehicle controllers;
the control and recording module of the system controls the first whole vehicle controller VCU1 to generate a first input signal, the control and recording module simultaneously controls the second whole vehicle controller VCU2 to generate a second input signal, then the second whole vehicle controller VCU2 reads the first input signal and feeds back the first input signal to the control and recording module, and meanwhile the first whole vehicle controller VCU1 reads the second input signal and feeds back the second input signal to the control and recording module, and the control and recording module receives and then carries out consistency judgment;
repeating the steps;
step 4: after the tested test data of the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 are cleared, the power supply of the system is cut off; and taking down the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 to be tested after delaying for 3 seconds.
2. The method according to claim 1, characterized in that: the step of initializing and updating data of the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 by the system is specifically as follows:
the system updates bootloader software for the VCU1 and the VCU2 simultaneously according to the requirement of the project;
after successful refreshing, the system updates application software for VCU1 and VCU2 according to the requirement of the project;
after successful refreshing, the software version numbers of the VCU1 and the VCU2 are read at the same time;
after the software version is confirmed, the cald and CVN of VCU1 and VCU2 are read simultaneously.
3. The method according to claim 1, characterized in that: the test data clearing includes clearing fault codes and VIN codes of the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2 at the same time.
4. The method according to claim 1, characterized in that: the step 3 specifically includes:
step 31: the control and recording module simultaneously sends a command to the first whole vehicle controller VCU1 and the second whole vehicle controller VCU2, wherein the command requires the first whole vehicle controller VCU1 to drive the channel a1 and the second whole vehicle controller VCU2 to drive the channel b1; the first whole vehicle controller VCU1 immediately drives the channel a1 after receiving the command of the control and recording module, and the second whole vehicle controller VCU2 immediately drives the channel b1 after receiving the command of the control and recording module;
step 32: in a specific time after a command is sent, the second whole vehicle controller VCU2 reads the channel a1 signal, and the first whole vehicle controller VCU1 reads the channel b1 signal and feeds back a reading state signal to the control and recording module; the control and recording module compares whether the command and the feedback signal are consistent, if so, the next group of tests are carried out, and if not, the control and recording module enters a fault reporting mode;
repeating the steps until all signals are detected mutually.
5. The method according to claim 1, characterized in that: based on a control system, the control system comprises a power supply module (1), a test interface and an electric appliance module (2) are powered through a power supply cable (9), and a voltage value is determined according to power supply requirements of two tested first whole vehicle controllers VCU1 (4) and second whole vehicle controllers VCU2 (6); the first whole vehicle controller VCU1 (4) and the second whole vehicle controller VCU2 (6) are connected to the test interface and the electric appliance module (2) through the quick interface 1 (3) and the quick interface 2 (5), and acquire power supply, input signals and temperature signals from the test interface and the electric appliance module (2), and can control a driving module in the test interface and the electric appliance module (2); a communication module (7) is connected with the test interface and the electric appliance module (2) through a communication cable (10), controls and acquires commands and signals of the first whole vehicle controller VCU1 (4) and the second whole vehicle controller VCU2 (6) from the communication module, transmits data back to the control and recording module (8) through a communication cable (11), and can transmit commands sent by the control and recording module (8) to the first whole vehicle controller VCU1 (4) and the second whole vehicle controller VCU2 (6) to realize control.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210923060.5A CN117539212A (en) | 2022-08-02 | 2022-08-02 | Off-line automatic mutual detection method for double-whole-vehicle controller |
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| CN202210923060.5A CN117539212A (en) | 2022-08-02 | 2022-08-02 | Off-line automatic mutual detection method for double-whole-vehicle controller |
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| CN202210923060.5A Pending CN117539212A (en) | 2022-08-02 | 2022-08-02 | Off-line automatic mutual detection method for double-whole-vehicle controller |
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