CN112284755A - Test method for load shedding of electric appliance of whole vehicle in real vehicle environment - Google Patents
Test method for load shedding of electric appliance of whole vehicle in real vehicle environment Download PDFInfo
- Publication number
- CN112284755A CN112284755A CN202011051966.XA CN202011051966A CN112284755A CN 112284755 A CN112284755 A CN 112284755A CN 202011051966 A CN202011051966 A CN 202011051966A CN 112284755 A CN112284755 A CN 112284755A
- Authority
- CN
- China
- Prior art keywords
- electric
- load shedding
- whole vehicle
- electric appliance
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a test method for load shedding of an electric appliance of a whole vehicle in a real vehicle environment. According to the test method, under the real vehicle environment, the load throwing waveform of the generator under multiple working conditions and the function state inspection of the electric appliance after the load throwing are respectively collected, the load throwing voltage characteristic of the electric appliance can be obtained and compared and analyzed with the ISO16750-2 standard, the electric appliance damage caused by the impact of the load throwing voltage when the load throwing phenomenon of the automobile occurs is avoided, and the stability and the driving safety of a power supply system are ensured.
Description
Technical Field
The invention relates to the technical field of automobile testing, in particular to a method for testing the load shedding of an electric appliance of a whole automobile in a real automobile environment.
Background
With the development of society, the popularization degree and the use frequency of automobiles are higher and higher. Along with the development of science and technology, the electrical equipment of the vehicle is increased day by day, the electrical integration level is higher and higher, and the working environment of the automotive electrical equipment is worse. It is therefore necessary that the vehicle electrical components have sufficient resistance to interference and shock, in particular the typical voltage pulses that are likely to occur in a real vehicle environment, such as load rejection pulses: when the load throwing phenomenon of the automobile is generated: almost all electrical appliances connected directly to the battery are subjected to the impact of dump load voltages. If the positive pulse peak value is too large, the electric appliance can be damaged; meanwhile, key devices of the generator rectifier are easy to break down, and the service life of the generator is shortened. The stability, the driving safety and the driving safety of the automobile power supply system are seriously influenced. At present, in the real vehicle environment, the state has no test method for determining the load throwing of the whole vehicle according to the clear relevant standards.
Disclosure of Invention
The invention aims to provide a test method for load shedding of a whole vehicle electrical appliance in a real vehicle environment, which can visually compare the reliability of load shedding protection of the whole vehicle electrical appliance, is beneficial to an engineer to select correct devices and guarantees the stability of a power supply system.
The invention provides a method for testing the load shedding of an electric appliance of a whole vehicle under a real vehicle environment, which is characterized by comprising the following steps of:
A. preparation of the test: preparing a test vehicle, wherein all electric devices of the test vehicle are required to be normal in function, and the alternating current generator is required to be normal in function;
B. a voltage probe of the data acquisition device is connected with the positive and negative terminals of the storage battery to start data acquisition;
C. when the whole vehicle idles, all electric devices of the whole vehicle are turned on;
D. adjusting the rotating speed of the engine to a first set value and keeping the rotating speed stable;
E. disconnecting the positive terminal of the storage battery, observing and storing the voltage waveform acquired by the data acquisition device at the moment;
F. sequentially closing the electric devices in the step C according to a calibration sequence, and observing and storing the voltage waveform acquired by the data acquisition device when one electric device is closed;
G. connecting the positive terminal of the storage battery again, checking the functional state of the electric device, and recording the functional state result of the electric device;
H. adjusting the engine speed in the step D to other set values, and repeating the step C, D, E, F, G;
I. and D, comparing the voltage waveforms collected in the step E and the step F with the voltage waveforms collected in the standard ISO16750-2 load shedding waveform.
According to the method for testing the load rejection of the electric appliance of the whole vehicle in the real vehicle environment, the load rejection waveform of the generator under multiple working conditions and the functional state inspection of the electric appliance after the load rejection are respectively acquired under the real vehicle environment, so that the voltage characteristic of the load rejection of the electric appliance can be acquired and compared with the ISO standard for analysis, the electric appliance damage caused by the impact of the load rejection voltage when the load rejection phenomenon of the vehicle occurs is avoided, and the stability of a power supply system and the driving safety are ensured.
Further, the electric device comprises a far and near light lamp, a position lamp, a fog lamp, a danger alarm lamp, a top lamp, a brake lamp, a sound box, an air conditioner, a rear defrosting mode, a front wiper and a rear wiper high speed mode, four-door window lifting, a skylight, electric power steering, a cooling fan, electric seat adjustment and a loudspeaker.
Further, in the step B, before the battery is connected to the voltage probe, the SOC value of the battery is adjusted to an SOC calibration value. Preferably, the SOC is set to a nominal value of 30%.
Further, the first set value of the step D is 1500, and the other set values of the step H include 5 set values of 2000, 2500, 3000, 3500 and 4000.
Further, all the electric devices are 12V or 24V power supply devices of the whole vehicle, and the standard load throwing waveform is an ISO16750-2 load throwing waveform.
Further, the ambient temperature of the test of the present invention was room temperature.
Detailed Description
The following describes embodiments of the present invention, such as shapes and structures of the respective members, mutual positions and connection relationships between the respective portions, and operations and operating principles of the respective portions, in further detail.
The invention discloses a test method for load shedding of an electric appliance of a whole vehicle in a real vehicle environment, which comprises the following steps:
A. preparation of the test: preparing a test vehicle, wherein all electric devices of the test vehicle are required to be normal in function, and the alternating current generator is required to be normal in function; adjusting the SOC value of the storage battery to a set value of 30% to enable the storage battery to be in a power-deficient state;
B. a voltage probe of the data acquisition device is connected with the positive and negative terminals of the storage battery, a monitoring section of the data acquisition device is opened, relevant parameters of the data acquisition device are set, and an operation button is clicked to start data acquisition; the data acquisition device CAN select CAN bus data recorders such as busLOG-ET and the like;
C. under the room temperature environment, the whole vehicle idles, and the common high beam and low beam lamps, the position lamps, the fog lamps, the danger alarm lamps, the ceiling lamps, the brake lamps, the sound, the air conditioner, the rear defrosting, the front windscreen wiper and the rear windscreen wiper are high-speed, the four-door window is lifted, the skylight is arranged, the electric power steering is arranged, the cooling fan is arranged, the electric seat is adjusted, and the loudspeaker is arranged.
For the electric devices with power, the power of the electric devices is adjusted to be the maximum, namely the sound volume is the maximum, the air conditioning refrigeration air volume is the maximum, and if the electric devices are windscreen wipers with gears, the gears are adjusted to be the maximum power gears;
D. adjusting the rotating speed of the engine to 1500 and keeping the rotating speed stable;
E. disconnecting the positive terminal of the storage battery, observing and storing the voltage waveform acquired by the data acquisition device at the moment;
F. the method comprises the following steps of sequentially turning off a high beam and a low beam, a position lamp, a fog lamp, a danger alarm lamp, a ceiling lamp, a brake lamp, a sound box, an air conditioner, rear defrosting, high-speed front and rear windscreen wipers, lifting of four vehicle windows, a skylight, electric power steering, a cooling fan, electric seat adjustment and a loudspeaker. Observing and storing the voltage waveform acquired by the data acquisition device when one electric device is turned off;
G. connecting the positive terminal of the storage battery again, checking the functional state of the electric device, and recording the functional state result of the electric device;
H. regulating the engine speed to 2000, 2500, 3000, 3500 and 4000 in sequence, and repeating C, D, E, F, G;
I. and (4) comparing the voltage waveforms collected in the step (E) and the step (F) with the ISO16750-2 load throwing waveform for analysis.
The invention has been described in an illustrative manner, and it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description, but is to be construed in all respects as illustrative and not restrictive, and all changes that come within the spirit and scope of the invention are desired to be protected.
Claims (8)
1. A test method for load shedding of an electric appliance of a whole vehicle in a real vehicle environment is characterized by comprising the following steps:
A. preparation of the test: preparing a test vehicle, wherein all electric devices of the test vehicle are required to be normal in function, and the alternating current generator is required to be normal in function;
B. a voltage probe of the data acquisition device is connected with the positive and negative terminals of the storage battery to start data acquisition;
C. when the whole vehicle idles, all electric devices of the whole vehicle are turned on;
D. adjusting the rotating speed of the engine to a first set value and keeping the rotating speed stable;
E. disconnecting the positive terminal of the storage battery, observing and storing the voltage waveform acquired by the data acquisition device at the moment;
F. c, sequentially closing the electric devices in the step C according to a set sequence, and observing and storing the voltage waveform acquired by the data acquisition device when one electric device is closed;
G. connecting the positive terminal of the storage battery again, checking the functional state of the electric device, and recording the functional state result of the electric device;
H. adjusting the engine speed in the step D to other set values, and repeating the step C, D, E, F, G;
I. and comparing the voltage waveforms collected in the step E and the step F with the IS016750=2 standard load-throwing waveform for analysis.
2. The method for testing the load shedding of the electric appliance of the whole vehicle in the real vehicle environment according to claim 1, wherein the electric appliance comprises a high beam, a low beam, a position lamp, a fog lamp, a danger alarm lamp, a ceiling lamp, a brake lamp, a sound box, an air conditioner, a rear defrosting, a front wiper, a rear wiper, a four-door window lifting, a skylight, an electric power steering, a cooling fan, an electric seat adjusting and a horn.
3. The test method for load shedding of the electric appliances of the whole vehicle under the real vehicle environment according to claim 1, wherein in the step B, the SOC value of the storage battery is adjusted to the SOC set value before the storage battery is connected with the voltage probe.
4. The method for testing the load shedding of the electric appliance of the whole vehicle in the real vehicle environment according to claim 3, wherein the SOC set value is 30%.
5. The method for testing the load shedding of the electric appliance of the whole vehicle in the real vehicle environment according to claim 3 or 4, wherein the SOC value of the storage battery is adjusted to the SOC set value through storage battery charging and discharging equipment.
6. The test method for load shedding of the electric appliances of the whole vehicle under the real vehicle environment according to claim 1, wherein the first set value of the step D is 1500, and the other set values of the step H include 5 fixed values of 2000, 2500, 3000, 3500 and 4000.
7. The method for testing load shedding of electric appliances of the whole vehicle under the real vehicle environment according to claim 1, 2, 3, 4 or 6, wherein all the electric appliances are power supply appliances of 12V or 24V of the whole vehicle, and the standard load shedding waveform is ISO16750-2 load shedding waveform.
8. The method for testing the load shedding of the electric appliance of the whole vehicle under the environment of the real vehicle as claimed in claim 1, 2, 3, 4 or 6, wherein the environmental temperature of the test is room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011051966.XA CN112284755A (en) | 2020-09-29 | 2020-09-29 | Test method for load shedding of electric appliance of whole vehicle in real vehicle environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011051966.XA CN112284755A (en) | 2020-09-29 | 2020-09-29 | Test method for load shedding of electric appliance of whole vehicle in real vehicle environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112284755A true CN112284755A (en) | 2021-01-29 |
Family
ID=74422300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011051966.XA Pending CN112284755A (en) | 2020-09-29 | 2020-09-29 | Test method for load shedding of electric appliance of whole vehicle in real vehicle environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112284755A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04235357A (en) * | 1991-01-10 | 1992-08-24 | Fuji Electric Co Ltd | Load-dump testing apparatus for electronic device |
| CN201527718U (en) * | 2009-05-26 | 2010-07-14 | 谭本忠 | Whole-vehicle electric practical-training device |
| CN102508163A (en) * | 2011-11-25 | 2012-06-20 | 中联重科股份有限公司 | Method, system and device for detecting load dump of portable generator |
| CN108196145A (en) * | 2017-12-22 | 2018-06-22 | 台州市路桥豪达汽车电器有限公司 | Automobile electric performance test method and system |
| CN109142930A (en) * | 2018-09-02 | 2019-01-04 | 华域视觉科技(上海)有限公司 | Headlamp LED drive module design and verification method |
| CN109239483A (en) * | 2018-07-30 | 2019-01-18 | 北京长城华冠汽车科技股份有限公司 | A kind of the high pressure throw load test macro and test method of electric car |
| CN209513964U (en) * | 2018-10-19 | 2019-10-18 | 北京经纬恒润科技有限公司 | A kind of new-energy automobile high pressure throw load test macro |
| CN111337265A (en) * | 2018-12-18 | 2020-06-26 | 上汽通用汽车有限公司 | CAN-based automatic test method and system for electric appliance components of whole vehicle |
| CN111443249A (en) * | 2020-03-30 | 2020-07-24 | 徐州徐工汽车制造有限公司 | High-precision automobile load rejection test system based on network communication |
-
2020
- 2020-09-29 CN CN202011051966.XA patent/CN112284755A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04235357A (en) * | 1991-01-10 | 1992-08-24 | Fuji Electric Co Ltd | Load-dump testing apparatus for electronic device |
| CN201527718U (en) * | 2009-05-26 | 2010-07-14 | 谭本忠 | Whole-vehicle electric practical-training device |
| CN102508163A (en) * | 2011-11-25 | 2012-06-20 | 中联重科股份有限公司 | Method, system and device for detecting load dump of portable generator |
| CN108196145A (en) * | 2017-12-22 | 2018-06-22 | 台州市路桥豪达汽车电器有限公司 | Automobile electric performance test method and system |
| CN109239483A (en) * | 2018-07-30 | 2019-01-18 | 北京长城华冠汽车科技股份有限公司 | A kind of the high pressure throw load test macro and test method of electric car |
| CN109142930A (en) * | 2018-09-02 | 2019-01-04 | 华域视觉科技(上海)有限公司 | Headlamp LED drive module design and verification method |
| CN209513964U (en) * | 2018-10-19 | 2019-10-18 | 北京经纬恒润科技有限公司 | A kind of new-energy automobile high pressure throw load test macro |
| CN111337265A (en) * | 2018-12-18 | 2020-06-26 | 上汽通用汽车有限公司 | CAN-based automatic test method and system for electric appliance components of whole vehicle |
| CN111443249A (en) * | 2020-03-30 | 2020-07-24 | 徐州徐工汽车制造有限公司 | High-precision automobile load rejection test system based on network communication |
Non-Patent Citations (2)
| Title |
|---|
| 何筱荣 等: ""整车抛负载测试与评价"", 《电子制作》 * |
| 白树立: ""整车电子电器性能测试介绍"", 《汽车零部件》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2781390Y (en) | Vehicle loading short circuit, open circuit predetection circuit | |
| US20120191294A1 (en) | Method for diagnosing the operation of a device for cutting off and connecting a battery from/to the onboard power network of a motor vehicle | |
| CN108279373A (en) | Method and device for detecting charging switch of electric automobile | |
| JP2000098008A (en) | Device and method for monitoring and displaying state, of on-vehicle battery | |
| US11175341B2 (en) | Method and arrangment for classifying a voltage fault condition in an electrical storage system | |
| US20160103188A1 (en) | Method for monitoring the state of a battery in a motor vehicle | |
| US20160025789A1 (en) | Harness anomaly detection systems and methods | |
| WO2006019360A1 (en) | Method and system for determining the soc of a rechargeable battery | |
| CN203786271U (en) | Device for testing state of charge (SOC) of electric automobile battery pack | |
| CN105620304A (en) | Battery pack thermal buckling monitoring device and electric vehicle | |
| CN115091957A (en) | Device and method for diagnosing contact state of high-voltage upper and lower electric contactors and vehicle | |
| CN112284755A (en) | Test method for load shedding of electric appliance of whole vehicle in real vehicle environment | |
| CN105510839B (en) | Battery insulation measuring circuit of electric automobile | |
| CN210133011U (en) | Intelligent high-voltage distribution box and vehicle | |
| CN115284881A (en) | Fault diagnosis system based on new energy automobile low-voltage power supply system | |
| CN1333262C (en) | Judging method of electromobile car battery discharging termination bused on small wave transformation | |
| CN116500465A (en) | Method and system for realizing battery monitoring based on automobile battery parameters | |
| CN108819732B (en) | BMS hardware function test system | |
| CN203798990U (en) | Charge state detection device of power battery pack of electromobile | |
| CN115061448A (en) | Whole vehicle static current testing method under rain working condition | |
| CN113406486B (en) | Relay detection circuit, relay detection method, relay, power system and automobile | |
| CN205292321U (en) | Hot unstability monitoring devices of group battery and electric automobile | |
| CN114994445A (en) | New forms of energy electric automobile simulation test cabinet that ages | |
| CN109449506B (en) | Battery pack evaluation system of electric automobile | |
| CN106324515B (en) | Method for detecting performance of automobile storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210129 |
|
| RJ01 | Rejection of invention patent application after publication |