CN103412266A - Device for testing performance of automotive power supply - Google Patents
Device for testing performance of automotive power supply Download PDFInfo
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- CN103412266A CN103412266A CN2013103692739A CN201310369273A CN103412266A CN 103412266 A CN103412266 A CN 103412266A CN 2013103692739 A CN2013103692739 A CN 2013103692739A CN 201310369273 A CN201310369273 A CN 201310369273A CN 103412266 A CN103412266 A CN 103412266A
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Abstract
The invention discloses a device for testing the performance of an automotive power supply. The device comprises a control management module and an upper computer. The control management module comprises a current acquisition module, a voltage acquisition module, a temperature acquisition module, a control module, a storage module, a communication module and a clock management module. The far-end current acquisition module, the far-end voltage acquisition module and the far-end temperature acquisition module conduct data transmission with a current distance receiving module, a voltage distance receiving module and a temperature distance receiving module in the control management module respectively through a current distance output module, a voltage distance output module and a temperature distance output module. According to the device, a static performance test can be rapidly and conveniently conducted on the automotive power supply, data of the dynamic performance of the automotive power supply can be transmitted in a distance mode and monitored in the automobile driving process, a large-volume data storage device is adopted, and the data are sent to the upper computer in real time for storage.
Description
Technical field
The present invention relates to a kind of device of measuring power source performance, especially a kind of both measuring vehicle quiescent current, voltage, temperature, but the power supply on vehicle performance testing device of measuring vehicle dynamic current, voltage, temperature again.
Background technology
In development phase, trouble hunting and the normal maintenance process of vehicle, monitor accurately, easily in real time, electric current, the change in voltage of car battery, can the electric current of monitoring car electrical appliance, change in voltage, monitor the temperature variation in internal heat generation district, cabin and monitor various automobile controllers and according to the setting working method, work and have great importance.
But traditional vehicle power supply performance test is generally static test, not dynamic current, voltage, the temperature signal test of support unit in travelling is that CN102874190A, denomination of invention are the patent application patent of power supply on vehicle intellectualized management system and method as publication No..Dynamic current, voltage, temperature value during while people testing vehicle outside car travels need to guarantee the extremely slow operating mode of the speed of a motor vehicle that this may cause the power source performance under many operating modes not monitor.
And traditional plug-in type battery driven vehicle voltage and current signal pick-up unit can only sample from accumulator, as Granted publication number, be called a kind of utility model patent of plug-in type battery driven vehicle voltage and current signal pick-up unit for CN202362434U, utility model name.
Last vehicular equipment memory capacity is little, and storage data that can't be a large amount of, cause the generation of loss of data.
Summary of the invention
The present invention is for solving the technical matters existed in prior art, and a kind of both measuring vehicle quiescent current, voltage, temperature are provided, but the power supply on vehicle performance testing device of measuring vehicle dynamic current, voltage, temperature again.
The technical scheme that the present invention takes for the technical matters existed in the solution prior art is:
A kind of power supply on vehicle performance testing device, comprise control and management module and the demonstration of collection deal with data and monitor the host computer through the data of control and management module analysis; Wherein control and management module comprises the current acquisition module that gathers current signal, gather the voltage acquisition module of voltage signal, the temperature collect module of collecting temperature signal, with current acquisition module, voltage acquisition module and temperature collect module, be connected and the control module of the data that collect of analyzing and processing, and be used for the memory module of data after the storage control module analysis; Described vehicle-mounted far-end current acquisition module, far-end voltage acquisition module and far-end temperature collect module carry out data transmission by the electric current distance reception module in the remote output module of electric current, the remote output module of voltage and the remote output module of temperature and control and management module, voltage distance reception module and temperature distance reception module respectively, and electric current distance reception module, voltage distance reception module and temperature distance reception module are connected with control module.
The voltage signal that described far-end current acquisition module, far-end voltage acquisition module and far-end temperature collect module collect is converted to frequency signal by the remote output module of electric current, the remote output module of voltage and the remote output module of temperature respectively, and after by twisted-pair feeder, frequency signal being transferred to electric current distance reception module, voltage distance reception module and the temperature distance reception module in the control and management module, frequency signal is converted to voltage signal and is transferred to control module.
The described memory module be connected with control module comprises the SD card memory module and the USB memory module that is connected USB interface that connects the SD card interface.
Described host computer carries out data transmission by the communication module in the control and management module and control module, and the data analysis of host computer display monitoring control module.
The described communication module be connected with control module comprises the RS232 Serial Transmission Module and the USB transport module that is connected USB interface that connects the RS232 serial line interface.
Described RS232 serial line interface is connected with host computer respectively with USB interface.
Described control module also is connected with the Clock management module.
Described power supply on vehicle performance testing device is connected to the enterprising row data sampling of two both positive and negative polarity wire columns of accumulator by the accumulator special connector; By vehicular electrical appliance relay box band special line inserted sheet, be connected to the vehicular electrical appliance relay box and carry out data sampling; By Hall element, be connected to the enterprising row data sampling of car load wire harness.
Advantage and good effect that the present invention has are:
Power supply on vehicle performance testing device of the present invention can carry out dynamic performance testing to power supply on vehicle quickly and easily, but the data of while long-distance transmissions dynamic monitoring power supply on vehicle performance in Vehicle Driving Cycle, and the employing Mass Data Storage Facility, and by serial line interface or USB interface, in real time data are sent to host computer and carry out the data storage.
The accompanying drawing explanation
Fig. 1 is system principle block scheme of the present invention.
Embodiment
The present invention will be described in detail referring to drawings and Examples.
As shown in Figure 1, power supply on vehicle performance testing device of the present invention comprises far-end current acquisition module, far-end voltage acquisition module and the far-end temperature collect module of far-end image data, and the remote output module of the electric current that carries out data transmission, the remote output module of voltage and the remote output module of temperature, also have and receive the also control and management module of deal with data.Wherein, the control and management module comprises the control module be connected respectively with current acquisition module, voltage acquisition module, temperature collect module, electric current distance reception module, voltage distance reception module and temperature distance reception module, and control module also is connected with Clock management module, memory module and communication module.Memory module comprises the SD card memory module and the USB memory module that is connected USB interface that connects the SD interface; Communication module comprises the RS232 Serial Transmission Module and the USB transport module that is connected USB interface that connects the RS232 serial line interface.
What described control module adopted is the Freescale(Freescale) the MC9S12XEP100MAL single-chip microcomputer of 16.
Described current acquisition module can be connected accumulator, relay box with the input end of far-end current acquisition module, can also connect each controller in car load wire harness or car.The current acquisition module is converted to voltage signal by the multichannel current signal that current sample chip AD8218 will collect, and the current acquisition module has the current detecting scope of 1.25A ~ 625A, this voltage signal becomes digital signal to be directly passed to control module analog signal conversion after AD conversion chip AD7689.Far-end current acquisition module is converted to voltage signal by the multichannel current signal that current sample chip AD8218 will collect, and the current acquisition module has the current detecting scope of 1.25A ~ 625A, this voltage signal passes to remote output module, and carries out Long-range Data Transmission with the distance reception module of link control module.
The input end of described voltage acquisition module and far-end voltage acquisition module can be connected accumulator, relay box, can also connect each controller in car load wire harness or car.The voltage sample unit is transformed in 5V by the plurality of voltages signal that the mimic channel dividing potential drop will collect, then the voltage signal after changing becomes digital signal to be directly passed to control module analog signal conversion after AD conversion chip AD7689.The far-end voltage acquisition module is transformed in 5V by the plurality of voltages signal that the mimic channel dividing potential drop will collect, and this voltage signal is passed to remote output module, and carries out Long-range Data Transmission with the distance reception module of link control module.
Described temperature collect module and far-end temperature collect module adopt temperature sampling chip DS18B20, and it is arranged on to the hot zone of nacelle.The signal that temperature collect module will collect by thermopair is input to High Accuracy Thermocouple Temperature amplifier AD8497, then the signal after amplifying becomes digital data transmission to control module analog signal conversion after AD conversion chip AD7689.The output terminal of far-end temperature collect module can be connected to remote output module, the digital temperature signal collected is transferred to control module and carries out analyzing and processing;
Described remote output module be by AD652 by collection in worksite to analog voltage signal be converted to frequency signal, the frequency of this output frequency signal is directly proportional to the size of input voltage, by twisted-pair feeder, this frequency signal is transferred to the distance reception module of far-end.Described distance reception module is to be converted to voltage signal by the frequency signal that AD652 will receive, and is transferred to control module.
Described memory module includes the SD card memory module that connects SD card (Secure Digital Memory Card, safe digital card) interface and is connected USB(Universal Serial Bus, USB (universal serial bus)) the USB memory module of interface.SD card memory module adopts SPI(Serial Peripheral Interface, Serial Peripheral Interface) transmission mode and control module are carried out data transmission, and the bi-directional transceiver by 74LVC4245A scale-of-eight dual power supply completes the level match between SD card and control module.The mimic channel that the USB memory module is built by LM393 is realized the data transmission between USB flash disk and control module, realizes memory function.
Described communication module includes the RS232 Serial Transmission Module and the USB transport module that is connected USB interface that connects the RS232 serial line interface.The RS232 Serial Transmission Module completes the level conversion between RS232 interface and control module by MAX232, realizes that host computer carries out data transmission by RS232 interface and control module.The common apparatus interface chip CH372 of USB transport module by the USB bus completes control module and is connected with the data transmission between the host computer of USB interface.
Described Clock management module is recorded to data file by test period, with host computer, is connected in series mouthful by RS232 or USB interface while being connected, can be according to the clock automatic adjustment system clock of host computer.
Power supply on vehicle performance testing device of the present invention can be realized electric current, the change in voltage of static state, dynamic monitoring vehicle battery and engine power supply easily; Realize static state, the electric current of dynamic monitoring vehicular electrical appliance, change in voltage; Realize that can static, the various automobile controllers of dynamic monitoring work according to setting working method; Realize temperature variation static, internal heat generation district, dynamic monitoring cabin.
Its input end of power supply on vehicle performance testing device is connected to accumulator, and the supply voltage that accumulator is provided carries out voltage stabilizing, filtering is processed, and 5V, 2.5 V and stable working power and the reference voltage of 1.25V are provided.
The power supply on vehicle performance testing device is by different special purpose interfaces, the data messages such as the electric current of collection vehicle diverse location power supply, voltage.Use the accumulator special connector, as crocodile clip, be connected to the enterprising row data sampling of two both positive and negative polarity wire columns of accumulator; Use vehicular electrical appliance relay box band special line inserted sheet to carry out data sampling for the vehicular electrical appliance relay box; Use Hall element to carry out data sampling for arbitrary portion on the car load wire harness.
The data message that current acquisition module, voltage acquisition module and temperature collect module collect from vehicle, can be directly passed to control module; Far-end current acquisition module, far-end voltage acquisition module and far-end temperature collect module can by collection in worksite to analog voltage signal by remote output module, be converted to frequency signal, by twisted-pair feeder, this frequency signal is transferred to the distance reception module of far-end, and will after frequency signal switch analog voltages signal, passes to control module.
What control module adopted is the MC9S12XEP100MAL single-chip microcomputer of a 16 of Freescale MC9S12 series, the single-chip microcomputer per second of 16 can carry out 65536 computings, and the single-chip microcomputer per second of 8 only carries out 256 computings, therefore adopt 16 single-chip microcomputers can improve travelling speed and the data processing speed of whole system; Utilize simultaneously the XGATE in Freescale MC9S12XEP100 to carry out data acquisition process, XGATE is located in quick-speed interruption and processes, can reduce the interruptible load of host CPU, execution by interrupt routine is to reach the purpose of moving simultaneously with host CPU, improve the operational efficiency of host CPU, improve application response speed.
The current data that the control module analyzing and processing collects, voltage data and temperature data.The control module basis is the testing requirement of host computer reality at that time, the valid data that will collect when carrying out corresponding the collection carry out corresponding storage comparison according to different classes of storage mode according to the host computer appointment, and show in real time the curvilinear figure data at host computer.
Control module is to storage unit and host computer secured transmission of payload data simultaneously.In order to increase the capacity of memory module, adopt SD to stick into capable data storage, can store at most the data capacity of 16G, or carry out the data storage by USB, guaranteed the reliability of data storages.Can also directly monitor the data message collected by on-the-spot host computer, also the data of collection can be transferred to the host computer of far-end by communication module.By serial line interface or USB interface, in real time data are sent to host computer and carry out the data storage; The proportion signal carries out the antijamming capability that long-distance transmissions can strengthen signal significantly; Can reduce to greatest extent loss of signal and distortion, facilitate the Remote Dynamic test.Can choose according to actual needs one of two kinds of interface modes communication task of completion system and host computer quickly and easily wantonly.
Before test, can the correlation test information such as test man number, license plate number, content measurement be sent in the power supply on vehicle performance testing device by host computer, so that corresponding test man operates accordingly, can carry out static test, also can carry out dynamic test, data are processed fast, test data is accurate, can effectively reduce the labour intensity of testing crew, increases work efficiency.
In the vehicle development stage, can utilize the power supply on vehicle performance testing device to collect static data information and the dynamic data information of various electric currents, voltage, temperature, shorten the vehicle development schedule.
Help to get rid of fast the various faults that vehicle is relevant with power supply, improve car inspection and repair efficiency.
The present invention is simple in structure, is easy to carry, and convenient test, applied range, be not subjected to using area and environmental limit, and reliability is high, and accuracy of detection is high, can effectively solve existing vehicle voltage, current detecting inconvenience, the not high multiple practical problems of intelligent degree.And the vehicle voltage current sensing means that belongs to a kind of socket connection, can be as required, by connector, connect fast measured body at any time, voltage and current signal is detected, the dismounting that need not carry out structure, wire etc. changes establishes, simple to operate, realize fast detecting, increases work efficiency, for the monitoring vehicle system state, tracing trouble provides foundation.
Claims (9)
1. a power supply on vehicle performance testing device, comprise control and management module and the demonstration of collection deal with data and monitor the host computer through the data of control and management module analysis; Wherein control and management module comprises the current acquisition module that gathers current signal, gather the voltage acquisition module of voltage signal, the temperature collect module of collecting temperature signal, with current acquisition module, voltage acquisition module and temperature collect module, be connected and the control module of the data that collect of analyzing and processing, and be used for the memory module of data after the storage control module analysis; It is characterized in that: vehicle-mounted far-end current acquisition module, far-end voltage acquisition module and far-end temperature collect module carries out data transmission by the electric current distance reception module in the remote output module of electric current, the remote output module of voltage and the remote output module of temperature and control and management module, voltage distance reception module and temperature distance reception module respectively, and electric current distance reception module, voltage distance reception module and temperature distance reception module are connected with control module.
2. power supply on vehicle performance testing device according to claim 1, it is characterized in that: far-end current acquisition module, the voltage signal that far-end voltage acquisition module and far-end temperature collect module collect is respectively by the remote output module of electric current, the remote output module of voltage and the remote output module of temperature are converted to frequency signal, and by twisted-pair feeder, frequency signal is transferred to the electric current distance reception module in the control and management module, after voltage distance reception module and temperature distance reception module, frequency signal is converted to voltage signal and is transferred to control module.
3. power supply on vehicle performance testing device according to claim 1 is characterized in that: the memory module be connected with control module comprises the SD card memory module and the USB memory module that is connected USB interface that connects the SD card interface.
4. power supply on vehicle performance testing device according to claim 1, it is characterized in that: host computer carries out data transmission by the communication module in the control and management module and control module, and the data analysis of host computer display monitoring control module.
5. power supply on vehicle performance testing device according to claim 4 is characterized in that: the communication module be connected with control module comprises the RS232 Serial Transmission Module and the USB transport module that is connected USB interface that connects the RS232 serial line interface.
6. power supply on vehicle performance testing device according to claim 5, it is characterized in that: the RS232 serial line interface is connected with host computer respectively with USB interface.
7. power supply on vehicle performance testing device according to claim 1, it is characterized in that: control module also is connected with the Clock management module.
8. power supply on vehicle performance testing device according to claim 1 is characterized in that: the power supply on vehicle performance testing device is connected to the enterprising row data sampling of two both positive and negative polarity wire columns of accumulator by the accumulator special connector; By vehicular electrical appliance relay box band special line inserted sheet, be connected to the vehicular electrical appliance relay box and carry out data sampling; By Hall element, be connected to the enterprising row data sampling of car load wire harness.
9. power supply on vehicle performance testing device according to claim 1, is characterized in that: the MC9S12XEP100MAL single-chip microcomputer that control module employing Freescale is 16.
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| CN2013103692739A CN103412266A (en) | 2013-08-21 | 2013-08-21 | Device for testing performance of automotive power supply |
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| CN2013103692739A CN103412266A (en) | 2013-08-21 | 2013-08-21 | Device for testing performance of automotive power supply |
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| CN105509912A (en) * | 2015-12-15 | 2016-04-20 | 赵晓玲 | Vehicle-mounted battery safety detection system applied to electric vehicle |
| CN108918956A (en) * | 2018-05-17 | 2018-11-30 | 安徽亚智电气有限公司 | Voltage signal acquisition analysis system |
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Effective date of registration: 20151230 Address after: 130011 Changchun Province, West New Economic and Technological Development Zone, Dongfeng Street, No. 2259, No. Applicant after: China FAW Group Corporation Address before: 300380 No. 578 Fu Jing Road, Xiqing District, Tianjin Applicant before: Tianjin Faw Xiali Automobile Co., Ltd. Applicant before: China FAW Group Corporation |
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Application publication date: 20131127 |
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