CN108107784A - A kind of vehicle cold starting data acquisition device, system and method - Google Patents
A kind of vehicle cold starting data acquisition device, system and method Download PDFInfo
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- CN108107784A CN108107784A CN201711384371.4A CN201711384371A CN108107784A CN 108107784 A CN108107784 A CN 108107784A CN 201711384371 A CN201711384371 A CN 201711384371A CN 108107784 A CN108107784 A CN 108107784A
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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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/21—Pc I-O input output
- G05B2219/21137—Analog to digital conversion, ADC, DAC
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25252—Microprocessor
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2612—Data acquisition interface
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2637—Vehicle, car, auto, wheelchair
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of vehicle cold starting data acquisition device, system and method, the data acquisition device includes：Acquisition signal for gathering the relevant parameter of vehicle low-temperature cool starting, and is sent into filter shape unit by data acquisition unit；Filter shape unit after the signal for being gathered to the data acquisition unit is filtered Shape correction, is sent into data processing unit；Data processing unit is converted into digital signal for the analog signal crossed through the filter shape cell processing to be carried out processing, and passes through interface unit and be sent to host computer；Interface unit for treated that digital signal is sent to host computer by the data processing unit, by the present invention, can reduce the error of vehicle low-temperature test, improve the accuracy and personnel's efficiency of the experiment of vehicle cold-starting.
Description
Technical field
The present invention relates to a kind of data acquisition device, system and method, more particularly to a kind of vehicle cold starting number
According to harvester, system and method.
Background technology
When vehicle cold-starting is tested, the operating process of startup may only have short several seconds, and at this several seconds
It generally requires to record multiple parameters simultaneously, a kind of current main scheme is to connect vehicle OBD (On-Board by computer
Diagnostic, onboard diagnostic system) interface, reads in ECU (Electronic Control Unit, electronic control unit)
Data, but drive a vehicle ECU do not carry out measurement and calibration, the data read in this way can not be used as detect data provide examination
Report is tested, and universal alternative solution is when being engaged to engine stabilizer from starter using stopwatch manual record to operate used
Between (it is actual to be influenced in high-low temperature test chamber internal cause environmental noise, it can only reset and cut to key according to the timing since being twisted key
Only), although stopwatch can be provided in test report by measurement and calibration, the number that watch error is too big, measures manually is pinched
It is not high according to accuracy；Another scheme just for monomer diesel engine, although voltage, electric current, temperature and engine can be measured
Rotating speed, but this system starts the function of time without calculating automatically, and simply simple gathered data, can't use cold in vehicle
In startup (vehicle low-temperature cool starting needs collecting device low temperature resistant and high temperature, and its sensor installation also with monomer diesel engine
It is different, vehicle installation it is more difficult), function is single, and use scope is limited, therefore, more than 2 kinds of situations cannot meet GB/T
12535《Automobile starting performance test method》The requirement of vehicle low-temperature cool starting.
The content of the invention
To overcome above-mentioned the shortcomings of the prior art, the present invention's is designed to provide a kind of vehicle cold starting number
According to harvester, system and method, to reduce the error of vehicle low-temperature test, the accuracy of vehicle cold-starting experiment can be improved
And personnel's efficiency.
In view of the above and other objects, the present invention proposes a kind of vehicle cold starting data acquisition device, including：
Data acquisition unit, for gathering the relevant parameter of vehicle low-temperature cool starting, and it is whole to gather signal feeding filtering
Shape unit；
Filter shape unit after the signal for being gathered to the data acquisition unit is filtered Shape correction, is sent into
Data processing unit；
Data processing unit is converted into number for the analog signal crossed through the filter shape cell processing to be carried out processing
Word signal, and pass through interface unit and be sent to host computer；
Interface unit, for treated that digital signal is sent to host computer by the data processing unit.
Further, the data acquisition unit includes acceleration transducer, voltage sensor, current sensor and temperature
Sensor is spent, wherein, acceleration transducer is used for gathering vibration acceleration signal during engine operation, and voltage sensor is used for
Starter voltage/level voltage is detected, for detecting starter electric current, temperature sensor is used to detect electrolyte current sensor
Temperature.
Further, the signal gathered for the acceleration transducer and temperature sensor, respectively by low-pass filtering
Using the data processing unit is sent into after analog signal debounce shaping circuit shaping after device progress low-pass filtering, for described
Voltage sensor and the signal of current sensor acquisition, high pressure during oil spout is isolated using isolating transformer, then passes through low pass filtered
The data processing unit is sent into after ripple and analog signal debounce shaping circuit shaping.
Further, the interface unit includes interface administration module, lightning protection ESD device and power module, described to connect
For mouth management module for digital signal to be uploaded to host computer under the control of host computer, the lightning protection ESD device is connected to institute
That states interface administration module and power module outputs and inputs mouth to protect device, and the power module works for generation system
Required voltage.
In order to achieve the above objectives, the present invention also provides a kind of vehicle cold starting data collecting system, including：
Engine or oil machine are Devices to test；
Data acquisition device is connected by various kinds of sensors with the engine or oil machine, low for gathering vehicle
The relevant parameter of warm cold start-up, and digital signal will be converted to after the filtered Shape correction of the signal of acquisition, pass through interface unit
It is sent to host computer；
Host computer, the data for being gathered to the data acquisition device are handled, and calculate engine rotating speed
With the dragging time.
Further, the engine or oil machine are positioned in chamber, and the data acquisition device is placed on examination
Tryoff is outer to be connected by each sensor with the engine or oil machine.
Further, the signal of data acquisition device acquisition include vibration acceleration signal when engine is run,
It is part or all of in starter voltage/level voltage, starter electric current and electrolyte temperature.
Further, the host computer calculates engine speed by analyzing engine fuel injection pulse, and combines and start
Voltage, starting current, engine speed data calculate the dragging time automatically.
In order to achieve the above objectives, the present invention also provides a kind of vehicle cold starting collecting method, including walking as follows
Suddenly：
Step 1 using the relevant parameter of multiple sensors acquisition vehicle low-temperature cool starting, obtains acquisition signal；
Step 2, the acquisition signal obtained to acquisition are filtered shaping；
Step 3, the analog signal that filtered Shape correction is crossed carry out processing and are converted into digital signal；
Step 4 handles the digital signal of acquisition, calculates engine rotating speed and dragging time, draws number
According to curve.
Further, in step 4, vibration acceleration when being run by analyzing engine calculates engine speed,
And combine and start voltage, starting current, engine speed data, the dragging time is calculated automatically.
Compared with prior art, a kind of vehicle low-temperature cool starting data acquisition device of the present invention, system and method pass through by
It is positioned in chamber, data acquisition device is placed on outside chamber and passes through various kinds of sensors and engine or oil machine
Connection will be converted to digital letter to gather the relevant parameter of vehicle low-temperature cool starting after the filtered Shape correction of the signal of acquisition
Number, engine rotating speed and dragging time are calculated to reduce test error according to the digital signal of acquisition, the present invention can carry
Accuracy and personnel's efficiency in high vehicle cold-starting experiment.
Description of the drawings
Fig. 1 is a kind of system architecture diagram of vehicle cold starting data acquisition device of the present invention；
Fig. 2 is a kind of system architecture diagram of vehicle low-temperature cool starting data collecting system of the present invention；
Fig. 3 is the system construction drawing of the vehicle low-temperature cool starting data collecting system of the specific embodiment of the invention
Fig. 4 is the detail structure chart of the vehicle low-temperature cool starting data collecting system of the specific embodiment of the invention；
Fig. 5 a and Fig. 5 b are respectively the schematic diagram of the obverse and reverse of data acquisition device in the specific embodiment of the invention；
Fig. 6 is a kind of step flow chart of vehicle low-temperature cool starting collecting method of the present invention.
Specific embodiment
Below by way of specific specific example and embodiments of the present invention are described with reference to the drawings, those skilled in the art can
Understand the further advantage and effect of the present invention easily by content disclosed in the present specification.The present invention can also pass through other differences
Specific example implemented or applied, the various details in this specification also can be based on different viewpoints with application, without departing substantially from
Various modifications and change are carried out under the spirit of the present invention.
Fig. 1 is a kind of system architecture diagram of vehicle cold starting data acquisition device of the present invention.As shown in Figure 1, this hair
A kind of bright vehicle cold starting data acquisition device, including：
Data acquisition unit 101, for gathering the relevant parameter of vehicle low-temperature cool starting, such as engine speed, starting
It is part or all of in electromechanical pressure/level voltage, starter electric current and electrolyte temperature, and it is whole to gather signal feeding filtering
Shape unit 102, in the specific embodiment of the invention, data acquisition unit 101 gathers vehicle low temperature cold by various sensors and opens
Dynamic relevant parameter, each sensor are connected with the engine of vehicle or oil machine, and specifically, data acquisition unit 101 includes accelerating
Sensor, voltage sensor, current sensor and temperature sensor are spent, wherein, acceleration transducer is used for gathering engine
Whole acceleration simultaneously calculates engine speed, and voltage sensor for detecting starter voltage/level voltage, use by current sensor
In detection starter electric current, temperature sensor is used to detect electrolyte temperature；Filter shape unit 102, for data acquisition
After the signal that unit 101 gathers is filtered Shape correction, data processing unit 103 is sent into, specifically, for acceleration sensing
Device and the signal of temperature sensor acquisition, it is whole using analog signal debounce after low-pass filter carries out low-pass filtering respectively
Shape circuit is to dispel feeding data processing unit 103 after the shake in analog signal and shaping, for voltage sensor and electric current
The signal of sensor acquisition is isolated high pressure during oil spout using isolating transformer, then is gone by low-pass filtering and analog signal
Shaping is trembled to dispel feeding data processing unit 103 after the shake in analog signal and shaping；Data processing unit 103, is used for
By filtered 102 processed analog signal of shaping unit carry out processing be converted into digital signal, and pass through interface unit by its
It is sent to host computer；Interface unit 104, for by data processing unit 103, treated that digital signal is sent to host computer,
In the specific embodiment of the invention, the interface unit 104 can be communicated by serial communication port with host computer, also can be by wirelessly connecing
Mouth communicates with host computer, not limits herein.
Fig. 2 is a kind of system architecture diagram of vehicle low-temperature cool starting data collecting system of the present invention, and Fig. 3 is specific for the present invention
The system construction drawing of the vehicle low-temperature cool starting data collecting system of embodiment.As shown in Figures 2 and 3, a kind of vehicle of the present invention
Low-temperature cool starting data collecting system, including：Engine or oil machine 10, data acquisition device 20 and host computer 30.
Wherein, engine or oil machine 10 are Devices to test, are positioned in chamber；Data acquisition device 20 is placed
Outside chamber and pass through various kinds of sensors and be connected with engine or oil machine 10, for gathering the phase of vehicle low-temperature cool starting
Related parameter, and digital signal will be converted to after the filtered Shape correction of the signal of acquisition, host computer is sent to by interface unit
30；Host computer 30, the data for being gathered to data acquisition device 20 are handled, and calculate engine rotating speed and dragging
Time, drawing data curve, and record file is generated, data are preserved, specifically, host computer 30 is by analyzing engine luggine
Acceleration calculation goes out engine speed, and combines and start the data such as voltage, starting current, engine speed, calculates and drags automatically
The dynamic time.
Fig. 4 is the detail structure chart of the vehicle low-temperature cool starting data collecting system of the specific embodiment of the invention.In this hair
In bright specific embodiment, the vehicle low-temperature cool starting data collecting system of the present invention, including：Engine or oil machine 10, number
According to harvester 20 and upper PC machine 30.
Wherein, engine or oil machine 10 are Devices to test；Data acquisition device 20 includes sensor group 210, bottom plate
220th, collection plate 230, interface circuit 240, i.e. sensor group 210 are above-mentioned data acquisition unit, and bottom plate 220 is filter shape list
Member, collection plate 230 are data processing unit, and interface circuit 240 is interface unit, and sensor group 210 includes acceleration transducer
211st, voltage fixture 212, current sensor 213 and temperature sensor 214, are respectively placed in corresponding position, for detecting engine
Vibration acceleration, starter voltage/level voltage, starter electric current and electrolyte temperature during operation, bottom plate 220 include first
The 221, first isolating transformer 222 of active low-pass filter (LPF1), the second active low-pass filter (LPF2) 223, second every
From transformer 224, the 225, the 4th active low-pass filter (LPF4) 226 of the 3rd active low-pass filter (LPF3) and analog signal
Debounce shaping circuit 227, high pressure when isolating transformer 222 and 224 is used to isolate oil spout, active low-pass filter 221,223,
225 and 226 for filtering out the clutter of engine and other circuits, and analog signal debounce shaping circuit 227 is believed for dispelling simulation
Shake and shaping on number；Collection plate 230 includes microprocessor ARM, analog-to-digital conversion ADC, flash memory Flash, power management, reset
Circuit RST and USB conversion circuit is stored and passed through for the analog signal after debounce shaping to be converted into digital signal
USB conversion circuits are transmitted to interface circuit 240, and interface circuit 240 includes interface management, lightning protection ESD device and power module, uses
+ 24V/ ± 12V/+5V voltages needed for working in generation system simultaneously complete anti-lightning strike and interface management；Upper PC machine 30 is operation
The computer or palm PC of invention software.
Specifically, the output of acceleration transducer 211 is connected to the input of the first active low-pass filter (LPF1) 221
End, the output of voltage fixture 212 are connected to the primary side of the first isolating transformer 222, the secondary end of the first isolating transformer 222
The input terminal of the second active low-pass filter (LPF2) 223 is connected to, 213 output is connected to the first isolating transformer 224
Primary side, the secondary end of the first isolating transformer 224 are connected to the input terminal of the 3rd active low-pass filter (LPF3) 225, temperature
The output of degree sensor 214 is connected to the input terminal of the 4th active low-pass filter (LPF4) 226, the first active low-pass filter
(LPF1) 221 output terminal, the output terminal of the second active low-pass filter (LPF2) 223, the 3rd active low-pass filter
(LPF3) output terminal of 225 output terminal and the 4th active low-pass filter (LPF4) 226 is respectively connected to analog signal debounce
The input terminal of shaping circuit 227, the output terminal of analog signal debounce shaping circuit 227 are connected to the analog-to-digital conversion of collection plate 230
The analog signal collected is converted to digital letter by ADC, the analog-to-digital conversion ADC of collection plate 230 under the control of microprocessor ARM
It number is stored or interface circuit 240 is sent to by RS232/485 interfaces, the interface management of interface circuit 240 is in upper PC
Digitized sensing data is uploaded to upper PC machine 30 under the control of machine 30 to be handled to obtain real time data and figure, is prevented
What thunder ESD device was connected to interface management and power module outputs and inputs mouth so that device to be protected not damaged by lightning stroke and ESD electrostatic
Bad, the+24V/ ± 12V/+5V outputs of power module are connected to each corresponding power interface of system.
It should be noted that, Fig. 3 simply illustrates, voltage fixture 212, isolating transformer 223, the second active low-pass filter herein
Device (LPF2) 223 non-can stop all the way, acceleration transducer 213, isolating transformer 224, the 3rd active low-pass filter
(LPF3) 225 non-can also stop all the way, and temperature sensor 214, the 4th active low-pass filter (LPF4) 226 non-can also stop all the way,
The analog-to-digital conversion ADC of collection plate 230 nor only all the way, the also reserved wireless interface of collection plate 230 is wireless to be carried out with upper PC machine
Communication.
Fig. 5 a and Fig. 5 b are the schematic diagram of the obverse and reverse of data acquisition device in the specific embodiment of the invention.In this hair
In bright specific embodiment, voltage acquisition interface, current acquisition interface, rotating speed acquisition interface and multiple temperature acquisition interfaces are set
In the front of data acquisition device, power cord opening, USB interface and power switch are arranged at the back side of data acquisition device.
Fig. 6 is a kind of step flow chart of vehicle low-temperature cool starting collecting method of the present invention.As shown in fig. 6, this hair
A kind of bright vehicle low-temperature cool starting collecting method, includes the following steps：
Step 601, using the relevant parameter of multiple sensors acquisition vehicle low-temperature cool starting, acquisition signal is obtained.At this
In invention specific embodiment, vehicle is gathered using acceleration transducer, voltage sensor, current sensor and temperature sensor
Vibration signal, starter voltage/level voltage, starter electric current and electrolyte temperature when engine or oil machine are run.
Step 602, acquisition signal is obtained to acquisition and is filtered shaping.In the specific embodiment of the invention, for accelerating
Sensor and the signal of temperature sensor acquisition are spent, respectively using analog signal after low-pass filter carries out low-pass filtering
Debounce shaping circuit is to dispel the shake in analog signal and shaping；The letter gathered for voltage sensor and current sensor
Number, high pressure during oil spout is isolated using isolating transformer, then by low-pass filtering and the shaping of analog signal debounce to dispel mould
Intend the shake on signal.
Step 603, the analog signal filtered Shape correction crossed carries out processing and is converted into digital signal.Specifically, may be used
The analog signal that filtered Shape correction is crossed carries out processing and is converted into digital signal, and passes through interface unit and be sent to
Position machine
Step 604, the digital signal of acquisition is handled, calculates engine rotating speed and dragging time, drawn
Data and curves, and record file is generated, data are preserved, specifically, host computer can be calculated by analyzing engine fuel injection pulse
Go out engine speed, and combine and start the data such as voltage, starting current, engine speed, calculate the dragging time automatically, it is upper
Machine calculates engine speed by analyzing engine fuel injection pulse, and combination starting current, voltage judge whether to start successfully,
The starting point of dragging time calculating can so be unified, reduce the error artificially generated.
In conclusion a kind of vehicle low-temperature cool starting data acquisition device of the present invention, system and method will be by that will be positioned over
In chamber, by data acquisition device be placed on outside chamber and pass through various kinds of sensors be connected with engine or oil machine with
The relevant parameter of vehicle low-temperature cool starting is gathered, and digital signal, root will be converted to after the filtered Shape correction of the signal of acquisition
Engine rotating speed and dragging time are calculated to reduce test error according to the digital signal of acquisition, and the present invention can improve vehicle
Accuracy and personnel's efficiency in cold-starting experiment.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.Any
Field technology personnel can modify above-described embodiment and changed under the spirit and scope without prejudice to the present invention.Therefore,
The scope of the present invention, should be as listed by claims.
Claims (10)
1. a kind of vehicle cold starting data acquisition device, including：
Acquisition signal for gathering the relevant parameter of vehicle low-temperature cool starting, and is sent into filter shape list by data acquisition unit
Member；
Filter shape unit after the signal for being gathered to the data acquisition unit is filtered Shape correction, is sent into data
Processing unit；
Data processing unit is converted into digital letter for the analog signal crossed through the filter shape cell processing to be carried out processing
Number, and pass through interface unit and be sent to host computer；
Interface unit, for treated that digital signal is sent to host computer by the data processing unit.
2. a kind of vehicle cold starting data acquisition device as described in claim 1, it is characterised in that：The data acquisition
Unit includes acceleration transducer, voltage sensor, current sensor and temperature sensor, wherein, acceleration transducer is used
Gather vibration signal during engine operation, voltage sensor is for detecting starter voltage/battery voltage, current sensor
For detecting starter electric current, temperature sensor is used to detect the temperature such as fuel oil/coolant/machine oil.
3. a kind of vehicle cold starting data acquisition device as claimed in claim 2, it is characterised in that：For the acceleration
Sensor and the signal of temperature sensor acquisition are spent, respectively using analog signal after low-pass filter carries out low-pass filtering
The data processing unit is sent into after debounce shaping circuit shaping, the letter gathered for the voltage sensor and current sensor
Number, high pressure during oil spout is isolated using isolating transformer, then passes through low-pass filtering and analog signal debounce shaping circuit shaping
After be sent into the data processing unit.
4. a kind of vehicle cold starting data acquisition device as described in claim 1, it is characterised in that：The interface unit
Including interface administration module, lightning protection ESD device and power module, the interface administration module is used under the control of host computer
Digital signal is uploaded to host computer, the lightning protection ESD device is connected to the input of the interface administration module and power module
With delivery outlet to protect device, the power module is for the required voltage of generation system work.
5. a kind of vehicle cold starting data collecting system, including：
Engine or oil machine are Devices to test；
Data acquisition device is connected by various kinds of sensors with the engine or oil machine, for gathering vehicle low temperature cold
The relevant parameter of startup, and digital signal will be converted to after the filtered Shape correction of the signal of acquisition, it is transmitted by interface unit
To host computer；
Host computer, the data for being gathered to the data acquisition device are handled, and are calculated engine rotating speed and are dragged
The dynamic time.
6. a kind of vehicle cold starting data collecting system as claimed in claim 5, it is characterised in that：The vehicle starts
Machine or oil machine are positioned in chamber, and it is outer by each sensor and vehicle hair that the data acquisition device is placed on chamber
Motivation or oil machine connection.
7. a kind of vehicle cold starting data collecting system as claimed in claim 5, it is characterised in that：The data acquisition
The signal of device acquisition includes the vibration acceleration, starter voltage/level voltage, the starter electric current that are generated when engine is run
With it is part or all of in electrolyte temperature.
8. a kind of vehicle cold starting data collecting system as claimed in claim 7, it is characterised in that：The host computer leads to
Vibration acceleration when crossing analysis engine operation calculates engine speed, and combines and start voltage, starting current, engine
Rotary speed data calculates the dragging time automatically.
9. a kind of vehicle cold starting collecting method, includes the following steps：
Step 1 using the relevant parameter of multiple sensors acquisition vehicle low-temperature cool starting, obtains acquisition signal；
Step 2, the acquisition signal obtained to acquisition are filtered shaping；
Step 3, the analog signal that filtered Shape correction is crossed carry out processing and are converted into digital signal；
Step 4 handles the digital signal of acquisition, calculates engine rotating speed and dragging time, and drawing data is bent
Line.
10. a kind of vehicle cold starting collecting method as claimed in claim 9, it is characterised in that：In step 4,
Vibration acceleration when being run by analyzing engine calculates engine speed, and combines and start voltage, starting current, starts
Machine rotary speed data calculates the dragging time automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711384371.4A CN108107784A (en) | 2017-12-20 | 2017-12-20 | A kind of vehicle cold starting data acquisition device, system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711384371.4A CN108107784A (en) | 2017-12-20 | 2017-12-20 | A kind of vehicle cold starting data acquisition device, system and method |
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| CN108107784A true CN108107784A (en) | 2018-06-01 |
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| CN201711384371.4A Pending CN108107784A (en) | 2017-12-20 | 2017-12-20 | A kind of vehicle cold starting data acquisition device, system and method |
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Cited By (1)
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Application publication date: 20180601 |