CN207263437U - A kind of multi-fuel automobile cold start charge heating performance detection experimental system - Google Patents
A kind of multi-fuel automobile cold start charge heating performance detection experimental system Download PDFInfo
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- CN207263437U CN207263437U CN201721162611.1U CN201721162611U CN207263437U CN 207263437 U CN207263437 U CN 207263437U CN 201721162611 U CN201721162611 U CN 201721162611U CN 207263437 U CN207263437 U CN 207263437U
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Abstract
The utility model discloses a kind of multi-fuel automobile cold start charge heating performance detection experimental system, including the engine cold starting Laboratory Module with temperature control function, inlet air heating module, for gathering outer atmospheric temperature, the temperature collecting module of the air themperature after the preheating of engine cold starting Laboratory Module after the heating-up temperature of inlet air heating module and preheating, for intake air temperature change and the temperature detecting module of preheating time after showing atmospheric temperature and preheating, for judging the fuel type selecting module of the job initiation time of heater according to the fuel type being pre-selected；For preventing the excessive heated protective module for causing damage of heter temperature.The testing experimental system can effectively detect the working performance of corresponding cold start pre-heating system, have the advantages of simple in structure, accuracy of detection is high, applied easy to enterprise or colleges and universities in production field and research and development field.
Description
Technical field
Automobile cold start performance study and detection field are the utility model is related to, more particularly to a kind of cold of multi-fuel automobile
Dynamic charge heating performance detection experimental system.
Background technology
In internal combustion engine experimental performance research, the cold-start performance of engine is important in engine performance research index
One research contents, and the cold-start performance of engine has important influence to the dynamic property and economy of automobile.Therefore, it is right
It is cold to developing a kind of engine in the measurement of engine cold starting intake air temperature and the control of preheating device and heating-up temperature measurement
It is very crucial to start preheating device.
But in traditional automobile cold start preheating performance test experience, engine bench test mode generally is used,
Under ambient temperature is adjusted, the performance of preheating device is judged according to the cold start number of engine and time.Although the experiment method
It can reflect the inlet air heating performance of preheating device to a certain extent, but cold start intake air temperature and preheating cannot be accurately reflected
Heating-up temperature, the preheating device for being difficult to later development degree of precision provide certain research parameter.Therefore, to further expand
Engine cold starting preheats the research of performance, improves the temperature control precision of the pre- hot product of engine charge, it is necessary to design one
Kind engine charge preheating performance checking test.
Utility model content
The purpose of the utility model is to overcome above-mentioned problems of the prior art, there is provided a kind of cold of multi-fuel automobile
Dynamic charge heating performance detection experimental system is, it can be achieved that automobile cold start intake air temperature test experience, automobile cold start air inlet are pre-
Thermal performance detection is tested, and exploitation and the application of the checking test can be that the design of automobile cold start preheating device plays
Certain effect.
The technical solution of the utility model is：A kind of multi-fuel automobile cold start charge heating performance detection experimental system,
Including the engine cold starting Laboratory Module with environment temperature control function, be used for realization charge heating inlet air heating module,
For the Engine Inlet Temperature after gathering electric heating sheets surface temperature in outer atmospheric temperature, inlet air heating module and preheating
Temperature collecting module；The temperature detection mould that heater works is controlled for the temperature signal provided according to temperature collecting module
Block；For judging the fuel type selecting module of the job initiation time of heater according to the fuel type being pre-selected；With
In prevent heter temperature it is excessive cause damage heated protective module；The engine cold starting Laboratory Module, inlet air heating mould
Block, temperature collecting module, temperature detecting module, fuel type selecting module and heated protective module respectively with controller signals
Connection.
Above-mentioned engine cold starting Laboratory Module is to implement the temperature controlled experiment of indoor environment individually by external control stand
Device, the system and automobile cold start charge heating system are separate, are to provide the outer atmospheric temperature demand needed for experiment,
The engine cold starting Laboratory Module specifically uses brocade China LQD h type engine h cold start Laboratory Modules, and Laboratory Module realizes temperature control model
Enclose for -40 DEG C -50 DEG C.
Above-mentioned temperature collecting module includes STC90C52RC control chips and believes respectively with STC90C52RC control chips
The air inlet temperature measurement module and heater temperature measurement module of number connection, the STC90C52RC control chips are connected with controller signals；
The air inlet temperature measurement module include atmospheric temperature measurement bridge for measuring temperature and preheated air temperature measurement bridge for measuring temperature, wherein this two
PT100 temperature sensor thermometrics are used in bridge for measuring temperature；The heater temperature measurement module includes being used for HEATER FOR MEASURING temperature
K-type thermocouple circuit structure.
Above-mentioned heated protective module is included at K-type thermocouple and the MAX6675 temperature being connected with the K-type thermocouple signal
Manage module, the STC90C52RC control chips signal connection of MAX6675 Temperature Treatments module and temperature detecting module.
Above-mentioned fuel type selecting module includes three selected on-off circuits, and each selected on-off circuit includes a control
Indicator light processed, and each selected on-off circuit is connected with different types of fuel system signal respectively.
Above-mentioned inlet air heating module is the air preheat heater of two kinds of power types of 240W and 480W.
Above-mentioned temperature detecting module includes the control chip of model STC90C52RC and believes respectively with the control chip
Number connection signal amplifier LM324, A/D convertor circuit and LCD1602 liquid crystal displays.
The beneficial effects of the utility model：In the utility model embodiment, there is provided a kind of multi-fuel automobile cold start into
Gas preheats performance checking test, which is controlled using microcontroller, by disposing temperature sensor and thermocouple assembly simultaneously
Coordinate compact temperature control system to realize engine cold starting intake air temperature and preheating heating unit temperature are measured and controlled
System.The system not only increases the measurement accuracy of engine cold starting preheating temperature, and simultaneity factor is easy to send out for different fuel
Motivation realizes that the control of intake air temperature and preheating temperature extends, and has stronger plasticity and researching value.
Brief description of the drawings
Fig. 1 is the hardware block diagram of the utility model；
Fig. 2 is the work flow diagram of the utility model；
Fig. 3 is the bridge for measuring temperature circuit diagram of the utility model；
Fig. 4 is the heating protection circuit of the utility model；
Fig. 5 is the fuel type selecting module circuit of the utility model；
Fig. 6 is the control circuit for heater of the utility model；
Fig. 7 is the power amplifier module circuit of the utility model；
Fig. 8 is the temperature detecting module circuit of the utility model；
Fig. 9 is the display module circuit of the utility model.
Embodiment
Below in conjunction with the accompanying drawings, an embodiment of the utility model is described in detail, it is to be understood that this
The protection domain of utility model and from the limitation of embodiment.
Referring to Fig. 1, Fig. 2, the utility model embodiment provides a kind of multi-fuel automobile cold start charge heating performance inspection
Survey experimental system, including the engine cold starting Laboratory Module with environment temperature control function, be used for realization charge heating into
Gas heating module, for gathering electric heating sheets surface temperature in outer atmospheric temperature, inlet air heating module and the hair after preheating
The temperature collecting module of motivation intake air temperature；Heater is controlled to work for the temperature signal provided according to temperature collecting module
Temperature detecting module；For judging the fuel type of the job initiation time of heater according to the fuel type being pre-selected
Selecting module；For preventing the excessive heated protective module for causing damage of heter temperature；The engine cold starting Laboratory Module,
Inlet air heating module, temperature collecting module, temperature detecting module, fuel type selecting module and heated protective module respectively with
Controller signals connect.
Further, the engine cold starting Laboratory Module is to implement indoor environment temperature control individually by external control stand
The experimental provision of system, the system and automobile cold start charge heating system are separate, are to provide the ambient atmosphere needed for experiment
Temperature requirements, the engine cold starting Laboratory Module specifically use brocade China LQD h type engine h cold start Laboratory Modules, and Laboratory Module realizes temperature
It is -40 DEG C -50 DEG C to spend control range.
Further, the temperature collecting module includes STC90C52RC control chips and is controlled respectively with STC90C52RC
The air inlet temperature measurement module and heater temperature measurement module of chip signal connection processed, the STC90C52RC control chips are believed with controller
Number connection；The air inlet temperature measurement module includes atmospheric temperature measurement bridge for measuring temperature and preheated air temperature measurement bridge for measuring temperature, its
In use PT100 temperature sensor thermometrics in two bridge for measuring temperature, its bridge for measuring temperature circuit structure is as shown in figure 3, wherein
R4, R5 are fixed value resistance, and Rpot is variable adjustment resistance, and PT100 is temperature sensor.When measuring resistance with nonequilibrium bridge,
It is to remain unchanged R4, R5 and Rpot, then U0 changes when PT100 changes.Further according to the functional relation of U0 and Rx, by detecting U0
Change so as to measuring Rx.Since the U0 of consecutive variations can be detected.The temperature voltage information of measurement is finally passed through into amplifier
And after a/d converter processing, finally it is transferred to temperature detecting module STC90C52RC control chips.The heater temperature measurement module
Including K-type thermocouple and its circuit composition for HEATER FOR MEASURING temperature, its physical circuit describes to see the heated protective mould of Fig. 4
Block circuit structure.
Further, the heated protective module main function is protection heater normal work, prevents operating temperature mistake
Height damage, it mainly forms the MAX6675 Temperature Treatment modules being connected including K-type thermocouple and with the K-type thermocouple signal,
The STC90C52RC control chips signal of MAX6675 Temperature Treatments module and temperature detecting module connects.Heated protective module
Basic circuit structure after the measurement temperature voltage signal of MAX6675 Temperature Treatments module collection K-type thermocouple as shown in figure 4, pass through
Temperature detecting module STC90C52RC control chips are transferred to after processing.
Further, the fuel type selecting module includes three selected on-off circuits, each selected on-off circuit
Include a control indicator light, and each selected on-off circuit is connected with different types of fuel system signal respectively；It is logical
The switch for crossing selected on-off circuit is selected to control detection of fuel type (gasoline, diesel oil, alcohols) as shown in figure 5, working as a certain choosing
When selecting the selecting switch closure of on-off circuit, the control indicator light of the circuit is lighted, and the switch of the selection on-off circuit is selected
Select information and be transferred to STC90C52RC control chips, so as to be controlled by STC90C52RC control chips corresponding with the selection switch
Fuel system open to supply corresponding fuel.
Further, the inlet air heating module is the air preheat heater of two kinds of power types of 240W and 480W.Its
Control circuit for heater is as shown in fig. 6, control chip STC90C52RC sends thermal control signals by pin circuitry JDQ, output
One high level, heater operating circuit is connected through pliotron Q1 amplification turn-on relays coil K1, relay coil K1,
Heater is started to work.Inlet air heating module can use general and self-defined both of which, common-mode select 12V, 240W and
Two kinds of air heaters of 24V, 480W, self-defined pattern can choose to install other power type air heaters, but supporting tracheae and tight
Fixing bolt need to customize again.
Further, the control chip of the temperature detecting module including model STC90C52RC and respectively with the control
Signal amplifier LM324, A/D convertor circuit and the LCD1602 liquid crystal displays of chip signal connection processed.Signal amplification circuit
The signal voltage that air inlet temperature measurement module inputs is amplified and digital signal is converted to by a/d converter, is transferred to
STC90C52RC control chips.The atmospheric temperature of measurement, preheating temperature are passed through display module by STC90C52RC control chips
LCD1602 liquid crystal displays are shown, and control inlet air heating module and heating according to detection temperature information and fuel type information
Protection module works；Physical circuit figure is as shown in Fig. 7, Fig. 8 and Fig. 9.
The utility model mainly realizes intake air temperature control using engine cold starting Laboratory Module, by test engine and survey
Test system is arranged in Laboratory Module, which can realize that intake air temperature is controlled adjusting between -40 DEG C -50 DEG C, is met
Automobile engine cold-starting ambient temperature simulates demand.Inlet air heating module mainly uses common two species of 240W and 480W
Type air preheat heater, also replacing other types or power heater.Temperature collecting module major function is that collection is extraneous
Air themperature after atmospheric temperature, heter temperature and preheating.The module arrangement in engine intake manifold below the throtlle valve, its
Main composition includes microcontroller, temperature sensor, thermocouple probe, relay and shell composition.The main work(of temperature detecting module
Can be that intake air temperature change and preheating time after atmospheric temperature and preheating are intuitively shown by light-emitting diode display.Fuel type selects
It is that microcontroller is according to fuel according to the fuel type (comprising gasoline, diesel oil, Aalcohols fuel) being pre-selected to select the main function of module
Minimum ignition temperature, judge job initiation time of heater.Heated protective module major function is to prevent heter temperature
It is excessive to cause to damage.Its operation principle is to limit its maximum operating temperature by thermocouple feedback operation temperature, microcontroller, when super
During overtemperature protection temperature, microcontroller controls its power-off protection.
The operation principle of multi-fuel automobile cold start charge heating performance detection experimental system is to pass through engine cold starting
Laboratory Module predetermined analog cold start experimental temperature, emulates cold start external environment.Before the engine is started up, surveyed by operating personnel
Test fuel type is preset on test system.
After engine receives start signal, temperature collecting module, temperature monitoring module are started to work, and gather big temperature
Degree, heter temperature and air preheating temperature, and the temperature information of collection is transferred to control single chip computer.Single-chip computer control system
Judge that no is to perform heating instructions according to monitoring atmospheric temperature and default fuel test-types, when test atmospheric temperature is less than combustion
When expecting minimum ignition temperature, heating unit is powered carry out air preheat by storage battery, until after engine normal starting,
Temperature detecting module shows charge heating temperature and preheating time, if heater is heated beyond Thermal protection temperature, microcontroller control
Heater processed stops heating, and shows current charge heating temperature.
The utility model is characterized in that：The intake air temperature control module is mainly using the magnificent engine cold starting experiment of brocade
Cabin, the Laboratory Module include nacelle, refrigeration system, heating system, the cross-ventilation circulatory system, cold start cabin mechanical connection system,
Computer control system and safety system etc. form.Laboratory Module uses water-cooling pattern, and Laboratory Module temperature controlling range is -40
DEG C -50 DEG C, heating rate can reach 0.5-1 DEG C/min, and cooling rate can realize 25 DEG C -40 DEG C≤120min, temperature control essence
≤ ± 1 DEG C of degree, temperature deviation≤± 2 DEG C.
The inlet air heating module mainly includes power supply and heater, and wherein power supply is using sail series maintenance-free lead acid electricity
Pond, battery size 6-QW-60, number of batteries can be adjusted according to heater voltage demand.Heater can use standard
12V, 240W air preheat heating wire or 24V, 480W air preheat heating wire, also replacing other types air preheat electric heating
Silk.
The temperature collecting module includes atmospheric temperature acquisition module, charge heating temperature collecting module, heter temperature
Acquisition module, wherein atmospheric temperature acquisition module and charge heating temperature collecting module use PT100 temperature sensors, the sensing
Device can realize -50 DEG C -200 DEG C of temperature survey, sensor application nonequilibrium bridge temperature-measurement principle collecting temperature signal making side
Just, using simple, and easily replace.The heter temperature acquisition module uses K-type thermocouple and Max6675 Temperature Treatments
Module forms.K-type thermocouple is good with the linearity, and thermo-electromotive force is larger, high sensitivity, and stability and uniformity are preferable, antioxygen
It is strong, it can be achieved that the temperature survey of 0 DEG C of -1000 DEG C of scope to change performance.
The temperature detecting module mainly includes control module and display module, and wherein control module is using use
STC90C52RC control chips, include nonequilibrium bridge temperature measurement module, signal amplification module, Analog-digital Converter module.It is described
Amplification module uses LM324 differential input amplifiers, and signal processing is reliable and stable, is encapsulated using DIP.The Analog-digital Converter
It is a 8 that device, which uses ADC0804, ADC0804, single channel, low price A/D converter, analog-to-digital conversion time about 100us；
Facilitate TTL or CMOS standard interfaces；It can meet that differential voltage inputs；With reference voltage input terminal；Include clock generator；
(0~5) V input voltage ranges are 0~5V when single supply works；It need not return to zero, be encapsulated using DIP.
The display module is made of LCD1602 liquid crystal displays and its basic circuit.
The multi-fuel automobile cold start charge heating performance detection experimental system that the utility model mainly provides, the system according to
Accurately simulate cold start ambient temperature by engine cold starting Laboratory Module, using temperature collecting module temperature sensor into
Trip temperature gathers, and intake air temperature is judged and control by ripe STC90C52RC microcontrollers, finally utilizes closed-loop control
Mode realize the display of preheating temperature and heating time, in case of emergency microcontroller can be also realized to air heating apparatus
Control system of switching on or off electricity.The system has the advantages of simple in structure, accuracy of detection is high, easy to enterprise or colleges and universities in production field and research
Application in development field.
The intake air temperature control module of the utility model is mainly using the magnificent engine cold starting Laboratory Module of brocade, its main skill
Art parameter is：Laboratory Module size is 8000*6000*5000mm；- 40 DEG C -50 DEG C of Laboratory Module temperature controlling range；Heating rate can
It is adjustable to reach 0.5-1 DEG C/min；Cooling rate can realize 25 DEG C -40 DEG C≤120min；Temperature control precision≤± 1 DEG C；Temperature
Deviation≤± 2 DEG C；Refrigeration modes use water cooling；Humid control scope 10-95%RH；Humid control precision ± 5%RH.
Inlet air heating module mainly uses standard 12V, 240W air preheat heating wire or 24V, 480W air preheat electric heating
Silk, also replacing other types air preheat heating wire.Size requires 118*118*26mm；Fixing bolt hole count 4, specification will
Seek M10, power supply uses sail series maintenance-free lead-acid battery, battery size 6-QW-60, cold-starting current requirements 480A,
Number of batteries can be adjusted according to heater voltage demand.
Temperature collecting module mainly uses PT100 temperature sensors, K-type thermocouple and MAX6675 Temperature Treatment module groups
Into.Wherein this time atmospheric temperature collection sensor and preheating temperature collection sensor use PT100 thermistors, the thermistor
Using three-wire system structure；Measurement range:-50℃-150℃；Measurement accuracy≤± 0.2 DEG C；Reaction time ＜ 1 second；Fixing bolt
Specification requirement 6M.K-type thermocouple is mainly used for heter temperature measurement, its measurement temperature scope is：- 50~+1600 DEG C；Measurement
Precision≤± 3 DEG C；Fixing bolt specification requirement 6M.MAX6675 acquisition modules will be transmitted to after K-type thermocouple temperature measurement signal processing
STC90C52RC control chips, for monitoring heter temperature, prevented cause thermal damage, the acquisition module use temperature resolution for
0.25 DEG C, highest reads temperature up to 1024 DEG C, wherein the reading accuracy in 0 DEG C of -700 DEG C of temperature range is 8LSB；Draw using 8
Foot SO is encapsulated.
Temperature detecting module is mainly using STC90C52RC control chips, LM324 input operational amplifiers, AC0804A/D
Converter and LCD1602 displays.Wherein, STC90C52RC controls core important technological parameters to use double slotting in-line arrangement for shape
DIP encapsulation 8k bytes Flash, 512 byte RAM, 32 I/O mouth lines, built-in 4KB EEPROM, MAX810 reset circuits, 3 16
Bit timing device/counter, 4 external interrupts, one 7 vectorial 4 grades of interrupt structures, complete double serial ports.LM324 signal amplifier work(
With being that the voltage signal that will be collected amplifies and inputs to a/d converter.Its important technological parameters is 4 amplifier integrated circuits, is used
14 foot dual-in-line Plastic Packages, inside include 4 groups of identical operational amplifiers of form, in addition to power sharing, 4 groups of computings
Amplifier is separate, and operational amplifier operating voltage range is 3-32V.
Display module includes 2 LCD1602 displays, shows atmospheric temperature, preheating temperature and preheating time respectively,
LCD1602 displays are a kind of industrial Character Mode LCDs, can show 16x02 i.e. 32 character at the same time.
With reference to Fig. 2, multi-fuel automobile cold start charge heating performance detection experimental system work provided by the utility model
It is as follows：
When being adjusted experimental situation to set point of temperature by engine cold starting Laboratory Module, passed through by experiment operator
Selecting switch selection test fuel type (gasoline, diesel oil, Aalcohols fuel, ethers fuel).Then by switch button, realize and store
Battery is powered by voltage stabilizing element to control system, and its temperature collecting module is entered working status.Control system is according to pre-
The programme-control atmosphere temperature transducer that is first incorporated into, preheating temperature working sensor and to temperature detecting module feedback collection number
According to temperature detecting module is by the data of collection by being carried out after corresponding operation amplifier, A/D conversions and data processing in display
Display.In whole system detection process temperature detecting module according to pre-enter it is determined by fate temperature data is judged, when
When judging the atmospheric temperature T1 of detection less than selection fuel fire minimum temperature T0, if engine is transferred to starting gear, temperature inspection
Survey module control inlet air heating module and carry out air preheat, if atmospheric temperature does not meet demand for heat, heater does not work, control
Molding block judges then to enter next cycle criterion.System is to ensure heater working life and the reliability of the test system,
Heated protective program is devised in temperature detecting module, judges whether the heater strip temperature T3 of detection is less than the safe work of heater strip
Make maximum temperature T4, if meeting the requirements, temperature detecting module can just connect computer heating control relay, realize that heater works,
If not meeting operating temperature requirements, temperature detecting module will be switched off relay, and heater does not work.Final temperature detection module
By the presentation of information of temperature detecting module over the display, believe comprising atmospheric temperature information, preheating temperature information and preheating time
Breath.
In conclusion the system can realize the cold start air inlet to gasoline, diesel oil, Aalcohols fuel, ethers engine fuel
Preheating device performance is detected analysis and Performance Evaluation.The system is cold extraneous by the simulation of engine cold starting Laboratory Module
Dynamic required atmospheric temperature, by the test fuel type of systemic presupposition, tests the h type engine h cold start charge heating system
Performance.Atmospheric temperature, heater when the test philosophy of the system is mainly by temperature sensor collection engine starting
Temperature and air preheating temperature, and the temperature information of collection is transferred to control single chip computer, single-chip computer control system is according to monitoring
Atmospheric temperature and default fuel test-types judge that no is to perform heating instructions, until after engine normal starting, temperature inspection
Survey module and show charge heating temperature and preheating time, if heater is heated beyond Thermal protection temperature, microcontroller control heating
Device stops heating, and shows current charge heating temperature.The design of the testing experimental system can effectively detect corresponding cold start
The working performance of pre-heating system, has the advantages of simple in structure, accuracy of detection is high, in production field and is ground easy to enterprise or colleges and universities
Study carefully application in development field.
Disclosed above is only a specific embodiment of the utility model, and still, the utility model embodiment is not office
It is limited to this, the changes that any person skilled in the art can think of should all fall into the scope of protection of the utility model.
Claims (7)
1. a kind of multi-fuel automobile cold start charge heating performance detection experimental system, it is characterised in that including with environment temperature
It is the engine cold starting Laboratory Module of spending control function, the inlet air heating module for being used for realization charge heating, extraneous big for gathering
In temperature degree, inlet air heating module electric heating sheets surface temperature and preheating after Engine Inlet Temperature temperature acquisition mould
Block；The temperature detecting module that heater works is controlled for the temperature signal provided according to temperature collecting module；For basis
The fuel type being pre-selected judges the fuel type selecting module of the job initiation time of heater；For preventing heater
The excessive heated protective module for causing damage of temperature；The engine cold starting Laboratory Module, inlet air heating module, temperature acquisition mould
Block, temperature detecting module, fuel type selecting module and heated protective module are connected with controller signals respectively.
2. a kind of multi-fuel automobile cold start charge heating performance detection experimental system as claimed in claim 1, its feature exist
In, the engine cold starting Laboratory Module is to implement the temperature controlled experimental provision of indoor environment individually by external control stand,
The system and automobile cold start charge heating system are separate, are to provide the outer atmospheric temperature demand needed for experiment, the hair
Motivation cold start Laboratory Module specifically uses brocade China LQD h type engine h cold start Laboratory Modules, Laboratory Module realize temperature controlling range for-
40℃-50℃。
3. a kind of multi-fuel automobile cold start charge heating performance detection experimental system as claimed in claim 1, its feature exist
In the temperature collecting module includes STC90C52RC control chips and is connected respectively with STC90C52RC control chip signals
Air inlet temperature measurement module and heater temperature measurement module, the STC90C52RC control chips are connected with controller signals；It is described into
Gas temperature measurement module includes atmospheric temperature measurement bridge for measuring temperature and preheated air temperature measurement bridge for measuring temperature, wherein two thermometric electricity
PT100 temperature sensor thermometrics are used in bridge；The heater temperature measurement module includes the K-type heat for HEATER FOR MEASURING temperature
Coupling circuitry structure.
4. a kind of multi-fuel automobile cold start charge heating performance detection experimental system as claimed in claim 3, its feature exist
In the heated protective module includes K-type thermocouple and the MAX6675 Temperature Treatment moulds being connected with the K-type thermocouple signal
The STC90C52RC control chips signal connection of block, MAX6675 Temperature Treatments module and temperature detecting module.
5. a kind of multi-fuel automobile cold start charge heating performance detection experimental system as claimed in claim 4, its feature exist
In the fuel type selecting module includes three selected on-off circuits, and each selected on-off circuit includes a control and refers to
Show lamp, and each selected on-off circuit is connected with different types of fuel system signal respectively.
6. a kind of multi-fuel automobile cold start charge heating performance detection experimental system as claimed in claim 4, its feature exist
In the inlet air heating module is the air preheat heater of two kinds of power types of 240W and 480W.
7. a kind of multi-fuel automobile cold start charge heating performance detection experimental system as claimed in claim 4, its feature exist
In the temperature detecting module includes the control chip of model STC90C52RC and is connected respectively with the control chip signal
Signal amplifier LM324, A/D convertor circuit and LCD1602 liquid crystal displays.
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| CN201721162611.1U CN207263437U (en) | 2017-09-11 | 2017-09-11 | A kind of multi-fuel automobile cold start charge heating performance detection experimental system |
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| CN201721162611.1U CN207263437U (en) | 2017-09-11 | 2017-09-11 | A kind of multi-fuel automobile cold start charge heating performance detection experimental system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108536192A (en) * | 2018-03-07 | 2018-09-14 | 潍柴动力股份有限公司 | A kind of heater test control device and control method |
| CN110185559A (en) * | 2019-06-29 | 2019-08-30 | 潍柴动力股份有限公司 | A kind of inlet air heating control method, apparatus and system |
| CN110296026A (en) * | 2019-06-28 | 2019-10-01 | 潍柴动力股份有限公司 | The control method and device of inlet air heating |
| CN110793777A (en) * | 2019-10-23 | 2020-02-14 | 清华大学 | Testing arrangement of effect is preheated in simulation diesel engine intake duct environment air admission |
| CN110821689A (en) * | 2019-11-28 | 2020-02-21 | 潍柴动力股份有限公司 | Cold start control method and device and electronic control unit |
-
2017
- 2017-09-11 CN CN201721162611.1U patent/CN207263437U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108536192A (en) * | 2018-03-07 | 2018-09-14 | 潍柴动力股份有限公司 | A kind of heater test control device and control method |
| CN110296026A (en) * | 2019-06-28 | 2019-10-01 | 潍柴动力股份有限公司 | The control method and device of inlet air heating |
| CN110185559A (en) * | 2019-06-29 | 2019-08-30 | 潍柴动力股份有限公司 | A kind of inlet air heating control method, apparatus and system |
| CN110185559B (en) * | 2019-06-29 | 2020-09-29 | 潍柴动力股份有限公司 | Intake air heating control method, device and system |
| CN110793777A (en) * | 2019-10-23 | 2020-02-14 | 清华大学 | Testing arrangement of effect is preheated in simulation diesel engine intake duct environment air admission |
| CN110821689A (en) * | 2019-11-28 | 2020-02-21 | 潍柴动力股份有限公司 | Cold start control method and device and electronic control unit |
| CN110821689B (en) * | 2019-11-28 | 2022-07-15 | 潍柴动力股份有限公司 | Cold start control method and device and electronic control unit |
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Granted publication date: 20180420 Termination date: 20180911 |