CN105863899A - Intelligent automobile diesel oil heating control system and method - Google Patents
Intelligent automobile diesel oil heating control system and method Download PDFInfo
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- CN105863899A CN105863899A CN201610379046.8A CN201610379046A CN105863899A CN 105863899 A CN105863899 A CN 105863899A CN 201610379046 A CN201610379046 A CN 201610379046A CN 105863899 A CN105863899 A CN 105863899A
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- temperature
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- heating
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- diesel oil
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
- F02M31/125—Fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating or supervising devices
Abstract
The invention provides an intelligent automobile diesel oil heating control system and an intelligent automobile diesel oil heating control method. The intelligent automobile diesel oil heating control system comprises a battery voltage acquisition circuit, a temperature acquisition circuit, a main control circuit and an intelligent power output circuit, wherein the battery voltage acquisition circuit and the temperature acquisition circuit are used for respectively acquiring a battery voltage signal and a temperature signal of an oil tank; the main control circuit is coupled with the battery voltage acquisition circuit and the temperature acquisition circuit; the intelligent power output circuit is coupled with the main control circuit and is used for powering on or powering off a heating element according to working signals; when the battery voltage signal is lower than an under-voltage threshold or an over-voltage threshold, the heating element stops heating; when the battery voltage signal is higher than a first preset value and the temperature signal is lower than a lower limit threshold of temperature, the heating element starts to heat; when the battery voltage signal is lower than a second preset threshold and the temperature signal is lower than the lower limit threshold of temperature, the heating element starts to heat again. By adopting the intelligent automobile diesel oil heating control system, intelligent control of heating control, fault diagnosis and security management of automobile diesel oil can be achieved, and normal low-temperature start and safe heating of supplied diesel oil of a diesel oil automobile in the whole operation process can be ensured.
Description
Technical field
The present invention relates to field of automobile, particularly to a kind of automobile diesel oil heating intelligence control system and side
Method.
Background technology
Automobile with diesel oil as engine fuel, if using low-grade diesel often because ambient temperature is too low
Diesel oil retrogradation, wax deposition, and then the phenomenon that filter screen, oil pipe are blocked occur, causes in vehicle launch difficulty, driving prominent
So fault such as flame-out, thus bring a series of trouble and economic loss to user.If using the diesel oil of preferable label not
But oil price increases, dynamic property also decreases, thus increases the cost of transportation of user.For solving low mark under low temperature environment
Mobility is deteriorated even this phenomenon of wax deposition because viscosity increases for number oil, and people typically directly water pouring with hot water or bake with fire
Promoting fuel oil to liquefy near fuel tank and fuel sucking pipe, the method makes fuel tank hot-spot cause danger and cause people sometimes
Member's injury.It has been proposed that apply electrically heated method, its heating system mostly control existing defects to heating element heater,
Can not temperature be controlled within the specific limits, whole system is heated by the experience relying solely on individual, control mode
Excessively simple, poor reliability, potential safety hazard is big.
The most most heating control system uses the break-make of relay to control the break-make of heating element heater, with this
Reach the control to fuel Heating, and the control signal of relay is by the rocker switch Non-follow control being contained in driver's cabin.
Whole system is heated by the experience therefore relying solely on individual, to the real time temperature of system operation intermediate fuel oil,
The parameters such as the temperature of environment, the operation time of heating element heater and state cannot accurately be grasped, and can only rely on heating element heater certainly
The overtemperature protection of body and Non-follow control cut off heating, there is bigger potential safety hazard.When vehicle initial start-up, having can
The situation of the routed electricity of storage battery can occur, cause heating element heater after starting, to accelerate the consumption of electric energy, if this phenomenon frequently occurs,
The service life of battery can be had a significant impact.In vehicle runs, if needing Non-follow control to start heating, having can
Driver attention can be disperseed, there is driving safety hidden danger.
Summary of the invention
The present invention provides a kind of automobile diesel oil heating intelligence control system and method, it is therefore intended that realize entering motor vehicle diesel
The Based Intelligent Control of row computer heating control, fault diagnosis and safety management, to ensure that the low temperature of diesel vehicle normally opens merit and operation
The safe heating of the diesel oil fuel feeding of overall process.
For solving the problems referred to above, the embodiment of the present invention provides a kind of automobile diesel oil heating intelligence control system, including,
Battery voltage acquisition circuit, Real-time Collection current battery level signal；
Temperature collection circuit, described temperature collection circuit connects temperature sensor, by temperature sensor in real time to fuel tank
Oil temperature carries out temperature signal collection；
Governor circuit, couples described battery voltage acquisition circuit and described temperature collection circuit, set brownout threshold, the
One preset value, overvoltage threshold, the second preset value, temperature upper limit threshold value and lowest temperature threshold value, by temperature signal and temperature
Degree upper limit threshold and lowest temperature threshold value compare, by comparing the corresponding working signal of output；
Intelligent power output circuit, couples described governor circuit, makes heating element heater start according to working signal or turns off；
When battery voltage signal is less than brownout threshold, heating element heater stops heating；When higher than the first preset value and meet
When temperature signal is less than lowest temperature threshold value, heating element heater starts to start heating, if temperature signal is higher than temperature upper limit threshold
Value, heating element heater stops heating；When battery voltage signal is higher than overvoltage threshold, heating element heater stops heating；When low
In the second preset value and meet temperature signal less than lowest temperature threshold value time, heating element heater restarts heating, if temperature
Signal is higher than temperature upper limit threshold value, and heating element heater stops heating.
As a kind of embodiment, also include current collection circuit, couple described governor circuit and described intelligent power is defeated
Going out circuit, the current signal of Real-time Collection intelligent power output circuit output, by current signal monitoring heating element heater
Power output, described governor circuit set stream threshold value, when current signal was more than stream threshold value, then stopped heating element heater
Output.
As a kind of embodiment, also include data storage circuitry, couple described governor circuit, run for this system
Parameter and the storage of fault message.
As a kind of embodiment, also include buzz circuit, couple described governor circuit, for this system jam
Time, point out different faults information by alternative sounds.
As a kind of embodiment, also include display circuit, couple governor circuit, each parameter when this system is run
Centralized displaying.
As a kind of embodiment, also including some protection circuits, one of them described protection circuit couples cell voltage
The output of Acquisition Circuit, one of them described protection circuit couples the output of temperature collection circuit.
As a kind of embodiment, the quantity of described intelligent power output circuit is two, and one of them intelligent power is defeated
Going out circuit and couple at least one heating element heater being located in fuel tank, another intelligent power output circuit couples at least one
The heating element heater being located in oil pipe.
The embodiment of the present invention provides a kind of automobile diesel oil heating intelligent control method, comprises the following steps:
Whether detection battery voltage signal, judge present battery according to battery voltage signal, brownout threshold, overvoltage threshold
It is in under-voltage condition, overvoltage condition or normal operating conditions；
If described battery is in under-voltage condition or overvoltage condition, does not the most allow heating element heats or stop heating；
If described battery is in normal operating conditions, then judge that whether fuel tank oil temperature is less than lowest temperature according to temperature signal
Threshold value；
The most then enter and automatically heat operational mode.
As a kind of embodiment, if described battery is in normal operating conditions, then judge oil according to temperature signal
Case oil temperature, whether less than lowest temperature threshold value, specifically includes following steps:
Whether detection battery voltage signal is higher than the first preset value and less than overvoltage threshold or the highest less than the second preset value
In brownout threshold；
The most then judge that whether fuel tank oil temperature is in temperature upper limit threshold value and the scope of lowest temperature threshold value according to temperature signal
In.
As a kind of embodiment, when automotive control system is 12V system:
When automobile diesel oil heating intelligence control system detects that cell voltage is less than 11V, stop heating element heater immediately
Heat or do not allow heating, entering battery under-voltage protection function；During until voltage rises to 12V, detection temperature letter
Number whether less than lowest temperature threshold value, the most then enter and automatically heat operational mode；When automobile diesel oil heating intelligence control
System processed detects when cell voltage is higher than 16V, enters battery over-voltage protecting function, until voltage drops to 15V
Time, whether detection temperature signal, less than lowest temperature threshold value, if so, enters and automatically heats operational mode.
When automotive control system is 24V system:
When automobile diesel oil heating intelligence control system detects that cell voltage is less than 21V, stop heating element heater immediately
Heat or do not allow heating, entering battery under-voltage protection function；During until voltage rises to 22V, detection temperature letter
Number whether less than lowest temperature threshold value, if so, enter and automatically heat operational mode；When automobile diesel oil heating Based Intelligent Control
System detects when cell voltage is higher than 30V, enters battery over-voltage protecting function, during until voltage drops to 29V,
Whether detection temperature signal, less than lowest temperature threshold value, if so, enters and automatically heats operational mode.
The present invention having the beneficial effects that compared to prior art: realize that motor vehicle diesel is carried out computer heating control, fault is examined
Break and the Based Intelligent Control of safety management, to ensure that the low temperature of diesel vehicle normally opens the diesel oil fuel feeding of merit and operation overall process
Safe heating；When heating, preferentially detect battery voltage signal, if battery is in under-voltage or overvoltage condition, then refuse
Heating element heats, only when battery is in normal operating conditions and meets the temperature conditions of heating, just allows to add
Thermal element heats, it is to avoid storage battery is burst and accelerated the consumption of electric energy in the case of electricity.
Accompanying drawing explanation
Fig. 1 is the block diagram of the automobile diesel oil heating intelligence control system of the present invention；
Fig. 2 is the circuit diagram of the governor circuit of the present invention；
Fig. 3 is power supply circuit and the circuit diagram of battery voltage acquisition circuit of the present invention；
Fig. 4 is the circuit diagram of the temperature collection circuit of the present invention；
Fig. 5 is the circuit diagram of the intelligent power output circuit of the present invention；
Fig. 6 is the circuit diagram of the display circuit of the present invention；
Fig. 7 is the circuit diagram of the data storage circuitry of the present invention；
Fig. 8 is the circuit diagram of the buzz circuit of the present invention.
Accompanying drawing marks: 1, battery voltage acquisition circuit；2, temperature collection circuit；3, current collection circuit；4, aobvious
Show circuit；41, display driver circuit；5, data storage circuitry；6, intelligent power output circuit；61, intelligence merit
Rate chip drive circuit；7, buzz circuit；71, buzzer drive circuit；8, governor circuit；9, power supply electricity
Road；
Detailed description of the invention
Below in conjunction with accompanying drawing, to the present invention, above-mentioned and other technical characteristic and advantage are clearly and completely described,
Obviously, described embodiment is only the section Example of the present invention rather than whole embodiment.
As it is shown in figure 1, a kind of automobile diesel oil heating intelligence control system and method, including governor circuit 8 and and master control
Battery voltage acquisition circuit 1 that circuit 8 couples, temperature collection circuit 2, current collection circuit 3, intelligent power are defeated
Go out circuit 6, data storage circuitry 5, buzz circuit 7 and display circuit 4, also include power supply circuit 9.
As illustrated in fig. 1 and 2, governor circuit 8 uses STM8AF family chip, concrete, uses in this enforcement
STM8AF51A.In its inner setting brownout threshold, the first preset value, overvoltage threshold, the second preset value, temperature
Limit threshold value, lowest temperature threshold value and cross the reference values such as stream threshold value.
As shown in figs. 1 and 3, including power supply circuit 9 and battery voltage acquisition circuit 1, power supply circuit 9
Use L7805 chip, for circuit with stable power supply；Cell voltage circuit gathers current battery level signal.Voltage
Collection point connects anode, after R3 and R4 electric resistance partial pressure, then the capacitance-resistance filter through R5 and C4 composition
Device, is filtered signal, in the protection circuit being made up of two Diode series at D3, makes cell voltage
Acquisition Circuit 1 output is less than 3.3V, without damage with the pin protecting governor circuit 8, finally arrives master control electricity
The ADC acquisition port (22 pin) on road 8, by ADC modular converter integrated in governor circuit 8, will simulation electricity
Pressure signal is converted into data signal, then digital voltage signal is real-time transmitted to display circuit 4, for display circuit 4
Data show.
As shown in figs. 1 and 4, temperature collection circuit 2, by being contained in the temperature sensor outside car and in fuel tank, externally
In boundary's environment temperature and fuel tank, oil temperature detects in real time.Temperature sensor is respectively by first serial J1 and second string
Mouth J2 couples temperature collection circuit 2, is transmitted the temperature signal collected to governor circuit 8 by two paths.Car
The temperature signal of external environment is by the temperature sensor collection being connected with first serial J1, via C7, R7, C8 group
After the RC filter filtering become, then the protection circuit being made up of two Diode series at D4, make battery electricity
Pressure Acquisition Circuit 1 output is less than 3.3V, without damage with the pin protecting governor circuit 8, eventually arrives at master control
The ADC acquisition port (16 pin) of circuit 8；The temperature signal of fuel tank oil temperature is by the temperature being connected with second serial J2
Degree sensor collection, via C9, R9, C10 composition RC filter filtering after, then at D5 by two two
The protection circuit that pole pipe is composed in series, makes battery voltage acquisition circuit 1 output be less than 3.3V, to protect master control electricity
The pin on road 8 is without damage, eventually arrives at the ADC acquisition port (17 pin) of governor circuit 8；By master control electricity
ADC modular converter integrated in road 8, is converted into data signal by analog voltage signal, is finally transferred to display electricity
Road 4, for centralized displaying, facilitates the user's real-time monitoring to temperature.
As described in figures 1 and 5, intelligent power output circuit 6, use BTS50085 intelligent power in the present embodiment
Chip, the built-in integrated load of described BTS50085 smart power chip (being equivalent to the heating element heater of the present invention) is opened a way
And short-circuit detecting circuit, and state is real-time transmitted to governor circuit 8.In the present embodiment, intelligent power output electricity
The quantity on road 6 is two ((a) and (b) in Fig. 5), and the quantity of heating element heater also (is respectively coupled to for two parts
OUT1 and OUT2 end in figure), intelligent power output circuit 6 and heating element heater one_to_one corresponding are arranged, wherein one
Dividing heating element heater to be located in fuel tank, another part heating element heater is located in oil pipe.Wherein heating element heater is not necessarily a road
Exporting one, as long as at output electric current in allowed band, an intelligent power output circuit can meet multiple heating unit
Part, such as pipeline road are longer, can arrange multiple heating element heater.The input of each smart power chip is provided with intelligence
Energy power chip drive circuit 61, one end of smart power chip drive circuit 61 couples governor circuit 8, receives main
The output signal of control circuit 8, thus control being turned on or off of triode Q1, Q2, control corresponding intelligence with this
The work of energy power chip or stopping.The current sense function that smart power chip is internally integrated to being arranged in fuel tank and
The electric current of the heating element heater in oil pipe detects, and owing to output electric current is the biggest, the heating power of heating element heater is the biggest,
The heat simultaneously produced is the biggest, by the size of detection output electric current, can monitor the output work of heating element heater in real time
Rate size.Current collection circuit 3 is by the current sense function within smart power chip, through RC filter filtering
After, it is connected to the ADC acquisition port (respectively 20 and 21 pin) of governor circuit 8, by collection in governor circuit 8
The ADC modular converter become, is converted into data signal by analog voltage signal, is finally transferred to display circuit 4.Electricity
The output electric current of heating element heater is detected and shows in display circuit 4 by current detection circuit in real time, facilitates user
Real-time monitoring to electric current.
As shown in figs. 1 and 6, display circuit 4, use YXD-12864 liquid crystal module in the present embodiment, it leads to
Cross serial ports J4 and carry out data exchange with governor circuit 8.Display circuit 4 includes display driver circuit 41, its one end
Coupling governor circuit 8, receive the output signal of governor circuit 8, the other end couples serial ports J4, thus by master control electricity
The output signal on road 8 controls being turned on or off of triode Q4, controls the work of corresponding indicator lamp with this or stops,
Display circuit 4 is the centralized displaying of each parameter when system is run.
As illustrated in figures 1 and 7, data storage circuitry 5, use AT93C46 chip in the present embodiment, data are deposited
The information such as control system operational factor and fault, by pin-saving chip, are stored by storage circuit 5, to help to make
User grasps the ruuning situation of control system and fault location and ensuing service work further.
As shown in Figure 8, buzz circuit 7, including buzzer drive circuit 71 and buzzer SP1, control signal is by leading
Control chip output, amplifies rear drive by triode Q3 signal and controls buzzer SP1 execution corresponding actions.As one
Planting embodiment: during battery overvoltage/undervoltage, it is 1HZ that buzzer sound stops frequency；Output loading open circuit or short circuit, buzzer
It is 2HZ that sound stops frequency；Temperature sensor open circuit or short circuit, it is 3HZ that buzzer sound stops frequency.
The embodiment of the present invention provides a kind of automobile diesel oil heating intelligent control method, comprises the following steps:
S100: detection battery voltage signal, judges current electricity according to battery voltage signal, brownout threshold, overvoltage threshold
Whether pond is in under-voltage condition, overvoltage condition or normal operating conditions；
S200: if described battery is in under-voltage condition or overvoltage condition, does not the most allow heating element heats or stops heating；
According to temperature signal, S300: if described battery is in normal operating conditions, then judge that whether fuel tank oil temperature is less than temperature
Degree lower threshold；
S400: the most then enter and automatically heat operational mode.
Entering after automatically heating operational mode, oil the temperature inside the box constantly rises, when temperature signal is higher than temperature upper limit threshold value
Time, stop heating element heats.
S300 specifically includes following steps: whether detection battery voltage signal is higher than the first preset value and less than overvoltage
Threshold value or less than the second preset value and be higher than brownout threshold；The most then judge that fuel tank oil temperature is the lowest according to temperature signal
In lowest temperature threshold value.
When automotive control system is 12V system: when automobile diesel oil heating intelligence control system detects that cell voltage is low
When 11V the brownout threshold of 12V system (11V be), stop heating element heats immediately or do not allow heating, entering
Enter battery under-voltage protection function；During until voltage rises to 12V the first preset value of 12V system (12V be),
Whether detection temperature signal, less than lowest temperature threshold value, if so, enters and automatically heats operational mode；When motor vehicle diesel adds
Hot intelligence control system detects when cell voltage is higher than the 16V overvoltage threshold of 12V system (16V be), enters
Battery over-voltage protecting function, during until voltage drops to 15V the second preset value of 12V system (15V be), inspection
Whether testing temperature signal, less than lowest temperature threshold value, if so, enters and automatically heats operational mode.
When automotive control system is 24V system: when automobile diesel oil heating intelligence control system detects that cell voltage is low
When 21V the brownout threshold of 24V system (21V be), stop heating element heats immediately or do not allow heating,
Enter battery under-voltage protection function；During until voltage rises to 22V the first preset value of 24V system (22V be),
Whether detection temperature signal, less than lowest temperature threshold value, if so, enters and automatically heats operational mode；When motor vehicle diesel adds
Hot intelligence control system detects when cell voltage is higher than the 30V overvoltage threshold of 12V system (16V be), enters
Battery over-voltage protecting function, during until voltage drops to 29V the first preset value of 24V system (29V be), inspection
Whether testing temperature signal, less than lowest temperature threshold value, if so, enters and automatically heats operational mode.
In this embodiment, temperature upper limit threshold value is 30 DEG C, lowest temperature threshold value 5 DEG C, and temperature threshold scope is 5 DEG C
～30 DEG C, certainly, according to local environment, temperature upper limit threshold value and lowest temperature threshold value can be regulated accordingly.
By this control system, the Intelligent heating of motor vehicle diesel is managed, to ensure that the low temperature of diesel vehicle normally opens merit and fortune
The safe heating of the diesel oil fuel feeding of row overall process.
This intelligence control system possesses following functions:
1) cell voltage defencive function
When control system detects that cell voltage is less than brownout threshold, stop heating immediately, enter battery under-voltage protection
Function, during until voltage rises certain value, enters and automatically heats operational mode；When control system detects cell voltage
During higher than overvoltage threshold, stop heating immediately, enter battery over-voltage protecting function, during until voltage drops to certain value,
Enter and automatically heat operational mode.
(i.e. starting under-voltage or overvoltage protection) after entering this function, do not perform heating function, the display screen lower right corner is corresponding
Position display " battery undervoltage " or " battery overvoltage " printed words.
2) overcurrent protection function
This control system can require to set different load output overcurrent protection values according to difference, when control system detects
To electric current more than protection value time, stop load output, and in display screen show " fault ", facilitate user quickly to enter
Row fault location and maintenance.
3) electric current and temperature value are monitored in real time and show function
This control system passes through electric current and temperature signal collection circuit, after being processed by the data of main control chip, by electric current
Value and temperature value show in display screen in real time, to facilitate user to slap current system conditions running status in real time
Hold.
4) fault message detection and display function
When the corresponding signal Acquisition Circuit of this control system detects opening of temperature sensor open circuit, short circuit and output loading
Road, short circuit time, show dependent failure information the most immediately, with remind user carry out in time malfunction elimination and
Maintenance, it is ensured that the safe and reliable work of control system.The numerical value detected when temperature collection circuit is more than sensor parameters
In maximum time, now system judges that temperature sensor is opened a way, when the numerical value detected equal to zero time, now system
Judge temperature sensor short circuit；The open circuit of output loading is real-time by the built-in integrated detection circuit of smart power chip with short circuit
Send master chip to, and carried out the collection of dependent failure information by master chip.
This control system enters when automatically heating under operational mode, and along with the carrying out of heating, oil temperature constantly raises, now
If not carrying out temperature limiting, it is possible to can cause danger and personnel's injury, the therefore temperature acquisition electricity of this control system
Oil temperature temperature is monitored on road in real time, when oil temperature reaches 30 DEG C, stops adding thermal output.After simultaneously along with the stopping of heating,
Oil temperature temperature constantly reduces, it is possible to fuel oil occurs wax deposition phenomenon again, affects vehicle and runs, now temperature acquisition
Electric circuit inspection once less than 5 DEG C to temperature, starts and adds thermal output, and this automatic mode is by operating above mode circulation industrial
Make, the realization of the automatic unmanned Based Intelligent Control of this control system, it is ensured that vehicle run economy, safe and reliable,
Stable.
Particular embodiments described above, has been carried out further the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, it will be appreciated that the foregoing is only the specific embodiment of the present invention, be not intended to limit the present invention
Protection domain.Particularly point out, to those skilled in the art, all within the spirit and principles in the present invention,
Any modification, equivalent substitution and improvement etc. done, should be included within the scope of the present invention.
Claims (10)
1. an automobile diesel oil heating intelligence control system, it is characterised in that include,
Battery voltage acquisition circuit, Real-time Collection current battery level signal；
Temperature collection circuit, described temperature collection circuit connects temperature sensor, by temperature sensor in real time to fuel tank
Oil temperature carries out temperature signal collection；
Governor circuit, couples described battery voltage acquisition circuit and described temperature collection circuit, set brownout threshold, the
One preset value, overvoltage threshold, the second preset value, temperature upper limit threshold value and lowest temperature threshold value, by temperature signal and temperature
Degree upper limit threshold and lowest temperature threshold value compare, by comparing the corresponding working signal of output；
Intelligent power output circuit, couples described governor circuit, makes heating element heater start according to working signal or turns off；
When battery voltage signal is less than brownout threshold, heating element heater stops heating；When higher than the first preset value and meet
When temperature signal is less than lowest temperature threshold value, heating element heater starts to start heating, if temperature signal is higher than temperature upper limit threshold
Value, heating element heater stops heating；When battery voltage signal is higher than overvoltage threshold, heating element heater stops heating；When low
In the second preset value and meet temperature signal less than lowest temperature threshold value time, heating element heater restarts heating, if temperature
Signal is higher than temperature upper limit threshold value, and heating element heater stops heating.
Automobile diesel oil heating intelligence control system the most according to claim 1, it is characterised in that also include electricity
Stream Acquisition Circuit, couples described governor circuit and described intelligent power output circuit, Real-time Collection intelligent power output electricity
The current signal of road output, by the power output of current signal monitoring heating element heater, described governor circuit set stream
Threshold value, when current signal was more than stream threshold value, then stops heating element heater output.
Automobile diesel oil heating intelligence control system the most according to claim 1, it is characterised in that also include number
According to storage circuit, couple described governor circuit, for this system operational parameters and the storage of fault message.
Automobile diesel oil heating intelligence control system the most according to claim 1, it is characterised in that also include honeybee
Ring circuit, couples described governor circuit, when this system jam, is believed by alternative sounds prompting different faults
Breath.
5. according to the arbitrary described automobile diesel oil heating intelligence control system of Claims 1 to 4, it is characterised in that also
Including display circuit, couple governor circuit, the centralized displaying of each parameter when this system is run.
Automobile diesel oil heating intelligence control system the most according to claim 1, it is characterised in that if also including
Dry protection circuit, one of them described protection circuit couples the output of battery voltage acquisition circuit, described in one of them
Protection circuit couples the output of temperature collection circuit.
Automobile diesel oil heating intelligence control system the most according to claim 1, it is characterised in that described intelligence
The quantity of power output circuit is two, and one of them intelligent power output circuit couples at least one and is located in fuel tank
Heating element heater, another intelligent power output circuit couples at least one heating element heater being located in oil pipe.
8. an automobile diesel oil heating intelligent control method, it is characterised in that comprise the following steps:
Whether detection battery voltage signal, judge present battery according to battery voltage signal, brownout threshold, overvoltage threshold
It is in under-voltage condition, overvoltage condition or normal operating conditions；
If described battery is in under-voltage condition or overvoltage condition, does not the most allow heating element heats or stop heating；
If described battery is in normal operating conditions, then judge that whether fuel tank oil temperature is less than lowest temperature according to temperature signal
Threshold value；
The most then enter and automatically heat operational mode.
Automobile diesel oil heating intelligent control method the most according to claim 8, it is characterised in that if described institute
State battery and be in normal operating conditions, then judge that whether fuel tank oil temperature is less than lowest temperature threshold value, tool according to temperature signal
Body comprises the following steps:
Whether detection battery voltage signal is higher than the first preset value and less than overvoltage threshold or the highest less than the second preset value
In brownout threshold；
The most then judge that whether fuel tank oil temperature is in temperature upper limit threshold value and the scope of lowest temperature threshold value according to temperature signal
In.
Automobile diesel oil heating intelligent control method the most according to claim 9, it is characterised in that
When automotive control system is 12V system:
When automobile diesel oil heating intelligence control system detects that cell voltage is less than 11V, stop heating element heater immediately
Heat or do not allow heating, entering battery under-voltage protection function；During until voltage rises to 12V, detection temperature letter
Number whether less than lowest temperature threshold value, the most then enter and automatically heat operational mode；When automobile diesel oil heating intelligence control
System processed detects when cell voltage is higher than 16V, enters battery over-voltage protecting function, until voltage drops to 15V
Time, whether detection temperature signal, less than lowest temperature threshold value, if so, enters and automatically heats operational mode.
When automotive control system is 24V system:
When automobile diesel oil heating intelligence control system detects that cell voltage is less than 21V, stop heating element heater immediately
Heat or do not allow heating, entering battery under-voltage protection function；During until voltage rises to 22V, detection temperature letter
Number whether less than lowest temperature threshold value, if so, enter and automatically heat operational mode；When automobile diesel oil heating Based Intelligent Control
System detects when cell voltage is higher than 30V, enters battery over-voltage protecting function, during until voltage drops to 29V,
Whether detection temperature signal, less than lowest temperature threshold value, if so, enters and automatically heats operational mode.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451783A (en) * | 2016-11-04 | 2017-02-22 | 浙江中科正方电子技术有限公司 | Remotely controllable power distribution control circuit |
| CN108930612A (en) * | 2017-05-27 | 2018-12-04 | 罗伯特·博世有限公司 | Fuel injection device and fuel heating means |
| CN113898503A (en) * | 2021-09-23 | 2022-01-07 | 东风越野车有限公司 | Fuel heating control system and equipment |
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