CN105971797A - Automobile starting protection method and system - Google Patents
Automobile starting protection method and system Download PDFInfo
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- CN105971797A CN105971797A CN201610534802.XA CN201610534802A CN105971797A CN 105971797 A CN105971797 A CN 105971797A CN 201610534802 A CN201610534802 A CN 201610534802A CN 105971797 A CN105971797 A CN 105971797A
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- engine
- signal
- starting time
- starter
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-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0803—Circuits or control means specially adapted for starting of engines characterised by means for initiating engine start or stop
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0803—Circuits or control means specially adapted for starting of engines characterised by means for initiating engine start or stop
- F02N11/0811—Circuits or control means specially adapted for starting of engines characterised by means for initiating engine start or stop using a timer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0848—Circuits or control means specially adapted for starting of engines with means for detecting successful engine start, e.g. to stop starter actuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0862—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
- F02N2200/021—Engine crank angle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
- F02N2200/022—Engine speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/06—Parameters used for control of starting apparatus said parameters being related to the power supply or driving circuits for the starter
- F02N2200/063—Battery voltage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/08—Parameters used for control of starting apparatus said parameters being related to the vehicle or its components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/08—Parameters used for control of starting apparatus said parameters being related to the vehicle or its components
- F02N2200/0802—Transmission state, e.g. gear ratio or neutral state
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/12—Parameters used for control of starting apparatus said parameters being related to the vehicle exterior
- F02N2200/121—Atmospheric pressure, e.g. for determination of geodetic height
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention relates to the technical field of automobiles, in particular to an automobile starting protection method and system. The automobile starting protection method comprises the following steps of detecting whether a starting request meets the automobile starting condition or not after the starting request of a user is received, and acquiring an external environment signal in a real-time manner; if the starting request meets the automobile starting condition, starting a starter, recording the starting time, and acquiring the rotational speed of an engine in a real-time manner; obtaining the releasing rotational speed of the engine through calculation according to the external environment signal; and if the current rotational speed of the engine is equal to the releasing rotational speed of the engine, obtained through calculation, or the starting time reaches the starting time threshold value, stopping the starter. Through the adoption of the automobile starting protection method and system, the service life of the automobile starter is prolonged.
Description
Technical field
The present invention relates to automobile technical field, particularly to a kind of automobile start guard method and system.
Background technology
The starting of automobile is to be driven engine crankshaft rotation by starter as initial power source, thus real
Existing automobile start, but during automobile start, due to some offices of starter itself in prior art
Sex-limited, it is possible that starter excessive load damages, vehicle Fraquent start are unsuccessful, starter in reality
The faults such as the life-span is too short.
Specifically, above-mentioned limitation includes:
1) starter electric current when controlling electromotor and starting is very big, and prior art starting the longest to vehicle
Time is unrestricted, therefore has a significant impact the life-span of starter itself.
2) different due to the applying working condition of vehicle, starter should exit after electromotor successful ignition in time,
But the disengagement rotating speed (i.e. the rotating speed of electromotor during vehicle successful ignition) of most starters is discontented with in reality
Foot working condition requirement, causes starter service life reduction.
3) in prior art, being empirical value owing to disengaging rotating speed, this empirical value does not meets actual condition and sets
When putting less, vehicle Fraquent start can be caused unsuccessful.
4) the longest starting time that starter allows is certain value, does not considers the change of actual condition, very
Easily cause starter overload and damage.
5) the disengagement rotating speed of electromotor and engine water temperature, atmospheric pressure etc. are without corresponding relation, make to start
The excessive starter that easily causes of disengagement speed error of machine exits not in time, thus occurs beating tooth phenomenon,
Have a strong impact on the starter life-span.
Summary of the invention
The invention provides a kind of automobile start guard method and system, to extend making of automobile starter
Use the life-span.
To achieve these goals, the technical scheme is that
A kind of automobile start guard method, comprises the following steps:
After receiving the start request of user, detect whether to meet vehicle launch condition, and Real-time Collection
External environment condition signal；
If meeting vehicle launch condition, then starter, and record the starting time, obtain in real time
Engine speed；
It is calculated disengaged engine rotating speed according to environment nowadays signal；
If present engine rotating speed is equal to calculated disengaged engine rotating speed or described starting time
Reach starting time threshold value, then stop machine.
Preferably, described meet vehicle launch condition and include:
Ignition lock START gear switch is in closure state, and the set of clutch pedal switch signal
Or the set of neutral gear signal or P shelves signal set.
Preferably, described method includes:
Described starting time threshold value is setting value.
Preferably, described method also includes:
Real-time Collection battery tension sensor values；
After starter, according to environment nowadays signal and current battery tension sensor values meter
Calculation obtains described starting time threshold value.
Preferably, described calculate according to environment nowadays signal and current battery tension sensor values
Obtain described starting time threshold value to include:
Obtain that described external environment condition signal is corresponding by lookup table mode according to environment nowadays signal
One starting time；
Obtain described battery tension according to current battery tension sensor values by lookup table mode to sense
The second starting time that device value is corresponding；
Described first starting time is obtained described starting time thresholding with described second starting time summation
Value.
Preferably, described external environment condition signal includes:
Barometric pressure sensor value, coolant temperature sensor value.
Preferably, described it be calculated disengaged engine rotating speed according to environment nowadays signal and include:
Lookup table mode is passed through according to current atmospheric pressure sensor values, described cooling-water temperature sensor value
Obtain the disengaged engine that described barometric pressure sensor value is corresponding with described cooling-water temperature sensor value
Rotating speed.
A kind of automobile start protection system, including: starter, control unit of engine and respectively with
Described control unit of engine electrical connection ignition lock START gear switch, crankshaft position sensor, rise
Motivation relay；Described cranking-motor relay electrically connects with described starter, is used for controlling described starting
Machine；Described ignition lock START gear switch electrically connects with described control unit of engine, starts for described
Machine control unit provides ignition lock START gear switch signal；Described system also includes: respectively with described
External environment condition sensor, clutch pedal switch or the driving switch of control unit of engine electrical connection；
Described control unit of engine detects after meeting vehicle launch condition, by controlling described starting relay
Device makes starter start, and records the starting time, obtains sending out of described crankshaft position sensor collection in real time
Motivation rotating speed, is calculated disengaged engine according to the external environment condition signal that external environment condition sensor provides
Rotating speed；In described starter starting process, if described engine speed takes off equal to described electromotor
Open rotating speed or the described starting time reaches starting time threshold value, stop by controlling described starter relay
Only starter.
Preferably, described vehicle launch condition includes:
Ignition lock START gear switch is in closure state, and the set of clutch pedal switch signal
Or the set of neutral gear signal or P shelves signal set.
Preferably, described starting time threshold value is setting value.
Preferably, described system also includes:
Storage battery pressure sensor；Described storage battery pressure sensor and described control unit of engine electricity
Connect, provide battery tension sensor values for control unit of engine, so that control unit of engine
After starter, calculate with current battery tension sensor values according to environment nowadays signal
Obtain described starting time threshold value.
The beneficial effects of the present invention is:
The automobile start guard method of embodiment of the present invention offer and system, please in the starting receiving user
After asking, detect whether to meet vehicle launch condition, and Real-time Collection external environment condition signal；If met
Vehicle launch condition, then starter, and record the starting time, obtain engine speed in real time；
It is calculated disengaged engine rotating speed according to environment nowadays signal；If present engine rotating speed etc.
Reach starting time threshold value in calculated disengaged engine rotating speed or described starting time, then stop
Only starter.By the present invention, extend the service life of automobile starter.
Accompanying drawing explanation
Fig. 1 is a kind of flow chart of embodiment of the present invention automobile start guard method.
Fig. 2 is the another kind of flow chart of embodiment of the present invention automobile start guard method.
Fig. 3 is a kind of structural representation of embodiment of the present invention automobile start protection system.
Detailed description of the invention
In order to make those skilled in the art can be further understood that inventive feature and technology contents, under
Face combines drawings and embodiments and elaborates the embodiment of the present invention.
A kind of flow chart of embodiment of the present invention automobile start guard method as shown in Figure 1, including with
Lower step:
Step 101: start.
Step 102: after receiving the start request of user, Real-time Collection external environment condition signal, perform
Step 103.
Specifically, external environment condition signal includes: barometric pressure sensor value, cooling-water temperature sensor
Value.It should be noted that barometric pressure sensor value can control single by being placed on described electromotor
The barometric pressure sensor on the surface of unit obtains, and barometric pressure sensor can be with Real-time Collection Current vehicle
The atmospheric pressure of control unit of engine.Cooling-water temperature sensor value can be cold by being placed on electromotor
But the cooling-water temperature sensor at water out obtains, and cooling-water temperature sensor can be worked as with Real-time Collection
The water temperature of front engine cooling water.
It should be noted that in the embodiment of the present invention, barometric pressure sensor value needs at atmospheric pressure
In the air pressure detection range (i.e. the normal range of operation of barometric pressure sensor) of sensor, cool down water
Temperature sensor value needs the water temperature detection range at cooling-water temperature sensor, and (i.e. cooling water temperature passes
Sensor normal range of operation) in；Such as, air pressure detection range is (0,2*105Pa), water temperature inspection
Survey scope is (-100 DEG C, 200 DEG C).
Step 103: detect whether to meet vehicle launch condition；If it is, perform step 104；Otherwise,
Return step 103.
Specifically, in the embodiment of the present invention, meet vehicle launch condition and include:
Ignition lock START gear switch is in closure state, and the set of clutch pedal switch signal
Or the set of neutral gear signal or P shelves signal set.
In the embodiment of the present invention, clutch pedal switch signal can be provided by clutch pedal switch,
Neutral gear signal can be provided by driving switch with P shelves signal, and the present invention can for automatic transmission with
Manual two kinds of vehicles carry out vehicle launch conditional judgment:
Specifically, after the startup receiving user is asked, control unit of engine is for manual vehicle
Predominantly detect ignition lock START gear switch and whether be in closure state and clutch pedal switch carries
The clutch pedal switch signal set the most of confession.The set of clutch pedal switch signal, represents
Clutch pedal is operated；The non-set of clutch pedal switch signal, represents that clutch pedal is not stepped on.
Specifically, after the startup receiving user is asked, control unit of engine is for automatic transmission vehicle
Predominantly detect whether ignition lock START gear switch is in closure state and neutral gear signal or P shelves signal
Set the most.Neutral gear signal or P shelves signal can be obtained by the driving switch on vehicle, and this
In bright embodiment, driving switch is neutral switch or P gear switch, and neutral switch provides space signal, P
Gear switch provides P shelves signal.Just need for automotive vehicle to detect neutral gear signal or P shelves signal, hands
Dynamic shelves vehicle is without detecting neutral gear signal or P shelves signal.
Step 104: starter, performs step 105.
Specifically, in the embodiment of the present invention, starter can be electrically connected with starter by control
Cranking-motor relay realize.Such as adhesive cranking-motor relay, then starter starts.
Step 105: record starting time, performs step 106.
Step 106: obtain engine speed in real time, performs step 107.
Step 107: be calculated disengaged engine rotating speed according to environment nowadays signal, perform step
Rapid 108.
Specifically, in step 107, it is calculated disengaged engine according to environment nowadays signal and turns
Speed includes: according to current atmospheric pressure sensor values, described cooling-water temperature sensor value by tabling look-up
Mode obtains the electromotor that described barometric pressure sensor value is corresponding with described cooling-water temperature sensor value
Disengage rotating speed.
In the embodiment of the present invention, by the relevant form of the disengaged engine rotating speed that lookup table mode obtains
As shown in table 1, this table 1 is according to different barometric pressure sensor values, different cooling water temperature sensing
In the case of device value, the minimum speed during engine ignition success obtained, this form is tested through various
Card, has certain suitability.When using table 1, if current atmospheric pressure sensor values or current
Cooling-water temperature sensor value, can be by interpolation calculation to the current work of vehicle not in the range of form
Under condition, (i.e. current atmospheric pressure sensor values with cooling-water temperature sensor value in the case of) disengages rotating speed
(unit is rpm).
Table 1
Step 108: whether detection present engine rotating speed is equal to calculated disengaged engine rotating speed；
If it does not, perform step 109；No person, performs step 110.
Step 109: whether the detection starting time reaches starting time threshold value；If it is, perform step
Rapid 120；No person, returns and performs step 106.
It should be noted that in the embodiment of the present invention, starting time threshold value can be setting value (ratio
If setting value is 50s), it is also possible to it is according to storage battery pressure sensor and environment nowadays signal meter
The value obtained, and concrete real as shown in Figure 2 by the control flow being calculated starting time threshold value
Execute example.
Step 110: stop machine.
The automobile start guard method that the embodiment of the present invention provides, after starter starts, when record starts
Between, obtain engine speed in real time, be calculated disengaged engine according to environment nowadays signal and turn
Speed, and reach starting time door in engine speed equal to disengaged engine rotating speed or described starting time
During limit value, stop machine, makes the control of starter more meet actual condition, thus improves automobile
The service life of starter.
In order to improve the starting effect of automobile starter, in the embodiment of the present invention, it is also possible to by rising
The improvement of motivation the longest starting time (i.e. starting time threshold value in the present invention) makes rising of starter
Start building more to meet actual condition, improve the service life of automobile starter further.As shown in Figure 2
It is the another kind of flow chart of embodiment of the present invention automobile start guard method, comprises the following steps:
Step 201: start.
Step 202: after receiving the start request of user, Real-time Collection external environment condition signal, perform
Step 203.
Step 203: Real-time Collection battery tension sensor values, performs step 204.
It should be noted that in the embodiment of the present invention, battery tension sensor values can be by being placed on
Storage battery pressure sensor at accumulator terminal obtains.Further, battery tension sensor values needs
Will be in battery tension sensor voltage detection range (battery tension normal operation of sensor scope)
In, such as, reference voltage detection is (0,40V).
Step 204: detect whether to meet vehicle launch condition；If it is, perform step 205；Otherwise,
Return step 204.
Step 205: starter, performs step 206.
Step 206: record starting time, performs step 207.
Step 207: obtain engine speed in real time, performs step 208.
Step 208: be calculated disengaged engine rotating speed according to environment nowadays signal, perform step
Rapid 209.
Step 209: whether detection present engine rotating speed is equal to calculated disengaged engine rotating speed；
If it does not, perform step 210；No person, performs step 212.
Step 210: calculate with current battery tension sensor values according to environment nowadays signal
To described starting time threshold value, perform step 211.
Specifically, in step 210, described according to environment nowadays signal and current battery tension
Sensor values is calculated described starting time threshold value and includes:
Obtain that described external environment condition signal is corresponding by lookup table mode according to environment nowadays signal
One starting time；Look into according to current battery tension sensor values and obtain described electric power storage by lookup table mode
The second starting time that cell voltage sensor values is corresponding；By described first starting time with described second
Dynamic temporal summation obtains described starting time threshold value.
In the embodiment of the present invention, the form that the first starting time t1 obtained by lookup table mode is correlated with is such as
Shown in table 2, this table 2 is according to different barometric pressure sensor values, different cooling-water temperature sensor
The shortest first starting time being worth to, this form verifies have certain suitability through various.
When using table 2, if current atmospheric pressure sensor values or current cooling-water temperature sensor value do not exist
In the range of form, it is possible to use under interpolation calculation to vehicle current working, (i.e. current atmospheric pressure passes
In the case of sensor value and cooling-water temperature sensor value) the first starting time t1 (unit is s).
Table 2
It should be noted that in the embodiment of the present invention, the second starting time obtained by lookup table mode
Form relevant for t2 is as shown in table 3, and this table 3 is worth to according to different batteries voltage sensor
The shortest second starting time t2, this form verifies have certain suitability through various.Use
During table 3, if current battery tension sensor values is not in the range of form, it is possible to use interpolation method
Calculate the second starting (in the case of i.e. current battery tension sensor values) under vehicle current working
Time t2 (unit is s).
Table 3
| Battery tension sensor values (v) | Time (s) |
| 8 | T2=4 |
| 10 | T2=4 |
| 14 | T2=5 |
| 16 | T2=5 |
Step 211: whether the detection starting time reaches starting time threshold value；If it is, perform step
Rapid 212；No person, returns and performs step 207.
Step 212: stop machine.
The automobile start guard method that the embodiment of the present invention provides, after starter starts, records starter
Starting time, be calculated disengaged engine rotating speed according to environment nowadays signal, according to currently
External environment condition signal and current battery tension sensor values are calculated described starting time threshold value,
And it is equal to starting time thresholding in engine speed equal to disengaged engine rotating speed or starter starting time
During value, stop machine, makes the control of starter more meet actual condition, thus further increases
The service life of automobile starter.
It should be noted that for said method, the embodiment of the present invention additionally provides a kind of automobile start
Protection system, is the structure chart of embodiment of the present invention automobile start protection system as shown in Figure 3, automobile
Opposed-voltage protective system includes: starter, control unit of engine and control with described electromotor respectively
The ignition lock START gear switch of unit electrical connection, crankshaft position sensor, cranking-motor relay；Institute
State cranking-motor relay to electrically connect with described starter, be used for controlling described starter；Described ignition lock
START gear switch electrically connects with described control unit of engine, provides for described control unit of engine
Ignition lock START gear switch signal；Automobile start protection system also includes: respectively with described electromotor
External environment condition sensor, clutch pedal switch or the driving switch of control unit electrical connection；Described
Motivation control unit detects after meeting vehicle launch condition, has made by controlling described starter relay
Engine start, records the starting time, and the electromotor obtaining described crankshaft position sensor collection in real time turns
Speed, is calculated disengaged engine rotating speed according to the external environment condition signal that external environment condition sensor provides；
In described starter starting process, if described engine speed is equal to described disengaged engine rotating speed
Or described starting time reaches starting time threshold value, stop by controlling described starter relay
Machine.
It should be noted that the embodiment of the present invention says that the driving switch referred to is: neutral switch or P shelves are opened
Close.The present invention is directed to automatic transmission and manual two kinds of vehicles；After the startup receiving user is asked, send out
Whether motivation control unit predominantly detects ignition lock START gear switch for manual vehicle and is in and closes
The clutch pedal switch signal set the most that conjunction state and clutch pedal switch provide；Work as receipts
After the startup request of user, control unit of engine predominantly detects ignition lock for automatic transmission vehicle
Whether START gear switch is in closure state and the neutral gear signal of driving switch offer or P shelves signal
Set the most.
Specifically, described vehicle launch condition includes:
Ignition lock START gear switch is in closure state, and the set of clutch pedal switch signal
Or the set of neutral gear signal or P shelves signal set.
Specifically, described starting time threshold value can be setting value, such as setting value be 50s.
Specifically, in the embodiment of the present invention, external environment condition sensor controls for being placed on described electromotor
The barometric pressure sensor on the surface of unit and the cooling water temperature being placed on engine cooling water exit
Sensor, and the external environment condition signal that external environment condition sensor provides includes: barometric pressure sensor value,
Cooling-water temperature sensor value.It should be noted that barometric pressure sensor value is by being placed on described sending out
The barometric pressure sensor on the surface of motivation control unit obtains, and barometric pressure sensor can be adopted in real time
The atmospheric pressure of collection Current vehicle control unit of engine.Cooling-water temperature sensor value is started by being placed on
Cooling-water temperature sensor at machine coolant outlet obtains, and cooling-water temperature sensor can be adopted in real time
The water temperature of collection present engine cooling water.
It should be noted that in the embodiment of the present invention, barometric pressure sensor value needs at atmospheric pressure
In the air pressure detection range (i.e. the normal range of operation of barometric pressure sensor) of sensor, cool down water
Temperature sensor value needs the water temperature detection range at cooling-water temperature sensor, and (i.e. cooling water temperature passes
Sensor normal range of operation) in；Such as, air pressure detection range is (0,2*105Pa), water temperature inspection
Survey scope is (-100 DEG C, 200 DEG C).
In the embodiment of the present invention, disengaged engine rotating speed can calculate according to environment nowadays signal
Arriving, specifically, engine controller is according to current atmospheric pressure sensor values, described cooling water temperature
Sensor values obtains described barometric pressure sensor value by lookup table mode and senses with described cooling water temperature
The disengaged engine rotating speed that device value is corresponding.
It should be noted that in the embodiment of the present invention, obtained by lookup table mode and disengaged engine
The form that rotating speed is relevant is as shown in table 1, and this table 1 is according to different barometric pressure sensor value, differences
In the case of cooling-water temperature sensor value, the minimum speed during engine ignition success obtained, this table
Lattice verify have certain suitability through various.When using table 1, if current atmospheric pressure
Sensor values or current cooling-water temperature sensor value, not in the range of form, can pass through interpolation method meter
Calculate (i.e. current atmospheric pressure sensor values and cooling-water temperature sensor value feelings under vehicle current working
Under condition) disengage rotating speed (unit is rpm).
In another embodiment of the present invention, starting time threshold value is not setting value but according to working as
Front storage battery pressure sensor and the calculated value of environment nowadays signal, specifically, the present invention
Embodiment also includes: storage battery pressure sensor；Described storage battery pressure sensor and described electromotor
Control unit electrically connects, and provides battery tension sensor values for control unit of engine, so that starting
Machine control unit, after starter, passes with current battery tension according to environment nowadays signal
Sensor value is calculated described starting time threshold value.
It should be noted that storage battery pressure sensor can be placed at accumulator terminal, examine in real time
Survey battery tension.Further, the battery tension value that storage battery pressure sensor provides needs storing
In battery voltage sensor reference voltage detection (battery tension normal operation of sensor scope), than
As, reference voltage detection is (0,40V).
Further, described calculate according to environment nowadays signal and current battery tension sensor values
Obtain described starting time threshold value to include:
Obtain that described external environment condition signal is corresponding by lookup table mode according to environment nowadays signal
One starting time；Described accumulator is obtained by lookup table mode according to current battery tension sensor values
The second starting time that voltage sensor value is corresponding；Described first starting time is started with described second
Temporal summation obtains described starting time threshold value.
In the embodiment of the present invention, the form that the first starting time t1 obtained by lookup table mode is correlated with is such as
Shown in table 2, this table 2 is according to different barometric pressure sensor values, different cooling-water temperature sensor
The shortest first starting time being worth to, this form verifies have certain suitability through various.
When using table 2, if current atmospheric pressure sensor values or current cooling-water temperature sensor value do not exist
In the range of form, it is possible to use interpolation calculation obtains (i.e. current atmospheric pressure under vehicle current working
In the case of sensor values and cooling-water temperature sensor value) the first starting time t1 (unit is s).
It should be noted that in the embodiment of the present invention, the second starting time obtained by lookup table mode
The relevant form of t2 is as shown in table 3, and this table 3 is to be worth to according to different batteries voltage sensor
The shortest second starting time, this form through various verify, there is certain suitability.Use
During table 3, if current battery tension sensor values is not in the range of form, it is possible to use interpolation method
Calculate the second starting (in the case of i.e. current battery tension sensor values) under vehicle current working
Time t2 (unit is s).
The automobile start protection system that the embodiment of the present invention provides, control unit of engine detects satisfied
After vehicle launch condition, make starter start by controlling described starter relay, record the starting time,
Obtain the engine speed that described crankshaft position sensor gathers in real time, carry according to external environment condition sensor
The external environment condition signal of confession is calculated disengaged engine rotating speed；In described starter starting process,
If described engine speed reaches to start equal to described disengaged engine rotating speed or described starting time
Between threshold value, stop machine by controlling described starter relay, by the present invention, make starter
Control more meet actual condition, thus improve the service life of starter.
In sum, the automobile start guard method of embodiment of the present invention offer and system, starter rises
After Dong, the starting time of record starter, it be calculated electromotor according to environment nowadays signal and take off
Open rotating speed, be calculated according to environment nowadays signal and current battery tension sensor values described
Starting time threshold value, and in engine speed equal to disengaged engine rotating speed or starter starting time
During equal to starting time threshold value, stop machine, makes the control of starter more meet actual condition,
Thus further increase the service life of automobile starter.
Above the embodiment of the present invention is described in detail, detailed description of the invention pair used herein
The present invention is set forth, the explanation of above example be only intended to help to understand the system of the present invention and
Method；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, concrete real
Executing and all will change in mode and range of application, in sum, this specification content should not be understood
For limitation of the present invention.
Claims (11)
1. an automobile start guard method, it is characterised in that comprise the following steps:
After receiving the start request of user, detect whether to meet vehicle launch condition, and Real-time Collection
External environment condition signal；
If meeting vehicle launch condition, then starter, and record the starting time, obtain in real time
Engine speed；
It is calculated disengaged engine rotating speed according to environment nowadays signal；
If present engine rotating speed is equal to calculated disengaged engine rotating speed or described starting time
Reach starting time threshold value, then stop machine.
Automobile start guard method the most according to claim 1, it is characterised in that described satisfied
Vehicle launch condition includes:
Ignition lock START gear switch is in closure state, and the set of clutch pedal switch signal
Or the set of neutral gear signal or P shelves signal set.
Automobile start guard method the most according to claim 1, it is characterised in that described method
Including:
Described starting time threshold value is setting value.
Automobile start guard method the most according to claim 1, it is characterised in that described method
Also include:
Real-time Collection battery tension sensor values；
After starter, according to environment nowadays signal and current battery tension sensor values meter
Calculation obtains described starting time threshold value.
Automobile start guard method the most according to claim 4, it is characterised in that described basis
Environment nowadays signal and current battery tension sensor values are calculated described starting time thresholding
Value includes:
Obtain that described external environment condition signal is corresponding by lookup table mode according to environment nowadays signal
One starting time；
Obtain described battery tension according to current battery tension sensor values by lookup table mode to sense
The second starting time that device value is corresponding；
Described first starting time is obtained described starting time thresholding with described second starting time summation
Value.
6. according to the automobile start guard method described in any one of claim 1-5, it is characterised in that
Described external environment condition signal includes:
Barometric pressure sensor value, coolant temperature sensor value.
Automobile start guard method the most according to claim 6, it is characterised in that described basis
Environment nowadays signal is calculated disengaged engine rotating speed and includes:
Lookup table mode is passed through according to current atmospheric pressure sensor values, described cooling-water temperature sensor value
Obtain the disengaged engine that described barometric pressure sensor value is corresponding with described cooling-water temperature sensor value
Rotating speed.
8. an automobile start protection system, including: starter, control unit of engine and difference
The ignition lock START gear switch that electrically connects with described control unit of engine, crankshaft position sensor,
Cranking-motor relay；Described cranking-motor relay electrically connects with described starter, is used for controlling described rising
Motivation；Described ignition lock START gear switch electrically connects with described control unit of engine, for described
Motivation control unit provides ignition lock START gear switch signal；It is characterized in that, described system is also wrapped
Include: the external environment condition sensor, the clutch pedal that electrically connect with described control unit of engine respectively are opened
Close or driving switch；Described control unit of engine detects after meeting vehicle launch condition, by control
Making described starter relay makes starter start, and records the starting time, obtains described crank position in real time
The engine speed of sensor acquisition, calculates according to the external environment condition signal that external environment condition sensor provides
Obtain disengaged engine rotating speed；In described starter starting process, if described engine speed etc.
Starting time threshold value is reached, by controlling institute in described disengaged engine rotating speed or described starting time
State starter relay to stop machine.
Automobile start the most according to claim 8 protection system, it is characterised in that described vehicle
Starting conditions includes:
Ignition lock START gear switch is in closure state, and the set of clutch pedal switch signal
Or the set of neutral gear signal or P shelves signal set.
Automobile start the most according to claim 9 protection system, it is characterised in that described
Dynamic time gate limit value is setting value.
11. automobile start according to claim 9 protection systems, it is characterised in that described system
System also includes:
Storage battery pressure sensor；Described storage battery pressure sensor and described control unit of engine electricity
Connect, provide battery tension sensor values for control unit of engine, so that control unit of engine
After starter, calculate with current battery tension sensor values according to environment nowadays signal
Obtain described starting time threshold value.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610534802.XA CN105971797A (en) | 2016-07-07 | 2016-07-07 | Automobile starting protection method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610534802.XA CN105971797A (en) | 2016-07-07 | 2016-07-07 | Automobile starting protection method and system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610534802.XA Pending CN105971797A (en) | 2016-07-07 | 2016-07-07 | Automobile starting protection method and system |
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| CN110073096A (en) * | 2016-12-15 | 2019-07-30 | 博格华纳公司 | System with multiple starters and intelligent relay |
| CN110966130A (en) * | 2019-12-09 | 2020-04-07 | 三一重机有限公司 | Starting motor protection method and device, engineering machinery and storage medium |
| CN111058953A (en) * | 2019-12-28 | 2020-04-24 | 潍柴动力股份有限公司 | Engine starting system, engine and engine starting method |
| CN113864095A (en) * | 2021-09-29 | 2021-12-31 | 广西玉柴机器股份有限公司 | Method for controlling overheat protection of starter of electric control diesel engine |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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