CN110173518A - The control system and method for automatic clutch overload protection - Google Patents
The control system and method for automatic clutch overload protection Download PDFInfo
- Publication number
- CN110173518A CN110173518A CN201910444822.1A CN201910444822A CN110173518A CN 110173518 A CN110173518 A CN 110173518A CN 201910444822 A CN201910444822 A CN 201910444822A CN 110173518 A CN110173518 A CN 110173518A
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- Prior art keywords
- control unit
- electronic control
- torque
- clutch
- driving gear
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/1002—Output torque
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/18—Control of the engine output torque
- F02D2250/26—Control of the engine output torque by applying a torque limit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/10—System to be controlled
- F16D2500/104—Clutch
- F16D2500/10443—Clutch type
- F16D2500/10481—Automatic clutch, e.g. centrifugal masses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/10—System to be controlled
- F16D2500/106—Engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/10—System to be controlled
- F16D2500/11—Application
- F16D2500/1107—Vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/308—Signal inputs from the transmission
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/50—Problem to be solved by the control system
- F16D2500/502—Relating the clutch
- F16D2500/50287—Torque control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/50—Problem to be solved by the control system
- F16D2500/51—Relating safety
Abstract
The present invention discloses the control system and method for a kind of automatic clutch overload protection; it include: after torque monitoring module drives the torque value of gear generation in monitoring vehicle traveling process; torque value is sent to engine electronic control unit and clutch electronic control unit; so that clutch electronic control unit judges to drive whether gear overloads according to torque value, holdback clutch operation is executed in overload and issues drop in overload and turns round signal；For engine electronic control unit when detecting that clutch electronic control unit issues drop torsion signal, control driving gear carries out drop torsion.The present invention between power-driven mechanism and mechanism loading by being arranged dedicated torque parameter sensor; realize reliable data acquisition monitoring; automatic clutch control unit problem itself is avoided to lead to not complete overload protection; overload protection is realized from automatic clutch control unit itself, engine electronic control unit torque output two roads of control, it is relatively reliable.
Description
Technical field
Vehicle chassis field of the present invention more particularly to a kind of control system and method for automatic clutch overload protection.
Background technique
Automatic clutch (sometimes referred to as " electric clutch ") is the device applied in manual gear vehicle, briefly
It is exactly to realize manual gear vehicle by increasing electronic control unit, driving and actuator structure on the basis of manual transmission
Self shifter under varying environment operating condition.
Clutch realizes automatic control by mechanical, electronics and the modes such as hydraulic.Automatic clutch have structure it is simple,
Production and use cost are cheap, easy to operate and maintain that the driving pleasure of manual gear vehicle, comfort be moderate, failure rate
The low, advantages such as maintenance is easy, automatic clutch vehicle compares manual gear vehicle oil consumption is low, application it is more and more extensive.
Automatic clutch applying working condition is more complicated, vehicle start, road conditions, vehicle condition, driver intention, operating habit etc. because
The execution that element all can influence the execution of automatic clutch control strategy and finally shift gears, so that the driving experience of vehicle is influenced,
Especially inevitably occurs the overload situations such as high revolving speed low-grade location, input torque excessively high (speed is low), pole in vehicle use
Easily clutch is caused to consume, the reliable overload protection strategy of science is very important.
Above content is only used to facilitate the understanding of the technical scheme, and is not represented and is recognized that above content is existing skill
Art.
Summary of the invention
The main purpose of the present invention is to provide the control methods and system of a kind of automatic clutch overload protection, it is intended to
Protection problem when clutch overloads fundamentally efficiently, reliably, is comprehensively solved, it is additional utmostly to reduce clutch
Consume.
To achieve the above object, the present invention provides a kind of control system of automatic clutch overload protection, the systems
It include: clutch electronic control unit, engine electronic control unit and torque monitoring module；
The torque monitoring module, for monitoring the torque value for driving gear to generate in vehicle traveling process；
The clutch electronic control unit, for receiving the torque value of the torque monitoring module real-time monitoring, root
Judge whether the driving gear overloads according to the torque value, holdback clutch operation is executed in overload, and in overload
It issues drop and turns round signal；
The engine electronic control unit, for detecting the clutch electronic control unit sending drop torsion signal
When, it controls the driving gear and carries out drop torsion.
Preferably, the system also includes CAN bus, the CAN bus respectively with
The engine electronic control unit and the connection of clutch electronic control unit；
The CAN bus receives the drop and turns round signal, and the engine electronic control unit detects institute
When stating on CAN bus in the presence of drop torsion signal, controls the driving gear and carry out drop torsion.
Preferably, the clutch electronic control unit is also used to carry out the torque value and predetermined torque threshold value
Compare, when the torque value is greater than the predetermined torque threshold value, is determined as the driving gear overload, executes and disengage clutch
Device operation, and issue drop and turn round signal.
Preferably, the engine electronic control unit is also used to receive the torsion of the torque monitoring module real-time monitoring
The torque value is compared by square numerical value with predetermined torque threshold value；
If the torque value is greater than the predetermined torque threshold value, the driving gear overload, the engine are determined
Electronic control unit control driving gear carries out drop torsion；
If the torque value is less than the predetermined torque threshold value, determine that the driving gear is not belonging to overload,
Then the control unit of engine waits user instruction to carry out next step operation.
Preferably, the engine electronic control unit, be also used to detect in the CAN bus whether
There are the drops to turn round signal；
If it exists, then the engine electronic control unit controls the driving gear and carries out drop torsion；
If it does not exist, then the engine electronic control unit obtains the torque value greater than the predetermined torque threshold value
Overload time, when the overload time is greater than preset time threshold, the engine electronic control unit controls the drive
Moving gear carries out drop torsion.
In addition, to achieve the above object, the present invention also proposes a kind of control system of above-mentioned automatic clutch overload protection
Automatic clutch overload protection control method, which comprises
After the torque monitoring module torque value that driving gear generates in monitoring vehicle traveling process, by the torsion
Square numerical value is sent to the clutch electronic control unit and the engine electronic control unit；
The clutch electronic control unit when receiving the torque value of the torque monitoring module real-time monitoring, according to
The torque value judges whether the driving gear overloads, and holdback clutch operation is executed in overload, and send out in overload
Drop turns round signal out；
The engine electronic control unit is when detecting that the clutch electronic control unit issues drop torsion signal, control
It makes the driving gear and carries out drop torsion.
Preferably, the system also includes CAN bus, the engine electronic control unit is being detected
When issuing drop torsion signal to the clutch electronic control unit, controls the driving gear and carries out the step of drop is turned round, comprising:
The CAN bus receives the drop and turns round signal, and the engine electronic control unit detects institute
It states on CAN bus there are when the drop torsion signal of clutch electronic control unit sending, controls the driving gear
Carry out drop torsion.
Preferably, the clutch electronic control unit is in the torque value for receiving the torque monitoring module real-time monitoring
When, judge whether the driving gear overloads according to the torque value, holdback clutch operation is executed in overload, and in mistake
The step of drop turns round signal is issued when load, comprising:
The torque value is compared, when the torsion by the clutch electronic control unit with predetermined torque threshold value
When square numerical value is greater than the predetermined torque threshold value, it is determined as the driving gear overload, executes holdback clutch operation, and issue
Drop turns round signal.
Preferably, the engine electronic control unit is detecting the clutch electronic control unit sending drop torsion letter
Number when, control the step of driving gear carries out before drop torsion, comprising:
The torque value for receiving the torque monitoring module real-time monitoring, by the torque value and predetermined torque threshold value into
Row compares；
If the torque value is greater than the predetermined torque threshold value, the driving gear overload, the engine are determined
Electronic control unit controls the driving gear and carries out drop torsion；
If the torque value is less than the predetermined torque threshold value, determine that the driving gear is not belonging to overload,
Then the control unit of engine waits user instruction to carry out next step operation.
Preferably, the engine electronic control unit is detecting the clutch electronic control unit sending drop torsion letter
Number when, control the step of driving gear carries out drop torsion, comprising:
The engine electronic control unit detects in the CAN bus and turns round letter with the presence or absence of the drop
Number；
If it exists, then the engine electronic control unit controls the driving gear and carries out drop torsion；
If it does not exist, then the engine electronic control unit obtains the torque value greater than the predetermined torque threshold value
Overload time, when the overload time is greater than preset time threshold, the engine electronic control unit controls the drive
Moving gear carries out drop torsion.
The invention discloses the control systems and method of a kind of automatic clutch overload protection, comprising: torque monitoring module
After the torque value that driving gear generates in monitoring vehicle traveling process, the torque value is sent to the clutch electricity
Sub-control unit and the engine electronic control unit；Clutch electronic control unit is receiving the torque monitoring module reality
When monitor torque value when, judge whether the driving gear overloads according to the torque value, overload when execute disengagement
Clutch operating, and issue drop in overload and turn round signal；Engine electronic control unit is detecting the clutch electronics control
When unit processed issues drop torsion signal, controls the driving gear and carry out drop torsion.The present invention passes through in power-driven mechanism and load
The inter-agency dedicated torque parameter sensor of setting realizes reliable data acquisition monitoring, avoids automatic clutch control unit sheet
Body problem leads to not complete overload protection, defeated from automatic clutch control unit itself, engine electronic control unit torque
It controls two roads out to realize overload protection, plays the role of double insurance, it is relatively reliable.
Detailed description of the invention
Fig. 1 is the control system of the automatic clutch overload protection for the hardware running environment that the embodiment of the present invention is related to
Structural schematic diagram；
Fig. 2 is the flow diagram of the control method first embodiment of automatic clutch overload protection of the present invention；
Fig. 3 is the flow diagram of the control method second embodiment of automatic clutch overload protection of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that described herein, specific examples are only used to explain the present invention, is not intended to limit the present invention.
Referring to Fig.1, Fig. 1 is the automatic clutch overload protection for the hardware running environment that the embodiment of the present invention is related to
Control system architecture schematic diagram.
As shown in Figure 1, the control system of the automatic clutch overload protection may include: CAN bus
1001, clutch electronic control unit 1002, engine electronic control unit 1003 and torque monitoring module 1004.
It will be understood by those skilled in the art that structure shown in Fig. 1 is not constituted to automatic clutch overload protection
Control system limits, and may include perhaps combining certain components or different component cloth than illustrating more or fewer components
It sets.
The embodiment of the invention provides a kind of control systems of automatic clutch overload protection, and referring to Fig.1, Fig. 1 is this hair
The structural block diagram of the control system of bright automatic clutch overload protection.
In the present embodiment, the control system of the automatic clutch overload protection, comprising: CAN bus
1001, clutch electronic control unit 1002, engine electronic control unit 1003, torque monitoring module 1004 and electronics are steady
Determine system control unit 1005.
Wherein, the CAN bus 1001 respectively with the engine electronic control unit 1002, described
Clutch electronic control unit 1003 and the electric stabilizing system control unit 1005 connection, the torque monitoring module 1004
It is connect respectively with the engine electronic control unit 1002 and the clutch electronic control unit 1003.
It should be understood that CAN bus (Controller Area Network, CAN), also known as " CAN is total
Line ", CAN are created in broadcast transmission mechanism (the broadcast communication based on information guiding transport protocol
Mechanism on).CAN defines the content of information, identifies son (message identifier, each message using message
Identifier is all unique in the entire network) priority picks of Lai Dingyi content and information, to carry out information
Transmitting.Not using the mode for assigning specific platform address (station address).In this way, CAN has the elasticity of height
Adjustment capability, can increase in existing network platform without with corrected on software and hardware with adjustment operation.CAN is set
Be counted as the microcontroller communication in automotive environment, vehicle-mounted each electronic control unit (Electronic Control Unit,
ECU information is exchanged between), forms electronic control network of automobile.Such as: engine management system, gearbox control, instrument dress
In standby and electronics trunk system, it is embedded in CAN control device.
It should be understood that electric stabilizing system control unit (Electronic Stability Program), also known as
" ESP ", is a kind of braking system that vehicle slip is prevented under the conditions of emergency running, and most important feature is exactly its active
Property, it can accomplish to prevent trouble before it happens.
It will be appreciated that torque monitoring module described in the present embodiment 1004 is for monitoring sliding tooth in vehicle traveling process
Take turns the torque value generated.Gear is the important component in mechanical structure, automobile since the advent of the world, in construction, gear
Just critical role is occupied.As the major components in vehicle structure, gear has shouldered the responsibility of gearing energy.Gear drives
Ejector half formula has one two kinds: first is that worm screw is driven with the combination of worm gear, second is that angular wheel combination transmission.The transmission of worm and wheel
It can get very big reduction ratio, this pattern is commonly used on truck.Number of threads has one, two, three or four
Root helix, transmission direction is from the axially driving rotation for becoming worm gear of worm screw.This kind of drive can convert transmission direction and
Biggish torque is transmitted, but reversible gearing very poor, modern age speed car just no longer uses.The transmission of angular wheel combination can both turn
Transmission direction is changed, and biggish reduction ratio can be obtained, common vehicle is all made of this pattern.For minibus and pickup truck
Hypoid gear, gear shaft line can be placed under driven gear axis, and the vehicle body and center of gravity of vehicle can reduce, and be applicable in
In the vehicle run at high speed.
Torque is a kind of special torque for making object rotate, and the torque of engine just refers to engine from crankshaft end
The torque of output.Inversely, the faster torque of revolving speed is smaller for it and engine speed under conditions of power is fixed, otherwise more
Greatly, it reflects the load capacity of automobile in a certain range.
It should be understood that in the present embodiment being pacified in power-driven mechanism and mechanism loading (such as driving wheel and follower)
Fill dedicated torque parameter sensor, the current torque value of real-time monitoring.
In the concrete realization, torque monitoring module 1004 monitors the torque that driving gear described in vehicle traveling process generates
Numerical value, and the torque value is fed back into clutch electronic control unit 1002 and engine electronic control unit 1003.
The clutch electronic control unit 1002, for receiving the torque of 1004 real-time monitoring of torque monitoring module
Numerical value judges whether the driving gear overloads according to the torque value, executes holdback clutch in overload and operates, and
Drop is issued when overload turns round signal；
It should be noted that the clutch electronic control unit 1002 further includes an execution automatic clutch electronics control
The execution terminal mechanism 10022 for the instruction that unit 10021 processed issues and a reception execute the automatic clutch of end command
Control system 10023, automatic clutch control system upon receipt of the instructions, execute holdback clutch operation.
In the concrete realization, clutch electronic control unit 1002 is also used to the torque value and predetermined torque threshold
Value is compared, and when the torque value is greater than the predetermined torque threshold value, is judged to driving overload, is executed holdback clutch
Operation, and issue drop and turn round signal.
The engine electronic control unit 1003, for detecting the clutch electronic control unit sending drop torsion
When signal, controls the driving gear and carry out drop torsion.
In the concrete realization, engine electronic control unit 1003 are receiving the torque monitoring module real-time monitoring
When torque value, the torque value is compared with predetermined torque threshold value；If the torque value is greater than the default torsion
Square threshold value, then determine the driving gear overload, and the engine electronic control unit controls the driving gear and carries out drop torsion；
If the torque value is less than the predetermined torque threshold value, determine that the driving gear is not belonging to overload, then the hair
Motivation control unit waits user instruction to carry out next step operation.
The engine electronic control unit 1003, being also used to detect whether there is in the CAN bus
The drop turns round signal.
In the concrete realization, whether engine electronic control unit 1003 detects in the CAN bus and deposits
Signal is turned round in the drop, and if it exists, then the engine electronic control unit controls the driving gear and carries out drop torsion；If not depositing
, then the engine electronic control unit obtains the overload time that the torque value is greater than the predetermined torque threshold value, when
When the overload time is greater than preset time threshold, the engine electronic control unit controls the driving gear and is dropped
It turns round.
After the present embodiment torque monitoring module torque value that driving gear generates in monitoring vehicle traveling process, by institute
It states torque value and is sent to the clutch electronic control unit and the engine electronic control unit；Clutch electronic control
Unit judges the sliding tooth according to the torque value when receiving the torque value of the torque monitoring module real-time monitoring
Whether wheel overloads, and holdback clutch operation is executed in overload, and issue drop in overload and turn round signal；Engine electronic control system list
Member controls the driving gear and carries out drop torsion when detecting that the clutch electronic control unit issues drop torsion signal.This hair
It is bright by the way that dedicated torque parameter sensor is arranged between power-driven mechanism and mechanism loading, realize reliable data acquisition prison
Control, avoids automatic clutch control unit problem itself from leading to not complete overload protection, from automatic clutch control unit sheet
Body, the output of engine electronic control unit torque control two roads to realize overload protection, play the role of double insurance, more may be used
It leans on.
Based on above-mentioned first embodiment, propose that the second of the control system of automatic clutch overload protection of the present invention is implemented
Example.
In the present embodiment, the engine electronic control unit 1003, for detecting the clutch electronics control
When unit 1002 processed issues drop torsion signal, controls the driving gear and carry out drop torsion；
Specifically, the engine electronic control unit 1003, is also used to receive the torque monitoring module 1004 in real time
The torque value is compared by the torque value of monitoring with predetermined torque threshold value.
In the concrete realization, engine electronic control unit 1003 is receiving 1004 real-time monitoring of torque monitoring module
Torque value when, by the torque value and the predetermined torque threshold value under preset different operating conditions, obtain comparing result.
It will be appreciated that operating condition refers to working condition of equipment under conditions of having direct relation with its movement.Hair
Operating status of the motivation when specific fuel consumption is minimum claims " efficient routine "；Operating status in load overrate claims
" overload operating condition ", the preset different operating conditions in the present embodiment refer to, the working condition in Automobile Transportation driving process.By automobile
Forms of motion mainly have: the driving cycles such as starting, acceleration, constant speed, deceleration, turning, climb and fall, parking.It is controlled by driver
Mode mainly has: it is shifted, slide (coasting in neutral, neutral gear slide, accelerated slip, parking are slided), braking (emergency braking,
Rate controlling braking, brake), throttle rate controlling, steering, the operating conditions such as reversing.Mainly have by load condition: unloaded, fully loaded (to be equal to volume
Determine load), the operating conditions such as overload (be more than rated load).
In the concrete realization, if the torque value is greater than the predetermined torque threshold value, determine the driving gear mistake
It carries, the engine electronic control unit controls the driving gear and carries out drop torsion.
Further, if the torque value is less than the predetermined torque threshold value, determine that the driving gear is not belonging to
Overload, then the control unit of engine 1003 waits user instruction to carry out next step operation.
In the specific implementation, the engine electronic control unit 1003, it is total to be also used to detect the controller local area network
Signal is turned round with the presence or absence of the drop in line.
In the concrete realization, if there are the drops to turn round signal in the CAN bus, then described to start
Electromechanical sub-control unit controls the driving gear and carries out drop torsion.
Further, if there is no drop torsion signal, the then engines in the CAN bus
Electronic control unit obtains the overload time that the torque value is greater than the predetermined torque threshold value, when the overload time is greater than
When preset time threshold, the engine electronic control unit controls the driving gear and carries out drop torsion.
The present embodiment engine electronic control unit receives the torque value of the torque monitoring module real-time monitoring, by institute
Torque value is stated to be compared with predetermined torque threshold value；If the torque value is greater than the predetermined torque threshold value, institute is determined
Driving gear overload is stated, the engine electronic control unit controls the driving gear and carries out drop torsion；If the torque value
Less than the predetermined torque threshold value, then determine that the driving gear is not belonging to overload, then described control unit of engine etc.
Next step operation is carried out to user instruction；Meanwhile engine electronic control unit, it detects in the CAN bus
Signal is turned round with the presence or absence of the drop；If it exists, then the engine electronic control unit controls the driving gear and carries out drop torsion；
If it does not exist, then when the engine electronic control unit obtains overload of the torque value greater than the predetermined torque threshold value
Between, when the overload time is greater than preset time threshold, the engine electronic control unit control the driving gear into
Row drop is turned round, and the present embodiment engine electronic control unit is by detecting in the CAN bus with the presence or absence of described
Drop turns round this route of signal and carries out drop torsion, plays the role of double insurance, relatively reliable.
Based on the control system of above-mentioned automatic clutch overload protection, the present invention also provides a kind of automatic clutch overloads to protect
The control method of shield.
With reference to Fig. 2, Fig. 2 is the process signal of the control method first embodiment of automatic clutch overload protection of the present invention
Figure.
In the present embodiment, the control method of the automatic clutch overload protection the following steps are included:
Step S10: after the torque monitoring module torque value that driving gear generates in monitoring vehicle traveling process,
The torque value is sent to the clutch electronic control unit and the engine electronic control unit；
It will be appreciated that torque monitoring module described in the present embodiment 1004 is for monitoring sliding tooth in vehicle traveling process
Take turns the torque value generated.Gear is the important component in mechanical structure, automobile since the advent of the world, in construction, gear
Just critical role is occupied.As the major components in vehicle structure, gear has shouldered the responsibility of gearing energy.Gear drives
Ejector half formula has one two kinds: first is that worm screw is driven with the combination of worm gear, second is that angular wheel combination transmission.The transmission of worm and wheel
It can get very big reduction ratio, this pattern is commonly used on truck.Number of threads has one, two, three or four
Root helix, transmission direction is from the axially driving rotation for becoming worm gear of worm screw.This kind of drive can convert transmission direction and
Biggish torque is transmitted, but reversible gearing very poor, modern age speed car just no longer uses.The transmission of angular wheel combination can both turn
Transmission direction is changed, and biggish reduction ratio can be obtained, common vehicle is all made of this pattern.For minibus and pickup truck
Hypoid gear, gear shaft line can be placed under driven gear axis, and the vehicle body and center of gravity of vehicle can reduce, and be applicable in
In the vehicle run at high speed.
Torque is a kind of special torque for making object rotate, and the torque of engine just refers to engine from crankshaft end
The torque of output.Inversely, the faster torque of revolving speed is smaller for it and engine speed under conditions of power is fixed, otherwise more
Greatly, it reflects the load capacity of automobile in a certain range.
It should be understood that in the present embodiment being pacified in power-driven mechanism and mechanism loading (such as driving wheel and follower)
Fill dedicated torque parameter sensor, the current torque value of real-time monitoring.
In the concrete realization, torque monitoring module 1004 monitors the torque that driving gear described in vehicle traveling process generates
Numerical value, and the torque value is fed back into clutch electronic control unit 1002 and engine electronic control unit 1003.
S20: the clutch electronic control unit when receiving the torque value of the torque monitoring module real-time monitoring,
Judge whether the driving gear overloads according to the torque value, holdback clutch operation is executed in overload, and overloading
When issue drop turn round signal；
It should be noted that the clutch electronic control unit 1002 further includes that an execution clutch electronic control is single
Member 1002 issue instructions executions terminal and one receive execution end command automatic clutch control system, automatically from
Clutch control system upon receipt of the instructions, executes holdback clutch operation.
In the concrete realization, clutch electronic control unit 1002 is also used to the torque value and predetermined torque threshold
Value is compared, and when the torque value is greater than the predetermined torque threshold value, is determined as the driving gear overload, is executed de-
Operation is declutched, and issues drop and turns round signal.
S30: the engine electronic control unit is detecting the clutch electronic control unit sending drop torsion signal
When, it controls the driving gear and carries out drop torsion.
In the concrete realization, whether engine electronic control unit 1003 detects in the CAN bus and deposits
Signal is turned round in the drop, and if it exists, then the engine electronic control unit controls the driving gear and carries out drop torsion；If not depositing
, then the engine electronic control unit obtains the overload time that the torque value is greater than the predetermined torque threshold value, when
When the overload time is greater than preset time threshold, the engine electronic control unit controls the driving gear and is dropped
It turns round.
It, will after the torque monitoring module of the present invention torque value that driving gear generates described in monitoring vehicle traveling process
The torque value is sent to the clutch electronic control unit and the engine electronic control unit；Clutch electronics control
Unit processed judges the driving according to the torque value when receiving the torque value of the torque monitoring module real-time monitoring
Whether gear overloads, and holdback clutch operation is executed in overload, and issue drop in overload and turn round signal；Engine electronic control system
Unit controls the driving gear and carries out drop torsion when detecting that the clutch electronic control unit issues drop torsion signal.This
Invention realizes reliable data acquisition prison by the way that dedicated torque parameter sensor is arranged between power-driven mechanism and mechanism loading
Control, avoids automatic clutch control unit problem itself from leading to not complete overload protection, from automatic clutch control unit sheet
Body, the output of engine electronic control unit torque control two roads to realize overload protection, play the role of double insurance, more may be used
It leans on.
With reference to Fig. 3, Fig. 3 is the process signal of the control method second embodiment of automatic clutch overload protection of the present invention
Figure.
Based on the control method first embodiment of above-mentioned automatic clutch overload protection, step S30 packet described in the present embodiment
It includes.
Step S301: receiving the torque value of the torque monitoring module real-time monitoring, by the torque value and presets
Torque threshold is compared；
In the concrete realization, engine electronic control unit is in the torque number for receiving the torque monitoring module real-time monitoring
When value, by the torque value and the predetermined torque threshold value under preset different operating conditions, comparing result is obtained.
It will be appreciated that operating condition refers to working condition of equipment under conditions of having direct relation with its movement.Hair
Operating status of the motivation when specific fuel consumption is minimum claims " efficient routine "；Operating status in load overrate claims
" overload operating condition ", the preset different operating conditions in the present embodiment refer to, the working condition in Automobile Transportation driving process.By automobile
Forms of motion mainly have: the driving cycles such as starting, acceleration, constant speed, deceleration, turning, climb and fall, parking.It is controlled by driver
Mode mainly has: it is shifted, slide (coasting in neutral, neutral gear slide, accelerated slip, parking are slided), braking (emergency braking,
Rate controlling braking, brake), throttle rate controlling, steering, the operating conditions such as reversing.Mainly have by load condition: unloaded, fully loaded (to be equal to volume
Determine load), the operating conditions such as overload (be more than rated load).
Step S302: if the torque value is greater than the predetermined torque threshold value, determine the driving gear overload, institute
It states the engine electronic control unit control driving gear and carries out drop torsion；
In the concrete realization, if the torque value is greater than the predetermined torque threshold value under preset current working, determine
The driving gear is in overload, at this point, the engine electronic control unit is by controlling the driving gear
System realizes that drop turns round operation.
Step S303: if the torque value is less than the predetermined torque threshold value, determine that the driving gear is not belonging to
Overload, then the control unit of engine waits user instruction to carry out next step operation；
In the concrete realization, if the torque value is greater than the predetermined torque threshold value under preset current working, determine
The driving gear is not at overload, then the control unit of engine waits the instruction of user, is carried out down according to instruction
Single stepping.
The present embodiment engine electronic control unit receives the torque value of the torque monitoring module real-time monitoring, by institute
Torque value is stated to be compared with predetermined torque threshold value；If the torque value is greater than the predetermined torque threshold value, institute is determined
Driving gear overload is stated, the engine electronic control unit controls the driving gear and carries out drop torsion；If the torque value
Less than the predetermined torque threshold value, then determine that the driving gear is not belonging to overload, then described control unit of engine etc.
Next step operation is carried out to user instruction；Meanwhile engine electronic control unit, it detects in the CAN bus
Signal is turned round with the presence or absence of the drop；If it exists, then the engine electronic control unit controls the driving gear and carries out drop torsion；
If it does not exist, then when the engine electronic control unit obtains overload of the torque value greater than the predetermined torque threshold value
Between, when the overload time is greater than preset time threshold, the engine electronic control unit control the driving gear into
Row drop is turned round, and the present embodiment engine electronic control unit is by detecting in the CAN bus with the presence or absence of described
Drop turns round this route of signal and carries out drop torsion, plays the role of double insurance, relatively reliable.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the system that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or system institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or system.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as read-only memory/random access memory, magnetic disk, CD), including some instructions are used so that a terminal device (can
To be mobile phone, computer, server, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of control system of automatic clutch overload protection, which is characterized in that the system comprises: clutch electronic control
Unit, engine electronic control unit and torque monitoring module；
The torque monitoring module, for monitoring the torque value for driving gear to generate in vehicle traveling process；
The clutch electronic control unit, for receiving the torque value of the torque monitoring module real-time monitoring, according to institute
It states torque value and judges whether the driving gear overloads, holdback clutch operation is executed in overload, and issue in overload
Drop turns round signal；
The engine electronic control unit, for when detecting that the clutch electronic control unit issues drop and turns round signal,
It controls the driving gear and carries out drop torsion.
2. the control system of automatic clutch overload protection as described in claim 1, which is characterized in that the system also includes
CAN bus, the CAN bus respectively with the engine electronic control unit and clutch
Electronic control unit connection；
The CAN bus receives the drop and turns round signal, and the engine electronic control unit detects the control
When there is drop torsion signal on device Area Network bus processed, controls the driving gear and carry out drop torsion.
3. the control system of automatic clutch overload protection as described in claim 1, which is characterized in that the clutch electronics
Control unit is also used to for the torque value being compared with predetermined torque threshold value, when the torque value is greater than described pre-
If when torque threshold, being determined as the driving gear overload, executing holdback clutch operation, and issue drop and turn round signal.
4. the control system of automatic clutch overload protection as described in claim 1, which is characterized in that the Motronic control maps
Control unit is also used to receive the torque value of the torque monitoring module real-time monitoring, by the torque value and default torsion
Square threshold value is compared；
If the torque value is greater than the predetermined torque threshold value, the driving gear overload, the Motronic control maps are determined
Control unit controls the driving gear and carries out drop torsion；
If the torque value is less than the predetermined torque threshold value, determine that the driving gear is not belonging to overload, then institute
Stating control unit of engine waits user instruction to carry out next step operation.
5. the control system of automatic clutch overload protection as claimed in claim 4, which is characterized in that the Motronic control maps
Control unit is also used to detect in the CAN bus and turns round signal with the presence or absence of the drop；
If it exists, then the engine electronic control unit controls the driving gear and carries out drop torsion；
If it does not exist, then the engine electronic control unit obtains the mistake that the torque value is greater than the predetermined torque threshold value
The time is carried, when the overload time is greater than preset time threshold, the engine electronic control unit controls the sliding tooth
Wheel carries out drop torsion.
6. a kind of automatic clutch of the control system based on automatic clutch overload protection described in any one of claim 1 to 5
The control method of device overload protection, which is characterized in that the described method includes:
After the torque monitoring module torque value that driving gear generates in monitoring vehicle traveling process, by the torque number
Value is sent to the clutch electronic control unit and the engine electronic control unit；
The clutch electronic control unit is when receiving the torque value of the torque monitoring module real-time monitoring, according to described
Torque value judges whether the driving gear overloads, and holdback clutch operation is executed in overload, and issue drop in overload
Turn round signal；
The engine electronic control unit controls institute when detecting that the clutch electronic control unit issues drop torsion signal
It states driving gear and carries out drop torsion.
7. the control method of automatic clutch overload protection as claimed in claim 6, which is characterized in that the system also includes
CAN bus, the engine electronic control unit are detecting the clutch electronic control unit sending drop
When turning round signal, controls the driving gear and carries out the step of drop is turned round, comprising:
The CAN bus receives the drop and turns round signal, and the engine electronic control unit detects the control
When turning round signal there are the drop that clutch electronic control unit issues on device Area Network bus processed, controls the driving gear and carry out
Drop is turned round.
8. the control method of automatic clutch overload protection as claimed in claim 6, which is characterized in that the clutch electronics
Control unit judges the drive according to the torque value when receiving the torque value of the torque monitoring module real-time monitoring
Whether moving gear overloads, and holdback clutch operation is executed in overload, and issue the step of drop turns round signal in overload, comprising:
The torque value is compared, when the torque number by the clutch electronic control unit with predetermined torque threshold value
When value is greater than the predetermined torque threshold value, it is determined as the driving gear overload, executes holdback clutch operation, and issue drop and turn round
Signal.
9. the control method of automatic clutch overload protection as claimed in claim 6, which is characterized in that the Motronic control maps
Control unit controls the driving gear and carries out drop torsion when detecting that the clutch electronic control unit issues drop torsion signal
Before the step of, comprising:
The torque value for receiving the torque monitoring module real-time monitoring, the torque value and predetermined torque threshold value are compared
Compared with；
If the torque value is greater than the predetermined torque threshold value, the driving gear overload, the Motronic control maps are determined
Control unit controls the driving gear and carries out drop torsion；
If the torque value is less than the predetermined torque threshold value, determine that the driving gear is not belonging to overload, then institute
Stating control unit of engine waits user instruction to carry out next step operation.
10. the control method of automatic clutch overload protection as claimed in claim 6, which is characterized in that described to start electromechanics
Sub-control unit controls the driving gear and is dropped when detecting that the clutch electronic control unit issues drop torsion signal
The step of torsion, comprising:
The engine electronic control unit detects in the CAN bus and turns round signal with the presence or absence of the drop；
If it exists, then the engine electronic control unit controls the driving gear and carries out drop torsion；
If it does not exist, then the engine electronic control unit obtains the mistake that the torque value is greater than the predetermined torque threshold value
The time is carried, when the overload time is greater than preset time threshold, the engine electronic control unit controls the sliding tooth
Wheel carries out drop torsion.
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| CN112124068A (en) * | 2020-09-08 | 2020-12-25 | 北汽福田汽车股份有限公司 | Transmission system, control method and vehicle |
| CN112324817A (en) * | 2020-11-02 | 2021-02-05 | 北京信息科技大学 | System and method for overload protection and piston stroke adaptive control of wet clutch |
| CN112983668A (en) * | 2021-02-26 | 2021-06-18 | 潍柴重机股份有限公司 | Heavy load monitoring method for marine engine |
| CN113586711A (en) * | 2021-07-30 | 2021-11-02 | 东风商用车有限公司 | AMT clutch slip protection method, device, equipment and storage medium |
| CN114526295A (en) * | 2022-02-25 | 2022-05-24 | 蜂巢传动科技河北有限公司 | Overload protection method and device for clutch, vehicle and storage medium |
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| CN114526295A (en) * | 2022-02-25 | 2022-05-24 | 蜂巢传动科技河北有限公司 | Overload protection method and device for clutch, vehicle and storage medium |
| CN114526295B (en) * | 2022-02-25 | 2023-10-10 | 蜂巢传动科技河北有限公司 | Overload protection method and device for clutch, vehicle and storage medium |
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|---|---|
| CN110173518B (en) | 2020-07-03 |
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