CN108216191A - Working truck engine opens and closes control method, system and working truck - Google Patents
Working truck engine opens and closes control method, system and working truck Download PDFInfo
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- CN108216191A CN108216191A CN201711471464.0A CN201711471464A CN108216191A CN 108216191 A CN108216191 A CN 108216191A CN 201711471464 A CN201711471464 A CN 201711471464A CN 108216191 A CN108216191 A CN 108216191A
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- engine
- motor
- working truck
- bus
- drive system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/30—Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
Abstract
The present invention relates to a kind of working truck engines to open and close control method, system and working truck, wherein working truck engine open-shut control system includes engine (1), motor (2), assistant drive system and controller, when engine (1) is in first kind operating mode, controller control motor (2) is provided for engine (1) starts driving torque；When engine (1) is in the second class operating mode, controller control motor (2) and assistant drive system provide startup driving torque for engine jointly.The present invention provides driving torque for engine start simultaneously by motor and assistant drive system in the second class operating mode, can increase engine start driving torque, reduce time since engine start by setting motor and assistant drive system, realizes quick start；It avoids proposing requirements at the higher level to the output power of motor, the different demands of different operating modes can be met using different type of drive under different operating modes, reach preferably driving effect.
Description
Technical field
Control method is opened and closed the present invention relates to technical field of engineering machinery more particularly to a kind of working truck engine, is
System and working truck.
Background technology
In order to reduce the design weight of vehicle and cost, middle hoister in large tonnage by using single engine driving above and below
Turner is made.Since the maximum drive power got on or off the bus is inconsistent, get on or off the bus so the maximum drive power of engine needs to meet
Greatest requirements driving power, i.e. chassis maximum drive power.
Due to getting on or off the bus, power difference is larger, so when get on the bus driving operation, working condition of getting on the bus can only utilize
The driving power of fraction engine, fuel economy is poor, particularly in the standby operating conditions for accounting for the activity duration of getting on the bus nearly 30%
Under, powerful engine fuel consumption waste is huge.So under single-shot system standby operating conditions, how engine oil is reduced
Consume the hot spot that will be studied as industry technology personnel.
For fuel consumption under current engine standby operating conditions it is high the problem of, one of them effective solution is upper
During vehicle not operation (standby operating conditions), directly control engine misses, wait get on the bus start operation when, restarting engine provide work
Industry driving power.But the program presently, there are main problem be that time since engine start is longer (generally about 3s), frequently
Engine start, which is delayed, will influence the operating experience of user, which has become the important technical obstacle of program realization.
In order to reduce the startup time of engine, the usual way of this field is increase starting-motor of engine driving at present
Torque, but this can face problems with：
1st, it needs to select more powerful motor, but heavy-duty motor volume meeting bigger, it will change the arrangement of engine,
So conventional engine is not easy to realize the installation of heavy-duty motor, and it is very expensive to restructure cost；
2nd, alternative heavy-duty motor is less currently on the market, and available without ready-made scheme, there are larger
Technical risk；
3rd, powerful motor is selected, the technology path of entire engine will be changed, it will bring entire engine skill
Art variation of parameter will not coordinate change easily for engine producer.
It should be noted that the information for being disclosed in background of invention part is merely intended to increase the totality to the present invention
The understanding of background, and be not construed as recognizing or imply in any form the information form by those skilled in the art public affairs
The prior art known.
Invention content
The purpose of the present invention is to propose to a kind of working truck engines to open and close control method, system and working truck, to the greatest extent may be used
Energy ground reduces time since engine start, promotes the starting efficiency of engine.
To achieve the above object, the present invention provides a kind of working truck engines to open and close control method, including：
Detect the operating status of engine；
When engine is in first kind operating mode, the driving torque of engine start is made by motor offer；
When engine is in the second class operating mode, being provided jointly by motor and assistant drive system makes engine start
Driving torque.
Further, assistant drive system includes stand-by motor or hydraulic auxiliary driving system.
Further, working truck includes chassis and gets on the bus, and first kind operating mode includes chassis working condition, get on the bus operation head
Operating mode is again started up after secondary start operating performance and/or power-off of getting on the bus.
Further, the second class operating mode is no more than the first preset time including tail-off and assistant drive system has
The operating mode of driving force.
Further, this method further includes：
Working truck includes chassis and gets on the bus, and when stopping operation and got on the bus in standby mode on chassis, detects what is got on the bus
Stand-by time if stand-by time is more than the second preset time, closes engine.
Further, this method further includes：
After closing engine, continue the job state that detection is got on the bus, if when more than the first preset time, get on the bus and do not open yet
Beginning operation then disconnects vehicle power supply；
If when being less than the first preset time, get on the bus and start operation, then detect whether assistant drive system has driving
Ability if so, meeting the second class operating mode, while starts assistant drive system and motor, to provide the drive for making engine start
Dynamic torque.
To achieve the above object, the present invention also provides a kind of working truck engine open-shut control system, including starting
Mechanical, electrical machine, assistant drive system and controller, when engine is in first kind operating mode, controller control motor is engine
It provides and starts driving torque；When engine is in the second class operating mode, controller control motor and assistant drive system are jointly
Engine, which provides, starts driving torque.
Further, working truck includes chassis and gets on the bus, and first kind operating mode includes chassis working condition, get on the bus operation head
Operating mode is again started up after secondary start operating performance and/or power-off of getting on the bus.
Further, the second class operating mode is no more than the first preset time including tail-off and assistant drive system has
The operating mode of driving force.
Further, assistant drive system includes stand-by motor or hydraulic auxiliary driving system.
Further, hydraulic auxiliary driving system includes motor, accumulator, switching device and transmission device, accumulator
The hydraulic fluid port of oil outlet and motor connects, and switching device is used to control the break-make that oil circuit is connected between accumulator and motor, transmission dress
It puts and is connected between motor and engine, accumulator is used to provide hydraulic oil for motor and motor is made to export power, transmission device
For by the power transmission that motor exports to engine, startup driving torque to be provided for engine.
Further, transmission device includes gear set and the first transmission shaft, and the power output end of motor is passed by gear set
The first transmission shaft is handed to, the first transmission shaft is connect with engine driving.
Further, working truck drive system includes Main Hydraulic Pump of getting on the bus, and transmission device includes second driving shaft, motor
Power output end the input terminal of Main Hydraulic Pump of getting on the bus is connected to by second driving shaft.
Further, motor uses pump motor device as pump work and to pass through engine driving, pump motor device with
Fuel tank connects, to carry out repairing to accumulator.
Further, working truck drive system further includes oil feeding line, and oil feeding line is connected to oil supply source and accumulator
Between, to carry out repairing to accumulator.
Further, working truck drive system includes get on the bus Main Hydraulic Pump, one end of oil feeding line and the oil of accumulator
Mouth connection, the other end of oil feeding line are connected with the oil outlet for Main Hydraulic Pump of getting on the bus.
Further, working truck drive system includes get on the bus Main Hydraulic Pump, one end of oil feeding line and the oil of accumulator
Mouth connection, the other end of oil feeding line are connect with slippage pump, and slippage pump passes through engine driving.
Further, oil feeding line is equipped with switch valve and check valve.
Further, hydraulic auxiliary driving system further includes pressure sensor, and pressure sensor is used to detect accumulator
Outlet pressure, controller are connect with pressure sensor signal, and are controlled when the outlet pressure of accumulator is more than preset pressure value
Switching device is opened.
Further, hydraulic auxiliary driving system further includes first clutch, and first clutch is arranged on the power of motor
Between output terminal and transmission device.
Further, switching device includes reversal valve and inserted valve, the first actuator port of inserted valve and going out for accumulator
Hydraulic fluid port connects, and the second actuator port of inserted valve is connected with the hydraulic fluid port of motor, and the control port of inserted valve is connected with reversal valve, is changed
When being in connection position to valve, inserted valve is opened；When reversal valve is in disconnection position, inserted valve is closed.
Further, hydraulic auxiliary driving system further includes overflow valve, and overflow valve is connected to the oil outlet and oil of accumulator
Between case.
To achieve the above object, the present invention also provides a kind of working trucks, are opened including above-mentioned working truck engine
Close control system.
Based on above-mentioned technical proposal, the present invention is only logical in first kind operating mode by setting motor and assistant drive system
It crosses motor and provides driving torque for engine start；In the second class operating mode by motor and assistant drive system simultaneously to start
Machine, which starts, provides driving torque, for the simple scheme that driving torque is provided by motor, increases engine start drive
Dynamic torque can effectively reduce time since engine start, realize quick start.This method can be to avoid the output power to motor
It is proposed requirements at the higher level, it is not required that the structure of engine in itself is transformed, in addition, using different under different operating modes
Type of drive is also beneficial to realize the reasonable utilization to motor and assistant drive system, meets the different demands of different operating modes, reaches
To better driving effect.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and forms the part of the application, this hair
Bright illustrative embodiments and their description do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of working truck engine open-shut control system one embodiment of the present invention.
Fig. 2 is the schematic diagram of another embodiment of working truck engine open-shut control system of the present invention.
Fig. 3 is the schematic diagram of another embodiment of working truck engine open-shut control system of the present invention.
Fig. 4 is the schematic diagram of working truck engine open-shut control system further embodiment of the present invention.
In figure：
1st, engine；2nd, motor；3rd, second clutch；4th, it gets on the bus Main Hydraulic Pump；5th, first clutch；6th, pump motor fills
It puts；7th, overflow valve；8th, pressure sensor；9th, accumulator；10th, reversal valve；11st, inserted valve；12nd, main reversing valve；13rd, gear set；
14th, the first transmission shaft；15th, check valve；16th, switch valve；17th, slippage pump；18th, second driving shaft.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in embodiment is clearly and completely retouched
It states.Obviously, described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.Based on this hair
Bright embodiment, the every other implementation that those of ordinary skill in the art are obtained without making creative work
Example, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that term " " center ", " transverse direction ", " longitudinal direction ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right", " on ", " under ", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description rather than instruction or dark
Show that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The limitation of the scope of the present invention.
Refering to what is shown in Fig. 1, one in working truck engine provided by the present invention keying control method is schematically real
It applies in example, this method includes：
Detect the operating status of engine 1；
When engine 1 is in first kind operating mode, the driving torque for starting engine 1 is provided by motor 2；
When engine 1 is in the second class operating mode, being provided jointly by motor 2 and assistant drive system opens engine 1
Dynamic driving torque.
In above-mentioned illustrative examples, by setting motor 2 and assistant drive system, only pass through in first kind operating mode
Motor 2 provides driving torque for the startup of engine 1；In the second class operating mode by motor 2 and assistant drive system simultaneously to send out
Motivation 1, which starts, provides driving torque, for the simple scheme that driving torque is provided by motor, increases engine start
Driving torque can effectively reduce time since engine start, realize quick start.This method can be to avoid the output work to motor
Rate proposes requirements at the higher level, it is not required that the structure of engine in itself is transformed, in addition, using difference under different operating modes
Type of drive be also beneficial to realize reasonable utilization to motor and assistant drive system, meet the different demands of different operating modes,
Reach preferably driving effect.
Optionally, assistant drive system includes stand-by motor or hydraulic auxiliary driving system.Wherein, the output of stand-by motor
Power can be decided according to the actual requirements, and can play booster action to motor 2.Using the good of hydraulic auxiliary driving system
It is in hydraulic oil source of getting on the bus being utilized to be driven, not need to additionally increase power source, and hydraulic driving mode is reliable
Property is higher.
Optionally, working truck includes chassis and gets on the bus, and first kind operating mode includes chassis working condition, gets on the bus operation for the first time
Operating mode is again started up after start operating performance and/or power-off of getting on the bus.That is, during chassis is in working condition only with
Motor 2 provides driving torque for the startup of engine 1；It is also opened when getting on the bus first time initiating task only with motor 2 for engine 1
It is dynamic that driving torque is provided；And/or when being again started up after power-off of getting on the bus, also drive is provided for the startup of engine 1 only with motor 2
Dynamic torque.Under these operating modes, engine 1 is in chassis operation, starts for the first time or start for the first time after closing, and belongs to engine
1 normal startup, therefore drive and start only with motor 2, be conducive to protect engine 1.
Optionally, the second class operating mode is closed including engine 1 and is had no more than the first preset time and assistant drive system
The operating mode of driving force.Driving torque is provided for the startup of engine 1 jointly by motor 2 and assistant drive system under the operating mode,
It can effectively reduce and start the time, improve starting efficiency, meet quick startup demand.
Specifically, working truck engine of the present invention opens and closes control method embodiment and further includes：
Working truck includes chassis and gets on the bus, and when stopping operation and got on the bus in standby mode on chassis, detects what is got on the bus
Stand-by time if stand-by time is more than the second preset time, closes engine 1.
Further, after closing engine 1, continue the job state that detection is got on the bus, if when more than the first preset time,
It gets on the bus and does not start operation yet, then disconnect vehicle power supply；
If when being less than the first preset time, get on the bus and start operation, then detect whether assistant drive system has driving
Ability if so, meeting the second class operating mode, while starts assistant drive system and motor 2, makes what engine 1 started to provide
Driving torque.
By the setting, the fuel consumption of engine can be effectively controlled, saves the energy, while engine can also be improved
Starting efficiency promotes user's operation experience.
The present invention also proposes a kind of working truck engine open-shut control system, and working truck is sent out in above-mentioned each embodiment
Motivation opens and closes positive technique effect possessed by control method and is equally applicable to working truck engine open-shut control system, here
It repeats no more.
In an optional embodiment, working truck engine open-shut control system includes engine 1, motor 2, auxiliary
Drive system and controller, when engine 1 is in first kind operating mode, controller control motor 2 provides startup for engine 1 and drives
Dynamic torque；When engine 1 is in the second class operating mode, controller control motor 2 and assistant drive system carry jointly for engine 1
For starting driving torque.
Optionally, working truck includes chassis and gets on the bus, and first kind operating mode includes chassis working condition, gets on the bus operation for the first time
Operating mode is again started up after start operating performance and/or power-off of getting on the bus.
Optionally, the second class operating mode is closed including engine 1 and is had no more than the first preset time and assistant drive system
The operating mode of driving force.
Optionally, assistant drive system includes stand-by motor 2 or hydraulic auxiliary driving system.
Below with reference to Fig. 1~4, to hydraulic pressure auxiliary drive in working truck engine open-shut control system embodiment of the present invention
The control principle of system describes in detail.
As shown in Figure 1, hydraulic auxiliary driving system includes motor, accumulator 9, switching device and transmission device, accumulator 9
Oil outlet and motor hydraulic fluid port connect, switching device be used for control between accumulator 9 and motor connect oil circuit break-make, transmission
Device is connected between motor and engine 1, and accumulator 9 is driven for providing hydraulic oil for motor and motor being made to export power
Device hydraulic pressure provides startup driving torque by the power transmission that motor exports to engine 1, for engine 1.
In the embodiment shown in fig. 1, transmission device includes 13 and first transmission shaft 14 of gear set, and the power of motor is defeated
Outlet is transferred to the first transmission shaft 14 by gear set 13, and the first transmission shaft 14 is drivingly connected with engine 1.Wherein, gear set
13 can be transfer case or power takeoff.
In this embodiment, hydraulic auxiliary driving system directly with 1 power connector of engine.
Optionally, working truck engine open-shut control system further includes first clutch 5, and first clutch 5 is arranged on
Between the power output end and transmission device of motor.By setting first clutch 5, can disconnect at any time as needed motor and
Power between transmission device transmits.
Optionally, second clutch 3 is equipped between 1 and first transmission shaft 14 of engine, by setting second clutch 3,
The power that can selectively disconnect between 1 and first transmission shaft 14 of engine transmits.
In an embodiment as illustrated in figure 2, working truck drive system includes Main Hydraulic Pump 4 of getting on the bus, and transmission device includes
Second driving shaft 18, the power output end of motor are connected to the input terminal for Main Hydraulic Pump 4 of getting on the bus by second driving shaft 18.
In this embodiment, hydraulic auxiliary driving system is connected in series in the downstream for Main Hydraulic Pump 4 of getting on the bus, upper car owner's hydraulic pressure
Pump 4 is drivingly connected by the first transmission shaft 14 with engine 1.
Optionally, hydraulic auxiliary driving system further includes pressure sensor 8, and pressure sensor 8 is used to detect accumulator 9
Outlet pressure, controller are connect with 8 signal of pressure sensor, and are more than preset pressure value time control in the outlet pressure of accumulator 9
Switching device processed is opened.By setting pressure sensor 8, it can detect whether hydraulic auxiliary driving system has driving force.
Specifically, then illustrate hydraulic pressure auxiliary drive when pressure sensor 8 detects that the outlet pressure of accumulator 9 is more than preset pressure value
System has driving force, and then illustrates hydraulic auxiliary driving system when the outlet pressure of accumulator 9 is less than preset pressure value
Do not have driving force.
Optionally, switching device includes reversal valve 10 and inserted valve 11, the first actuator port and the accumulator 9 of inserted valve 11
Oil outlet connection, the second actuator port of inserted valve 11 connects with the hydraulic fluid port of motor, the control port and commutation of inserted valve 11
Valve 10 connects, and when reversal valve 10 is in connection position, inserted valve 11 is opened；When reversal valve 10 is in disconnection position, inserted valve 11 is closed.
Wherein, reversal valve 10 can be two position, three-way electromagnetic change valve, and pass through controller and controlled, to play on or off as needed
Inserted valve 11 is closed, when inserted valve 11 is opened, the connection oil circuit between accumulator 9 and motor is connected；When inserted valve 11 is closed, accumulation of energy
Connection oil circuit between device 9 and motor blocks.
Optionally, hydraulic auxiliary driving system further includes overflow valve 7, and overflow valve 7 is connected to the oil outlet and oil of accumulator 9
Between case.The overflow valve 7 can be used for releasing the high pressure oil in oil circuit.
In order to maintain the oil pressure of accumulator 9, ensure that accumulator 9 can work normally, in working truck engine of the present invention
In open-shut control system embodiment, the setting that fluid is supplemented for accumulator 9 is additionally provided.It is embodied as accumulator 9 and supplements fluid
There are many kinds of specific embodiments, is illustrated here with three kinds of embodiments.
In embodiment as depicted in figs. 1 and 2, motor uses pump motor device 6 to start as pump work and passing through
Machine 1 drives, and pump motor device 6 is connected with fuel tank, to carry out repairing to accumulator 9.Wherein, pump motor device 6 is that one kind both may be used
It, can also be as the device that motor uses to be used as hydraulic pump.By the setting, small number of element reality can be passed through
Now more functions.The fuel tank connected with pump motor device 6 can be connected with the oil feeding reservoirs for Main Hydraulic Pump 4 of getting on the bus, with realize from
The purpose of oil is taken in system of getting on the bus, reduces additional setting.
In the above-described embodiments, by using pump motor device 6, make it can be with while can realize motor function
It is used as hydraulic pump, the excess energy or chassis braking energy of engine can be recycled by transmission device is transmitted to pump motor
Engine excess energy or chassis braking energy under the action of torque is recycled, are stored in storage by device 6 in the form of hydraulic energy
In energy device 9, so as to fulfill the recycling of energy.The energy of storage quickly starts use for next engine or for getting on the bus
Main Hydraulic Pump 4 provides driving force to upper vehicle hydraulic system.
As another realization method for 9 repairing of accumulator, working truck drive system further includes oil feeding line, fuel feeding
Oil circuit connection is between oil supply source and accumulator 9, to carry out repairing to accumulator 9.
Specifically, in embodiment as shown in Figure 3, working truck drive system includes Main Hydraulic Pump 4 of getting on the bus, oil feeding line
One end connect with the hydraulic fluid port of accumulator 9, the other end of oil feeding line is connected with the oil outlet for Main Hydraulic Pump 4 of getting on the bus.
In the embodiment as shown in fig.4, working truck drive system includes getting on the bus Main Hydraulic Pump 4, and the one of oil feeding line
End is connect with the hydraulic fluid port of accumulator 9, and the other end of oil feeding line is connect with slippage pump 17, and slippage pump 17 is driven by engine 1.
Optionally, oil feeding line is equipped with switch valve 16 and check valve 15.The setting of switch valve 16 can have as needed
Oil feeding line is selectively made to connect or block.Switch valve 16 can be two-position two-way solenoid valve, and pass through controller and controlled.
Check valve 15 can prevent fluid from flowing backwards.
Based on above-mentioned working truck engine open-shut control system, the present invention also proposes a kind of working truck, the operation
Vehicle includes above-mentioned working truck engine open-shut control system.Working truck engine opens and closes control in above-mentioned each embodiment
Positive technique effect is equally applicable to working truck possessed by system processed, and which is not described herein again.
1~4 pair of working truck engine of the present invention opens and closes control method, system and working truck and implements below in conjunction with the accompanying drawings
The course of work of example illustrates：
In the embodiment shown in fig. 1, assistant drive system is hydraulic auxiliary driving system, and working truck engine opens
It closes control system and includes engine 1, engine 1 is internally provided with motor 2, and engine 1 passes through the first transmission shaft 14 and gear set 13
It is connect with pump motor device 6, first clutch 5 is equipped between pump motor device 6 and gear set 13, engine 1 and first is driven
Second clutch 3 is equipped between axis 14.The hydraulic fluid port of pump motor device 6 is connect with inserted valve 11, the control terminal connection of inserted valve 11
There is reversal valve 10, inserted valve 11 is connected with accumulator 9, and the hydraulic fluid port of accumulator 9 is also associated with pressure sensor 8 and overflow valve 7.The
One transmission shaft 14 is also connect with Main Hydraulic Pump 4 of getting on the bus, and Main Hydraulic Pump 4 of getting on the bus is connect with main reversing valve 12, and main reversing valve 12 is used for
Control action of getting on the bus.
In an embodiment as illustrated in figure 2, for compared to embodiment as shown in Figure 1, hydraulic auxiliary driving system leads to
The downstream that second driving shaft 18 is connected on Main Hydraulic Pump 4 of getting on the bus is crossed, gear set 13 is omitted.
In an embodiment as illustrated in figure 3, for compared to embodiment as shown in Figure 1, Main Hydraulic Pump 4 of getting on the bus is increased
Oil passage and accumulator 9 between oil feeding line, and oil feeding line be equipped with check valve 15 and switch valve 16.
In the embodiment as shown in fig.4, for compared to embodiment as shown in Figure 1, in gear set 13 and upper car owner
Slippage pump 17 is increased between hydraulic pump 4, the oil outlet of slippage pump 17 is connect with accumulator 9, and connection oil circuit is equipped with check valve
15 and switch valve 16.
Below by working truck for crane, to be described as follows to the control principle of engine start：
When engine 1 normally starts, startup driving torque is provided to engine 1 by the motor 2 of engine interior, realizes hair
The startup of motivation 1.Wherein, engine 1, which normally starts, refers to that engine in situ working condition, operation of getting on the bus start start for the first time
Operating mode is again started up after machine operating mode or crane power-off.
When operation of getting on the bus is standby, the stand-by time got on the bus is detected by the controller assembled on crane, if when standby
Between be more than second preset time (such as setting time t2) when, then controller will close engine, unnecessary so as to avoid
Treat engine oil consumption.
After the closing of engine 1, controller will the job state got on the bus of cycle detection, if get on the bus for a long time without
Work, and during more than first preset time (such as setting time t1), then disconnect the power supply of working truck vehicle, vehicle is made to break
Electricity.
If in the first preset time, engine 1, which detects to get on the bus, starts operation, then will start engine 1 and quickly open
Dynamic control program provides driving torque for the startup of engine 1 jointly by motor 2 and assistant drive system, realizes engine 1
Quick startup, meet get on the bus operation time and driving force requirement.
It needs to meet two premises when engine is controlled quickly to start：First, the operation and be standby operating conditions of getting on the bus；The
Two, pressure sensor 8 has enough pressure.It, can only be by starting if pressure sensor 8 does not detect enough pressure
1 inside of machine starts motor 2 and provides driving force, and controller will carry out fault alarm.
After engine fast starting sequence meets premise calls, controller will control reversal valve 10 to obtain electric, inserted valve 11
Perforation will be opened, the pressure oil stored in accumulator 9 can reach pump motor device 6, same time control by pipeline and inserted valve 11
Device processed can control pump motor device 6 to be in motor operating conditions, and pump motor device 6 will rotate under the action of 9 pressure oil of accumulator,
Export auxiliary driving force.Auxiliary driving force is arrived by first clutch 5, gear set 13, the first transmission shaft 14, second clutch 3
Up to engine 1, the offer of engine start torque is realized.The primary drive torque and motor 2 that hydraulic auxiliary driving system provides
Driving torque overcome the starting load of engine 1 together, realize the quick startup of engine 1.
After engine 1 starts, controller will send out instruction control reversal valve 10 and close, and 6 discharge capacity of pump motor device is in zero
Position state, engine 1 start to provide driving force for Main Hydraulic Pump 4 of getting on the bus, and by getting on the bus, Main Hydraulic Pump 4 turns the mechanical energy of engine
It turns to hydraulic energy and provides pressure oil to main system of getting on the bus.
In addition, after engine 1 starts, pressure sensor 8 will detect the pressure of accumulator 9, if storage pressure is low
In setting value p1, then controller will control pump motor device 6 to be in pump condition, and pump motor device 6 is in the dynamic of engine 1
It is rotated under power drive, by hydraulic oil storage in accumulator 9, when the pressure in accumulator 9 reaches setting value p2, then controller
It will stop the filling liquid of accumulator 9, the discharge capacity of pump motor device 6 will be in zero-bit state, and quickly start for next engine and carry out
Prepare.Certainly, it is not limited to for the mode of 9 repairing of accumulator using pump motor device 6, it can also be by setting oil feeding line
Mode carries out repairing, and I will not elaborate.
Pass through saying for multiple embodiments to working truck engine of the present invention keying control method, system and working truck
It is bright, it can be seen that working truck engine of the present invention opens and closes control method, system and working truck embodiment at least with following
One or more advantages：
1st, by setting motor and assistant drive system, the starting torque of engine can be increased in the second class operating mode,
So as to fulfill the quick startup of engine；
2nd, hydraulic auxiliary driving system includes pressure sensor, and the outlet pressure of accumulator can be detected, to protect
Card hydraulic auxiliary driving system works when with driving force；
3rd, hydraulic auxiliary driving system can carry out repairing to accumulator, in case next time, quick start used, therefore have
The characteristics of reuse, and the power of hydraulic auxiliary driving system can be taken from vehicle hydraulic system, not need to additionally increase
Add power source；
4th, assistant drive system can not only provide auxiliary driving force for engine, but also can realize the extra energy of engine
The recycling of amount or chassis braking energy, accumulation of energy is stored in by engine excess energy or chassis braking energy in the form of hydraulic energy
In device, so as to fulfill the recycling of energy.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
It can modify to the specific embodiment of the present invention or equivalent replacement is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical solution should all cover in the claimed technical solution range of the present invention.
Claims (23)
1. a kind of working truck engine opens and closes control method, which is characterized in that including：
Detect the operating status of engine (1)；
When the engine (1) is in first kind operating mode, the driving of the engine (1) startup is made by motor (2) offer
Torque；
When the engine (1) is in the second class operating mode, being provided jointly by the motor (2) and assistant drive system makes institute
State the driving torque of engine (1) startup.
2. working truck engine according to claim 1 opens and closes control method, which is characterized in that the auxiliary drive system
System includes stand-by motor or hydraulic auxiliary driving system.
3. working truck engine according to claim 1 opens and closes control method, which is characterized in that the working truck packet
Include and chassis and get on the bus, the first kind operating mode include the chassis working condition, it is described get on the bus operation for the first time start operating performance and/or
Operating mode is again started up after the power-off of getting on the bus.
4. working truck engine according to claim 1 opens and closes control method, which is characterized in that the second class operating mode
Has the operating mode of driving force no more than the first preset time and the assistant drive system including the engine (1) closing.
5. working truck engine according to claim 1 opens and closes control method, which is characterized in that further includes：
The working truck includes chassis and getting on the bus, and stops operation on the chassis and described when getting on the bus in standby mode, inspection
The stand-by time got on the bus described in survey if the stand-by time is more than the second preset time, closes the engine (1).
6. working truck engine according to claim 5 opens and closes control method, which is characterized in that further includes：
After closing the engine (1), continue the job state got on the bus described in detection, if when more than the first preset time, institute
It states to get on the bus and does not start operation yet, then disconnect vehicle power supply；
If when being less than the first preset time, described get on the bus starts operation, then detects whether the assistant drive system has
Driving force if so, meeting the second class operating mode, while starts the assistant drive system and the motor (2), to carry
For the driving torque for starting the engine (1).
7. a kind of working truck engine open-shut control system, which is characterized in that driven including engine (1), motor (2), auxiliary
Dynamic system and controller, when the engine (1) is in first kind operating mode, it is institute that the controller, which controls the motor (2),
It states engine (1) and provides and start driving torque；When the engine (1) is in the second class operating mode, the controller controls institute
It states motor (2) and the assistant drive system and is provided jointly for the engine (1) and start driving torque.
8. working truck engine open-shut control system according to claim 7, which is characterized in that the working truck packet
Include and chassis and get on the bus, the first kind operating mode include the chassis working condition, it is described get on the bus operation for the first time start operating performance and/or
Operating mode is again started up after the power-off of getting on the bus.
9. working truck engine open-shut control system according to claim 7, which is characterized in that the second class operating mode
Has the operating mode of driving force no more than the first preset time and the assistant drive system including the engine (1) closing.
10. working truck engine open-shut control system according to claim 7, which is characterized in that the auxiliary drive
System includes stand-by motor or hydraulic auxiliary driving system.
11. working truck engine open-shut control system according to claim 10, which is characterized in that the hydraulic pressure auxiliary
Drive system includes motor, accumulator (9), switching device and transmission device, oil outlet and the motor of the accumulator (9)
Hydraulic fluid port connection, the switching device is used to control between the accumulator (9) and the motor break-make of connection oil circuit, described
Transmission device is connected between the motor and engine (1), and the accumulator (9) for the motor for providing hydraulic oil simultaneously
Make motor output power, the transmission device be used for be to the engine (1) by the power transmission that the motor exports
The engine (1), which provides, starts driving torque.
12. working truck engine open-shut control system according to claim 11, which is characterized in that the transmission device
Including gear set (13) and the first transmission shaft (14), the power output end of the motor is transferred to institute by the gear set (13)
The first transmission shaft (14) is stated, first transmission shaft (14) is drivingly connected with the engine (1).
13. working truck engine open-shut control system according to claim 11, which is characterized in that the working truck
Drive system includes Main Hydraulic Pump (4) of getting on the bus, and the transmission device includes second driving shaft (18), the power output of the motor
End is connected to the input terminal of Main Hydraulic Pump (4) of getting on the bus by the second driving shaft (18).
14. working truck engine open-shut control system according to claim 11, which is characterized in that the motor uses
As pump work and to pass through the engine (1) driving, the pump motor device (6) connects pump motor device (6) with fuel tank,
To carry out repairing to the accumulator (9).
15. working truck engine open-shut control system according to claim 11, which is characterized in that the working truck
Drive system further includes oil feeding line, and the oil feeding line is connected between oil supply source and the accumulator (9), with to the storage
It can device (9) progress repairing.
16. working truck engine open-shut control system according to claim 15, which is characterized in that the working truck
Drive system includes Main Hydraulic Pump (4) of getting on the bus, and one end of the oil feeding line is connect with the hydraulic fluid port of the accumulator (9), described
The other end of oil feeding line is connected with the oil outlet of the Main Hydraulic Pump of getting on the bus (4).
17. working truck engine open-shut control system according to claim 15, which is characterized in that the working truck
Drive system includes Main Hydraulic Pump (4) of getting on the bus, and one end of the oil feeding line is connect with the hydraulic fluid port of the accumulator (9), described
The other end of oil feeding line is connect with slippage pump (17), and the slippage pump (17) is driven by the engine (1).
18. working truck engine open-shut control system according to claim 15, which is characterized in that the oil feeding line
It is equipped with switch valve (16) and check valve (15).
19. working truck engine open-shut control system according to claim 11, which is characterized in that the hydraulic pressure auxiliary
Drive system further includes pressure sensor (8), the pressure sensor (8) for detecting the outlet pressure of the accumulator (9),
The controller is connect with the pressure sensor (8) signal, and is more than preset pressure in the outlet pressure of the accumulator (9)
The switching device is controlled to open during value.
20. working truck engine open-shut control system according to claim 11, which is characterized in that the hydraulic pressure auxiliary
Drive system further includes first clutch (5), the first clutch (5) be arranged on the power output end of the motor with it is described
Between transmission device.
21. working truck engine open-shut control system according to claim 11, which is characterized in that the switching device
Including reversal valve (10) and inserted valve (11), the first actuator port of the inserted valve (11) is fuel-displaced with the accumulator (9)
Mouth connection, the second actuator port of the inserted valve (11) are connected with the hydraulic fluid port of the motor, the control of the inserted valve (11)
Hydraulic fluid port is connected with the reversal valve (10), and the reversal valve (10) in when connecting position, open by the inserted valve (11)；It is described to change
To valve (10) in disconnect position when, the inserted valve (11) is closed.
22. working truck engine open-shut control system according to claim 11, which is characterized in that the hydraulic pressure auxiliary
Drive system further includes overflow valve (7), and the overflow valve (7) is connected between the oil outlet and fuel tank of the accumulator (9).
23. a kind of working truck, which is characterized in that including such as claim 7~22 any one of them working truck engine
Open-shut control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711471464.0A CN108216191A (en) | 2017-12-29 | 2017-12-29 | Working truck engine opens and closes control method, system and working truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711471464.0A CN108216191A (en) | 2017-12-29 | 2017-12-29 | Working truck engine opens and closes control method, system and working truck |
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| CN108216191A true CN108216191A (en) | 2018-06-29 |
Family
ID=62646818
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711471464.0A Pending CN108216191A (en) | 2017-12-29 | 2017-12-29 | Working truck engine opens and closes control method, system and working truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111365509A (en) * | 2020-03-13 | 2020-07-03 | 浙江银轮机械股份有限公司 | Starting method and device of electronic valve system |
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Application publication date: 20180629 |