CN102092269B - Engine system and traffic tool comprising same - Google Patents

Engine system and traffic tool comprising same Download PDF

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Publication number
CN102092269B
CN102092269B CN201110003824.0A CN201110003824A CN102092269B CN 102092269 B CN102092269 B CN 102092269B CN 201110003824 A CN201110003824 A CN 201110003824A CN 102092269 B CN102092269 B CN 102092269B
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China
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hydraulic
engine
motor
energy
pump
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CN102092269A (en
Inventor
佟德辉
孙少军
谭旭光
刘林
潘凤文
张展腾
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Weichai Power Co Ltd
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Weichai Power Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/62Hybrid vehicles

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Abstract

The invention discloses an engine system and a traffic tool comprising the same. The engine system comprises an engine and an engine transmission mechanism and is characterized by further comprising a hydraulic power system. The hydraulic power system comprises a hydraulic oil storage tank, a hydraulic energy accumulator, a reverser, a hydraulic pump/motor, a clutch and a transmission mechanism.

Description

Engine system and the vehicle that comprise this engine system
Technical field
The present invention relates to engine art, more specifically, relate to a kind of engine system and the vehicle that comprise this engine system.
Background technology
Along with the vehicle (such as, vehicle, boats and ships etc.) expansion of energy-conserving and emission-cutting technology, produced the vehicle and the pressure accumulation of energy hybrid vehicles with " Start-Stop (start-shut down) " function.
But " Start-Stop " function is only applied to the monoenergetic driving source vehicle, for example diesel powered bus at present.Its energy-saving and emission-reduction realize by cancelling engine idle,, in the time of the of short duration parking of the vehicle, stop engine running that is, and in the time that the vehicle need to start, engine starting directly these vehicle of promotion travel.
The energy-saving and emission-reduction of combustion engine-pressure accumulation of energy hybrid vehicles be by reclaim brake energy and use it for the vehicle starting accelerator realize.
Summary of the invention
In view of above-mentioned prior art, visible, there are the vehicle of " Start-Stop " function in the time that starting is accelerated, driving engine still works in low speed high load, that is, and the region that engine performance is the poorest.And, due to frequent start-stop, the life-span of electric starter motor and storage battery and reliability fast-descending.And combustion engine-pressure accumulation of energy hybrid vehicles is in the time of of short duration parking, driving engine is still idle, and waste fuel also produces exhaust emission.
Given this, the vehicle that an object of embodiments of the present invention is to provide a kind of engine system and comprises this engine system, at least to address the above problem.
According to an aspect, embodiments of the present invention provide a kind of engine system, comprise: driving engine, engine drive mechanism with engine crankshaft coupling, this engine system also comprises: hydraulic power system, this hydraulic power system comprises: hydraulic oil storage tank, is configured for storage low-pressure hydraulic oil; Hydraulic accumulator, is configured for the pressure energy that stores high pressure liquid force feed and utilize hydraulic oil to produce; Commutator, is coupling between hydraulic oil storage tank and hydraulic accumulator and hydraulic pump/motor, for hydraulic pump/motor is worked by changing the oil circuit of connecting between hydraulic oil storage tank and hydraulic accumulator and hydraulic pump/motor according to the mode of pump or motor; Hydraulic pump/motor, with commutator coupling, if wherein worked according to the mode of pump, via commutator by hydraulic oil from hydraulic oil storage tank pump to hydraulic accumulator, thereby produce and store pressure energy at hydraulic accumulator; And if work according to the mode of motor, the hydraulic oil in hydraulic accumulator, via the commutator hydraulic pump/motor of flowing through under the effect of pressure energy, make hydraulic pump/motor produce kinetic energy, and hydraulic oil flows into hydraulic oil storage tank afterwards; Power-transfer clutch, is coupling between hydraulic pump/motor and transmission device, and this power-transfer clutch has make position or open position, for being switched on or switched off being connected of hydraulic pump/motor and transmission device; And transmission device, be coupling between power-transfer clutch and engine drive mechanism, be configured in the time that power-transfer clutch is in the close position, kinetic energy is transmitted between hydraulic pump/motor and engine drive mechanism.
According to the embodiment of the present invention, this engine system further comprises controller, itself and commutator and Clutch Coupling, be configured for based on vehicle state and control commutator to hydraulic pump/motor is worked according to pump or motor mode, and control clutch is so that its in the close position or open position.
According to the embodiment of the present invention, this controller is configured for: if vehicle state is that the vehicle are in braking state or normal motoring condition, control clutch closure, and control commutator to hydraulic pump/motor mode according to pump under the drive of the kinetic energy of engine drive mechanism transmission is worked, to produce and to store pressure energy in hydraulic accumulator.
According to the embodiment of the present invention, this controller is further coupled to hydraulic accumulator, and be configured for the pressure energy detecting in hydraulic accumulator and whether reached the pressure energy capacity limit of hydraulic accumulator, and if pressure energy does not wherein reach pressure energy capacity limit, control clutch closure, and control commutator to hydraulic pump/motor is worked according to the mode of pump, otherwise, control clutch disconnects, and controls the oil circuit between commutator disconnection hydraulic pump/motor and hydraulic oil storage tank and hydraulic accumulator.
According to the embodiment of the present invention, this controller can further be coupled to the hydraulic accumulator with by pass valve, and be configured for the pressure energy detecting in hydraulic accumulator and whether reached the pressure energy capacity limit of hydraulic accumulator, and if pressure energy has wherein reached pressure energy capacity limit, controlling water kick valve is opened, so that hydraulic oil flows out from it.
According to the embodiment of the present invention, work according to the mode of pump if this controller is further configured for hydraulic pump/motor, generate the signal of instruction hydraulic power system in stored energy state.
According to the embodiment of the present invention, this controller is configured for: if vehicle state is that the vehicle are in starting state or acceleration mode, control commutator to hydraulic pump/motor is worked according to the mode of motor, and control clutch closure, so that kinetic energy is passed to engine drive mechanism.
According to the embodiment of the present invention, this controller is further coupled to hydraulic accumulator, and be configured for to detect in hydraulic accumulator and whether have pressure energy or specify big or small pressure energy, and only there is therein pressure energy or specify in the situation of big or small pressure energy, control clutch closure, and control commutator to hydraulic pump/motor is worked according to the mode of motor, otherwise, control clutch disconnects, and controls the oil circuit between commutator disconnection hydraulic pump/motor and hydraulic oil storage tank and hydraulic accumulator.
According to the embodiment of the present invention, work according to the mode of motor if this controller is further configured for hydraulic pump/motor, generate the signal of instruction hydraulic power system in the state of releasing energy.
According to the embodiment of the present invention, this controller is further coupled to hydraulic accumulator and driving engine, and be configured for: if vehicle state is that the vehicle are in temporary transient dead ship condition, detect the pressure energy state of engine condition and hydraulic accumulator, to indicate engine stop work in the time that the pressure energy of hydraulic accumulator can restart driving engine.
According to the embodiment of the present invention, this engine system further comprises electric starting system, and this electric starting system comprises storage battery; This controller is further coupled to hydraulic accumulator and storage battery, and the energy state that is configured for pressure energy state based on hydraulic accumulator and storage battery determines it is to carry out start the engine by hydraulic power system or with electric starting system.
According to the embodiment of the present invention, this controller is further configured for: if vehicle state is that the vehicle are in temporary transient dead ship condition, detect the pressure energy state of engine condition, hydraulic accumulator and/or the energy state of storage battery, indicate engine stop work when at least one can restart driving engine in hydraulic accumulator and storage battery.
According to the embodiment of the present invention, this controller is further configured for according to actuation signal and indicates engine starting.
According to the embodiment of the present invention, this controller is further coupled to driving engine, and be configured for the excess pressure based on hydraulic accumulator respectively can and once spent energy of engine starting, and the dump energy of storage battery and engine starting once spent energy determine the residue number of starts of hydraulic power system and the residue number of starts of electric starting system, and generate the signal of the described number of times of instruction.
According to a further aspect in the invention, provide a kind of vehicle, it is characterized in that, comprised engine system and the bridge instrumentation dish of above-mentioned arbitrary embodiment; This bridge instrumentation dish and engine system coupling, be configured for from engine system and receive signal with display indicator, wherein designator is indicated respectively one or more in the residue number of starts of the hydraulic power system residue number of starts in the state of releasing energy, hydraulic power system and electric starting system in stored energy state, hydraulic power system.
According to the embodiment of the present invention, bridge instrumentation dish is touch-sensitive, user by click indicate hydraulic power system in stored energy state and hydraulic power system the designator in the state of releasing energy, check with current pressure size/current pressure in the hydraulic accumulator of numerical value or percentum form instruction and account for upper pressure limit ratio; Indicate the designator of the residue number of starts of hydraulic power system and the residue number of starts of electric starting system by click, be not 0 in the residue number of starts of hydraulic power system and the residue number of starts of electric starting system, can select to use hydraulic starting or electricity consumption is started by clicking corresponding designator; And wherein, bridge instrumentation dish further comprises the control that allows user by it, pressure energy capacity limit of hydraulic accumulator to be arranged.
The present invention is by being connected hydraulic power system via transmission device separately with engine crankshaft, and kinetic energy can be transmitted between hydraulic power system and driving engine, thereby make the driving engine being driven by hydraulic power can there is " Start-Stop " function, realized the advantage of further reduction of discharging.In addition, the vehicle according to the present invention can also have electric starting system on the basis of engine system with " Start-Stop " function, from but there is the hybrid vehicles of double startup system.
As is known to the person skilled in the art, the fuel economy of the single-power vehicle with " Start-Stop " function under the operating mode of city can improve 5%-15%, the actual energy-saving effect of pressure accumulation of energy hybrid vehicles under the operating mode of city is at 13%-27%, therefore, the vehicle according to the present invention are estimated energy-conservation 15%-42%.
Brief description of the drawings
Aspect overall, described embodiments of the present invention, with reference now to accompanying drawing, wherein accompanying drawing is not necessarily drawn in proportion, and wherein:
Fig. 1 shows according to the schematic configuration diagram of the engine system of embodiment of the present invention;
Fig. 2 shows according to the schematic block diagram of the vehicle of embodiment of the present invention.
Run through accompanying drawing, omitted and well known to a person skilled in the art parts, with the present invention that avoids confusion.
Detailed description of the invention
Below with reference to accompanying drawing, describe embodiments of the present invention in detail by way of example, to pass on general principle of the present invention.
First with reference to figure 1, wherein show according to the schematic configuration diagram of the engine system of embodiment of the present invention.
As shown in Figure 1, engine system 100 for example can comprise hydraulic power system 101, driving engine 105, engine crankshaft 106 and engine drive mechanism (for example, engine flywheel 107).
According to the embodiment of the present invention, hydraulic power system 101 for example can comprise: hydraulic oil storage tank 1011, is configured for storage low-pressure hydraulic oil; Hydraulic accumulator 1012, is configured for the pressure energy that stores high pressure liquid force feed and utilize high pressure liquid force feed to produce; Commutator 1013, be coupling between hydraulic oil storage tank 1011 and hydraulic accumulator 1012 and hydraulic pump/motor 1014, be configured for by changing between hydraulic oil storage tank 1011 and hydraulic accumulator 1012 and hydraulic pump/motor 1014 oil circuit of connection and control hydraulic pump/motor 1014 and work according to the mode of pump or motor; Hydraulic pump/motor 1014, be coupled with commutator 1013, be configured for: in the time working according to the mode of pump, absorb moment of torsion, via commutator 1013 by hydraulic oil from hydraulic oil storage tank 1011 pumps to hydraulic accumulator 1012, thereby produce therein and store pressure energy; In the time working according to the mode of motor, hydraulic oil in hydraulic accumulator 1012 under the effect of pressure energy via commutator 1013 hydraulic pump/motor 1014 of flowing through, make hydraulic pump/motor 1014 produce kinetic energy (, output torque), hydraulic oil flows into hydraulic oil storage tank 1011 afterwards; Power-transfer clutch 1015, is coupling between hydraulic pump/motor 1014 and transmission device 1016, and it has make position or open position, for being switched on or switched off being connected of hydraulic pump/motor 1014 and transmission device 1016; With transmission device 1016, (be for example coupling in power-transfer clutch 1015 and the engine drive mechanism that is coupled to engine crankshaft 106, engine flywheel 107) between, be configured in the time that power-transfer clutch 1015 is in the close position, kinetic energy is transmitted between hydraulic pump/motor 1014 and engine crankshaft 106.
Should be appreciated that engine flywheel 107 is only the example of engine drive mechanism, and any transmission device can be being respectively coupled with transmission device 1016 and the engine crankshaft 106 of hydraulic power system 100 can use, and not depart from the scope of the present invention.
Particularly, hydraulic accumulator 1012 can be for example such device, its whole inner space by separating mechanism (for example, can be formed by various materials) be divided into two chambers: one of them is gas chamber, and it is completely airtight, and be filled with gas (such as, air or nitrogen), another is hydraulic oil chamber, and it is connected with commutator 1013 (oil-feed oil circuit or fuel-displaced oil circuit) by oil circuit, for storage high pressure hydraulic oil.Certainly, it may occur to persons skilled in the art that, any device of pressure energy that can store high pressure liquid force feed and utilize high pressure liquid force feed to produce may be used to this purpose, and does not depart from the scope of the present invention.
Commutator 1013 can be for example three position four-way electromagnetic valve, two-position three way electrically-controlled valve etc. as known to those skilled, and these are only illustrated examples, and unrestricted.Those skilled in the art can understand, can connect unidirectional oil-feed oil circuit and unidirectional fuel-displaced oil circuit between hydraulic oil storage tank 1011 and hydraulic accumulator 1012 and hydraulic pump/motor 1014, and any commutator that disconnects these two oil circuits may be used to this purpose, and do not depart from the scope of the present invention.
Hydraulic pump/motor 1014 can be worked according to the mode of pump, also can work according to the mode of motor.In the time that hydraulic pump/motor 1014 is worked according to the mode of pump, it at external energy (for example, the kinetic energy that the electric energy that storage battery provides or engine crankshaft 106 transmit,, moment of torsion, etc.) drive under (, absorb moment of torsion), by hydraulic oil from hydraulic oil storage tank 1011 pumps to hydraulic oil energy storage 1012, and in the time working according to the mode of motor, its gear rotates under the effect of the hydraulic fluid pressure flowing out from hydraulic oil energy storage 1012, produces thus kinetic energy (, output torque).It will be appreciated by those skilled in the art that any hydraulic pump/motor 1014 that can realize above-mentioned functions can be used for the present invention, and do not depart from the scope of the present invention.
According to the embodiment of the present invention, engine system 100 may further include controller 102, itself and commutator 1013 and power-transfer clutch 1015 be coupled (for example, via signal wire (SW)), be configured for based on vehicle state (including but not limited to the braking state that below describes in detail or normal motoring condition, starting state or acceleration mode etc.) and control commutator 1013 to hydraulic pump/motor 1014 is worked according to pump or motor mode, and control clutch 1015 is so that its in the close position or open position.
hydraulic power system is in stored energy state
the vehicle are in braking state or normal motoring condition
In this case, controller 102 for example can be configured for control clutch 1015 closures, so that engine crankshaft 106 (is transmitted, via the coupling between engine flywheel 107 and transmission device 1016) kinetic energy (, moment of torsion) as the startup energy of hydraulic pump/motor 1014, and control commutator 1013 and connect the unidirectional oil-feed oil circuit between hydraulic oil storage tank 1011 and hydraulic accumulator 1012 and hydraulic pump/motor 1014, thereby hydraulic pump/motor 1014 is worked according to the mode of pump: absorb moment of torsion, the oil-feed oil circuit of connecting by commutator 1013 pumps into hydraulic oil the hydraulic oil chamber of hydraulic accumulator 1012 from hydraulic oil storage tank 1011, gas in its gas chamber is compressed, thereby generation pressure energy.Now, if next the vehicle state instruction vehicle do not need pressure energy to start or power-assisted, commutator 1013 can cut out the oil-feed oil circuit between hydraulic oil storage tank 1011 and hydraulic accumulator 1012 and hydraulic pump/motor 1014 and disconnect fuel-displaced oil circuit, hydraulic oil is sealed in the hydraulic oil chamber of hydraulic accumulator 1012, and pressure just can be stored in hydraulic accumulator 1012 thus.Certainly, if next the vehicle state instruction vehicle need pressure energy to start or power-assisted, commutator 1013 can be selected to connect the fuel-displaced oil circuit between hydraulic oil storage tank 1011 and hydraulic accumulator 1012 and hydraulic pump/motor 1014, thereby hydraulic pump/motor 1014 enters the state of releasing energy (describing in detail below).
According to an embodiment of the invention, controller 102 can further be coupled to hydraulic accumulator 1012 (for example, via signal wire (SW)), and (be for example configured for pressure energy capacity limit that whether pressure energy detecting in hydraulic accumulator 1012 reached hydraulic accumulator 1012, check whether the hydraulic oil in hydraulic accumulator 1012 has reached the settable volume of its hydraulic oil chamber), and only pressure energy does not therein reach in the situation of pressure energy capacity limit, control clutch 1015 is closed and control commutator 1013 to hydraulic pump/motor 1014 is worked according to the mode of pump, otherwise, control clutch 1015 disconnects, and control commutator 1013 and disconnect the oil circuit between hydraulic pump/motor 1014 and hydraulic oil storage tank 1011 and hydraulic accumulator 1012.
The another embodiment according to the present invention, controller 102 can further be coupled to the hydraulic accumulator 1012 with by pass valve (attached not shown), and (be for example configured for pressure energy capacity limit that whether pressure energy detecting in hydraulic accumulator 1012 reached hydraulic accumulator 1012, check whether the hydraulic oil in hydraulic accumulator 1012 has reached the settable volume of its hydraulic oil chamber), and if pressure energy has wherein reached pressure energy capacity limit, can control and can make the by pass valve that hydraulic oil flows out open.That is to say, in this case, still can control clutch 1015 closed and control commutator 1013 to hydraulic pump/motor 1014 is worked according to the mode of pump, but high pressure liquid force feed can flow out by by pass valve, and can not bring any risk to hydraulic accumulator 1012 because excessively flowing into hydraulic accumulator 1012.This, in the time that hydraulic power system 101 is braked by friction to substitute existing brake facing for brake operation, is for example very effective, and can bring the advantage that reduces brake facing wearing and tearing.
It will be appreciated by those skilled in the art that, above-mentioned pressure energy capacity limit can be hydraulic oil chamber volume itself restriction by hydraulic accumulator 1012, or can be also to set certain value by user for the security consideration of hydraulic accumulator 1012, it can set in advance, and also can dynamically change.
According to an embodiment of the invention, controller 102 can further be configured in the time that hydraulic pump/motor 1014 is worked according to the mode of pump, generates the signal of instruction hydraulic power system 101 in stored energy state.
Alternatively, this signal may further include the information that accounts for upper pressure limit ratio with current pressure size/current pressure in numerical value or percentum form instruction hydraulic accumulator 1012.
hydraulic power system is in the state of releasing energy
the vehicle are in starting state or acceleration mode
In this case, controller 102 can be configured for control commutator 1013 and connect the unidirectional fuel-displaced oil circuit between hydraulic oil storage tank 1011 and hydraulic accumulator 1012 and hydraulic pump/motor 1014, under the effect of the gaseous tension energy of hydraulic oil in the gas chamber of hydraulic accumulator 1012, leave hydraulic oil chamber, flow into hydraulic pump/motor 1014 by way of fuel-displaced oil circuit, promote the gear rotation in hydraulic pump/motor 1014, thereby make hydraulic pump/motor 1014 under the effect of hydraulic oil (as start energy) according to the mode work of motor with produce kinetic energy (, output torque), and control clutch 1015 closures for example, (to pass to engine crankshaft 106 by the kinetic energy of generation, via the coupling between engine flywheel 107 and transmission device 1016) using the startup as driving engine 105 or acceleration energy.
According to an embodiment of the invention, controller 102 can further be coupled to hydraulic accumulator 1012 (for example, via signal wire (SW)), and be configured for to detect in hydraulic accumulator 1012 and whether have pressure energy or specify big or small pressure energy, and only there is therein pressure energy or specify in the situation of big or small pressure energy, control clutch 1015 closures, and control commutator 1013 to hydraulic pump/motor 1014 is worked according to the mode of motor, otherwise, control clutch 1015 disconnects, and control commutator 1013 and disconnect the oil circuit between hydraulic pump/motor 1014 and hydraulic oil storage tank 1011 and hydraulic accumulator 1012.
The appointment that it will be understood by those skilled in the art that pressure energy size can be to set certain value by user for the security consideration of hydraulic accumulator 1012, and it can set in advance, and also can dynamically change.
According to an embodiment of the invention, controller 102 can further be configured in the time that hydraulic pump/motor 1014 is worked according to the mode of motor, generates the signal of instruction hydraulic power system 101 in the state of releasing energy.
Alternatively, this signal may further include the information that accounts for upper pressure limit ratio with current pressure size/current pressure in numerical value or percentum form instruction hydraulic accumulator 1012.
According to an embodiment of the invention, controller 102 can further be coupled to hydraulic accumulator 1012 and driving engine 105 (for example, via signal wire (SW)), and be configured for: if vehicle state is that the vehicle are in temporary transient dead ship condition, (for example detect engine condition, whether driving engine is in idling, whether the temperature of engine cooling water is too high (for example, exceed 93 DEG C) etc., these are only as example) and the pressure energy state of hydraulic accumulator, to indicate engine stop work in the time that the pressure energy of hydraulic accumulator can restart driving engine.
According to an embodiment of the invention, controller 102 is further configured for: indicate engine starting according to actuation signal, wherein actuation signal is such as from following operation: engage a gear, step on the accelerator or stubborn key etc.
According to an embodiment of the invention, engine system 100 for example may further include electric starting system 103, and this electric starting system 103 comprises storage battery 1031, electric starter motor 1032 and transmission gear 1033.
According to an embodiment of the invention, controller 102 is further coupled to storage battery 1031 (for example, via signal wire (SW)), and the energy state that is configured for pressure energy state based on hydraulic accumulator 1012 and storage battery 1031 determines it is to start (for example, respectively via the coupling between transmission device 1016 and engine flywheel 107, and coupling between transmission gear 1033 and engine crankshaft 106) driving engine 105 by hydraulic power system 101 or with electric starting system 103.
For example, can support engine starting and the energy state of storage battery 1031 when engine starting can not be supported at the pressure energy state of hydraulic accumulator 1012, select hydraulic power system 101 to carry out start the engine, otherwise, carry out start the engine with electric starting system 103.
And in the time that the pressure energy state of hydraulic accumulator 1012 and the energy state of storage battery 1031 can both be supported engine starting, preferentially select hydraulic power system 101 to carry out start the engine, certainly, it is also feasible carrying out start the engine with electric starting system 103.
According to an embodiment of the invention, controller 102 is further configured for: if vehicle state be the vehicle in temporary transient dead ship condition (for example, via speed of a motor vehicle sense mechanism, engine condition sense mechanism etc., these are well known to a person skilled in the art, repeat no more), (for example: whether driving engine is in idling mode detect the state of driving engine 105, whether the temperature of engine cooling water is too high (for example, exceed 93 DEG C) etc., these are only as example), the pressure energy state of hydraulic accumulator 1012 and/or the energy state of storage battery 1031, indicate driving engine 105 to quit work when only at least one can restart driving engine 105 in hydraulic accumulator 1012 and storage battery 1031.
According to an embodiment of the invention, controller 102 is further configured for: indicate engine starting according to actuation signal, wherein actuation signal is such as from following operation: engage a gear, step on the accelerator or stubborn key etc.
According to an embodiment of the invention, controller 102 is further coupled to driving engine 105 (for example, via signal wire (SW)), and be configured for respectively the excess pressure based on hydraulic accumulator 1012 can and driving engine 105 start once the needed energy (moment of torsion required according to start the engine, rotating speed and run up time calculate or measure according to engine rig test) and the dump energy of storage battery 1031 and driving engine 105 start once needed energy and determine the residue number of starts of hydraulic power system 101 and the residue number of starts of electric starting system 103, and the signal of the described number of times of generation instruction.
Next, Fig. 2 shows according to the schematic block diagram of the vehicle of embodiment of the present invention.
As shown in Figure 2, these vehicle 200 for example can comprise engine system 100 and bridge instrumentation dish 201 as shown in Figure 1.
This bridge instrumentation dish 201 and engine system 100 be coupled (for example, via signal wire (SW)), be configured for and receive signal from engine system 100 and represent with the 2011-2014 of display indicator, wherein designator 2011-2014 indicates respectively one or more in the residue number of starts of the hydraulic power system residue number of starts in the state of releasing energy, hydraulic power system and electric starting system in stored energy state, hydraulic power system.
It will be understood by those skilled in the art that designator 2011-2014 is only example, and be not used in restriction embodiments of the present invention; On bridge instrumentation dish 201, can for example distinguish these designators 2011-2014 by different figures, word or color etc., to provide better user to experience.
According to the embodiment of the present invention, for example, bridge instrumentation dish 201 can be touch-sensitive, thereby by further clicking designator 2011-2014, can further show details or provide further mutual.For example, user further clicks designator 2011 and designator 2012, can show with current pressure size/current pressure in numerical value or percentum form instruction hydraulic accumulator 1012 and account for upper pressure limit ratio; And click designator 2013 or 2014, can not be 0 in the residue number of starts of the residue number of starts of hydraulic power system and electric starting system, make user select to use hydraulic starting or to make electricity consumption start (this selection as command to controller 102) by clicking corresponding designator, make a choice for user to substitute by controller 102.
In addition, touch-sensitive bridge instrumentation dish 201 can also provide such as allow user by it, the pressure energy capacity limit to hydraulic accumulator arranges (wherein, the value arranging sends back controller, make for power-transfer clutch and commutator are controlled for controller) control, etc.
It should be noted that, the meaning of term " connection ", " coupling " or its any variant is direct between two or more elements or indirectly any connection or coupling, and can contain the situation that has one or more intermediary element between " connection " or " coupling " two elements together.Coupling between element or connection can be physics, logic or its combination.As used herein, by using one or more wires, cable and/or printed wire to connect, and by use electromagnetic energy (such as, there is the electromagnetic energy as the wavelength in frequency of radio non-limiting but not exhaustive examples region, in microwave region and light (visible and invisible the two) region), two elements can be considered as to " connection " or " coupling " together.
Benefit from the instruction presenting in aforementioned description and associated drawings, embodiment of the present invention those skilled in the art can expect other embodiments of the present invention and a lot of improvement.Therefore, should be appreciated that embodiments of the present invention are not limited to disclosed specific implementations, and amendment is intended to be included in the scope of claims with other embodiments.And, although above description and association service have been described illustrative embodiments in the context of some example combinations of element and/or function, but be to be understood that, do not departing under the prerequisite of claims scope, alternate embodiment can provide the various combination of element and/or function.With regard to this point, for example, can expect the element of explicit description above and/or the various combination of function, and be documented in some of claims.Although used particular term at this, only aspect universal description, use these terms, instead of for restriction.

Claims (14)

1. an engine system (100), comprising:
Driving engine (105),
With the engine drive mechanism (107) of engine crankshaft (106) coupling,
It is characterized in that, this engine system (100) also comprises:
Hydraulic power system (101), this hydraulic power system (101) comprising:
Hydraulic oil storage tank (1011), is configured for storage low-pressure hydraulic oil;
Hydraulic accumulator (1012), is configured for the pressure energy that stores high pressure liquid force feed and utilize hydraulic oil to produce;
Commutator (1013), be coupling between hydraulic oil storage tank (1011) and hydraulic accumulator (1012) and hydraulic pump/motor (1014), for hydraulic pump/motor (1014) is worked by changing the oil circuit of connecting between hydraulic oil storage tank (1011) and hydraulic accumulator (1012) and hydraulic pump/motor (1014) according to the mode of pump or motor;
Hydraulic pump/motor (1014), be coupled with commutator (1013), if wherein worked according to the mode of pump, via commutator (1013) by hydraulic oil from hydraulic oil storage tank (1011) pump to hydraulic accumulator (1012), thereby produce and store pressure energy at hydraulic accumulator (1012); And if worked according to the mode of motor, the hydraulic oil in hydraulic accumulator (1012) under the effect of pressure energy via commutator (1013) hydraulic pump/motor (1014) of flowing through, make hydraulic pump/motor (1014) produce kinetic energy, and hydraulic oil flow into hydraulic oil storage tank (1011) afterwards;
Power-transfer clutch (1015), be coupling between hydraulic pump/motor (1014) and transmission device (1016), this power-transfer clutch (1015) has make position or open position, for being switched on or switched off being connected of hydraulic pump/motor (1014) and transmission device (1016); With
Transmission device (1016), be coupling between power-transfer clutch (1015) and engine drive mechanism (107), be configured in the time that power-transfer clutch (1015) is in the close position, kinetic energy is transmitted between hydraulic pump/motor (1014) and engine drive mechanism (107)
Controller (102), itself and commutator (1013) and power-transfer clutch (1015) coupling, be configured for based on vehicle state and control commutator (1013) to hydraulic pump/motor (1014) is worked according to pump or motor mode, and control clutch (1015) is so that its in the close position or open position, this controller (102) is further coupled to hydraulic accumulator (1012) and driving engine (105), and be configured for: if vehicle state is that the vehicle are in temporary transient dead ship condition, detect the pressure energy state of engine condition and hydraulic accumulator, to indicate driving engine (105) to quit work in the time that the pressure energy of hydraulic accumulator (1012) can restart driving engine (105).
2. engine system as claimed in claim 1 (100), it is characterized in that, this controller (102) is configured for: if vehicle state is that the vehicle are in braking state or normal motoring condition, control clutch (1015) closure, and control commutator (1013) to hydraulic pump/motor (1014) is worked according to the mode of pump under the drive of the kinetic energy of engine drive mechanism (107) transmission, to produce and to store pressure energy in hydraulic accumulator (1012).
3. engine system as claimed in claim 2 (100), it is characterized in that, this controller (102) is further coupled to hydraulic accumulator (1012), and be configured for the pressure energy detecting in hydraulic accumulator (1012) and whether reached the pressure energy capacity limit of hydraulic accumulator (1012), and if pressure energy does not wherein reach pressure energy capacity limit, control clutch (1015) closure, and control commutator (1013) to hydraulic pump/motor (1014) is worked according to the mode of pump, otherwise, control clutch (1015) disconnects, and control commutator (1013) disconnect hydraulic pump/motor (1014) and hydraulic oil storage tank (1011) and hydraulic accumulator (1012) between oil circuit.
4. engine system as claimed in claim 2 (100), it is characterized in that, this controller (102) can further be coupled to the hydraulic accumulator (1012) with by pass valve, and be configured for the pressure energy detecting in hydraulic accumulator (1012) and whether reached the pressure energy capacity limit of hydraulic accumulator (1012), and if pressure energy has wherein reached pressure energy capacity limit, controlling water kick valve is opened, so that hydraulic oil flows out from it.
5. engine system as claimed in claim 2 (100), it is characterized in that, this controller (102), if being further configured for hydraulic pump/motor (1014) works according to the mode of pump, generates the signal of instruction hydraulic power system (101) in stored energy state.
6. engine system as claimed in claim 1 (100), it is characterized in that, this controller (102) is configured for: if vehicle state is that the vehicle are in starting state or acceleration mode, control commutator (1013) to hydraulic pump/motor (1014) is worked according to the mode of motor, and control clutch (1015) closure, kinetic energy is passed to engine drive mechanism (107).
7. engine system as claimed in claim 6 (100), it is characterized in that, this controller (102) is further coupled to hydraulic accumulator (1012), and be configured for to detect in hydraulic accumulator (1012) and whether have pressure energy or specify big or small pressure energy, and only there is therein pressure energy or specify in the situation of big or small pressure energy, control clutch (1015) closure, and control commutator (1013) to hydraulic pump/motor (1014) is worked according to the mode of motor, otherwise, control clutch (1015) disconnects, and control commutator (1013) disconnect hydraulic pump/motor (1014) and hydraulic oil storage tank (1011) and hydraulic accumulator (1012) between oil circuit.
8. engine system as claimed in claim 6 (100), it is characterized in that, this controller (102), if being further configured for hydraulic pump/motor (1014) works according to the mode of motor, generates the signal of instruction hydraulic power system (101) in the state of releasing energy.
9. engine system as claimed in claim 1 (100), is characterized in that, further comprises electric starting system (103), and this electric starting system (103) comprises storage battery (1031);
This controller (102) is further coupled to hydraulic accumulator (1012) and storage battery (1031), and the energy state that is configured for pressure energy state based on hydraulic accumulator (1012) and storage battery (1031) determines it is to use hydraulic power system (101) still to use electric starting system (103) to carry out start the engine (105).
10. engine system as claimed in claim 9 (100), it is characterized in that, this controller (102) is further configured for: if vehicle state is that the vehicle are in temporary transient dead ship condition, detect the pressure energy state of engine condition, hydraulic accumulator (1012) and/or the energy state of storage battery (1031), indicate driving engine (105) to quit work when at least one can restart driving engine (105) in hydraulic accumulator (1012) and storage battery (1031).
11. as the engine system of claim 10 (100), it is characterized in that, this controller (102) is further configured for according to actuation signal indicates driving engine (105) to start.
12. engine systems as claimed in claim 9 (100), it is characterized in that, this controller (102) is further coupled to driving engine (105), and be configured for the excess pressure based on hydraulic accumulator (1012) respectively can and once spent energy of driving engine (105) startup, and the dump energy of storage battery (1031) and driving engine (105) start once spent energy and determine the residue number of starts of hydraulic power system (101) and the residue number of starts of electric starting system (103), and the signal of the described number of times of generation instruction.
13. 1 kinds of vehicle (200), is characterized in that, comprise as engine system arbitrary in claim 1-12 (100) and bridge instrumentation dish (201);
This bridge instrumentation dish (201) and engine system (100) coupling, be configured for from engine system (100) and receive signal with display indicator (2011-2014), wherein designator (2011-2014) is indicated respectively one or more in the residue number of starts of hydraulic power system (101) the residue number of starts in the state of releasing energy, hydraulic power system (101) and electric starting system (103) in stored energy state, hydraulic power system (101).
14. as the vehicle of claim 13 (200), wherein bridge instrumentation dish (201) is touch-sensitive, user by click indicate hydraulic power system in stored energy state (2011) and hydraulic power system the designator in the state of releasing energy (2012), check with current pressure size/current pressure in the hydraulic accumulator of numerical value or percentum form instruction and account for upper pressure limit ratio;
Indicate the designator of the residue number of starts (2013) of hydraulic power system and the residue number of starts (2014) of electric starting system by click, in the residue number of starts of hydraulic power system and the residue number of starts (2013 of electric starting system, 2014) be not in 0 situation, can select to use hydraulic starting or electricity consumption is started by clicking corresponding designator; And
Wherein, bridge instrumentation dish (201) further comprises the control that allows user by it, pressure energy capacity limit of hydraulic accumulator (1012) to be arranged.
CN201110003824.0A 2011-01-04 2011-01-04 Engine system and traffic tool comprising same Active CN102092269B (en)

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