CN100572128C

CN100572128C - Hydraulic transmission energy accumulation vehicle

Info

Publication number: CN100572128C
Application number: CNB200710164594XA
Authority: CN
Inventors: 季志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-22
Filing date: 2007-12-22
Publication date: 2009-12-23
Anticipated expiration: 2027-12-22
Also published as: CN101195341A

Abstract

A kind of hydraulic transmission energy accumulation vehicle belongs to automobile technical field, and it comprises vehicle body, driving engine, automotive wheels, braking mechanism, circuit and control system, hydraulic efficiency pressure system, it is characterized in that hydraulic efficiency pressure system also comprises engine drive fluid oil supply loop, drive the oil supply source loop, drive the loop of travelling; Each automotive wheels on the vehicle body, every group of automotive wheels be promptly by two automotive wheels and driven vehicles wheel simultaneously together, and correspondence is equipped with travel HM Hydraulic Motor in the loop of the driving that drives it.The present invention one separates the driving engine of automobile and driving system fully, thereby can be transferred to the optimum value that an oil consumption is economized to engine speed, and the driving engine time of run is reduced, thereby reduces oil consumption; The 2nd, kinetic energy, the potential energy that can make car deceleration, slide, lose in the descent run process obtain reclaiming and store and feedback; The 3rd, get rid of the wheel mechanical differential, reduce car chassis.The 4th, can better realize infinite speed variation.

Description

Hydraulic transmission energy accumulation vehicle

Technical field

The invention belongs to automobile technical field, be specifically related to a kind of hydraulic transmission energy accumulation vehicle.

Background technology

The existing automobile that is used as power with gasoline, diesel oil promptly is commonly called as fuel-engined vehicle, is all passed through mechanical drive wheels such as gear, axle, such structure by driving engine, when automobile in the process of moving, during deceleration, must touch on the brake, at this moment the kinetic energy of automobile converts heat energy to by friction, is wasted; When automobile downhill travels, can not neutral slide, driving engine that must the use mode of operation pins down automobile driving speed, promptly must have an engine speed to mate the moving velocity of automobile, and at this moment the work oil consumption of driving engine is a kind of waste fully; In addition, the automobile downhill potential energy of being lost that travels can not be recovered utilization; Existing fuel-engined vehicle all must be provided with a cover wheel differential attachment, and the shell globulate of wheel differential attachment below car chassis protruded, so it is easy to run into the obstacle on the road surface, for this reason, in Automobile manufacturing, have to improve the height of car chassis; In addition, the mechanical drive infinite speed variation is relatively more difficult.

Summary of the invention

The objective of the invention is to provide a kind of hydraulic transmission energy accumulation vehicle, the one, the driving engine of automobile and driving system are separated fully, thereby can be transferred to an optimum value to the output effective power of each rotating speed of driving engine and oil consumption, and the driving engine time of run is reduced, thereby reduce oil consumption; The 2nd, can make car deceleration, slide kinetic energy, the potential energy lost in the driving process and obtain partly reclaiming storing, and can feed back as power; The 3rd, get rid of the wheel mechanical differential, reduce car chassis, or improve car chassis relatively; The 4th, can better realize infinite speed variation.

Above-mentioned goal of the invention is achieved through the following technical solutions, a kind of hydraulic transmission energy accumulation vehicle, it comprises vehicle body, driving engine, automotive wheels, braking mechanism, circuit and control system, hydraulic efficiency pressure system, its main points are that hydraulic efficiency pressure system also comprises engine drive fluid oil supply loop, drive the oil supply source loop, drive the loop of travelling; Each automotive wheels on the vehicle body, every group of automotive wheels be promptly by two automotive wheels and driven vehicles wheel simultaneously together, and correspondence is equipped with travel HM Hydraulic Motor in the loop of the driving that drives it.

Above-mentioned hydraulic transmission energy accumulation vehicle, one of its structure be engine drive fluid oil supply loop it comprise driving engine, engine throttle, driving engine tachogenerator, unidirectional volume adjustable hydraulic pump, check valve, electromagnetic valve, by pass valve, fuel tank; Unidirectional volume adjustable hydraulic pump, driving engine drive connection each other, and unidirectional volume adjustable hydraulic pump one port is connected with a check valve, and check valve is connected with electromagnetic valve one port; Unidirectional volume adjustable hydraulic pump another port is connected with a check valve, by pass valve, and check valve is connected with the electromagnetic valve another port; Electromagnetic valve also has an end to be connected with fuel tank; Electromagnetic valve also has a port and drives the oil supply source loop, drives the loop of travelling and be connected; By pass valve is connected with fuel tank.

Above-mentioned hydraulic transmission energy accumulation vehicle, one of its structure is to drive the oil supply source loop to comprise accumulation of energy cylinder, pressure sensor, by pass valve, fuel tank, electromagnetic valve in accumulation of energy cylinder, pressure sensor, by pass valve and the engine drive fluid oil supply loop, the electromagnetic valve that drives in the loop of travelling are connected, and the by pass valve other end is connected with fuel tank.

Above-mentioned hydraulic transmission energy accumulation vehicle, one of its structure be drive travel the loop it comprise HM Hydraulic Motor, hand valve, electromagnetic valve, check valve, Hydraulic Pump, unidirectional variable-dis-placement motor, by pass valve, acceleration pedal, decelerator pedal, fuel tank; Drive each automotive wheels on the vehicle body, each HM Hydraulic Motor of every group of automotive wheels is advanced with a Control of Automobile in the lump, stop, two ports of hand valve of car of falling back are connected, this hand valve another port is connected with check valve, a check valve and a Control of Automobile are quickened, slide, the electromagnetic valve that slows down is connected, electromagnetic valve two ports in addition is connected with fuel tank, electromagnetic valve also has another port and by pass valve, Hydraulic Pump one port is connected, by pass valve is connected with fuel tank, the Hydraulic Pump another port is connected with two check valve one ports, wherein a check valve another port is connected with hand valve one port, and another check valve another port is connected with fuel tank; Hydraulic Pump, unidirectional variable-dis-placement motor drive connection each other, unidirectional variable-dis-placement motor one port is connected with two check valves, one of them check valve another port is connected with fuel tank, the electromagnetic valve that quickens, slides, slows down with Control of Automobile in another check valve another port is connected, unidirectional variable-dis-placement motor another port is connected with check valve, the check valve another port is connected with the electromagnetic valve other end, electromagnetic valve also has a port to be connected with fuel tank, and accumulation of energy cylinder, pressure sensor, by pass valve during electromagnetic valve also has a port and drives the oil supply source loop are connected; Unidirectional variable-dis-placement motor also attaching has acceleration pedal, decelerator pedal.

Above-mentioned hydraulic transmission energy accumulation vehicle, one of its structure are that it also is provided with energy consumption recovery accumulation of energy backfeed loop; Energy consumption reclaim the accumulation of energy backfeed loop comprise electromagnetic valve, two-way quantitatively or variable-dis-placement motor, two-way quantitatively or volume adjustable hydraulic pump, accumulation of energy cylinder, pressure sensor, by pass valve, fuel tank; Four ports of electromagnetic valve, a port with two-way quantitatively or variable-dis-placement motor be connected, a port is connected with two-way quantitative or volume adjustable hydraulic pump, an end is connected with accumulation of energy cylinder, pressure sensor, by pass valve; One port is connected with the accumulation of energy cylinder, pressure sensor, the by pass valve that drive the oil supply source loop, and the electromagnetic valve that travels in the loop with driving is connected; Two-way quantitatively or variable-dis-placement motor drive each other with two-way quantitative or volume adjustable hydraulic pump and be connected; Two-way quantitatively or variable-dis-placement motor, two-way quantitatively or the another port of volume adjustable hydraulic pump be connected with fuel tank.

The present invention will have fuel-engined vehicle now by the structure of driving engine by mechanical drive wheels such as gear, axles, change over by driving engine pioneer hydrodynamic pressure drive system, again by the structure of hydraulic drive system drives automotive wheels, the driving engine of automobile and driving system are separated fully, thereby the output effective power and the oil consumption of each rotating speed of driving engine can be able to be transferred to an optimum value, and the driving engine time of run is reduced, thereby reduce oil consumption; In addition, said structure makes car deceleration, slides in the process, the partially recycled storage of particularly losing in the automobile downhill driving process of automobile kinetic energy, potential energy, and change into the hydraulic pressure energy of fluid power system; Get rid of the wheel mechanical differential, in Automobile manufacturing, can further reduce car chassis, or improved car chassis relatively; By means of the hand valve in the hydraulic circuit, Electronic Valve, two-way quantitatively or variable-dis-placement motor, two-way quantitatively or control element such as volume adjustable hydraulic pump and device can conveniently carry out infinite speed variation.Said structure of the present invention has also increased the hydraulic efficiency equipment of some certainly, and these equipment are meeting loss certain energy in operational process, but the energy consumption of its saving is far more than the energy of newly-increased hydraulic efficiency equipment loss.The corresponding meeting of hydraulic efficiency equipment that has increased some increases certain volume, but hydraulic efficiency equipment can disperse to install flexibly placement on automobile, so it can not increase the volume of automobile.

Description of drawings

Fig. 1: structural representation of the present invention

Fig. 2: hydraulic efficiency pressure system of the present invention increases the loop structure scheme drawing newly

Fig. 3: the solenoid valve conduction constitution diagram when engine drive fluid oil supply loop driving engine place starts

Fig. 4: engine drive fluid oil supply loop driving engine place work or the solenoid valve conduction constitution diagram when stopping

Fig. 5: drive hand valve, two solenoid valve conduction constitutions diagram when travelling automobile place, loop double ring ahead

Fig. 6: drive hand valve, two solenoid valve conduction constitutions diagram when travelling automobile place, loop slidable travel

Fig. 7: drive hand valve, two solenoid valve conduction constitutions diagram when travelling automobile place, loop Easy abeadl

Fig. 8: drive hand valve, two solenoid valve conduction constitutions diagram when travelling the parking of automobile place, loop

Fig. 9: solenoid valve conduction constitution diagram when energy consumption reclaims accumulation of energy backfeed loop place energy accumulating state

Figure 10: solenoid valve conduction constitution diagram when energy consumption reclaims accumulation of energy backfeed loop place energy back state

Among Fig. 1-10,1-vehicle body, 2-driving engine, 3,4,5, the 6-automotive wheels, 7-drives oil supply source loop, 8-engine drive fluid oil supply loop, 9-drives the loop of travelling, and the 10-energy consumption reclaims accumulation of energy backfeed loop, 11-driving engine tachogenerator, the 12-engine throttle, 13-by pass valve, 14,15,16, the 17-HM Hydraulic Motor, the unidirectional volume adjustable hydraulic pump of 18-, 19-check valve, 20-electromagnetic valve, adopt the two-position four-way reversing solenoid valve, 21-check valve, 22-by pass valve, the 23-fuel tank, 24-pressure sensor, 25-accumulation of energy cylinder, the 26-electromagnetic valve adopts solenoid directional control valve, the 27-electromagnetic valve, the 28-hand valve, 29-check valve, 30-Hydraulic Pump, the 31-check valve, 32-acceleration pedal, 33-decelerator pedal, the unidirectional variable-dis-placement motor of 34-, 35,36, the 37-check valve, the 38-by pass valve, the 39-check valve, the two-way fixed displacement motor of 40-, 41-bidirectional variable Hydraulic Pump, the 42-pressure sensor, 43-accumulation of energy cylinder, 44-by pass valve, the 45-electromagnetic valve, the 46-fuel tank

The specific embodiment

By Fig. 1-11 expression is one embodiment of the invention, it comprises vehicle body 1, driving engine 2,

automotive wheels

3,4,5,6, braking mechanism, circuit and control system, hydraulic efficiency pressure system, hydraulic efficiency pressure system also comprise driving engine fluid oil supply loop 8, drive oil supply source loop 7, the driving loop 9 of travelling, energy consumption reclaims accumulation of energy backfeed loop 10, and

automotive wheels

3,4,5,6 is corresponding respectively to be equipped with travel HM Hydraulic Motor 14,15,16,17 in the loop 10 of the driving that drives it;

Unidirectional volume adjustable hydraulic pump 18 is connected driving with driving engine 2 in the driving engine fluid oil supply loop 8; Driving engine tachogenerator 11 is housed, engine throttle 12 on the driving engine 2; Unidirectional volume adjustable hydraulic pump 18 1 ports are connected with a check valve 19, by pass valve 22, and check valve 19 is connected with two-position four-way reversing solenoid valve 20 1 ports, and by pass valve 22 communicates with fuel tank 23; Unidirectional volume adjustable hydraulic pump 18 another port are connected with check valve 21, and check valve 21 other ends are connected with two-position four-way reversing solenoid valve 20 1 ports; Two-position four-way reversing solenoid valve 20 also has an end to communicate with fuel tank 23; Two-position four-way reversing solenoid valve 20 also has a port and the pressure sensor 24, accumulation of energy cylinder 25, the by pass valve 13 that drive in the oil supply source loop 7 to join, with driving travel in the loop 9 with other electromagnetic valve simultaneously a port of Control of Automobile solenoid directional control valve 26 of quickening, sliding, slow down be connected, be connected with electromagnetic valve 45 1 ports of energy consumption recovery accumulation of energy backfeed loop 10;

The driving corresponding automotive wheels 3 that drives in the loop 9 of travelling, 4,5,6

hydraulic pressure horse

14,15,16,17, two end fluid pipelines also connect the back and advance with a Control of Automobile, stop, two ports of hand valve 28 of car of falling back are connected, hand valve 28 another port are connected with check valve 29, check valve 29 and other electromagnetic valve Control of Automobile simultaneously quicken, one port of the electromagnetic valve 27 that slows down is connected, electromagnetic valve 27 two ports in addition is connected with fuel tank 23, electromagnetic valve 27 also has a port and by pass valve 38, Hydraulic Pump 30 is connected, by pass valve 38 is connected with fuel tank 23, Hydraulic Pump 30 another port and check valve 31,39 1 ports are connected, check valve 31 another port are connected with hand valve 28 1 ports, and check valve 39 is connected with fuel tank 23; Hydraulic Pump 30 is connected driving each other with unidirectional variable-dis-placement motor 34, unidirectional variable-dis-placement motor 34 1 ports are connected with two

check valves

35,36, check valve 35 another port are connected with fuel tank 23, solenoid directional control valve 26 1 ports that quicken, slide, slow down with Control of Automobile in check valve 36 another port are connected, unidirectional variable-dis-placement motor 34 another port are connected with check valve 37, check valve 37 another port are connected with solenoid directional control valve 26 other ends, and solenoid directional control valve 26 also has a port to be connected with fuel tank 23;

The electromagnetic valve 45 that energy consumption reclaims accumulation of energy backfeed loop 10 also has three connectivity ports, one port is connected with two-way fixed displacement motor 40, one port is connected with two-way quantitative hydraulic pump 41, and a port is connected with pressure sensor 42, accumulation of energy cylinder 43, the by pass valve 44 of measuring energy consumption recovery accumulation of energy backfeed loop 10 oil pressure; Two-way fixed displacement motor 40, bidirectional variable Hydraulic Pump 41 another port are connected with fuel tank 23; By pass valve 44 is connected with high-pressure oil pump fuel tank 46; Two-way fixed displacement motor 40, bidirectional variable Hydraulic Pump 41 connect driving each other

The work operational process of the foregoing description is as follows:

Drive oil supply source loop 7:

Accumulation of energy cylinder 25 is to be used for storing the fluid with certain pressure, the fluctuation of buffering oil circuit pressure, for reclaiming accumulation of energy backfeed loop 10 driving fluid is provided in travel loop 9, energy consumption of driving, also reclaim accumulation of energy backfeed loop 10 energy consumptions and reclaim the fluid that feedback carries back storage is provided simultaneously for travel loop 9, energy consumption of driving; By pass valve 13 is that protection is no more than safe pressure for driving oil supply source loop 7 oil pressure, prevents that also energy consumption from reclaiming accumulation of energy backfeed loop 10 and working not normal; Sensor 24 is to be used for controlling driving engine fluid oil supply loop 8 and energy consumption to reclaim 10 work of accumulation of energy backfeed loop, and guaranteeing to drive oil supply source loop 7 has and a certain amount ofly have pressure oil liquid to make automobile normal running.Setting sensor 24 pressure P 1＜P2＜four pressure parameters of P3＜P4 at first, P7 is for driving the oil pressure value in oil supply source loop 7, the P1 pressure parameter is driving engine 2 ignition trigger pressure, the P2 pressure parameter is driving engine 2 out-of-work pressure, the P3 pressure parameter is for starting the pressure that energy consumption reclaims backfeed loop 10 energy back, and the P4 pressure parameter is for starting the pressure that energy consumption reclaims feedback 10 energy recoverys.Regulate by pass valve 13 operating pressures greater than P4 less than between the device security pressure.

Engine drive fluid oil supply loop 8:

When navigating mate enters vehicle drive chamber opening total power switch, the automobile power source energising, all equipment is in running order, sensor 24 work, (pressure is minimum or when equalling zero when sensor 24 records the oil pressure value during less than P1 that drives oil supply source loop 7, please electricity consumption start, start the engine 2 is waited for when certain hour makes the oil pressure that drives oil supply source loop 7 reach P1, start running automobile again), 20 energisings of two-position four-way reversing solenoid valve, at this moment, drive oil supply source loop 7 to unidirectional volume adjustable hydraulic pump 18 fuel feeding, its is rotated, and liquid oil circuit is: high-voltage oil liquid → two-position four-way reversing solenoid valve 20 → check valve 21 → unidirectional volume adjustable hydraulic pump 18 → become low pressure fluid → folk prescription valve 19 → two-position four-way reversing solenoid valve 20 → get back to fuel tank 23.The rotation of unidirectional volume adjustable hydraulic pump 18 drives driving engine 2 and rotates, and makes the running of driving engine 2 ignition triggers; When driving engine 2 runnings, when driving engine tachogenerator 11 records driving engine 2 a certain amount of rotating speed is arranged, send a signal and make 20 outages of two-position four-way reversing solenoid valve, because of there being retracting spring to make two-position four-way reversing solenoid valve 20 get back to normality in the electromagnetic valve, at this moment fluid circuit is changed, and the circuit of fluid is: fuel tank 23 low pressure fluid → two-position four-way reversing solenoid valve 20 → check valve 21 → unidirectional volume adjustable hydraulic pump 18 → high-voltage oil liquid → check valve 19 → two-position four-way reversing solenoid valve 20 → enter drives oil supply source loop 7

The travel work operational process in loop 9 of driving:

When hand valve 28 is pulled in the retaining that stops, when chaufeur step on the accelerator 32, decelerator pedal 33, solenoid directional control valve 26 work of can not switching on, but step on decelerator pedal 33 to time starting braking mechanism in limited time, automobile is braked accordingly.

Suppose existing hand valve 28 to be pulled in forward gear, during step on the accelerator 32, switch on, at this moment drive oil supply source 7 to unidirectional variable-dis-placement motor 34 fuel feeding again by solenoid directional control valve 26 for chaufeur.The fluid circuit is: drive oil supply source 7 high-voltage oil liquids → solenoid directional control valve 26 → unidirectional variable-dis-placement motor 34 → low pressure fluid → solenoid directional control valve 26 → fuel tank 23.At this moment unidirectional variable-dis-placement motor 34 rotations drive Hydraulic Pump 30 and rotate fuel feeding, and HM Hydraulic Motor 14,15,16,17 is rotated

automotive wheels

3,4,5,6, thereby automobile advances.The fluid circuit is: fuel tank 23 low pressure fluid → electromagnetic valves 27 → Hydraulic Pump 30 → check valve 31 → hand valve 28 → HM

Hydraulic Motor

3,4,5,6 → low pressure fluid → hand valve, 28 → check valve, 29 → electromagnetic valve, 27 → fuel tank 23.The neglecting the move distance that acceleration pedal 32 steps on greatly and decide of unidirectional variable-dis-placement motor 34 variable parameters (volumetric quantity), it is big more to step on the big more parameter of distance, the torsion of unidirectional variable-dis-placement motor 34 is big more, just the acceleration/accel of automobile is big more, this is the process of car acceleration, and at this moment automobile has certain speed to advance.When chaufeur acceleration pedal 32 is decontroled, at this moment solenoid directional control valve 26 can not be switched on, because solenoid directional control valve 26 has the retracting spring effect, solenoid directional control valve 26 is got back to normality, drives oil supply source loop 7 no longer to the driving loop 9 fuel feeding liquid that travel; Because of automobile speed of advance is arranged again, thereby HM Hydraulic Motor 14,15,16,17 is rotated, the fluid of HM

Hydraulic Motor

14,15,16,17 outputs drives Hydraulic Pump 30 and rotates, its fluid route: fluid → hand valve 28 → check valve 29 → electromagnetic valve 27 → fuel tank 23 → electromagnetic valve 27 → Hydraulic Pump 30 → check valve 31 → hand valve 28 → HM

Hydraulic Motor

14,15,16,17 of HM

Hydraulic Motor

14,15,16,17 outputs forms a loop.And Hydraulic Pump 30 drives unidirectional variable-dis-placement motor 34 rotations, at this moment unidirectional variable-dis-placement motor 34 parameters are minimum value, the fluid circuit: fuel tank 23 low pressure fluid → check valves 35 → unidirectional variable-dis-placement motor 34 → check valve 37 → solenoid directional control valve 26 → fuel tank 23, quite present automobile neutral slides.

When automobile driver is trampled decelerator pedal 33, at this moment solenoid directional control valve 26 and electromagnetic valve 27 are switched on simultaneously, at this moment automobile has certain moving velocity,

wheel

3,4,5,6 drives HM

Hydraulic Motor

14,15,16,17 rotations, its fluid circuit: high-voltage oil liquid → hand valve 28 → check valve 29 of HM

Hydraulic Motor

14,15,16,17 outputs → through electromagnetic valve 27 inside → and Hydraulic Pump 30 → low pressure fluid → check valve 31 → hand valve 28 → HM

Hydraulic Motor

14,15,16,17, form a closed-loop.Variable-dis-placement motor 34 fluid circuits are: fuel tank 23 low pressure fluid → electromagnetic valves 26 → check valve 37 → unidirectional variable-dis-placement motor 34 → high-voltage oil liquid → check valve 36 → electromagnetic valve 26 → driving oil supply source loop 7.From top work operational process as can be seen, when car deceleration moves, high-voltage oil liquid can be returned oil supply source 7, also reclaim with regard to energy consumption.Negative acceleration during deceleration how much be chaufeur push down on the pedal 33 move distances what and become, it is big more to step on the big more parameter of distance, the torsion of motor 34 is big more, also big more with regard to the automobile negative acceleration, in emergency circumstances do not stepping on flap 33 to die, in order to avoid the startup braking mechanism, as starting braking mechanism, just can not recuperated energy.The effect of electromagnetic valve 27 is automobiles when slowing down, and Hydraulic Pump 30 has presented the function of motor, and the fluid after therefore coming out from HM Hydraulic Motor 14,15,16,17 all is high-voltage oil liquid to the fluid that folk prescription valve 29 enters before the Hydraulic Pump 30.After electromagnetic valve 27 energisings itself and fuel tank are cut off, go into a leak free higher-pressure region.In the leak free higher-pressure region, also may heat up by fluid the high pressure that the fluid cubic expansion forms; Fluid overflows by by pass valve 38, the safety of protection oil circuit; Also might lower the temperature by fluid simultaneously, the fluid volumetric shrinkage forms vacuum, influences vehicle safety travel, replenishes fluid by folk prescription valve 39.

Because the effect of check valve 29,31, during the hand valve of automobile 28 place D Drives, automobile just can not fall back.Same reason, when hand valve 28 places of automobile fell back retaining, automobile can not advance; If when the hand valve 28 place park of automobile,

motor

14,15,16,17 oil circuits are shut, at this moment automobile can not advance yet and retreat, and plays the purpose of parking of automobile.The acceleration when falling back of same reason, automobile, is run slowly situation as previously mentioned at coaster, and only the position of hand valve is different.

Energy consumption reclaims the work operational process of accumulation of energy backfeed loop 10:

At first regulate the beneficial flowing pressure of by pass valve 44.The pressure of accumulation of energy cylinder 43 greater than the pressure of above-mentioned P4, can be arranged to superhigh pressure all the time, and its range of pressure is big more, also just can store more energy; Pressure sensor 42 is a pressure of measuring accumulation of energy cylinder 43, and the volumetric quantity parameter of the corresponding adjusting bidirectional variable of the pressure Hydraulic Pump 41 of the accumulation of energy cylinder 43 that records according to sensor 42, the pressure of accumulation of energy cylinder 43 is big more, the volumetric quantity parameter regulate should be more little, the pressure of the fluid that goes out from bidirectional variable Hydraulic Pump 41 force feeds could be stored into accumulation of energy cylinder 43 with high-voltage oil liquid greater than the pressure of accumulation of energy cylinder 43 like this.The P3 pressure parameter is for starting the pressure that energy consumption reclaims backfeed loop 10 energy back, and the P4 pressure parameter is for starting the pressure that energy consumption reclaims feedback 10 energy recoverys; Electromagnetic valve 45 energisings when driving the pressure P 7 〉=P4 in oil supply source loop 7, driving oil supply source loop 7 is communicated with energy consumption recovery accumulation of energy backfeed loop 10, the fluid that drives oil supply source loop 7 is through the two-way fixed displacement motor 40 of electromagnetic valve 45 inputs, two-way fixed displacement motor 40 is driven operation, two-way fixed displacement motor 40 drives the 41 operation work of bidirectional variable Hydraulic Pump again, fluid force feed in the fuel tank 46 is gone into accumulation of energy cylinder 43, reach the purpose of energy recovery accumulation of energy.Its fluid circuit: the fluid → electromagnetic valve 45 → double-action variable displacement motor 40 → low pressure fluid → fuel tank 23 that drives the pressure P 7 〉=P4 in oil supply source loop 7; Fluid → accumulation of energy the cylinder 43 of the fluid in the fuel tank 46 → bidirectional variable Hydraulic Pump 41 → have high pressure → surpass fluid → by pass valve 44 → fuel tank 46 of the beneficial flowing pressure of by pass valve 44.When the pressure P 7:P3≤P7 that drives oil supply source loop 7＜P4, energy consumption reclaims backfeed loop 10 beginning energy back, electromagnetic valve 45 is oppositely switched on, accumulation of energy cylinder 43 superhigh pressure fluid are conveyed into bidirectional variable Hydraulic Pump 41 and drive its work by electromagnetic valve 45, at this moment, bidirectional variable Hydraulic Pump 41 has played the function of HM Hydraulic Motor; Bidirectional variable Hydraulic Pump 41 drives two-way fixed displacement motor 40, and at this moment, two-way fixed displacement motor 40 has played the function of Hydraulic Pump, and fuel tank 23 low pressure fluid are boosted, and drives oil supply source loops 7 and the driving loop 9 of travelling through electromagnetic valve 45 inputs.Its fluid circuit: accumulation of energy cylinder 43 superhigh pressure fluid → electromagnetic valves 45 → bidirectional variable Hydraulic Pump 41 → fuel tank 46; Fuel tank 23 fluid → two-way fixed displacement motor 40 → electromagnetic valve 45 → driving oil supply source loop 7, drive the loop 9 of travelling.

Work operational process during automobile turning:

During automobile turning, because the centrifugal radius of the automotive wheels in the outside is greater than the centrifugal radius of the automotive wheels of inboard, so the centnifugal force that the centnifugal force that the automotive wheels in the outside is subjected to is subjected to greater than the automotive wheels of inboard; In addition, automobile turning, the center of gravity of automobile slopes inwardly, because the automotive wheels frictional resistance of above-mentioned two reason inboards is greater than the automotive wheels frictional resistance in the outside, and the oil liquid pressure of HM Hydraulic Motor 13,14,15,16 inputs of outside automotive wheels is identical in driving, because inboard automotive wheels frictional resistance is big, so actuating speed is slack-off, the automotive wheels frictional resistance in the outside is little, so actuating speed accelerates, thereby the automotive wheels speed of automobile inner side is slowed down, the automotive wheels speed in the outside is accelerated, outside automobile wheel speed is differential in promptly causing, and automobile is changed smoothly.

Show from description its structure of present embodiment, work operational process, the present invention can reach above-mentioned goal of the invention fully, promptly one is that the driving engine of automobile and driving system are separated fully, thereby can be transferred to an optimum value to the output effective power of each rotating speed of driving engine and oil consumption, and the driving engine time of run is reduced, thereby reduce oil consumption; The 2nd, can make car deceleration, slide in the driving process, particularly the automobile downhill driving process is that kinetic energy, the potential energy of middle forfeiture obtains partly reclaiming storing, and can feed back as power; The 3rd, get rid of the wheel mechanical differential, reduce car chassis, or improve car chassis relatively; The 4th, can better realize infinite speed variation.

Claims

1, a kind of hydraulic transmission energy accumulation vehicle, it comprises vehicle body, driving engine, automotive wheels, braking mechanism, circuit and control system, hydraulic efficiency pressure system is characterized in that hydraulic efficiency pressure system also comprises engine drive fluid oil supply loop, drives the oil supply source loop, drives the loop of travelling; Engine drive fluid oil supply loop comprises described driving engine, engine throttle, the driving engine tachogenerator, unidirectional volume adjustable hydraulic pump, first, second check valve, first electromagnetic valve, first by pass valve, fuel tank, unidirectional volume adjustable hydraulic pump, driving engine drives connection each other, unidirectional volume adjustable hydraulic pump one port is connected with first check valve, first check valve is connected with first electromagnetic valve, one port, the unidirectional volume adjustable hydraulic pump another port and second check valve, first by pass valve connects, this second check valve is connected with the first electromagnetic valve another port, first electromagnetic valve also has an end to be connected with fuel tank, first electromagnetic valve also has a port and drives the oil supply source loop, the driving loop of travelling is connected, and first by pass valve is connected with fuel tank; Drive the oil supply source loop and comprise accumulation of energy cylinder, pressure sensor, second by pass valve, described fuel tank, first electromagnetic valve in accumulation of energy cylinder, pressure sensor, second by pass valve and the engine drive fluid oil supply loop, the solenoid directional control valve that drives in the loop of travelling are connected, and the second by pass valve other end is connected with fuel tank; Each automotive wheels and every group of automotive wheels be promptly by two automotive wheels and driven vehicles wheel simultaneously together on the vehicle body, and all correspondence is equipped with travel HM Hydraulic Motor in the loop of the driving that drives it.

2, hydraulic transmission energy accumulation vehicle according to claim 1 is characterized in that driving the loop of travelling and comprises described HM Hydraulic Motor, hand valve, the 3rd electromagnetic valve, described solenoid directional control valve, the 3rd, the 4th, the 5th, the 6th, the 7th, the 8th check valve, Hydraulic Pump, unidirectional variable-dis-placement motor, the 3rd by pass valve, acceleration pedal, decelerator pedal, described fuel tank; Drive each automotive wheels on the vehicle body, the described HM Hydraulic Motor of each of every group of automotive wheels is advanced with a Control of Automobile in the lump, stop, two ports of described hand valve of car of falling back are connected, this hand valve another port is connected with the 3rd check valve, the 3rd check valve and a Control of Automobile are quickened, slide, described the 3rd electromagnetic valve that slows down is connected, the 3rd electromagnetic valve two ports in addition is connected with fuel tank, the 3rd electromagnetic valve also has another port and the 3rd by pass valve, Hydraulic Pump one port is connected, the 3rd by pass valve is connected with fuel tank, the Hydraulic Pump another port is respectively with the 4th, the 5th check valve one port is connected, wherein the 4th check valve another port is connected with hand valve one port, and the 5th check valve another port is connected with fuel tank; Hydraulic Pump, unidirectional variable-dis-placement motor drives connection each other, unidirectional variable-dis-placement motor one port is respectively with the 6th, the 7th check valve is connected, wherein the 6th check valve another port is connected with fuel tank, the 7th check valve another port and Control of Automobile are quickened, slide, the described solenoid directional control valve that slows down is connected, unidirectional variable-dis-placement motor another port is connected with the 8th check valve, the 8th check valve another port is connected with the solenoid directional control valve another port, solenoid directional control valve also has a port to be connected with fuel tank, and solenoid directional control valve also has a port and the accumulation of energy cylinder that drives in the oil supply source loop, pressure sensor, second by pass valve is connected; Unidirectional variable-dis-placement motor also attaching has described acceleration pedal, described decelerator pedal.

3, hydraulic transmission energy accumulation vehicle according to claim 2 is characterized in that it also is provided with energy consumption and reclaims the accumulation of energy backfeed loop; Energy consumption reclaim the accumulation of energy backfeed loop comprise the 4th electromagnetic valve, two-way quantitatively or variable-dis-placement motor, two-way quantitatively or volume adjustable hydraulic pump, described accumulation of energy cylinder, described pressure sensor, the 4th by pass valve, second fuel tank; The 4th electromagnetic valve comprises four ports, a port with two-way quantitatively or variable-dis-placement motor be connected, a port is connected with two-way quantitative or volume adjustable hydraulic pump, a port is connected with accumulation of energy cylinder, pressure sensor, the 4th by pass valve; One port is connected with solenoid directional control valve in driving the loop of travelling; Two-way quantitatively or variable-dis-placement motor drive each other with two-way quantitative or volume adjustable hydraulic pump and be connected; Two-way quantitatively or variable-dis-placement motor, two-way quantitatively or the another port of volume adjustable hydraulic pump be connected with second fuel tank.