WO2014051480A1 - Device for vehicle energy storage/release when braking/actuating and method thereof - Google Patents

Device for vehicle energy storage/release when braking/actuating and method thereof Download PDF

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Publication number
WO2014051480A1
WO2014051480A1 PCT/SE2013/000100 SE2013000100W WO2014051480A1 WO 2014051480 A1 WO2014051480 A1 WO 2014051480A1 SE 2013000100 W SE2013000100 W SE 2013000100W WO 2014051480 A1 WO2014051480 A1 WO 2014051480A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
energy
cylinder
double
spring
Prior art date
Application number
PCT/SE2013/000100
Other languages
French (fr)
Inventor
Lifeng Wang
Original Assignee
Lifeng Wang
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Filing date
Publication date
Application filed by Lifeng Wang filed Critical Lifeng Wang
Publication of WO2014051480A1 publication Critical patent/WO2014051480A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
    • B60K6/10—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable mechanical accumulator, e.g. flywheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/10—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels by utilising wheel movement for accumulating energy, e.g. driving air compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G1/00—Spring motors
    • F03G1/02—Spring motors characterised by shape or material of spring, e.g. helical, spiral, coil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/16—Mechanic energy storages
    • B60Y2400/164—Springs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Definitions

  • the invetion relates to the techinical field of vehicle energy saving, in particular to a device that stores energy when braking a vehicle and releases said energy to actuate the vehicle referred to a device for vehicle energy storage/release when braking/actuating (Abbreviation: device for VES RWB/A) and method thereof.
  • Computers are the core of the central control unit in the electrical system, and the technology of "Controller Area Network-BUS" which was used at first in the aircraft takes part in the data transmission of sensors arranged throughout the automobile body, easily achiving the accurate control of driving and security functions.
  • the automobile industry has been increasingly facing serious problems with the energy saving and emission reducing.
  • the vehicle brakes and decelerates through the traditional technologies such as, brake drum or brake disc, exciting heat through friction
  • a part of the kinetic energy dissipates as heat energy. How to use this part of the kinetic energy, as well as searching new energy and clean energy for automobile power has become hot topics.
  • the power composite device combines the automobile engine with another new power (that is the combination of an automobile engine with a motor or a generator/motor for the hybrid electric vehicle), so that the vehicle can be co-driven by both of the automobile engine and another new power or can be solely driven by either of them.
  • the hybrid electric vehicle has achieved an improvement for energy saving and emission reduction, but still got a plurality of problems as follows: (1) its power system needs a generator, an accumulator jar, and a motor or a generator/motor besides the automobile engine, which occupy a larger space and weight of the vehicle; (2) the electrical energy of the accumulator jar comes from an external and/or an vehicle-mounted energy resource, which still consume the energy and fuel in a certain degree; (3) the efficiency of recycling and using the kinetic energy which is lost by braking and decelerating the vehicle is limited, because (a) if a electricity generator and another electric motor are respectively used in the hybrid electric vehicle, namely the electrical energy that is generated via the rotation of the vehicle wheels (cutting the magnetic-curves) when braking and decelerating the vehicle is collected by a specific vehicle-mounted electricity generator and stored in an accumulator jar, and then the electrical energy obtained from the accumulator jar when starting and accelerating the vehicle is used by another specific vehicle-mounted electric motor to drive the vehicle wheels, the number
  • the technical problems to be solved by the invention is to provide a device for vehicle energy storage/release when braking/actuating with simple structure and a method for the same, wherein, when the vehicle needs to brake or decelerate, the said device can be used to brake or decelerate the vehicle meanwhile the lost kinetic energy of the vehicle can be stored in the device; and when the vehicle needs to start or accelerate, the device can release the stored energy to drive the vehicle starting or accelerating, in order to achieve energy saving and emission reducing.
  • a device that stores energy when braking a vehicle and releases said energy to actuate the vehicle referred to a device for vehicle energy storage/release when braking/actuating (Abbreviation: device for VES/RWB/A), comprising: a spring cylinder , comprising a cylinder wall forming the cylinder chamber, a piston slidably fitted with an inner wall of the cylinder, and a spiral spring arranged between the piston and the ends of the cylinder; the direction of the elastic force from the spiral spring is parallel to the sliding direction of the piston; a gaseous medium filled in the cylinder chamber; a translational motion portion , comprising a double-sided teeth column, one end of which is connected with the piston, provided with spline grooves at both opposing sides of the double-sided teeth column, and a translational motion portion housing, which receives the double-sided teeth column; a rotating motion portion that is two gears engaging with the corresponding spline grooves from both the oppos
  • the spring cylinder preferably further comprises a rubber bladder which is arranged in the cylinder chamber, the gaseous medium is provided in the rubber bladder, and the spiral spring is supported at the periphery of the rubber bladder.
  • the outside of the cylinder wall of the spring cylinder is preferably provided with an inflation valve which communicates with the cylinder chamber.
  • the inside of the cylinder wall and the inside of the translational motion portion housing are preferably respectively provided with guide bracket fitted with the sliding sides of the double-sided teeth column.
  • the translational motion portion housing is preferably in continuation with a shield provided at outside of the two gears.
  • the other end of the double-sided teeth column is preferably provided with a stopping terminal having a larger radial width with buffering and damping device at its end.
  • the inner wall of the translational motion portion housing is preferably piecewise provided with a plurality of controllable stop mechanisms which fits with the stopping terminal, and the controllable stop mechanisms can block or release the translational motion of the stopping terminal in a direction away from the spring cylinder.
  • the interior of the translational motion portion housing is preferably provided with reinforcing ribs, and the controllable stop mechanism is arranged on the reinforcing rib.
  • the translational motion portion housing is constituted by a light and thin plate provided with air filtration gaps.
  • the invention further provides a vehicle energy storage/release when braking/actuating methed for vehicle using the above-mentioned device, comprising: when a vehicle is decelerating by braking, the vehicle drive shaft-wheel rotation causes a rotation of the two gears of the device for VES/RWB/A towards the first rotation direction namely "rotation of storing energy" via the input driving system, the two gears engagement with the spline grooves on the two opposite sides of the double-sided teeth column correspondingly causes the double-sided teeth column driving the piston to move translationally towards the first direction namely towards the inside of the spring cylinder and to compress the gaseous medium and the spiral spring in the spring cylinder, so as to enable the device for VES RWB/A to store energy and to decelerate , brake the vehicle meanwhile; when the vehicle is accelerating by actuating, the gaseous medium and the spiral spring compressed in
  • the device for VES/RWB/A is controlled by using the brake pedal or acceleration pedal to store/release energy when braking/actuating the vehicle.
  • the energy storage/release equipment can be of spring type, steelyard weight type and gaseous type et cetera; and for the gaseous type, a piston type and gas bladder type are usually used, and driven by fluid, namely by the hydraulic pressure (usually by oil pressure).
  • the spring cylinder of the device for VES/RWB/A combines the energy storage technologies of spring type with gas type, to enable to combine the pressure potential energy of the compressed gas with the elastic potential energy of the spring, in order to increase the stored and released energy without obviously increasing the volume of the cylinder; wherein the spiral spring is used as a frame of the rubber bladder, to support and hold the shape of the rubber bladder, and to reduce the friction between the bladder and inner wall of the cylinder, to therefore extend its service life.
  • the device for VES/RWB/A according to the invention is not driven by the hydraulic pressure, but directly driven in the way of "two gears— double sided teeth column
  • the upper limit for the amount of the energy stored/released by the device for VES/RWB/A according to the invention is called as energy storing/releasing amount which depends on the length of the cylinder, the area of the piston, the initial pressure and compression degree of the gaseous medium, and the elastic coefficient of the compressed spring etc.
  • the initial length of the gaseous medium in the cylindrical cylinder is set as 1
  • the initial pressure of the gaseous medium in the cylinder is set as p
  • the compressed length of the gaseous medium in the cylindrical cylinder is set as x
  • the area of piston is set as s
  • two or more said devices for VES/RWB/A can be used, and the device for VES/RWB/A can be used in combination with the traditional technologies driving system or associated with the power of the automobile engine to constitute hybrid power, if necessary; and with the development of the material science technology, the pressure tolerated by the cylinder is increased continuously, at present the gas type accumulators such as TOBUL gas bladder type can tolerate 7,500 PSI (51.8 Mpa), the piston type can tolerate 10,000 PSI (69 Mpa) etc., therefore the energy storing/releasing amount of the device for VES/RWB/A has a positive perspective in future.
  • the gas type accumulators such as TOBUL gas bladder type can tolerate 7,500 PSI (51.8 Mpa)
  • the piston type can tolerate 10,000 PSI (69 Mpa) etc.
  • the basic principle of the device for VES/RWB/A according to the invention is based on pneumatic transmission, while pneumatic transmission has common features , they are: (a) prompt action, quick response; (b) strong adaptability for work environment , in particular safe and reliable operation in harsh working conditions , such as in the working conditions with large temperture difference, flammable and explosive materials, dusts , vibration...; (c) simple structure, light weight; (d) easy to maintain; (e) lower manufacture cost etc..
  • the features are conducive to the implementation of the beneficial effects of the device for VES/RWB/A.
  • the device for VES/RWB/A according to the invention can be operated by using brake pedal or acceleration pedal, and essentially retains the traditional driving approach for vehicle.
  • the device for VES RWB/A takes part in vehicle braking and deceleration without emissions, meanwhile the lost kinetic energy of the vehicle can be recovered and stored in the device for VES RWB/A as a pressure potential energy of gas and an elastic potential energy of spring; the stored potential energy will be released when needed, and converted into kinetic energy to drive the vehicle by starting and accelartion, so that the energy saving and emission reducing of the vehicle can be achieved.
  • Fig 1 is a schematic longitudinal sectional view showing the structure of the device for vehicle energy storage/release when braking/actuating (device for VES/RWB/A) according to an embodiment of the invention
  • Fig 2 is a schematic longitudinal sectional view showing the structure of the rubber bladder arranged inside of the spring cylinder of the device for vehicle energy storage/release when braking/actuating (device for VES/RWB/A) according to an embodiment of the invention
  • Fig 3 is a schematic view showing the "rotation of storing energy" of the two upper and lower gears which balancedly drive the double-sided teeth column translational motion towards the inside of the spring cylinder, according to an embodiment of the invention
  • Fig 4 is a schematic view showing the double-sided teeth column translational motion away from the spring cylinder driving the two upper and lower gears "rotation of releasing energy" , according to an embodiment of the invention
  • Fig 5 is a schematic view showing a driving system for energy storage when braking according to an embodiment of the invention
  • Fig 6 is a schematic view showing a driving system for energy release when actuating according to an embodiment of the invention.
  • 1 spring cylinder
  • 2 gaseous medium
  • 3 double-sided teeth column
  • 4 inner chamber of translational motion portion
  • 5 engaging mechanism of two gears with double-sided teeth column
  • 6 input driving system
  • 7 output driving system
  • 8 spiral spring
  • 9 spline groove
  • 10 upper gear
  • 11 lower gear
  • 12 cylinder wall
  • 13 inflation valve
  • 14 pistion
  • 15 spring cylinder ( built-in rubber bladder )
  • 16 spiral spring ( frame of rubber bladder )
  • 17 rubber bladder
  • 18 movable end
  • 19 piston ( end of the rubber bladder )
  • 20 stopping terminal
  • 21 buffering and damping device
  • 22 controllable stop mechanism
  • 23 stop mechanism
  • this embodiment discloses a device that stores energy when braking a vehicle and releases said energy to actuate the vehicle referred to a device 34 for vehicle energy storage/release when braking/actuating (Abbreviation: device 34 for VES/RWB/A) , comprising: a spring cylinder 1 , comprising a cylinder wall 12 forming the cylinder chamber, a piston 14 slidably fitted with an inner wall 12 of the cylinder, and a spiral spring 8 arranged between the piston 14 and the end of the spring cylinder 1; the direction of the elastic force from the spiral spring 8 it parallel to the sliding direction of the piston 14; wherein a gaseous medium 2 is filled within the cylinder chamber; a translational motion portion 38 , comprising a double-sided teeth column 3, one end of which is connected with the piston 14, provided with spline grooves 9 at both opposing sides of the double-sided teeth column 3 , and a translational motion portion housing 27 which receives the double-
  • an inflation valve 13 which communicates with the cylinder chamber is provided at the outside of the cylinder wall 12 of the spring cylinder 1.
  • the gaseous medium 2 can be pressurized into the spring cylinder 1 via the inflation valve 13.
  • the cylinder wall 12 of the spring cylinder 1 is cylindrical, made of materials which can tolerate high pressure, and smooth on the inner surface.
  • the inflation valve 13 is arranged at the end of the cylinder wall 12 far away from the translational motion portion 38.
  • the two ends of the spiral spring 8 are respectively fixed at the end of the cylinder wall 12 far away from the translational motion portion 38 (on which the inflation valve 13 is arranged) and fixed at the piston 14.
  • the spiral spring 8 is a compression spring (pressure spring), a certain space exists between the rings of the spiral spring 8 with equal pitches, and when the spiral spring 8 is subjected to an axial external load, namely the piston 14 is subjected to a force towards the inside of the cylinder, the spaces between the rings of the spiral spring 8 can be decreased, and the spiral spring 8 is compressed to store a deformation energy, namely the elastic potential energy; while the spiral spring 8 is being compressed, the gaseous medium 2 in the spring cylinder 1 is compressed and the volume of the gaseous medium 2 in the spring cylinder 1 synchronously decreases, the pressure of the gaseous medium 2 increases in inversely proportional to the compressed volume of the gaseous medium 2, so that the pressure potential energy is stored.
  • pressure spring pressure spring
  • the spring cylinder 15 further comprises a rubber bladder 17 which is arranged in the cylinder chamber (built-in rubber bladder 17), the gaseous medium 2 is filled in the rubber bladder 17, and the spiral spring 16 is supported at the periphery of the rubber bladder 17.
  • the rubber bladder 17 consists of a rubber with good elasticity, and thus can tolerate a volume change within a certain range; one end of the rubber bladder 17 is a fixed end which communicates with the inflation valve 13, the gaseous medium 2 such as nitrogen can be pressurized into the rubber bladder 17 via the inflation valve 13; the other end of the rubber bladder 17 is a movable end 18 which abuts against the piston 19.
  • the rubber bladder 17 changes with it, and the volume of the rubber bladder 17 decreases to store a gaseous pressure potential energy.
  • the standard of the sealing element of piston 19 and the smooth finish requirements of the inner surface of the cylinder can be relatively low, so that the manufacture cost can be reduced.
  • the double-sided teeth column 3 is a long column with a proximate square cross-section provided with spline grooves 9 at both of its upper and lower sides, and the spline grooves 9 are extend longitudinally over the entire length of the double-sided teeth column 3;
  • the double-sided teeth column 3 is solid (for example, light metal), and can drive the piston 14, 19 moving towards the inside of the spring cylinder 1, 15; or in contrast, can be driven to move away from the spring cylinder 1, 15 by means of the piston 14, 19 which is moving towards outside.
  • a first guide bracket 25 and a second guide bracket 24 are arranged at the insides of the cylinder wall 12 and at the insides of the translational motion portion housing 27, respectively, both of which are fitted with the sliding sides of the double-sided teeth column 3.
  • the translational motion portion housing 27 is in continuation with a shield 28 provided at outsides of the two gears 10, 11, and their engaging mechanism 5 with the double-sided teeth column 3.
  • the translational motion portion housing 27 is in continuation with the spring cylinder 1, 15 also cylindrical; the upper and lower sides as well as the two lateral surfaces of the double-sided teeth column 3 are smooth planes and coated with a lubricant except the part on which the spline grooves 9 are arranged; the friction force between the first guide bracket 25, the second guide bracket 24 and the double-sided teeth column 3 is small when the later is moving translationally under the effect of a force which is longitudinally parallel to the double-sided teeth column 3.
  • the other end of the double-sided teeth column 3 is provided with a stopping terminal 20 having a larger radial width with buffering and damping device 21 at its end ;
  • the inner wall of the translational motion portion housing 27 is provided with a plurality of controllable stop mechanisms 22 which are fitted with the stopping terminal 20.
  • the controllable stop mechanisms 22 are piecewise distributed along the sliding direction of the stopping terminal 20, and can block or release the translational motion of the stopping terminal 20 in the direction far away from the spring cylinder 1, 15. As shown in fig. 1 and fig.
  • the controllable stop mechanisms 22 can be configured in a wedge shape with incline facing away from the spring cylinder 1, 15; when the double-sided teeth column 3 is moving towards inside of the spring cylinder 1, 15, the stopping terminal 20 of the double-sided teeth column 3 can smoothly advance through the inclined plane of the controllable stop mechanisms 22; while when the double-sided teeth column 3 is moving away from the spring cylinder 1, 15, the stopping terminal 20 of the double-sided teeth column 3 can be blocked by the controllable stop mechanisms 22 , and the stopping terminal 20 can only be released until the controllable stop mechanism 22 is controlled to retract.
  • a plurality of reinforcing ribs 26 are provided inside the translational motion portion housing 27, and the controllable stop mechanisms 22 are arranged on the reinforcing ribs 26.
  • the reinforcing ribs 26 are light metal beams which can be used to enforce the longitudinal structure of the translational motion portion housing 27.
  • the end 23 of the translational motion portion housing 27 is made of a solid material and fixedly connected with the reinforcing ribs 26 made of light metal beam with sufficient structural strength in order to stop the translational motion of the stopping terminal 20 of the double-sided teeth column 3 away from the spring cylinder 1, 15 at the end 23 of the translational motion portion housing 27 herein.
  • the other part of the translational motion portion housing 27 is constituted by a light and thin plate with some air filtration gaps protecting the double-sided teeth column 3 and against dust entering the inner chamber 4 of translational motion portion 38.
  • the upper gears 10 and lower gear 11 are aranged above and below the double-sided teeth column 3, respectively; at the location , where the translational motion portion housing 27 is adjacent to the spring cylinder 1, 15 outer edge, the two gears 10, 11 engage with the spline grooves 9 on the upper and lower sides of the double-sided teeth column 3 in the two opposite sides, so that the two upper and lower gears 10, 11 actively rotate in relative opposite directions (one in clockwise direction and the other in anticlockwise direction) to drive the double-sided teeth column 3 which passively translationally moves; and in contrast, the active translational motion of the double-sided teeth column 3 can also drive the upper and lower gears 10, 11 to passively rotate corespondingly.
  • the engaging mechanism 5 of the two gears 10, 1 from two sides engaging the double-sided teeth column 3 differs from the usual gear and rack mechansim in which rotating gear from one side engages rack and the rack has only this one side with teeth — spline groove as in the conventional art; while according to the invention, there are two gears 10, 11 which engage with the double-sided teeth column 3 from two opposite sides, so that the double-sided teeth column 3 as a "piston rod” is subjected to two forces from vertically upward and downward directions which can cancel each other out, and the resulting force of the two upper and lower gears 10, 11 which rotate in combination as mentioned above is in a direction longitudinally parellel to the double-sided teeth column 3 as a "piston rod".
  • the engaging mechanism 5 of the two gears 10, 11 with the double-sided teeth column 3 is characterized in that the two upper and lower gears 10, 11 engage with the spline grooves 9 of the double-sided teeth column 3 correspondingly, this is also the structure basic which allows the two upper and lower gears 10, 11 actively rotate, so as to drive the double-sided teeth column 3 to passvively translationally move, and the double-sided teeth column 3 actively translationally moves to drive the two upper and lower gears 10, 11 to passively rotate.
  • the input driving system 6 is a mechanical driving system from rotating of the vehicle wheels 27 and the drive shaft 33 to causing the "rotation of storing energy" 29 of the two upper and lower gears 10, 11, the input driving system 6 is also called as an driving system for energy storage when braking; via the input driving system 6 the rotation of the vehicle wheels 27 and the drive shaft 33 cuases the "rotation of storing energy" 29 of the two upper and lower gears 10, 11, then the double-sided teeth column 3 and the pistons 14, 19 are driven to move towards the inside of the spring cylinder 1, 15 as mentioned above, to compress the spiral spring 8, 16 and the gaseous medium 2 in the spring cylinder 1,15, so that the potential energy in the spring cylinder 1,15 (elastic potential energy of spring 8 , 16 and pressure potential energy of gas 2) increases and is stored, the kinetic energy of the vehicle wheels 27 and the drive shaft 33 decreases, so the vehicle brakes and decelerates; the device 34 for VES RWB/A
  • the output driving system 7 is a driving system which transmits the "rotation of releasing energy" 32 of the two upper and lower gears 10, 11 to a hybrid power device 35 of the vehicle, the output driving system 7 is also called as the energy release driving system; the potential energy (elastic potential energy of spring and pressure potential energy of gas) stored in the spring cylinder 1, 15 is released and converted into kinetic energy of the "rotation of releasing energy” 32 of the two upper and lower gears 10,11, which is used as a motive power to be transimtted into the hybrid power device 35 of the vehicl via the driving system 7, in order to achieve a starting or acceleraton of the vehicle co-drivn by the automobile engine 36 and the device 34 for VES RWB/A or solely driven by one of the two, and the device 34 for VES/RWB/A according to the invention takes part in the process of the vehicle energy release when actuating; the above-mentioned functions
  • the upper limit for the amount of the energy stored and released by the device 34 for VES/RWB/A according to the inveiton is called as energy storing/releasing amount
  • the energy storing/releasing amount of the device 34 for VES RWB/A depends on the size of the spring cylinder 1, 15, such as the length and inner diameter of the cylinder (namely the area of the piston 14, 19), the initial pressure and the compression degree of the gas medium 2, and the elastic coefficient of the spiral spring 8, 16, these parameters are mutually matching and preferably suitable for the design requirements of the vehicle; since the vehicle in operation repeats the process of braking-starting and/or decelerating-acclerating within an energy changing range which is not very wide, such as braking from speed of 50 km/h to zero speed and then starting from zero speed to 50 km/h, decelerating from speed of 70 km/h to 50 km/h and then accelerating from 50 km/h to 70 km/h etc; a device 34 for VES
  • the example discloses a vehicle energy storage/release when braking/actuating method for the above-mentioned device 34 for VES/RWB/A, comprising the following steps: when a vehicle is decelerating through braking, the vehicle drive shaft 33 -wheel 37 rotation causes a rotation of the two gears 10 , 11 of the device 34 for VES/RWB/A in the first rotation direction 29 namely "rotation of storing energy" 29 via the input driving system 6, the two gears 10 , 11 engagement with the spline grooves 9 on the two opposite sides of the double-sided teeth column 3 correspondingly causes the double-sided teeth column 3 driving the piston 14, 19 to move translationaliy in the first direction 30 namely toward the inside of the spring cylinder 1, 15 and to compress the gaseous medium 2 and the spiral spring 8, 16 in the spring cylinder 1, 15, so as to enable the device 34 to store energy and meanwhile to decelerate , brake the vehicle; when the vehicle is accelerating by actuating, the gas medium 2 and the spiral spring 8, 16 compressed in
  • the two gears 10 , 11 rotate in a second rotating direction 32 namely "rotation of releasing energy" 32 opposite to the first rotating direction due to the engagement of the two gears 10 , 11 with the spline grooves 9 on the two opposite sides of the double-sided teeth column 3, further to transmit the rotational kinetic energy to the hybrid power device 35 via the output driving system 7, in order to provide the vehicle with power to actuate, accelerate.
  • the device 34 for VES/RWB/A is controlled by using the brake pedal to store energy through braking or acceleration pedal to release the energy to actuate the vehicle.
  • the said method particularly comprises the following steps:
  • the vehicle brake pedal is pedaled suitably, and a distance amount of the pedaled brake pedal is converted into an electrical signal and input into a central control unit, and a computer analyzes and calculates various traveling data which are sent to the
  • Controller Area Network-BUS (“CAN bus technology”) and sends corresponding commands to the input driving system 6; and the rotation of the vehicle wheels 37 and the drive shaft 33 via the transmission of the input driving system 6 causes the "rotation of storing energy” 29 of the two upper and lower gears 10, 11, to further drive the double-sided teeth column 3 and the pistons 14,19 to move towards the inside of the spring cylinder 1, 15, in order to compress the spiral spring 8, 16 and the gaseous medium 2 in the spring cylinder 1,15, so that the potential energy (elastic potential energy of spring and pressure potential energy of gas) in the spring cylinder 1, 15 increases; since the stopping terminal 20 of the double-sided teeth column 3 is prevented, by the controllable stop mechanism 22 in the translational motion portion housing 27, from translationally moving away from the cylinder 1, 15, the potential energy (elastic potential energy of spring and pressure potential energy of gas) is stored in the spring cylinder 1, 15, and the kinetic energy of the rotating wheels 37 and the drive shaft 33 decreases, and then the vehicle brakes and decelerates to stop;
  • the vehicle acceleration pedal is pedaled suitably, a distance amount of the pedaled acceleration pedal is converted into an electrical signal and input into the central control unit, the controllable stop mechanism 22 releases the stopping terminal 20 of the double-sided teeth column 3 in the translational motion portion housing 27 under a control of an automobile computer central control unit, and the elastic force of the compressed spring 8, 16 and the pressure of the compressed gaseous medium 2 in the spring cylinder 1, 15 drive the piston 14, 19 and the double-sided teeth column 3 to translationally move 31 far away from the spring cylinder 1, 15, to further drive the two upper and lower gears 10, 11, in order to achieve the "rotation of releasing energy" 32; and the computer analyzes and calculates various traveling data sent to the "Controller Area Network-BUS" ("CAN bus technology") and sends corresponding commands to the output driving system 7, and the kinetic energy of the "rotation of releasing energy" 32 of the two upper and lower gears 10, 11, as a motive power, can be transimtted into the hybrid power device 35 of the veh
  • the vehicle can be co-driven by the automobile engine 36 and the device 34 for VES/RWB/A or solely driven by either of them via the hybrid power device 35 of the vehicl, under a control of an automobile computer central control unit;
  • the vehicle brake pedal is pedaled slightly, and a distance amount of the pedaled brake pedal is converted into an electrical signal and input into a central control unit; and a computer analyzes and calculates various traveling data which are sent to the "Controller Area Network-BUS" ("CAN bus technology") and sends corresponding commands to the input driving system 6; and the rotation of the vehicle wheels 37 and the drive shaft 33 via the input driving system 6 causes a suitable "rotation of storing energy” 29 of the two upper and lower gears 10, 11, to further drive the double-sided teeth column 3 and the pistons 14, 19 to move towards the inside of the spring cylinder 1, 15, in order to compress the spiral spring 8, 16 and the gaseous medium 2 in the spring cylinder 1, 15; and the stopping terminal 20 of the double-sided teeth column 3 is stopped, by the controllable stop mechanism 22, to a suitable position in the translational motion portion housing 27, so that the potential energy (elastic potential energy of spring and pressure potential energy of gas) in the spring cylinder 1, 15 increases and is
  • the traditional brake technologies can be applied suitably, if neccessary, under a control of an automobile computer central control unit, in order to ensure the vehicle to drastically decelerate;
  • the acceleration pedal is pedaled slightly, and a distance amount of the pedaled acceleration pedal is converted into an electrical signal and input into a central control unit, and the controllable stop mechanism 22 releases the stopping terminal 20 of the double-sided teeth column 3 in the translational motion portion housing, and the elastic force of the being compressed spring 8,16 and the pressure of the compressed gas medium 2 in the spring cylinder 1, 15 drive the piston 14, 19 and the double-sided teeth column 3 to translationally move 31 away from the spring cylinder 1,15, so that the potential energy (elastic potential energy of spring and pressure potential energy of gas) stored in the spring cylinder 1, 15 can be released suitably, to drive a suitable
  • the vehicle in operation repeats the process of braking-starting and/or deceleration-accleration within an energy changing range which are within the energy storing/releasing amount range of the device 34 for VES/RWB/A, and the brake pedal and the acceleration pedal are slightly pedaled alternatively, as above mentioned method in steps 1, 2, 4 and 6, so that the device 34 for VES/RWB/A repeats the storing energy when braking and releasing the energy for actuating, to brake / start and decelerate / accelerate repeatedly and to achieve energy saving and emission reducing effectively;
  • the vehicle brake pedal or the acceleration pedal can pedal in a certain deep degree, as above mentioned method in steps 5 or 3;
  • the traditional brake technologies can be applied suitably during the process of braking and decelerating the vehicle under a control of an automobile computer central control unit, or the automobile engine 36 can be applied with a higher power via the hybrid power device 35 of the vehicle during the process of starting and accelerating the vehicle, namely the function superposition of the device 34 for VES/RWB/A and the traditional brake technologies, or the function superposition of the device 34 for VES/RWB/A and the motive power of the automobile engine 36 can be applied, in order to
  • the gas can be pressurized into the spring cylinder 1 or the rubber bladder 17 via the inflation valve 13 of the device 34 for VES/RWB/A to reach the required pressure, and the gaseous medium 2 can be nitrogen.

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Abstract

The invention discloses a device that stores energy when braking a vehicle and releases said energy to actuate the vehicle referred to a device for vehicle energy storage/release when braking/actuating (Abbreviation: device for VES/RWB/A), it comprises a spring cylinder comprising a cylinder wall forming a cylinder chamber, a piston slidably fitted with an inner wall of the cylinder, and a spiral spring arranged between the piston and the end of the cylinder, and the direction of the elastic force from the spiral spring is parallel to the sliding direction of the piston; wherein a gaseous medium is filled within the cylinder chamber; a translational motion portion comprising a double-sided teeth column provided with spline grooves at both opposing sides along the sliding direction and an end of which is connected with the piston, and comprising a translational motion portion housing which receives the double-sided teeth column; a rotating motion portion, two gears engaging with the corresponding spline grooves from both the opposing sides, and respectively connected to a vehicle brake system via an input driving system, and to a hybrid power device via an output driving system. Furthermore, the invention discloses a method for using the device. The energy saving and emission reducing can be achieved through the device and method according to the invention.

Description

Description
Device for vehicle energy storage/release when braking/actuating and method thereof
Technical field The invetion relates to the techinical field of vehicle energy saving, in particular to a device that stores energy when braking a vehicle and releases said energy to actuate the vehicle referred to a device for vehicle energy storage/release when braking/actuating (Abbreviation: device for VES RWB/A) and method thereof.
Background art The automobile industry has been developing since 1885 when the German Daimler and Benz mounted a combustion motor on a tricycle. A normal Sedan is made of ten thousands of components, and the power system, speed control system, driving system, suspension system, steering system, brake system, electric system and automobile body system integrate the modern science and technologies. For example, the mechanical transmission in the driving system is achieved by combining and matching various gears, in order to achieve the interchange of rotations between longitudinal shafts and lateral shafts, the change between high and low speeds, the changes in the size of torque, the change of moving directions, the interchange between one set and more of rotations etc, wherein a way of simple movement can be transformed into that of complex movement accompanying kinetic energy transmission according to design requirements. Computers are the core of the central control unit in the electrical system, and the technology of "Controller Area Network-BUS" which was used at first in the aircraft takes part in the data transmission of sensors arranged throughout the automobile body, easily achiving the accurate control of driving and security functions. However, the automobile industry has been increasingly facing serious problems with the energy saving and emission reducing. When the vehicle brakes and decelerates through the traditional technologies (such as, brake drum or brake disc, exciting heat through friction), a part of the kinetic energy dissipates as heat energy. How to use this part of the kinetic energy, as well as searching new energy and clean energy for automobile power has become hot topics.
As a result, the hybrid power vehicle has been developed. In particular, hybrid electric vehicles have been produced commercially. A key technology referred to as power composite device appears therewith. The power composite device combines the automobile engine with another new power (that is the combination of an automobile engine with a motor or a generator/motor for the hybrid electric vehicle), so that the vehicle can be co-driven by both of the automobile engine and another new power or can be solely driven by either of them.
The hybrid electric vehicle has achieved an improvement for energy saving and emission reduction, but still got a plurality of problems as follows: (1) its power system needs a generator, an accumulator jar, and a motor or a generator/motor besides the automobile engine, which occupy a larger space and weight of the vehicle; (2) the electrical energy of the accumulator jar comes from an external and/or an vehicle-mounted energy resource, which still consume the energy and fuel in a certain degree; (3) the efficiency of recycling and using the kinetic energy which is lost by braking and decelerating the vehicle is limited, because (a) if a electricity generator and another electric motor are respectively used in the hybrid electric vehicle, namely the electrical energy that is generated via the rotation of the vehicle wheels (cutting the magnetic-curves) when braking and decelerating the vehicle is collected by a specific vehicle-mounted electricity generator and stored in an accumulator jar, and then the electrical energy obtained from the accumulator jar when starting and accelerating the vehicle is used by another specific vehicle-mounted electric motor to drive the vehicle wheels, the number of the vehicle-mounted devices, and thereby the weight will be increased; (b) if the above-mentioned functions of the electricity generator and electric motor are accomplished by one so called generator/motor, although a generator and a motor can be replaced with each other in principle and their structures are fundamentally identical, a generator well designed in the practical structure used as a motor or a motor well designed in the practical structure used as a generator will both have lower efficiency, due to their different work tasks and specific requirements; (c) the generator converts a mechanical energy into an electrical energy to be input and stored in an accumulator jar, and then output from the accumulator jar, the electrical energy is input to a motor to be converted into a mechanical energy again, during which process the energy loss is considerable.
As for the application of the hydraulic pressure transmission technology in storage of the lost kinetic energy when braking and decelerating the vehicle, a large number of complex hydraulic pressure elements and circuits which have to be fitted with each other are difficult to be arranged and used in a space-limited vehicle.
Contents of the invention ( I ) Technical problems to be solved
The technical problems to be solved by the invention is to provide a device for vehicle energy storage/release when braking/actuating with simple structure and a method for the same, wherein, when the vehicle needs to brake or decelerate, the said device can be used to brake or decelerate the vehicle meanwhile the lost kinetic energy of the vehicle can be stored in the device; and when the vehicle needs to start or accelerate, the device can release the stored energy to drive the vehicle starting or accelerating, in order to achieve energy saving and emission reducing. ( II ) Technical Solutions
In an aspect of the invention, the above problem is solved by a device that stores energy when braking a vehicle and releases said energy to actuate the vehicle referred to a device for vehicle energy storage/release when braking/actuating (Abbreviation: device for VES/RWB/A), comprising: a spring cylinder , comprising a cylinder wall forming the cylinder chamber, a piston slidably fitted with an inner wall of the cylinder, and a spiral spring arranged between the piston and the ends of the cylinder; the direction of the elastic force from the spiral spring is parallel to the sliding direction of the piston; a gaseous medium filled in the cylinder chamber; a translational motion portion , comprising a double-sided teeth column, one end of which is connected with the piston, provided with spline grooves at both opposing sides of the double-sided teeth column, and a translational motion portion housing, which receives the double-sided teeth column; a rotating motion portion that is two gears engaging with the corresponding spline grooves from both the opposing sides of the double-sided teeth column, the two gears are respectively connected with a vehicle drive shaft- wheel rotation brake system via an input driving system and connected with a hybrid power device via an output driving system.
The spring cylinder preferably further comprises a rubber bladder which is arranged in the cylinder chamber, the gaseous medium is provided in the rubber bladder, and the spiral spring is supported at the periphery of the rubber bladder. The outside of the cylinder wall of the spring cylinder is preferably provided with an inflation valve which communicates with the cylinder chamber.
The inside of the cylinder wall and the inside of the translational motion portion housing are preferably respectively provided with guide bracket fitted with the sliding sides of the double-sided teeth column. The translational motion portion housing is preferably in continuation with a shield provided at outside of the two gears.
The other end of the double-sided teeth column is preferably provided with a stopping terminal having a larger radial width with buffering and damping device at its end.
The inner wall of the translational motion portion housing is preferably piecewise provided with a plurality of controllable stop mechanisms which fits with the stopping terminal, and the controllable stop mechanisms can block or release the translational motion of the stopping terminal in a direction away from the spring cylinder. The interior of the translational motion portion housing is preferably provided with reinforcing ribs, and the controllable stop mechanism is arranged on the reinforcing rib.
Preferably, the translational motion portion housing is constituted by a light and thin plate provided with air filtration gaps. In another aspect, the invention further provides a vehicle energy storage/release when braking/actuating methed for vehicle using the above-mentioned device, comprising: when a vehicle is decelerating by braking, the vehicle drive shaft-wheel rotation causes a rotation of the two gears of the device for VES/RWB/A towards the first rotation direction namely "rotation of storing energy" via the input driving system, the two gears engagement with the spline grooves on the two opposite sides of the double-sided teeth column correspondingly causes the double-sided teeth column driving the piston to move translationally towards the first direction namely towards the inside of the spring cylinder and to compress the gaseous medium and the spiral spring in the spring cylinder, so as to enable the device for VES RWB/A to store energy and to decelerate , brake the vehicle meanwhile; when the vehicle is accelerating by actuating, the gaseous medium and the spiral spring compressed in the spring cylinder extend to release the energy, so as to cause the piston driving the double-sided teeth column to translationally move towards the second direction namely away from the spring cylinder opposite to the first direction, the two gears rotate in the second rotating direction namely "rotation of releasing energy" opposite to the first rotating direction due to the engagement of the two gears with the spline grooves on the two opposite sides of the double-sided teeth column, further to transmit the rotational kinetic energy to the hybrid power device via the output driving system, in order to provide the vehicle with power to actuate, accelerate.
Preferably, the device for VES/RWB/A is controlled by using the brake pedal or acceleration pedal to store/release energy when braking/actuating the vehicle.
( III ) beneficial effects
In the conventional technique of the hydraulic transmission system, the energy storage/release equipment can be of spring type, steelyard weight type and gaseous type et cetera; and for the gaseous type, a piston type and gas bladder type are usually used, and driven by fluid, namely by the hydraulic pressure ( usually by oil pressure).
The spring cylinder of the device for VES/RWB/A according to the invention combines the energy storage technologies of spring type with gas type, to enable to combine the pressure potential energy of the compressed gas with the elastic potential energy of the spring, in order to increase the stored and released energy without obviously increasing the volume of the cylinder; wherein the spiral spring is used as a frame of the rubber bladder, to support and hold the shape of the rubber bladder, and to reduce the friction between the bladder and inner wall of the cylinder, to therefore extend its service life.
Moreover, the device for VES/RWB/A according to the invention is not driven by the hydraulic pressure, but directly driven in the way of "two gears— double sided teeth column
— piston", so that many of driving elements and pipes for hydraulic pressure can be omitted, therefore the volume, weight and manufacture cost of the equipment can be reduced; in addition, for those energy storage/release equipments of the hydraulic transmission system driven by a hydraulic pressure, there is a need for "oil ports" which have to be arranged downwards and vertically, however the device for VES/RWB/A according to the invention has no "oil ports" and thus is convenient for the mounting.
The upper limit for the amount of the energy stored/released by the device for VES/RWB/A according to the invention is called as energy storing/releasing amount which depends on the length of the cylinder, the area of the piston, the initial pressure and compression degree of the gaseous medium, and the elastic coefficient of the compressed spring etc. If only the compresed gas is calculated for the approximate value as the energy storing/releasing amount of the device for VES/RWB/A (set as W), the initial length of the gaseous medium in the cylindrical cylinder is set as 1, the initial pressure of the gaseous medium in the cylinder is set as p, the compressed length of the gaseous medium in the cylindrical cylinder is set as x, and the area of piston is set as s, then
Figure imgf000007_0001
The mutual matching and preferable values of the parameters enable the energy storing/releasing amount of the device for VES RWB/A to be suitable for the energy storage and release variation range of the usual braking-starting and deceleration-acceleration during operation of the vehicle. According to design requirements, two or more said devices for VES/RWB/A can be used, and the device for VES/RWB/A can be used in combination with the traditional technologies driving system or associated with the power of the automobile engine to constitute hybrid power, if necessary; and with the development of the material science technology, the pressure tolerated by the cylinder is increased continuously, at present the gas type accumulators such as TOBUL gas bladder type can tolerate 7,500 PSI (51.8 Mpa), the piston type can tolerate 10,000 PSI (69 Mpa) etc., therefore the energy storing/releasing amount of the device for VES/RWB/A has a positive perspective in future.
The basic principle of the device for VES/RWB/A according to the invention is based on pneumatic transmission, while pneumatic transmission has common features , they are: (a) prompt action, quick response; (b) strong adaptability for work environment , in particular safe and reliable operation in harsh working conditions , such as in the working conditions with large temperture difference, flammable and explosive materials, dusts , vibration...; (c) simple structure, light weight; (d) easy to maintain; (e) lower manufacture cost etc.. The features are conducive to the implementation of the beneficial effects of the device for VES/RWB/A. The device for VES/RWB/A according to the invention can be operated by using brake pedal or acceleration pedal, and essentially retains the traditional driving approach for vehicle.
The device for VES RWB/A according to the invention takes part in vehicle braking and deceleration without emissions, meanwhile the lost kinetic energy of the vehicle can be recovered and stored in the device for VES RWB/A as a pressure potential energy of gas and an elastic potential energy of spring; the stored potential energy will be released when needed, and converted into kinetic energy to drive the vehicle by starting and accelartion, so that the energy saving and emission reducing of the vehicle can be achieved. Description of figures
Fig 1 is a schematic longitudinal sectional view showing the structure of the device for vehicle energy storage/release when braking/actuating (device for VES/RWB/A) according to an embodiment of the invention; Fig 2 is a schematic longitudinal sectional view showing the structure of the rubber bladder arranged inside of the spring cylinder of the device for vehicle energy storage/release when braking/actuating (device for VES/RWB/A) according to an embodiment of the invention;
Fig 3 is a schematic view showing the "rotation of storing energy" of the two upper and lower gears which balancedly drive the double-sided teeth column translational motion towards the inside of the spring cylinder, according to an embodiment of the invention;
Fig 4 is a schematic view showing the double-sided teeth column translational motion away from the spring cylinder driving the two upper and lower gears "rotation of releasing energy" , according to an embodiment of the invention;
Fig 5 is a schematic view showing a driving system for energy storage when braking according to an embodiment of the invention;
Fig 6 is a schematic view showing a driving system for energy release when actuating according to an embodiment of the invention. wherein, 1: spring cylinder; 2: gaseous medium; 3: double-sided teeth column; 4: inner chamber of translational motion portion; 5: engaging mechanism of two gears with double-sided teeth column; 6: input driving system; 7: output driving system; 8: spiral spring; 9: spline groove; 10: upper gear; 11: lower gear; 12: cylinder wall; 13: inflation valve; 14: pistion ; 15: spring cylinder ( built-in rubber bladder ) ; 16: spiral spring ( frame of rubber bladder ) ; 17: rubber bladder; 18: movable end; 19: piston ( end of the rubber bladder ) ; 20: stopping terminal ; 21: buffering and damping device; 22: controllable stop mechanism; 23:
g end of the translational motion portion housing; 24: second guide bracket; 25: first guide bracket; 26: reinforcing rib; 27: translational motion portion housing; 28: shield; 29: "rotation of storing energy"( first rotation direction ) ; 30: translational motion towards inside of spring cylinder (translational motion in a first dirction); 31 : translational motion away from spring cylinder (translational motion in a second dirction); 32: "rotation of releasing energy"
( second rotation direction ) ; 33: drive shaft; 34: device for vehicle energy storage/release when braking/actuating (device for VES RWB/A); 35: hybrid power device; 36: automobile engine; 37: wheel; 38: translational motion portion; 39: rotating motion portion.
Best Mode for Carrying Out the Invention In the following detailed description, the invention will be described in reference with drawings and embodiments.
Example I :
As shown in fig. 1, fig. 5 and fig. 6, this embodiment discloses a device that stores energy when braking a vehicle and releases said energy to actuate the vehicle referred to a device 34 for vehicle energy storage/release when braking/actuating (Abbreviation: device 34 for VES/RWB/A) , comprising: a spring cylinder 1 , comprising a cylinder wall 12 forming the cylinder chamber, a piston 14 slidably fitted with an inner wall 12 of the cylinder, and a spiral spring 8 arranged between the piston 14 and the end of the spring cylinder 1; the direction of the elastic force from the spiral spring 8 it parallel to the sliding direction of the piston 14; wherein a gaseous medium 2 is filled within the cylinder chamber; a translational motion portion 38 , comprising a double-sided teeth column 3, one end of which is connected with the piston 14, provided with spline grooves 9 at both opposing sides of the double-sided teeth column 3 , and a translational motion portion housing 27 which receives the double-sided teeth column 3 ; a rotating motion portion 39 that is two gears 10, 11 engaging with the corresponding spline grooves 9 from both the opposing sides of the double-sided teeth column 3, the two gears 10, 11 are respectively connected with a vehicle drive shaft 33— wheel 37 rotation brake system via an input driving system 6 and connected with a hybrid power device 35 via an output driving system 7.
In this embodiment, an inflation valve 13 which communicates with the cylinder chamber is provided at the outside of the cylinder wall 12 of the spring cylinder 1. The gaseous medium 2 can be pressurized into the spring cylinder 1 via the inflation valve 13.
As shown in fig 1, in this embodiment, the cylinder wall 12 of the spring cylinder 1 is cylindrical, made of materials which can tolerate high pressure, and smooth on the inner surface. The inflation valve 13 is arranged at the end of the cylinder wall 12 far away from the translational motion portion 38. The two ends of the spiral spring 8 are respectively fixed at the end of the cylinder wall 12 far away from the translational motion portion 38 (on which the inflation valve 13 is arranged) and fixed at the piston 14. The spiral spring 8 is a compression spring (pressure spring), a certain space exists between the rings of the spiral spring 8 with equal pitches, and when the spiral spring 8 is subjected to an axial external load, namely the piston 14 is subjected to a force towards the inside of the cylinder, the spaces between the rings of the spiral spring 8 can be decreased, and the spiral spring 8 is compressed to store a deformation energy, namely the elastic potential energy; while the spiral spring 8 is being compressed, the gaseous medium 2 in the spring cylinder 1 is compressed and the volume of the gaseous medium 2 in the spring cylinder 1 synchronously decreases, the pressure of the gaseous medium 2 increases in inversely proportional to the compressed volume of the gaseous medium 2, so that the pressure potential energy is stored. Fig 2 shows an alternative of the embodiment according to the invention, the spring cylinder 15 further comprises a rubber bladder 17 which is arranged in the cylinder chamber (built-in rubber bladder 17), the gaseous medium 2 is filled in the rubber bladder 17, and the spiral spring 16 is supported at the periphery of the rubber bladder 17. The rubber bladder 17 consists of a rubber with good elasticity, and thus can tolerate a volume change within a certain range; one end of the rubber bladder 17 is a fixed end which communicates with the inflation valve 13, the gaseous medium 2 such as nitrogen can be pressurized into the rubber bladder 17 via the inflation valve 13; the other end of the rubber bladder 17 is a movable end 18 which abuts against the piston 19. When the spiral spring 16 is subjected to an axial external load and compressed to store the deformation energy, namely the elastic potential energy, the rubber bladder 17 changes with it, and the volume of the rubber bladder 17 decreases to store a gaseous pressure potential energy. Regarding the spring cylinder 15 in which the rubber bladder 17 is arranged, the standard of the sealing element of piston 19 and the smooth finish requirements of the inner surface of the cylinder can be relatively low, so that the manufacture cost can be reduced.
In the embodiments shown in fig. 1 and fig. 2, the double-sided teeth column 3 is a long column with a proximate square cross-section provided with spline grooves 9 at both of its upper and lower sides, and the spline grooves 9 are extend longitudinally over the entire length of the double-sided teeth column 3; the double-sided teeth column 3 is solid (for example, light metal), and can drive the piston 14, 19 moving towards the inside of the spring cylinder 1, 15; or in contrast, can be driven to move away from the spring cylinder 1, 15 by means of the piston 14, 19 which is moving towards outside. A first guide bracket 25 and a second guide bracket 24 are arranged at the insides of the cylinder wall 12 and at the insides of the translational motion portion housing 27, respectively, both of which are fitted with the sliding sides of the double-sided teeth column 3.
The translational motion portion housing 27 is in continuation with a shield 28 provided at outsides of the two gears 10, 11, and their engaging mechanism 5 with the double-sided teeth column 3.
As shown in fig. 1 and fig. 2, the translational motion portion housing 27 is in continuation with the spring cylinder 1, 15 also cylindrical; the upper and lower sides as well as the two lateral surfaces of the double-sided teeth column 3 are smooth planes and coated with a lubricant except the part on which the spline grooves 9 are arranged; the friction force between the first guide bracket 25, the second guide bracket 24 and the double-sided teeth column 3 is small when the later is moving translationally under the effect of a force which is longitudinally parallel to the double-sided teeth column 3.
The other end of the double-sided teeth column 3 is provided with a stopping terminal 20 having a larger radial width with buffering and damping device 21 at its end ; the inner wall of the translational motion portion housing 27 is provided with a plurality of controllable stop mechanisms 22 which are fitted with the stopping terminal 20. The controllable stop mechanisms 22 are piecewise distributed along the sliding direction of the stopping terminal 20, and can block or release the translational motion of the stopping terminal 20 in the direction far away from the spring cylinder 1, 15. As shown in fig. 1 and fig. 2, the controllable stop mechanisms 22 can be configured in a wedge shape with incline facing away from the spring cylinder 1, 15; when the double-sided teeth column 3 is moving towards inside of the spring cylinder 1, 15, the stopping terminal 20 of the double-sided teeth column 3 can smoothly advance through the inclined plane of the controllable stop mechanisms 22; while when the double-sided teeth column 3 is moving away from the spring cylinder 1, 15, the stopping terminal 20 of the double-sided teeth column 3 can be blocked by the controllable stop mechanisms 22 , and the stopping terminal 20 can only be released until the controllable stop mechanism 22 is controlled to retract.
In this embodiment, a plurality of reinforcing ribs 26 are provided inside the translational motion portion housing 27, and the controllable stop mechanisms 22 are arranged on the reinforcing ribs 26. In this embodiment, the reinforcing ribs 26 are light metal beams which can be used to enforce the longitudinal structure of the translational motion portion housing 27.
In this embodiment, the end 23 of the translational motion portion housing 27 is made of a solid material and fixedly connected with the reinforcing ribs 26 made of light metal beam with sufficient structural strength in order to stop the translational motion of the stopping terminal 20 of the double-sided teeth column 3 away from the spring cylinder 1, 15 at the end 23 of the translational motion portion housing 27 herein. The other part of the translational motion portion housing 27 is constituted by a light and thin plate with some air filtration gaps protecting the double-sided teeth column 3 and against dust entering the inner chamber 4 of translational motion portion 38.
As shown in fig. 3 and fig. 4, the upper gears 10 and lower gear 11 are aranged above and below the double-sided teeth column 3, respectively; at the location , where the translational motion portion housing 27 is adjacent to the spring cylinder 1, 15 outer edge, the two gears 10, 11 engage with the spline grooves 9 on the upper and lower sides of the double-sided teeth column 3 in the two opposite sides, so that the two upper and lower gears 10, 11 actively rotate in relative opposite directions (one in clockwise direction and the other in anticlockwise direction) to drive the double-sided teeth column 3 which passively translationally moves; and in contrast, the active translational motion of the double-sided teeth column 3 can also drive the upper and lower gears 10, 11 to passively rotate corespondingly. Due to one of the functions of the double-sided teeth column 3 is as a "piston rod" pushing the pistons 14, 19 to translationally move in the cylinder, the forced direction of the "piston rod" should be longitudinally parellel to the "piston rod", and the "piston rod" should not be affected by an unbalanced forec in vertical direction from a sigle side of the
"piston rod", therefore the engaging mechanism 5 of the two gears 10, 1 from two sides engaging the double-sided teeth column 3 differs from the usual gear and rack mechansim in which rotating gear from one side engages rack and the rack has only this one side with teeth — spline groove as in the conventional art; while according to the invention, there are two gears 10, 11 which engage with the double-sided teeth column 3 from two opposite sides, so that the double-sided teeth column 3 as a "piston rod" is subjected to two forces from vertically upward and downward directions which can cancel each other out, and the resulting force of the two upper and lower gears 10, 11 which rotate in combination as mentioned above is in a direction longitudinally parellel to the double-sided teeth column 3 as a "piston rod".
Therefore the engaging mechanism 5 of the two gears 10, 11 with the double-sided teeth column 3 is characterized in that the two upper and lower gears 10, 11 engage with the spline grooves 9 of the double-sided teeth column 3 correspondingly, this is also the structure basic which allows the two upper and lower gears 10, 11 actively rotate, so as to drive the double-sided teeth column 3 to passvively translationally move, and the double-sided teeth column 3 actively translationally moves to drive the two upper and lower gears 10, 11 to passively rotate. The rotation of the two upper and lower gears 10, 11 in combination that allows the double-sided teeth column 3 being driven to passively translationally move 30 towards inside of the cylinder 1, 15 is called as "rotation of storing energy" 29, and the translational motion 31 of the double-sided teeth column 3 away from the cylinder 1, 15 that drives the two upper and lower gears 10, 11 to passively rotate corespondingly and such rotation of the two gears 10, 11 is called as "rotation of releasing energy" 32; when the
"rotation of storing energy "29 of the two upper and lower gears 10, 11 driving the double-sided teeth column 3 to translationally move 30 towards inside of the cylinder 1, 15, the piston 14, 19 is then driven to move towards the inside of the cylinder to compress the spiral spring 8, 16 and gas medium 2 arranged therein, so that the potential energy (elastic potential energy of spring and pressure potential energy of gas) in the spring cylinder 1, 15 increases; and if at this time the stopping terminal 20 of the double-sided teeth column 3 is prevented from translationally moving away from the spring cylinder 1, 15 by the blocking of the controllable stop mechanism 22 in the translational motion portion housing 27, the potential energy (elastic potential energy of spring and pressure potential energy of gas) is stored in the spring cylinder 1, 15, namley the kinetic energy of the'rotation of storing energy"
29 of the two upper and lower gears 10, 11 is converted into the potential energy (elastic potential energy of spring and pressure potential energy of gas) and stored; when the controllable stop mechanism 22 releases the stopping terminal 20 of the double-sided teeth column 3 and enables the double-sided teeth column 3 to translationally move 31 away from the spring cylinder 1, 15, the elastic force of the compressed spring 8, 16 and the pressure of the compressed gaseous medium 2 in the spring cylinder 1, 15 drive the piston 14, 19 and the double-sided teeth column 3 to translationally move away from the spring cylinder 1, 15, and then the two upper and lower gears 10, 11 are driven to rotate corespondingly, this is called as "rotation of releasing energy" 32, namely the potential energy stored in the spring cylinder 1, 15 is converted into the kinetic energy of the "rotation of releasing energy" of the two upper and lower gears 10, 11.
As shown in fig. 3, fig. 4, fig. 5 and fig. 6, the input driving system 6 is a mechanical driving system from rotating of the vehicle wheels 27 and the drive shaft 33 to causing the "rotation of storing energy" 29 of the two upper and lower gears 10, 11, the input driving system 6 is also called as an driving system for energy storage when braking; via the input driving system 6 the rotation of the vehicle wheels 27 and the drive shaft 33 cuases the "rotation of storing energy" 29 of the two upper and lower gears 10, 11, then the double-sided teeth column 3 and the pistons 14, 19 are driven to move towards the inside of the spring cylinder 1, 15 as mentioned above, to compress the spiral spring 8, 16 and the gaseous medium 2 in the spring cylinder 1,15, so that the potential energy in the spring cylinder 1,15 (elastic potential energy of spring 8 , 16 and pressure potential energy of gas 2) increases and is stored, the kinetic energy of the vehicle wheels 27 and the drive shaft 33 decreases, so the vehicle brakes and decelerates; the device 34 for VES RWB/A according to the invention takes part in the process of the vehicle energy storage when braking; the above-mentioned functions of the input driving system 6 can be suitably intergrated with the brake pedal through a computer automatic control system, so it can be controlled through pedaling the brake pedal, therefore when the vehicle needs to brake or decelerate, a distance amount of the pedaled brake pedal is converted into an electrical signal and input into a central control unit, then the computer analyzes and calculates various traveling data which are sent to the "Controller Area
Network-BUS" ("CAN bus technology") and sends corresponding commands to the input driving system 6. The output driving system 7 is a driving system which transmits the "rotation of releasing energy" 32 of the two upper and lower gears 10, 11 to a hybrid power device 35 of the vehicle, the output driving system 7 is also called as the energy release driving system; the potential energy (elastic potential energy of spring and pressure potential energy of gas) stored in the spring cylinder 1, 15 is released and converted into kinetic energy of the "rotation of releasing energy" 32 of the two upper and lower gears 10,11, which is used as a motive power to be transimtted into the hybrid power device 35 of the vehicl via the driving system 7, in order to achieve a starting or acceleraton of the vehicle co-drivn by the automobile engine 36 and the device 34 for VES RWB/A or solely driven by one of the two, and the device 34 for VES/RWB/A according to the invention takes part in the process of the vehicle energy release when actuating; the above-mentioned functions of the output driving system 7 can be suitably intergrated with the vehicle acceleration pedal through a computer automatic control system, so it can be controlled through pedaling the vehicle acceleration pedal, therefore when the vehicle needs to start or accelerate, a distance amount of the pedaled vehicle acceleration pedal is converted into an electrical signal and input into a central control unit, then the computer analyzes and calculates various traveling data which are sent to the "Controller Area Network-BUS " ("CAN bus technology") and sends corresponding commands to the output driving system 7.
As shown in fig. 1, fig. 2, fig. 5 and fig. 6, the upper limit for the amount of the energy stored and released by the device 34 for VES/RWB/A according to the inveiton is called as energy storing/releasing amount, the energy storing/releasing amount of the device 34 for VES RWB/A depends on the size of the spring cylinder 1, 15, such as the length and inner diameter of the cylinder (namely the area of the piston 14, 19), the initial pressure and the compression degree of the gas medium 2, and the elastic coefficient of the spiral spring 8, 16, these parameters are mutually matching and preferably suitable for the design requirements of the vehicle; since the vehicle in operation repeats the process of braking-starting and/or decelerating-acclerating within an energy changing range which is not very wide, such as braking from speed of 50 km/h to zero speed and then starting from zero speed to 50 km/h, decelerating from speed of 70 km/h to 50 km/h and then accelerating from 50 km/h to 70 km/h etc; a device 34 for VES/RWB/A with an energy storing/releasing amount which does not take much capacity can be competent to achieve such repeated processes of vehicle braking-starting and/or decelerating-accelerating, to achieve energy saving and emission reducing without obviously increasing the kerb weight and manufacture cost; there is generally no critical demand on the energy storing/releasing amount of the device 34 for VES/RWB/A which must be high enough to store all of the kinetic energy "lost" during the process of braking and decelerating the vehicle and to release all of the kinetic energy "increased" during the process of starting and accelerating the vehicle, because even in some situations in which the stored or released energy is higher than the energy storing/releasing amount of the device 34 for VES/RWB/A, the traditional brake technologies of the vehicle can be applied to the process of braking or decelerating the vehicle, or the motive power of the automobile engine 36 can be applied to the process of starting or accelerating the vehicle; if there is a higher demand on energy storing/releasing amount of the device 34 for VES/RWB/A, the energy storing/releasing amount of a single device 34 for VES/RWB/A can be increased by adjusting the above-mentioned corresponding parameters, or by using two or more said device 34 for VES/RWB/A. Under the control of an automobile computer central control unit and "Controller Area Network-BUS" ("CAN bus technology"), components of the devices 34 for VES/RWB/A can operate in coordination , and can operate in coordination with each of the other system in the vehicle.
Example II
The example discloses a vehicle energy storage/release when braking/actuating method for the above-mentioned device 34 for VES/RWB/A, comprising the following steps: when a vehicle is decelerating through braking, the vehicle drive shaft 33 -wheel 37 rotation causes a rotation of the two gears 10 , 11 of the device 34 for VES/RWB/A in the first rotation direction 29 namely "rotation of storing energy" 29 via the input driving system 6, the two gears 10 , 11 engagement with the spline grooves 9 on the two opposite sides of the double-sided teeth column 3 correspondingly causes the double-sided teeth column 3 driving the piston 14, 19 to move translationaliy in the first direction 30 namely toward the inside of the spring cylinder 1, 15 and to compress the gaseous medium 2 and the spiral spring 8, 16 in the spring cylinder 1, 15, so as to enable the device 34 to store energy and meanwhile to decelerate , brake the vehicle; when the vehicle is accelerating by actuating, the gas medium 2 and the spiral spring 8, 16 compressed in the spring cylinder 1, 15 extend to release the energy, so as to cause the piston 14, 19 driving the double-sided teeth column to translationaliy move in the second direction
31 namely away from the spring cylinder 1,15 opposite to the first direction, the two gears 10 , 11 rotate in a second rotating direction 32 namely "rotation of releasing energy" 32 opposite to the first rotating direction due to the engagement of the two gears 10 , 11 with the spline grooves 9 on the two opposite sides of the double-sided teeth column 3, further to transmit the rotational kinetic energy to the hybrid power device 35 via the output driving system 7, in order to provide the vehicle with power to actuate, accelerate.
The device 34 for VES/RWB/A is controlled by using the brake pedal to store energy through braking or acceleration pedal to release the energy to actuate the vehicle. In the embodiment, the said method particularly comprises the following steps:
1. When the vehicle travelling with a certain speed (for example 50 Km/h) needs to brake or decelerate to stop, the vehicle brake pedal is pedaled suitably, and a distance amount of the pedaled brake pedal is converted into an electrical signal and input into a central control unit, and a computer analyzes and calculates various traveling data which are sent to the
"Controller Area Network-BUS" ("CAN bus technology") and sends corresponding commands to the input driving system 6; and the rotation of the vehicle wheels 37 and the drive shaft 33 via the transmission of the input driving system 6 causes the "rotation of storing energy" 29 of the two upper and lower gears 10, 11, to further drive the double-sided teeth column 3 and the pistons 14,19 to move towards the inside of the spring cylinder 1, 15, in order to compress the spiral spring 8, 16 and the gaseous medium 2 in the spring cylinder 1,15, so that the potential energy (elastic potential energy of spring and pressure potential energy of gas) in the spring cylinder 1, 15 increases; since the stopping terminal 20 of the double-sided teeth column 3 is prevented, by the controllable stop mechanism 22 in the translational motion portion housing 27, from translationally moving away from the cylinder 1, 15, the potential energy (elastic potential energy of spring and pressure potential energy of gas) is stored in the spring cylinder 1, 15, and the kinetic energy of the rotating wheels 37 and the drive shaft 33 decreases, and then the vehicle brakes and decelerates to stop;
2. When the vehicle needs to start, the vehicle acceleration pedal is pedaled suitably, a distance amount of the pedaled acceleration pedal is converted into an electrical signal and input into the central control unit, the controllable stop mechanism 22 releases the stopping terminal 20 of the double-sided teeth column 3 in the translational motion portion housing 27 under a control of an automobile computer central control unit, and the elastic force of the compressed spring 8, 16 and the pressure of the compressed gaseous medium 2 in the spring cylinder 1, 15 drive the piston 14, 19 and the double-sided teeth column 3 to translationally move 31 far away from the spring cylinder 1, 15, to further drive the two upper and lower gears 10, 11, in order to achieve the "rotation of releasing energy" 32; and the computer analyzes and calculates various traveling data sent to the "Controller Area Network-BUS" ("CAN bus technology") and sends corresponding commands to the output driving system 7, and the kinetic energy of the "rotation of releasing energy" 32 of the two upper and lower gears 10, 11, as a motive power, can be transimtted into the hybrid power device 35 of the vehicl via the output driving system 7, in order to drive the vehicle to start or accelerate;
3. In the process of a further acceleration of the vehicle, according to the situation in which the stored potential energy in the spring cylinder 1, 15 is released, the vehicle can be co-driven by the automobile engine 36 and the device 34 for VES/RWB/A or solely driven by either of them via the hybrid power device 35 of the vehicl, under a control of an automobile computer central control unit;
4. When the vehicle needs to decelerate suitably, the vehicle brake pedal is pedaled slightly, and a distance amount of the pedaled brake pedal is converted into an electrical signal and input into a central control unit; and a computer analyzes and calculates various traveling data which are sent to the "Controller Area Network-BUS" ("CAN bus technology") and sends corresponding commands to the input driving system 6; and the rotation of the vehicle wheels 37 and the drive shaft 33 via the input driving system 6 causes a suitable "rotation of storing energy" 29 of the two upper and lower gears 10, 11, to further drive the double-sided teeth column 3 and the pistons 14, 19 to move towards the inside of the spring cylinder 1, 15, in order to compress the spiral spring 8, 16 and the gaseous medium 2 in the spring cylinder 1, 15; and the stopping terminal 20 of the double-sided teeth column 3 is stopped, by the controllable stop mechanism 22, to a suitable position in the translational motion portion housing 27, so that the potential energy (elastic potential energy of spring and pressure potential energy of gas) in the spring cylinder 1, 15 increases and is stored suitably, and meanwhile the kinetic energy of the rotating wheels 37 and the drive shaft 33 as well as their rotation speed decrease suitably, then the vehicle decelerates suitably;
5. In the process of a further deceleration of the vehicle, according to the situation in which the potential energy is stored, the traditional brake technologies can be applied suitably, if neccessary, under a control of an automobile computer central control unit, in order to ensure the vehicle to drastically decelerate;
6. When the vehicle needs to accelerate again during travelling, the acceleration pedal is pedaled slightly, and a distance amount of the pedaled acceleration pedal is converted into an electrical signal and input into a central control unit, and the controllable stop mechanism 22 releases the stopping terminal 20 of the double-sided teeth column 3 in the translational motion portion housing, and the elastic force of the being compressed spring 8,16 and the pressure of the compressed gas medium 2 in the spring cylinder 1, 15 drive the piston 14, 19 and the double-sided teeth column 3 to translationally move 31 away from the spring cylinder 1,15, so that the potential energy (elastic potential energy of spring and pressure potential energy of gas) stored in the spring cylinder 1, 15 can be released suitably, to drive a suitable
"rotation of releasing energy" 32 of the two upper and lower gears 10, 11; and the computer analyzes and calculates various traveling data sent to the "Controller Area Network-BUS" ("CAN bus technology") and sends corresponding commands to the output driving system 7; and the suitable "rotation of releasing energy" 32 of the two upper and lower gears 10, 11, as a motive power, can be transimtted into the hybrid power device 35 of the vehicl via the driving system 7, in order to drive the vehicle to accelerate, and the traveling speed of the vehicle increases suitably; 7. The vehicle in operation repeats the process of braking-starting and/or deceleration-accleration within an energy changing range which are within the energy storing/releasing amount range of the device 34 for VES/RWB/A, and the brake pedal and the acceleration pedal are slightly pedaled alternatively, as above mentioned method in steps 1, 2, 4 and 6, so that the device 34 for VES/RWB/A repeats the storing energy when braking and releasing the energy for actuating, to brake / start and decelerate / accelerate repeatedly and to achieve energy saving and emission reducing effectively;
8. If the "loss" of kinetic energy during the process of braking and decelerating the vehicle, or the "increase" of kinetic energy during the process of starting and accelerating the vehicle, is beyond the range of the energy storing/releasing amount of the device 34 for VES/RWB/A , namely the traveling vehicle is during the process of braking or starting, deceleration or acceleration with a higher energy load, then the vehicle brake pedal or the acceleration pedal can pedal in a certain deep degree, as above mentioned method in steps 5 or 3; the traditional brake technologies can be applied suitably during the process of braking and decelerating the vehicle under a control of an automobile computer central control unit, or the automobile engine 36 can be applied with a higher power via the hybrid power device 35 of the vehicle during the process of starting and accelerating the vehicle, namely the function superposition of the device 34 for VES/RWB/A and the traditional brake technologies, or the function superposition of the device 34 for VES/RWB/A and the motive power of the automobile engine 36 can be applied, in order to accomplish the process of braking or staring, and decelerating or accelerating the vehicle effectively; meanwhile, since the device 34 for VES RWB/A still plays an important role in these processes, so the energy saving and emission reducing can be achieved to a considerable extent;
9. If neccessary, the gas can be pressurized into the spring cylinder 1 or the rubber bladder 17 via the inflation valve 13 of the device 34 for VES/RWB/A to reach the required pressure, and the gaseous medium 2 can be nitrogen.
The above described embodiments are intended to illustrate the present invention only, but not to limit the scope thereof, it should be understood that changes and variations can be made by those skilled in the art without departing from the scope and spirit of the invention, therefore all the equivalent technical solutions shall fall within the scope of the invention defined by attached claims

Claims

Claims
1. A device (34) for vehicle energy storage/release when braking/actuating (Abbreviation: device (34) for VES/RWB/A), comprising: a spring cylinder (1) , comprising a cylinder wall (12) forming the cylinder chamber, a piston
(14) slidably fitted with the inner wall (12) of the cylinder, and a spiral spring (8) arranged between the piston (14) and the end of the spring cylinder (1); the direction of the elastic force from the spiral spring (8) is parallel to the sliding direction of the piston (14); wherein a gaseous medium (2) is filled within the cylinder chamber; a translational motion portion (38) , comprising a double-sided teeth column (3), one end of which is connected with the piston (14), provided with spline grooves (9) at both opposing sides of the double-sided teeth column (3) , and a translational motion portion housing (27) which receives the double-sided teeth column (3) ; a rotating motion portion (39) that is two gears (10 , 11) engaging with the corresponding spline grooves (9) from both the opposing sides of the double-sided teeth column (3), the two gears (10 , 11) are respectively connected with a vehicle drive shaft (33)— wheel (37) rotation brake system via an input driving system (6) and connected with a hybrid power device (35) via an output driving system (7).
2. A device according to claim 1, characterized in that, the spring cylinder (15) further comprises a rubber bladder (17) arranged in the cylinder chamber, the gaseous medium (2) is provided in the rubber bladder (17), the spiral spring (16) supported on the periphery of the rubber bladder (17).
3. A device according to claim 1 or 2, characterized in that, the outside of the cylinder wall (12) of the spring cylinder (1, 15) is provided with a inflation valve (13) which communicates with the cylinder chamber.
4. A device according to claim 1 or 2, characterized in that, the inside of the cylinder wall (12) and the inside of the translational motion portion housing (27) are respectively provided with guide bracket (25 , 24) fitted with the sliding sides of the double-sided teeth column (3) .
5. A device according to claim 1 or 2, characterized in that, the translational motion portion housing (27) is in continuation with a shield (28) provided at outside of the two gears (10 , 11).
6. A device according to claim 1 or 2, characterized in that, the other end of the double-sided teeth column (3) is provided with a stopping terminal (20) with a larger radial width and with buffering and damping device (21) at its end.
7. A device according to claim 1 or 2, characterized in that, the inner wall of the translational motion portion housing (27) is piecewise provided with a number of controllable stop mechanisms (22) fitted with the stopping terminal (20), and the controllable stop mechanisms (22) can block or release the translational motion of the stopping terminal (20) in the direction away from the spring cylinder (1 , 15).
8. A device according to claim 7, characterized in that, the translational motion portion housing (27) is constituted by a light and thin plate which is provided with air filtration gaps, the interior of the translational motion portion housing (27) is provided with reinforcing ribs (26), the controllable stop mechanisms (22) are arranged on the reinforcing rib (26).
9. A methed for using the device (34) for VES/RWB/A according any one of claim 1 to 8, characterized in that, it comprises the following steps: when a vehicle is decelerating through braking, the vehicle drive shaft (33)— wheel (37) rotation causes a rotation of the two gears (10, 11) of the device (34) for VES/RWB/A in a first rotation direction (29) namely "rotation of storing energy" (29) via the input driving system
(6), the two gears (10 , 11) engagement with the spline grooves (9) on the two opposite sides of the double-sided teeth column (3) correspondingly causes the double-sided teeth column (3) driving the piston (14 , 19) to move translationally in the first direction (30) namely toward the inside of the spring cylinder (1, 15) and to compress the gaseous medium (2) and the spiral spring (8 , 16) in the spring cylinder (1 , 15), so as to enable the device (34) for VES RWB/A to store energy, and to decelerate , brake the vehicle meanwhile; when the vehicle is accelerating through actuating, the gaseous medium (2) and the spiral spring (8 , 16) compressed in the spring cylinder (1 , 15) extend to release the energy, so as to cause the piston(14 , 19) driving the double-sided teeth column to translationally move in a second direction (31) namely away from the spring cylinder (1,15) opposite to the first direction, the two gears (10 , 11) rotate in a second rotating direction (32) namely "rotation of releasing energy" (32) opposite to the first rotating direction due to the engagement of the two gears (10 , 11) with the spline grooves (9) on the two opposite sides of the double-sided teeth column (3), further to transmit the rotational kinetic energy to the hybrid power device (35) via the output driving system (7), in order to provide the vehicle with power to actuate, accelerate.
10. A method according to claim 9, characterized in that, the device (34) for VES/RWB/A is controlled by using the brake pedal or acceleration pedal to store energy by braking or release the energy to actuate the vehicle.
PCT/SE2013/000100 2012-09-29 2013-06-17 Device for vehicle energy storage/release when braking/actuating and method thereof WO2014051480A1 (en)

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