FR2879546A1 - Energy recovery device for use during braking moment of e.g. bicycle, has two pressure reservoirs retaining hydraulic or pneumatic liquid at braking moment and redistributing liquid during starting or acceleration moment - Google Patents

Energy recovery device for use during braking moment of e.g. bicycle, has two pressure reservoirs retaining hydraulic or pneumatic liquid at braking moment and redistributing liquid during starting or acceleration moment Download PDF

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FR2879546A1
FR2879546A1 FR0413447A FR0413447A FR2879546A1 FR 2879546 A1 FR2879546 A1 FR 2879546A1 FR 0413447 A FR0413447 A FR 0413447A FR 0413447 A FR0413447 A FR 0413447A FR 2879546 A1 FR2879546 A1 FR 2879546A1
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moment
hydraulic
liquid
braking moment
pneumatic
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FR0413447A
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French (fr)
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FR2879546B3 (en
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La Mettrie Aymar De
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Classifications

    • 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
    • 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
    • B60K6/12—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
    • B62L1/00—Brakes; Arrangements thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/10—Rider propulsion of wheeled vehicles involving devices which enable the mechanical storing and releasing of energy occasionally, e.g. arrangement of flywheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M19/00—Transmissions characterised by use of non-mechanical gearing, e.g. fluid gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M23/00—Transmissions characterised by use of other elements; Other transmissions
    • B62M23/02—Transmissions characterised by use of other elements; Other transmissions characterised by the use of two or more dissimilar sources of power, e.g. transmissions for hybrid motorcycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M7/00—Motorcycles characterised by position of motor or engine
    • B62M2007/005—Motorcycles characterised by position of motor or engine the cycle being equipped with a pneumatic motor
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Regulating Braking Force (AREA)

Abstract

The device has a hydraulic or pneumatic main circuit connected between a pedal/engine and wheels of a bicycle by pump motors (3, 4). Two pressure reservoirs (1, 2) contain hydraulic or pneumatic liquid, when they are connected to the main circuit by three hydraulic valves (5-7) and two anti-reverse valves (8, 9). The reservoirs retain the liquid at braking moment and redistribute the liquid during starting or acceleration moment.

Description

La présente invention concerne un dispositif hydraulique ou pneumatique deThe present invention relates to a hydraulic or pneumatic device of

récupération d'énergie permettant d'assister les variations de vitesses d'un véhicule, en particulier en phase de démarrage ou d'accélération.  energy recovery for assisting the speed variations of a vehicle, particularly during the start-up or acceleration phase.

L'utilisation de deux roues en ville implique des freinages et des démarrages fréquents. Les deux roues non-motorisés mus par l'énergie humaine n'appliquent pas les consignes d'arrêt de la signalisation routière car ils sont une perte d'énergie.  The use of two wheels in the city involves frequent braking and starting. The two non-motorized wheels driven by human energy do not apply the stopping instructions of road signs because they are a loss of energy.

La population des deux roues motorisés est en augmentation dans nos villes, leurs courses brèves et rapides incluent de nombreux freinages, arrêts combinés avec autant de redémarrages ou accélérations. Ces allures ou vitesse et accélération sont directement liées à la consommation, créent des pollutions atmosphériques et sonores importantes alors que les mairies des grandes villes ls françaises sont sensibilisées et tentent de remédier à ces deux nuisances.  The population of motorized two-wheelers is increasing in our cities, their short and fast races include many braking, stops combined with as many restarts or accelerations. These gaits or speed and acceleration are directly related to consumption, create significant atmospheric pollution and noise while the town halls of large French cities are sensitized and try to remedy these two nuisances.

Actuellement aucun moyen de récupération ou de gestion de l'énergie dépensée n'existe pour:les deux roues. Des tentatives de gestion de la consommation au démarrage ont vues le jour dans l'automobile mais ne répondent pas au souci de récupération de l'énergie ou alors sont complexes et volumineux.  Currently no means of recovery or management of the energy expended exists for: both wheels. Attempts to manage start-up consumption have emerged in the automotive industry but do not respond to the need for energy recovery or are complex and bulky.

Aucun système de récupération de l'énergie du freinage à des fins de redémarrage n'est actuellement utilisé en France.  No energy recovery braking system for restarting is currently used in France.

Le dispositif selon l'invention permet de remédier à ces inconvénients et de proposer un dispositif hydraulique ou pneumatique permettant de récupérer l'énergie du véhicule, en particulier au moment du freinage. Cette énergie pouvant être réutilisée à tout moment en particulier au démarrage.  The device according to the invention overcomes these disadvantages and to provide a hydraulic or pneumatic device for recovering the energy of the vehicle, particularly at the time of braking. This energy can be reused at any time especially at startup.

Il comporte en effet un première caractéristique constituée d'un circuit hydraulique ou pneumatique principal permettant l'entraînement entre la source d'énergie; pédalier ou moteur, et le moyeu de la roue. Source d'énergie et moyeu de la roue étant touts deux munis d'un moteur pompe Ce circuit est complété par un ensemble de 2 vasques de rétention hydraulique ou pneumatique.  It comprises in fact a first characteristic consisting of a main hydraulic or pneumatic circuit for driving between the energy source; crankset or engine, and the hub of the wheel. Energy source and hub of the wheel being both equipped with a pump motor This circuit is completed by a set of 2 basins of hydraulic or pneumatic retention.

Les vasques permettent de conserver et redistribuer un volume de liquide hydraulique ou pneumatique au cours des différents configuration d'utilisation, ces réservoirs de pression, dont le dispositif de pression est modifiable mécaniquement permettent de stocker l'élément hydraulique ou pneumatique fournie par le moteur pompe lié à la roue, au moment freinage et de le redistribuer dans ce même moteur pompe au moment du redémarrage.  The basins make it possible to conserve and redistribute a volume of hydraulic or pneumatic liquid during the various configurations of use, these pressure tanks, the pressure device of which can be modified mechanically, make it possible to store the hydraulic or pneumatic element provided by the pump motor. linked to the wheel, at the braking moment and redistribute it in this same pump motor at the time of restarting.

s Selon les modes particuliers de réalisation: Le dispositif peut être hydraulique ou pneumatique.  According to the particular embodiments: The device can be hydraulic or pneumatic.

Les vasques et conduites hydrauliques ou pneumatiques peuvent être intégrées à la structure du véhicule Les moteurs pompes peuvent être munis d'un dispositif interne 10 ou externe de modification de la cylindrée Les commandes de pression des réservoirs de pression peuvent être reliés aux commandes de freins du véhicule.  Hydraulic or pneumatic vessels and lines may be integrated into the vehicle structure. The pump motors may be provided with an internal or external displacement modification device. The pressure controls of the pressure tanks may be connected to the brake controls of the engine. vehicle.

Les niveaux de déclenchement des valves anti-retour peuvent être liés soit à un dispositif de commande indépendant, soit à un élément de commande lié à un niveau de pression dans les réservoirs par exemple.  The trigger levels of the non-return valves can be linked either to an independent control device or to a control element related to a pressure level in the tanks for example.

Un dispositif annexe de gestion de vitesse ou de l'énergie peut permettre la libération d'énergie par le dispositif afin de gérer la vitesse du véhicule en cours de déplacement.  An ancillary speed or energy management device may allow the release of energy by the device to manage the speed of the vehicle being moved.

La vasque de pression peut être alimentée par la récupération de l'énergie du véhicule, de tout autre dispositif du véhicule ou de tout autre dispositif annexe.  The pressure vessel may be powered by the recovery of the energy of the vehicle, any other device of the vehicle or any other ancillary device.

Les dessins annexés illustrent l'invention appliquée au cas de la 25 bicyclette.  The accompanying drawings illustrate the invention applied to the bicycle case.

La figure 1 représente le dispositif décrit de manière synthétique.  Figure 1 shows the device described in a synthetic manner.

Le dispositif comporte deux réservoirs de pression (1) et (2) caractérisés en ce que la pression est variable, commandée par un dispositif non représenté sur la figure 1. Le dispositif comporte aussi deux moteur pompes hydrauliques (3) et (4) entraînés par deux axes. Le dispositif comporte aussi 3 distributeurs (5), (6) et (7) ainsi que deux valves anti-retour (8) et (9).  The device comprises two pressure tanks (1) and (2) characterized in that the pressure is variable, controlled by a device not shown in Figure 1. The device also comprises two driven hydraulic pumps (3) and (4) driven by two axes. The device also comprises 3 distributors (5), (6) and (7) and two non-return valves (8) and (9).

Le premier distributeur (5) met en relation le deuxiéme réservoir (2) avec le troisiéme distributeur (7) et le circuit hydraulique principal reliant les deux moteurs pompes (3) et (4). Il peut prendre trois positions (j,jj, jjj). La position j obstruant les conduites, la position jj mettant en relation l'entrée du deuxième moteur pompe(4) et le deuxième réservoir (2), la position jjj mettant en relation le deuxième réservoir et le troisième distributeur (7).  The first distributor (5) connects the second tank (2) with the third distributor (7) and the main hydraulic circuit connecting the two pump motors (3) and (4). It can take three positions (j, dd, dd). The position obstructing the pipes, the position jj connecting the input of the second pump motor (4) and the second tank (2), the position jjj connecting the second tank and the third distributor (7).

Le deuxième distributeur (6) met en relation le premier réservoir (1) avec le troisième distributeur (7) et le circuit hydraulique principal. Il peut prendre 3 positions (i, ii, et iii). La position i bloque les différentes conduites, la position ii ouvre la conduite entre le réservoir (1) et le circuit hydraulique, la position iii ouvre uniquement la conduite entre le réservoir (1) et le distributeur (7) .  The second distributor (6) connects the first reservoir (1) with the third distributor (7) and the main hydraulic circuit. It can take 3 positions (i, ii, and iii). The position i blocks the different pipes, the position ii opens the pipe between the tank (1) and the hydraulic circuit, the position iii only opens the pipe between the tank (1) and the distributor (7).

Le troisième distributeur (7) est relié à la sortie du deuxième moteur pompe (4) et donne accès au deuxième distributeur (5) et au premier moteur pompe (3). Il peut prendre trois positions (k, kk, kkk). La position k mettant en relation la sortie du deuxième moteur pompe (4) et les conduites menant au deuxième distributeur (5) et l'entrée du premier moteur pompe (3). La position kkk bloque les différentes conduites.  The third distributor (7) is connected to the output of the second pump motor (4) and gives access to the second distributor (5) and the first pump motor (3). It can take three positions (k, kk, kkk). The position k connecting the output of the second pump motor (4) and the pipes leading to the second distributor (5) and the inlet of the first pump motor (3). The kkk position blocks the different pipes.

Une valve anti-retour (8) assure le principe de roue libre pour le moteur pompe (3) dans certaines configurations.  A non-return valve (8) provides the freewheeling principle for the pump motor (3) in certain configurations.

Une autre valve anti-retour (9) située entre le deuxième moteur pompe (4) et le troisième distributeur (7) permet de bloquer le retour de fluide dans le premier moteur pompe (4) en cas de surpression issue du deuxième réservoir de pression (2) quand le troisième distributeur (7) est en position k .  Another non-return valve (9) located between the second pump motor (4) and the third distributor (7) makes it possible to block the return of fluid into the first pump motor (4) in the event of an overpressure from the second pressure tank (2) when the third distributor (7) is in position k.

L'intégration du dispositif à un cadre de bicyclette (12) est figurée par un dessin représentant une roue (11) et un pédalier (10). L'essieu de la roue (11) étant en relation avec l'axe du moteur pompe (3) et le pédalier (10) étant en relation avec l'axe du moteur pompe (4). L'ensemble des réservoirs, conduites et valves sont intégrés dans le cadre de bicyclette (12) ou apparents.  The integration of the device with a bicycle frame (12) is represented by a drawing representing a wheel (11) and a pedal (10). The axle of the wheel (11) being in relation with the axis of the pump motor (3) and the pedal (10) being in relation with the axis of the pump motor (4). All tanks, pipes and valves are integrated into the bicycle frame (12) or visible.

La figure 2 représente le dispositif en position de pédalage, la position des distributeurs est la suivante: Distributeur (5) : position ii Distributeur (6) : position jj Distributeur (7) : position kk La force d'entraînement fournie par l'intermédiaire du moteur pompe (4) passe dans le moteur pompe (3) qui entraîne un essieu. En cas d'arrêt du pédalage, la valve anti-retour(8) assure le phénomène de roue libre pour le moteur pompe (3), en parallèle et 35 fonction des caractéristiques techniques de la valve anti-retour(8), le réservoir de pression (1) peut emmagasiner du fluide sous pression issu d'un déplacement en roue libre qui entraine le moteur pompe (3) sans pédalage sur le moteur pompe (4).  FIG. 2 shows the device in the pedaling position, the position of the distributors is as follows: Distributor (5): position ii Distributor (6): position jj Dispenser (7): position kk The driving force supplied via the pump motor (4) passes into the pump motor (3) which drives an axle. In case of stopping of the pedaling, the non-return valve (8) ensures the freewheeling phenomenon for the pump motor (3), in parallel and according to the technical characteristics of the non-return valve (8), the reservoir pressure device (1) can store pressurized fluid from a freewheel movement which drives the pump motor (3) without pedaling on the pump motor (4).

La figure 3 représente le dispositif en position de freinage, la position des distributeurs est la suivante: Distributeur (5) : position ii Distributeur (6) : position jjj Distributeur (7) : position k La force d'entraînement fournie par l'essieu au moteur pompe (3) est redirigée sur le réservoir de pression (1) qui emmagasine du fluide hydraulique. Alors que le fluide contenu dans le réservoir (2) se libére dans le circuit principal par l'intermédiaire du distributeur (7).  FIG. 3 shows the device in the braking position, the position of the distributors is as follows: Distributor (5): position ii Distributor (6): position ddd Distributor (7): position k The driving force supplied by the axle the pump motor (3) is redirected to the pressure tank (1) which stores hydraulic fluid. While the fluid contained in the reservoir (2) is released in the main circuit via the distributor (7).

La variation de puissance de freinage et de longueur de freinage se faisant par un dispositif relié à la commande de frein de la byciclette. Cette commande fait en même temps varier la position des distributeurs et la pression de déclenchement de la valve anti- retour (8) qui assure la roue libre. Après un certain temps d'action sur la commande de frein, le réservoir (1) étant plein et la valve antiretour (8) bloquée, l'essieu entraîné par le moteur pompe (3) s'arréte. La gestion de la force de freinage se faisant par la gestion de la valve anti-retour (8).  The variation of braking power and braking length is done by a device connected to the brake control of the bycicle. This command at the same time varies the position of the distributors and the triggering pressure of the non-return valve (8) which ensures freewheeling. After a certain time of action on the brake control, the tank (1) being full and the check valve (8) blocked, the axle driven by the pump motor (3) stops. The management of the braking force is done by the management of the non-return valve (8).

La figure 4 représente le dispositif en position d'assistance au démarrage, la position des distributeurs est la suivante: Distributeur (5) : position iii Distributeur (6) : position jj Distributeur (7) : position k Le liquide hydraulique emmagasiné dans le réservoir (1) lors de freinages précédent est redirig;é sur le distributeur (7) par l'intermédiaire du distributeur (6). Les valves anti-retours (8) et (9) obligent le liquide hydraulique a passer par le moteur pompe (3) et ensuite d'aller dans le réservoir (2). Lors que l'utilisateur pédale, il entraîne le moteur pompe 4 qui fournit une force d'entrainement qui est délivré au circuit hydraulique uniquement quand elle est supérieure à la pression délivrée par le réservoir (1) 30 35 La figure 5 représente le dispositif en position anti-vol, la position des distributeurs est la suivante: Distributeur (5) : position i Distributeur (6) : position j Distributeur (7) : position kkk Les différentes conduites du circuit hydraulique sont bloquées, si la valve anti-retour est elle aussi bloquée les deux moteurs pompes reliés au pédalier et à l'essieu ne peuvent tourner.  FIG. 4 represents the device in assisted starting position, the position of the distributors is as follows: Distributor (5): position iii Distributor (6): position jj Dispenser (7): position k Hydraulic liquid stored in the reservoir (1) during previous braking is redirig é on the distributor (7) via the distributor (6). The anti-return valves (8) and (9) force the hydraulic fluid to pass through the pump motor (3) and then to go into the tank (2). When the user is pedaling, he drives the pump motor 4 which supplies a driving force which is delivered to the hydraulic circuit only when it is greater than the pressure delivered by the reservoir (1). FIG. anti-theft position, the position of the valves is as follows: Distributor (5): position i Dispenser (6): position j Distributor (7): position kkk The different hydraulic circuit lines are blocked, if the non-return valve is it also blocked the two pump motors connected to the pedal and the axle can not turn.

Claims (3)

REVENDICATIONS 1) Dispositif hydraulique ou pneumatique de récupération de l'énergie adapté aux deux roues, caractérisé en ce qu'il comporte trois distributeurs, deux valves anti-retours et un ensemble de vasques ou réservoir, dont au moins 1 permettant de stocker l'énergie en vue de la rendre accessible à tout moment et en particulier au moment du démarrage.  1) Hydraulic or pneumatic energy recovery device adapted to both wheels, characterized in that it comprises three distributors, two non-return valves and a set of basins or tank, at least one for storing energy to make it accessible at all times and especially at start-up. 2) Dispositif selon la revendication précédente caractérisé en ce que des valves ou distributeurs sont commandés automatiquement ou manuellement.  2) Device according to the preceding claim characterized in that valves or distributors are controlled automatically or manually. l0  l0 3) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que l'utilisation des distributeurs hydraulique dans une certaine configuration permet d'assurer un antivol du deux roue en bloquant et le pédalier et l'essieu de la roue entraînée par le dispositif.3) Device according to any one of the preceding claims characterized in that the use of hydraulic distributors in a certain configuration ensures a lock of the two wheel by blocking and the pedal and the axle of the wheel driven by the device .
FR0413447A 2004-12-17 2004-12-17 HYDRAULIC OR PNEUMATIC ENERGY RECOVERY DEVICE FOR SUBSEQUENT USE Expired - Fee Related FR2879546B3 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012031970A1 (en) * 2010-09-06 2012-03-15 Eisenmann Siegfried A Hydrostatic drive for a motor vehicle
FR2989058A1 (en) * 2012-04-05 2013-10-11 Antoine Sylvain Theophile Marcel Chretien Pedal assistance device for vehicle i.e. bicycle, has pressurized fluid tank comprising motor pump, which is rotatably connected to pedals in assistance mode, so that assistance of pedals is related to regulation of pedals and bicycle
CN104648602A (en) * 2014-08-26 2015-05-27 齐鲁工业大学 Novel gas-electric hybrid power bicycle
CN104648601A (en) * 2015-02-02 2015-05-27 西京学院 Pneumatic power assisting device of bicycle
CN104648603A (en) * 2014-08-26 2015-05-27 齐鲁工业大学 Multifunctional pneumoelectric hybrid power bicycle
ES2597152A1 (en) * 2015-07-14 2017-01-16 Universidad De Burgos Pneumatic regenerative brake device (Machine-translation by Google Translate, not legally binding)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012031970A1 (en) * 2010-09-06 2012-03-15 Eisenmann Siegfried A Hydrostatic drive for a motor vehicle
FR2989058A1 (en) * 2012-04-05 2013-10-11 Antoine Sylvain Theophile Marcel Chretien Pedal assistance device for vehicle i.e. bicycle, has pressurized fluid tank comprising motor pump, which is rotatably connected to pedals in assistance mode, so that assistance of pedals is related to regulation of pedals and bicycle
CN104648602A (en) * 2014-08-26 2015-05-27 齐鲁工业大学 Novel gas-electric hybrid power bicycle
CN104648603A (en) * 2014-08-26 2015-05-27 齐鲁工业大学 Multifunctional pneumoelectric hybrid power bicycle
CN104648601A (en) * 2015-02-02 2015-05-27 西京学院 Pneumatic power assisting device of bicycle
ES2597152A1 (en) * 2015-07-14 2017-01-16 Universidad De Burgos Pneumatic regenerative brake device (Machine-translation by Google Translate, not legally binding)
WO2017009513A1 (en) * 2015-07-14 2017-01-19 Universidad De Burgos Pneumatic regenerative braking device

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