WO2020226477A1

WO2020226477A1 - Carriage-type vehicle adapted with motor and steering systems

Info

Publication number: WO2020226477A1
Application number: PCT/MX2019/000054
Authority: WO
Inventors: Alfonso HERNÁNDEZ OLMOS
Original assignee: Hernandez Olmos Alfonso
Priority date: 2019-05-08
Filing date: 2019-05-09
Publication date: 2020-11-12
Also published as: MX2019005421A

Abstract

The invention relates to a carriage-type vehicle that maintains the features of the classic, old design of an animal-drawn carriage, with compartments, seats and a hood, and incorporates systems that allow the animal to be dispensed with, such that it moves and is steered by an operator/driver. The vehicle is characterised by an electric drive system comprising an electric drive motor, which, by means of a series of gears and linkages for multiplying the torque at the shaft of a rear integral axle, converts rotary movement into linear movement to rotate the rear wheels, the electric drive motor comprising a controller powered by an electric power source (battery), with means for controlling acceleration and regenerative or mechanical braking by means of a brake system on the rear and front wheels; and a steering system incorporated into the front axle of the vehicle.

Description

CARRIAGE TYPE VEHICLE ADAPTED WITH MOTOR SYSTEM AND

OWN ADDRESS

FIELD OF THE INVENTION

The present invention relates generally to the field of mechanics and the field of electricity in general; with regard to vehicles and their drive systems. More specifically, it refers to a carriage-type vehicle, adapted and configured to move through its own motor and steering system so as not to depend on draft with animal force.

BACKGROUND OF THE INVENTION

It is well known that carriages are vehicles drawn by animals, commonly horses and that despite the appearance of motor vehicles more than 130 years ago and their great technological advance, they have not ceased to exist. To date, they are still manufactured and used for mainly tourist purposes. However, this alternative of tourist transport has caused great controversy as it is considered as a form of animal abuse and exploitation, by subjecting horses to long periods of activity, pulling vehicles down long roads, slopes and on asphalt, causing great damage to animals; coupled with environmental pollution caused by excrement of the horses that are scattered along the avenues of the routes they travel, which implies sources of infection for the inhabitants and tourists of the areas.

The carriages have a fifth wheel system on the front axle so that the carriage can be guided by the horse.

The main challenge! of the present invention was like making a horse-drawn vehicle, a motor vehicle, that is, a vehicle with its own traction and steering, but maintaining the aesthetic appeal, the silent ride and the simplicity in its operation.

The main problems that were solved were: adapting a traction system to the carriage in a practical, low-maintenance and aesthetic way; modify the steering system either by adding a steering column to drive the fifth wheel, or by modifying the front axle with an automotive steering system; adaptation of the brakes; the incorporation of a vibration isolation system between the structural components of the vehicle to make the journey more pleasant and to! at the same time protect the structure and components from vibrations generated by rolling.

A search was carried out to determine the closest state of the art, finding the following documents:

The Mexican patent application PA / a / 2002/007532 of Paul Jared Padi et. to the. of August 5, 2002 disclosing a ride-on vehicle for children, comprising: a carriage section that includes a passenger region with a seat adjusted to size to receive a child and that includes one or more rear wheels; a horse-shaped section extending forward of the carriage section and comprising: a rear horse portion coupled to the carriage section, a horse front portion having a head portion, and a pair of front horse portions leg defining a fork assembly adapted to rotatably receive a front wheel assembly between opposite regions of the front leg portions where the front horse portion is pivotally coupled to the rear horse portion, and a front wheel assembly coupled to the fork mount and adapted to position and support the front horse portion above a ground surface, wherein the front wheel mount includes at least one front wheel coupled to an axle extending between the front leg portions, such that at least one front wheel is rotatable relative to the front leg portions; and a drive assembly having a motor assembly including at least one battery-powered motor, adapted to drive at least one of the wheels.

However, a ride-on vehicle for children that does not comprise a structural conformation, nor the same components, arrangement and function as the elements of our invention, is not autonomous and does not comprise the power, steering and suspension systems. Document EP3287339 from Wührmann Heiko of August 21, 2015 was located, which reveals a car with a chassis (20), a body (40), a drawbar (21) and at least one pair (P) on wheels (1 , 2) arranged on the chassis (20), in a track gauge (S) separated from each other. According to the invention, it is stated that each wheel (1, 2) is rotatably mounted on a respective handlebar (23) which is pivotally mounted on the chassis (20) about a respective vertical axis (H1), so that each wheel (1,2) for transporting the carriage from a direction of travel (F) facing the first position in a direction transverse to the direction of travel (F) shows that the second position is pivotal.

The invention is directed to a horse-drawn uniaxial cart with a retractable chassis, which can be accommodated in the free compartment next to a horse on a two-horse trailer. Wherein both wheel forks, including the wheels, can pivot about pivot axes arranged longitudinally below or on the floor of the cart. And it has the purpose that even a generic cart is reduced the width of the track of the wheels to be able to transport it, with this configuration, the width of the cart can be reduced for transport, so its space is so small that they can be accommodate in a compartment of a horse trailer. In addition, it is characterized by the fact that the width of the track of the wheels for transporting the cart is reduced in size. However, this document does not disclose that the carriage can be reconfigured and retrofitted to eliminate the need for the use of draft horses for travel. Faced with the need to have a carriage-type vehicle that dispensed with the use of animal traction, but that remained silent, comfortable, zero emissions and that also maintained the appearance of an old carriage to the delight of people, the present invention was developed .

OBJECTIVES OF THE INVENTION

The main objective of the invention is to make available an adapted carriage-type vehicle with its own motor and steering system, which allows eliminating the horse as the source of traction and steering of the vehicle, doing so in a simple, practical and aesthetic way.

Another objective of the invention is to provide an adapted carriage-type vehicle with its own motor and steering system that requires few components that allow its movement and movement without the consumption of fossil fuels and that is also more economical to operate, quieter, safer and more efficient. less maintenance.

Another objective of the invention is to provide an adapted carriage-type vehicle with its own motor and steering system that allows a quiet, comfortable, zero emissions vehicle that also maintains an antique carriage appearance to the delight and nostalgia of people. And all those qualities and objectives that will become apparent when making a general and detailed description of the present invention supported by the illustrated modalities.

BRIEF DESCRIPTION OF THE INVENTION

In general, the invention refers to a motorized carriage with the components of a carriage, made up of the chassis with its compartment design, seats and awning, its large wheels that incorporate systems that allow it to dispense with the animal to move and steer around a driver. Linear motion is achieved by converting the rotary motion of an electric traction motor and transmitting it through a series of gears and connections to one or more rear wheels which convert rotary motion into linear motion. This is achieved with the incorporation of an electric traction system that is mainly composed of an electric traction motor mounted on an integral rear axle: the motor generates rotary movement in both directions, this rotary movement is transferred to a series of differential type gears. via a gearbox mounted on the same rear axle, which serves to multiply the torque of the motor by a factor X. The gearbox cover serves as a structural element to fix and join the electric traction motor to the body of said integral rear axle. The built-in differential transfers rotary motion equally and unevenly through the arrows on the integral rear axle to both ends of the axle. At the ends of the integral rear axle there is an integrated rear braking system for one or both wheels, whether they are disc or drum brakes, hydraulic, whip or electromechanical.

This in order to deliberately slow down the vehicle through friction and under the deliberate action of the driver. The mass of the rear brake system includes the mounting system for the rim and the wheel, by means of one or more studs or bolts and the axle includes a bed next to the mass to fix the suspension. Said electric traction motor mounted on the integral rear axle requires a controller and / or inverter. Said component controls the starting or stopping of the motor and is powered from at least one rechargeable battery that can be recharged by using an internal or external charger. These components arranged on the chassis], it has an accelerator pedal and braking system for front brakes on the front axle and rear brakes on the integral rear axle, actuated by a brake pedal.

Said battery is a source or energy storage system, in this case of Direct Current (DC) and at a certain voltage X. It has a short current switch (MSD) at some intermediate point of the cells or modules that compose it with the intention to cut current and voltage, for safety during maintenance or storage. It can contain a pre-charging system to connect with the rest of the components and a BMS (Battery Management System) for its monitoring and communication. The battery is connected to the Inverter and to the DC / DC directly with a fuse and / or switch between these elements for safety. The function of the controller is to control the functions of the motor, it determines the RPM, torque; as well as acceleration and regenerative braking; It also converts the energy to the necessary format of the motor in this case, although not exclusive, from DC to AC three-phase. The throttle is an electronic device that converts the speed and torque desired by the driver into signals for the controller to supply power to the motor. The speed selector or forward / stop / reverse [Forward Stop Reverse (FSR)], sends the instruction to the controller that determines the direction of rotation of the motor to advance, reverse or brake. The DC-DC component is a (Stepdown) current transformer-reducer from a certain voltage X to voltage Y, in order to be able to provide power for auxiliary systems such as lights, stereo, cell phone chargers, etc. They normally work on 12v or 24v. The "On / Off Key" is a component that sends the ignition signal to the controller to know whether or not it can provide power to the motor and / or other components such as DC / DC.

The built-in “On-board” charger is a power source that recharges electrical energy to the battery bank when necessary, which may or may not include an inverter from X voltage in AC or DC to Y voltage in DC for the batteries. The system may include a connection for an external charger. The motor is the element that provides the traction and movement to the vehicle, where the rotary movement of the motor is transferred to the wheels of the vehicle by means of a series of gears and components shown in another diagram.

The connection of the integral rear axle and the front axle to the chassis can be done in different ways, in this case the connection is shown by means of the suspension, which at one end is attached to the integral rear axle and the front axle using a typical bed suspension between them and on the opposite side to the chassis or any other rigid or flexible structure that is later integrated into the chassis.

In the case where the torque exerted is too much for the point of attachment, a tensioning element can be added that holds the rear axle integral with the chassis and is a rigid structural piece whose function is to keep the rear axle integral in a specific point with respect to the XZ axes. On the one hand, it is attached to the chassis and on the other side it is attached to the integral rear axle. The only "free" movement it has is rotating in the Z axis, which allows the axle to go up and down together with the suspension, but prevents it from turning in the event that, for example, the wheel on one side falls into a pothole and the axle would like to rotate by "staying one wheel behind" (it limits the rotation on the Y axis).

The steering of the vehicle is achieved by integrating the steering system of the front axle of the carriage to a steering wheel by means of a steering column and the mechanisms necessary to enable the driver to determine the direction of the vehicle.

The steering can have various modes, for example using the old fifth wheel design, or using the rigid axle system with double axles at the ends. Both connected to a mechanism and a steering column and to the steering wheel.

In order to better understand the characteristics of the present invention, the present description is accompanied by, as an integral part thereof, the drawings with an illustrative but non-limiting character, which are described below.

BRIEF DESCRIPTION OF THE FIGURES Figure 1 shows a conventional perspective view of the adapted carriage-type vehicle with its own drive system and steering. Figure 2 shows a sectional side view of the adapted carriage-type vehicle with its own drive system and steering.

Figure 3 shows a bottom perspective view of the adapted carriage-type vehicle with its own drive and steering system.

Figure 4 illustrates an exploded view of a bottom perspective view of the adapted carriage-type vehicle with its own drive system and steering, the drive system exploding.

Figure 5 shows a top view of the integral axle of the adapted carriage-type vehicle with its own drive system and steering. Figure 6 illustrates a side view of the suspension system, integrated to the integral axle and tensioners of the carriage-type vehicle adapted with its own drive system and steering.

Figure 7 shows a top view of one modality of the steering system of the carriage-type vehicle adapted with its own drive system and steering.

Figure 8 shows a top view of another embodiment of the steering system of the carriage-type vehicle adapted with its own drive system and steering.

Figure 9 shows a simplified schematic diagram of the electric traction system for carriage-type vehicle.

For a better understanding of the invention, a detailed description of some of the modalities of the invention will be made, shown in the drawings that for illustrative but non-limiting purposes are attached to the present description.

DETAILED DESCRIPTION OF THE INVENTION

The characteristic details of the carriage-type vehicle adapted with its own drive system and steering are clearly shown in the following description and in the accompanying illustrative drawings, the same reference signs serving to indicate the same parts.

Referring to Figures 1 to 5, the carriage-type vehicle that incorporates systems that allow it to dispense with the animal to move and be directed by an operator, consists of a chassis (1), a pair of front wheels (2a), a pair of rear wheels (2b), their seats (3, 4 and 5). Linear motion is achieved by converting the rotary motion of an electric traction motor (6) and transmitting it through a series of gears and connections to the rear wheels (2b). The locomotion of the vehicle is achieved with the incorporation of an electric traction system that mainly consists of said electric traction motor (6) mounted on an integral rear axle (7) that houses rotating arrows (not shown) at whose ends are ride the rear wheels (2b); said electric traction motor (6) generates rotary movement in both directions; This rotary movement is transferred to the gears of a differential (8) via a gearbox (9) which serves to multiply the motor torque by a factor X. The gearbox cover (9) also serves to fix and join the electric traction motor (6) to the body of the integral rear axle (7).

The built-in differential (8) transfers rotary motion equally and unevenly through the arrows (not shown) on the integral rear axle (7) to both ends of the rear axle. At the ends of the integral rear axle (7) there is an integrated rear brake system (10) for one or both rear wheels (2b), whether they are disc or drum brakes, hydraulic, whip or electromechanical. This is to deliberately slow the vehicle down through friction.

The mass of the rear brake system (10) includes the mounting system for the rim and the wheel, by means of one or more studs or bolts (11) and the integral rear axle (7) includes a bed ( 12) for suspension springs (13, see figure 6) that also rest on a second bed (12a) supported on the chassis (1).

In the case where the torque exerted is too much for the joint point, a tensioning element (7a) can be added to hold the Integral rear axle (7) with the chassis (1) which is a rigid structural part whose function is to keep the integral rear axle at a specific point with respect to the XYZ axes. On the one hand, it is attached to the chassis (1) and on the other side it is attached to the integral rear axle (7). The only "free" movement it has is rotating in the Z axis, which allows the axle to go up and down together with the suspension, but prevents it from turning in the event that, for example, the wheel on one side falls into a pothole and the axis would like to rotate when "staying one wheel behind" (it limits rotation in the Y axis).

According to figure 9, said electric traction motor (6) requires a controller (14) that controls the start or stop that is powered from at least one rechargeable battery (15) that can be recharged by using a charger internal (16), or external connected through a load connector (17) and a load controller (18) that monitors and controls the process.

Said battery (15) is a source or energy storage system in this case DC. It has a short current switch (MSD) (20) at some intermediate point of the cells or modules that compose it with the intention of cutting the current and voltage. The rechargeable battery (15) is connected to an Inverter and to the DC / DC (21) directly with a fuse (21a) and / or switch between these elements for safety. The function of the controller (14) is to control the functions of the electric traction motor (6), it determines the RPM, torque, as well as acceleration and braking; it also converts the energy to the necessary format of the electric traction motor (6) in this case, although not exclusive, from DC to AC three-phase. The accelerator (19) is an electronic device that converts the speed and torque desired by the driver into signals for the controller (14) to provide energy to the electric traction motor (6). The forward / stop / reverse selector [Forward Stop Reverse (FSR)] (22) sends the instruction to the controller that determines the direction of rotation of the electric traction motor (6) to advance, reverse or brake.

The DC-DC component (21) is a current transformer-reducer from a certain voltage X to voltage Y in order to be able to provide power for auxiliary systems (23, 24) such as lights, stereo, cell phone chargers, etc. that normally work on 12 or 24v. The "On / Off Key" (25) is a component that sends the signal to the controller to know whether or not it can provide power to the motor and / or other components such as DC / DC (21).

The integrated "On-board" charger (16) is a power source that recharges energy from the rechargeable battery (15) or the battery bank when necessary. It may or may not include an X voltage inverter in AC or DC at Y voltage in DC for the batteries The electric traction motor (6) is the element that provides the traction and movement to the vehicle, where the rotary movement of the motor is transferred to the rear wheels (2b) of the vehicle by means of a series of gears and components shown in another diagram.

With reference to figure 7 the adapted carriage-type vehicle with drive system; for steering the vehicle has a fifth wheel system. In this diagram, a vertical axis turning system for the front horizontal axis (26) is shown at the ends of which the front wheels (2a) are fixed. Said steering system adapted to the carriage-type vehicle, transmits the turn in the desired direction in a steering wheel (27) through the steering column towards a rack-type gearbox (35) or a Ritman arm (28), being mounted on the chassis structure (1); these in turn transmit the force and vector by means of interconnected bars (29, 30) to a point structurally attached to the axis of rotation (not shown) of the fifth wheel (31) fixed on the front horizontal axis (26). The fifth wheel (31) and the vertical axis of rotation (not shown) allow a radius of movement of X degrees to the front horizontal axis to be able to steer the vehicle.

Figure 8 shows the steering system with two vertically rotating axles, which consist of a rigid front axle (32) articulated at its ends to steering handles (33) to which the front wheels (2nd ) and comprising an angled arm at the ends of which steering arms (34) coupled to a rack (35) or Ritman arm (35) where a steering column with a steering wheel (36) is mounted. The rigid front axle (32) is directly connected to the chassis (1) by means of the suspension.

The invention has been described sufficiently so that a person of average knowledge in the matter can reproduce and obtain the results mentioned in the present invention. However, any person skilled in the field of the art that concerns the present invention may be able to make modifications not described in the present application, however, if for the application of these modifications in a certain structure or in the manufacturing process of the same, the matter claimed in the following claims is required, said structures should be understood within the scope of the invention.

Claims

CLAIMS Having sufficiently described the invention, the content of the following claims clauses is claimed as property.

1.- An adapted carriage-type vehicle with its own drive and steering system with the components of a carriage made up of the chassis with its design of its compartment, seats and awning, its pair of front wheels and its pair of rear wheels that incorporate systems that allow you to do without the animal to move and be directed by an operator; characterized by comprising an electric traction motor that through a series of gears and connections to multiply the torque at the shaft of an integral rear axle converts the rotary movement in both directions into linear movement to make the rear wheels turn; wherein said electric traction motor comprises a drive or stop system powered from a source of electrical energy and with acceleration and braking control means by means of a rear wheel and / or regenerative braking system with the same motor; and a steering system incorporated into the front axle of the vehicle.

2. The carriage-type vehicle adapted with its own drive system and steering according to claim 1, characterized in that said series of gears and connections for multiplying the torque to the shaft of an integral rear axle consists of a differential connected to a gearbox mounted on the same rear axle which serves to multiply the motor torque by a factor X, to transfer the movement equally and unequally rotary through the arrows on the integral rear axle towards both ends of the axle

3. The carriage-type vehicle adapted with its own motor and steering system according to claim 1, characterized in that said integrated rear brake system for one or both wheels is selected from disc or drum brakes, hydraulic, whip or electromechanical.

4. The adapted carriage-type vehicle with its own drive and steering system according to claim 1, characterized in that the mass of the rear brake system includes the mounting system for the rim and the wheel, by means of one or more studs or bolts and the axle includes a suspension chamber close to the mass.

5. The carriage-type vehicle adapted with its own motor and steering system according to claim 1, characterized in that said drive or stop system of the electric motor consists of a controller that is powered from at least one rechargeable battery that can be recharged by the use of an internal and / or external charger with a charging connector and a charge controller.

6. The adapted carriage-type vehicle with its own motor and steering system according to claim 5, characterized in that said at least one battery comprises a short-current switch at an intermediate point of the cells or modules that compose it with the intention of cutting current and voltage; that it can have a pre-charge system, a BMS (Battery Managment System); and wherein said battery is directly connected to an inverter and a DC / DC only with a fuse and / or a switch between these elements for safety.

7. The carriage-type vehicle adapted with its own drive system and steering according to claim 5, characterized in that it also comprises a forward / stop / reverse selector [Forward Stop Reverse (FS R)] that sends the instruction to the controller that determines the direction of rotation of the electric traction motor to move forward, backward or brake.

8. The carriage-type vehicle adapted with its own drive and steering system according to claim 6, characterized in that said DC-DC component is a current transformer-reducer from a certain voltage X to voltage Y to provide power to the auxiliary systems like lights, stereo, cell phone chargers, etc .; An "On / Off Key" is a component that sends the signal to the controller to know whether or not it can provide power to the motor and / or other components such as DC / DC.

9. The carriage-type vehicle adapted with its own drive and steering system according to claim 1, characterized in that it also comprises a suspension system and incorporates a bed at each end of said integral rear axle for the support of suspension springs and a second bed supported on the chassis.

10. The adapted carriage-type vehicle with its own drive and steering system according to claim 1, characterized in that it also comprises a tensioning element that holds the rear axle Integral with the chassis, which is a rigid structural part whose function is to maintain the rear axle. integral at a specific point with respect to the XZ axes; on one side it is attached to the chassis and on the other side it is attached to the integral rear axle.

11. The carriage-type vehicle adapted with its own drive system and steering according to claim 1, characterized in that said steering system incorporated into the front axle of the vehicle consists of a fifth wheel system composed of a vertical axis for the front horizontal axis at whose ends the front wheels are fixed; wherein said steering system transmits the turn in the desired direction in a steering wheel through the steering column to a rack type gearbox or a Ritman arm, being mounted on the chassis structure; these in turn transmit the force and vector by means of bars interconnected to a point structurally attached to the axis of rotation of the fifth wheel fixed on the front horizontal axis; wherein said fifth wheel and the vertical axis of rotation allow a radius of movement of X degrees to the front horizontal axis to be able to give direction to the vehicle.

12. The adapted carriage-type vehicle with its own drive system and steering according to claim 1, characterized in that said steering system incorporated into the front axle of the vehicle consists of a steering system with two vertically rotating axes, which consist of a rigid front axle jointed at its ends to steering handles on which the front wheels are fixed and comprising an angled arm at the ends of which steering arms coupled to a rack or Ritman arm are mounted where a steering column is mounted with steering wheel (36).