CN115195484A - Electric automobile capable of moving forwards without power supply - Google Patents

Abstract

The invention discloses an electric automobile which can move forward without power supply, wherein an external half shaft comprises a half shaft, a part (2) connected with a shaft is added between an internal hole of the external half shaft and a power output shaft, square grooves (3) are uniformly distributed in the internal hole of the external half shaft, a cambered groove (5) with teeth (4) and a slope is arranged on the outer circumference of the part (2) connected with the shaft, and a semicircular groove (7) and a notch (8) are arranged on the outer circumference of the part; the power supply-free forward motion must simultaneously have the following conditions: all or most of the short cylinders (7-1) enter the square groove (3); the automobile moves forwards by kinetic energy, and the running speed is higher than the set lowest speed; the power output shaft (6) instantly reduces or stops transmitting electric power, so that the external half shaft (1) and the part (2) connected with the shaft realize relative rotation.

Description

Electric automobile capable of moving forwards without power supply

Technical Field

The invention relates to an electric automobile, in particular to an electric automobile which does not supply power to move forwards.

Background

The existing all-world pure electric vehicles are provided with different motor front-mounted driving, motor front-mounted rear-mounted driving and motor rear-mounted driving according to the position of a motor, a motor 11 (not shown in the attached drawings, the same is used below) controls the rotating speed of the motor by using a controller to realize the speed change of the electric vehicle, and adjusts the output of a driving motor to realize the functions of idling, forward running, reverse running, parking energy recovery, slope holding and the like of the whole vehicle, and the motor is powered by a battery pack at any time to drive wheels to move forward only when the motor rotates, and the vehicle stops moving forward once the power supply is stopped; the optimal running speed of the existing electric automobile is only 60-80KM/h but the acceleration is fast; only a reduction gearbox with a fixed gear ratio or a gearbox with a differential or a single-speed gearbox can not have a neutral position like a mechanical gear gearbox, and can also run when the neutral position is hung; the vehicle is not suitable to be driven at the speed of over 100KM/h, and is not suitable to be driven for a long distance and a long time under full load.

The application is based on that the existing electric automobile has high-speed running and short acceleration time

The automobile speed-reducing device has the advantages that the improvement is carried out on the basis, so that the power supply is instantly reduced or cut off when the automobile runs at a high speed, the automobile continues to move forwards by virtue of kinetic energy, and the automobile is instantly accelerated for several seconds when the speed is reduced and is continuously repeated; or the motor is converted into the generator while the power supply is cut off, the kinetic energy generated when the electric automobile does not supply power for running is fully utilized to generate electricity, and the battery pack is charged reversely, so that the running distance is increased; the driving system of the existing electric automobile is improved to achieve the purpose of forward running without power supply, namely, a part connected with a hub in front wheel driving or rear wheel driving is improved; the front drive is that the external half shaft is connected with wheel hub, the rear drive is that the half shaft is connected with wheel hub directly or indirectly, the improved method is to increase a part 2 connected with shaft between external half shaft and cardan shaft; for rear wheel driving, the half shaft is divided into three parts, one part is connected with a wheel hub, the other part is a power output shaft 6 which is connected with a motor or a differential mechanism to transmit power, and a part 2 connected with a shaft is arranged between the two parts; in the following text, the parts referred to collectively as the outer half wheel and the wheel hub comprise the half shaft 1, which may be referred to simply as the outer half shaft (the same applies hereinafter), the part 2 referred to as the shaft connection in the inner bore of the outer half shaft, and the power take-off shaft 6 comprises a cardan shaft or a shaft with split half shafts, which have no wheels for the same front drive or rear drive function.

Disclosure of Invention

The invention aims to instantly tighten the rotating speed of a motor to an idle speed or stop power supply when an electric automobile moves forwards; or the driving function of the motor disappears, and the kinetic energy is instantly converted into the electric generator to reversely charge the battery pack of the automobile by utilizing the kinetic energy of the automobile in the forward moving process.

The technical measure of the invention is to improve a front wheel or a rear wheel for driving the automobile to move forward, a part 2 connected with a shaft is added between an external half shaft 1 and a power output shaft 6, 1 or more square grooves 3 uniformly distributed according to equal parts are arranged in an inner hole of the external half shaft 1, and an arc-shaped groove 5 which is provided with teeth 4 and slopes and is in multiple of the square grooves is also arranged in the inner hole; the inner hole of the part 2 connected with the shaft is provided with a key to be connected with a power output shaft 6, the outer circumference of the part is provided with a semi-circular groove 7 corresponding to a square groove 3 in the inner hole of the outer half shaft, and a spring 3-1 is arranged in the square groove 3 to always prevent a short cylinder 7-1 from entering the square groove; the part 2 connected with the shaft is also provided with 1 or more uniformly distributed notches 8, short cylinders 8-1 are arranged in the notches 8, and springs 8-2 are arranged in the notches 8 to always push the short cylinders 8-1 outwards into the arc-shaped grooves 5 with teeth 4 and slopes; the bearing 9 supports the outer half shaft comprising the half shaft and the part 2 connected with the shaft, and the mutual matching ensures the flexibility in relative rotation without generating resistance; after the technical measures are executed, the conventional electric automobile can realize the forward movement without power supply, the lowest speed of forward movement without power supply is set for products by automobile manufacturers, and the forward movement is assumed to be 40KM/h, namely the forward movement speed is lower than 40KM and called low-speed driving, and the forward movement speed is higher than 40KM and called high-speed driving (the same applies below); when the rotating speed of the wheels exceeds 40KM, the short cylinders 7-1 overcome the resistance of the springs 3-1 and completely or mostly enter the square grooves 3 under the action of centrifugal force, and at the moment, two random control modes are provided:

1. no matter the running speed is, the electric motor 11 still transmits electric power to drive, and a power output shaft 6 drives a short cylinder 8-1 on a part 2 connected with a shaft to push teeth 4 on an external half shaft to move the wheels forwards;

2. if the driving speed is higher than 40KM, the power supply is suddenly reduced to idle speed, the automobile still continues to move forwards by the kinetic energy of the automobile, and when the speed is reduced, the speed is accelerated for a few seconds and is repeated continuously, so that the aim of moving the automobile forwards by no power supply or less power supply is fulfilled; the condition that the power supply is not supplied to the front line must be the following condition at the same time: all or most of the short cylinders 7-1 enter the square grooves 3; the automobile is running and the speed is higher than the set lowest speed; the power output shaft 6 instantaneously reduces or stops transmitting electric power; the external half shaft 1 realizes relative rotation to the part 2 connected with the shaft; in order to fully use the kinetic energy when the vehicle runs without power supply, a capacitor and a related circuit can be arranged outside the motor 11, so that the motor is changed into a generator, and when the vehicle runs by the kinetic energy of the vehicle after high-speed running is converted, the circuit connection mode is changed by the controller, and the motor stops supplying power instantly and is converted into the generator to charge the battery pack.

The external half shaft comprises a structure formed by improving the half shaft, and is suitable for hybrid vehicles, plug-in vehicles, range-extended vehicles and power-driven vehicles, and in the novel structure, the external half shaft 1 and the part 2 connected with the shaft can freely rotate relatively to realize moving forward by kinetic energy in high-speed running.

The invention has the advantages that the power supply of the electric automobile is reduced or stopped when the electric automobile moves ahead at high speed, the running distance can be increased by 20.4 percent, and if the running kinetic energy is utilized to charge the battery pack, the running distance can be increased by about 30 percent; meanwhile, the speed of the electric automobile can be increased to more than 100KM/h on a highway, and the electric automobile can run for a long distance without increasing power loss.

Description of the drawings:

fig. 1 is a schematic structural diagram of a front-wheel steering drive axle of a motor.

Fig. 2 is a schematic rear wheel drive with the motor forward or rearward.

Fig. 3 is a front view of the outer half shaft, which is a view of electrically driven low speed driving.

Fig. 4 is a diagram of electric-drive high-speed running.

FIG. 5 is a schematic view showing the relative positions of the outer half shaft and the shaft-connected member at the moment when the vehicle is driven by kinetic energy with the supply of electric power cut off.

The specific implementation mode is as follows:

the following detailed description is made in conjunction with the accompanying drawings, in which:

the external half shaft comprises a half shaft 1 (called as an external half shaft for short), a part 2 connected with a shaft, a square groove 3, a spring 3-1, a tooth 4, an arc-shaped groove 5 with a slope, a power output shaft 6, a semicircular groove 7, a short cylinder 7-1, a notch 8, a short cylinder 8-1, a spring 8-2, a bearing 9, a universal joint 10, a motor 11 (not shown in the drawing), a hub 12 and a cover 13;

FIG. 1 isbase:Sub>A schematic view ofbase:Sub>A front-motor steering transaxle, and FIG. 2 isbase:Sub>A schematic view ofbase:Sub>A rear-motor drive withbase:Sub>A front or rear motor, both shown in cross-section A-A in FIG. 3; the motor 11 is marked in the figure, but generates electricity to rotate the power output shaft 6, and drives the part 2 connected with the shaft to drive the outer half shaft 1 to rotate, the figure 1 shows a disc brake, the household passenger car is more, the figure 2 shows a drum brake, and the motor is suitable for freight vehicles with larger carrying capacity; the power output shaft 6 and the part 2 connected with the shaft can be combined in a single key or a spline.

Fig. 3, fig. 4, fig. 5, fig. 1, fig. 2 with the cover 13 removed, fig. 3 is a schematic view of low speed driving, the motion transmission sequence of which is as follows, the electric power sent by the power output shaft 6 drives the part 2 connected with the shaft, the short cylinder 8-1 on which is connected with the part 2 connected with the shaft, and the external half shaft 1, the dead lock, the power is transmitted to the external half shaft to rotate through the short cylinder 8-1 of the tooth 4; the short cylinder 7-1 is limited in the semicircular groove 7 by the spring 3-1 to limit the relative rotation of the external half shaft 1 and the part 2 connected with the shaft; all low-speed running, braking, ascending, descending and backing are in the state shown in the figure 3, the safety performance is completely the same as that of the existing automobile, in the figure 3, the forward directions of the part 2 connected with the shaft and the arrow on the external half shaft 1 are the same, and the power output shaft 6 is used for transmitting electric power; FIG. 4 shows that the vehicle is driven by electricity, the running speed is higher than the set lowest speed of the vehicle without electricity, at the moment, the short cylinder 7-1 completely enters the groove 3 under the action of centrifugal force, the transmitted electricity is still blocked by the part 2 connected with the shaft and the outer half shaft 1, and the short cylinder 8-1 is driven by the through tooth 4 to drive the outer half shaft to rotate, which is completely the same as the existing vehicle; FIG. 5 is a schematic view showing a moment when the vehicle is driven by kinetic energy with the power supply cut off, the power supply is cut off suddenly when the vehicle reaches the speed of FIG. 4, in the figure, the part 2 connected with the shaft is not marked with an arrow, which shows that no power supply exists, the vehicle moves forward continuously by the kinetic energy of the vehicle, the short cylinder 7-1 jumps over the semicircular groove 7, and the short cylinder 8-1 is pressed into the gap 8 by the slope of the arc-shaped groove 5 with the slope; when the speed of the vehicle running by kinetic energy is reduced, the vehicle is accelerated again and is repeated continuously, so that the purpose of moving forwards without power supply is achieved.

In FIG. 5, all or most of the short cylinders 7-1 enter the square groove 3, the power supply is stopped, and the whole operation process of the automobile running by the existing kinetic energy is very simple; the 'random' means that the vehicle can be freely converted into the vehicle running by kinetic energy at any time from more than 40km to the highest speed; after the function is available, people think that all the motors can be changed into generators theoretically to do work by utilizing kinetic energy, when the vehicles move forwards by utilizing the kinetic energy, the driving motors of the vehicles do not work, and if a capacitor is added outside the vehicles and the circuit is changed at the same time, the kinetic energy can be converted into the energy to charge the battery pack of the vehicles.

The short cylinder adopts a short cylinder bearing produced in a standardized way, so that the bearing capacity is high, and the precision is high. The external half-shaft comprises holes for connecting the half-shaft with the hub, not shown in fig. 3 to 5, and the products are different and are correspondingly coordinated to meet the requirement of the existing hole number.

The patent application is applicable to all new energy automobiles, including hybrid power, plug-in or range-extending automobiles and any power-driven automobiles, and the patent protection is provided only for improving the outer half shaft including the half shaft according to the claims.

Claims (5)

1. The electric automobile that can move ahead of power supply is that external half axle includes semi-axis (1) (external half axle is for short down the same) improves, increases a part (2) with hub connection, its characterized in that: the inner hole of the outer half shaft (1) is internally provided with 1 or more square grooves (3) which are uniformly distributed according to equal parts, and also provided with arc-shaped grooves (5) which are provided with teeth (4) which are multiple of the square grooves and slopes; the inner hole of the part (2) connected with the shaft is provided with a key to be connected with the power output shaft (6), the outer circumference of the part is provided with a semi-circular groove (7) corresponding to a square groove (3) in the inner hole of the outer half shaft, a short cylinder (7-1) is arranged in the semi-circular groove (7), and a spring (3-1) arranged in the square groove (3) always prevents the short cylinder (7-1) from entering the square groove; the part (2) connected with the shaft is also provided with 1 or more uniformly distributed notches (8), and a spring (8-2) is arranged in each notch (8) and always pushes the short cylinder (8-1) outwards into the arc-shaped groove (5) with the teeth (4) and the slope.

2. The electric vehicle which can move forwards without power supply according to claim 1, characterized in that: the power supply-free forward motion must simultaneously have the following conditions: all or most of the short cylinders (7-1) enter the square groove (3); the automobile is running and the running speed is greater than the set lowest speed; the power output shaft (6) instantly reduces or stops transmitting electric power; the external half shaft (1) realizes relative rotation to a part (2) connected with the shaft.

3. The electric vehicle which can move forwards without power supply according to claim 1, characterized in that: a capacitor and a related circuit are arranged outside the motor (11) to change the motor into a generator, when the automobile runs at a high speed, the motor is converted into the automobile running by the kinetic energy of the automobile, the circuit connection mode is changed through a controller, the power supply of the motor is stopped instantly, and the motor is converted into the generator to charge the battery pack.

4. The electric vehicle without electric energy supply for forward travel according to claim 1, characterized in that: the bearing (9) supports the outer half shaft and comprises a half shaft (1) and a part (2) connected with the shaft, which are matched with each other to ensure the relative rotation flexibility.

5. The electric vehicle without electric energy supply for forward travel according to claim 1, characterized in that: the external half shaft comprises a structure formed by improving the half shaft, and is suitable for hybrid vehicles, plug-in vehicles, range-extended vehicles and power-driven vehicles, and in the novel structure, the external half shaft (1) and the part (2) connected with the shaft can freely rotate relatively to realize the forward movement by kinetic energy during high-speed running.

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