JP3177757B2 - Inertial running equipment for automobiles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention can be applied to automobiles and electric vehicles using an internal combustion engine.

BACKGROUND OF THE INVENTION There are prior art techniques for the same purpose. For example, Japanese Patent Publication No. 52-101529 and Japanese Patent Publication No. 55-2252.
There is No. 3. In these techniques, a friction clutch mechanism utilizing sliding friction is employed, so that the service life is short and is not practical. Therefore, there is no practical example. There are driving means to achieve the same purpose. For example, when driving a train, the power supply to the motor is stopped on a down slope, and when the speed is increased by acceleration, the power supply is stopped and the vehicle is running with inertia. In the case of a car, inertial running is also performed. For example, it is a means for returning the accelerator petal and traveling on a long downhill slope with the change lever in the neutral position. In this case, the position of the neutral position is frequently changed, so that the wear of the friction clutch causes an accident, and is prohibited by law.

[0002]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus for reducing the amount of fuel or electric power consumed during driving of an automobile to 1/2 or less. For this reason, it is necessary to safely and reliably switch between traveling at the neutral position and traveling with the engine brake. There are the following problems when solving the above problems. It is also an issue to solve such a problem. First
In addition, the time to reach the destination during normal driving must not be extended. Second, since it is not permissible for the driving sensation to be accompanied by an abnormal feeling, it is necessary to be able to drive the vehicle in a manner similar to the conventional driving sensation. Third, weight reduction of automobiles is currently being performed for the same purpose, but this cannot be adopted in the event of a collision because it causes damage to the human body.

[0003]

SUMMARY OF THE INVENTION In an apparatus for performing inertial running by being interposed in a part of a torque transmitting apparatus which travels by transmitting output torque of a motor of an automobile to wheels, a device rotatably supported by a bearing. A rotating shaft, a metal truncated cone having a lower bottom center fixed to an end of the rotating shaft, a second rotating shaft rotatably supported by a bearing, and an end of the rotating shaft The center of the upper bottom surface is fixed to the hollow truncated cone made of metal whose inner peripheral surface is opposed to the outer peripheral surface of the truncated cone and the inner peripheral surface thereof with a predetermined gap length, and the gap between the truncated cone and the truncated hollow cone is fixed. A plurality of juxtaposed units are arranged side by side while maintaining a predetermined slight inclination angle with respect to the generating line of the truncated cone, and are rolled in the gap and mounted so that the bottom surface having a large diameter is on the opening side of the hollow truncated cone. An elongated conical roller, and a truncated cone having the small diameter end of the conical roller. A device for loosely fitting and holding at an equal pitch on the outer peripheral side of the upper bottom surface, and an elongate mold on the outer periphery of a disk supported on the lower bottom side of the truncated cone so as to be rotatable with respect to the first rotation axis. A device for loosely fitting and holding the large-diameter end portion of the conical roller at an equal pitch, and controlling the rotation of the disc at a predetermined angle in the forward and reverse directions to incline the elongated conical roller with respect to the generatrix. A drive device for selecting and holding a first mode for holding the angle at a predetermined value and a second mode for holding the same inclination angle in the opposite direction to the bus,
A device for converting to a first mode in an early stage of stepping on an accelerator petal, a device for converting to a second mode in an early stage of stepping on a brake petal,
Means for transmitting torque to the prime mover by one of the two rotating shafts and transmitting torque to the wheels by the other.

[0004]

A one-way conical roller bearing clutch device is mounted between the prime mover and the wheels. When the accelerator pedal is depressed during traveling, the clutch device is converted into a one-way clutch and performs inertial traveling at an initial stage, so that gasoline consumption or power consumption can be reduced. When the brake pedal is depressed, the clutch device is converted into a two-way clutch in the initial stage, and the motor and the wheels are connected to operate the engine brake so that the engine can be decelerated. Therefore, there is an effect that the consumption of fuel or electric power can be reduced without changing the driving feeling.
Further, the device of the present invention has an effect of increasing the service life since there is no sliding friction mechanism.

[0005]

Next, the details of the present invention will be described with reference to embodiments.
FIG. 1 is an explanatory diagram illustrating the configuration of an automobile to which the device 4 or 4a of the present invention is applied. Reference numeral 1 denotes a gasoline engine whose output is input to an automatic transmission 3 via a fluid clutch 2. By the output rotation shaft of the transmission 3,
The device 4 of the present invention is driven, and the differential gear device 5 is driven by the output shaft. In the case of an electric vehicle, the symbol 1 is a DC motor and the fluid clutch 2 is eliminated. Left and right rear wheels 6a, 6b are provided by two outputs of the differential gear device 5.
Is being driven. The same object is achieved by moving the device 4 of the present invention to the position indicated by the symbol 4a.

Next, the details of the apparatus of the present invention indicated by reference numeral 4 are shown in FIG.
Will be described. In FIG. 2, the left end of the rotating shaft 9 is shown in FIG.
Is connected to the output shaft of the transmission 3. The right end of the rotating shaft 7 is an input shaft of the differential gear device 5 of FIG. Symbols 7a and 7b indicated by dotted lines support the rotating shafts rotatably by ball bearings of the rotating shafts 9 and 7, respectively. The rotating shaft 7 is fixed to the center of the bottom surface of the rotor 8 which is a hollow truncated cone. The rotor 8 is made of metal, the details of which are shown in FIG. In FIG. 5, the outer peripheral surface of the rotor 8 is shown by a solid line,
The inner peripheral surface is indicated by a dotted line. The rotating shaft 7 is fixed so as to coincide with the center axis of the rotor 8.

The inner peripheral surface of the rotor 8 and the outer peripheral surface of the metal truncated cone 11 maintain a predetermined gap, and the center of the lower bottom surface of the truncated cone 11 is fixed to the rotating shaft 9. Only the truncated cone 11 is shown in FIG. In FIG. 3, a truncated cone 11 is fixed to the right end of the rotating shaft 9, and both are rotated synchronously, and the outer peripheral surface of the truncated cone 11 is connected to the inner peripheral surface of the rotor 8 of FIG. opposite. When the truncated cone 11 is large, a cavity may be provided inside. The truncated cone 11 will be referred to as the rotor 11
Called. In the gap between the inner peripheral surface of the rotor 8 and the outer peripheral surface of the rotor 11, a plurality of conical rollers 13a, 13b,.

FIG. 4 shows the details of the conical roller 13a. It is slender and has rotating shafts 14a and 14b protruding from both ends. Rotors 8, 11 and conical roller 13
Since a, 13b,... may slide with each other, it is preferable to use stainless steel for rust prevention. Disc 1 of FIG.
Reference numeral 2b is fixed to the right end of the rotor 11, and the disk 12a is in contact with the left end of the rotor 11 and is held so as to be able to turn left and right around the rotation shaft 9 by a predetermined angle. A ring 12c is fixed to the disk 12a, and the ring 12c is loosely fitted on the rotating shaft 9.

A conical roller 13 is provided on the outer periphery of the disc 12b.
Holes into which the right rotation shafts a, 13b,... are loosely fitted are provided at the same pitch as the number of the conical rollers, so that the conical rollers can be rotatably and axially moved. FIG. 6 is a plan view of the disk 12a as viewed from the direction of arrow A in FIG. 6, holes 24a, 24b,... Are provided in the outer peripheral surface of the disk 12a, and the left end rotation shafts of the conical rollers 13a, 13b,. It is loosely fitted so that it can move in the axial direction. The support shaft 15a erected on the bottom surface of the rotor 11
A hole (not shown, but formed into an arc-shaped hole so that the disk 12a can rotate to the left and right) is inserted through the hole 2a and protrudes from the upper surface of the disk 12a. The central portion 23 of the mild steel actuator 15 is loosely fitted on the support shaft 15a.

The electromagnetic solenoids 19a and 19b are
a, and arc-shaped portions at both ends of the actuator 15 are inserted into the central holes thereof. Electromagnetic solenoid 19
When a is energized, the actuator 15 is sucked and the disk 12a rotates clockwise with respect to the rotor 11 by a set angle, and when the electromagnetic solenoid 19b is energized, the actuator 15 moves in the opposite direction. And the disk 12a rotates counterclockwise by the set angle. Other electromagnetic devices can be used as long as the above-mentioned object can be achieved. The same object is achieved by the means shown in FIG.
In FIG. 9, the support shaft 15a is erected on the disk 12a, and the free ends of the mild steel actuators 30a and 31a are respectively supported on the support shaft 1a.
5a is loosely fitted. Symbols 30 and 31 are well-known electromagnetic plungers. Although not shown, the electromagnetic plungers 30 and 31 are fixed to a disk surface whose center is fixed to the rotating shaft 9 in FIG. When the electromagnetic plunger 30 is energized, the actuator 30a is attracted and the disk 12a rotates clockwise by a set angle, and when the electromagnetic plunger 31 is energized, the actuator 31a is attracted and the disk 12a is rotated. Rotates counterclockwise by the set angle.

As can be seen from the above description, the disk 12a
Of the conical roller 1
.. Are configured to be inclined left and right by an equal angle from the generatrix of the rotor 11. For example, the conical roller 13b is inclined with respect to the generatrix 13 indicated by a dotted line in FIG. In FIG. 2, when the rotating shaft 9 rotates in the direction shown by the arrow B, the conical roller 13b rotates in the opposite direction.
It rolls upward on the drawing and moves rightward at the same time. Therefore, the rotor 8 and 11 are cut into the gap, and the rotor 8 is driven in the direction of arrow B. Therefore, the rotating shafts 9 and 7 rotate synchronously. The situation described above is exactly the same for other conical rollers. In order to increase the driving torque, it is preferable to increase the number of conical rollers 13a, 13b,. Since the conical rollers 13a, 13b,... Move in the axial direction, the length of the conical rollers in FIG. 4 needs to be smaller than the distance between the disks 12a and 12b by a predetermined value. If the rotation speed of the rotating shaft 9 is reduced during the synchronous rotation, the conical rollers 13a, 13
Since b,... are rolled by the rotor 8 in the same direction as the arrow B, they move to the left and are converted into a mode in which they move in the gaps between the rotors 11 and 8. Therefore, the rotating shaft 7 and the rotor 8 are changed to a mode in which the rotating shaft 9 and the rotor 11 rotate independently of each other. When the rotating shaft 9 is rotated faster than the rotating shaft 7, the conical rollers 13a and 13b move to the right again, and the rotors 11 and 8 rotate.
And rotate synchronously.

As will be understood from the above description, a one-way conical roller bearing clutch is provided. As described above, when the driving rotary shaft 9 is at a low speed and the driven rotary shaft 7 is freely rotating, the conical rollers 13a, 13b,... , The conical roller moves to the right and cuts into the gap between the rotors 11 and 8, clutching the two, and converting into a mode of synchronous rotation. Therefore, the clutch is converted to a bidirectional clutch instead of a one-way clutch. At this time, when a torque for increasing the rotation of the rotating shaft 9 is applied again, the conical rollers 12a, 13b,.
And the rotor 1 is moved to the left.
Are loosely fitted in the gap between 1 and 8, but at the same time, if the inclination angles of the conical rollers 13a, 13b,. And 8
To convert to the first mode.

Next, the relationship between the electromagnetic device that performs the above-described mode switching and the traveling of the automobile will be described with reference to FIG.
In this case, the rotating shaft 9 is driven by an automobile engine, and the rotating shaft 7 drives wheels. In FIG.
Symbols 22a and 22b are positive and negative terminals of the DC power supply. When the accelerator pedal is depressed, the electric switch 21a that is linked in the initial stage is closed, so that the flip-flop circuit 2
0 (hereinafter, referred to as an F circuit) is energized to energize the electromagnetic solenoid 19b. Accordingly, the disc 12a rotates and the conical roller has the inclination angle shown in FIG. 2, and the mode is the inertia traveling mode as described above, and the vehicle travels with inertia even when the accelerator pedal is returned. When the brake pedal is depressed for decelerating braking, the electric switch 21b is closed, and the F circuit is energized by the power source + pole 22a via the AND circuit 25 to energize the electromagnetic solenoid 19a. At this time, since the accelerator petal has been returned, the electric switch 21a is open. Reference numeral 10 denotes a slip ring for energizing the rotating electromagnetic solenoids 19a and 19b from the positive pole 22a and the negative pole 22b. When the electromagnetic solenoid 19a is energized when the brake pedal is depressed, the inclination angle of the conical roller is reversed and the mode of the engine brake is changed as described above.

When the brake pedal is depressed during high-speed inertial running, the engine is at a low speed, resulting in a sudden engine brake, which has the disadvantage of shocking the vehicle body and the human body. Means for eliminating such a defect will be described. When the brake pedal is depressed during high-speed inertia traveling in the top traveling mode, the electric switch 21b is closed. Block circuit 2
Reference numerals 8a and 28b denote detection devices for obtaining detection signals of the traveling speed of the automobile and the detection signal of the engine speed, respectively. If the detection signal of the block circuit 28a is larger than the detection signal of the block circuit 28b, the output of the operational amplifier 28 becomes low level, and the AND circuit 25
Is also low level.

At this time, since the input of the AND circuit 26 via the inverting circuit 27 becomes high level, the AND circuit 2
The output of the sixth output terminal 26a also goes high. Terminal 2
When the output of 6a is at a high level, the carburetor is operated so as to accelerate the engine, so that the rotational speed of the engine rapidly increases. Therefore, when the detection signal of the block circuit 28b rises and exceeds the detection signal of the traveling speed, that is, the rotation speed of the wheel, the output of the operational amplifier 28 is changed to a high level, and the output of the AND circuit 25 also changes to a high level. Is inverted, and the electromagnetic solenoid 19a is energized. Accordingly, the engine brake is operated. At this time, the rotational speeds of the rotating shaft 9 and the rotating shaft 7 in FIG. At this time, the inverting circuit 27
Becomes low level, the output of the AND circuit 26 is also changed to low level, the acceleration of the engine is stopped, and the mode becomes the slow rotation mode. Accordingly, the mode is a mode in which the engine brake operates.

The present invention can be implemented even if the electromagnetic solenoid 19a shown in FIG. 6 is removed. In this case, when the electromagnetic solenoid 19b is energized, the actuator 15 is attracted for a predetermined distance, and when the energization is stopped, the actuator 15 springs back for a predetermined distance. In the case of the device of FIG. 9, the same purpose is achieved by removing the electromagnetic plunger 31. The same purpose can be achieved by using, for example, a hydraulically operated device instead of an electromagnetic device. In FIG. 2, when the rotor 11 and the rotor 8 are locked, the two repulsive forces act on each other. Therefore, the forces in the directions of arrows 7d and 7c act on the bearings 7a and 7b, respectively. Therefore, it is necessary to adopt a configuration in which the rotating shafts 9 and 7 do not move due to this force. The present invention can be implemented even when the rotating shaft 7 is driven by the engine and the wheels are driven by the rotating shaft 9. The conical rollers 13a, 13b,... Are mounted on the side of the rotor 11, but the present invention can be implemented by mounting on the inner peripheral surface of the rotor 8.

FIG. 7 shows a configuration in which the rotor 11 is formed as a cylindrical column, and the conical rollers 13a, 13b,... Are mounted in the gap between the outer peripheral surface of the rotor 11 and the inner peripheral surface of the rotor 8 in the previous embodiment. It has the same effect as the example. FIG. 8 shows a configuration in which the rotor 8 is formed as a cylinder, and the same operation as that of the previous embodiment is achieved by mounting the conical rollers 13a, 13b,... In the gap between the outer peripheral surface of the rotor 11 and the inner peripheral surface of the rotor 8. The effect is obtained. In the present invention, when the rotor 11 or the rotor 8 is a cylinder or a cylinder as described above, the operation is the same, so these are called a truncated cone or a hollow truncated cone. The same operation and effect can be obtained when the means of the present invention is applied to an electric vehicle, but in this case, the regenerative braking operation is performed when the engine brake operates.

[0018]

The acceleration is accelerated by the accelerator petal, and when the accelerator petal is returned, the vehicle is automatically converted to the inertial running, so that the consumption of fuel or electric power can be greatly reduced. When the brake petal is used, the mode can be automatically switched to the engine braking or regenerative braking mode, so that the braking operation can be freely performed with the conventional driving feeling. In the above-described operation, the one-way clutch or the two-way clutch operation is automatically changed, so that there is no wear portion and the service life is extended.

[0019]

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a configuration of an automobile in which the device of the present invention is used.

FIG. 2 is an explanatory view of the mechanism of the apparatus of the present invention.

FIG. 3 is an explanatory view of a truncated cone 11 of FIG. 2;

FIG. 4 is an explanatory view of a conical roller.

FIG. 5 is an explanatory view of the hollow truncated cone 8 of FIG. 2;

FIG. 6 is a circuit diagram for controlling the energization of the disk 12a and the electromagnetic solenoids 19a and 19b.

FIG. 7 is an explanatory view of another embodiment of the device of the present invention.

FIG. 8 is an explanatory view of still another embodiment of the apparatus of the present invention.

FIG. 9 is an explanatory view of another embodiment of the driving device of the disk 12a.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Engine 2 Fluid clutch 3 Automatic transmission 4, 4a Invention device 5 Differential gear device 6a, 6b Wheel 7, 9 Rotary shaft 8 Hollow truncated cone 7a, 7b Bearing 12a, 12b Disk 13a, 13b, ... Conical roller 24a Holes 15, 30a, 31a Actuator 19a, 19b Electromagnetic solenoid 30, 31 Electromagnetic plunger 10 Slip ring 20 Flip-flop circuit 28a Wheel rotational speed detector 28b Engine rotational speed detector 11 Truncated cone

Claims (1)

(57) [Claims] An apparatus for performing inertial running by being interposed in a part of a torque transmitting device that travels by transmitting output torque of a motor of an automobile to wheels, wherein a first rotating shaft rotatably supported by a bearing. A metal truncated cone having a lower bottom center fixed to an end of the rotation shaft, a second rotation shaft rotatably supported by a bearing, and an upper bottom center positioned at an end of the rotation shaft. Part is fixed, a hollow truncated cone made of metal in which the inner peripheral surface is held opposite to the side surface outer periphery of the truncated cone and a predetermined gap length, and a bus bar of the truncated cone in the gap between the truncated cone and the truncated cone. A plurality of elongate conical rollers which are arranged side by side while maintaining a predetermined slight inclination angle with respect to and which are rolled in the gap and mounted so that the bottom surface having a large diameter is on the opening side of the hollow truncated cone. And the small-diameter end of the conical roller is placed on the outer periphery of the upper bottom surface of the truncated cone. A device for loosely fitting and holding at a desired pitch, and a diameter of an elongated conical roller on an outer periphery of a disk supported so as to be rotatable with respect to a first rotation axis on the lower bottom surface side of the truncated cone. A device for loosely fitting and holding a large end at an equal pitch, and controlling the rotation of the disc at a predetermined angle in the forward and reverse directions to set the inclination angle of the elongated conical roller with respect to the generatrix to a predetermined value. A driving device for selecting and holding the first mode to be held and the second mode to hold the same inclination angle in the opposite direction with respect to the generatrix, and converting to the first mode in an early stage of stepping on the accelerator petal The device and the second stage during the early stages of stepping on the brake petals
And a means for transmitting torque to the prime mover by either one of the first and second rotating shafts and transmitting torque to the wheels by any of the other. Inertial running device of a car.