WO2009151252A4

WO2009151252A4 - Device for increasing the energy efficiency of a vehicle using a spring

Info

Publication number: WO2009151252A4
Application number: PCT/KR2009/003076
Authority: WO
Inventors: 이성
Original assignee: Lee Sung
Priority date: 2008-06-10
Filing date: 2009-06-09
Publication date: 2010-07-29
Also published as: WO2009151252A2; WO2009151252A3

Abstract

The present invention relates to a device for increasing the energy efficiency of a vehicle using a spring, which accumulates rotating forces of wheels into an elastic energy of the spring during braking or deceleration of the vehicle, and reuses the elastic energy accumulated in the spring as auxiliary rotating forces for driving the wheel shafts during starting or acceleration of the vehicle, thereby increasing the energy efficiency and improving the fuel efficiency of the vehicle at the same time. The device for increasing the energy efficiency of a vehicle using a spring according to the present invention includes: a first sensor installed on the brake pedal of the vehicle to sense whether or not the brake pedal is pressed; a second sensor installed on the accelerator pedal of the vehicle to sense whether or not the accelerator pedal is pressed; a third sensor installed on a wheel shaft of the vehicle to sense the rotations per unit of time; a rotary shaft rotatably installed on one side of the wheel shaft; a spring installed on the rotary shaft such that the spring is wound by the rotation of the rotary shaft during braking or deceleration of the vehicle and rotates the rotary shaft by a restored elasticity during starting or acceleration of the vehicle; a fourth sensor installed in the spring to sense whether the spring is restored or not by detecting pressure according to the operation of the spring; a controller installed in the vehicle to receive signals from the first sensor, the second sensor, the third sensor, and the fourth sensor and generate a control signal; and an electric driving unit which is interposed between the wheel shaft and the rotary shaft, and which interlocks the wheel shaft and the rotary shaft such that in accordance with the control signal received from the controller, the rotating force of the wheel shaft can be transmitted to the rotary shaft to accumulate an elastic energy in the spring during braking or deceleration of the vehicle and the reverse rotating force of the rotary shaft generated by the restoration of the elastic force of the spring can be converted into a forward direction to transmit auxiliary rotating force to the wheel shaft during starting or acceleration of the vehicle, and which separates the wheel shaft and the rotary shaft from each other such that they are not interlocked with each other immediately after the restoration of the spring.

Description

Energy efficiency enhancement system for vehicles using spring

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an energy efficiency increasing apparatus for a vehicle, which improves the energy efficiency of a vehicle and improves fuel economy.

Generally, a vehicle repeats traveling and braking by using energy generated through combustion of fuel such as gasoline in an internal combustion engine installed.

The vehicle is provided with a brake system, which is used to decelerate or stop a traveling vehicle and maintain a parked state. In general, the kinetic energy of the vehicle is converted into heat energy of the brake pad Friction brake is used most frequently.

However, although the braking energy for stopping the vehicle in operation occupies a considerable amount of the energy of the vehicle generated by the combustion of the fossil fuel, most of the braking energy is used for the purpose of stopping the vehicle The brake energy is converted into heat energy by the brake pads and is released to the atmosphere. This release of braking energy causes a decrease in the overall energy efficiency of the vehicle.

In addition, the braking energy thus discharged causes more fuel consumption, which adversely affects the fuel economy, and at the same time, there is a problem that a great deal of oil cost is required to operate the vehicle in the high oil price era like today.

An object of the present invention is to accumulate the rotational force of a wheel as a spring energy when the vehicle is braking or decelerating and recovers the elastic energy accumulated in the spring when the vehicle starts or accelerates as an auxiliary rotational force for traveling on a wheel axis, To improve energy efficiency of a vehicle and to improve fuel efficiency.

The above-described object of the present invention can be achieved by a vehicular brake system comprising a first sensor installed on a brake pedal of a vehicle and detecting whether the brake pedal is pressed, a second sensor provided on an accelerator pedal of the vehicle, A third sensor mounted on the rotating shaft and rotatably installed on one side of the wheel shaft; a second sensor installed on the rotating shaft and wound by rotation of the rotating shaft when the vehicle is braked or decelerated, A fourth sensor installed in the first spring and detecting whether the spring is restored to the original shape by detecting a pressure of the spring when the first spring is operated, A controller for receiving a signal from the first sensor, the second sensor, the third sensor and the fourth sensor to generate a control signal; And when the vehicle is braking or decelerating according to a control signal received from the controller, rotational force of the wheel axle is transmitted to the rotational shaft so that elastic energy is accumulated in the spring, and when the vehicle is started or accelerated, Wherein the wheel shaft and the rotation shaft are interlocked with each other so that the auxiliary rotation force is transmitted to the wheel shaft by reversing the reverse rotation force of the rotation shaft by the rotation of the wheel shaft and the rotation axis, The present invention is achieved by providing an energy efficiency increasing apparatus for a vehicle using a spring including a unit.

According to a preferred aspect of the present invention, the apparatus further includes a shaft fixing unit installed on the rotating shaft and fixing the rotating shaft so as not to rotate according to a control signal received from the controller.

According to a more preferred feature of the present invention, a vehicle speed sensor is installed on a transmission of a vehicle, and senses a speed of the transmission and transmits the sensed speed to the controller, thereby enabling the controller to determine whether the vehicle is braked or decelerated And a fifth sensor for recognizing the start or acceleration of the vehicle through a combination with the signal of the second sensor.

According to still another aspect of the present invention, there is further provided an operation switch installed in the vehicle and controlling operation of the electric unit by transmitting a signal to the controller according to the pressure.

According to a further preferred feature of the present invention, the auxiliary rotation force of the rotation shaft transmitted to the wheel shaft by the transmission unit is greater than the rotation force of the wheel shaft.

According to the energy saving device for a vehicle using the spring according to the present invention, the rotational force of the wheel is accumulated as elastic energy of the spring when the vehicle is braked or decelerated, and the elastic energy accumulated in the spring So that the energy efficiency of the vehicle can be increased and the fuel consumption can be improved.

1 is a schematic structural view of an energy efficiency increasing apparatus for a vehicle using a spring according to the present invention.

Description of the Related Art [0002]

1: Energy efficiency enhancing device for a vehicle using the spring according to the present invention

3: Brake pedal

5: accelerator pedal

7: Wheel axle

9: Transmission

10: first sensor

20: second sensor

30: Third sensor

40:

50: Hand winding

60: fourth sensor

70: controller

80: Electric power unit

90: Axis fixing unit

100: fifth sensor

110: OFF switch

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are intended to illustrate the present invention in a manner that allows a person skilled in the art to easily carry out the invention. And this does not mean that the technical idea and scope of the present invention are limited.

FIG. 1 is a schematic structural view of an energy efficiency increasing apparatus for a vehicle using a spring according to the present invention.

The energy efficiency enhancing device 1 for a vehicle using the spring according to the present invention is provided on a vehicle (not shown) and adjusts the rotational force of the wheel shaft 7 when the vehicle is braked or decelerated by the elastic energy of the spring 50 And the elastic energy accumulated in the spring 50 at the time of starting or accelerating the vehicle is recycled as the auxiliary rotational force of the wheel shaft 7 so that the energy efficiency of the vehicle can be increased and the fuel consumption can be improved. A first sensor 10 installed on the brake pedal 3 of the vehicle for sensing whether the vehicle is pressurized or not and a second sensor provided on the accelerator pedal 5 of the vehicle for sensing whether the vehicle is pressurized, A third sensor 30 installed on the wheel shaft 7 of the vehicle for sensing the number of revolutions per unit time, a rotary shaft 40 rotatably installed on one side of the wheel shaft 7, (40), and when the vehicle is braking or decelerating, the rotation shaft (50) for rotating the rotating shaft (40) while being elastically restored at the time of starting or accelerating the vehicle and detecting the pressure in accordance with the operation of the spring (50) A fourth sensor 60 installed in the vehicle and detecting signals of the first sensor 10, the second sensor 20, the third sensor 30 and the fourth sensor 60 And a controller 70 for generating a control signal based on the control signal received from the controller 70. The controller 70 is provided between the wheel axle 7 and the rotary axle 40 and controls the rotational force of the wheel axle 7 Elastic energy is stored in the spring 50 so as to be transmitted to the rotary shaft 40. When the vehicle is started or accelerated, the reverse rotation force of the rotary shaft 40 due to the elastic restoration of the spring 50 is forward- The wheel shaft 7 and the rotating shaft 40 are interlocked with each other so that the auxiliary rotating force is transmitted to the main body 7, And a power transmission unit 80 for separating the wheel shaft 7 and the rotation shaft 40 from each other so as not to be interlocked with each other.

A first sensor 10 is mounted on the brake pedal 3 of the vehicle. The first sensor 10 detects whether the brake pedal 3 is pressed or not by the driver's intention, and actually brakes the brake pedal 3 And may be formed of various types of sensors according to an embodiment of the present invention. However, it may be formed of a piezoelectric sensor installed on the brake pedal 3 to sense the pressure Do.

The signal transmitted from the first sensor 10 to the controller 70 is transmitted to the transmission unit 80 during braking or deceleration of the vehicle by interlocking the wheel shaft 7 and the rotary shaft 40 in the same direction And acts as one of the parameters for generating a control signal for winding the handwind 50 to be wound.

The accelerator pedal 5 of the vehicle is provided with a second sensor 20 which detects acceleration of the accelerator pedal 5 of the vehicle and accelerates the accelerator pedal 5 for actual start And may be formed of various types of sensors according to an embodiment of the present invention. However, it may be formed of a piezoelectric sensor installed on the accelerator pedal 5 to sense pressure Do.

The signal transmitted from the second sensor 20 to the controller 70 causes the electric motor 80 to interlock the wheel shaft 7 and the rotary shaft 40 in the different directions when the vehicle is started or accelerated, 50 serves as one of the parameters for generating a control signal for causing the elastic rotational force of the rotary shaft 40 to be transmitted by the auxiliary rotational force of the wheel shaft 7. [

A third sensor 30 is mounted on the wheel shaft 7 of the vehicle and detects whether the actual vehicle is stopped or departing by sensing the revolution speed per unit time of the wheel shaft 7, The controller 70 may detect whether the vehicle is running at a low speed or while driving at a high speed and transmit it to a controller 70 to be described later. And an encoder for sensing the number of revolutions of the motor.

The signal transmitted from the third sensor 30 to the controller 70 is transmitted to the transmission unit 80 during braking or deceleration of the vehicle by interlocking the wheel shaft 7 and the rotary shaft 40 in the same direction Or when the vehicle is starting or accelerating, the transmission unit 80 is operated as one of parameters for generating a control signal for causing the wheel 50 and the wheel 50 to be wound, So that the elastic rotation force of the rotary shaft 40 by the spring 50 acts as one of the parameters for generating the control signal for transmitting the auxiliary rotary force of the wheel shaft 7. [

A rotary shaft 40 is rotatably installed at one side of a wheel shaft 7 of the vehicle. The rotary shaft 40 is rotated in conjunction with the wheel shaft 7 to wind the spring 50 on the wheel shaft 7, (Not shown) that is extended to one side of the wheel shaft 7 in the vehicle and fixed to the vehicle body by transmitting elastic rotation force to the wheel shaft 7 while being rotated by the elastic force of the wheel 50 (Not shown).

A spring 50 is provided on the rotation shaft 40. The spring 50 is wound by rotation of the rotary shaft 40 during braking or decelerating of the vehicle and accumulates braking energy in the form of elastic energy, At the time of acceleration or deceleration, the rotary shaft 40 is rotated while being elastically restored, and one end thereof is fixed to the rotary shaft 40 and the other end thereof is fixed to a vehicle body (not shown).

Although the term spring 50 is used, the term includes all elastic members of different shapes and sizes that allow the accumulation of elastic energy with respect to rotation of the wheel shaft 7 in a certain direction.

The fourth sensor 60 is installed in the above-mentioned spring 50. The fourth sensor 60 detects whether the spring 50 is restored to its original state by detecting the pressure in accordance with the operation of the spring 50, The sensor may be formed of various types of sensors according to an embodiment of the present invention. However, the sensor may be installed in the spring 50 to detect the elastic energy of the spring 50, And a piezoelectric sensor that senses the pressure due to the winding and unwinding.

The fourth sensor 60 may further cause the controller 70 to detect the pressure of the spring 50 when the pressure is greater than a set value in order to prevent the spring 50 from being damaged due to excessive accumulation of elastic energy, Thereby causing a control signal to cause the shaft 7 and the rotary shaft 40 to be separated from each other.

The signal transmitted from the fourth sensor 60 to the controller 70 is transmitted to the wheel 70 by the elastic force of the wheel shaft 7, By acting as one of the parameters for generating the control signal for causing the transmission unit 80 to separate the wheel shaft 7 and the rotary shaft 40 when the vehicle is traveling at a constant speed by the rotation of the wheel shaft 7 And prevents the rotation of the rotary shaft 40 and prevents the rotation of the rotary shaft 40 from being damaged.

A controller 70 is installed in the vehicle and includes a first sensor 10, a second sensor 20, a third sensor 30, a fourth sensor 60, and a fifth sensor 60 And generates a control signal for operating the electromotive unit 80, which will be described later, by receiving the signal of the sensor 100, and is formed in the form of a printed circuit board on which a specific control circuit is implemented. The controller 70 may be integrally incorporated in an entire control unit (not shown) of the vehicle itself, or may be formed separately from the entire control unit of the vehicle itself.

A transmission unit 80 is provided between the wheel shaft 7 and the rotary shaft 40. The transmission unit 80 is controlled by the control signal received from the controller 70, The rotational force of the rotary shaft 40 is transmitted to the rotary shaft 40 so that the spring 50 can be wound and the reverse rotation force of the rotary shaft 40 due to the elastic restoration of the spring 50 is transmitted The wheel shaft 7 and the rotary shaft 40 are interlocked so that an auxiliary rotary force is transmitted to the wheel shaft 7 so that the rotation of the wheel shaft 7 is not transmitted to the rotary shaft 40 during traveling of the vehicle. And the rotation shaft 40 are interlocked with each other.

The transmission unit 80 may be operated in accordance with a control signal such that one axis is rotated in the same direction with respect to the other axis, or the other axis is rotated in a different direction with respect to one axis The transmission unit 80 may be integrally formed with the wheel shaft 7 and the rotary shaft 40. The transmission unit 80 may be integrally formed with the wheel shaft 7 and the rotary shaft 40, Includes gears installed. The transmission unit 80 also preferably includes a disk clutch (not shown) for gear protection according to the rotation ratio in the course of its output shaft being transmitted to the wheel axle.

When the vehicle is braked or decelerated, for example, only one gear is interposed between the wheel shaft 7 and the rotary shaft 40 so that the rotary shaft 40 is rotated in the same direction as the rotational direction of the wheel shaft 7 Two gears are interposed between the wheel shaft 7 and the rotary shaft 40 to rotate the rotary shaft 40 due to the elastic energy of the spring 50, When the elastic energy of the spring 50 is exhausted, the rotating shaft 40 is rotated with respect to the rotation of the wheel shaft 7, So that it is not interlocked.

It is preferable that the auxiliary rotational force of the rotary shaft 40 transmitted to the wheel shaft 7 by the transmission unit 80 is greater than the rotational force of the wheel shaft 7 at the time of starting or accelerating the vehicle, When the auxiliary rotating force of the rotating shaft 40 transmitted to the wheel shaft 7 by the transmission unit 80 described above is smaller than the rotating force of the wheel shaft 7, the rotation of the rotating shaft 40 is transmitted to the wheel shaft 7 Since the rotation of the wheel shaft 7 can act as an obstruction element.

For the same reason as described above, the rotation number of the output shaft (not shown) of the transmission unit 80 when the auxiliary rotation force is transmitted to the wheel shaft 7 by the above-described transmission unit 80 at the start or acceleration of the vehicle Is greater than the number of revolutions of the wheel shaft (7).

The shaft fixing unit 90 is mounted on the rotary shaft 40. The shaft fixing unit 90 is configured to rotate the wheel shaft 7 and the rotary shaft 40 in response to a control signal received from the controller 70 The elastic energy of the accumulated spring 50 is maintained as it is at the time of starting or accelerating the vehicle by fixing the rotation shaft 40 so as not to be rotated so that the rotating shaft 40 is rotated in accordance with the control signal received from the controller 70, Or gripping both sides of the outer circumferential surface of the gripper, or releasing the gripping state.

A fifth sensor 100 is mounted on the transmission 9 of the vehicle which transmits a signal through the sensing of the speed change of the transmission 9 to the controller 70, To allow the power of the wheel shaft 7 to be stored as the elastic energy of the spring 50 by causing the second sensor 20 to recognize the braking or deceleration of the vehicle through combination with the signal of the first sensor 10, The elastic energy of the spring 50 is transferred to the wheel shaft 7 as auxiliary energy so as to detect the speed change position of the transmission 9 As shown in FIG.

The signal transmitted from the fifth sensor 100 to the controller 70 is transmitted to the high speed end of the vehicle after the vehicle starts to travel and all the elastic energy of the spring 50 is transmitted as the auxiliary torque of the wheel shaft 7 And acts as one of the parameters for generating the control signal for causing the transmission unit 80 to separate the wheel shaft 7 and the rotary shaft 40 together with the signal of the fourth sensor 60 when the vehicle is traveling And prevents the rotation of the rotary shaft 40 due to the rotation of the wheel shaft 7 during the acceleration so as to prevent the rotation of the rotary shaft 40 from being damaged.

In the interior of the vehicle, an operation switch 110 is provided. The operation switch 110 transmits a signal to the controller 70 in response to the pressure, thereby controlling whether the electric unit 80 is operated or not. The operation of the energy efficiency increasing apparatus 1 for a vehicle using the spring according to the present invention can be turned on or off. The off state of the operation switch 110 is a state in which the elastic energy of the spring 50 is stored or the elastic energy is reduced to the wheel axle 7 and then the rotational axis 40 and the wheel axle 7 are disengaged To keep the status constant.

The driver can turn off the operation of the energy efficiency increasing apparatus 1 using the spring according to the present invention during the downhill running or the slow running operation through the operation of the operation switch 110, So that more options can be given to the driver.

Hereinafter, an overall operation of the energy efficiency increasing apparatus 1 for a vehicle using the spring according to the present invention will be described with reference to the accompanying drawings.

First, when the controller 70 detects that the current vehicle is gradually slowing down for stopping by inputting signals of the first sensor 10, the third sensor 30, and the

fifth sensor

100, 80 and the shaft fixing unit 90 so that the transmission unit 80 can rotate about the rotational axis 40 in the direction in which the spring 50 is wound with respect to the rotational direction of the wheel shaft 7 And the shaft fixing unit 90 releases the gripping state so that the rotation shaft 40 can be rotated. As a result, as the rotation shaft 40 is rotated and the spring 50 on the rotation shaft 40 is wound, Energy is accumulated in the elastic energy form of the spring (50).

When the controller 70 senses that the elastic energy of the spring 50 has been accumulated at the set maximum value by the signal of the fourth sensor 60, the controller 70 transmits a control signal to the electromotive unit 80 and the shaft fixing unit 90 The power transmission unit 80 releases the interlocked state of the wheel shaft 7 and the rotation shaft 40 and the shaft fixing unit 90 protects the manual winding 50 by gripping the rotation shaft 40 so as not to be rotated.

When the controller 70 detects that the vehicle is stopped by the input of signals from the first sensor 10, the third sensor 30 and the fifth sensor 100, the transmission unit 80 and the shaft fixing unit 90 The transmission unit 80 releases the interlocked state between the wheel shaft 7 and the rotary shaft 40 and the shaft fixing unit 90 grasps the rotary shaft 40 in such a manner that the rotary shaft 40 can not be rotated, 50 to be maintained until the vehicle starts or accelerates.

When the controller 70 senses that the vehicle is currently being driven by the input of signals from the second sensor 20, the third sensor 30 and the fifth sensor 100 or detects acceleration at a low speed, The transmission unit 80 interlockingly transmits the control signal to the transmission unit 80 and the shaft fixing unit 90 so that the rotation shaft 40 can be rotated in the other direction with respect to the rotation direction of the wheel shaft 7, The shaft fixing unit 90 releases the gripping state so that the rotation shaft 40 can be rotated so that the spring 50 is released by the elastic energy accumulated in the spring 50, And this reverse rotation force is again switched forward by the transmission unit 80 so that an auxiliary rotational force can be provided to the wheel shaft 7. [

When the controller 70 senses the exhaustion of the elastic energy accumulated in the spring 50 by the signal of the fourth sensor 60, the controller 70 transmits a control signal to the transmission unit 80 and the shaft fixing unit 90 The transmission unit 80 releases the interlocked state of the wheel shaft 7 and the rotary shaft 40. The shaft fixing unit 90 grasps the rotary shaft 40 again so that the rotary shaft 40 can not be rotated, As a result, the rotary shaft 40 and the spring 50 do not operate at all when the vehicle is running at a constant speed except for stopping and starting. The signal of the fourth sensor 60 acts as a main parameter for interrupting provision of the auxiliary torque at the start and stop of the vehicle.

When the controller 70 senses that the current vehicle is gradually slowing down for stopping the vehicle by inputting signals of the first sensor 10, the third sensor 30 and the fifth sensor 100 during the running of the vehicle, The operation is repeated again.

Claims

A first sensor installed on a brake pedal of the vehicle and detecting whether the brake pedal is pressed or not;

A second sensor installed on an accelerator pedal of the vehicle and detecting whether the accelerator pedal is pressed or not;

A third sensor installed on a wheel axis of the vehicle for sensing the number of revolutions per unit time;

A rotating shaft rotatably installed on one side of the wheel shaft;

A spring disposed on the rotary shaft and rotated by rotation of the rotary shaft when the vehicle is braked or decelerated, and is elastically restored when the vehicle is started or accelerated, thereby rotating the rotary shaft;

A fourth sensor installed in the handwheel and detecting whether the handwheel is restored to its original shape by detecting a pressure due to the operation of the handwheel;

A controller installed in the vehicle and receiving signals of the first sensor, the second sensor, the third sensor and the fourth sensor to generate a control signal; And

The rotation axis of the wheel axle is transmitted to the rotation axis when the vehicle is braked or decelerated according to a control signal received between the wheel axle and the rotation axis so that elastic energy is accumulated in the wheel, The wheel shaft and the rotary shaft are interlocked so that the auxiliary rotary force is transmitted to the wheel shaft by reversing the reverse rotation of the rotary shaft due to the elastic restoration of the spring, And a power unit for separating the rotating shafts so as not to be interlocked with each other.
The method according to claim 1,

Further comprising a shaft fixing unit installed on the rotating shaft and fixing the rotating shaft so as not to rotate according to a control signal received from the controller.
The method of claim 2,

The controller senses the speed of the transmission and transmits the sensed speed to the controller so that the controller recognizes whether the vehicle is braked or decelerated through a combination of the first sensor signal and the second sensor signal, And a fifth sensor for recognizing the start or acceleration of the vehicle through a combination of the first sensor and the second sensor.
The method of claim 3,

Further comprising an operation switch installed in a room of the vehicle and transmitting an electric signal to the controller according to the pressure to control whether the electric unit is operated or not.
The method according to any one of claims 1 to 5,

Wherein the auxiliary rotating force of the rotating shaft transmitted to the wheel shaft by the electric power unit is greater than the rotating force of the wheel shaft.