KR200211064Y1 - brake system for vehicle - Google Patents

Abstract

The present invention relates to a braking device for a vehicle. The parking brake is automatically operated during a rapid braking during a high-speed driving, a temporary stop of a congested road, or a parking lot, thereby doubling the braking performance and providing a driver's convenience while parking. There is no need to provide a separate operation lever for operating the brake is to ensure the space in the cabin to improve the habitability.

The present invention for achieving the above object, the control means for detecting the operation of the vehicle brake, the operation of the foot brake and the operation of the accelerator pedal, respectively, to determine whether the parking brake is operated, and outputted from the control means It consists of a forward / reverse rotation driving means for selectively rotating the motor in the forward / reverse direction according to the control signal, the parking brake operating means for operating the parking brake according to the operation of the forward / reverse rotation driving means.

Description

Brake system for vehicle

The present invention relates to a braking device for a vehicle. In particular, the foot brake and the parking brake are operated at the same time during high-speed driving or suspension, and the parking brake is automatically operated during parking, thereby doubling the braking performance during braking. The present invention relates to a braking device for a vehicle that can improve the occupancy of a vehicle interior by deleting a parking lever.

In general, a vehicle is provided with a braking device that selectively decelerates or stops the vehicle speed as necessary while driving, thereby switching the vehicle to a decelerated or stopped state. Such a braking device generally uses frictional force to heat the kinetic energy of the vehicle. The friction brake is divided into a foot brake and a hand operated parking brake. It is done.

In other words, the stepping foot brake obtains a braking force by using a friction force generated by pushing a friction material to a rotating object such as a brake drum or a disc rotor, and the braking is performed by the driver pressing the brake pedal while driving.

In addition, the parking brake is to brake the brake drum mounted on the propulsion shaft or to brake the rear wheel, which is when the driver pulls the operating lever to close the brake shoe to the brake drum of the rear wheel to brake the rear wheel by the friction force generated at this time. .

However, in the above-described braking device, the foot brake and the parking brake are configured to be operated by individual operations, and in a situation where a large braking force is required within a short time, such as during braking while driving, the driver presses the brake pedal with the foot to press the foot brake. It is necessary to operate the parking brake by pulling the cable by manipulating the control lever with the hand, and such simultaneous operation is not only difficult to be carried out by a skilled driver at the time of braking, but is almost impossible in a situation where there is no time.

Therefore, if the above-mentioned foot brake and parking brake can act at the same time so as to obtain greater braking force when the vehicle brakes rapidly during high-speed driving, the braking performance is improved and the braking distance is reduced accordingly. You can plan.

In addition, when the vehicle needs to repeat slow motion and stop while driving on a congested road, the driver must frequently repeat the stepping and releasing of the brake pedal, which frequently increases the fatigue of the driver.

Therefore, if the braking is automatically performed instead of the frequent operation of the brakes on the congestion road, the driver's convenience can be achieved.

In addition, even if the driver does not operate the parking brake even during parking, if the parking brake is automatically activated, this may also help the driver's convenience.

The present invention has been devised in view of the above-mentioned point, and the parking brake is automatically operated at the time of sudden braking during a high speed driving, a suspension of a congestion road, or a parking lot, thereby doubling the braking performance and providing the driver's convenience. It is an object of the present invention to provide a braking device for a vehicle in which a space in a vehicle can be secured so that the occupancy can be improved by not having to provide a separate operation lever for operating the parking brake.

1 is a schematic configuration diagram of a braking device according to the present invention.

<Description of the code | symbol about the principal part of drawing>

1-vehicle speed sensor 2- accelerator pedal position sensor

3-brake pedal position sensor 4-timer

5-electronic control unit 6-motor

7-relay 8-battery

9-start switch 10-pinion gear

11-rack gear 12-ball joint

13-Pivot Member 14-Wire

15-movable member 16-shu

17-drum 18-link member

19-spring

The present invention for achieving the object of the above, the vehicle's behavior during driving by the vehicle speed sensor, the accelerator pedal position sensor and the brake pedal position sensor via the vehicle's rapid braking state, the temporary stop during driving of the congestion road Control means for judging the state and the parking state, respectively, and for determining the operation and release of the parking brake in each case; Parking brake operating means for operating the brake mechanism of the rear wheel in accordance with a control signal output from the control means; In a braking apparatus for a vehicle including forward / reverse rotation drive means for adjusting the operation and release operation of the parking brake actuation means, the parking brake actuation means includes a pinion gear installed on a drive shaft of the motor and the pinion gear. A rack gear that is engaged and linearly reciprocates along the rotational direction of the pinion gear, a pivot member coupled to the rack gear to rotate in accordance with the linear motion of the rack gear, and an actuation force applied to the pivot member to the rear wheel brake. And a wire member extending and extended to transmit to the mechanism, and a link member coupled between the shoe of the brake mechanism of the rear wheel while being coupled to the movable member connected to the wire, so that the parking brake can be used during high-speed driving, pause or parking. Can be operated automatically to improve driver's comfort and It allows.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic configuration diagram of a braking device according to the present invention.

As shown in the drawing, when the vehicle speed of the driving vehicle is a high speed of a certain degree or more, when the vehicle speed is zero, such as during a pause, and when the starting is turned off, such as when parking, the parking brake is automatically A control means configured to detect the operation of the vehicle brake, the operation of the foot brake, the operation of the accelerator pedal, and the operation of the accelerator pedal, for determining the operation of the parking brake, and the control signal output from the control means. According to the forward / reverse rotation driving means to selectively rotate the drive of the motor in the forward / reverse direction, the parking brake operating means configured to operate the parking brake in accordance with the operation of the forward / reverse rotation means.

The control means includes a vehicle speed sensor 1 for detecting a vehicle speed of a running vehicle, an accelerator pedal position detection sensor 2 for detecting the position of the accelerator pedal, and a brake pedal position for detecting the position of the brake pedal. It consists of a sensing sensor (3) and an electronic control unit (5) connected to each of the timer (4) to receive a detection signal from each of them.

In addition, the forward / reverse rotation driving means is controlled by the electronic control unit 5 to selectively supply the forward rotational power and the reverse rotational power to the motor 6. It is composed of a relay (7) having a, a battery (8) and a start switch (9) which is the body power source connected to the relay (7).

In addition, the parking brake operating means is engaged with the pinion gear 10 mounted on the rotation shaft of the motor 6 and the pinion gear 10 so as to reciprocate left and right according to the rotation direction of the pinion gear 10. The rack gear 11, the pivot member 13 which is hinged and fixed to the center of the rack gear 11 by being coupled with the front end of the rack gear 11 and the ball joint 12 by a pivot, The movable member 15 connected via the tip and the wire 14 and the link member connected to the shoe 16 to press the left and right shoes 16 toward the drum 17 when the movable member 15 descends to the drum 17. It consists of 18.

Here, the movable member 15 and the link member 18 are pivotally coupled to each other so that the link member 18 can be pushed out in the left and right directions during the downward movement of the movable member 15.

And the lower end of the movable member 15 is installed so that the spring 19 is elastically supported so that the shoe 16 connected to the link member 18 to assist in the lifting of the movable member 15 when the parking is released from the drum 17. It is intended to be spaced apart.

In the drawings, reference numeral 20 denotes a wheel cylinder, and 21 and 22 denote brake pedals and a master cylinder, respectively.

Hereinafter, the operation of the present invention will be described in detail.

First of all, during a rapid braking during high-speed driving, when the driver presses the brake pedal, the electronic control unit 5 detects the rapid braking from the vehicle speed sensor and the brake pedal position sensor 3 from the vehicle speed sensor 1. When braking at a high speed of 100 km / H or more (for example, the set value is 100 km / H), the electronic control unit 5 contacts the forward rotation switch 7a of the relay 7 to turn on the power of the battery 8. The motor 6 is rotated forward by the start switch 9 to the motor 6. The rack gear 11 is pushed to the right in response to the forward rotation of the motor 6, and the lower end of the pivot member 13 is rotated. It is rotated and pushed to the left side, and the wire 14 pulls the movable member 15 by the movement of the pivot member 13 to the left side. As the movable member 15 descends, the link member 18 is moved. While descending, the left and right sides are opened and the shoe 16 is pushed to the drum 17 to pressurize it. The parking brake is activated.

Therefore, since the parking brake is operated at the same time during the operation of the foot brake by the driver during high speed driving, the braking force is doubled and the braking performance is improved.

At this time, when the driver accelerates by stepping on the accelerator pedal again when braking is terminated, the electronic control unit 5 is recognized by the accelerator pedal position sensor 2 and the reverse switch 7b is applied to the relay 7. The motor 6 is reversely rotated by contacting to operate in the opposite direction to release the parking brake.

When the vehicle stops after slow motion or stops during signal waiting, the electronic control unit 5 detects that the vehicle speed and brake pedal position detection sensor 3 are braking from the vehicle speed sensor 1. At this time, if the vehicle speed is a deceleration state greater than 0 km / H, the vehicle is in an inoperative state, and if the vehicle speed is zero, the electronic control unit 5 relays the relay 7 with a slight delay time. Parking brake is operated in the same manner as in high-speed driving by contacting the forward rotation switch 7a.

The braking continues even if the driver takes his foot off the brake pedal.

Therefore, the parking brake is operated at the same time during the operation of the foot brake by the driver in the pause state while driving, and thus the braking state is maintained. Thus, even if the driver takes his foot off the brake pedal, the braking is continued to reduce fatigue.

At this time, when the driver accelerates by stepping on the accelerator pedal again when braking is terminated, the electronic control unit 5 is recognized by the accelerator pedal position sensor 2 and the reverse switch 7b is applied to the relay 7. The motor 6 is reversely rotated by contacting to operate in the opposite direction to release the parking brake.

On the other hand, during parking, the electronic control unit 5 detects the off state of the start switch 9 and immediately contacts the forward rotation switch 7a of the relay 7 to park the vehicle in the same manner as in high-speed driving or pause. The brake is activated.

Therefore, when parking, the driver does not need to operate the operation lever to operate the parking brake, and there is no need to provide an operation lever separately, so that the living space in the vehicle can be expanded.

As described above, according to the braking device for a vehicle according to the present invention, the parking brake can be automatically operated during high-speed driving or pause, so that the braking property can be improved or the driver's convenience can be achieved. Since it is not necessary to operate the driver's convenience, it is possible to secure a wider living space in the cabin according to the abolition of the operation lever, thereby improving the occupability of the occupants.

Claims (2)

The vehicle's behavior during driving is controlled by the vehicle speed sensor (1), the accelerator pedal position sensor (2), and the brake pedal position sensor (3). Control means for judging states and determining operation and release of the parking brake in each case; Parking brake operating means for operating the brake mechanism of the rear wheel in accordance with a control signal output from the control means; In the braking device of a vehicle comprising a forward / reverse rotation drive means for adjusting the operation and release operation of the parking brake operating means, The parking brake operating means includes a pinion gear 10 installed on a drive shaft of the motor 6 and a rack gear 11 engaged with the pinion gear 10 to perform a linear reciprocating motion according to the rotation direction of the pinion gear 10. ) And a pivot member 13 coupled to the rack gear 11 so as to rotate according to the linear motion of the rack gear 11, and the operating force applied to the pivot member 13 to the brake mechanism of the rear wheel. And a link member 18 provided between the wire 14 arranged to extend in a long way, and the shoe 16 of the brake mechanism of the rear wheel while being engaged with the movable member 15 connected to the wire 14. Braking system of automobiles. The control means according to claim 1, wherein the control means includes a timer (4), and the control means detects that the control means is stopped from the vehicle speed sensor (1) and the brake pedal position sensor (3) when the vehicle is temporarily stopped while driving on a traffic jam. The operation signal is applied to the motor 6 of the forward / reverse rotation driving means with a predetermined delay time, thereby excluding unnecessary operations of the forward / reverse rotation driving means and the parking brake operating means, respectively, during frequent braking. Braking system for cars.