CN105711567A - Automatic parking brake device of automobile - Google Patents

Abstract

The invention discloses an automatic handbrake device for automobiles, which comprises a brake (31), a pull wire (32) and a handbrake lever (36). A rotating disk is connected and fixed on the handbrake lever (36), and one end of the pullwire (32) is fixed on the rotating disk. On, the other end is connected with brake (31), and described automobile automatic parking brake device also comprises reduction gear (33), driven gear (34) and motor (38), and wherein motor (38) is connected with reduction gear (33) When the reduction gear (33) is driven to rotate, the driven gear (34) meshes with the reduction gear (33), and the driven gear (34) is configured to engage with the rotary disk. Through the automobile automatic handbrake device of the present invention, the driving experience is better and the driving safety is higher.

Description

Automobile automatic handbrake device

technical field

The invention relates to the technical field of motor vehicles, in particular to an automatic hand brake device for motor vehicles.

Background technique

Car hand brakes, also known as auxiliary brakes, are generally used when parking, especially when parking on slopes, to prevent cars from sliding uncontrollably and avoid traffic accidents. At present, most cars and light vehicles are equipped with hand brakes, which generally act on the rear wheels, and usually adopt steel wires to be connected to the rear brakes to brake the car.

For example accompanying drawing 1 has provided a kind of common handbrake device in the prior art, and it mainly comprises brake 21, steel wire stay wire 22, the rotating disc with rotating shaft 23, ratchet 24, ratchet 25, handbrake lever 26 and handbrake button 27. The handbrake lever 26 is connected and fixed with the rotating disc, and one end of the steel wire 22 is fixed on the rotating disc, and the other end is connected with the brake 21, and the brake 21 can be a disc brake or a drum brake. When the driver wants to pull up the handbrake, he pulls up the handbrake lever 26 by holding the grip part of the handbrake lever 26, and the handbrake lever 26 drives the rotating disk to rotate around the rotating shaft 23, so that the steel wire 22 is pulled forward, thereby braking. The driving force is transmitted to the brake 21. For example, when the brake 21 is a drum brake, the engagement of the shoe and the friction plate in the brake drum is used to generate a braking force, thereby keeping the vehicle stationary. After the automobile is braked in place, the ratchet 25 connected with the hand brake lever 26 is stuck on the ratchet wheel 24 to prevent the hand brake lever 26 from returning. When the driver wants to release the handbrake, he holds the handbrake lever 26 and presses the handbrake button 27 arranged at the end of the handbrake lever 26, wherein the handbrake button 27 is mechanically connected with the pawl 25 for releasing the connection between the pawl 25 and the ratchet wheel 24. engagement, when the pawl 25 is disengaged from the ratchet wheel 24 , the driver pushes the handbrake lever 26 to rotate downward around the rotating shaft 23 , thereby releasing the braking force acting on the brake 21 through the steel wire 22 .

However, in order to make the handbrake device play the role of auxiliary braking, in addition to normal driving behavior (such as starting, parking), the driver needs to operate the handbrake lever additionally, such as pulling up the handbrake lever, pressing the handbrake button, pushing down Handbrake lever, etc., and in order to ensure safety, these operations are frequent, and operations related to the handbrake lever are required when the car starts, stops, and waits for a green light. In addition, when pulling up the handbrake lever, it is necessary to overcome the restoring force of the spring and the resistance of the steel wire, so this operation is laborious and affects the driving experience.

Further, since whether to use the auxiliary brake depends on the driver's voluntary operation, it is possible that the driver forgets out of negligence or deliberately does not pull the handbrake or does not release the handbrake out of trouble. Failure to pull the handbrake will cause the car to roll, Endangering safety, driving without releasing the handbrake will cause brake wear and damage to the vehicle. Therefore, the existing hand brake device does not provide sufficient driving safety due to insufficient convenience of operation.

Contents of the invention

The purpose of the present invention is to provide a simple and convenient automatic hand brake device for automobiles.

The object of the present invention is also to provide an automatic handbrake device for a car that is free from the driver's operation, which can free the driver's hands and provide better driving experience.

The object of the present invention is also to provide a more secure automatic handbrake device for automobiles, which can avoid the phenomenon of slipping or forgetting to release the handbrake caused by the driver's negligence.

In order to achieve the above-mentioned purpose or one of the purposes, the technical solution of the present invention is as follows:

An automobile automatic handbrake device, comprising a brake, a pull wire and a handbrake lever, a rotating disk is connected and fixed on the handbrake lever, one end of the pull wire is fixed on the rotating disk, and the other end is connected with the brake. The automobile automatic handbrake device also includes a reduction gear, A driven gear and a motor, wherein the motor is connected with the reduction gear for driving the reduction gear to rotate, the driven gear is meshed with the reduction gear, and the driven gear is configured to engage with the rotating disk.

According to a preferred embodiment of the present invention, it also includes a handbrake button and an engagement clip, wherein the engagement clip is arranged on the rotating disk, and the handbrake button is mechanically connected with the engagement clip for controlling the engagement or disengagement of the engagement clip with the driven gear.

According to a preferred embodiment of the present invention, the driven gear 34 is a combined gear, that is, two gears are connected in parallel through a fixed shaft, wherein one gear in the combined gear is used to mesh with the reduction gear, and the combined gear The other gear in the body gear is used to engage with the engagement clip.

According to a preferred embodiment of the present invention, it also includes a pull handbrake controller. The pull handbrake controller has a contact piece, which corresponds to the first contact arranged on the rotating disk. When the handbrake is pulled up to the position, the first contact It is in contact with the contact piece of the handbrake controller.

According to a preferred embodiment of the present invention, the pull handbrake controller includes a bracket and a spring, and the spring is arranged between the bracket and the main body of the pull handbrake controller.

According to a preferred embodiment of the present invention, the hand brake controller also includes an adjusting bolt and an adjusting nut, the contact sheet is connected with the main body of the hand brake controller through the adjusting bolt and the adjusting nut, and can be adjusted by using the adjusting bolt and the adjusting nut. The distance between the contact piece and the main body that pulls the handbrake controller.

According to a preferred embodiment of the present invention, it also includes a loose handbrake controller, which has a contact plate, and the contact piece of the handbrake loose controller corresponds to the second contact arranged on the handbrake lever. The two contacts are in contact with the contacts of the hand brake controller.

According to a preferred embodiment of the present invention, it also includes a control board, which includes No. 1 relay, No. 2 relay, No. 3 relay, No. 4 relay, No. 5 relay, No. 6 relay, No. 7 relay and No. 8 relay , wherein No. 2 relay and No. 3 relay are five-pin relays, and the remaining six relays are four-pin relays.

According to a preferred embodiment of the present invention, the automobile automatic handbrake device further includes: the total power supply of the whole vehicle after the engine is turned off, the total power supply of the whole vehicle after the engine is started, the automatic driving switch, the brake pedal control switch, and the gear handball button to control the handbrake switch, I gear switch, reverse gear switch, gear handball button to control the release of the handbrake switch and the clutch pedal to control the release of the handbrake switch; wherein, the driving automatic switch is disconnected when the car is running, connected when the car stops, and the brake The pedal control switch is turned on after the brake pedal is stepped on, and disconnected after it is released. The handbrake switch is controlled by the gear handball button and the handbrake switch is controlled by the gear handball button. The handbrake switch is controlled by a button respectively. The button controls the handbrake switch to be disconnected, and it is turned on after it is released. Bit trigger, when the I gear is engaged, the I gear switch is turned on, when the I gear is removed, the I gear switch is turned off, when the reverse gear is engaged, the reverse gear switch is turned on, when the reverse gear is removed When the reverse gear switch is turned off, the handbrake switch is turned off after the clutch pedal is pressed down and turned on after the clutch pedal is released;

One terminal of the handbrake controller is connected to the negative pole of the main power supply, and the other terminal is connected to pin 2 of the No. 1 relay. When the handbrake is pulled up, the first contact contacts the contact piece of the handbrake controller. The controller disconnects the pin 2 of the No. 1 relay from the negative pole of the main power supply. Otherwise, when the first contact does not touch the contact piece of the handbrake controller, the pin 2 of the No. 1 relay remains connected to the negative pole of the main power supply. state;

One terminal of the loose handbrake controller is connected to the negative pole of the main power supply, and the other terminal is connected to the gear handball button to control the handbrake release switch and the clutch pedal to control the handbrake release switch. At this time, release the handbrake controller so that the gear handball button controls the release of the handbrake switch and the clutch pedal controls the release of the handbrake switch. , the gear handball button controls the release of the handbrake switch and the clutch pedal controls the release of the handbrake switch to maintain a normal connection with the negative pole of the total power supply;

One terminal of the motor is connected to pin 4 of relay No. 5 and pin 4 of relay No. 7, and the other terminal of the motor is connected to pin 4 of relay No. 6 and pin 4 of relay No. 8;

After the engine is turned off, connect the positive pole of the vehicle's total power supply, the driving automatic switch, the brake pedal control switch, and pin 1 of the No. Connection, gear handball button controls the other end of the handbrake switch to connect pin 3 of the second relay, pin 3 of the third relay, one end of the I gear switch and one end of the reverse gear switch, the I gear The other end of the position switch and the other end of the reverse gear switch are both connected to pin 1 of the No. Pin 2 is connected, the other end of the handbrake switch controlled by the gear handball button and the other end of the handbrake switch controlled by the clutch pedal are connected to the other terminal of the handbrake controller; the negative pole of the total power supply is connected to the second relay Pin 2, pin 2 of relay No. 3, pin 1 of relay No. 7 and pin 2 of relay No. 8 are connected;

In the control board, pin 1 of relay No. 1 is connected to pin 3 of relay No. 1, pin 1 of relay No. 1 is connected to pin 4 of relay No. 2, and pin 4 of relay No. 1 is connected to pin 4 of relay No. 5. Pin 1 of relay No. 1 is connected, pin 4 of relay No. 1 is connected to pin 3 of relay No. 6; pin 1 of relay No. 3 is connected to pin 2 of relay No. The pin 1 of the relay is connected; the pin 1 of the No. 4 relay is connected with the pin 3 of the No. 4 relay, the pin 4 of the No. Pin 1 of relay No. 5 is connected; pin 1 of relay No. 5 is connected to pin 3 of relay No. 5; pin 2 of relay No. 5 is connected to pin 1 of relay No. 6; pin 1 of relay No. The pin 2 of the No. 6 relay is connected; the pin 1 of the No. 7 relay is connected with the pin 2 of the No. 7 relay; the pin 1 of the No. 8 relay is connected with the pin 3 of the No. 8 relay.

According to a preferred embodiment of the present invention, the "handbrake release switch controlled by the clutch pedal" is replaced by the "handbrake release switch controlled by the accelerator pedal", and the "handbrake release switch controlled by the clutch pedal is disconnected after the clutch pedal is depressed, and connected after the release" It is replaced by "the accelerator pedal controls the handbrake switch to be turned on after the accelerator pedal is stepped down, and is turned off after the accelerator pedal is released".

It can be seen from the technical solution of the present invention that the present invention proposes an automatic handbrake device for a car that does not require manual operation by the driver. , that is, to automatically realize the operation of pulling the handbrake or releasing the handbrake while completing the normal driving behavior, thereby reducing the driver's operating actions, freeing the driver's hands or feet, and thus having a better driving experience. There will be no obvious fatigue when driving in urban road conditions. Since the operation of pulling the handbrake and releasing the handbrake is automatically completed, it avoids unsafe problems caused by human error or forgetting to operate, and effectively improves safety.

According to the automobile automatic handbrake device of the present invention, the button on the gear handle can be used to control the degree of pulling the handbrake and loosening the handbrake.

In addition, the automobile automatic handbrake device of the present invention can be simply combined with existing manual transmission and automatic transmission automobiles, without the need to make too many changes to the original automobile handbrake device, and the automobile automatic handbrake device can be used conveniently at any time It is equivalent to adding an automatic function on the basis of the original manual handbrake device. The automatic operation and manual operation do not affect each other, so it has high applicability.

Description of drawings

Fig. 1 is the schematic diagram of the automobile handbrake device of prior art;

Fig. 2 is the schematic diagram of the four-pin relay used by the automobile automatic handbrake device according to an embodiment of the present invention;

Fig. 3 is the schematic diagram of the five-pin relay used by the automobile automatic handbrake device according to an embodiment of the present invention;

Fig. 4 is the schematic diagram of the control panel of the automobile automatic handbrake device according to the embodiment of the present invention;

Fig. 5 is the schematic diagram of the electronic circuit part of the automobile automatic handbrake device according to the embodiment of the present invention;

Fig. 6 is the schematic diagram of the mechanical structure part of the automobile automatic handbrake device according to the embodiment of the present invention;

Fig. 7 shows the preferred implementation of the pull handbrake controller of the automobile automatic handbrake device according to an embodiment of the present invention; And

Fig. 8 is a schematic diagram of an electronic circuit part of an automatic handbrake device for an automobile according to another embodiment of the present invention.

detailed description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements. In addition, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a comprehensive understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.

First introduce the control board and the relay that the present invention uses below. Wherein, FIG. 2 is a schematic diagram of a four-pin relay used in an automatic handbrake device according to an embodiment of the present invention; FIG. 3 is a schematic diagram of a five-pin relay used in an automatic handbrake device according to an embodiment of the present invention.

The working principle of the four-pin relay:

The four-pin relay is an existing finished relay, which can be easily obtained from the market. It has four pins, namely pin 1, pin 2, pin 3 and pin 4, as shown in FIG. 2 . Among them, pin 1 and pin 4 are input pins and output pins respectively, pin 2 and pin 3 are control pins, and the input pins and output pins are connected or connected according to different connection modes of the control pins. Disconnect, specifically:

1) When pin 2 is connected to the negative pole of the power supply (-) and pin 3 is connected to the positive pole of the power supply (+), inside the relay, pin 1 is connected to pin 4, so if the pin used as an input pin If pin 1 is connected to the positive pole of the power supply, then the positive pole will be connected to the pin 4 as the output pin. If the pin 1 as the input pin is connected to the negative pole of the power supply, then the negative pole will be connected to the pin 4 as the output pin. ;

2) When pin 2 is disconnected from the power supply or when pin 3 is disconnected from the power supply, inside the relay, pin 1 is disconnected from pin 4, so there is no electrical output at pin 4 which is the output pin .

The working principle of the five-pin relay:

The five-pin relay is also an existing relay product, which can be easily obtained from the market. It has five pins, namely pin 1, pin 2, pin 3, pin 4 and pin 5, as shown in the figure 3. Among them, pin 1 is an input pin, pin 4 and pin 5 are output pins, pin 2 and pin 3 are control pins, and the input pins and different output pins are realized according to different connection methods of the control pins. The connection or disconnection of the pin, specifically:

1) When pin 2 is connected to the negative pole of the power supply (-) and pin 3 is connected to the positive pole of the power supply (+), inside the relay, pin 1 is connected to pin 5 and disconnected from pin 4, Therefore, if pin 1, which is an input pin, is connected to the positive pole of the power supply, then the positive pole is connected to pin 5, which is an output pin, and there is no electrical output at pin 4, which is an output pin. If it is used as an input pin If the pin 1 of the power supply is connected to the negative pole of the power supply, then the negative pole is connected to the pin 5 as the output pin, and there is no electrical output at the pin 4 as the output pin;

2) When pin 2 is disconnected from the power supply or when pin 3 is disconnected from the power supply, inside the relay, pin 1 is connected to pin 4 and disconnected from pin 5, so if it is used as an input pin The pin 1 of the power supply is connected to the positive pole of the power supply, then the positive pole is connected to the pin 4 which is the output pin, and there is no electrical output at the pin 5 which is the output pin. If the pin 1 which is the input pin is connected to the power supply If the negative pole is connected, then the negative pole is connected to the pin 4 which is the output pin, and there is no electrical output at the pin 5 which is the output pin.

Fig. 4 is a schematic diagram of a control panel of an automatic handbrake device for an automobile according to an embodiment of the present invention. As shown in the figure, the control board of the automatic handbrake device of a car mainly includes eight relays, namely relay No. 1, relay No. 2, relay No. 3, relay No. 4, relay No. 5, relay No. 6, relay No. 7 and relay No. 8. Relays, wherein No. 2 relay and No. 3 relay are five-pin relays, and the remaining six relays are four-pin relays. Here, the eight relays can be divided into two groups, No. 1, No. 2, No. 3, No. 5 and No. 6 relays are the hand brake relay group, and No. 4, No. 7 and No. 8 relays are the hand brake relay group. The connection and usage of each relay will be explained in detail later.

In the present invention, the pin 5 of the five-pin relay is idle or not used, that is, the pin 5 of the five-pin relay is not connected to other relays or devices other than the five-pin relay.

In the present invention, two five-pin relays are used, which are No. 2 relay and No. 3 relay. For relay No. 2, pin 2 is connected to the negative pole, pin 1 is connected to the positive pole of the total power supply of the whole vehicle after the engine is turned off (combined with Figure 5), and pin 3 is connected to the positive pole of the total power supply of the whole vehicle after the engine is started. When pin 2 is connected to the negative pole, pin 1 is connected to the positive pole of the vehicle's total power supply after the engine is turned off, and pin 3 is connected to the positive pole of the vehicle's total power supply after the engine is started, pin 1 is connected to pin 5. When the power at pin 1 is connected to pin 5; and when pin 3 is disconnected from the positive pole of the vehicle's total power supply after the engine starts, pin 1 and pin 4 are connected, and the power at pin 1 is connected. Follow through to pin 4. For relay No. 3, pin 2 is connected to the negative pole, pin 1 is connected to the negative pole, and pin 3 is connected to the positive pole of the total power supply of the whole vehicle after the engine starts. When the pin 2 is connected to the negative pole, the pin 1 is connected to the negative pole, and the pin 3 is connected to the positive pole of the total power supply of the whole vehicle after the engine starts, the pin 1 is connected to the pin 5, and the power at the pin 1 is connected. Connect to pin 5; and when pin 3 is disconnected from the positive pole of the vehicle's total power supply after the engine starts, pin 1 and pin 4 are connected, and the power at pin 1 is relayed to pin 4.

Here, pin 2 of the No. 2 relay and No. 3 relay is normally connected to the negative pole, and pin 3 is connected to the positive pole of the total power supply of the whole vehicle after the engine starts.

Below in conjunction with accompanying drawing 5,6 describe in detail the electronic circuit part and the mechanical structure part of the automobile automatic handbrake device of the first embodiment of the present invention, the first embodiment of the present invention is designed at the manual transmission automobile with pedal clutch, Wherein FIG. 5 is a schematic diagram of an electronic circuit part of an automatic handbrake device for an automobile according to an embodiment of the present invention; FIG. 6 is a schematic diagram of a mechanical structure part of an automatic handbrake device for an automobile according to an embodiment of the present invention.

First of all, in terms of mechanical structure, the automobile automatic hand brake device mainly includes a brake 31, a pull wire 32, a reduction gear 33, a driven gear 34, an engagement clip 35, a hand brake lever 36, a hand brake button 37, and a motor 38, wherein the brake 31, the pull wire 32, Handbrake lever 36, handbrake button 37 all can be the known device on the handbrake device of prior art, only need to set up reduction gear 33, driven gear 34, engaging clip 35, motor 38 on it. Specifically, a rotating disk is connected and fixed on the handbrake lever 36. One end of the pull wire 32 is fixed on the rotating disk, and the other end is connected to the brake 31. The brake 31 can be any existing brake such as a disc brake or a drum brake. One side of the rotating disk (for example, the side near the co-driver) is additionally provided with a reduction gear 33, a driven gear 34 and a motor 38, wherein the motor 38 is connected with the reduction gear 33 for driving the reduction gear 33 to rotate, and the driven gear 34 and The reduction gear 33 is meshed, and the engaging clip 35 is fixedly arranged on the rotating disk, and the engaging clip 35 can be engaged or disengaged with the driven gear 34. When the engaging clip 35 is engaged with the driven gear 34, the rotating disk can be engaged with the driven gear 34. The gears 34 rotate together around the axis of the driven gear 34 , and when the engagement clip 35 is disengaged from the driven gear 34 , the rotating disk can rotate around its own axis. The handbrake button 37 is mechanically connected with the engagement clip 35, and is used to control the engagement or disengagement of the engagement clip 35 and the driven gear 34. When no pressing force is applied on the handbrake button 37, the engagement clip 35 and the driven gear 34 are in an engaged state. When the driver presses the handbrake button 37, the engagement clip 35 can be lifted upwards to disengage from the driven gear 34. Here, the handbrake button 37 can control the engagement clip 35 using known technical means in the prior art, for example, the same technical means as the handbrake button 27 controls the ratchet 25 in the existing automobile handbrake device shown in FIG. 1 .

According to a preferred embodiment of the present invention, the driven gear 34 can be a combined gear, that is, two gears are connected in parallel through a fixed shaft. meshing, another gear is used to engage with the engagement clip 35.

When the motor 38 rotated in the forward direction, the rotational torque of the motor 38 drove the driven gear 34 to reversely rotate through the reduction gear 33, and when the driver did not press the handbrake button 37 (that is, the engagement clip 35 and the driven gear 34 were in engagement) state), the rotating disk and the handbrake lever 36 are driven to reversely rotate together, thereby realizing the operation of pulling the handbrake. When the motor 38 reversely rotated, the rotational torque of the motor 38 drove the driven gear 34 to rotate forward through the reduction gear 33, and when the driver did not press the handbrake button 37 (that is, the engagement clip 35 was engaged with the driven gear 34 state), the rotating disk and the handbrake lever 36 are driven to rotate forward together, thereby realizing the handbrake release operation.

In the state where the engagement clip 35 is engaged with the driven gear 34 , the power of the motor 38 can be used to realize the operation of pulling the hand brake and releasing the hand brake, so that manpower is not required to operate the hand brake lever 36 . In order to realize the manual operation of the handbrake device, the driver can press the handbrake button 37. At this time, the engaging clip 35 is disengaged from the driven gear 34. The driver can manually pull up or push down the handbrake lever 36, and the pull wire 32 is driven by the rotating disc. The braking and releasing of the brake 31 are performed manually. It can be seen that the automobile automatic handbrake device of the present invention can be operated by a motor or manually without affecting each other, so it has high safety. For example, when the motor operation fails due to a circuit failure, it can be conveniently operated manually.

Below in conjunction with Fig. 5 and 6, introduce how the automobile automatic handbrake device of the present invention combines with the driving behavior of automobile (such as parking, starting, flameout, etc.) to realize automatic operation. This effect is mainly through the control board comprising eight relays, The combination of various switch devices and the original circuit system of the car is realized. Before the introduction, first introduce the pull handbrake controller 60 and the loose handbrake controller 70 directly connected with the mechanical structure of the automatic handbrake device of the automobile. The connection or disconnection of a circuit.

One pole of the pull handbrake controller 60 is connected to the ground (the negative pole of the total power supply), and the other pole is connected to the pin 2 of the No. 1 relay (described below). The pull handbrake controller 60 has a contact piece, which is connected to the Corresponding to the first contact 301 on the top, when the handbrake is in place, the first contact 301 is in contact with the contact piece of the handbrake controller 60. At this time, the handbrake controller 60 is pulled so that the pin 2 of the No. 1 relay is connected to the ground ( total power supply negative pole) is disconnected, otherwise, when the first contact 301 is not in contact with the contact sheet of the handbrake controller 60, the pin 2 of the No. 1 relay remains in the normally connected state with ground (total power supply negative pole).

Fig. 7 shows the preferred embodiment of the pull hand brake controller of the automobile automatic hand brake device according to an embodiment of the present invention. According to this preferred embodiment, the pull hand brake controller 60 includes a bracket 61, a spring 62, a contact piece 63, an adjusting bolt 64 and adjusting nut 65. A spring 62 is arranged between the bracket 61 and the controller main body, so that when the first contact 301 on the rotating disk hits the contact piece 63, the spring 62 acts as a buffer to avoid damage to the handbrake controller 60 and the rotating disk. Further, the contact piece 63 is connected with the controller main body through the adjusting bolt 64 and the adjusting nut 65, and the distance between the contact piece 63 and the fixed controller main body can be adjusted by using the adjusting bolt 64 and the adjusting nut 65, thus the automatic adjustment of the automobile can be adjusted. The stroke of the handbrake device pulling the handbrake, for example, when the contact piece 63 is adjusted so that it is far away from the controller body, the contact piece 63 is closer to the first contact 301 on the rotating disk, so the rotating disk passes through a shorter stroke. The contact piece 63 can be contacted, thereby triggering the disconnection of the pin 2 of the No. 1 relay from the negative pole earlier. It should be noted that the adjusting bolt and the adjusting nut may also be arranged between the rotating disk and the first contact 301 , and the above stroke is controlled by adjusting the position of the first contact 301 .

One pole of the hand brake controller 70 is connected to the ground (the negative pole of the total power supply), and the other pole is connected to the gear handball button to control the hand brake switch and the clutch pedal to control the hand brake switch (described below). The hand brake controller 70 has contacts, The contact piece corresponds to the second contact 302 arranged on the handbrake lever 36. When the handbrake is released in place, the second contact 302 is in contact with the contact piece of the handbrake controller 70. At this time, the handbrake controller 70 is released so that the gear is handballed. The button controls the release of the handbrake switch and the clutch pedal controls the release of the handbrake switch and the ground (the negative pole of the total power supply), otherwise, when the second contact 302 is not in contact with the contact piece of the release of the handbrake controller 70, the gear handball button controls the release of the handbrake. The handbrake switch and the clutch pedal are controlled to release the handbrake switch and the ground (the negative pole of the total power supply) is normally connected.

It should be understood that the release handbrake controller 70 can have the same settings as the pull handbrake controller 60, such as including brackets, springs, contacts, adjustment bolts and adjustment nuts, so that the second contact 302 and the release handbrake controller 70 can be realized. The impact between the contacts of the handle is buffered, and the release stroke of the hand brake lever can be adjusted. The principle is the same as that of pulling the hand brake controller 60, so it will not be repeated.

Referring to FIG. 6 , one pole of the motor 38 is connected to the pin 4 of the fifth relay and the pin 4 of the seventh relay, and the other pole of the motor 38 is connected to the pin 4 of the sixth relay and the pin 4 of the eighth relay.

Now refer to Fig. 5 to describe the electronic circuit of the automobile automatic parking brake device according to an embodiment of the present invention, comprise the total power supply of the whole car after the engine is turned off, the total power supply of the whole car, fuse, conjoined main switch and Ground (total power supply negative pole), they are known on existing automobile, and wherein the total power supply of whole car guarantees after engine stalls and can provide electric power for whole car after engine is turned off, and the total power supply of whole car is in the engine after engine starts. It provides power for the whole car after starting. It should be noted that the total power supply of the whole car still supplies power for the whole car after the engine is turned off after the engine is turned off. After the engine is turned off after starting, the total power supply of the whole vehicle and the total power supply of the whole vehicle after the engine is started are all supplying power to the whole vehicle. Here, the conjoined main switch is in the normally on state, and the ground is connected to the negative pole of the main power supply.

The electronic circuit of the present invention also includes an automatic driving switch, a brake pedal control switch, a handbrake switch controlled by a gear handball button, a gear switch for I gear, a reverse gear switch, a handbrake switch and a clutch pedal controlled by a handball button for gear positions Control and release the handbrake switch. Among them, the automatic driving switch can be realized by using a speed sensor. The automatic driving switch is disconnected when the vehicle is running and connected when the vehicle stops, which is conducive to improving the safety of the system. Through the automatic driving switch, it will not trigger when the vehicle is running Any operation of the handbrake. It should be noted that in this embodiment of the present invention, an automatic driving switch may not be provided, and stable safety has been achieved through other electronic circuit designs of this embodiment. This automatic driving switch is equivalent to a master control switch, for further Designed for increased safety. The brake pedal control switch is arranged at the brake pedal, and is turned on when the brake pedal is stepped on, and turned off after the brake pedal is released. The realization of the switch can be similar to that of the brake light switch. The handbrake switch is controlled by the gear handball button and the handbrake switch is controlled by the gear handball button. The handbrake switch is set on the gear handball, and the two switches are turned on and off by pressing the two specially designed buttons on the gear handball respectively. , wherein for the gear handball button to control the handbrake switch, when the button one (or control the handbrake button) is pressed, the switch is disconnected, and the switch is turned on after it is released; for the gear handball button to control the handbrake switch, when The switch is turned on after pressing button 2 (or the control release handbrake button), and turned off after the button is released. The I gear switch and the reverse gear switch are triggered by the gear, and its implementation method can be similar to that of the gear light switch. When the I gear is engaged, the I gear switch is connected, and when the I gear is removed The I gear switch is disconnected; when the reverse gear is engaged, the reverse gear switch is connected, and when the reverse gear is taken off, the reverse gear switch is disconnected. The clutch pedal controls the release of the handbrake switch, which is set at the clutch pedal. When the clutch pedal is stepped down, the switch is disconnected, and it is connected after the clutch pedal is released.

The connection relationship of the electronic circuit is as follows:

After the engine is turned off, the positive pole, fuse, conjoined main switch, driving automatic switch, brake pedal control switch, and pin 1 of the No. 2 relay are connected in sequence; after the engine is started, the positive pole, fuse and conjoined One end of the main switch and the handbrake switch controlled by the gear handball button are connected sequentially, and the other end of the handbrake switch controlled by the gear handball button is respectively connected to pin 3 of the second relay, pin 3 of the third relay, and the I gear switch One end of the switch and one end of the reverse gear switch, the other end of the I gear switch and the other end of the reverse gear switch are all connected to pin 1 of the No. 4 relay. The above is the connection relationship of the positive side of the control board.

The handbrake controller 60 is connected to the pin 2 of the No. 1 relay; one end of the handbrake switch controlled by the gear handball button and one end of the handbrake switch controlled by the clutch pedal are connected to the pin 2 of the No. 4 relay, and the gear handball button controls The other end of the handbrake release switch and the other end of the handbrake release switch controlled by the clutch pedal are connected to one end of the handbrake release controller 70; Pin 1 is connected to pin 2 of the No. 8 relay, that is, these pins are normally connected to the negative pole. The above is the connection relationship of the negative side of the control board.

One pole of the motor 38 is connected to the pin 4 of the No. 5 relay and the pin 4 of the No. 7 relay, and the other pole of the motor 38 is connected to the pin 4 of the No. 6 relay and the pin 4 of the No. 8 relay. The above is the connection relationship of the output side of the control board.

In the control board, pin 1 of relay No. 1 is connected to pin 3 of relay No. 1, pin 1 of relay No. 1 is connected to pin 4 of relay No. 2, and pin 4 of relay No. 1 is connected to pin 4 of relay No. 5. Pin 1 of relay No. 1 is connected, pin 4 of relay No. 1 is connected to pin 3 of relay No. 6; pin 1 of relay No. 3 is connected to pin 2 of relay No. The pin 1 of the relay is connected; the pin 1 of the No. 4 relay is connected with the pin 3 of the No. 4 relay, the pin 4 of the No. Pin 1 of relay No. 5 is connected; pin 1 of relay No. 5 is connected to pin 3 of relay No. 5; pin 2 of relay No. 5 is connected to pin 1 of relay No. 6; pin 1 of relay No. The pin 2 of the No. 6 relay is connected; the pin 1 of the No. 7 relay is connected with the pin 2 of the No. 7 relay; the pin 1 of the No. 8 relay is connected with the pin 3 of the No. 8 relay.

Describe in detail below with reference to accompanying drawing 5 the operating principle and the technical effect achieved of the automobile automatic handbrake device according to an embodiment of the present invention:

Effect 1——The handbrake is automatically pulled up when the engine is turned off: When the car is moving, the driver depresses the clutch pedal and the brake pedal. After the car speed drops to zero, the driver turns off the car engine, and the handbrake is automatically pulled when the engine is turned off. rise;

Working principle 1: When the speed of the car drops to zero and the brake pedal is stepped on, after the engine is turned off, the positive pole of the total power supply of the whole car (hereinafter referred to as the positive pole of A) is connected to 1 of the second relay; when the car engine is turned off, the engine After starting, the positive pole of the total power supply of the whole vehicle (hereinafter referred to as B positive pole) no longer supplies power, so the B positive pole electricity at pin 3 of No. 2 relay, No. 3 relay, and No. 4 relay is cut off. According to the working principle of the relay, At this time, the positive electrode of A at the pin 1 of the No. 2 relay is relayed to the pin 4 of the No. 2 relay, and then to the pin 1 of the No. Pin 2 is connected to the handbrake controller 60. When the handbrake is released, the pin 2 of the No. 1 relay is connected to the negative pole of the total power supply through the handbrake controller 60 (see the principle of pulling the handbrake controller 60 earlier), so a The positive electrode A at pin 1 of relay No. 1 is relayed to pin 4 of relay No. 1, and then to pin 1 of relay No. 5, pin 3 of relay No. 5, and pin 3 of relay No. 6; As mentioned above, the positive pole B of pin 3 of relay No. 3 is cut off, and the negative pole of pin 1 of relay No. 3 is relayed to pin 4 of relay No. Pin 1, pin 2 of relay No. 6, and pin 2 of relay No. 5; for relay No. 5, pin 3 is positively charged, and pin 2 is negatively charged. According to the working principle of the relay, the fifth relay The positive electricity at the pin 1 of the relay is connected to the pin 4 of the fifth relay, thereby supplying positive electricity to a connection terminal of the motor 38; at this time, for the No. six relay, the pin 3 has positive electricity, and the pin 2 with negative pole electricity, therefore, the negative pole electricity at the pin 1 place of No. 6 relay is relayed to the pin 4 of No. 6 relay, thus supplies negative pole electricity to another connection end of motor 38; At this moment, motor 38 forward Rotate, drive the automatic handbrake device of the automobile through the reduction gear 33 and the driven gear 34 to realize the handbrake operation; after the handbrake is pulled in place, the contact 301 contacts the contact piece of the handbrake controller 60, causing the pin 2 of the No. 1 relay to contact the negative pole Disconnect, and then the positive electricity is no longer connected to the pin 4 of the No. 1 relay, and then no longer supplies the positive power to the No. 5 relay and No. 6 relay, resulting in the pin 4 of the No. 5 relay and the pin 4 of the No. 6 relay. No longer supply positive electricity and negative electricity, so motor 38 stalls, and automobile automatic handbrake device keeps pulling handbrake state; It is possible to control where the handbrake is drawn by adjusting the aforementioned adjustment bolt 64 and adjustment nut 65 , or by adjusting the pull wire 32 .

Effect 2——Automatically release the handbrake when starting: the car is at a standstill after the engine is started, the driver steps down the clutch pedal, puts on I gear or reverse gear, and releases the handbrake automatically when the clutch pedal is loosened (or the accelerator is added at the same time);

Working principle 2: After the engine starts, without using the gear handball button to control the handbrake switch, the positive electrode of B is relayed to the pin 3 of the second relay and the pin 3 of the third relay, because the second relay The pin 2 of the relay No. 2 and the pin 2 of the No. 3 relay are always connected to the negative pole, so according to the working principle of the five-pin relay, the electricity at the pin 1 of the No. 2 relay and the pin 1 of the No. Pin 5 (at this time, it does not matter whether the brake pedal is pressed or not), then the pins of the No. 1 relay, No. 5 relay and No. 6 relay in the handbrake relay group are not connected to the positive and negative poles ( Because it is currently in the state of pulling the handbrake, the pin 2 of the No. 1 relay is controlled by the control of the handbrake controller 60 and the negative pole is disconnected); because the handbrake is in the state of pulling up, at this time, the handbrake controller 70 is usually connected to the negative pole when the handbrake is released, and the negative pole is stepped on Clutch pedal, due to the function of the clutch pedal to control the release of the handbrake switch, the pin 2 of the No. 4 relay is disconnected from the negative pole; Connect to pin 1 of the No. 4 relay and pin 3 of the No. 4 relay; when the clutch pedal is released, due to the action of the clutch pedal controlling the release of the handbrake switch, the pin 2 of the No. 4 relay is connected to the negative pole, so that the four The B positive pole of pin 1 of relay No. 4 is relayed to pin 4 of relay No. 4, and then to pin 3 of relay No. 7, pin 1 of relay No. 8, and pin 3 of relay No. 8. Since the pin 1 of the No. 7 relay and the pin 2 of the No. 7 relay are always connected to the negative pole, according to the working principle of the relay, the negative pole of the pin 1 of the No. 7 relay is relayed to the pin 4 of the No. 7 relay, thus Supply negative electricity to one terminal of motor 38; at the same time, the positive electricity of pin 1 of No. 8 relay is relayed to pin 4 of No. 8 relay, thereby supplying positive electricity to the other terminal of motor 38, thus relatively In the working state described in working principle 1, the positive and negative poles are reversed, so the motor 38 rotates in the opposite direction, and the automatic handbrake device of the car is driven through the reduction gear 33 and the driven gear 34 to realize the handbrake release operation; Head 302 is in contact with the contact piece of hand brake controller 70, causing hand brake controller 70 to be disconnected from the negative pole, pin 2 of No. No longer connect to pin 4 of relay No. 4, no longer supply positive power to pin 3 of relay No. 7, pin 1 of relay No. 8 and pin 3 of relay No. 8, so that the pin of relay No. 7 The pin 4 of No. 4 and No. 8 relays no longer supplies positive pole electricity or negative pole electricity to the motor, so the motor 38 stalls, and the automobile automatic handbrake device keeps the handbrake loose state.

Effect 3——Automatically pull the handbrake when the car is not turned off: when the car is moving, the driver depresses the clutch pedal and the brake pedal. Button 1 (or control pull handbrake button) makes the gear handball button control pull handbrake switch disconnected, and the handbrake is automatically pulled up at this time;

Working principle 3: Press the button on the gear handball to make the gear handball button control the handbrake switch to disconnect the connection with the positive electrode of B. The working principle is the same, the handbrake is automatically pulled up, and when the button on the gear handball is released, the gear handbrake button controls the handbrake switch and the positive pole of B is electrically connected, and its effect is the same as that of an unturned car engine The effect is the same, so it is the same as the working state when the car engine is not turned off in "Effect 1 - The handbrake is automatically pulled up when the engine is turned off", the motor does not rotate, so the handbrake stops pulling up, so as to realize the whole process of pulling up the handbrake This will not be repeated here. It should be noted that the tightening degree of the handbrake can be controlled by controlling the time of pressing and holding the button 1 on the gear handball. For example, according to the speed of the motor 38, the degree of deceleration, the stroke of the rotating disc and other factors, the handbrake will be pulled when the motor rotates for 1.5 seconds. Tighten to the limit, if so, then when the button one on the gear handball is pressed for 1.5 seconds, the handbrake is fully tightened, and when the button one on the gear handball is pressed for less than 1.5 seconds, the handbrake is partially pulled Tight, how tight depends on how long you hold down button one on the gear handle.

Effect 4——Press and hold button 2 on the gear handball (or control release handbrake button) to automatically release the handbrake: when the car is at a standstill after the engine starts, the driver depresses the clutch pedal and presses button 2 on the gear handball Engage I gear or reverse gear, and the handbrake will be released automatically;

Working principle 4: See attached drawing 5. When the clutch pedal is pressed down, the pin 2 of the No. 4 relay is disconnected from the negative pole due to the release of the handbrake switch by the clutch pedal. The gear handball button controls the release of the handbrake switch to connect the negative pole through the release of the handbrake controller 70, so its effect is the same as the effect of releasing the clutch pedal in "Effect 2——automatically release the handbrake when starting", which makes the No. 4 relay Pin 2 is connected to the negative pole, so the working principle of realizing the automatic release of the handbrake is the same as "Effect 2 - Automatically release the handbrake when starting", so I won't repeat it here. The release degree of the handbrake can also be controlled by controlling the time of pressing button 2 on the gear handball. For example, the handbrake is completely released when the pressure is designed to be 1.5 seconds, and the handbrake is partially released when the pressure is less than 1.5 seconds.

It should be noted that for effect 3, when the button 1 is pressed for less than 1.5 seconds, the handbrake will be partially tightened. At this time, if the driver turns off the car engine, "Effect 1 - handbrake when the engine is off" will also be triggered. Automatically pull up", so the part of the handbrake that is not fully tightened can be fully tightened automatically. Similarly, for effect 4, when the button 2 is pressed for less than 1.5 seconds, the handbrake will be partially released, but it does not matter. ——Automatically release the handbrake when starting", so the handbrake will be fully released automatically.

"Effect 4 - Press and hold the button 2 on the gear handball to automatically release the handbrake" can automatically release the handbrake through the driver's autonomous operation, which is very suitable for use when starting on flat ground and downhill (without slipping the car), while " Effect 2——Automatically release the handbrake when starting "It is very useful for starting on an uphill or when the driver forgets to release the handbrake, because it does not release the handbrake until the clutch pedal is released and the forward driving force of the car is reached when starting uphill. And it can automatically release the handbrake at an appropriate time when the driver forgets to release the handbrake, which is very useful.

In terms of safety, the automatic handbrake device for automobiles according to the embodiments of the present invention can be switched to the manual operation mode to operate the handbrake device at any time, which has been mentioned above and will not be repeated here. According to the electronic circuit designed by the present invention, three prerequisites must be met for automatically pulling the handbrake: 1, the automobile is in a static state; The automatic release of the handbrake must meet two prerequisites: 1. The positive pole of B must be connected to pin 1 and pin 3 of the No. 4 relay on the control board; 2. The negative pole must be connected to pin 2 of the No. 4 relay. Therefore, only when the above conditions are strictly met can the automatic pulling and releasing of the handbrake be triggered, which absolutely avoids the possibility of misoperation. In addition, if the automatic handbrake device of the car fails, the car can be controlled by manually operating the handbrake, and it can be used after maintenance. The present invention fully considers various possible situations in the design process, and has absolute safety.

Fig. 8 is a schematic diagram of an electronic circuit part of an automatic handbrake device for an automobile according to another embodiment of the present invention. The only difference between the example and the embodiment shown in Figure 5 for a manual transmission car is that the "clutch pedal controls the release of the hand brake switch" in the electronic circuit part shown in Figure 5 in the lower right corner (disconnect after stepping on it, and disconnect it after releasing it). On)" is replaced by the accelerator pedal to control the release of the handbrake switch (disconnect after release, and turn on after stepping down), so it can be seen that the accelerator pedal on the accelerator pedal can be used to control the release of the handbrake switch to completely replace the clutch pedal to control the release of the handbrake switch The effect, thereby realizes above-mentioned all functions on automatic transmission car.

While embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention. The scope of application of the present invention is defined by the appended claims and their equivalents.

List of reference signs:

21 brake

22 wire pull wire

23 shafts

24 ratchet

25 pawls

26 hand brake lever

27 Handbrake button

40 four-pin relay

1 pin 1

2 pin 2

3 pin 3

4 pin 4

50 five-pin relay

5 pin 5

31 brake

32 pull wire

33 reduction gear

34 driven gear

35 engagement clips

36 hand brake lever

37 Handbrake button

38 motor

301 first contact

302 second contact

60 pull handbrake controller

70 loose handbrake controller

61 brackets

62 spring

63 contacts

64 adjusting bolt

65 adjusting nut.

Claims (10)

1. an automobile automatic hand braking device, including brake (31), bracing wire (32) and hand brake lever (36), hand brake lever is fixedly connected with rotation dish on (36), one end of bracing wire (32) is fixing on the rotating pan, the other end is connected with brake (31), it is characterised in that:

Described automobile automatic hand braking device also includes reduction gearing (33), driven gear (34) and motor (38), wherein motor (38) is connected with reduction gearing (33) and is used for driving reduction gearing (33) to rotate, driven gear (34) engages with reduction gearing (33), and driven gear (34) is configured to engage with rotation dish.

2. automobile automatic hand braking device according to claim 1, it is characterized in that: also include manual brake button (37) and engage clamp (35), wherein engage clamp (35) to arrange on the rotating pan, manual brake button (37), with to engage clamp (35) mechanically connected, is used for controlling to engage clamp (35) and driven gear (34) engagement or disengagement.

3. the automobile automatic hand braking device according to claim 1 and 2, it is characterized in that: driven gear 34 is cluster gear, namely the cluster gear that two gears are coupled together concurrently by fixing axle, wherein a gear in cluster gear is for engaging with reduction gearing (33), and another gear in cluster gear is used for and engages clamp (35) joint.

4. automobile automatic hand braking device according to claim 3, it is characterized in that: also include the controller (60) that pulls the hand brake, the controller (60) that pulls the hand brake has contact (63), this contact (63) is corresponding with the first contact (301) arranged on the rotating pan, and after parking brake pull-up puts in place, the first contact (301) contacts with the contact (63) of the controller that pulls the hand brake (60).

5. automobile automatic hand braking device according to claim 4, it is characterized in that: described in the controller (60) that pulls the hand brake include support (61) and spring (62), described spring (62) is arranged between support (61) and the main body of the controller that pulls the hand brake.

6. automobile automatic hand braking device according to claim 5, it is characterized in that: described in the controller (60) that pulls the hand brake also include adjusting bolt (64) and adjusting nut (65), described contact (63) is connected with the main body of the controller that pulls the hand brake by adjusting bolt (64) and adjusting nut (65), utilizes adjusting bolt (64) and adjusting nut (65) can regulate the distance between contact (63) and the main body of the controller that pulls the hand brake.

7. automobile automatic hand braking device according to claim 6, it is characterized in that: also include RELEASE PARKINGBRAKE controller (70), RELEASE PARKINGBRAKE controller (70) has contact, the contact of RELEASE PARKINGBRAKE controller (70) is corresponding with the second contact (302) being arranged in hand brake lever (36), the contact pad of the second contact (302) and RELEASE PARKINGBRAKE controller (70) after parking brake pine puts in place.

8. automobile automatic hand braking device according to claim 7, it is characterized in that: also include panel, described panel includes a relay, No. two relays, No. three relays, No. four relays, No. five relays, No. six relays, No. seven relays and No. eight relays, wherein No. two relays and No. three relays are five foot relays, and all the other six relays are four foot relays.

9. automobile automatic hand braking device according to claim 8, it is characterised in that:

Described automobile automatic hand braking device also includes: full car main power after full car main power, engine start, driving switch automatically after engine misses, brake pedal controls switch, gear handball button control pulls the hand brake switch, I keeps off gear on-off, the gear on-off that reverses gear, gear handball button control RELEASE PARKINGBRAKE switch and clutch pedal control RELEASE PARKINGBRAKE and switch；Wherein, driving switch automatically disconnects when garage is walked, connect when car stops, brake pedal controls switch and connects after brake pedal depresses, disconnect after unclamping, gear handball button control pulls the hand brake to switch and switchs respectively through a button control with gear handball button control RELEASE PARKINGBRAKE, after pressing the button one, the button control of gear handball pulls the hand brake and switches off, connect after unclamping, gear handball button control RELEASE PARKINGBRAKE switch connection after pressing the button two, disconnect after unclamping, I keeps off gear on-off and the gear on-off that reverses gear is triggered by gear, when hanging up I gear, I keeps off gear on-off connection, when taking I gear, I keeps off gear on-off disconnection, the gear on-off that reverses gear when hanging up and reversing gear is connected, the gear on-off that reverses gear when taking and reversing gear disconnects, clutch pedal controls RELEASE PARKINGBRAKE switch and disconnects after clutch pedal depresses, connect after unclamping；

Controller (60) one terminals that pull the hand brake are connected with main power negative pole, the pin 2 of another wiring number relay of termination, after parking brake pull-up puts in place, the first contact (301) contacts with the contact (63) of the controller that pulls the hand brake (60), the controller (60) that now pulls the hand brake makes the pin 2 of a relay disconnect with main power negative pole, otherwise, when the first contact (301) does not contact with the contact (63) of the controller that pulls the hand brake (60), the pin 2 of a relay keeps and main power negative pole normal open state；

RELEASE PARKINGBRAKE controller (70) one terminals are connected with main power negative pole, another wiring termination gear handball button control RELEASE PARKINGBRAKE switch and clutch pedal control RELEASE PARKINGBRAKE switch, the contact pad of the second contact (302) and RELEASE PARKINGBRAKE controller (70) after parking brake pine puts in place, now RELEASE PARKINGBRAKE controller (70) makes gear handball button control RELEASE PARKINGBRAKE switch and clutch pedal control RELEASE PARKINGBRAKE switch disconnect with main power negative pole, otherwise, when the contact of the second contact (302) with RELEASE PARKINGBRAKE controller (70) does not contact, gear handball button control RELEASE PARKINGBRAKE switch and clutch pedal control RELEASE PARKINGBRAKE switch and keep and main power negative pole normal open state；

The pin 4 of one wiring No. five relays of termination of motor (38) and the pin 4 of No. seven relays, the pin 4 of another wiring No. six relays of termination of motor (38) and the pin 4 of No. eight relays；

The positive pole of full car main power after engine misses, driving switch automatically, brake pedal control switch, the pin 1 of No. two relays is sequentially connected with；Pull the hand brake one end of switch of the full positive pole of car main power after engine start, gear handball button control is sequentially connected with, gear handball button control pulls the hand brake, and the other end switched connects the pin 3 of 3, No. three relays of pin of No. two relays respectively, I keeps off one end of gear on-off and the one end of the gear on-off that reverses gear, and the other end of the other end and the gear on-off that reverses gear that I keeps off gear on-off is all connected with the pin 1 of No. four relays；One end of gear handball button control RELEASE PARKINGBRAKE switch and clutch pedal control one end of RELEASE PARKINGBRAKE switch and are all connected with the pin 2 of No. four relays, and the other end of gear handball button control RELEASE PARKINGBRAKE switch and clutch pedal control the other end of RELEASE PARKINGBRAKE switch and be all connected with another terminals described of RELEASE PARKINGBRAKE controller (70)；The pin 1 of 2, No. seven relays of pin and the pin 2 of No. eight relays of 2, No. three relays of pin of main power negative pole and No. two relays connect；

In panel, the pin 1 of a number relay and the pin 3 of a relay connect, the pin 1 of a number relay and the pin 4 of No. two relays connect, and the pin 4 of a relay is connected with the pin 1 of No. five relays, and the pin 4 of a relay is connected with the pin 3 of No. six relays；The pin 1 of No. three relays is connected with the pin 2 of No. three relays, and the pin 4 of No. three relays is connected with the pin 1 of No. six relays；The pin 1 of No. four relays is connected with the pin 3 of No. four relays, and the pin 4 of No. four relays is connected with the pin 3 of No. seven relays, and the pin 4 of No. four relays is connected with the pin 1 of No. eight relays；The pin 1 of No. five relays is connected with the pin 3 of No. five relays, and the pin 2 of No. five relays is connected with the pin 1 of No. six relays；The pin 1 of No. six relays is connected with the pin 2 of No. six relays；The pin 1 of No. seven relays is connected with the pin 2 of No. seven relays；The pin 1 of No. eight relays is connected with the pin 3 of No. eight relays.

10. automobile automatic hand braking device according to claim 9, it is characterized in that: " clutch pedal controls RELEASE PARKINGBRAKE switch " is substituted by " gas pedal controls RELEASE PARKINGBRAKE switch ", " clutch pedal controls RELEASE PARKINGBRAKE switch and disconnects after clutch pedal depresses; connect after unclamping " is substituted by " gas pedal controls RELEASE PARKINGBRAKE switch and connects after gas pedal depresses, and disconnects after unclamping ".