CN1721241A

CN1721241A - Manual car automatic parking brake assist system

Info

Publication number: CN1721241A
Application number: CN 200410069216
Authority: CN
Inventors: 李世雄
Original assignee: Individual
Current assignee: ZHUHAI COLIGEN CO Ltd
Priority date: 2004-07-15
Filing date: 2004-07-15
Publication date: 2006-01-18
Anticipated expiration: 2024-07-15
Also published as: CN100347012C

Abstract

The present invention relates to an automatic parking brake assist system for manual transmission vehicles, which is suitable for manual transmission vehicles and can provide auxiliary forced parking/braking functions when stationary and moving. It is mainly composed of a control unit that automatically detects the vehicle's travel direction and the state of the manual transmission. When the travel direction is inconsistent with the state of the manual transmission, the control unit automatically activates a parking brake system to force the vehicle to stop moving. In addition, the parking brake system can be used as an auxiliary mechanism for the hand brake. When the driver leaves the seat, the control unit can automatically activate the parking brake system to prevent the vehicle from accidentally sliding in the parking state.

Description

Auxiliary system for automatic stopping and braking of manual transmission automobile

Technical field

The present invention is about a kind of auxiliary system for automatic stopping and braking of manual transmission automobile, refer to especially a kind of see through judge whether advance/whether direct of travel consistent with hand gear state, so that the system of complementary pressure brake function to be provided.

Background technology

Existing vehicle still is divided into hand gear and auto transmission in the gear mode, the two respectively has quality, the visual demand of user own is selected hand row's car or fluid drive vehicle, with the fluid drive vehicle is example, if, but often travel on express highway as vehicle no doubt not the auto transmission facility in the gear mode, the chance of its conversion gear is less relatively, then the difference of hand gear and auto transmission is promptly not remarkable, but the hand gear has the advantage that shortens the acceleration/accel time.Anyway, hand gear and auto transmission respectively are good at, and the user can be selected according to the needs of itself.But arrange car while you're at it, its gear is the M/C that relies on steerman fully, so unavoidably because of the carelessness situation that meets accident, when for example hand row car starts as not determining fully that the hand gear is to be in correct gear, steerman promptly must be stepped on brake pedal earlier, and (this situation is forgotten before occurring in steerman reversing and is forwarded the hand gear to backing car gear to prevent vehicle from travelling to reversing sense, as not stepping on brake pedal earlier, will march forward earlier behind the vehicle launch but not retreat).When steerman leaves vehicle again, the stopping brake lock pull-up can must not slided to guarantee vehicle,, be positioned at when vehicle on the road surface with certain slope if steerman forgets the locking stopping brake lock because of carelessness, promptly can be at leisure from line slip, thus cause accident.

From the above, hand row car relies on being absorbed in of steerman fully because of the gear operation, and if any neglecting the situation that promptly meets accident easily, relevant this problem obviously needs to be further reviewed, and seeks feasible solution.

Summary of the invention

Main purpose of the present invention provide a kind of see through judge vehicle whether advance/whether direct of travel consistent with hand gear state, so that the automatic ancillary system of complementary pressure brake function to be provided.Utilize this system to detect the direct of travel of vehicle and the state of hand gear automatically, when the state of direct of travel and hand gear is inconsistent, will start brake system automatically.

For reaching the major technique means that aforementioned purpose takes is to make aforementioned assistance system include at least:

Gear detector on the other hand, in order to the gear that detects the hand gear (as reverse,, neutral gear, 1 to 6 grade etc.);

One direction detector of advancing is to advance or retreat in order to the direct of travel that detects vehicle;

One servomechanism is with the state of electro-motor control brake system;

One control unit is a detection signal of obtaining aforementioned hand gear detector and direct of travel detector, to see through the servomechanism control brake system of being located on its mouth;

Under the monitoring of aforementioned system, when the gear of hand gear and vehicle direct of travel are inconsistent, promptly see through servomechanism and start brake system by control unit, force vehicle no longer mobile, meet accident avoiding.

The control unit of aforementioned assistance system further connects a manual button, and this hand push button supplies the user with manual mode startup/deactivation system.

Aforementioned assistance system further comprises a horizontal detector, and it is located at the appropriate location of vehicle, and is connected with control unit, to detect the tilt condition of vehicle, judges that for control unit vehicle system is positioned at upward slope or descending state.

Aforementioned assistance system further comprises an indicating member, and it is located on the mouth of control unit, is able to the state of the sense of hearing or visual form prompt system.

Aforementioned control unit will further be obtained the car key state of vehicle, start or flameout state to judge that vehicle is in.

The present invention's time purpose when steerman leaves vehicle, will start a parking brake system at the auxiliary mechanism that a kind of vehicle stopping brake lock is provided automatically, slide to avoid the vehicle accident.

For reaching the technological means that aforementioned order takes is to make aforementioned assistance system further include a pressure detector, it is located in the steerman seat, and be connected with control unit, to judge whether steerman leaves vehicle, and with testing result notice control unit, when stop back and steerman disseat, then system will start and enter a parking monitoring mode, to prevent vehicle generation slip condition when stopping.

Description of drawings

Fig. 1 is a system configuration scheme drawing of the present invention.

Fig. 2 is a system block diagrams of the present invention.

Fig. 3 is a circuit diagram of the present invention.

The figure number explanation

10 control units, 11 hand gear detectors

12 direct of travel detectors, 13 horizontal detectors

130 analog/digital converters, 14 pressure detectors

15 indicating members, 141,142 change-over circuits

151 telltales, 152 buzzer phones

16 hand push buttons, 17 switches

The specific embodiment

Relevant system architecture of the present invention, the scheme drawing of one preferred embodiment sees also shown in Figure 1, and it includes:

On the other hand the gear detector 11, are the hand gear places that is located in the car, in order to the gear that detects the hand gear (as reverse, neutral gear, 1 to 6 grade etc.);

One direction detector 12 of advancing, it is to advance or retreat in order to the direct of travel that detects vehicle; In present embodiment, this direct of travel detector 12 is to be located on the relative position of arbitrary wheel, and to detect the rotating of wheel, being provided as vehicle is the basis for estimation of advancing or retreating;

One horizontal detector 13, it is located at the appropriate location of vehicle, in order to detect the tilt condition of vehicle, is to be positioned to go up a slope or the descending state and supply the judgement vehicle;

One pressure detector 14 is to be located in the steerman seat, will produce different pressure and change when steerman is positioned on the seat or disseats, and utilizes this variation message for judging whether steerman leaves vehicle;

One indicating member 15 is located at the appropriate location in the car, is provided with vision and/or the sense of hearing form steerman is given in the state of the system prompting;

One manual button 16 is selected to start or the deactivation system function with manual mode for the user;

One servomechanism (not shown), one possible embodiments are to utilize the state of establishing brake system in the electro-motor control vehicle.

Can understand the present invention assembly or the mechanism that install each appropriate location in car by above-mentioned explanation, and aforementioned components, mechanism further are connected (as shown in Figure 2) with a control unit 10, utilize this control unit 10 as the s operation control center, to receive the signal of various detection components, as the foundation that sees through servomechanism control brake system.Can find out further also that by Fig. 1, Fig. 2 control unit 10 removes and is connected with each detection components and servomechanism, also further receives the message that vehicle itself produces and can supply to utilize, as:

Speed of a motor vehicle detection signal VSS is produced by the speed of vehicle detector of establishing in the vehicle (Vehicle Speed Sensor), judges for control unit 10 whether vehicle remains static;

The brake pedal state is further to confirm steerman onboard for control unit 10;

The car key state is to judge that for control unit 10 vehicle is to start or flameout state.

See also shown in Figure 3 again, it is the circuit diagram of aforementioned system, it discloses the detailed circuit of most of assembly among Fig. 2, this control unit 10 is to be made of a microprocessor 8951, and its each input end connects aforesaid hand gear detector 11, direct of travel detector 12, horizontal detector 13, pressure detector 14, indicating member 15, hand push button 16 and servomechanism respectively and connects; Wherein:

This horizontal detector 13 is to see through an analog/digital converter 130 to connect with the corresponding input end of control unit 10; This pressure detector 14 is to be made of a positive pressure resistance, and it sees through a change-over circuit 141 and is connected with control unit 10; VSS signal from vehicle itself also is connected with control unit 10 through a change-over circuit 142 again; In addition in present embodiment, this indicating member 15 is made up of a telltale 151 and a buzzer phone 152, its two be connected with the mouth of control unit 10 respectively so that inform user's state of the system at that time through vision and audible means.

Whether one input end of aforementioned again control unit 10 is to utilize the brake pedal on a switch 17 inspection vehicles to be depressed, on control unit 10 1 mouths set servomechanism then use with car on brake system link.

Can understand concrete structure of the present invention by above-mentioned explanation, as for its principle of work with to reach effect detailed as described below:

The present invention mainly is the detection direct of travel detector 12 that continued by control unit 10 and the state of pressure detector 14; nobody and vehicle forward/backward move on the driver seat if pressure sensor 14 detects; show that vehicle just slides at mal; control unit 10 will drive servomechanism immediately with the startup brake system this moment, and force vehicle no longer mobile.

Detect gear in one's hands as control unit 10 and be in reverse, and see through direct of travel detector 12 and learn that wheel is to move forward, it is downward-sloping to detect headstock simultaneously in addition, show that vehicle is in the descending state, then control unit 10 will start brake system through servomechanism, to force vehicle no longer mobile.

When control unit 10 detects gear in one's hands is to be in any shelves of working direction but wheel moves backward, and detecting headstock simultaneously is inclined upwardly, show that vehicle is positioned at the upward slope state, then control unit 10 will see through servomechanism startup parking brake system, forces vehicle no longer mobile.

Gear in one's hands is in neutral state and wheel moves forward or backward when control unit 10 detects; detect headstock simultaneously in addition and tilt up or down, show that promptly vehicle is to slide at mal, at this moment; control unit 10 will start the parking brake system through servomechanism, force vehicle no longer mobile.

Moreover, being positioned at quiescence when control unit detects VSS signal aspect and indication vehicle system, and seeing through the pressure detector of establishing in the driver seat 14 and detect steerman and leave, this control unit 10 promptly sees through servomechanism and starts brake system, guarantees that vehicle is unlikely to move.

If steerman still the position on operator's saddle, and control unit 10 detects brake pedal and is operated, detect the car key state as control unit 10 and transfer OFF to by ON this moment, control unit 10 will see through servomechanism and link brake system, and enter the parking monitoring mode, this indicating member 15 and the message that will start with telltale 151 or buzzer phone 152 prompting ancillary systems.

And for example control unit 10 detects vehicle and is positioned at quiescence, and brake pedal is operated, this moment, ancillary system was ready, 10 states that continue to detect hand push button 16 of control unit, if hand push button 16 is pressed the mode of operation of the ancillary system that promptly automaticallyes switch: if before pressing hand push button 16, ancillary system has been in starting state, after then pressing hand push button 16, control unit 10 will be removed the locking of ancillary system to vehicle; If before pressing hand push button 16, ancillary system starts as yet, then press hand push button 16 after, even this control unit 10 system start-ups and enter monitoring mode, simultaneously by the mode of operation of indicating member 15 prompting ancillary systems.

If vehicle system is positioned at quiescence and ancillary system starts, be pressed long period that (its time length can by control unit 10 be set if control unit 10 detects hand push button 16 this moment, the time of for example pressing was above 10 seconds), no matter whether driver seat has the people, ancillary system all will automatically terminate, and be disengaged at present by indicating member 15 prompting ancillary systems, this function is applicable to that steerman is on the scene and situation that vehicle need be dragged away.

In sum, the present invention sees through to judge whether the vehicle direct of travel is consistent with hand gear range state, and sees through the brake system of a servomechanism operating and controlling vehicle, so that force it to remain static when vehicle produces unusual the slip; The present invention's while is as the auxiliary mechanism of stopping brake lock again; forget the pull-up stopping brake lock when getting off as steerman; and under the situation of system start-up; in case taking place, vehicle moves phenomenon; ancillary system will start brake system immediately and be locked; make vehicle no longer mobile, with the unexpected situation of effectively avoiding sliding and being produced because of mal.

Claims

1. An automatic parking brake assist system for a manual vehicle, characterized in that it comprises:

The first hand gear detector is set at the hand gear on the car to detect the gear position of the hand gear;

A traveling direction detector, used to detect whether the traveling direction of the vehicle is forward or backward;

a servomechanism to control the state of the braking system with an electric motor;

A control unit obtains the detection signals of the manual gear detector and the direction of travel detector, so as to control the braking system of the vehicle through the servo mechanism arranged on its output end.

2. The automatic parking brake assisting system for manual vehicles according to claim 1, characterized in that, the input end of the control unit is further provided with a level detector, which is arranged at an appropriate position of the vehicle to detect the tilting condition of the vehicle , for the control unit to judge whether the vehicle is on an uphill or downhill state.

3. The automatic parking brake assisting system of a manual vehicle according to claim 2, wherein the level detector is connected to the control unit through an analog/digital converter.

4. The automatic parking brake assisting system of a manual vehicle according to claim 1, wherein the input end of the control unit is further provided with a pressure detector, which is arranged in the driver's seat to further confirm the driver's Whether to get off.

5. The automatic parking brake assisting system for a manual vehicle according to claim 1 or 4, wherein the control unit further obtains a vehicle speed detection signal to determine whether the vehicle is stationary.

6. The automatic parking brake assisting system for a manual vehicle according to claim 5, wherein the vehicle speed detection signal and the pressure detector are respectively connected to the control unit through a conversion circuit.

7. The automatic parking brake assisting system for a manual vehicle according to claim 1, wherein the control unit further obtains the state of the vehicle key to determine whether the vehicle is in the state of being started or turned off.

8. The automatic parking brake assisting system of a manual vehicle according to claim 1, wherein the control unit further detects whether the brake pedal on the vehicle is stepped on.

9. The automatic parking brake assisting system for manual vehicles according to claim 1, wherein the output end of the control unit is further provided with an indicating unit, the indicating unit is composed of a display and a buzzer, both of which Connect to the output terminals of the control unit respectively.

10. The automatic parking brake assisting system of a manual vehicle according to claim 1, wherein the control unit is further connected with a manual button, and the manual button is for the user to manually activate/deactivate the system.