CN112776774A - Automatic parking device for vehicle - Google Patents
Automatic parking device for vehicle Download PDFInfo
- Publication number
- CN112776774A CN112776774A CN201911072742.4A CN201911072742A CN112776774A CN 112776774 A CN112776774 A CN 112776774A CN 201911072742 A CN201911072742 A CN 201911072742A CN 112776774 A CN112776774 A CN 112776774A
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- Prior art keywords
- brake
- vehicle
- processing module
- module
- sensor
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/06—Disposition of pedal
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
With the development of society and the progress of science and technology, automobiles become more and more intelligent, most of the current vehicles are provided with an automatic parking function, the current automatic parking function mostly depends on the use of an electronic hand brake, the electronic hand brake is slow, so that a driver needs to drive the vehicle, but the brake cannot be quickly released to cause vehicle pause and frustration, and the automatic oiling function is not available after starting, particularly, a female driver has poor control on a starting accelerator on a ramp, so that the vehicle is driven or starts to stop, and the like.
Description
Technical Field
The invention relates to the vehicle automatic control technology, in particular to an automatic parking device for a vehicle.
Background
With the development of society and the improvement of science and technology, automobiles become more and more intelligent, most of vehicles are provided with an automatic parking function at present, the automatic parking function at present mostly depends on the use of an electronic hand brake, the electronic hand brake is slow, so that a driver needs to drive the vehicle, but the brake cannot be quickly released, so that the vehicle is suspended and frustrated, and the automatic oiling function is not available after starting, particularly, the accelerator of a female driver is not well controlled when starting on a slope, so that the vehicle is driven or the vehicle is started to be flamed out, and the like.
Disclosure of Invention
The automatic parking device is simple in structure, is suitable for vehicles with manual gears, solves the problem of automatic parking of the manual gears, can quickly release a brake when a driver needs to drive, can automatically oil after the automatic parking is released, and enables the driver to start smoothly to prevent flameout.
An automatic parking device for a vehicle includes: the system comprises a processing module, a brake sensor, a vehicle speed sensor, a rotating speed sensor, a gear sensor, a brake execution module and an accelerator module;
the brake sensor is connected with the processing module;
the vehicle speed sensor is connected with the processing module;
the rotating speed sensor is connected with the processing module;
the gear sensor is connected with the processing module;
the brake execution module is connected with the processing module;
the throttle module is connected with the processing module;
the processing module acquires a brake signal of the vehicle through a brake sensor;
the processing module acquires the speed information of the vehicle through a vehicle speed sensor;
the processing module acquires the rotating speed information of the vehicle through a rotating speed sensor;
the processing module acquires gear information of the vehicle through a gear sensor;
the processing module performs braking and releases braking by controlling the brake execution module;
the processing module acquires the stepping information of an accelerator pedal of the vehicle through the accelerator module;
the processing module controls the rotating speed of the vehicle engine through the accelerator;
the processing module controls the brake and the engine speed according to the following conditions:
when the brake signal is satisfied, the vehicle speed is zero and the accelerator pedal is not trampled, the brake is executed;
when the stepping of an accelerator pedal is detected after the brake is executed, the brake is released;
when the gear is detected to be changed from the neutral gear to the non-neutral gear after the brake is executed, the brake is released;
an automatic parking device for a vehicle includes: and the reminding module is connected with the processing module and is used for reminding a driver of the current brake state.
The brake execution module of the automatic parking device for the vehicle comprises: the brake driving circuit, the brake motor, the speed reducer, the winding wheel and the flexible connecting piece are arranged on the brake driving circuit;
the driving circuit is connected with the control end of the brake motor;
the output shaft of the brake motor is connected with the input shaft of the speed reducer;
the output shaft of the speed reducer is connected with the winding wheel;
one end of the flexible connecting piece is connected with the winding wheel, and the other end of the flexible connecting piece is connected with the brake pedal;
the accelerator module is connected with an accelerator pedal position sensor of the vehicle, and the accelerator module judges whether an accelerator pedal is stepped or not according to signals of the accelerator pedal position sensor;
the accelerator module is connected with a driving computer of the vehicle, and the accelerator module amplifies an accelerator pedal position signal and transmits the amplified accelerator pedal position signal to the driving computer so as to increase the rotating speed of the engine;
the processing module can also control the rotation speed of the brake and the engine according to the following conditions:
when the gear is detected to be changed from neutral to non-neutral after the brake is executed, the brake is released, and the rotating speed of the engine is increased to a threshold A;
and ending the increase of the engine speed when a brake signal is detected after the increase of the engine speed is executed or the accelerator pedal is detected to be stepped.
An automatic parking device for a vehicle includes:
the value range of the threshold value A is 800-2000 r/min.
The invention has the beneficial effects that:
the invention directly controls the brake pedal through the motor and the speed reducer mechanism to complete braking, the flexible connecting piece ensures that the stepping of the original vehicle brake pedal is not influenced, the mode of releasing the braking triggered by the invention can be stepping on the accelerator pedal or changing the gear from neutral to non-neutral, and the latter can also properly increase the rotating speed of the engine to prevent the vehicle from starting and flameout.
Drawings
Fig. 1 is a block diagram schematic of the present invention.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention will be described in detail by the following embodiments.
An automatic parking device for a vehicle includes: the system comprises a processing module, a brake sensor, a vehicle speed sensor, a rotating speed sensor, a gear sensor, a brake execution module and an accelerator module;
the brake sensor is connected with the processing module;
the vehicle speed sensor is connected with the processing module;
the rotating speed sensor is connected with the processing module;
the gear sensor is connected with the processing module;
the brake execution module is connected with the processing module;
the throttle module is connected with the processing module;
the processing module acquires a brake signal of the vehicle through a brake sensor;
the processing module acquires the speed information of the vehicle through a vehicle speed sensor;
the processing module acquires the rotating speed information of the vehicle through a rotating speed sensor;
the processing module acquires gear information of the vehicle through a gear sensor;
the processing module performs braking and releases braking by controlling the brake execution module;
the processing module acquires the stepping information of an accelerator pedal of the vehicle through the accelerator module;
the processing module controls the rotating speed of the vehicle engine through the accelerator;
the processing module controls the brake and the engine speed according to the following conditions:
when the brake signal is satisfied, the vehicle speed is zero and the accelerator pedal is not trampled, the brake is executed;
when the stepping of an accelerator pedal is detected after the brake is executed, the brake is released;
when the gear is detected to be changed from the neutral gear to the non-neutral gear after the brake is executed, the brake is released;
an automatic parking device for a vehicle includes: and the reminding module is connected with the processing module and is used for reminding a driver of the current brake state.
The brake execution module of the automatic parking device for the vehicle comprises: the brake driving circuit, the brake motor, the speed reducer, the winding wheel and the flexible connecting piece are arranged on the brake driving circuit;
the driving circuit is connected with the control end of the brake motor;
the output shaft of the brake motor is connected with the input shaft of the speed reducer;
the output shaft of the speed reducer is connected with the winding wheel;
one end of the flexible connecting piece is connected with the winding wheel, and the other end of the flexible connecting piece is connected with the brake pedal;
the accelerator module is connected with an accelerator pedal position sensor of the vehicle, and the accelerator module judges whether an accelerator pedal is stepped or not according to signals of the accelerator pedal position sensor;
the accelerator module is connected with a driving computer of the vehicle, and the accelerator module amplifies an accelerator pedal position signal and transmits the amplified accelerator pedal position signal to the driving computer so as to increase the rotating speed of the engine;
the processing module can also control the rotation speed of the brake and the engine according to the following conditions:
when the gear is detected to be changed from neutral to non-neutral after the brake is executed, the brake is released, and the rotating speed of the engine is increased to a threshold A;
and ending the increase of the engine speed when a brake signal is detected after the increase of the engine speed is executed or the accelerator pedal is detected to be stepped.
An automatic parking device for a vehicle includes:
the value range of the threshold value A is 800-2000 r/min.
The invention comprises the following steps: the system comprises a processing module, a brake sensor, a vehicle speed sensor, a rotating speed sensor, a gear sensor, a brake execution module, an accelerator module and a prompt module;
the processing module is generally a microcontroller and a circuit, and comprises a singlechip and the like, wherein the singlechip comprises an internal program for processing and judging;
the brake sensor is a brake signal, a general maintainer refers to a brake cable, when braking, the brake cable is 12v, when not braking, the brake cable is 0v, and the processing module judges whether braking is performed or not by detecting level change;
the vehicle speed sensor and the rotating speed sensor can be integrated into the OBD module, and the rotating speed and the vehicle speed of the vehicle are acquired through the vehicle OBD interface;
the gear sensor is used for detecting the gear of the vehicle;
the brake execution module comprises a brake driving circuit, a brake motor, a speed reducer, a winding wheel and a flexible connecting piece, wherein the driving circuit is generally an H-bridge driving circuit, and can control the brake motor to rotate forwards and backwards so as to easily realize braking and brake release. The brake motor also needs to increase the brake force through a speed reducer, a speed reducer of 50:1 is generally selected to take the brake speed and the brake force into consideration, the speed reducer is connected with a winding wheel, the winding wheel drives a flexible connecting piece, the flexible connecting piece pulls a brake pedal downwards to realize braking, the brake motor is fixed on a bottom plate of a cab at the moment, if the brake motor is fixed on the brake pedal, one end of the flexible connecting piece is fixed on the bottom plate of the cab, the flexible connecting piece can be a steel wire, a chain, a nylon wire and the like, and the purpose of using the flexible connecting piece is to ensure that a driver can not be influenced to freely step on the brake pedal after the flexible connecting piece is completely loosened by the winding wheel.
The accelerator module also comprises a microcontroller and a circuit, the accelerator module collects and intercepts position signals of an accelerator pedal, the accelerator module is further connected with a traveling computer, when the rotating speed of the engine needs to be increased, the accelerator module sends the amplified position signals of the accelerator pedal to the traveling computer to increase the rotating speed of the engine, the rotating speed of the engine is increased and then fed back to the processing module through the rotating speed sensor, and the processing module controls the accelerator module to adjust according to the fed-back rotating speed. When the rotating speed of the engine does not need to be increased, the accelerator module directly sends an accelerator pedal position signal to a driving computer, and a driver can freely control the rotating speed of the engine through the accelerator pedal.
The prompting module can be in a sound mode, a sound-light mode or the like, a buzzer is generally used, when the brake is used for alarming, the alarming duration is generally 0.6s, when the brake is released, the alarming duration is also generally 0.3 s.
The processing module is connected with the brake sensor, the vehicle speed sensor, the rotating speed sensor, the gear sensor, the brake execution module, the accelerator module and the prompt module, and acquires information and controls the brake and the rotating speed of the engine through the connected module and sensor.
When the processing module detects a brake signal, the vehicle speed is zero and the accelerator pedal is not stepped, the processing module controls the brake execution module to execute the brake, so that the automatic parking function is completed;
when the automatic parking function is completed, the processing module controls the brake execution module to release the brake when the processing module detects that the accelerator pedal is stepped on;
when the automatic parking function is completed, the processing module detects that the gear is changed from the neutral gear to the non-neutral gear, the processing module controls the brake execution module to release the brake and simultaneously controls the accelerator module to increase the rotating speed of an engine to 1500 revolutions, and at the moment, the driver can easily complete starting even if not stepping on the accelerator pedal, so that the starting flameout of the engine is avoided.
After the engine rotating speed is increased, the processing module stops increasing the engine rotating speed when detecting a brake signal or an accelerator pedal is trampled, if the brake signal indicates that a driver needs to brake, and if the accelerator pedal is trampled, the accelerator pedal signal is directly sent to a driving computer, so that the driver can freely control the engine rotating speed.
Generally, the engine speed is increased by 1500 rpm, which is a comfortable starting speed, but this value is not limited.
It should be understood that when the automatic parking function is completed, the processing module detects that the gear is changed from the neutral gear to the non-neutral gear, and at this time, the processing module controls the brake execution module to release the brake and also controls the throttle module to increase the engine speed to 1500 revolutions at the same time, but when the engine speed is increased, the processing module stops increasing the engine speed when detecting a brake signal. The time difference problem exists in the interval, because the engine speed is increased and the brake is released, the brake signal cannot disappear immediately due to the fact that time is needed for releasing the brake when the engine speed is increased, the brake signal exists in a period of time after the engine speed is increased and the brake signal is released, the brake signal detected by the engine speed increasing post-processing module stops increasing the engine speed is detected after the engine speed is increased for a duration B, the duration B is determined according to the brake releasing time, for example, the brake releasing time of the brake actuating mechanism needs 0.3s, B needs to be more than 0.3, and generally, the value can be 0.6s for keeping stability.
Although the present invention completes the automatic parking function, when the scene is that the vehicle is parked on a slope, it can also be called an uphill assist, for example: the vehicle is braked after running on a slope, when the processing module detects that a brake signal, the vehicle speed is zero and an accelerator pedal is not trampled and simultaneously met, the brake is executed, after the brake, if a driver needs to start, the gear can be pushed to a gear from a neutral gear at the moment, the control module can loosen the brake and simultaneously improve the rotating speed of an engine, and the driver can finish the uphill only by controlling a clutch pedal, so that the function can also be called as uphill assistance.
The 1500-turn rotation speed can be increased as an extension of the invention by setting a specific rotation speed according to the requirement of a driver, or intelligently identifying the required rotation speed by adding a sensor, for example, by adding an inclination angle sensor, detecting the inclination angle of the vehicle when the rotation speed of the engine needs to be increased, and increasing the rotation speed of the engine when the two vehicles are on a larger slope. Canceling raising the engine speed when the vehicle is on a downhill slope, and the like.
Although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is to be construed as limited by the claims.
Claims (4)
1. An automatic parking device for a vehicle, characterized by comprising: the system comprises a processing module, a brake sensor, a vehicle speed sensor, a rotating speed sensor, a gear sensor, a brake execution module and an accelerator module;
the brake sensor is connected with the processing module;
the vehicle speed sensor is connected with the processing module;
the rotating speed sensor is connected with the processing module;
the gear sensor is connected with the processing module;
the brake execution module is connected with the processing module;
the throttle module is connected with the processing module;
the processing module acquires a brake signal of the vehicle through a brake sensor;
the processing module acquires the speed information of the vehicle through a vehicle speed sensor;
the processing module acquires the rotating speed information of the vehicle through a rotating speed sensor;
the processing module acquires gear information of the vehicle through a gear sensor;
the processing module performs braking and releases braking by controlling the brake execution module;
the processing module acquires the stepping information of an accelerator pedal of the vehicle through the accelerator module;
the processing module controls the rotating speed of the vehicle engine through the accelerator;
the processing module controls the brake and the engine speed according to the following conditions:
when the brake signal is satisfied, the vehicle speed is zero and the accelerator pedal is not trampled, the brake is executed;
when the stepping of an accelerator pedal is detected after the brake is executed, the brake is released;
and when the gear is detected to be changed from the neutral gear to the non-neutral gear after the brake is executed, the brake is released.
2. The automatic parking device for a vehicle according to claim 1, characterized by comprising: and the reminding module is connected with the processing module and is used for reminding a driver of the current brake state.
3. The automatic parking device for the vehicle according to claim 1, wherein the brake actuating module comprises: the brake driving circuit, the brake motor, the speed reducer, the winding wheel and the flexible connecting piece are arranged on the brake driving circuit;
the driving circuit is connected with the control end of the brake motor;
the output shaft of the brake motor is connected with the input shaft of the speed reducer;
the output shaft of the speed reducer is connected with the winding wheel;
one end of the flexible connecting piece is connected with the winding wheel, and the other end of the flexible connecting piece is connected with the brake pedal;
the accelerator module is connected with an accelerator pedal position sensor of the vehicle, and the accelerator module judges whether an accelerator pedal is stepped or not according to signals of the accelerator pedal position sensor;
the accelerator module is connected with a driving computer of the vehicle, and the accelerator module amplifies an accelerator pedal position signal and transmits the amplified accelerator pedal position signal to the driving computer so as to increase the rotating speed of the engine;
the processing module can also control the rotation speed of the brake and the engine according to the following conditions:
when the gear is detected to be changed from neutral to non-neutral after the brake is executed, the brake is released, and the rotating speed of the engine is increased to a threshold A;
and ending the increase of the engine speed when a brake signal is detected after the increase of the engine speed is executed or the accelerator pedal is detected to be stepped.
4. The automatic parking device for a vehicle according to claim 3, characterized by comprising:
the value range of the threshold value A is 800-2000 r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911072742.4A CN112776774A (en) | 2019-11-05 | 2019-11-05 | Automatic parking device for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911072742.4A CN112776774A (en) | 2019-11-05 | 2019-11-05 | Automatic parking device for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112776774A true CN112776774A (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911072742.4A Pending CN112776774A (en) | 2019-11-05 | 2019-11-05 | Automatic parking device for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112776774A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115289216A (en) * | 2022-07-26 | 2022-11-04 | 中汽创智科技有限公司 | Control method and control system for improving climbing capability of stepless automatic gearbox |
-
2019
- 2019-11-05 CN CN201911072742.4A patent/CN112776774A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115289216A (en) * | 2022-07-26 | 2022-11-04 | 中汽创智科技有限公司 | Control method and control system for improving climbing capability of stepless automatic gearbox |
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Application publication date: 20210511 |