CN107725769B - Wet dual-clutch automatic transmission P keeps off parking control method - Google Patents
Wet dual-clutch automatic transmission P keeps off parking control method Download PDFInfo
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- CN107725769B CN107725769B CN201711085846.XA CN201711085846A CN107725769B CN 107725769 B CN107725769 B CN 107725769B CN 201711085846 A CN201711085846 A CN 201711085846A CN 107725769 B CN107725769 B CN 107725769B
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- parking
- control system
- vehicle
- signal
- electronic
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/48—Signals to a parking brake or parking lock; Control of parking locks or brakes being part of the transmission
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3483—Parking lock mechanisms or brakes in the transmission with hydraulic actuating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses a kind of wet dual-clutch automatic transmission P gear parking control method and control systems, and wherein the control method includes: to receive parking enabling signal；Judge vehicle-state, if vehicle remains static, issues the first parking signal to electronic parking control system, so that electronic parking control system provides parking power, execute static parking；If vehicle is in driving status, and speed is in the vehicle speed range of setting, then issues the second parking signal to electronic parking control system, so that electronic parking control system provides deceleration, executes nonstatic parking；If vehicle is in driving status, and speed is greater than speed setting value, then enters to electronic parking control system and issue third parking signal, to execute automatically controlled dynamic parking.Wet dual-clutch automatic transmission P gear parking control method and control system provided by the invention, realize the function of static parking and dynamic parking, improve parking safety and comfort of passenger.
Description
Technical field
The present invention relates to automobile technical field more particularly to a kind of wet dual-clutch automatic transmission P gear parking controls
Method and control system.
Background technique
Wet dual-clutch automatic transmission P keeps off parking function and is limited only to stationary vehicle and speed≤5m/s at present；And
The maximum parking gradient≤20% when stationary vehicle；When 0 < speed≤5m/s, though P gear is able to carry out parking, when vehicle is completely quiet
When only, impact is big, brings discomfort to driver.
Summary of the invention
The object of the present invention is to provide a kind of wet dual-clutch automatic transmission P gear parking control method and control systems
System realizes the function of static parking and dynamic parking to solve above-mentioned the problems of the prior art, improve parking safety and
Comfort level of the passenger in parking.
The present invention provides a kind of wet dual-clutch automatic transmission P to keep off parking control method, wherein including walking as follows
It is rapid:
Step S100, parking enabling signal is received；
Step S200, judge vehicle-state, if vehicle remains static, enter step S300；If at vehicle
In driving status, and speed is in the vehicle speed range of setting, then enters step S400；If vehicle is in driving status, and
Speed is greater than speed setting value, then enters step S500；
Step S300, the first parking signal is issued to electronic parking control system, so that the electronic parking control system
Parking power is provided, static parking is executed；
Step S400, Xiang Suoshu electronic parking control system issues the second parking signal, so that the electronic parking controls
System provides deceleration, executes nonstatic parking；
Step S500, Xiang Suoshu electronic parking control system issues third parking signal, to execute automatically controlled dynamic parking.
Wet dual-clutch automatic transmission P as described above keeps off parking control method, wherein preferably, described the
One parking signal includes standard parking signal and limping parking signal, and step S300 is specifically included:
Step S310, whether normal the electronic parking control system is detected, if it is, entering step S311；If
It is no, then enter step S312；
Step S311, Xiang Suoshu electronic parking control system issues the standard parking signal, so that the electronic parking
Control system executes static parking with standard parking power；
Step S312, Xiang Suoshu electronic parking control system issues the limping parking signal, so that the electronic parking
Control system executes static parking with maximum parking power.
Wet dual-clutch automatic transmission P as described above keeps off parking control method, wherein preferably, in step
Before S400 further include:
Step S401, whether normal the electronic parking control system is detected；If it is, entering step S400；If
It is no, then enter step S402；
Step S402, Xiang Chuantong parking control system issues traditional parking signal, to execute traditional parking.
Wet dual-clutch automatic transmission P as described above keeps off parking control method, wherein preferably, described to subtract
Speed is 2.44m/s2.
Wet dual-clutch automatic transmission P as described above keeps off parking control method, wherein preferably, in step
Before S500 further include:
Step S510, whether normal the electronic parking control system is detected, if it is, entering step S500；If
It is no, then enter step S520；
Step S520, so that vehicle is kept sliding state, and enter step S200.
Wet dual-clutch automatic transmission P as described above keeps off parking control method, wherein preferably, in step
Before S510 further include:
Step S501, whether detection electronic stabilizing control system is normal, if it is, entering step S502；If it is not, then
Enter step S510；
Step S502, Xiang Suoshu electronic stabilizing control system issues the 4th parking signal, to execute hydraulic dynamic parking.
The present invention also provides a kind of wet dual-clutch automatic transmission P to keep off parking control system, wherein uses this hair
The wet dual-clutch automatic transmission P of bright offer keeps off parking control method, and the wet dual-clutch automatic transmission P gear is stayed
Vehicle control includes:
Shift handle control system, for sending parking enabling signal；
Gearbox control, if vehicle remains static, controls system to electronic parking for judging vehicle-state
System issues the first parking signal；If vehicle is in driving status, and speed is in the vehicle speed range of setting, then is stayed to electronics
Vehicle control issues the second parking signal；If vehicle is in driving status, and speed is greater than speed setting value, stays to electronics
Vehicle control issues third parking signal；
Electronic parking control system, the first parking signal for being sent according to the gearbox control provide parking
Power executes static parking；
The second parking signal that the electronic parking control system is also used to be sent according to the gearbox control provides
Deceleration executes nonstatic parking；
The third parking signal that the electronic parking control system is also used to be sent according to the gearbox control executes
Automatically controlled dynamic parking.
Wet dual-clutch automatic transmission P as described above keeps off parking control system, wherein preferably, further includes
Electronic stabilizing control system is connected between the electronic parking control system and the gearbox control, for executing liquid
Press state parking.
Wet dual-clutch automatic transmission P as described above keeps off parking control system, wherein preferably, further includes
Traditional parking control system is connected with the gearbox control, and the tradition for being sent according to the gearbox control is stayed
Vehicle signal executes traditional parking.
Wet dual-clutch automatic transmission P as described above keeps off parking control system, wherein preferably, further includes
Display instrument, with the gearbox control by CAN communication, to show parked state.
Wet dual-clutch automatic transmission P gear parking control method and control system provided by the invention, realize quiet
The function of state parking and dynamic parking improves the comfort level of parking safety and passenger in parking.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 is the stream that the wet dual-clutch automatic transmission P that an embodiment of the present invention provides keeps off parking control method
Cheng Tu；
Fig. 2 is that the wet dual-clutch automatic transmission P that another embodiment of the present invention provides keeps off parking control method
Flow chart；
Fig. 3 is that the wet dual-clutch automatic transmission P that another embodiment of the invention provides keeps off parking control method
Flow chart.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
As shown in Figure 1, the embodiment of the invention provides a kind of wet dual-clutch automatic transmission P to keep off parking controlling party
Method comprising following steps:
Step S100, the control unit in wet dual-clutch automatic transmission (TCU) receives parking enabling signal, this is stayed
Vehicle signal can control shift handle control system by driver and issue；
Step S200, judge vehicle-state, if vehicle remains static, enter step S300；If at vehicle
In driving status, and speed is in the vehicle speed range of setting, then enters step S400；If vehicle is in driving status, and
Speed is greater than speed setting value, then enters step S500；
The vehicle speed range wherein set can be depending on the situation of vehicle and vehicle in actual travel, in this implementation
In example, the vehicle speed range of the setting is greater than 0 and no more than 5m/s, which is 5m/s.
Step S300, the first parking signal is issued to electronic parking control system (EPB system), so that the electronic parking
Control system provides parking power, executes static parking；
Step S400, the second parking signal is issued to EPB system, so that EPB system provides deceleration, executes nonstatic and stay
Vehicle；
Wherein, above-mentioned deceleration can be 2.44m/s2, and during carrying out parking with the deceleration, driver will not
Biggish impact is experienced, so as to improve comfort level of driver during parking.
Step S500, third parking signal is issued to EPB system, to execute automatically controlled dynamic parking.
Wherein, parking signal can be formed by the parking operation of driver, such as pilot control shift handle, when this
After parking signal is received by the TCU in wet dual-clutch automatic transmission, by the further analysis to vehicle-state, come
Start corresponding park mode.
Specifically, as shown in Fig. 2, first parking signal may include standard parking signal and limping parking signal,
Step S300 is specifically included:
Step S310, whether detection EPB system is normal, if it is, entering step S311；If it is not, then entering step
S312；
Step S311, standard parking signal is issued to EPB system, so that EPB system executes static stay with standard parking power
Vehicle；
Step S312, limping parking signal is issued to EPB system, so that EPB system executes static stay with maximum parking power
Vehicle.
Wherein, standard parking power can be calculated according to car load, road gradient, to obtain and road locating for vehicle
The parking power that surface state matches.In addition, automobile can be made to enter limping park mode if EPB system is abnormal, due to
It is unable to judge accurately vehicle-state after into limping park mode, it, can be by loading most in order to guarantee safety when parking
Big parking power realizes parking.
Further, before step S400 further include:
Step S401, whether detection EPB system is normal；If it is, S400 is entered step, so that the offer of EPB system subtracts
Speed executes nonstatic parking, specifically, can carry out rear-wheel ANTI LOCK to vehicle with the deceleration of setting.
It should be noted that vehicle is in the deceleration downward driving that EPB system provides, speed constantly reduces, when speed subtracts
When as low as 0, the park mode of vehicle under static state can be continued to execute, that is, after entering step 400, enter back into step
200, to carry out real-time judge to vehicle-state, so that vehicle is entered corresponding park mode can execute when speed is down to 0
The parking of step 300 acts, to further ensure the security reliability of parking.
Further, if the testing result of step S401 be it is no, enter step S402；
Step S402, Xiang Chuantong parking control system issues traditional parking signal, to execute traditional parking, i.e., in EPB system
In the case where system failure, parking still may be implemented, ensure that the safety of vehicle driving.
Further, before step S500 further include:
Step S510, whether detection EPB system is normal, if it is, S500 is entered step, to realize that automatically controlled dynamic is stayed
Vehicle.
If it is not, then entering step S520；
Step S520, so that vehicle is kept sliding state, and enter step S200.It should be noted that since speed is greater than
5m/s is crumbled by traditional parking mode will lead to power shift gear when carrying out parking, therefore in the case where EPB thrashing,
Vehicle need to be made to continue to keep sliding state, gradually decrease speed by itself sliding for vehicle, and enter step 200 with reality
When judge the driving status of vehicle, that is, can be by being stayed to tradition when speed drops to greater than 0 and when no more than between 5m/s
Vehicle control issues traditional parking signal, to execute traditional parking.
Further, as shown in figure 3, before step S510 further include:
Step S501, whether detection electronic stabilizing control system (ESC system) is normal, if it is, entering step S502；
If it is not, then entering step S510；
Step S502, the 4th parking signal is issued to ESC system, to execute hydraulic dynamic parking.Wherein, ESC system master
Brake pressure can be controlled according to vehicle-state by, which, carries out vehicle deceleration, and the control of specific brake pressure can pass through hydraulic control
The mode of system is realized, is fed back by deceleration, is guaranteed safety and the comfort of vehicle braking.
The embodiment of the invention also provides a kind of wet dual-clutch automatic transmission P to keep off parking control system, uses
The wet dual-clutch automatic transmission P that any embodiment of that present invention provides keeps off parking control method, and the wet-type dual-clutch is certainly
Dynamic gearbox P gear parking control system includes shift handle control system, gearbox control, EPB system and instrument；Wherein,
Shift handle control system can be used for sending parking enabling signal；Gearbox control can be used for judging vehicle-state, such as
Fruit vehicle remains static, then issues the first parking signal to electronic parking control system；If vehicle is in driving status,
And speed is in the vehicle speed range of setting, then issues the second parking signal to electronic parking control system；If vehicle is in
Driving status, and speed is greater than speed setting value, issues third parking signal to electronic parking control system；Electronic parking control
The first parking signal that system can be used for being sent according to gearbox control provides parking power, executes static parking；Electronic parking
The second parking signal that control system is also used to be sent according to gearbox control provides deceleration, executes nonstatic parking；Electricity
The third parking signal that sub- parking control system is also used to be sent according to gearbox control executes automatically controlled dynamic parking.
Further, it further includes electronic stability control system that wet dual-clutch automatic transmission P, which keeps off parking control system,
System, is connected between electronic parking control system and gearbox control, for executing hydraulic dynamic parking.
Further, it further includes traditional parking control system that wet dual-clutch automatic transmission P, which keeps off parking control system,
System, is connected with gearbox control, and traditional parking signal for being sent according to gearbox control executes traditional parking.
Further, it further includes display instrument that wet dual-clutch automatic transmission P, which keeps off parking control system, with change
Fast case controller facilitates observation of the driver to parked state by CAN communication to show parked state.
Wet dual-clutch automatic transmission P gear parking control method and control system provided in an embodiment of the present invention, it is real
The function of having showed static parking and dynamic parking improves the comfort level of parking safety and passenger in parking.
Structure, feature and effect of the invention, the above institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (5)
1. a kind of wet dual-clutch automatic transmission P keeps off parking control method, which comprises the steps of:
Step S100, parking enabling signal is received；
Step S200, judge vehicle-state, if vehicle remains static, enter step S300；If vehicle is in row
State is sailed, and speed is in the vehicle speed range of setting, then enters step S400；If vehicle is in driving status, and speed
Greater than speed setting value, then S500 is entered step；
Step S300, the first parking signal is issued to electronic parking control system, so that the electronic parking control system provides
Parking power executes static parking；
Step S400, Xiang Suoshu electronic parking control system issues the second parking signal, so that the electronic parking control system
Deceleration is provided, nonstatic parking is executed；
Step S500, Xiang Suoshu electronic parking control system issues third parking signal, to execute automatically controlled dynamic parking；
First parking signal includes standard parking signal and limping parking signal, and step S300 is specifically included:
Step S310, whether normal the electronic parking control system is detected, if it is, entering step S311；If it is not, then
Enter step S312；
Step S311, Xiang Suoshu electronic parking control system issues the standard parking signal, so that the electronic parking controls
System executes static parking with standard parking power；
Step S312, Xiang Suoshu electronic parking control system issues the limping parking signal, so that the electronic parking controls
System executes static parking with maximum parking power.
2. wet dual-clutch automatic transmission P according to claim 1 keeps off parking control method, which is characterized in that
Before step S400 further include:
Step S401, whether normal the electronic parking control system is detected；If it is, entering step S400；If it is not, then
Enter step S402；
Step S402, Xiang Chuantong parking control system issues traditional parking signal, to execute traditional parking.
3. wet dual-clutch automatic transmission P according to claim 2 keeps off parking control method, which is characterized in that institute
Stating deceleration is 2.44m/s2.
4. wet dual-clutch automatic transmission P according to claim 1 keeps off parking control method, which is characterized in that
Before step S500 further include:
Step S510, whether normal the electronic parking control system is detected, if it is, entering step S500；If it is not, then
Enter step S520；
Step S520, so that vehicle is kept sliding state, and enter step S200.
5. wet dual-clutch automatic transmission P according to claim 4 keeps off parking control method, which is characterized in that
Before step S510 further include:
Step S501, whether detection electronic stabilizing control system is normal, if it is, entering step S502；If it is not, then into
Step S510；
Step S502, Xiang Suoshu electronic stabilizing control system issues the 4th parking signal, to execute hydraulic dynamic parking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711085846.XA CN107725769B (en) | 2017-11-07 | 2017-11-07 | Wet dual-clutch automatic transmission P keeps off parking control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711085846.XA CN107725769B (en) | 2017-11-07 | 2017-11-07 | Wet dual-clutch automatic transmission P keeps off parking control method |
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| Publication Number | Publication Date |
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| CN107725769A CN107725769A (en) | 2018-02-23 |
| CN107725769B true CN107725769B (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711085846.XA Active CN107725769B (en) | 2017-11-07 | 2017-11-07 | Wet dual-clutch automatic transmission P keeps off parking control method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112109559A (en) * | 2020-09-01 | 2020-12-22 | 安徽江淮汽车集团股份有限公司 | Electric automobile parking control system and method |
| CN113007347B (en) * | 2021-03-10 | 2022-03-04 | 中国第一汽车股份有限公司 | Transmission P-gear parking control method and system, vehicle and storage medium |
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| CN102741100A (en) * | 2010-01-29 | 2012-10-17 | 丰田自动车株式会社 | Parking and stopping control system |
| CN103574021A (en) * | 2012-08-09 | 2014-02-12 | 上海大众汽车有限公司 | Control method for parking lock system of electric vehicle |
| CN103847621A (en) * | 2014-01-16 | 2014-06-11 | 浙江吉利控股集团有限公司 | Automobile capable of preventing parking rear-end collision and method for preventing parking rear-end collision |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012200178B4 (en) * | 2012-01-09 | 2022-01-20 | Ford Global Technologies, Llc | Method of operating a mechanical parking brake |
| CN102729966B (en) * | 2012-07-09 | 2014-03-12 | 东风汽车公司 | Method for realizing dynamic parking in electronic parking brake system |
| US9409552B2 (en) * | 2012-08-29 | 2016-08-09 | GM Global Technology Operations LLC | Electronic park brake module and system and method for use |
| JP5937226B2 (en) * | 2012-11-02 | 2016-06-22 | 本田技研工業株式会社 | Vehicle parking control device |
| CN204895451U (en) * | 2015-08-10 | 2015-12-23 | 苏州萨克汽车科技有限公司 | Electron manual brake braking system |
| CN105196993A (en) * | 2015-10-12 | 2015-12-30 | 中国第一汽车股份有限公司 | Emergency braking method achieved through electrical park brake |
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- 2017-11-07 CN CN201711085846.XA patent/CN107725769B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102741100A (en) * | 2010-01-29 | 2012-10-17 | 丰田自动车株式会社 | Parking and stopping control system |
| CN103574021A (en) * | 2012-08-09 | 2014-02-12 | 上海大众汽车有限公司 | Control method for parking lock system of electric vehicle |
| CN103847621A (en) * | 2014-01-16 | 2014-06-11 | 浙江吉利控股集团有限公司 | Automobile capable of preventing parking rear-end collision and method for preventing parking rear-end collision |
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