CN112628397A - Fault processing method and device - Google Patents

Fault processing method and device Download PDF

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Publication number
CN112628397A
CN112628397A CN201910905869.3A CN201910905869A CN112628397A CN 112628397 A CN112628397 A CN 112628397A CN 201910905869 A CN201910905869 A CN 201910905869A CN 112628397 A CN112628397 A CN 112628397A
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China
Prior art keywords
parking
vehicle
piston
return
controlling
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Pending
Application number
CN201910905869.3A
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Chinese (zh)
Inventor
张涛
裴玲
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SAIC Motor Corp Ltd
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SAIC Motor Corp Ltd
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Priority to CN201910905869.3A priority Critical patent/CN112628397A/en
Publication of CN112628397A publication Critical patent/CN112628397A/en
Pending legal-status Critical Current

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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
    • F16H63/02—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
    • 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
    • F16H63/3491—Emergency release or engagement of parking locks or brakes
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

The application discloses a fault handling method, which specifically comprises the steps of obtaining the position of a handle of a vehicle and the position of a parking piston, and when the position of the handle of the vehicle indicates that the state of the vehicle is in a non-parking state, if the position of the parking piston is smaller than a threshold value of a parking unlocking position, the situation that the vehicle is possibly in an unexpected parking behavior is indicated, and therefore the parking piston is controlled to return to the parking unlocking position, and the vehicle is made to return to the non-parking state. Therefore, by the method provided by the embodiment of the application, the vehicle can be prevented from generating unexpected parking behavior to a certain extent, and the problems that the gearbox is violently impacted, the whole vehicle is suddenly static and user experience is not good due to the unexpected parking behavior at low vehicle speed in the traditional technology are solved.

Description

Fault processing method and device
Technical Field
The present application relates to the field of vehicles, and in particular, to a method and an apparatus for processing a fault.
Background
Along with the development of science and technology, an automatic transmission electro-hydraulic parking system appears, and the automatic transmission parking system can replace a traditional manual parking system to realize the function of controlling the parking of a vehicle. Fig. 1 is a schematic diagram of a partial structure of an automatic transmission electro-hydraulic parking system provided by an embodiment of the application. Specifically, when a driver performs a parking operation, a transmission or an electronic gear controller (not shown in fig. 1) in the automatic transmission parking system drives a parking electromagnet to unlock the locking plate 101, and the parking piston 102 pushes the operating lever 104 to a position where the parking pawl 105 is pushed into the parking gear 106 by the action of the return spring 103. When a driver executes parking unlocking operation, a gearbox or an electronic gear controller drives a parking electromagnetic valve 107, a parking piston 102 pushes an operating rod 104 to the reverse direction under the action of high-pressure hydraulic oil, a parking pawl 105 withdraws from a parking gear 106 under the action of a reset torsion spring, the parking piston 102 is locked by a locking piece, and parking unlocking operation is completed.
In an automatic transmission parking system, if an electric/hydraulic/mechanical part fails, such as the locking plate 101 abnormally pops up, parking may occur (i.e., an unexpected parking behavior occurs) when the driver does not have an intention to park.
In order not to affect driving safety, the current automatic transmission parking system cannot make the parking pawl 105 enter the parking gear 106 when the vehicle speed is high, for example, the vehicle speed is more than 5 kilometers per hour, through the special design of the operating lever 104. Thereby avoiding the occurrence of parking when the driver has no intention to park. However, in this way, the repeated impact sound between the parking pawl 105 and the parking gear 106 and the operating lever 104 causes a loud noise, and the unexpected parking behavior at low vehicle speeds causes a violent impact of the transmission and sudden standstill of the entire vehicle, which is not good for the user experience.
Disclosure of Invention
The technical problem to be solved by the application is that unexpected parking behavior under low vehicle speed in the prior art can cause fierce impact of a gearbox, sudden rest of the whole vehicle and poor user experience, and a fault processing method and device are provided.
In a first aspect, an embodiment of the present application provides a fault handling method, where the method includes:
acquiring the position of a vehicle handle and acquiring the position of a parking piston;
and if the position of the vehicle handle indicates that the vehicle is in a non-parking state and the position of the parking piston is smaller than a threshold value of a parking unlocking position, controlling the parking piston to return to the parking unlocking position.
Optionally, the acquiring the position of the parking piston includes:
the position of the parking piston is detected by a parking position sensor.
Optionally, the controlling the parking piston to return to the parking-unlocked position includes:
and driving a parking solenoid valve to build pressure so that the parking piston returns to the parking unlocking position.
Optionally, the controlling the parking piston to return to the parking-unlocked position includes:
and controlling the parking piston to return to the parking unlocking position in a multi-time control mode.
Optionally, the method further includes:
and if the parking piston cannot return to the parking unlocking position, canceling the pressure building operation of the parking electromagnetic valve.
Optionally, the method further includes:
controlling a preset instrument of the vehicle to display that the vehicle is in an unexpected parking behavior; and/or the presence of a gas in the gas,
and controlling the lighting of a signal lamp on the vehicle, which reflects the occurrence of the unexpected parking behavior.
In a second aspect, an embodiment of the present application provides a fault handling apparatus, where the apparatus includes:
an acquisition unit for acquiring a position of a handle of a vehicle and a position of a parking piston;
the first control unit is used for controlling the parking piston to return to a parking unlocking position if the position of the vehicle handle indicates that the vehicle is in a non-parking state and the position of the parking piston is smaller than a threshold value of the parking unlocking position.
Optionally, the acquiring the position of the parking piston includes:
the position of the parking piston is detected by a parking position sensor.
Optionally, the controlling the parking piston to return to the parking-unlocked position includes:
and driving a parking solenoid valve to build pressure so that the parking piston returns to the parking unlocking position.
Optionally, the controlling the parking piston to return to the parking-unlocked position includes:
and controlling the parking piston to return to the parking unlocking position in a multi-time control mode.
Optionally, the apparatus further comprises:
and the canceling unit is used for canceling the pressure building operation of the parking solenoid valve if the parking piston cannot return to the parking unlocking position.
Optionally, the apparatus further comprises:
the second control unit is used for controlling a preset instrument of the vehicle to display that the vehicle has unexpected parking behavior; and/or the presence of a gas in the gas,
and the third control unit is used for controlling the lighting of a signal lamp which reflects the occurrence of the unexpected parking behavior on the vehicle.
Compared with the prior art, the embodiment of the application has the following advantages:
the embodiment of the application provides a fault handling method, which specifically includes the steps of obtaining the position of a handle of a vehicle and the position of a parking piston, and when the position of the handle of the vehicle indicates that the state of the vehicle is in an unparked state, if the position of the parking piston is smaller than a threshold value of a parking unlocking position, it indicates that an unexpected parking behavior of the vehicle is possible, so that the parking piston is controlled to return to the parking unlocking position, and the vehicle is caused to return to the unparked state. Therefore, by the method provided by the embodiment of the application, the vehicle can be prevented from generating unexpected parking behavior to a certain extent, and the problems that the gearbox is violently impacted, the whole vehicle is suddenly static and user experience is not good due to the unexpected parking behavior at low vehicle speed in the traditional technology are solved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a partial structure of an electro-hydraulic parking system of an automatic transmission provided by an embodiment of the application;
fig. 2 is a schematic flowchart of a fault handling method according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a fault handling apparatus according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The inventor of the present application has studied and found that, in the conventional art, in the automatic transmission parking system, if an electric/hydraulic/mechanical part fails, for example, if the locking plate 101 is abnormally popped up due to failure, parking may occur (i.e., an unexpected parking behavior occurs) when the driver does not intend to park. In order not to affect driving safety, the current automatic transmission parking system cannot enter the parking gear 106 by the parking pawl 105 when the vehicle is driven at a high speed, for example, the vehicle speed is more than 5 kilometers per hour, through the special design of the operating lever 104. Thereby avoiding the occurrence of parking when the driver has no intention to park. However, in this way, the repeated impact sound between the parking pawl 105 and the parking gear 106 and the operating rod 104 can cause large noise, and an unexpected parking behavior at a low vehicle speed can cause a violent impact of the transmission case and sudden stop of the whole vehicle, because the parking pawl 105 enters the parking gear 106 and is in mechanical rigid fit, the degree of freedom can suddenly become 0, the parking action is similar to that when the vehicle hits the wall at about 5kph, the energy of all vehicles is instantly absorbed by the transmission system without buffering, so that the violent impact of the transmission case and the sudden stop of the whole vehicle can be caused, and the user experience is not good.
In order to solve the above problem, an embodiment of the present application provides a fault handling method, specifically, a position of a handle of a vehicle and a position of a parking piston are obtained, when the position of the handle of the vehicle indicates that a state of the vehicle is an unparked state, and if the position of the parking piston is smaller than a threshold value of a parking unlocking position, it indicates that an unexpected parking behavior of the vehicle is likely to occur, so that the parking piston is controlled to return to the parking unlocking position, thereby returning the vehicle to the unparked state. Therefore, by the method provided by the embodiment of the application, the vehicle can be prevented from generating unexpected parking behavior to a certain extent, and the problems that the gearbox is violently impacted, the whole vehicle is suddenly static and user experience is not good due to the unexpected parking behavior at low vehicle speed in the traditional technology are solved.
Various non-limiting embodiments of the present application are described in detail below with reference to the accompanying drawings.
Exemplary method
Referring to fig. 2, the figure is a schematic flow chart of a fault handling method according to an embodiment of the present application. In this embodiment, the fault handling method may be executed by a controller, for example, the controller may be an existing controller on a vehicle, such as a transmission controller, or an electronic gear controller, and the controller may also be a controller newly added to the vehicle, which is not specifically limited in this embodiment of the application.
The fault handling method provided by the embodiment of the present application can be implemented, for example, by the following steps S201 to S202.
S201: the position of the vehicle handle is obtained, and the position of the parking piston is obtained.
S202: and if the position of the vehicle handle indicates that the vehicle is in a non-parking state and the position of the parking piston is smaller than a threshold value of a parking unlocking position, controlling the parking piston to return to the parking unlocking position. The embodiment of the present application does not specifically limit the specific implementation manner of obtaining the position of the vehicle handle, and as an example, the position of the vehicle handle may be obtained by a handle position sensor.
It will be appreciated that in practice, if the position of the vehicle handle indicates that the vehicle is in a parked state, this indicates that the current parking behavior of the vehicle is controlled by the user and is not an undesired parking behavior. If the position of the vehicle handle indicates that the vehicle is in the non-parking state, the behavior may be an undesired parking behavior if a parking behavior occurs.
In the embodiment of the present application, whether a parking behavior of the vehicle occurs may be reflected in consideration of the position of the parking piston, and in view of this, in the embodiment of the present application, the position of the parking piston may also be obtained so as to determine whether the parking behavior of the vehicle occurs according to the position of the parking piston.
The embodiment of the present application does not specifically limit a specific implementation manner of acquiring the position of the parking piston, and considering that a parking position sensor (such as 108 shown in fig. 1) is provided in the electric parking system of the automatic transmission, in an implementation manner of the embodiment of the present application, the position of the parking piston may be acquired through a parking sensor, and specifically, the value of the parking sensor may be acquired, so as to obtain the position of the parking piston.
In consideration of the fact that in practical application, if the vehicle does not have the parking behavior, the position of the parking piston is greater than or equal to the threshold value of the parking unlocking position, and correspondingly, if the position of the parking piston is smaller than the threshold value of the parking unlocking position, the vehicle is determined to have the parking behavior.
The embodiment of the application does not specifically limit the threshold value of the parking and unlocking position, and the specific value of the threshold value of the parking and unlocking position is determined according to the relevant parameters of the vehicle.
In the embodiment of the application, if the position of the vehicle handle indicates that the vehicle is in a non-parking state, and the position of the parking piston is smaller than a parking unlocking position threshold value, the parking piston is controlled to return to the parking unlocking position, so that the vehicle returns to the non-parking state, and the vehicle is prevented from being subjected to an unexpected parking behavior.
The embodiment of the present application does not specifically limit the specific implementation manner of controlling the parking piston to return to the parking unlocking position, and as an example, a parking solenoid valve may be driven to build pressure, so that the parking piston returns to the parking unlocking position.
In the embodiment of the present application, when the parking piston is controlled to return to the parking unlocking position, a one-time control manner may be adopted, or a multiple-time control manner may be adopted, for example, the electromagnetic valve may be driven multiple times to reduce the pressure, so that the parking piston gradually returns to the parking unlocking position.
As can be seen from the above description, with the fault handling method provided in the embodiment of the present application, the position of the handle of the vehicle and the position of the parking piston may be obtained, and when the position of the handle of the vehicle indicates that the state of the vehicle is the non-parking state, if the position of the parking piston is smaller than the threshold value of the parking unlocking position, it indicates that there is a possibility that an unexpected parking behavior occurs in the vehicle, so that the parking piston is controlled to return to the parking unlocking position, and the vehicle returns to the non-parking state. Therefore, by the method provided by the embodiment of the application, the vehicle can be prevented from generating unexpected parking behavior to a certain extent, and the problems that the gearbox is violently impacted, the whole vehicle is suddenly static and user experience is not good due to the unexpected parking behavior at low vehicle speed in the traditional technology are solved.
It is understood that, in practical applications, when the automatic transmission electro-hydraulic parking system fails, even if the parking piston is controlled to return to the parking-unlocked position multiple times, the parking piston cannot return to the parking-unlocked position in practice due to the failure of the dynamic transmission electro-hydraulic parking system. For such a case that the position of the parking piston is not returned to the parking unlock position after the aforementioned operation of depressurizing the driving parking solenoid valve is performed, the operation of depressurizing the driving parking solenoid valve may be cancelled, and the execution of the ineffective operation is avoided.
In order to remind a driver of the specific situation when the vehicle has an unexpected parking behavior due to the fault of the electro-hydraulic parking system of the automatic transmission, in the embodiment of the application, a preset instrument of the vehicle can be controlled to display the unexpected parking behavior of the vehicle, or a signal lamp for displaying the unexpected parking behavior of the vehicle is arranged on the vehicle, and the signal lamp for displaying the unexpected parking behavior of the vehicle is controlled to be turned on when the unexpected parking behavior of the vehicle occurs.
Exemplary device
Based on the fault processing method provided by the above embodiment, the embodiment of the present application further provides a fault processing apparatus, which is described below with reference to the accompanying drawings.
Referring to fig. 3, the figure is a schematic structural diagram of a fault handling apparatus according to an embodiment of the present application. The fault handling apparatus 300 provided in the embodiment of the present application may include, for example, an obtaining unit 301 and a first control unit 302.
An acquisition unit 301 for acquiring a position of a vehicle handle and a position of a parking piston;
a first control unit 302, configured to control the parking piston to return to the parking-unlocked position if the position of the vehicle handle indicates that the vehicle is in the non-parking state and the position of the parking piston is smaller than a threshold value of the parking-unlocked position. Optionally, the acquiring the position of the parking piston includes:
the position of the parking piston is detected by a parking position sensor.
Optionally, the controlling the parking piston to return to the parking-unlocked position includes:
and driving a parking solenoid valve to build pressure so that the parking piston returns to the parking unlocking position.
Optionally, the controlling the parking piston to return to the parking-unlocked position includes:
and controlling the parking piston to return to the parking unlocking position in a multi-time control mode.
Optionally, the apparatus further comprises:
and the canceling unit is used for canceling the pressure building operation of the parking solenoid valve if the parking piston cannot return to the parking unlocking position.
Optionally, the apparatus further comprises:
the second control unit is used for controlling a preset instrument of the vehicle to display that the vehicle has unexpected parking behavior; and/or the presence of a gas in the gas,
and the third control unit is used for controlling the lighting of a signal lamp which reflects the occurrence of the unexpected parking behavior on the vehicle.
Since the apparatus 300 is an apparatus corresponding to the method provided in the above method embodiment, and the specific implementation of each unit of the apparatus 300 is the same as that of the above method embodiment, for the specific implementation of each unit of the apparatus 300, reference may be made to the description part of the above method embodiment, and details are not repeated here.
As can be seen from the above description, with the fault handling device provided in the embodiments of the present application, the position of the handle of the vehicle and the position of the parking piston may be obtained, and when the position of the handle of the vehicle indicates that the state of the vehicle is the non-parking state, if the position of the parking piston is smaller than the threshold value of the parking unlocking position, it indicates that there is a possibility that an unexpected parking behavior occurs in the vehicle, so that the parking piston is controlled to return to the parking unlocking position, so that the vehicle returns to the non-parking state. Therefore, by means of the device provided by the embodiment of the application, the vehicle can be prevented from generating unexpected parking behaviors to a certain extent, and the problems that in the prior art, the unexpected parking behaviors under low vehicle speed can cause violent impact of a gearbox, the whole vehicle is suddenly static, and user experience is not good are solved.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the attached claims
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (12)

1. A method of fault handling, the method comprising:
acquiring the position of a vehicle handle and acquiring the position of a parking piston;
and if the position of the vehicle handle indicates that the vehicle is in a non-parking state and the position of the parking piston is smaller than a threshold value of a parking unlocking position, controlling the parking piston to return to the parking unlocking position.
2. The method of claim 1, wherein the obtaining a position of a parking piston comprises:
the position of the parking piston is detected by a parking position sensor.
3. The method of claim 1, wherein the controlling the parking piston to return to a parking unlocked position comprises:
and driving a parking solenoid valve to build pressure so that the parking piston returns to the parking unlocking position.
4. The method of any of claims 1-3, wherein the controlling the parking piston to return to the parking unlocked position comprises:
and controlling the parking piston to return to the parking unlocking position in a multi-time control mode.
5. The method of claim 4, further comprising:
and if the parking piston cannot return to the parking unlocking position, canceling the pressure building operation of the parking electromagnetic valve.
6. The method of claim 5, further comprising:
controlling a preset instrument of the vehicle to display that the vehicle is in an unexpected parking behavior; and/or the presence of a gas in the gas,
and controlling the lighting of a signal lamp on the vehicle, which reflects the occurrence of the unexpected parking behavior.
7. A fault handling apparatus, characterized in that the apparatus comprises:
an acquisition unit for acquiring a position of a handle of a vehicle and a position of a parking piston;
the first control unit is used for controlling the parking piston to return to a parking unlocking position if the position of the vehicle handle indicates that the vehicle is in a non-parking state and the position of the parking piston is smaller than a threshold value of the parking unlocking position.
8. The apparatus of claim 7, wherein the obtaining a position of a parking piston comprises:
the position of the parking piston is detected by a parking position sensor.
9. The apparatus of claim 7, wherein the controlling the parking piston to return to the parking unlocked position comprises:
and driving a parking solenoid valve to build pressure so that the parking piston returns to the parking unlocking position.
10. The apparatus of any one of claims 7-9, wherein the controlling the parking piston to return to the parking unlocked position comprises:
and controlling the parking piston to return to the parking unlocking position in a multi-time control mode.
11. The apparatus of claim 10, further comprising:
and the canceling unit is used for canceling the pressure building operation of the parking solenoid valve if the parking piston cannot return to the parking unlocking position.
12. The apparatus of claim 11, further comprising:
the second control unit is used for controlling a preset instrument of the vehicle to display that the vehicle has unexpected parking behavior; and/or the presence of a gas in the gas,
and the third control unit is used for controlling the lighting of a signal lamp which reflects the occurrence of the unexpected parking behavior on the vehicle.
CN201910905869.3A 2019-09-24 2019-09-24 Fault processing method and device Pending CN112628397A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910905869.3A CN112628397A (en) 2019-09-24 2019-09-24 Fault processing method and device

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Application Number Priority Date Filing Date Title
CN201910905869.3A CN112628397A (en) 2019-09-24 2019-09-24 Fault processing method and device

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Publication Number Publication Date
CN112628397A true CN112628397A (en) 2021-04-09

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Publication number Priority date Publication date Assignee Title
CN1916447A (en) * 2005-08-19 2007-02-21 现代自动车株式会社 Parking brake apparatus for automatic transmission vehicle and method for controlling operation thereof
US20100250062A1 (en) * 2007-08-31 2010-09-30 Renault S.A.S. System for controlling the release of an automatic parking brake device onboard an automobile
US20110202246A1 (en) * 2010-02-17 2011-08-18 Ryan Lindsay Vehicle parking brake control system
CN103649603A (en) * 2011-06-21 2014-03-19 戴姆勒股份公司 Motor vehicle parking lock device having at least one locking element
CN103671901A (en) * 2013-12-29 2014-03-26 长城汽车股份有限公司 P-gear mechanically-unlocking device of automatic gear shifter
CN104279995A (en) * 2014-10-28 2015-01-14 重庆御捷汽车部件有限公司 Parking cable stroke change amount measuring device
CN106195258A (en) * 2016-07-15 2016-12-07 深圳比亚迪戴姆勒新技术有限公司 The locking method of a kind of park position and system
CN106523698A (en) * 2016-12-30 2017-03-22 盛瑞传动股份有限公司 P-gear locking control device
CN107795684A (en) * 2016-09-06 2018-03-13 马自达汽车株式会社 The control device of automatic transmission
CN108688559A (en) * 2017-04-05 2018-10-23 深圳腾势新能源汽车有限公司 A kind of vehicle and its P grades of monitoring systems
CN109642508A (en) * 2016-11-10 2019-04-16 加特可株式会社 The control device of vehicle and the control method of vehicle

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1916447A (en) * 2005-08-19 2007-02-21 现代自动车株式会社 Parking brake apparatus for automatic transmission vehicle and method for controlling operation thereof
US20100250062A1 (en) * 2007-08-31 2010-09-30 Renault S.A.S. System for controlling the release of an automatic parking brake device onboard an automobile
US20110202246A1 (en) * 2010-02-17 2011-08-18 Ryan Lindsay Vehicle parking brake control system
CN103649603A (en) * 2011-06-21 2014-03-19 戴姆勒股份公司 Motor vehicle parking lock device having at least one locking element
CN103671901A (en) * 2013-12-29 2014-03-26 长城汽车股份有限公司 P-gear mechanically-unlocking device of automatic gear shifter
CN104279995A (en) * 2014-10-28 2015-01-14 重庆御捷汽车部件有限公司 Parking cable stroke change amount measuring device
CN106195258A (en) * 2016-07-15 2016-12-07 深圳比亚迪戴姆勒新技术有限公司 The locking method of a kind of park position and system
CN107795684A (en) * 2016-09-06 2018-03-13 马自达汽车株式会社 The control device of automatic transmission
CN109642508A (en) * 2016-11-10 2019-04-16 加特可株式会社 The control device of vehicle and the control method of vehicle
CN106523698A (en) * 2016-12-30 2017-03-22 盛瑞传动股份有限公司 P-gear locking control device
CN108688559A (en) * 2017-04-05 2018-10-23 深圳腾势新能源汽车有限公司 A kind of vehicle and its P grades of monitoring systems

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Application publication date: 20210409