CN113561949A - Vehicle electronic parking control method, device and system and automobile - Google Patents
Vehicle electronic parking control method, device and system and automobile Download PDFInfo
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- CN113561949A CN113561949A CN202011349321.4A CN202011349321A CN113561949A CN 113561949 A CN113561949 A CN 113561949A CN 202011349321 A CN202011349321 A CN 202011349321A CN 113561949 A CN113561949 A CN 113561949A
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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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
Abstract
The embodiment of the invention provides a vehicle electronic parking control method, a device and a system and an automobile, and relates to the technical field of automobile brake control, wherein the method comprises the following steps: responding to the request signal, and acquiring a gear signal and an operation parameter of the vehicle; and when the gear signal is a parking gear signal and the running state of the vehicle is judged to be a first parking state according to the running parameters within the preset delay, controlling the electronic parking executing mechanism to output a first braking force so as to prevent the wheels from being locked by the electronic parking executing mechanism. According to the invention, when the running state of the vehicle is judged to be the first predetermined parking state through the gear signal and the running parameter of the vehicle, the electronic parking executing mechanism is controlled to output the first braking force so as to prevent the friction plate and the brake disc of the brake from being pressed, so that the situation that the friction plate and the brake disc cannot be normally separated due to long-time pressing in rainy days or low-temperature days is avoided, and meanwhile, the static state of the vehicle can be kept through parking of the parking gear.
Description
Technical Field
The invention relates to the technical field of automobile brake control, in particular to an electronic parking control method and device for a vehicle, an electronic parking control system for the vehicle and an automobile.
Background
An Electronic Parking Brake (EPB) of an automobile is a technology for realizing Parking braking in an electronic control mode, and replaces a traditional manual pull-type Parking Brake system, so that the operation of a user is simplified, the comfort and the convenience of the user are improved, but the Parking braking force (pressing force between a Brake friction plate and a Brake disc) cannot be adjusted, and the user cannot autonomously select the size of the Parking braking force according to the environment and the use condition. Meanwhile, the parking automatic parking strategy of the conventional automobile electronic parking system has no function of independently and controllably starting parking with different braking forces by a user, and the automatic parking function can be started by the automobile after flameout, so that the parking braking force is large. In rainy seasons in the south and severe cold seasons in the north, a user cannot independently select the parking braking force according to the environment and the use conditions, and after the automobile is parked for a long time after the automobile is started, the friction plate and the brake disc are made of metal base materials, so that the rear brake disc and the friction plate can be corroded and bonded together after the friction plate and the brake disc are tightly pressed for hours under the action of rainwater in rainy seasons in the south; and for northern severe cold areas, the brake disc and the friction plate can be frozen together, after the vehicle is restarted and the electronic parking is released, because the friction plate and the brake disc are bonded and can not be released and separated, when the vehicle is driven and started, the friction plate and the brake disc are forcibly and rigidly separated under the action of huge torque, the friction plate is easily damaged or separated from a friction plate bottom plate under the action of rigid shearing force, potential safety hazards are brought to driving due to potential damage of the friction plate, the service life of the friction plate is greatly reduced, and the use cost of a user is increased.
Disclosure of Invention
The invention aims to provide a vehicle electronic parking control method, a vehicle electronic parking control device, a vehicle electronic parking control system and a vehicle, and aims to solve the problem that a brake disc and a friction disc cannot be separated normally in rainy days or winter due to uncontrollable braking force of an existing vehicle electronic parking system.
In order to achieve the above object, in a first aspect of the present invention, there is provided a vehicle electronic parking control method including:
responding to a request signal, and acquiring a gear signal and an operation parameter of the vehicle;
and when the gear signal is a parking gear signal and the running state of the vehicle is judged to be a first parking state according to the running parameters within a preset time delay, controlling the electronic parking executing mechanism to output a first braking force so as to prevent wheels from being locked by the electronic parking executing mechanism.
Optionally, the determining, by the operating parameter, that the vehicle operating state is the first parking state includes:
and when the vehicle is judged to be in a flameout state according to the ignition switch position signal, determining that the vehicle running state is a first parking state.
Optionally, the method further comprises:
and when the gear signal is a non-parking gear signal and the running state of the vehicle is judged to be a second parking state according to the running parameters within the preset time delay, controlling the electronic parking executing mechanism to apply the first braking force to the wheels when the vehicle is in a flameout state, so that the wheels are not locked by the electronic parking executing mechanism.
Optionally, the operation parameter includes a vehicle speed signal, and the determining that the vehicle operation state is the second stop state according to the operation parameter includes:
and when the vehicle speed is judged to be 0 according to the vehicle speed signal, determining that the vehicle running state is a second parking state.
In a second aspect of the present invention, there is provided a vehicle electronic parking control device comprising:
the data acquisition module is configured to respond to a request signal and acquire a gear signal and an operation parameter of the vehicle;
and the parking control module is configured to control the electronic parking executing mechanism to output a first braking force when the gear signal is a parking gear signal and the vehicle running state is judged to be a first parking state according to the running parameters within a preset time delay, so that wheels are not locked by the electronic parking executing mechanism.
Optionally, the operating parameter comprises an ignition switch position signal, the parking control module is further configured to:
and when the vehicle is judged to be in a flameout state according to the ignition switch position signal, determining that the vehicle running state is a first parking state.
Optionally, the parking control module is further configured to:
and when the gear signal is a non-parking gear signal and the running state of the vehicle is judged to be a second parking state according to the running parameters within the preset time delay, controlling the electronic parking executing mechanism to apply the first braking force to the wheels when the vehicle is in a flameout state, so that the wheels are not locked by the electronic parking executing mechanism.
Optionally, the operating parameter comprises a vehicle speed signal, the parking control module is further configured to:
and when the vehicle speed is judged to be 0 according to the vehicle speed signal, determining that the vehicle running state is a second parking state.
In a third aspect of the present invention, there is provided a vehicle electronic parking control system comprising:
the data acquisition device is used for acquiring the running parameters of the vehicle;
the human-computer interaction device is used for receiving an input request signal; and
the electronic parking control device for the vehicle is described above.
In a fourth aspect of the invention, an automobile is provided that includes the vehicle electronic parking control apparatus described above.
According to the technical scheme, the gear signal and the operation parameter of the vehicle are obtained through triggering based on the request signal of the user, the electronic parking executing mechanism is controlled to output the first braking force when the gear signal is the parking gear signal and the operation state of the vehicle is judged to be the first predetermined parking state according to the operation parameter within the preset delay time, so that the parking braking force output by the electronic parking executing mechanism is controlled not to enable the brake friction plate and the brake disc to be pressed due to overlarge pressing force, the situation that the friction plate and the brake disc cannot be normally separated due to long-time pressing in rainy days or low-temperature days is avoided, and meanwhile the static state of the vehicle can be kept through parking of the parking gear.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a flowchart of a method for electronic parking control of a vehicle according to a preferred embodiment of the present invention;
FIG. 2 is a block diagram of an electronic parking system provided in a preferred embodiment of the present invention;
FIG. 3 is a schematic diagram of a UI provided by the preferred embodiment of the invention;
FIG. 4 is a flow chart of the logic control of the rain and snow parking mode provided by the preferred embodiment of the present invention;
FIG. 5 is a control flow chart of an electronic parking control method for a vehicle according to a preferred embodiment of the present invention;
FIG. 6 is a schematic diagram of signal interaction between a UI provided by the preferred embodiment of the invention and an electronic parking control unit;
fig. 7 is a schematic block diagram of an electronic parking control apparatus for a vehicle according to a preferred embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1, in a first aspect of the present invention, there is provided a vehicle electronic parking control method including:
responding to the request signal, and acquiring a gear signal and an operation parameter of the vehicle;
and when the gear signal is a parking gear signal and the running state of the vehicle is judged to be a first parking state according to the running parameters within the preset delay, controlling the electronic parking executing mechanism to output a first braking force so as to prevent the wheels from being locked by the electronic parking executing mechanism.
Therefore, in the embodiment, the gear signal and the operation parameter of the vehicle are obtained through triggering based on the request signal of the user, and when the gear signal is the parking gear signal and the operation state of the vehicle can be judged to be the predetermined first parking state according to the operation parameter within the preset delay, the electronic parking executing mechanism is controlled to output the first braking force, so that the parking braking force output by the electronic parking executing mechanism is controlled not to press the brake friction plate and the brake disc due to overlarge pressing force, the situation that the friction plate and the brake disc cannot be normally separated due to long-time pressing in rainy days or low-temperature days is avoided, and the static state of the vehicle can be kept through parking of the parking gear.
In one embodiment of the present invention, as shown in fig. 2, in the electronic parking system, the method of the present invention may be integrated into an existing electronic parking control unit (EPB), for example, as a function module, a logic module such as a rain and snow parking mode is integrated in an existing electronic parking control unit, meanwhile, a request signal of a user is received through a human-computer interaction UI interface, for example, as shown in FIG. 3, a switch option control of a rain and snow parking mode is provided through a vehicle-mounted touch screen, when the switch option control for selecting the rain and snow parking mode is on, a request signal for selecting the rain and snow parking mode is generated to activate the logic module of the rain and snow parking mode to execute the steps of the method of the invention, and simultaneously, in the electronic parking system of the present embodiment, an existing electronic parking control logic is integrated in the electronic parking control unit as a general electronic parking mode logic module. The electronic parking actuating mechanism is an actuating unit of an electronic parking system and has the structure of the prior art, and comprises a set of electromechanical actuating mechanism controlled by an electronic parking control unit through current to control the pressing force of parking brake so as to control the brake disc and the friction plate of a brake to press tightly to lock wheels, or control the brake disc and the friction plate of the brake to separate so as to prevent the wheels from being locked. In the ordinary electronic parking mode, the electronic parking control unit executes a specified parking braking force, namely a second braking force, on the rear wheel brake disc and the friction disc through pre-calibration and a corresponding compensation mechanism, so that the pressing force between the brake friction disc and the brake disc, generally the parking braking force output by the electronic parking control unit is larger to bear the main holding force of the vehicle in a static state.
Specifically, the control logic of the existing electronic parking system during parking includes: a driver lifts the electronic parking button, and the electronic parking system drives the electronic parking actuating mechanism to press the friction plate of the rear wheel brake to enter a parking state; engaging a P gear: the vehicle is in a static state, any gear is switched to a P gear, and the vehicle automatically enters a parking state; stopping and extinguishing: and in the vehicle static state, after the vehicle is flamed out, the vehicle automatically enters the parking state. However, under current electron parking system, the braking force of automatic parking often is unadjustable, the user can't be according to environment and service condition state of independently selecting the electron parking, in rainy season in the south and northern severe cold season, after the automatic parking, park for a long time and can lead to brake disc and friction disc corrosion bonding unable normal separation together, when the vehicle travel starting, thereby cause the friction disc to damage through huge moment of torsion forced separation, and simultaneously, when brake disc and friction disc forced separation, can send huge "slamming" sound, lead to user experience poor. As shown in fig. 4 to 5, in the present embodiment, after the user selects the rain and snow parking mode, the gear signal and the operation parameters of the vehicle are first obtained, for example, the gear signal of the vehicle can be obtained through the input unit of the gear shifter of the vehicle, and the operation parameters of the vehicle include the position signal of the ignition switch and the vehicle speed signal. When the gear signal is a parking gear signal, namely a P gear signal, judging that a user is likely to park, continuously acquiring the operating parameters of the vehicle within a preset time delay, for example, 10S, judging whether the operating state of the vehicle meets a preset first parking state according to the operating parameters of the vehicle, and controlling the electronic parking executing mechanism to output a first braking force to enable the brake disc and the friction disc not to be pressed when the preset first parking state is met, wherein the first braking force can be preset to be zero pressing force or reverse driving force, namely the first braking force can be 0, the brake disc and the friction disc are not pressed, or reverse driving force, namely the force for separating the brake disc and the friction disc is controlled to enlarge a gap between the brake disc and the friction disc, at the moment, the vehicle mainly bears the static state holding force of the vehicle through the P gear parking to adapt to rainy seasons and severe cold seasons, the friction plate and the brake disc are prevented from being rusted, bonded or frozen due to the requirement of a flat road surface or a small-slope parking condition, and the friction plate is prevented from being damaged due to long-term repeated operation.
When the gear signal is a P-gear signal and the ignition switch position signal of the vehicle is detected to be in a flameout state within the preset 10S delay, the running state of the vehicle is determined to be a first parking state at the moment, namely, the user is judged to park, and the electronic parking executing mechanism is controlled to output a first braking force to avoid the friction plate and the brake disc from being pressed tightly at the moment and enter a rain and snow parking mode.
After the user selects the rain and snow parking mode, when the acquired gear signal is a non-P gear signal and the vehicle running state is judged to be the second parking state according to the running parameters within the preset 10S delay, the vehicle enters the rain and snow parking mode, and the electronic parking executing mechanism is controlled to apply a first braking force to the wheel, so that the wheel is not locked by the electronic parking executing mechanism, and the friction plate and the brake disc are prevented from being pressed tightly. When the acquired gear signal is a non-P gear signal, the running state of the vehicle is judged according to a vehicle speed signal in the running parameters, when the vehicle speed is judged to be 0 according to the vehicle speed signal within a preset time delay of 10S, the running state of the vehicle is determined to be a second parking state, at the moment, a rain and snow parking mode is entered, and when an ignition switch signal of the vehicle is detected to be in a flameout state, the electronic parking executing mechanism is controlled to apply a first braking force to the wheels.
After a user selects a rain and snow parking mode, if a gear signal is a P-gear signal and a flameout state of an ignition switch position signal of a vehicle is not detected within a preset 10S delay, exiting the rain and snow parking mode, and entering a common electronic parking mode, namely, flameout parking after the user exceeds the 10S delay, wherein an electronic parking control unit controls an electronic parking executing mechanism to output a second braking force so as to enable a brake friction plate to be pressed against a brake disc; after the user selects the rain and snow parking mode, if the acquired gear signal is a non-P gear signal and the vehicle speed represented by the vehicle speed signal acquired within the 10S delay is not 0, exiting the rain and snow parking mode, and entering a common electronic parking mode, namely, after the user shuts off the parking, the electronic parking control unit controls the electronic parking actuating mechanism to output a second braking force so as to enable the brake friction plate to be pressed against the brake disc.
As shown in fig. 6, in order to facilitate user operation, the electronic parking control unit sends a current electronic parking mode signal to the human-computer interaction UI interface through the CAN network to display an electronic parking state of a current vehicle through the human-computer interaction UI interface, for example, after the system exits from the rain and snow parking mode, the electronic parking control unit sends a signal to exit from the rain and snow parking mode to the human-computer interaction UI interface through the CAN network, and the human-computer interaction UI interface displays that a switch option control of the rain and snow parking mode is off to reset a switch option state of the rain and snow parking mode; when the vehicle is parked in the rain and snow parking mode and the vehicle is restarted, the switch option state of the rain and snow parking mode is automatically reset to the off state.
In order to further ensure the parking safety of the user in the rain and snow parking mode, in another specific embodiment of the invention, an angle signal of the vehicle can be acquired after the vehicle enters the rain and snow parking mode, when the acquired angle signal of the vehicle is greater than a set threshold value, the gradient is considered to be too large at the moment and is not suitable for the rain and snow parking mode, at the moment, the vehicle exits the rain and snow parking mode and enters a common electronic parking mode, and meanwhile, an alarm signal is displayed to the user through a human-computer interaction UI interface and the user is prompted to enter the common electronic parking mode.
As shown in fig. 7, in a second aspect of the present invention, there is provided a vehicle electronic parking control apparatus comprising:
the data acquisition module is configured to respond to the request signal and acquire a gear signal and an operation parameter of the vehicle;
and the parking control module is configured to control the electronic parking executing mechanism to output a first braking force when the gear signal is a parking gear signal and the running state of the vehicle is judged to be a first parking state according to the running parameters within a preset delay time, so that the wheels are not locked by the electronic parking executing mechanism.
Optionally, the operating parameter comprises an ignition switch position signal, the parking control module is further configured to:
and when the vehicle is judged to be in a flameout state according to the ignition switch position signal, determining that the vehicle running state is a first parking state.
Optionally, the parking control module is further configured to:
when the gear signal is a non-parking gear signal and the running state of the vehicle is judged to be a second parking state according to the running parameters within the preset time delay, the electronic parking executing mechanism is controlled to apply a first braking force to the wheels when the vehicle is in a flameout state, so that the wheels are not locked by the electronic parking executing mechanism.
Optionally, the operating parameter comprises a vehicle speed signal, the parking control module is further configured to:
and when the vehicle speed is judged to be 0 according to the vehicle speed signal, determining that the vehicle running state is a second parking state.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In a third aspect of the present invention, there is provided a vehicle electronic parking control system comprising:
the data acquisition device is used for acquiring the running parameters of the vehicle;
the human-computer interaction device is used for receiving an input request signal; and
the electronic parking control device for the vehicle is described above.
The data acquisition device comprises an ignition switch position detection sensor and a vehicle speed sensor; the human-computer interaction device can be a vehicle-mounted touch screen. The data acquisition device, the man-machine interaction device and the vehicle electronic parking control device are communicated through a CAN network to realize data interaction.
In a fourth aspect of the invention, an automobile is provided that includes the vehicle electronic parking control apparatus described above.
In summary, in the embodiment, the UI interface is used as a setting interface of the rain and snow parking mode, a user can autonomously select the rain and snow parking mode through the UI interface, after selecting the rain and snow parking mode, the system determines whether the current state of the vehicle meets the requirement for entering the rain and snow parking mode according to the acquired gear signal and the operation parameter of the vehicle, and if the current state meets the requirement for entering the rain and snow parking mode, the electronic parking executing mechanism is controlled to output the first braking force, so that the brake friction plate and the brake disc are not pressed, and the situation that the friction plate and the brake disc cannot be normally separated due to long-time pressing in rainy days or low-temperature days is avoided; otherwise, entering a common electronic parking mode to control the electronic parking actuating mechanism to output a second braking force after the vehicle is shut down and stopped, so that the brake friction plate and the brake disc are pressed tightly.
While the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solution of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications are within the scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention will not be described separately for the various possible combinations.
In addition, any combination of the various embodiments of the present invention is also possible, and the same shall be considered as disclosed in the embodiments of the present invention as long as it does not depart from the spirit of the embodiments of the present invention.
Claims (10)
1. An electronic parking control method for a vehicle, characterized by comprising:
responding to a request signal, and acquiring a gear signal and an operation parameter of the vehicle;
and when the gear signal is a parking gear signal and the running state of the vehicle is judged to be a first parking state according to the running parameters within a preset time delay, controlling the electronic parking executing mechanism to output a first braking force so as to prevent wheels from being locked by the electronic parking executing mechanism.
2. The vehicle electronic parking control method according to claim 1, wherein the operation parameter includes an ignition switch position signal, and the determining the vehicle operation state as a first parking state according to the operation parameter includes:
and when the vehicle is judged to be in a flameout state according to the ignition switch position signal, determining that the vehicle running state is a first parking state.
3. The vehicle electronic parking control method according to claim 1, characterized by further comprising:
and when the gear signal is a non-parking gear signal and the running state of the vehicle is judged to be a second parking state according to the running parameters within the preset time delay, controlling the electronic parking executing mechanism to apply the first braking force to the wheels when the vehicle is in a flameout state, so that the wheels are not locked by the electronic parking executing mechanism.
4. The vehicle electronic parking control method according to claim 3, wherein the operation parameter includes a vehicle speed signal, and the determining that the vehicle operation state is the second parking state according to the operation parameter includes:
and when the vehicle speed is judged to be 0 according to the vehicle speed signal, determining that the vehicle running state is a second parking state.
5. An electronic parking control apparatus for a vehicle, characterized by comprising:
the data acquisition module is configured to respond to a request signal and acquire a gear signal and an operation parameter of the vehicle;
and the parking control module is configured to control the electronic parking executing mechanism to output a first braking force when the gear signal is a parking gear signal and the vehicle running state is judged to be a first parking state according to the running parameters within a preset time delay, so that wheels are not locked by the electronic parking executing mechanism.
6. The vehicle electronic parking control apparatus of claim 5, wherein the operating parameter comprises an ignition switch position signal, the parking control module further configured to:
and when the vehicle is judged to be in a flameout state according to the ignition switch position signal, determining that the vehicle running state is a first parking state.
7. The vehicle electronic parking control apparatus of claim 5, wherein the parking control module is further configured to:
and when the gear signal is a non-parking gear signal and the running state of the vehicle is judged to be a second parking state according to the running parameters within the preset time delay, controlling the electronic parking executing mechanism to apply the first braking force to the wheels when the vehicle is in a flameout state, so that the wheels are not locked by the electronic parking executing mechanism.
8. The vehicle electronic parking control apparatus of claim 7, wherein the operating parameter comprises a vehicle speed signal, the parking control module further configured to:
and when the vehicle speed is judged to be 0 according to the vehicle speed signal, determining that the vehicle running state is a second parking state.
9. An electronic parking control system for a vehicle, comprising:
the data acquisition device is used for acquiring the running parameters of the vehicle;
the human-computer interaction device is used for receiving an input request signal; and
the electronic parking control apparatus for a vehicle according to any one of claims 5 to 8.
10. An automobile characterized by comprising the vehicular electronic parking control apparatus according to any one of claims 5 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011349321.4A CN113561949A (en) | 2020-11-26 | 2020-11-26 | Vehicle electronic parking control method, device and system and automobile |
| PCT/CN2021/122128 WO2022111051A1 (en) | 2020-11-26 | 2021-09-30 | Vehicle electronic parking control method and related device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011349321.4A CN113561949A (en) | 2020-11-26 | 2020-11-26 | Vehicle electronic parking control method, device and system and automobile |
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| CN113561949A true CN113561949A (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011349321.4A Pending CN113561949A (en) | 2020-11-26 | 2020-11-26 | Vehicle electronic parking control method, device and system and automobile |
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| Country | Link |
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| CN (1) | CN113561949A (en) |
| WO (1) | WO2022111051A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114179762A (en) * | 2021-12-28 | 2022-03-15 | 摩登汽车有限公司 | Parking control method after vehicle parking, vehicle control unit and vehicle |
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- 2020-11-26 CN CN202011349321.4A patent/CN113561949A/en active Pending
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- 2021-09-30 WO PCT/CN2021/122128 patent/WO2022111051A1/en active Application Filing
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| JP2005082035A (en) * | 2003-09-09 | 2005-03-31 | Calsonic Kansei Corp | Vehicular electric parking brake device, and initial freezing sensor |
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| CN114179762A (en) * | 2021-12-28 | 2022-03-15 | 摩登汽车有限公司 | Parking control method after vehicle parking, vehicle control unit and vehicle |
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| Publication number | Publication date |
|---|---|
| WO2022111051A1 (en) | 2022-06-02 |
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Application publication date: 20211029 |
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