CN114291014A - Parking release method, parking release device, vehicle and storage medium - Google Patents
Parking release method, parking release device, vehicle and storage medium Download PDFInfo
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Abstract
The invention belongs to the technical field of vehicle control, and discloses a parking release method, a parking release device, a vehicle and a storage medium. The method comprises the following steps: when a vehicle is in a parking braking state, acquiring a gear pedal state of the vehicle; determining the running state of the vehicle according to the gear pedal state; when the driving state is a starting state, acquiring the state of a vehicle door safety belt of the vehicle; and judging whether the parking brake state is released or not according to the state of the vehicle door safety belt. Through the mode, when the vehicle is in a parking braking state, whether the driver needs to start the vehicle is judged according to the gear and the pedal, whether the driver meets the condition of safe driving is judged according to the vehicle door and the safety belt, and the vehicle is ensured to run in the parking releasing state through the judgment of multiple signals, so that dragging damage of the brake and other risks caused by the dragging damage are avoided.
Description
Technical Field
The invention relates to the technical field of vehicle control, in particular to a parking release method and device, a vehicle and a storage medium.
Background
Electric Park Brake Systems (EPBs) are currently in widespread use on passenger vehicles, ranging from the original pull-wire CP-EPBs to the currently widely used caliper MOC-EPBs. The pull-wire CP-EPB changes the traditional operation of the pull wire by the mechanical hand handle into the operation by the motor mainly through the control unit, the motor and the speed reducing mechanism thereof, thereby realizing the convenience of operation and adding a plurality of additional functions. The clamp MOC-EPB directly cancels a transmission pull wire, directly installs the driving motor and the speed reducing and locking mechanism thereof at the rear end of a travelling clamp piston, and directly applies thrust to the piston to further finish parking clamping and realize parking; the MOC-EPB realizes convenience and a plurality of additional functions, greatly reduces the component constitution and the installation and adjustment difficulty of the system and simplifies the difficulty of the system.
With the development of automobiles towards the direction of electromotion and intellectualization, commercial vehicle customers can gradually put forward the requirements of applying EPB products, so that the convenience of product operation and additional convenient and safe functions are improved, and meanwhile, preparation is also provided for future automatic driving. However, due to the limitation of the brake structure and load, most of the current commercial vehicles adopt the configuration of a front drum and rear drum brake and a front disc and rear drum brake, and particularly the configuration that the rear wheel basically has no disc brake. Meanwhile, as the difference of the empty and full load of the commercial vehicle is large, in order to meet the requirement of full load, if a disc brake is adopted, a double-cylinder caliper is required to be adopted for a rear wheel, and at present, in the mature development process of the MOC-EPB of the double-MGU, all commercial vehicles basically have no available products. Therefore, the existing method can mainly replace the original mechanical hand brake to perform wire drawing operation through the pull wire CP-EPB so as to realize the electronic parking function.
However, when a driver forgets that the vehicle is not braked, the accelerator pedal may be fully accelerated, and the vehicle can be started forcibly due to the fact that the parking braking torque cannot completely resist the driving torque, the parking brake is damaged due to dragging abrasion, and a friction plate is smoked and ignited to cause the risk of vehicle burning when the vehicle is serious.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a parking release method, a parking release device, a vehicle and a storage medium, and aims to solve the technical problem that in the prior art, the vehicle is damaged due to forced starting when the vehicle is in a parking braking state.
To achieve the above object, the present invention provides a parking release method including the steps of:
when a vehicle is in a parking braking state, acquiring a gear pedal state of the vehicle;
determining the running state of the vehicle according to the gear pedal state;
when the driving state is a starting state, acquiring the state of a vehicle door safety belt of the vehicle;
and judging whether the parking brake state is released or not according to the state of the vehicle door safety belt.
Optionally, the obtaining the gear pedal state of the vehicle when the vehicle is in the parking brake state includes:
determining a gear state according to the gear engaging signal of the vehicle;
determining a pedal state according to the pedal opening of the vehicle;
and determining the gear pedal state according to the gear state and the pedal opening.
Optionally, the determining the driving state of the vehicle according to the gear pedal state includes:
when the vehicle is determined to be in a driving gear state and an accelerator pedal treading state according to the gear pedal state, determining that the driving state of the vehicle is a starting state;
and when the vehicle is determined to be in a stop gear state and/or an accelerator pedal is not stepped on according to the gear pedal state, determining that the driving state of the vehicle is in a stop state.
Optionally, the acquiring the door belt state of the vehicle includes:
determining the state of a safety belt according to safety belt signals of a driving position;
determining a door state according to a door signal of the vehicle;
determining a door belt state based on the belt state and the door state.
Optionally, the determining whether to release the parking brake state according to the state of the door belt includes:
when the vehicle is determined to be in a vehicle door closing state and a safety belt closing state according to the vehicle door safety belt state, the parking braking state is released;
and when the vehicle is determined to be in a state that the door of the vehicle is not closed and/or a state that the safety belt is not closed according to the state of the door safety belt, maintaining the parking braking state.
Optionally, after determining whether to release the parking brake state according to the state of the door belt, the method further includes:
determining a target torque according to the pedal opening degree after releasing the parking brake state of the vehicle;
and controlling the vehicle to run according to the target torque.
Optionally, after determining whether to release the parking brake state according to the state of the door belt, the method further includes:
releasing the parking brake state when the vehicle maintains the parking brake state and a manual parking release signal is received;
determining a target torque according to the pedal opening;
and controlling the vehicle to run according to the target torque.
Further, to achieve the above object, the present invention also proposes a parking release device including:
the first acquisition module is used for acquiring the gear pedal state of the vehicle when the vehicle is in a parking braking state;
the state determination module is used for determining the running state of the vehicle according to the state of the gear pedal;
the second acquisition module is used for acquiring the state of a vehicle door safety belt of the vehicle when the running state is a starting state;
and the releasing judgment module is used for judging whether the parking brake state is released or not according to the state of the vehicle door safety belt.
Further, to achieve the above object, the present invention also proposes a vehicle including: a memory, a processor and a park release program stored on the memory and executable on the processor, the park release program configured to implement the steps of the park release method as described above.
Furthermore, to achieve the above object, the present invention also proposes a storage medium having a parking release program stored thereon, which when executed by a processor implements the steps of the parking release method as described above.
According to the invention, when a vehicle is in a parking braking state, the gear pedal state of the vehicle is obtained; determining the running state of the vehicle according to the gear pedal state; when the driving state is a starting state, acquiring the state of a vehicle door safety belt of the vehicle; and judging whether the parking brake state is released or not according to the state of the vehicle door safety belt. Through the mode, when the vehicle is in a parking braking state, whether the driver needs to start the vehicle is judged according to the gear and the pedal, whether the driver meets the condition of safe driving is judged according to the vehicle door and the safety belt, and the vehicle is ensured to run in the parking releasing state through the judgment of multiple signals, so that dragging damage of the brake and other risks caused by the dragging damage are avoided.
Drawings
FIG. 1 is a schematic diagram of a vehicle in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a first embodiment of a park release method of the present invention;
FIG. 3 is a schematic flow chart of a park release method according to a second embodiment of the present invention;
FIG. 4 is a system configuration diagram of an embodiment of a parking release method of the present invention;
FIG. 5 is a schematic overall flowchart of an embodiment of a park release method according to the present invention;
fig. 6 is a block diagram showing the structure of the parking release apparatus according to the first embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a vehicle configuration diagram of a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the vehicle may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory, or may be a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in FIG. 1 is not intended to be limiting of the vehicle and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a storage medium, may include therein an operating system, a network communication module, a user interface module, and a parking release program.
In the vehicle shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the vehicle of the present invention may be provided in the vehicle, and the vehicle calls the parking release program stored in the memory 1005 through the processor 1001 and executes the parking release method provided by the embodiment of the present invention.
An embodiment of the present invention provides a parking release method, and referring to fig. 2, fig. 2 is a flowchart illustrating a first embodiment of the parking release method according to the present invention.
In the present embodiment, the parking release method includes the steps of:
step S10: and when the vehicle is in a parking braking state, acquiring a gear pedal state of the vehicle.
It should be understood that, considering the characteristics of the new energy vehicle, if the vehicle is in the parking state, the gear is in the forward or reverse gear, and the vehicle does not move at this time, and the stable state can be still maintained. However, at this time, the driver may leave the driving position without noticing the relevant situation, and if the vehicle obtains an accelerator pedal signal due to an uncontrollable external factor at this time, the vehicle inevitably starts to be released from the parking and move, which causes a great safety risk. The existing solution is that after a door closing signal and a safety belt fastening signal are added on the basis, the automatic parking starting releasing function is responded, and when the power output torque reaches a certain value, the parking is automatically released, so that the vehicle starting is guaranteed. And when no vehicle door and safety belt signal exists, the parking is not responded to and removed, and the driver is reminded. The parking system operates solely based on signals of a Vehicle door, a safety belt, an accelerator pedal and the like, and a Vehicle Control Unit (VCU) operates solely according to an acceleration request of the accelerator pedal. Because the whole load of passenger car is little, and empty full load difference is also less, parking is easier locks the rear wheel, and when the front wheel was driven, both ground force utilization can reach the equilibrium the most, and driving force is difficult to surpass rear wheel braking force, consequently is comparatively effective to passenger car to this kind of solution.
However, the commercial vehicle has a large difference between empty and full load, so that the driving torque of the power system is large to meet the requirement of full load, and meanwhile, as a new energy vehicle, the low-speed torque of the motor is large, so that the driving torque cannot be completely offset by the parking braking torque of the parking braking system, and meanwhile, both the parking braking force and the driving force act on the rear wheel, so that under partial conditions of the two vehicles, the parking braking force and the driving force do not depend on the utilization of the ground force respectively but depend on the utilization of the ground force after the two torques are balanced; when the driving torque is far larger than the braking torque, although a driver does not fasten a safety belt and close a vehicle door, the EPB system does not release parking and give an alarm according to the requirement, the driver still can accelerate the accelerator pedal fully on the premise of not realizing the situation, and the parking braking torque cannot completely resist the driving torque at the moment, so that the vehicle can be started forcibly, the parking brake is damaged by dragging, and the friction plate is smoked and ignited in serious cases, so that the risk of burning the vehicle is caused.
In the embodiment, the original control mode that the VCU and the EPB work independently is broken, the joint control is carried out, and the requirements, the safety influence and the protection on components of the two systems are comprehensively evaluated; the response request of the VCU to the accelerator pedal is further limited, the parking signal is judged again on the premise that the safety belt signal and the vehicle door signal are not provided, and when the parking signal is provided, the acceleration request of the accelerator pedal is not responded, so that the brake is prevented from being damaged and the safety risk of causing linkage is avoided.
It should be noted that the execution subject of the embodiment is a vehicle control unit on a vehicle, and the vehicle control unit may receive information input by a sensor or other devices, and convert the input information into a signal that can be received by a microprocessor; storing, calculating, analyzing and processing information, analyzing a program used for an output value, storing characteristic parameters of the vehicle type, data in operation (random access along with storage), and storing fault information; and (6) performing operation analysis. And calculating the execution command data according to the information parameters, comparing the input information with a standard value, and checking faults. And outputting the execution command. And converting the weak signal into an execution command, outputting fault information and self-correcting. The control of the vehicle is realized through the mode.
It can be understood that the vehicle is in the parking brake state, that is, the vehicle is stationary, and the electronic parking brake system performs parking brake, and if the driver does not release the parking brake state but wants to drive the vehicle, the driver engages the gear and presses the pedal, so as to generate a gear signal and a pedal opening signal, and the gear pedal state can be obtained according to the gear signal and the pedal opening signal. It is understood that the gear pedal state includes a vehicle gear, and a pedal opening.
Further, when the vehicle is in the parking brake state, acquiring a gear pedal state of the vehicle, including: determining a gear state according to the gear engaging signal of the vehicle; determining a pedal state according to the pedal opening of the vehicle; and determining the gear pedal state according to the gear state and the pedal opening.
It should be understood that the gears of the vehicle include a P gear, an R gear, an N gear, a D gear, an S gear and an L gear, and the corresponding gear signals are a P gear signal, an R gear signal, an N gear signal, a D gear signal, an S gear signal and an L gear signal.
The pedal of the vehicle includes a brake pedal and an accelerator pedal (i.e., an accelerator), and the pedal state of the vehicle can be determined according to the opening degree of the corresponding pedal. And combining the gear state and the pedal state to obtain the gear pedal state.
Step S20: and determining the running state of the vehicle according to the gear pedal state.
In a specific implementation, since the electronic parking brake system of the vehicle is in a braking state, the speed of the vehicle is 0, but due to the operation of a driver, a gear may be changed from a non-engaged gear to a gear such as an R gear/a D gear, and a pedal is also pressed by the driver, so that the driving state of the vehicle is changed from a stopping state to a starting state.
Further, in order to more accurately determine the current state of the vehicle, the determining the driving state of the vehicle according to the gear pedal state includes: when the vehicle is determined to be in a driving gear state and an accelerator pedal treading state according to the gear pedal state, determining that the driving state of the vehicle is a starting state; and when the vehicle is determined to be in a stop gear state and/or an accelerator pedal is not stepped on according to the gear pedal state, determining that the driving state of the vehicle is in a stop state.
The driving range refers to a range for forward or reverse, for example: r gear, D gear and the like. The stop range of the vehicle refers to ranges such as a park range P and a neutral range N that are not used for forward or reverse.
When the driving gear state of the vehicle is D gear or R gear and the accelerator pedal is pressed down, the driving state of the vehicle is a starting state, and if the driving gear state of the vehicle is not D gear or R gear and/or the accelerator pedal is not pressed down, the driving state of the vehicle is judged to be a stopping state. The starting state means that the vehicle needs to be stopped to move, and the stopping state means that the vehicle does not generate power and the speed is 0.
Step S30: and when the driving state is a starting state, acquiring the state of a door safety belt of the vehicle.
In a specific implementation, when the driving state of the vehicle is a starting state, which indicates that the driver wants to change the vehicle from a stationary state to a moving state, in order to ensure the safety of the driver, the states of the vehicle and a safety belt of a driving seat of the vehicle need to be considered.
It should be noted that the door belt state includes a door open or closed state, and a belt closed or non-closed state. Seat belt closure means that the seat belt is fastened.
Further, the acquiring the door belt state of the vehicle includes: determining the state of a safety belt according to safety belt signals of a driving position; determining a door state according to a door signal of the vehicle; determining a door belt state based on the belt state and the door state.
It can be understood that, when the vehicle door is opened or closed, corresponding signals are generated, so the vehicle door signals include an opening signal and a closing signal, when the vehicle control unit determines that the opening signal of the vehicle door is received, the vehicle door is in an opening state, and when the closing signal is received, the vehicle door is in a closing state. Typically, multiple doors are present on a vehicle, and therefore each door is associated with a separate door signal.
It can be understood that the seat belt signal is a seat belt signal of the driving position, the seat belt signal includes a close signal and an open signal, when the vehicle control unit receives the close signal, it indicates that the seat belt is in a closed state, that is, the seat belt is fastened, and when the vehicle control unit receives the open state, it indicates that the seat belt is in an open state, that is, the seat belt is not fastened. And finally, obtaining the state of the car door safety belt according to the state of the safety belt and the state of the car door.
Step S40: and judging whether the parking brake state is released or not according to the state of the vehicle door safety belt.
It should be noted that, in order to more accurately determine whether the driver is ready to start the vehicle, the determining whether to release the parking brake state according to the door belt state includes: when the vehicle is determined to be in a vehicle door closing state and a safety belt closing state according to the vehicle door safety belt state, the parking braking state is released; and when the vehicle is determined to be in a state that the door of the vehicle is not closed and/or a state that the safety belt is not closed according to the state of the door safety belt, maintaining the parking braking state.
In a specific implementation, when the doors of the vehicle are all in a closed state and the safety belt of the driving position is in a closed state, which indicates that the driver is completely ready for driving, the parking brake state of the vehicle is released, so that the vehicle can normally run. When any door of all doors of the vehicle is not closed, the door of the vehicle is in an unclosed state, when the door is in the unclosed state and/or the safety belt is in an unclosed state, the parking brake state of the vehicle is not released, meanwhile, the instrument is used for prompting safety information to a driver (the prompting information is 'please close the door and fasten the safety belt, or manually release the parking'), and buzzing is sent.
It should be noted that, the electronic parking brake system is controlled by the EPB controller assembly, the EPB controller assembly is fixed on the frame through the bracket, one end is connected with the wire harness, and the other end is connected with the central drum type (or wheel edge drum type) parking brake through the parking cable. The EPB controller judges the function realization requirements of the current system based on the CAN network signal condition and the switch signal, and then controls the motor to work, and the motor pulls the parking cable to move through the internal speed reducing mechanism, and then drives the parking brake to realize corresponding parking and release functions.
In the embodiment, when a vehicle is in a parking braking state, the gear pedal state of the vehicle is acquired; determining the running state of the vehicle according to the gear pedal state; when the driving state is a starting state, acquiring the state of a vehicle door safety belt of the vehicle; and judging whether the parking brake state is released or not according to the state of the vehicle door safety belt. Through the mode, when the vehicle is in a parking braking state, whether the driver needs to start the vehicle is judged according to the gear and the pedal, whether the driver meets the condition of safe driving is judged according to the vehicle door and the safety belt, and the vehicle is ensured to run in the parking releasing state through the judgment of multiple signals, so that dragging damage of the brake and other risks caused by the dragging damage are avoided.
Referring to fig. 3, fig. 3 is a flowchart illustrating a parking release method according to a second embodiment of the present invention.
Based on the first embodiment described above, the parking release method of the present embodiment further includes, after the step S40:
step S50: determining a target torque according to the pedal opening degree after releasing the parking brake state of the vehicle.
After the vehicle is released from the parking brake state, the vehicle can normally run, the vehicle control unit determines a corresponding target torque based on the pedal opening degree of the accelerator pedal, and a mapping relationship exists between the pedal opening degree and the target torque.
Step S60: and controlling the vehicle to run according to the target torque.
In a specific implementation, the vehicle controller generates a torque request based on a target torque, and sends the torque request to a Micro Control Unit (MCU) of the vehicle, and the MCU controls the motor to apply a driving torque to the vehicle through the transmission shaft, the rear axle, and the wheels.
As shown in fig. 4, the vehicle of the present embodiment includes a power take-off system, an EPB electronic parking system, a CAN communication network, and related electronic switches. The power output system consists of an accelerator pedal, a VCU, an MCU, a driving motor, a transmission shaft, a drive axle, wheels and the like; the EPB electronic parking brake system comprises an EPB switch, an EPB controller, a parking cable, a parking brake and the like.
Further, after determining whether to release the parking brake state according to the state of the door belt, the method further includes: releasing the parking brake state when the vehicle maintains the parking brake state and a manual parking release signal is received; determining a target torque according to the pedal opening; and controlling the vehicle to run according to the target torque.
It should be noted that, when the vehicle does not automatically release the parking brake state, the driver performs a manual parking release operation through the EPB switch, the EPB system performs parking brake release, and after the VCU receives the parking release signal, the driver considers that the driver still releases the parking brake after receiving the relevant reminder, and the VCU should know the relevant risk and be ready to respond, so that the VCU can respond to the request of the accelerator pedal to accelerate the vehicle at this time.
As shown in fig. 5, which is an overall flowchart of this embodiment, when the VCU receives a torque request from an accelerator pedal, it determines whether the parking brake is released, and when the parking brake is not released, it determines whether the parking brake can be released according to a door signal and a seat belt signal, and when the parking brake cannot be released, the VCU reminds a driver through an instrument, and when the parking brake can be released, the VCU responds to the torque request.
The embodiment determines a target torque according to the pedal opening after the parking brake state of the vehicle is released; and controlling the vehicle to run according to the target torque. Releasing the parking brake state when the vehicle maintains the parking brake state and a manual parking release signal is received; determining a target torque according to the pedal opening; and controlling the vehicle to run according to the target torque. Through the mode, when the EPB system is in the parking release state, the system can meet the requirement that when a driver does not fasten a safety belt and close a vehicle door, or the parts such as the safety belt and the vehicle door are damaged, the EPB can respond to a starting automatic release request of an accelerator pedal, and the vehicle can run on the conditional premise.
Furthermore, an embodiment of the present invention also proposes a storage medium having a parking release program stored thereon, which when executed by a processor implements the steps of the parking release method as described above.
Since the storage medium adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
Referring to fig. 6, fig. 6 is a block diagram showing the structure of the parking release apparatus according to the first embodiment of the present invention.
As shown in fig. 6, a parking release apparatus according to an embodiment of the present invention includes:
the first obtaining module 10 is configured to obtain a gear pedal state of a vehicle when the vehicle is in a parking brake state.
And the state determination module 20 is used for determining the running state of the vehicle according to the gear pedal state.
And the second obtaining module 30 is configured to obtain a door belt state of the vehicle when the driving state is a starting state.
And the releasing judgment module 40 is used for judging whether the parking brake state is released or not according to the state of the vehicle door safety belt.
In an embodiment, the first obtaining module 10 is further configured to determine a gear state according to a gear engaging signal of the vehicle; determining a pedal state according to the pedal opening of the vehicle; and determining the gear pedal state according to the gear state and the pedal opening.
In an embodiment, the state determining module 20 is further configured to determine that the driving state of the vehicle is a starting state when the vehicle is determined to be in a driving gear state and an accelerator pedal is pressed down according to the gear pedal state; and when the vehicle is determined to be in a stop gear state and/or an accelerator pedal is not stepped on according to the gear pedal state, determining that the driving state of the vehicle is in a stop state.
In an embodiment, the second obtaining module 30 is further configured to determine a seat belt state according to a seat belt signal of the driving seat; determining a door state according to a door signal of the vehicle; determining a door belt state based on the belt state and the door state.
In an embodiment, the release determining module 40 is further configured to release the parking brake state when it is determined that the vehicle is in a door closed state and a seat belt closed state according to the door seat belt state; and when the vehicle is determined to be in a state that the door of the vehicle is not closed and/or a state that the safety belt is not closed according to the state of the door safety belt, maintaining the parking braking state.
In one embodiment, the release determining module 40 is further configured to determine a target torque according to the pedal opening degree after the parking brake state of the vehicle is released; and controlling the vehicle to run according to the target torque.
In an embodiment, the release determining module 40 is further configured to release the parking brake state when the vehicle maintains the parking brake state and receives a manual parking release signal; determining a target torque according to the pedal opening; and controlling the vehicle to run according to the target torque.
It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and in a specific application, a person skilled in the art may set the technical solution as needed, and the present invention is not limited thereto.
In the embodiment, when a vehicle is in a parking braking state, the gear pedal state of the vehicle is acquired; determining the running state of the vehicle according to the gear pedal state; when the driving state is a starting state, acquiring the state of a vehicle door safety belt of the vehicle; and judging whether the parking brake state is released or not according to the state of the vehicle door safety belt. Through the mode, when the vehicle is in a parking braking state, whether the driver needs to start the vehicle is judged according to the gear and the pedal, whether the driver meets the condition of safe driving is judged according to the vehicle door and the safety belt, and the vehicle is ensured to run in the parking releasing state through the judgment of multiple signals, so that dragging damage of the brake and other risks caused by the dragging damage are avoided.
It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.
In addition, the technical details that are not elaborated in the present embodiment may refer to the parking release method provided in any embodiment of the present invention, and are not described herein again.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g. Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g. a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A parking release method, characterized by comprising:
when a vehicle is in a parking braking state, acquiring a gear pedal state of the vehicle;
determining the running state of the vehicle according to the gear pedal state;
when the driving state is a starting state, acquiring the state of a vehicle door safety belt of the vehicle;
and judging whether the parking brake state is released or not according to the state of the vehicle door safety belt.
2. The method of claim 1, wherein obtaining the gear pedal state of the vehicle while the vehicle is in the parking brake state comprises:
determining a gear state according to the gear engaging signal of the vehicle;
determining a pedal state according to the pedal opening of the vehicle;
and determining the gear pedal state according to the gear state and the pedal opening.
3. The method of claim 1, wherein said determining a driving state of said vehicle based on said gear pedal state comprises:
when the vehicle is determined to be in a driving gear state and an accelerator pedal treading state according to the gear pedal state, determining that the driving state of the vehicle is a starting state;
and when the vehicle is determined to be in a stop gear state and/or an accelerator pedal is not stepped on according to the gear pedal state, determining that the driving state of the vehicle is in a stop state.
4. The method of claim 1, wherein said obtaining a door belt status of the vehicle comprises:
determining the state of a safety belt according to safety belt signals of a driving position;
determining a door state according to a door signal of the vehicle;
determining a door belt state based on the belt state and the door state.
5. The method of claim 1, wherein said determining whether to release the parking brake state based on the door belt state comprises:
when the vehicle is determined to be in a vehicle door closing state and a safety belt closing state according to the vehicle door safety belt state, the parking braking state is released;
and when the vehicle is determined to be in a state that the door of the vehicle is not closed and/or a state that the safety belt is not closed according to the state of the door safety belt, maintaining the parking braking state.
6. The method of any of claims 1 to 5, wherein after determining whether to release the parking brake state based on the door belt state, further comprising:
determining a target torque according to the pedal opening degree after releasing the parking brake state of the vehicle;
and controlling the vehicle to run according to the target torque.
7. The method of any of claims 1 to 5, wherein after determining whether to release the parking brake state based on the door belt state, further comprising:
releasing the parking brake state when the vehicle maintains the parking brake state and a manual parking release signal is received;
determining a target torque according to the pedal opening;
and controlling the vehicle to run according to the target torque.
8. A parking release device, characterized by comprising:
the first acquisition module is used for acquiring the gear pedal state of the vehicle when the vehicle is in a parking braking state;
the state determination module is used for determining the running state of the vehicle according to the state of the gear pedal;
the second acquisition module is used for acquiring the state of a vehicle door safety belt of the vehicle when the running state is a starting state;
and the releasing judgment module is used for judging whether the parking brake state is released or not according to the state of the vehicle door safety belt.
9. A vehicle, characterized in that the vehicle comprises: a memory, a processor, and a park release program stored on the memory and executable on the processor, the park release program configured to implement the park release method as recited in any one of claims 1 to 7.
10. A storage medium having a parking release program stored thereon, the parking release program, when executed by a processor, implementing a parking release method according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210024178.4A CN114291014A (en) | 2022-01-05 | 2022-01-05 | Parking release method, parking release device, vehicle and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210024178.4A CN114291014A (en) | 2022-01-05 | 2022-01-05 | Parking release method, parking release device, vehicle and storage medium |
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| US20030036459A1 (en) * | 2001-08-16 | 2003-02-20 | Jeon Ig-Kyun | Brake system of vehicle |
| CN106627547A (en) * | 2016-11-17 | 2017-05-10 | 广州汽车集团股份有限公司 | Electronic-parking-brake system with automatic parking function, starting method and vehicle |
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