Parking control method and equipment, electronic device and vehicle

Abstract

The embodiment of the invention discloses a parking control method and device, an electronic device and a vehicle, the method is applied to the parking control device, the parking control device comprises a vehicle-mounted control unit VCU, and the method comprises the steps that under the condition that it is detected that assistance of a brake pedal of the vehicle fails, the depth information of the brake pedal of the vehicle is obtained, the brake pedal boosting failure means that the brake deceleration is smaller than a preset threshold value; determining a first deceleration corresponding to the depth information of the brake pedal through a VCU (vehicle control unit) of the vehicle according to a preset mapping relation between depth and deceleration; and performing deceleration braking on the vehicle according to the determined first deceleration corresponding to the depth information of the brake pedal. In this way, the scheme that the vehicle is braked according to the depth information of the brake pedal under the condition that the assistance of the brake pedal fails can be achieved, and the safety of the vehicle can be further improved.

Description

Technical Field

[0001] The present application relates to the field of automobile control technology, and in particular to a parking control method, equipment, electronic device and vehicle. Background Art

[0002] With the development of the automobile industry and the improvement of people's living standards, the popularity of automobiles is increasing, and the requirements for driving safety are also getting higher and higher. Life is paramount. As the braking system with the highest safety level of the entire vehicle, higher requirements are also put forward for the braking system to ensure the driving safety of the car. In the traditional braking system structure, after the brake assist fails completely, the driver can only rely on the driver's foot power to brake, which can only meet the minimum deceleration requirements of the regulations. In sudden situations such as high speeds, there are still great safety hazards. Summary of the invention

[0003] The embodiments of the present application provide a parking control method, equipment, electronic device and vehicle, which can realize a solution of braking the vehicle according to the brake pedal depth information when the brake pedal assist fails, thereby helping to further improve the safety of the vehicle.

[0004] In a first aspect, an embodiment of the present application provides a parking control method, the method being applied to a parking control device, the parking control device including a vehicle-mounted control unit VCU, the method comprising:

[0005] When a brake pedal boost failure of a vehicle is detected, obtaining brake pedal depth information of the vehicle, wherein the brake pedal boost failure refers to a braking deceleration being less than a preset threshold;

[0006] Determining, by the VCU of the vehicle, a first deceleration corresponding to the brake pedal depth information according to a preset mapping relationship between depth and deceleration;

[0007] The vehicle is decelerated and braked according to the determined first deceleration corresponding to the brake pedal depth information.

[0008] In a second aspect, an embodiment of the present application provides a parking control device, the parking control device comprising a VCU, the device comprising:

[0009] an acquisition unit, configured to acquire brake pedal depth information of the vehicle when a brake pedal boost failure of the vehicle is detected, wherein the brake pedal boost failure refers to a braking deceleration being less than a preset threshold;

[0010] a processing unit, configured to determine, through a VCU of the vehicle, a first deceleration corresponding to the brake pedal depth information according to a preset mapping relationship between the depth and the deceleration;

[0011] A braking unit is used to perform deceleration braking on the vehicle according to the determined first deceleration corresponding to the brake pedal depth information.

[0012] In a third aspect, an embodiment of the present application provides an electronic device, the electronic device comprising a processor, a memory, a bus and a communication interface, the processor, the communication interface and the memory being connected via the bus;

[0013] The memory is used to store programs;

[0014] The processor is used to call the program stored in the memory through the bus to execute the method described in the first aspect.

[0015] In a fourth aspect, an embodiment of the present application provides a vehicle, comprising a vehicle body and a parking control device, wherein the parking control device is used to execute the method described in the first aspect to manage the vehicle.

[0016] The embodiment of the present application obtains the brake pedal depth information of the vehicle when it is detected that the brake pedal assist fails, and determines, through the vehicle's VCU, a first deceleration corresponding to the brake pedal depth information according to a preset mapping relationship between depth and deceleration; the vehicle is decelerated and braked according to the determined first deceleration corresponding to the brake pedal depth information, thereby realizing a multiple braking scheme for braking the vehicle according to the brake pedal depth information when the brake pedal assist fails, which helps to further improve the safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the structure of a parking control system provided in an embodiment of the present application;

[0019] Figure 2 is a flow chart of a parking control method provided in an embodiment of the present application;

[0020] Figure 3 is a flow chart of another parking control method provided by an embodiment of the present application;

[0021] Figure 4 It is a structural schematic diagram of a deceleration brake provided in an embodiment of the present application;

[0022] Figure 5is a flow chart of another parking control method provided in an embodiment of the present application;

[0023] Figure 6 is a structural schematic diagram of a parking control device provided in an embodiment of the present application;

[0024] Figure 7 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0027] It should also be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0028] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0029] As used in this specification and the appended claims, the term "if" may be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if [described condition or event] is detected" may be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]," depending on the context.

[0030] In a specific implementation, the terminal described in the embodiments of the present application includes, but is not limited to, other portable devices such as mobile phones, laptop computers, or tablet computers with touch-sensitive surfaces (e.g., touch screen displays and / or touch pads). It should also be understood that in some embodiments, the device is not a portable communication device, but a desktop computer with a touch-sensitive surface (e.g., touch screen displays and / or touch pads).

[0031] A parking control method, device, electronic device and vehicle provided in an embodiment of the present application, the parking control device may include a vehicle-mounted control unit (VCU). The parking control method provided in an embodiment of the present application can obtain the brake pedal depth information of the vehicle when it is detected that the brake pedal assist failure of the vehicle, and the brake pedal assist failure means that the braking deceleration is less than a preset threshold value; through the vehicle's VCU, according to a preset mapping relationship between depth and deceleration, a first deceleration corresponding to the brake pedal depth information is determined; the vehicle is decelerated and braked according to the determined first deceleration corresponding to the brake pedal depth information, thereby avoiding the situation where the vehicle's parking function completely fails due to a failure of a regional controller when the vehicle's brake pedal assist failure is detected, which helps to improve the effectiveness of vehicle parking and the safety of the vehicle.

[0032] In one embodiment, when the parking brake information of the vehicle is detected, a second deceleration corresponding to the parking brake information is obtained, and the parking brake information includes one or more of the electronic parking brake system EPB switch information, hydraulic brake information, and pedal basic brake information; the vehicle is decelerated and braked according to the first deceleration and the second deceleration.

[0033] The parking control method provided in the embodiment of the present application can be applied to a parking control device, which can be arranged in a parking control system, and the parking control device can be arranged in the central computing unit of the parking control system, and the parking control system can include an electronic hydraulic brake module, a central computing unit, a right domain controller, a wheel speed sensor, a brake depth sensor, an EPB switch, an execution motor, etc., and can be divided into a signal acquisition module, a control module, and an execution module. The signal acquisition module is mainly composed of an EPB switch, a wheel speed sensor, and a brake depth sensor, which respectively collect EPB switch information (such as a pull-up signal), wheel speed, and brake pedal depth information, and transmit the information to the central computing unit and the electronic hydraulic brake module, and the central computing unit then forwards it to the right domain controller.

[0034] Principle Figure 1 As shown, Figure 1The structural diagram of a parking control system provided by an embodiment of the present application, the central computing unit 101 is connected to the right domain controller 102 via Ethernet 103, the electronic hydraulic brake module 104 adopts a dual-channel controller area network bus (Controller Area Network, CAN) communication, one channel is connected to the central computing unit 101 and the right domain controller 102 through a redundant braking subnet 105, and the other channel is directly connected to the central computing unit 101 through a variable rate CAN (CAN Flexible Data rate, CANFD) 106, and the relevant safety function modules (such as AEB, feedback, etc.) of the electronic hydraulic brake module 104 are integrated in the central computing unit 101 and the right domain controller 102 at the same time, ensuring that when one or two controllers (central computing unit and / or right domain controller) fail, the vehicle can still be controlled to decelerate and meet the redundant braking requirements. In some embodiments, the central computing unit can also obtain wheel speed signals through wheel speed sensors 107 and brake pedal depth signals through brake depth sensors 108.

[0035] The embodiment of the present application collects wheel speed sensor signals, EPB switch signals (i.e., EPB switch information), and brake depth sensor signals (i.e., brake pedal depth information), and transmits them to the central computing unit 101 and the right domain controller 102. The central computing unit 101 can further control the corresponding first caliper motor 1011 to perform a parking action, and the right domain controller 102 can control the corresponding second caliper motor 1021 to perform a parking action.

[0036] See also Figure 2 , Figure 2 It is a flow chart of a parking control method provided in an embodiment of the present application. As shown in the figure, the parking control method in this embodiment can be applied to a parking control device, which includes a vehicle-mounted control unit VCU. The method may include at least the following steps.

[0037] S201: When a brake pedal boost failure of a vehicle is detected, obtaining brake pedal depth information of the vehicle, wherein the brake pedal boost failure refers to a braking deceleration being less than a preset threshold.

[0038] In an embodiment of the present application, the parking control device can obtain the brake pedal depth information of the vehicle when it is detected that the brake pedal assist failure of the vehicle, and the brake pedal assist failure means that the braking deceleration is less than a preset threshold.

[0039] In one example, when the driver steps on the brake pedal, if the brake pedal assist fails completely (completely unable to communicate, etc.), the central computing unit can provide a valid wheel speed signal and a brake pedal depth signal.

[0040] S202: Determine, through the VCU of the vehicle, a first deceleration corresponding to the brake pedal depth information according to a preset mapping relationship between depth and deceleration.

[0041] In one example, the maximum -6m / s corresponding to the brake pedal depth information can be determined by the vehicle's VCU according to the preset mapping relationship between depth and deceleration. 2 The first deceleration.

[0042] S203: decelerating and braking the vehicle according to the determined first deceleration corresponding to the brake pedal depth information.

[0043] In one embodiment, when the parking control device detects that the brake pedal assist of the vehicle has failed, before obtaining the brake pedal depth information of the vehicle, it can also obtain the wheel speed information of the vehicle, and detect whether the wheel speed of the vehicle is greater than the wheel speed threshold based on the wheel speed information; when it is detected that the wheel speed of the vehicle is greater than the wheel speed threshold, the step of obtaining the brake pedal depth information of the vehicle when the brake pedal assist of the vehicle has failed is executed.

[0044] In one embodiment, after acquiring the wheel speed and brake pedal depth information of the vehicle, the parking control device can determine the first deceleration corresponding to the brake pedal depth information through the vehicle's VCU according to a preset mapping relationship between depth and deceleration; and decelerate and brake the vehicle according to the first deceleration and the wheel speed.

[0045] The embodiment of the present application utilizes the wheel speed and the first deceleration corresponding to the brake pedal depth information to more accurately determine the deceleration for decelerating and braking the vehicle, so as to more effectively brake the vehicle.

[0046] Further, when the parking control device decelerates and brakes the vehicle according to the first deceleration and the wheel speed, the target deceleration can be determined according to the first deceleration and the wheel speed, and the vehicle can be decelerated and braked according to the target deceleration. When the parking control device determines the target deceleration according to the first deceleration and the wheel speed, the target deceleration corresponding to the first deceleration and the wheel speed can be determined according to a preset rule. In some embodiments, the preset rule can be a preset correspondence between the deceleration, the wheel speed, and the target deceleration. In other embodiments, the preset rule can be a preset calculation formula, etc.

[0047] In the embodiment of the present application, the parking control device can obtain the brake pedal depth information of the vehicle when the brake pedal assist of the vehicle is detected to be ineffective, determine the first deceleration corresponding to the brake pedal depth information through the vehicle's VCU according to the preset mapping relationship between depth and deceleration, and decelerate and brake the vehicle according to the determined first deceleration corresponding to the brake pedal depth information. This method of using the VCU to determine the first deceleration according to the brake pedal depth information and decelerate and brake the vehicle according to the first deceleration helps to better brake the vehicle and improve the safety of the vehicle.

[0048] See also Figure 3 , Figure 3 It is a flow chart of another parking control method provided in an embodiment of the present application. As shown in the figure, the parking control method in this embodiment can be applied to a parking control device, which includes a VCU. The method may include at least the following steps.

[0049] S301: When a brake pedal boost failure of a vehicle is detected, the brake pedal depth information of the vehicle is obtained, wherein the brake pedal boost failure refers to a braking deceleration being less than a preset threshold.

[0050] S302: Determine, through the VCU of the vehicle, a first deceleration corresponding to the brake pedal depth information according to a preset mapping relationship between depth and deceleration.

[0051] S303: When parking brake information of the vehicle is detected, a second deceleration corresponding to the parking brake information is acquired, where the parking brake information includes one or more of electronic parking brake system EPB switch information, hydraulic brake information, and pedal basic brake information.

[0052] In one embodiment, when the parking control device detects the parking brake information of the vehicle and obtains the second deceleration corresponding to the parking brake information, it may obtain the deceleration corresponding to the EPB switch information when the EPB switch information of the vehicle is detected; and / or, obtain the deceleration corresponding to the hydraulic brake information when the hydraulic brake information of the vehicle is detected; and / or, obtain the deceleration corresponding to the pedal basic brake information when the pedal basic brake information of the vehicle is detected; determine the second deceleration corresponding to the parking brake information based on one or more of the deceleration corresponding to the EPB switch information, the deceleration corresponding to the hydraulic brake information, and the deceleration corresponding to the pedal basic brake information.

[0053] In one example, when the parking control device obtains the EPB switch information, it can brake through the caliper motor corresponding to the EPB switch, and the deceleration corresponding to the EPB switch information can be as high as -3.4m / s. 2 .

[0054] In one embodiment, when the parking control device determines the second deceleration corresponding to the parking brake information based on one or more of the deceleration corresponding to the EPB switch information, the deceleration corresponding to the hydraulic brake information, and the deceleration corresponding to the pedal basic brake information, the second deceleration may be determined based on the deceleration corresponding to the EPB switch information, the deceleration corresponding to the hydraulic brake information, and the deceleration corresponding to the pedal basic brake information.

[0055] In one embodiment, when the parking control device detects that both the hydraulic brake and the EPB of the vehicle fail, the deceleration corresponding to the pedal basic braking information may be determined as the second deceleration. In one example, the deceleration corresponding to the pedal basic braking information may be up to -4.88 m / s 2 .

[0056] S304: Decelerate and brake the vehicle according to the first deceleration and the second deceleration.

[0057] In the embodiment of the present application, the parking control device can decelerate and brake the vehicle according to the first deceleration and the second deceleration.

[0058] In one embodiment, the parking control device can decelerate and brake the vehicle according to a first deceleration determined by the VCU and a second deceleration determined according to the deceleration corresponding to the EPB switch information, the deceleration corresponding to the hydraulic brake information, and the deceleration corresponding to the pedal basic brake information.

[0059] In one implementation, the parking control device may decelerate and brake the vehicle according to a first deceleration determined by the VCU and a second deceleration determined according to a deceleration corresponding to the EPB switch information and a deceleration corresponding to the hydraulic brake information.

[0060] Specific can Figure 4 Take this as an example to illustrate: Figure 4 is a schematic diagram of a deceleration brake structure provided in an embodiment of the present application, such as Figure 4As shown, the deceleration brake includes VCU401, EPB402, and hydraulic brake 403, wherein VCU401 can send a braking request to hydraulic brake 403, and hydraulic brake 403 can respond to the braking request sent by VCU401 and feedback information of the brake to VCU401; VCU401 can also send a braking request to EPB402, and EPB402 can respond to the braking request sent by VCU401 to EPB402 by sending a dynamic braking instruction to hydraulic brake 403 so that hydraulic brake 403 sends feedback information to VCU401. The feedback information may include but is not limited to wheel speed, EPB switch information, hydraulic brake information, etc. The embodiment of the present application can determine the first deceleration, the deceleration corresponding to the EPB switch information, and the deceleration corresponding to the hydraulic brake information through the feedback information obtained by VCU, and determine the corresponding second deceleration according to the deceleration corresponding to the EPB switch information and the deceleration corresponding to the hydraulic brake information.

[0061] In one embodiment, when decelerating and braking the vehicle according to the first deceleration and the second deceleration, the parking control device may calculate the sum of the first deceleration and the second deceleration; and decelerate and brake the vehicle according to the sum of the first deceleration and the second deceleration.

[0062] For example, suppose the first deceleration determined by the VCU is -6 m / s 2 , the deceleration corresponding to the EPB switch information is -3.4m / s 2 , the deceleration corresponding to the hydraulic brake information is -5m / s 2 , the corresponding second deceleration can be determined as -8.4 m / s according to the deceleration corresponding to the EPB switch information and the deceleration corresponding to the hydraulic brake information. 2 , the first deceleration can be further calculated -6m / s 2 With the second deceleration -8.4m / s 2 The sum is -14.4m / s 2 .

[0063] In one embodiment, the parking control device may also obtain the wheel speed of the vehicle, and decelerate and brake the vehicle according to the wheel speed, the first deceleration, and the second deceleration of the vehicle. Alternatively, the parking control device may determine the deceleration corresponding to the wheel speed, the first deceleration, and the second deceleration of the vehicle according to a preset strategy, and decelerate and brake the vehicle according to the determined deceleration corresponding to the wheel speed, the first deceleration, and the second deceleration of the vehicle.

[0064] In the embodiment of the present application, the parking control device can obtain the brake pedal depth information of the vehicle when the brake pedal assist of the vehicle is detected to be ineffective, and determine the first deceleration corresponding to the brake pedal depth information through the vehicle's VCU according to the preset mapping relationship between depth and deceleration, and obtain the second deceleration corresponding to the parking brake information when the parking brake information of the vehicle is detected, and decelerate the vehicle according to the first deceleration and the second deceleration. The combination of multiple braking methods helps to better brake the vehicle and further improve the safety of the vehicle.

[0065] See also Figure 5 , Figure 5 This is a flow chart of another parking control method provided in an embodiment of the present application. As shown in the figure, the parking control method in this embodiment can be applied to a parking control device. The method may include at least the following steps.

[0066] S501: When it is detected that the brake pedal booster of the vehicle fails, detect whether one or more of the VCU, hydraulic brake, and EPB fails.

[0067] S502: When one or more failures of the VCU, hydraulic brake, and EPB are detected, the vehicle is decelerated and braked according to information of any one or more of the VCU, hydraulic brake, and EPB that have not failed and pedal basic brake information.

[0068] In one embodiment, when the parking control device detects that the vehicle's brake pedal assist, VCU and hydraulic brake have all failed, it obtains the deceleration corresponding to the EPB switch information and the deceleration corresponding to the pedal basic braking information; and decelerates and brakes the vehicle according to the deceleration corresponding to the EPB switch information and the deceleration corresponding to the pedal basic braking information.

[0069] In one example, when the parking control device detects that the brake pedal assist, VCU and hydraulic brake of the vehicle are all ineffective, the parking control device obtains the deceleration corresponding to the EPB switch information -3.4m / s 2 And obtain the deceleration corresponding to the pedal basic braking information -4.88m / s 2 ; According to the deceleration corresponding to the EPB switch information and the deceleration corresponding to the pedal basic brake information -8.28m / s 2 Slow down the vehicle by braking.

[0070] In one embodiment, the parking control device may also obtain the wheel speed of the vehicle, and decelerate and brake the vehicle according to the wheel speed of the vehicle, the deceleration corresponding to the EPB switch information, and the deceleration corresponding to the pedal basic brake information.

[0071] In one embodiment, when the parking control device detects that the vehicle's brake pedal assist, VCU, hydraulic brake and EPB have all failed, it obtains the deceleration corresponding to the pedal basic braking information; and decelerates and brakes the vehicle according to the deceleration corresponding to the pedal basic braking information.

[0072] In one example, when the parking control device detects that the brake pedal booster, VCU, hydraulic brake, and EPB of the vehicle are all failed, the parking control device obtains the deceleration corresponding to the pedal basic brake information -8.28m / s 2 ; According to the deceleration corresponding to the pedal basic braking information -4.88m / s 2 Slow down the vehicle by braking.

[0073] In one embodiment, the parking control device may also obtain the wheel speed of the vehicle, and decelerate and brake the vehicle according to the wheel speed of the vehicle and the deceleration corresponding to the pedal basic braking information.

[0074] In the embodiment of the present application, the parking control device can detect whether one or more of the VCU, hydraulic brake, and EPB have failed when the brake pedal assist of the vehicle is detected to have failed. When one or more of the VCU, hydraulic brake, and EPB are detected to have failed, the vehicle can be decelerated and braked according to information of any one or more of the VCU, hydraulic brake, and EPB that have not failed and the pedal basic brake information. This multiple failure braking scheme helps to brake the vehicle more effectively and further improve vehicle safety.

[0075] See also Figure 6 , Figure 6 6 is a schematic diagram of the structure of a parking control device provided in an embodiment of the present application. As shown in the figure, the parking control device VCU in this embodiment may include an acquisition unit 601, a processing unit 602 and a braking unit 603, wherein:

[0076] An acquisition unit 601 is used to acquire brake pedal depth information of the vehicle when a brake pedal boost failure of the vehicle is detected, wherein the brake pedal boost failure refers to a braking deceleration being less than a preset threshold;

[0077] The processing unit 602 is configured to determine, through the VCU of the vehicle, a first deceleration corresponding to the brake pedal depth information according to a preset mapping relationship between the depth and the deceleration;

[0078] The braking unit 603 is used to perform deceleration braking on the vehicle according to the determined first deceleration corresponding to the brake pedal depth information.

[0079] Furthermore, the braking unit 603 is also used for:

[0080] When parking brake information of the vehicle is detected, acquiring a second deceleration corresponding to the parking brake information, wherein the parking brake information includes one or more of electronic parking brake system EPB switch information, hydraulic brake information, and pedal basic brake information;

[0081] The vehicle is decelerated and braked according to the first deceleration and the second deceleration.

[0082] Further, when the braking unit 603 detects the parking brake information of the vehicle and acquires the second deceleration corresponding to the parking brake information, it is specifically used to:

[0083] When the EPB switch information of the vehicle is detected, acquiring the deceleration corresponding to the EPB switch information; and / or,

[0084] When the hydraulic braking information of the vehicle is detected, acquiring the deceleration corresponding to the hydraulic braking information; and / or,

[0085] When pedal basic braking information of the vehicle is detected, acquiring a deceleration corresponding to the pedal basic braking information;

[0086] A second deceleration corresponding to the parking brake information is determined based on one or more of a deceleration corresponding to the EPB switch information, a deceleration corresponding to the hydraulic brake information, and a deceleration corresponding to the pedal basic brake information.

[0087] Further, when the brake unit 603 determines the second deceleration corresponding to the parking brake information according to one or more of the deceleration corresponding to the EPB switch information, the deceleration corresponding to the hydraulic brake information, and the deceleration corresponding to the pedal basic brake information, it is specifically used to:

[0088] The second deceleration is determined according to the deceleration corresponding to the EPB switch information, the deceleration corresponding to the hydraulic brake information, and the deceleration corresponding to the pedal basic brake information; or,

[0089] In a case where it is detected that both the hydraulic brake and the EPB of the vehicle fail, the deceleration corresponding to the pedal basic brake information is determined to be the second deceleration.

[0090] Furthermore, the braking unit 603 is also used for:

[0091] When it is detected that the brake pedal booster, the VCU and the hydraulic brake of the vehicle are all ineffective, obtaining a deceleration corresponding to the EPB switch information and obtaining a deceleration corresponding to the pedal basic brake information;

[0092] The vehicle is decelerated and braked according to the deceleration corresponding to the EPB switch information and the deceleration corresponding to the pedal base brake information.

[0093] Furthermore, the braking unit 603 is also used for:

[0094] When it is detected that the brake pedal booster, the VCU, the hydraulic brake, and the EPB of the vehicle are all failed, obtaining a deceleration corresponding to the pedal basic brake information;

[0095] The vehicle is decelerated and braked according to a deceleration corresponding to the pedal basic brake information.

[0096] Furthermore, when the brake pedal boost failure of the vehicle is detected, the acquisition unit 601 is further used before acquiring the brake pedal depth information of the vehicle:

[0097] Acquiring wheel speed information of the vehicle, and detecting whether the wheel speed of the vehicle is greater than a wheel speed threshold according to the wheel speed information;

[0098] In the case where it is detected that the wheel speed of the vehicle is greater than the wheel speed threshold, the step of acquiring the brake pedal depth information of the vehicle in the case where it is detected that the brake pedal booster of the vehicle fails is performed.

[0099] Further, when the braking unit 603 performs deceleration braking on the vehicle according to the first deceleration and the second deceleration, it is specifically used to:

[0100] calculating a sum of the first deceleration and the second deceleration;

[0101] The vehicle is decelerated and braked according to the sum of the first deceleration and the second deceleration.

[0102] In the embodiment of the present application, the parking control device obtains the brake pedal depth information of the vehicle when it detects that the brake pedal assist fails, and determines the first deceleration corresponding to the brake pedal depth information through the vehicle's VCU according to a preset mapping relationship between depth and deceleration; the vehicle is decelerated and braked according to the determined first deceleration corresponding to the brake pedal depth information, thereby realizing multiple braking schemes for braking the vehicle according to the brake pedal depth information when the brake pedal assist fails, which helps to further improve the safety of the vehicle.

[0103] See also Figure 7 , Figure 71 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. As shown in the figure, the electronic device in this embodiment may include: one or more processors 701, memory 702, bus 703 and communication interface 704, the processor 701, communication interface 704 and memory 702 are connected through bus 703; memory 702 is used to store programs; processor 701 is used to call the program stored in the above memory through bus 703, and perform the following steps:

[0104] When a brake pedal boost failure of a vehicle is detected, obtaining brake pedal depth information of the vehicle, wherein the brake pedal boost failure refers to a braking deceleration being less than a preset threshold;

[0105] Determining, by the VCU of the vehicle, a first deceleration corresponding to the brake pedal depth information according to a preset mapping relationship between depth and deceleration;

[0106] The vehicle is decelerated and braked according to the determined first deceleration corresponding to the brake pedal depth information.

[0107] Furthermore, the processor 701 is further configured to:

[0108] When parking brake information of the vehicle is detected, acquiring a second deceleration corresponding to the parking brake information, wherein the parking brake information includes one or more of electronic parking brake system EPB switch information, hydraulic brake information, and pedal basic brake information;

[0109] The vehicle is decelerated and braked according to the first deceleration and the second deceleration.

[0110] Further, when the processor 701 detects the parking brake information of the vehicle and acquires the second deceleration corresponding to the parking brake information, it is specifically configured to:

[0111] When the EPB switch information of the vehicle is detected, acquiring the deceleration corresponding to the EPB switch information; and / or,

[0112] When the hydraulic braking information of the vehicle is detected, acquiring the deceleration corresponding to the hydraulic braking information; and / or,

[0113] When pedal basic braking information of the vehicle is detected, acquiring a deceleration corresponding to the pedal basic braking information;

[0114] A second deceleration corresponding to the parking brake information is determined based on one or more of a deceleration corresponding to the EPB switch information, a deceleration corresponding to the hydraulic brake information, and a deceleration corresponding to the pedal basic brake information.

[0115] Further, when the processor 701 determines the second deceleration corresponding to the parking brake information according to one or more of the deceleration corresponding to the EPB switch information, the deceleration corresponding to the hydraulic brake information, and the deceleration corresponding to the pedal basic brake information, it is specifically used to:

[0116] The second deceleration is determined according to the deceleration corresponding to the EPB switch information, the deceleration corresponding to the hydraulic brake information, and the deceleration corresponding to the pedal basic brake information; or,

[0117] In a case where it is detected that both the hydraulic brake and the EPB of the vehicle fail, the deceleration corresponding to the pedal basic brake information is determined to be the second deceleration.

[0118] Furthermore, the processor 701 is further configured to:

[0119] When it is detected that the brake pedal booster, the VCU and the hydraulic brake of the vehicle are all ineffective, obtaining a deceleration corresponding to the EPB switch information and obtaining a deceleration corresponding to the pedal basic brake information;

[0120] The vehicle is decelerated and braked according to the deceleration corresponding to the EPB switch information and the deceleration corresponding to the pedal base brake information.

[0121] Furthermore, the processor 701 is further configured to:

[0122] When it is detected that the brake pedal booster, the VCU, the hydraulic brake, and the EPB of the vehicle are all failed, obtaining a deceleration corresponding to the pedal basic brake information;

[0123] The vehicle is decelerated and braked according to a deceleration corresponding to the pedal basic brake information.

[0124] Further, when the brake pedal boost failure of the vehicle is detected, the processor 701 is further used before obtaining the brake pedal depth information of the vehicle:

[0125] Acquiring wheel speed information of the vehicle, and detecting whether the wheel speed of the vehicle is greater than a wheel speed threshold according to the wheel speed information;

[0126] In the case where it is detected that the wheel speed of the vehicle is greater than the wheel speed threshold, the step of acquiring the brake pedal depth information of the vehicle in the case where it is detected that the brake pedal booster of the vehicle fails is performed.

[0127] Further, when the processor 701 performs deceleration braking on the vehicle according to the first deceleration and the second deceleration, it is specifically configured to:

[0128] calculating a sum of the first deceleration and the second deceleration;

[0129] The vehicle is decelerated and braked according to the sum of the first deceleration and the second deceleration.

[0130] In the embodiment of the present application, the parking control device obtains the brake pedal depth information of the vehicle when it detects that the brake pedal assist fails, and determines the first deceleration corresponding to the brake pedal depth information through the vehicle's VCU according to a preset mapping relationship between depth and deceleration; the vehicle is decelerated and braked according to the determined first deceleration corresponding to the brake pedal depth information, thereby realizing multiple braking schemes for braking the vehicle according to the brake pedal depth information when the brake pedal assist fails, which helps to further improve the safety of the vehicle.

[0131] It should be understood that in the embodiment of the present application, the processor 701 may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0132] The memory 702 may include a read-only memory and a random access memory, and provide instructions and data to the processor 701. A portion of the memory 702 may also include a non-volatile random access memory. For example, the memory 702 may also store information about the device type.

[0133] In a specific implementation, the processor 701 described in the embodiment of the present application can execute the implementation method described in the parking control method provided in the embodiment of the present application, and can also execute the implementation method of the parking control device described in the embodiment of the present application, which will not be repeated here.

[0134] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0135] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the terminals and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0136] In the several embodiments provided in the present application, it should be understood that the disclosed terminal and method can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, or it can be an electrical, mechanical or other form of connection.

[0137] The steps in the method of the embodiment of the present application can be adjusted in order, combined and deleted according to actual needs.

[0138] The units in the terminal in the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0139] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present application.

[0140] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0141] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0142] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A parking control method, characterized in that: The method is applied to a parking control device, the parking control device includes a vehicle-mounted control unit VCU, and the method includes: When a brake pedal boost failure of a vehicle is detected, obtaining brake pedal depth information of the vehicle, wherein the brake pedal boost failure refers to a braking deceleration being less than a preset threshold; Determining, by the VCU of the vehicle, a first deceleration corresponding to the brake pedal depth information according to a preset mapping relationship between depth and deceleration; The vehicle is decelerated and braked according to the determined first deceleration corresponding to the brake pedal depth information.

2. The method according to claim 1, characterized in that The method further comprises: When parking brake information of the vehicle is detected, acquiring a second deceleration corresponding to the parking brake information, wherein the parking brake information includes one or more of electronic parking brake system EPB switch information, hydraulic brake information, and pedal basic brake information; The vehicle is decelerated and braked according to the first deceleration and the second deceleration.

3. The method according to claim 2, characterized in that The step of acquiring a second deceleration corresponding to the parking brake information when the parking brake information of the vehicle is detected includes: When the EPB switch information of the vehicle is detected, acquiring the deceleration corresponding to the EPB switch information; and / or, When the hydraulic braking information of the vehicle is detected, acquiring the deceleration corresponding to the hydraulic braking information; and / or, When pedal basic braking information of the vehicle is detected, acquiring a deceleration corresponding to the pedal basic braking information; A second deceleration corresponding to the parking brake information is determined based on one or more of a deceleration corresponding to the EPB switch information, a deceleration corresponding to the hydraulic brake information, and a deceleration corresponding to the pedal basic brake information.

4. The method according to claim 3, characterized in that The determining, according to one or more of the deceleration corresponding to the EPB switch information, the deceleration corresponding to the hydraulic brake information, and the deceleration corresponding to the pedal basic brake information, the second deceleration corresponding to the parking brake information comprises: The second deceleration is determined according to the deceleration corresponding to the EPB switch information, the deceleration corresponding to the hydraulic brake information, and the deceleration corresponding to the pedal basic brake information; or, In a case where it is detected that both the hydraulic brake and the EPB of the vehicle fail, the deceleration corresponding to the pedal basic brake information is determined to be the second deceleration.

5. The method according to claim 2, characterized in that: The method further comprises: When it is detected that the brake pedal booster, the VCU and the hydraulic brake of the vehicle are all ineffective, obtaining a deceleration corresponding to the EPB switch information and obtaining a deceleration corresponding to the pedal basic brake information; The vehicle is decelerated and braked according to the deceleration corresponding to the EPB switch information and the deceleration corresponding to the pedal base brake information.

6. The method according to claim 2, characterized in that The method further comprises: When it is detected that the brake pedal booster, the VCU, the hydraulic brake, and the EPB of the vehicle are all failed, obtaining a deceleration corresponding to the pedal basic brake information; The vehicle is decelerated and braked according to a deceleration corresponding to the pedal basic brake information.

7. The method according to claim 1, characterized in that Before obtaining the brake pedal depth information of the vehicle when the brake pedal booster failure of the vehicle is detected, the method further includes: Acquiring wheel speed information of the vehicle, and detecting whether the wheel speed of the vehicle is greater than a wheel speed threshold according to the wheel speed information; In the case where it is detected that the wheel speed of the vehicle is greater than the wheel speed threshold, the step of acquiring the brake pedal depth information of the vehicle in the case where it is detected that the brake pedal booster of the vehicle fails is performed.

8. The method according to claim 2, characterized in that: The deceleration braking of the vehicle according to the first deceleration and the second deceleration includes: calculating a sum of the first deceleration and the second deceleration; The vehicle is decelerated and braked according to the sum of the first deceleration and the second deceleration.

9. A parking control device, characterized in that: The parking control device includes a VCU, and the device includes: an acquisition unit, configured to acquire brake pedal depth information of the vehicle when a brake pedal boost failure of the vehicle is detected, wherein the brake pedal boost failure refers to a braking deceleration being less than a preset threshold; a processing unit, configured to determine, through a VCU of the vehicle, a first deceleration corresponding to the brake pedal depth information according to a preset mapping relationship between the depth and the deceleration; A braking unit is used to perform deceleration braking on the vehicle according to the determined first deceleration corresponding to the brake pedal depth information.

10. An electronic device, characterized in that: The electronic device comprises a processor, a memory, a bus and a communication interface, wherein the processor, the communication interface and the memory are connected via the bus; The memory is used to store programs; The processor is used to call the program stored in the memory through the bus to execute any one of the methods of claims 1-8.

11. A vehicle, characterized in that: The vehicle includes a car body and a parking control device, and the parking control device is used to execute the method according to any one of claims 1 to 8 to manage the vehicle.

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