Control method, device and system of electronic hand brake and vehicle

Abstract

The embodiment of the invention provides a control method, device and system of an electronic hand brake and a vehicle, which can realize temporary parking without stepping on a brake pedal all the time under the condition of meeting the individual requirements of a driver that the driver does not want to shift gears and do not want to start automatic parking, so that the driving experience of the driver is improved. The control method of the electronic hand brake comprises the steps that if it is determined that a first precondition for entering a parking state is met, and pressing operation for a parking gear key is detected; if it is determined that the pressing duration of the pressing operation is not smaller than a first set threshold value, first state information representing that a parking gear key is not pressed down is sent to a gear shifting controller, and the first state information is used for controlling gear shifting control to prohibit sending of a parking gear switching request to a vehicle control unit; and controlling the electronic hand brake to execute starting operation.

Description

[Technical field]

[0001] The embodiments of the present application relate to the field of vehicle control technology, and in particular, to a control method, device, system and vehicle for an electronic handbrake. [Background technology]

[0002] When the driver is driving the vehicle, there may be a scene where the vehicle needs to be parked for a short time. In the related art, if the driver does not want to switch gears and does not want to turn on the automatic parking function (or there is no automatic parking function), the driver can only keep pressing the brake pedal, which affects the driver's operating experience. [Summary of the invention]

[0003] The embodiments of the present application provide a control method, device, system and vehicle for an electronic handbrake, which can achieve parking without having to keep pressing the brake pedal when meeting the driver's personalized needs such as not wanting to change gears or turn on automatic parking, thereby improving the driver's driving experience.

[0004] In a first aspect, an embodiment of the present application provides a method for controlling an electronic handbrake, the method comprising:

[0005] If it is determined that the first precondition for entering the parking state is met, and a pressing operation on the parking gear button is detected;

[0006] If it is determined that the pressing time of the pressing operation is not less than a first set threshold, first state information indicating that the parking gear button is not pressed is sent to the shift controller, and the first state information is used to control the shift controller to prohibit sending a parking gear switching request to the vehicle controller;

[0007] Control the electronic parking brake to perform an enabling operation.

[0008] In the embodiment of the present application, if the first precondition for entering the parking state is met and the parking gear button is long pressed, the vehicle controller can be controlled not to switch gears, that is, not to switch to the parking gear, and the electronic handbrake is activated at the same time. In other words, the function of activating the electronic handbrake is integrated into the parking gear button, and the independent button of the electronic handbrake is cancelled. While reducing the cost of the whole vehicle, temporary parking is achieved without shifting gears or turning on automatic parking, which improves the driving experience of the driver.

[0009] Optionally, the first precondition includes: the vehicle power is in the ON gear, the vehicle speed is not greater than a second set threshold, the electronic handbrake is in a released state, the brake pedal stroke is not less than a third set threshold, and the vehicle is in a target gear, which is a forward gear, a reverse gear, or a neutral gear.

[0010] In the embodiment of the present application, the vehicle will only respond to a long press of the parking gear button when the vehicle power is in the ON gear, the vehicle speed is not greater than the second set threshold (that is, the vehicle is stationary), the electronic handbrake is in the released state, the brake pedal travel is not less than the third set threshold (that is, the brake pedal is pressed), and the vehicle is in the target gear (forward gear, reverse gear or neutral gear), thereby activating the electronic handbrake for parking without switching to the parking gear and activating the automatic parking function.

[0011] Optionally, the method further includes:

[0012] If the second precondition for entering the braking state is met and a pressing operation on the parking gear button is detected;

[0013] If it is determined that the pressing time of the pressing operation is not less than a first set threshold, first state information indicating that the parking gear button is not pressed is sent to the shift controller, and the first state information is used to control the shift controller to prohibit sending a parking gear switching request to the vehicle controller;

[0014] Control the electronic parking brake to perform an enabling operation.

[0015] In the embodiment of the present application, if the second precondition for entering the emergency braking state is met and the parking gear button is long pressed, the electronic handbrake can be activated for emergency braking without entering the control logic of the gear switching. In other words, the function of activating the electronic handbrake is integrated into the parking gear button, the independent physical button of the electronic handbrake is cancelled, and the emergency braking is realized during the driving process of the vehicle, while reducing the cost of the whole vehicle.

[0016] Optionally, the second precondition includes: the vehicle power is in the ON gear, the vehicle speed is greater than a second set threshold, the electronic handbrake is in a released state, and the vehicle is in a target gear, which is a forward gear, a reverse gear, or a neutral gear.

[0017] In the embodiment of the present application, the vehicle will only respond to the long press operation of the parking gear button and enable the electronic handbrake for emergency braking when the vehicle power is in the ON gear, the vehicle speed is greater than the second set threshold (the vehicle is in driving state), the electronic handbrake is in the released state, and the vehicle is in the target gear (forward gear, reverse gear or neutral gear).

[0018] Optionally, the method further includes:

[0019] If it is determined that the third precondition for exiting the parking state is satisfied, and a pressing operation on the parking gear button is detected;

[0020] If it is determined that the pressing time of the pressing operation is not less than the first set threshold, sending the first state information indicating that the parking gear button is not pressed to the shift controller;

[0021] Control the electronic handbrake to perform a release operation.

[0022] In the embodiment of the present application, if the third precondition for exiting the parking state is met and the parking gear button is long pressed, the electronic parking brake can be released more conveniently.

[0023] Optionally, the third precondition includes: the vehicle power is in the ON gear, the vehicle speed is not greater than the second set threshold, the brake pedal stroke is not less than the third set threshold, the electronic handbrake is enabled, and the vehicle is in the target gear, which is forward gear, reverse gear or neutral gear.

[0024] In the embodiment of the present application, the vehicle will only respond to a long press of the parking gear button and enable the electronic handbrake for emergency braking when the vehicle power is in the ON gear, the vehicle speed is not greater than the second set threshold, the brake pedal travel is not less than the third set threshold, the electronic handbrake is in the enabled state, and the vehicle is in the target gear (forward gear, reverse gear or neutral gear).

[0025] Optionally, the method further includes:

[0026] If it is determined that the first precondition for entering the parking state is met, and a pressing operation on the parking gear button is detected;

[0027] If it is determined that the pressing time of the pressing operation is less than the first set threshold, second state information indicating that the parking gear button is pressed is sent to the shift controller, and the second state information is used to control the shift controller to send a parking gear switching request to the vehicle controller;

[0028] Receiving a gear switching message from the vehicle controller;

[0029] If it is determined that the gear shift message indicates that the vehicle is currently shifted to the parking gear, the electronic parking brake is controlled to perform an activation operation.

[0030] In the embodiment of the present application, if the first precondition for entering the parking state is met and the parking gear button is short-pressed, the vehicle controller can be controlled to switch gears and activate the electronic handbrake at the same time. In other words, the function of activating the electronic handbrake is integrated into the parking gear button, and the independent button of the electronic handbrake is cancelled. While reducing the cost of the vehicle, it is compatible with the function of automatically activating the electronic handbrake when switching to the parking gear.

[0031] In a second aspect, an embodiment of the present application provides a control device for an electronic handbrake, the device comprising:

[0032] A detection unit, configured to, if it is determined that a first precondition for entering a parking state is satisfied and a pressing operation on a parking gear button is detected;

[0033] a sending unit, configured to send first state information indicating that the parking gear button is not pressed to the shift controller if it is determined that the pressing time of the pressing operation is not less than a first set threshold, wherein the first state information is used to control the shift controller to prohibit sending a parking gear switching request to the vehicle controller;

[0034] A control unit is used to control the electronic handbrake to perform an enabling operation.

[0035] Optionally, the first precondition includes: the vehicle power is in the ON gear, the vehicle speed is not greater than a second set threshold, the electronic handbrake is in a released state, the brake pedal stroke is not less than a third set threshold, and the vehicle is in a target gear, which is a forward gear, a reverse gear, or a neutral gear.

[0036] Optionally, the detection unit is further used for:

[0037] If the second precondition for entering the braking state is met and a pressing operation on the parking gear button is detected;

[0038] The sending unit is also used for:

[0039] If it is determined that the pressing time of the pressing operation is not less than a first set threshold, first state information indicating that the parking gear button is not pressed is sent to the shift controller, and the first state information is used to control the shift controller to prohibit sending a parking gear switching request to the vehicle controller;

[0040] The control unit is also used for:

[0041] Control the electronic parking brake to perform an enabling operation.

[0042] Optionally, the second precondition includes: the vehicle power is in the ON gear, the vehicle speed is greater than a second set threshold, the electronic handbrake is in a released state, and the vehicle is in a target gear, which is a forward gear, a reverse gear, or a neutral gear.

[0043] Optionally, the detection unit is further used for:

[0044] If it is determined that the third precondition for exiting the parking state is satisfied, and a pressing operation on the parking gear button is detected;

[0045] The sending unit is also used for:

[0046] If it is determined that the pressing time of the pressing operation is not less than the first set threshold, sending the first state information indicating that the parking gear button is not pressed to the shift controller;

[0047] The control unit is also used for:

[0048] Control the electronic handbrake to perform a release operation.

[0049] Optionally, the third precondition includes: the vehicle power is in the ON gear, the vehicle speed is not greater than the second set threshold, the brake pedal stroke is not less than the third set threshold, the electronic handbrake is enabled, and the vehicle is in the target gear, which is forward gear, reverse gear or neutral gear.

[0050] Optionally, the detection unit is further used for:

[0051] If it is determined that the first precondition for entering the parking state is met, and a pressing operation on the parking gear button is detected;

[0052] The sending unit is also used for:

[0053] If it is determined that the pressing time of the pressing operation is less than the first set threshold, second state information indicating that the parking gear button is pressed is sent to the shift controller, and the second state information is used to control the shift controller to send a parking gear switching request to the vehicle controller;

[0054] The device also includes:

[0055] A receiving unit, used for receiving a gear shift message from the vehicle controller;

[0056] The control unit is also used for:

[0057] If it is determined that the gear shift message indicates that the vehicle is currently shifted to the parking gear, the electronic parking brake is controlled to perform an activation operation.

[0058] In a third aspect, an embodiment of the present application provides an electronic stability control system, comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein when the computer program instructions are executed by the processor, the electronic stability control system is triggered to execute the steps of the method described in any embodiment of the first aspect.

[0059] In a fourth aspect, an embodiment of the present application provides a vehicle, comprising the electronic stability control system in the embodiment of the third aspect.

[0060] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium is used to store computer instructions, and when the computer is running, the computer enables the computer to execute the steps of the method described in any embodiment of the first aspect.

[0061] It should be understood that the second to fifth aspects of the embodiments of the present application are consistent with the technical solutions of the first aspect of the embodiments of the present application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation methods are similar and will not be repeated here.

Brief Description of the Drawings

[0062] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0063] Figure 1 A flow chart of a method for activating an electronic handbrake in a temporary parking scenario provided in an embodiment of the present application;

[0064] Figure 2 A flow chart of a method for activating an electronic parking brake in a long-term parking scenario provided in an embodiment of the present application;

[0065] Figure 3 A flow chart of a method for activating an electronic handbrake in an emergency braking scenario provided in an embodiment of the present application;

[0066] Figure 4 A flow chart of a method for releasing an electronic handbrake in an exit parking scenario provided in an embodiment of the present application;

[0067] Figure 5 A schematic diagram of the structure of a control device for an electronic handbrake provided in an embodiment of the present application;

[0068] Figure 6 A schematic diagram of the structure of an electronic stability control system provided in an embodiment of the present application;

[0069] Figure 7 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. [Specific implementation method]

[0070] In order to better understand the technical solution of this specification, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0071] It should be clear that the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this specification.

[0072] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit this specification. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0073] When the user is driving the vehicle, there may be a situation where the vehicle needs to be parked temporarily, for example, on a ramp due to a traffic jam, or at an intersection due to waiting for a traffic light.

[0074] In the related art, if the driver does not want to switch gears and does not want to turn on automatic parking (or there is no automatic parking function), he can only keep pressing the brake pedal, which affects the driver's operating experience.

[0075] In view of this, an embodiment of the present application provides a control method for an electronic handbrake, in which the electronic handbrake function is integrated into the parking gear button, thereby eliminating the physical switch of the electronic handbrake and reducing the cost of the entire vehicle; at the same time, when the pre-conditions for parking are met, by long pressing the parking gear button, the electronic handbrake can be enabled for parking without switching gears and turning on the automatic parking function, thereby improving the driver's driving experience.

[0076] The technical solution protected by the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0077] In the embodiment of the present application, the activation / release of the electronic handbrake can be controlled by an electronic parking brake system (EPB) or an electronic stability control system (ESC) integrated with EPB. The entire solution is described below using an ESC integrated with EPB as an example.

[0078] The following is a detailed description of the scheme for activating / releasing the electronic parking brake based on the parking gear button in different scenarios.

[0079] First, when the parking conditions are met, long press the parking gear button to activate the electronic handbrake to achieve temporary parking.

[0080] See also Figure 1 , is a flow chart of a method for activating an electronic parking brake in a temporary parking scenario provided by an embodiment of the present application. The flow of the method is described as follows:

[0081] Step 101: If it is determined that the first precondition for entering the parking state is met, and a pressing operation on the parking gear button is detected.

[0082] In an embodiment of the present application, the functions of activating and releasing the electronic handbrake are integrated into the parking gear button. The parking gear button can be located on the center console of the vehicle or on the armrest gear. The present application does not impose any special restrictions on this.

[0083] If the vehicle currently meets the first precondition for entering the parking state, for example, the vehicle power is in the ON gear, the vehicle speed is not greater than the second set threshold (i.e. the vehicle is stationary), the electronic handbrake is in the released state, the brake pedal travel is not less than the third set threshold (i.e. the brake pedal is pressed), and the vehicle is in the target gear, which is the forward gear (D gear), reverse gear (R gear) or neutral gear (N gear), if the driver wants to park, the parking gear button can be long pressed. At this time, the ESC can detect whether there is a pressing operation on the parking gear button.

[0084] Step 102: If it is determined that the pressing duration of the pressing operation is not less than the first set threshold, first state information indicating that the parking gear button is not pressed is sent to the shift controller, and the first state information is used to control the shift controller to prohibit sending a parking gear switching request to the vehicle controller.

[0085] In the embodiment of the present application, if the ESC detects that the driver's pressing operation is a long press operation, the first state information will be sent to the shift controller, and the first state information indicates that the parking gear button has not been pressed. After receiving the first state information, the shift controller can know that the parking gear button has not been pressed, and thus will not send a parking gear switching request to the vehicle controller. If the vehicle controller does not receive the parking gear switching request, it will not switch from the current target gear to the parking gear.

[0086] It is worth noting that the driver's long press operation can be replaced by multiple press operations, that is, the number of presses per unit time exceeds the set threshold, thereby also triggering the ESC to send the above-mentioned first state information to the shift controller, thereby achieving the effect of not switching to the parking gear.

[0087] Step 103: Control the electronic parking brake to perform an activation operation.

[0088] In the embodiment of the present application, the ESC can control the electronic handbrake to perform the activation operation, that is, control the EPB caliper to clamp, thereby achieving temporary parking, while ensuring that the vehicle will not switch to the parking gear.

[0089] In the above embodiment, the function of activating the electronic handbrake is integrated into the parking gear button, and the independent button of the electronic handbrake is eliminated. While reducing the cost of the entire vehicle, temporary parking is achieved without changing gears or turning on automatic parking, thereby improving the driver's driving experience.

[0090] Second, when the parking conditions are met, long press the parking gear button to activate the electronic handbrake to achieve long-term parking.

[0091] See also Figure 2, is a flow chart of a method for activating an electronic parking brake in a long-term parking scenario provided by an embodiment of the present application. The flow of the method is described as follows:

[0092] Step 201: If it is determined that the first precondition for entering the parking state is met, and a pressing operation on the parking gear button is detected.

[0093] In an embodiment of the present application, the functions of activating and releasing the electronic handbrake are integrated into the parking gear button. The parking gear button can be located on the center console of the vehicle or on the armrest gear. The present application does not impose any special restrictions on this.

[0094] If the vehicle currently meets the first precondition for entering the parking state, for example, the vehicle power is in the ON gear, the vehicle speed is not greater than the second set threshold (the vehicle is stationary), the electronic handbrake is in the released state, the brake pedal travel is not less than the third set threshold (that is, the brake pedal is stepped on), and the vehicle is in the target gear, which is the forward gear (D gear), reverse gear (R gear) or neutral gear (N gear), if the driver wants to park for a long time, then the parking gear button can be pressed briefly. At this time, the ESC can detect whether there is a pressing operation on the parking gear button.

[0095] Step 202: If it is determined that the pressing duration of the pressing operation is less than the first set threshold, second state information indicating that the parking gear button is pressed is sent to the shift controller, and the second state information is used to control the shift controller to send a parking gear switching request to the vehicle controller.

[0096] In the embodiment of the present application, if the ESC detects that the driver's pressing operation is a short press operation, the second state information will be sent to the shift controller, and the second state information indicates that the parking gear button is pressed. After receiving the second state information, the shift controller can know that the parking gear button is pressed, and then send a parking gear switching request to the vehicle controller. When the vehicle controller receives the parking gear switching request, it will switch from the current target gear to the parking gear.

[0097] Step 203: receiving a gear switching message from a vehicle controller.

[0098] Step 204: If it is determined that the gear shift message indicates that the vehicle is currently shifted to the parking gear, the electronic parking brake is controlled to perform an activation operation.

[0099] In an embodiment of the present application, if the ESC determines that the vehicle controller has switched gears, that is, switched from the current target gear to the parking gear, the electronic handbrake can be controlled to perform an activation operation, that is, the EPB caliper is controlled to clamp, thereby achieving long-term parking.

[0100] In the above embodiment, the function of activating the electronic handbrake is integrated into the parking gear button, and the independent button of the electronic handbrake is eliminated. While reducing the cost of the entire vehicle, it is compatible with the function of automatically activating the electronic handbrake when switching to the parking gear.

[0101] Third, when the emergency braking conditions are met, long press the parking gear button to activate the electronic handbrake for emergency braking.

[0102] See also Figure 3 , is a flow chart of a method for enabling an electronic handbrake in an emergency braking scenario provided by an embodiment of the present application. The flow of the method is described as follows:

[0103] Step 301: If the second precondition for entering the braking state is met, and a pressing operation on the parking gear button is detected.

[0104] In an embodiment of the present application, the functions of activating and releasing the electronic handbrake are integrated into the parking gear button. The parking gear button can be located on the center console of the vehicle or on the armrest gear. The present application does not impose any special restrictions on this.

[0105] If the vehicle currently meets the second precondition for entering the braking state, for example, the vehicle power is in the ON gear, the vehicle speed is greater than the second set threshold (i.e. the vehicle is in the driving state), the electronic handbrake is in the released state, and the vehicle is in the target gear, the target gear is the forward gear (D gear), the reverse gear (R gear) or the neutral gear (N gear). If the driver wants to perform emergency braking, he can press and hold the parking gear button. At this time, ESC can detect whether there is a pressing operation on the parking gear button.

[0106] Step 302: If it is determined that the pressing duration of the pressing operation is not less than the first set threshold, first state information indicating that the parking gear button is not pressed is sent to the shift controller, and the first state information is used to control the shift controller to prohibit sending a parking gear switching request to the vehicle controller.

[0107] In the embodiment of the present application, if the ESC detects that the driver's pressing operation is a long press operation, the first state information will be sent to the shift controller, and the first state information indicates that the parking gear button has not been pressed. After receiving the first state information, the shift controller can know that the parking gear button has not been pressed, and thus will not send a parking gear switching request to the vehicle controller. If the vehicle controller does not receive the parking gear switching request, it will not switch from the current target gear to the parking gear.

[0108] It is worth noting that the driver's long press operation can be replaced by multiple press operations, that is, the number of presses per unit time exceeds the set threshold, thereby also triggering the ESC to send the above-mentioned first state information to the shift controller, thereby achieving the effect of not switching to the parking gear.

[0109] Step 303: Control the electronic parking brake to perform an activation operation.

[0110] In the embodiment of the present application, the ESC can independently control the electronic handbrake to perform the activation operation, that is, control the dynamic clamping of the EPB caliper, thereby achieving emergency braking, while ensuring that the vehicle will not switch to the parking gear.

[0111] In the above embodiment, the function of activating the electronic handbrake is integrated into the parking gear button, eliminating the independent physical button of the electronic handbrake, reducing the cost of the whole vehicle. At the same time, emergency braking is achieved during vehicle driving without entering the control logic of gear switching.

[0112] Fourth, when the conditions for exiting parking are met, long press the parking gear button to release the electronic parking brake and exit parking.

[0113] See also Figure 4 , is a flow chart of a method for releasing an electronic parking brake in an exit parking scenario provided by an embodiment of the present application. The flow of the method is described as follows:

[0114] Step 401: If it is determined that the third precondition for exiting the parking state is satisfied, and a pressing operation on the parking gear button is detected.

[0115] In an embodiment of the present application, the functions of activating and releasing the electronic handbrake are integrated into the parking gear button. The parking gear button can be located on the center console of the vehicle or on the armrest gear. The present application does not impose any special restrictions on this.

[0116] If the vehicle currently meets the third precondition for exiting the parking state, for example, the vehicle power is in the ON gear, the vehicle speed is not greater than the second set threshold (the vehicle is stationary), the brake pedal travel is not less than the third set threshold (the brake pedal is pressed), the electronic handbrake is enabled, and the vehicle is in the target gear, which is the forward gear (D gear), reverse gear (R gear) or neutral gear (N gear). If the driver wants to exit the parking state, the parking gear button can be long pressed. At this time, ESC can detect whether there is a pressing operation on the parking gear button.

[0117] Step 402: If it is determined that the pressing duration of the pressing operation is not less than the first set threshold, first state information indicating that the parking gear button is not pressed is sent to the shift controller.

[0118] In the embodiment of the present application, if the ESC detects that the driver's pressing operation is a long press operation, the first state information will be sent to the shift controller, and the first state information indicates that the parking gear button has not been pressed. After receiving the first state information, the shift controller can know that the parking gear button has not been pressed, and thus will not send a parking gear switching request to the vehicle controller. If the vehicle controller does not receive the parking gear switching request, it will not switch from the current target gear to the parking gear.

[0119] It is worth noting that the driver's long press operation can be replaced by multiple press operations, that is, the number of presses per unit time exceeds the set threshold, thereby also triggering the ESC to send the above-mentioned first state information to the shift controller, thereby achieving the effect of not switching to the parking gear.

[0120] Step 403: Control the electronic parking brake to perform a release operation.

[0121] In the embodiment of the present application, the ESC can control the release of the electronic handbrake, that is, control the release of the EPB caliper, while ensuring that the vehicle will not switch to the parking gear, thereby realizing the exit from the parking scene.

[0122] It is worth noting that when the target gear in the third prerequisite for exiting the parking state is neutral (N gear), if the driver long presses the parking gear button, the electronic handbrake can be released, thereby meeting the towing needs when the vehicle breaks down.

[0123] In some embodiments, if the fourth precondition for exiting the parking state is met, for example, the fourth precondition is that the vehicle power supply is in the ON gear, the vehicle speed is not greater than the second set threshold, the brake pedal stroke is less than the third set threshold, the electronic handbrake is in the enabled state, the seat belt is enabled, the main driving door is closed, and the motor torque output is greater than the fourth set threshold. If it is detected that the driver toggles the gear, the parking gear is switched to the forward gear (D gear) or the R gear, it can be considered that the driver wants to exit the parking state. At this time, the ESC can send the third state information to the shift controller, and the third state information represents that the parking gear is switched to the forward gear (D gear) or the R gear. On this basis, the shift controller can send a shift request to the vehicle controller, and the shift request is used to request to switch to the forward gear (D gear) or the reverse gear (R gear). After receiving the shift request from the shift controller, the vehicle controller will shift gears and send a gear switching message to the ESC. If the ESC determines based on the gear switching message that the parking gear has been switched to the forward gear (D gear) or the reverse gear (R gear), it will control the release of the electronic handbrake, that is, it is compatible with the solution of automatically releasing the electronic handbrake when switching to the forward gear (D gear) or the reverse gear (R gear).

[0124] See also Figure 5Based on the same inventive concept, an embodiment of the present application provides a control device for an electronic handbrake, the device comprising:

[0125] The detection unit 501 is used to determine that the first precondition for entering the parking state is met and a pressing operation on the parking gear button is detected;

[0126] The sending unit 502 is used to send first state information indicating that the parking gear button is not pressed to the shift controller if it is determined that the pressing time of the pressing operation is not less than the first set threshold, and the first state information is used to control the shift controller to prohibit sending the parking gear switching request to the vehicle controller;

[0127] The control unit 503 is used to control the electronic parking brake to perform an activation operation.

[0128] Optionally, the first precondition includes: the vehicle power is in the ON gear, the vehicle speed is not greater than the second set threshold, the electronic handbrake is in the released state, the brake pedal travel is not less than the third set threshold, and the vehicle is in the target gear, which is forward gear, reverse gear or neutral gear.

[0129] Optionally, the detection unit 501 is further used for:

[0130] If the second precondition for entering the braking state is met and a pressing operation on the parking gear button is detected;

[0131] The sending unit 502 is further configured to:

[0132] If it is determined that the pressing time of the pressing operation is not less than the first set threshold, first state information indicating that the parking gear button is not pressed is sent to the shift controller, and the first state information is used to control the shift controller to prohibit sending the parking gear switching request to the vehicle controller;

[0133] The control unit 503 is further configured to:

[0134] Control the electronic parking brake to perform the activation operation.

[0135] Optionally, the second precondition includes: the vehicle power is in the ON gear, the vehicle speed is greater than a second set threshold, the electronic handbrake is in the released state, and the vehicle is in the target gear, which is the forward gear, reverse gear or neutral gear.

[0136] Optionally, the detection unit 501 is further used for:

[0137] If it is determined that the third precondition for exiting the parking state is satisfied, and a pressing operation on the parking gear button is detected;

[0138] The sending unit 502 is further configured to:

[0139] If it is determined that the pressing time of the pressing operation is not less than the first set threshold, sending first state information indicating that the parking gear button is not pressed to the shift controller;

[0140] The control unit 503 is further configured to:

[0141] Control the electronic parking brake to release the brake.

[0142] Optionally, the third precondition includes: the vehicle power is in the ON gear, the vehicle speed is not greater than the second set threshold, the brake pedal travel is not less than the third set threshold, the electronic handbrake is enabled, and the vehicle is in the target gear, which is forward gear, reverse gear or neutral gear.

[0143] Optionally, the detection unit 501 is further used for:

[0144] If it is determined that the first precondition for entering the parking state is met, and a pressing operation on the parking gear button is detected;

[0145] The sending unit 502 is further configured to:

[0146] If it is determined that the pressing time of the pressing operation is less than the first set threshold, second state information indicating that the parking gear button is pressed is sent to the shift controller, and the second state information is used to control the shift controller to send a parking gear switching request to the vehicle controller;

[0147] The device also includes:

[0148] A receiving unit, used for receiving a gear shift message from a vehicle controller;

[0149] The control unit 503 is further configured to:

[0150] If it is determined that the gear shift message indicates that the vehicle is currently shifted to the parking gear, the electronic parking brake is controlled to perform an activation operation.

[0151] See also Figure 6 Based on the same inventive concept, the embodiment of the present application further provides an electronic stability control system 60, the electronic stability control system 60 includes at least one processor 601, the processor 601 is used to execute the computer program stored in the memory, and implement the embodiment of the present application as provided in the following Figure 1-4 The flowchart diagram steps of the electronic handbrake control method shown.

[0152] Optionally, the processor 601 may specifically be a central processing unit, a specific ASIC, or one or more integrated circuits for controlling program execution.

[0153] Optionally, the electronic stability control system 60 may further include a memory 602 connected to the at least one processor 601, and the memory 602 may include a ROM, a RAM, and a disk memory. The memory 602 is used to store data required by the processor 601 when it is running, that is, it stores instructions that can be executed by the at least one processor 601. The at least one processor 601 executes the instructions stored in the memory 602 to execute the following steps: Figure 1-4 The method shown. Wherein, the number of memories 602 is one or more. Wherein, the number of memories 602 is one or more.

[0154] See also Figure 7 Based on the same inventive concept, the embodiment of the present application provides a vehicle, which includes Figure 6 As shown in the electronic stability control system 60, the vehicle may be a pure electric vehicle, a plug-in hybrid vehicle, or an extended-range vehicle, and the present application does not impose any particular limitation on this.

[0155] The present application also provides a computer storage medium, wherein the computer storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer executes Figure 1-4 method.

[0156] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.

Claims

1. A method for controlling an electronic handbrake, characterized in that: The method comprises: If it is determined that the first precondition for entering the parking state is met, and a pressing operation on the parking gear button is detected; If it is determined that the pressing time of the pressing operation is not less than a first set threshold, first state information indicating that the parking gear button is not pressed is sent to the shift controller, and the first state information is used to control the shift controller to prohibit sending a parking gear switching request to the vehicle controller; The electronic parking brake is controlled to perform an enabling operation.

2. The method according to claim 1, characterized in that The first precondition includes: the vehicle power is in the ON gear, the vehicle speed is not greater than the second set threshold, the electronic handbrake is in the released state, the brake pedal stroke is not less than the third set threshold, and the vehicle is in the target gear, which is the forward gear, reverse gear or neutral gear.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: If the second precondition for entering the braking state is met and a pressing operation on the parking gear button is detected; If it is determined that the pressing time of the pressing operation is not less than a first set threshold, first state information indicating that the parking gear button is not pressed is sent to the shift controller, and the first state information is used to control the shift controller to prohibit sending a parking gear switching request to the vehicle controller; Control the electronic parking brake to perform an enabling operation.

4. The method according to claim 3, characterized in that The second precondition includes: the vehicle power is in the ON gear, the vehicle speed is greater than a second set threshold, the electronic handbrake is in a released state, and the vehicle is in a target gear, which is a forward gear, a reverse gear, or a neutral gear.

5. The method according to any one of claims 1 or 2, characterized in that: The method further comprises: If it is determined that the third precondition for exiting the parking state is satisfied, and a pressing operation on the parking gear button is detected; If it is determined that the pressing time of the pressing operation is not less than the first set threshold, sending the first state information indicating that the parking gear button is not pressed to the shift controller; Control the electronic handbrake to perform a release operation.

6. The method according to claim 5, characterized in that The third precondition includes: the vehicle power is in the ON gear, the vehicle speed is not greater than the second set threshold, the brake pedal stroke is not less than the third set threshold, the electronic handbrake is in the enabled state, and the vehicle is in the target gear, which is forward gear, reverse gear or neutral gear.

7. The method according to claim 1 or 2, characterized in that: The method further comprises: If it is determined that the first precondition for entering the parking state is met, and a pressing operation on the parking gear button is detected; If it is determined that the pressing time of the pressing operation is less than the first set threshold, second state information indicating that the parking gear button is pressed is sent to the shift controller, and the second state information is used to control the shift controller to send a parking gear switching request to the vehicle controller; Receiving a gear shift message from the vehicle controller; If it is determined that the gear shift message indicates that the vehicle is currently shifted to the parking gear, the electronic parking brake is controlled to perform an activation operation.

8. A control device for an electronic handbrake, characterized in that: The device comprises: A detection unit, configured to, if it is determined that a first precondition for entering a parking state is satisfied and a pressing operation on a parking gear button is detected; a sending unit, configured to send first state information indicating that the parking gear button is not pressed to the shift controller if it is determined that the pressing time of the pressing operation is not less than a first set threshold, wherein the first state information is used to control the shift controller to prohibit sending a parking gear switching request to the vehicle controller; A control unit is used to control the electronic handbrake to perform an enabling operation.

9. An electronic stability control system, characterized in that: The electronic stability control system comprises a memory for storing computer program instructions and a processor for executing the program instructions, wherein when the computer program instructions are executed by the processor, the electronic stability control system is triggered to execute the steps of the method according to any one of claims 1 to 7.

10. A vehicle, characterized in that: The vehicle includes the electronic stability control system of claim 9.

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