Vehicle and temporary parking control method and device thereof

Abstract

The present invention provides a vehicle and a temporary parking control method and device thereof, which relate to the technical field of heavy trucks. The vehicle is equipped with a valve body assembly, which is connected to the air tank of the vehicle and is installed with the brake system of the vehicle to form the vehicle brake system of the vehicle; the temporary parking command of the vehicle is received through the vehicle controller, and the temporary parking function of the vehicle is started; when the running state represents that the vehicle is in a parking state, the valve body assembly and the brake system are controlled to be connected to control the temporary parking of the vehicle; when the running state represents that the vehicle is in a driving state, the valve body assembly and the brake system are controlled to be disconnected to control the driving of the vehicle. Based on this, when the vehicle meets the temporary parking conditions, the air circuit of the foot brake controller can be withdrawn, so as to achieve the purpose of liberating the driver's feet and saving the air source of the whole vehicle. Moreover, the present invention does not change the original air circuit braking principle of the platform, and retains the traditional mechanical hand brake, which can be used for auxiliary braking of trailers in special emergency braking scenarios.

Description

Technical Field

[0001] The present invention relates to the technical field of heavy trucks, and in particular to a vehicle and a temporary parking control method and device thereof. Background Art

[0002] At present, the new energy tractors in the industry have increasingly higher requirements for braking performance. At the same time, for different braking scenarios, more and more OEMs are installing various auxiliary braking equipment, such as AEBS (Advanced Emergency Braking System), emergency brake assist system, EPB, etc.

[0003] It is understood that the industry's air brake systems for new energy commercial vehicles equipped with automatic parking are mainly divided into two categories: ① Without automatic parking function - in this case, when the driver needs to park temporarily, he needs to keep the foot brake pedal pressed or the vehicle brakes to stop and then pull up the mechanical handbrake to park the vehicle. The former can easily cause the driver to feel foot fatigue, and the latter requires the release of air in the vehicle's driving and parking air chambers, increasing the vehicle's air source consumption, and thus increasing the vehicle's energy consumption. ② Equipped with automatic parking function - Common new energy commercial vehicles equipped with automatic parking functions on the market often achieve temporary parking of the vehicle by adding an EPB control module in conjunction with an EPB switch. This solution often cannot retain the mechanical handbrake and cannot meet the application scenario of trailer emergency braking. At the same time, the cost of the entire system is relatively high.

[0004] In summary, how to implement AUTOHOLD efficiently and at low cost is worthy of deep consideration by brake and electrical engineers. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a vehicle and a temporary parking control method and device thereof, which can meet the application scenario of a pneumatic brake commercial vehicle that needs to be temporarily parked. The driver can operate the temporary parking function in the cab, thereby achieving the purpose of facilitating the driver's operation, saving the vehicle's air source, reducing the vehicle's cost and improving the vehicle's energy utilization rate.

[0006] In a first aspect, an embodiment of the present invention provides a vehicle, wherein the vehicle is equipped with a valve body assembly, the valve body assembly is connected to an air reservoir of the vehicle, and the valve body assembly is installed in parallel with a brake system of the vehicle to constitute a vehicle brake system of the vehicle; wherein the valve body assembly includes a first signal connection end, a second signal connection end, and a cavity structure arranged between the first signal connection end and the second signal connection end, the first signal connection end is connected to a first signal output pin of a vehicle controller of the vehicle, and the second signal connection end is connected to a second signal output pin of the vehicle controller; the cavity structure is installed in parallel with the brake system; the valve body assembly and the brake system both communicate with the vehicle controller of the vehicle; the vehicle controller is used to start the temporary parking function of the vehicle and obtain the operating status of the vehicle when receiving a temporary parking command of the vehicle; when the operating status indicates that the vehicle is in a parking state, the valve body assembly and the brake system are controlled to be connected so that the air reservoir is connected to the brake system, thereby controlling the temporary parking of the vehicle; and when the operating state indicates that the vehicle is in a driving state, the valve body assembly and the brake system are controlled to be disconnected to control the driving of the vehicle.

[0007] In combination with the first aspect, an embodiment of the present invention also provides a first implementation manner of the first aspect, wherein the cavity structure is configured with an air inlet, an air outlet and an exhaust port; the air inlet and the exhaust port are arranged along the axis of the cavity structure, and the air inlet and the air outlet are arranged along the radial direction of the cavity structure; the air outlet is used to connect with the vehicle's brake system, the air inlet is used to connect with the vehicle's air tank, and the exhaust port is used to connect with the air.

[0008] In combination with the first aspect, an embodiment of the present invention also provides a second implementation of the first aspect, wherein the vehicle also includes a temporary parking switch, which is connected to the vehicle controller; the temporary parking switch is used to respond to touch operations, generate a level signal based on the touch operations, and send it to the vehicle controller; the vehicle controller is used to generate a temporary parking instruction when the level signal is detected.

[0009] In combination with the first aspect, an embodiment of the present invention also provides a third implementation of the first aspect, wherein the vehicle also includes an indicator light matching the temporary parking switch; the temporary parking switch is also used to output a level signal to the indicator light to light up the indicator light to indicate the triggering state of the temporary parking switch.

[0010] In combination with the first aspect, an embodiment of the present invention also provides a fourth implementation of the first aspect, wherein the temporary parking switch includes a switch control and a gear circuit connected to the switch control; the switch control is used to respond to touch operations and switch the gear of the gear circuit; and the vehicle controller is used to identify the level signal generated under the gear position when the switch control is touched.

[0011] In combination with the first aspect, the embodiment of the present invention also provides a fifth implementation of the first aspect, wherein the step of the vehicle controller controlling the conduction between the valve body assembly and the brake system comprises: the vehicle controller outputting a first level signal to the first signal connection terminal to connect the air inlet and the air outlet, thereby connecting the valve body assembly and the brake system; the step of the vehicle controller controlling the connection and disconnection between the valve body assembly and the brake system comprises: the vehicle controller outputting a second level signal to the second signal connection terminal to connect the air outlet and the exhaust port, thereby disconnecting the brake system from the valve body assembly.

[0012] In combination with the first aspect, an embodiment of the present invention also provides a sixth implementation of the first aspect, wherein the vehicle controller is also used to output a second level signal to the second signal connection terminal when it detects that the temporary parking command is lost, thereby connecting the air outlet and the exhaust port.

[0013] In combination with the first aspect, an embodiment of the present invention also provides a seventh implementation of the first aspect, wherein the vehicle controller is connected to the brake pedal of the vehicle, and is used to trigger a timing operation when a braking signal from the brake pedal is received, and after the timing ends, if the vehicle speed is lower than a preset threshold, it is determined that the vehicle's operating state is a parking state.

[0014] In combination with the first aspect, an embodiment of the present invention also provides an eighth implementation of the first aspect, wherein the vehicle controller is connected to the accelerator pedal of the vehicle, and is used to determine that the operating state of the vehicle is a driving state when the accelerator pedal is triggered.

[0015] In combination with the first aspect, an embodiment of the present invention also provides a ninth implementation of the first aspect, wherein the vehicle controller is also used to turn off the temporary parking function of the vehicle when receiving a hand brake signal from a mechanical hand brake.

[0016] In combination with the first aspect, an embodiment of the present invention also provides a tenth implementation of the first aspect, wherein the vehicle controller is also used to restore the temporary parking function of the vehicle when receiving a secondary release signal of the mechanical handbrake.

[0017] In combination with the first aspect, an embodiment of the present invention also provides an eleventh implementation manner of the first aspect, wherein the vehicle controller is also used to monitor the power-off of the vehicle, and when a power-off signal of the vehicle is detected, the control valve body assembly and the brake system are disconnected.

[0018] In combination with the first aspect, an embodiment of the present invention also provides a twelfth implementation of the first aspect, wherein the first signal connection end of the valve body assembly is connected to the first signal output pin of the vehicle controller through a first low-voltage connector; the second signal connection end of the valve body assembly is connected to the second signal output pin of the vehicle controller through a second low-voltage connector.

[0019] In a second aspect, an embodiment of the present invention provides a temporary parking control method for a vehicle, the method being applied to a vehicle, the vehicle being equipped with a valve body assembly, the valve body assembly being connected to an air reservoir of the vehicle, and the valve body assembly being installed in conjunction with a brake system of the vehicle to constitute a vehicle brake system of the vehicle; the method comprising: upon receiving a temporary parking command of the vehicle, starting a temporary parking function of the vehicle and obtaining an operating status of the vehicle; when the operating status indicates that the vehicle is in a parking state, controlling the valve body assembly and the brake system to be connected so that the air reservoir is connected to the brake system, thereby controlling the temporary parking of the vehicle; and when the operating status indicates that the vehicle is in a driving state, controlling the connection between the valve body assembly and the brake system to control the driving of the vehicle.

[0020] In a third aspect, an embodiment of the present invention further provides a temporary parking control device for a vehicle, wherein the device comprises: a response module, for starting the temporary parking function of the vehicle and obtaining the operating status of the vehicle when receiving a temporary parking command of the vehicle; an execution module, for controlling the valve body assembly and the brake system to be connected when the operating status indicates that the vehicle is in a parking state, so as to connect the air cylinder to the brake system, thereby controlling the temporary parking of the vehicle; and, for controlling the valve body assembly and the brake system to be connected and disconnected when the operating status indicates that the vehicle is in a driving state, so as to control the driving of the vehicle.

[0021] The embodiments of the present invention bring the following beneficial effects: The present invention provides a vehicle and a temporary parking control method and device thereof, by incorporating the valve body assembly into the service brake air circuit, when the VCU determines that the vehicle has the temporary parking conditions, the air circuit of the foot brake controller can be withdrawn, thereby freeing the driver's feet and saving the air source of the entire vehicle, thereby reducing the energy consumption of the entire vehicle. In addition, the embodiments of the present invention do not change the original air circuit braking principle of the platform, and the vehicle retains the traditional mechanical handbrake, which can be used for auxiliary braking of trailers in special emergency braking scenarios.

[0022] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a vehicle provided by an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the structure of another vehicle provided by an embodiment of the present invention;

[0027] Figure 3 A schematic structural diagram of a valve body assembly provided by an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the gear positions corresponding to a temporary parking switch provided in an embodiment of the present invention;

[0029] Figure 5 A flow chart of a temporary parking control method for a vehicle provided by an embodiment of the present invention is shown;

[0030] Figure 6 A schematic structural diagram of a temporary parking control device for a vehicle provided in an embodiment of the present invention is shown.

[0031] In the figure, 10-vehicle controller; 11-brake system; 12-air reservoir; 20-valve body assembly; 21-second signal connection end; 211-second low-voltage connector; 22-first signal connection end; 221-first low-voltage connector; 30-temporary parking switch. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the following embodiments of the present disclosure are described by specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0033] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described in the present invention may be embodied in a wide variety of forms, and any specific structure and / or function described in the present invention is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described in the present invention may be implemented independently of any other aspect, and two or more of these aspects may be combined in various ways. For example, any number of aspects described in the present invention may be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described in the present invention may be used to implement this device and / or practice this method.

[0034] It should also be noted that the diagrams provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure, and the diagrams only show the components related to the present disclosure rather than the number, shape and size of the components in actual implementation. The type, quantity and proportion of each component in actual implementation can be changed at will, and the component layout type may also be more complicated. In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that aspects can be practiced without these specific details.

[0035] A vehicle and a temporary parking control method and device thereof provided in an embodiment of the present invention can meet the application scenario where a pneumatic brake commercial vehicle needs to be temporarily parked. The driver can operate the temporary parking function in the cab, thereby achieving the purpose of facilitating the driver's operation, saving the vehicle's air source, reducing the vehicle's cost and improving the vehicle's energy utilization rate.

[0036] To facilitate understanding of this embodiment, a vehicle disclosed in an embodiment of the present invention is first introduced in detail. Figure 1 A schematic diagram of the structure of a vehicle provided by an embodiment of the present invention is shown, referring to Figure 1 The vehicle is equipped with a valve body assembly 20, which is connected to the air reservoir of the vehicle, and the valve body assembly 20 is installed together with the brake system 11 of the vehicle to constitute the vehicle brake system of the vehicle.

[0037] In a specific implementation, the valve body assembly 20 includes a first signal connection terminal 22, a second signal connection terminal 21, and a cavity structure disposed between the first signal connection terminal 22 and the second signal connection terminal 21. The cavity structure is installed in parallel with the brake system 11; the first signal connection terminal 22 is connected to the first signal output pin of the vehicle controller 10 of the vehicle, and the second signal connection terminal 21 is connected to the second signal output pin of the vehicle controller 10. The valve body assembly 20 and the brake system 11 both communicate with the vehicle controller 10 of the vehicle.

[0038] The vehicle controller 10 is used to start the temporary parking function of the vehicle and obtain the operating status of the vehicle when receiving the temporary parking command of the vehicle; when the operating status indicates that the vehicle is in a parking state, the control valve body assembly 20 and the brake system 11 are connected to connect the air tank with the brake system, thereby controlling the temporary parking of the vehicle; and when the operating status indicates that the vehicle is in a driving state, the control valve body assembly 20 and the brake system 11 are connected and disconnected to control the driving of the vehicle.

[0039] In a specific implementation, the brake system may be a rear axle brake air chamber of a vehicle. Under the control of a vehicle controller, the gas in the air reservoir enters the brake system through the valve body assembly to achieve temporary parking.

[0040] Specifically, a temporary parking instruction can be given to the vehicle, thereby turning on the temporary parking function of the vehicle. Furthermore, by obtaining the running status of the vehicle, it can be determined whether the vehicle needs to be temporarily parked, and when temporary parking is required, the valve body assembly 20 and the brake system 11 are controlled to be connected through the vehicle controller 10 to control the temporary parking of the vehicle. Furthermore, when it is detected that the vehicle needs to drive, the valve body assembly 20 and the brake system 11 are controlled to be connected and disconnected, thereby controlling the vehicle to drive.

[0041] A vehicle provided by an embodiment of the present invention is provided with a valve body assembly, and the valve body assembly is installed in conjunction with the vehicle's brake system to form a vehicle brake system. The connection or on-off of the valve body assembly and the brake system can be controlled based on the vehicle's operating status to activate or shut down the temporary parking function. By incorporating the valve body assembly into the service brake air circuit, when the VCU determines that the vehicle meets the temporary parking conditions, the air circuit of the foot brake controller can be withdrawn, thereby freeing the driver's feet while saving the air source of the entire vehicle, thereby reducing the energy consumption of the entire vehicle. In addition, the embodiment of the present invention does not change the original air circuit braking principle of the platform, and the vehicle retains the traditional mechanical handbrake, which can be used for auxiliary braking of trailers in special emergency braking scenarios.

[0042] For ease of understanding, based on the above embodiment, the embodiment of the present invention also provides another vehicle, Figure 2 A schematic diagram of another vehicle structure provided by an embodiment of the present invention is shown, referring to Figure 2 The cavity structure of the valve body assembly 20 of the embodiment of the present invention is configured with an air inlet, an air outlet and an exhaust port; the air inlet and the exhaust port are arranged along the axis of the cavity structure, and the air inlet and the air outlet are arranged along the radial direction of the cavity structure; the air outlet is used to communicate with the vehicle's brake system 11, the air inlet is used to communicate with the vehicle's air tank, and the exhaust port is used to communicate with the air.

[0043] The vehicle controller 10 outputs a first level signal to the first signal connection terminal 22 to connect the air inlet and the air outlet, thereby connecting the valve body assembly 20 and the brake system 11. In addition, the vehicle controller 10 outputs a second level signal to the second signal connection terminal 21 to connect the air outlet and the exhaust port, thereby disconnecting the brake system 11 from the valve body assembly.

[0044] Specifically, the vehicle controller 10 is a VCU, which can determine the driver's driving intention by collecting signals from the accelerator pedal, gear position, brake pedal, etc. Specifically, the VCU has multiple signal output pins, and the valve body assembly 20 includes a first signal connection terminal 22 and a second signal connection terminal 21. The signal output pin of the VCU sends a signal to the corresponding signal connection terminal of the valve body assembly 20, thereby controlling the conduction or disconnection of the valve body assembly 20 and the brake system 11.

[0045] In one embodiment, the present invention is implemented by installing a solenoid valve on the original foot brake pipeline of the chassis, and the solenoid valve is used as the valve body assembly 20. The solenoid valve uses the electromagnetic principle to control the valve body of the fluid system, and is mainly composed of a coil, a valve core and a valve body. After the coil is energized, the magnetic force acts on the valve core and moves. Under the interaction of the electromagnetic force and the spring force, the relative position of the valve core and the valve body changes, thereby changing the flow direction of the fluid in the valve body. Figure 3 FIG. 2 shows a schematic diagram of the structure of a valve body assembly 20 provided in an embodiment of the present invention. Figure 3 In the figure, 1 is the air inlet, 2 is the air outlet, and 3 is the exhaust port. The right side of the valve body assembly 20 is the first signal connection terminal 22, which serves as the parking signal terminal of the valve body assembly 20; the left side is the second signal connection terminal 21, which serves as the driving signal terminal of the valve body assembly 20.

[0046] Among them, under the premise of starting the temporary parking function, when the running state of the vehicle is detected to be the parking state, the temporary parking function is activated. At this time, the first signal output pin of the VCU (such as pin 19) outputs a high level for 3 seconds, which is transmitted to the chassis solenoid valve through a hard line, and the parking end of the solenoid valve (i.e., the first signal connection end 22) is energized. At this time, the No. 1 port and the No. 2 port of the solenoid valve are connected, and the gas in the air tank enters the brake system 11, and the whole vehicle is parked.

[0047] Furthermore, when it is detected that the vehicle is driving, the second signal output pin of the VCU (such as pin 37) outputs a high level for 3 seconds, which is transmitted to the chassis solenoid valve through a hard wire. The driving end of the solenoid valve (that is, the second signal connection end 21) is energized. At this time, ports 2 and 3 of the solenoid valve are connected, and the gas in the brake system 11 is discharged into the atmosphere, exiting the temporary parking function, and the entire vehicle can drive.

[0048] The vehicle controller 10 is connected to the brake pedal of the vehicle, and is used to trigger the timing operation when receiving the brake signal from the brake pedal, and after the timing ends, if the vehicle speed is lower than the preset threshold, the vehicle's running state is determined to be a parking state. Specifically, in one embodiment, after the driver has driven the vehicle for a period of time, a red traffic light appears in front, and the driver steps on the foot brake pedal. At this time, the vehicle begins to slow down, and the brake signal is transmitted to the VCU through the pedal hard line; the vehicle continues to slide until it stops in front of the zebra crossing. At this time, the vehicle speed is zero, and this state is maintained for more than 3s. The VCU detects the current state of the vehicle and activates the temporary parking function.

[0049] In addition, the vehicle controller 10 is also connected to the accelerator pedal of the vehicle, and is used to determine that the vehicle's operating state is the driving state when the accelerator pedal is triggered. Specifically, when the traffic light turns green and the driver steps on the accelerator, the vehicle is ready to start, and the accelerator signal is transmitted to the VCU through the pedal hard line; the VCU detects the current state of the vehicle and exits the temporary parking function.

[0050] The vehicle also includes a temporary parking switch, which is connected to the vehicle controller 10. The temporary parking switch is an AUTOHOLD switch, and its initial state is a state in which the AUTOHOLD function is not started. Correspondingly, the air outlet and the exhaust port are connected. The temporary parking switch can be controlled by the driver to start the temporary parking function of the vehicle. In one embodiment, an AUTOHOLD rocker switch can be installed in the cab, which is used for the vehicle controller 10 to determine whether the vehicle needs to turn on the AUTOHOLD function (that is, the temporary parking function), and provide the driver with the choice of whether to turn on this function. The temporary parking switch is used to respond to touch operations, generate a level signal based on the touch operation, and send it to the vehicle controller 10; the vehicle controller 10 is used to generate a temporary parking instruction when the level signal is detected.

[0051] Specifically, the temporary parking switch includes a switch control and a gear circuit connected to the switch control; the switch control is used to respond to touch operations and switch the gear of the gear circuit; the vehicle controller 10 is used to identify the gear position when the switch control is touched, and then generate a corresponding level signal. Figure 4 The schematic diagram of the gear position corresponding to the temporary parking switch is shown. Figure 4 In the embodiment, when the switch control is touched, pins 1 and 5 in the gear circuit are connected, and the vehicle controller 10 detects that pin 1 is at a high level and obtains a level signal. When the temporary parking function is turned off, pins 5 and 7 are connected.

[0052] After the AUTOHOLD switch is pressed, the vehicle turns on the AUTOHOLD function. After the driver performs a series of operations, the vehicle controller 10 (VCU) determines the current state of the vehicle, and combines the posture of the vehicle to control the power supply pin of the vehicle controller 10 in different states (driving or braking) through high-level output or cut-off, and hard-wire control controls the power on and off of the solenoid valve on the chassis, thereby realizing electric control of gas, and then achieving the purpose of driving or temporary parking.

[0053] Specifically, the vehicle further includes an indicator light matched with the temporary parking switch; the temporary parking switch is further used to output a level signal to the indicator light, so as to light up the indicator light to indicate the triggering state of the temporary parking switch.

[0054] Furthermore, the vehicle controller 10 can be connected to the temporary parking switch via pin 61. The vehicle controller 10 is also used to output a second level signal to the second signal connection terminal 21 when it detects that the temporary parking command signal is lost, thereby connecting the air outlet and the exhaust port. When the driver turns off the AUTOHOLD rocker switch in the cab and the VCU detects that the high level of pin 61 is lost, the VCU controls the vehicle to exit the temporary parking mode. Correspondingly, pin 37 of the VCU (that is, the second signal output pin) is controlled to output a high level for 3s to ensure that the solenoid valve is in the initial state, after which the VCU no longer performs related signal detection for AUTOHOLD.

[0055] Furthermore, the embodiment of the present invention also connects the valve body assembly 20 to the VCU through a low-voltage wiring harness. Specifically, the first signal connection terminal 22 of the valve body assembly 20 is connected to the first signal output pin of the vehicle controller 10 through the first low-voltage connector 221; the second signal connection terminal 21 of the valve body assembly 20 is connected to the second signal output pin of the vehicle controller 10 through the second low-voltage connector 211. Among them, the second signal connection terminal 21 (also known as the driving end) is connected to the connector of the vehicle low-voltage wiring harness AMP282080-1 through the low-voltage connector AMP282104-1; the first signal connection terminal 22 (also known as the parking end) is connected to the connector of the vehicle low-voltage wiring harness AMP282104-1 through the low-voltage connector AMP282080-1.

[0056] It should be noted that the vehicle controller 10 is also used to turn off the temporary parking function of the vehicle when receiving the hand brake signal of the mechanical hand brake. When receiving the second release signal of the mechanical hand brake, the temporary parking function of the vehicle is restored. Specifically, when the driver triggers the hand brake signal and this signal is transmitted to the VCU through a hard line, no matter what state the AUTOHOLD switch is in (that is, whether the 61st pin of the VCU detects a high level), the temporary parking function will not take effect; at the same time, the second signal output pin of the VCU outputs a high level for 3s to ensure that the solenoid valve is in the initial state. Further, when the driver releases the hand brake signal for the second time and this signal is transmitted to the VCU through a hard line, that is, when the vehicle has no hand brake signal at this time, and the AUOHOLD switch is in the on state, that is, when the 61st pin of the VCU detects a high level, the VCU controls the vehicle to enter the temporary parking mode again.

[0057] Furthermore, the vehicle controller 10 is also used to monitor the vehicle power-off, and when the vehicle power-off signal is detected, the control valve body assembly and the brake system 11 are disconnected. When the driver powers off the vehicle, no matter what state the AUTOHOLD switch is in (i.e., whether the pin 61 of the VCU detects a high level), the temporary parking function will not take effect; at this time, the pin 37 of the VCU (i.e., the second signal output pin) also needs to output a high level for 3 seconds to ensure that the solenoid valve is in the initial state.

[0058] Another vehicle provided by an embodiment of the present invention realizes the opening and closing of the temporary parking function by adding a temporary parking switch, and adds a valve body assembly, which greatly reduces the cost of the whole vehicle compared to the mainstream vehicle equipped with an EPB control module and an EPB switch. In addition, the vehicle also includes an indicator light that matches the temporary parking switch. When the temporary parking function is turned on, the indicator light is on, which has a good prompting effect. In addition, the vehicle controller outputs a level signal to the corresponding signal connection end of the valve body assembly, thereby realizing the activation and shutdown of the temporary parking function, which can not only improve the temporary parking function of the air brake system of new energy commercial vehicles. The driver does not need to use the hand brake to realize the temporary parking function. At the same time, this set of solutions has a low cost, and the wiring and principle of the electrical part are also relatively simple. At the same time, when the driver implements the temporary parking after stepping on the brake, the valve body assembly will not discharge the air source of the foot brake into the atmosphere, which can save the air source of the whole vehicle to a certain extent, thereby reducing the working time of the air pump and reducing the energy consumption of the whole vehicle.

[0059] Further, based on the above embodiment, an embodiment of the present invention also provides a temporary parking control method for a vehicle, the method is applied to a vehicle, the vehicle is equipped with a valve body assembly, the valve body assembly is connected to the air reservoir of the vehicle, and the valve body assembly is installed in conjunction with the brake system of the vehicle to constitute a vehicle brake system of the vehicle; Figure 5A flow chart of a temporary parking control method for a vehicle provided by an embodiment of the present invention is shown. Figure 5 As shown, the method comprises the following steps:

[0060] Step S102, when receiving a temporary parking instruction of the vehicle, starting the temporary parking function of the vehicle and obtaining the running status of the vehicle;

[0061] Step S104, when the running state indicates that the vehicle is in a parking state, the control valve body assembly and the brake system are connected so that the air reservoir is connected to the brake system, thereby controlling the temporary parking of the vehicle; and,

[0062] When the operating state indicates that the vehicle is in a driving state, the control valve body assembly and the brake system are connected and disconnected to control the driving of the vehicle.

[0063] A temporary parking control method for a vehicle provided in an embodiment of the present invention has the same technical features as a vehicle provided in the above embodiment, and therefore can also solve the same technical problems and achieve the same technical effects.

[0064] Furthermore, based on the above embodiment, the embodiment of the present invention also provides a temporary parking control device for a vehicle. Figure 6 FIG. 1 shows a schematic structural diagram of a temporary parking control device for a vehicle provided by an embodiment of the present invention, such as Figure 6 As shown, the device includes: a response module 100, which is used to start the temporary parking function of the vehicle and obtain the operating status of the vehicle when receiving the temporary parking command of the vehicle; an execution module 200, which is used to control the valve body assembly and the brake system to be connected when the operating status indicates that the vehicle is in a parking state, so that the air tank is connected to the brake system, thereby controlling the temporary parking of the vehicle; and when the operating status indicates that the vehicle is in a driving state, the control valve body assembly and the brake system are connected and disconnected to control the driving of the vehicle.

[0065] A temporary parking control device for a vehicle provided in an embodiment of the present invention has the same technical features as a vehicle provided in the above embodiment, and therefore can also solve the same technical problems and achieve the same technical effects.

[0066] A computer program product for a vehicle and a temporary parking control method and device thereof provided in an embodiment of the present invention includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the method described in the previous method embodiment. The specific implementation can be found in the method embodiment and will not be repeated here.

[0067] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working process of the system described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for 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 methods described in each embodiment of the present invention. 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, etc., which can store program codes.

[0069] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0070] Finally, it should be noted that the above embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A vehicle, characterized in that: The vehicle is provided with a valve body assembly, the valve body assembly is communicated with an air reservoir of the vehicle, and the valve body assembly is installed together with a brake system of the vehicle to constitute a vehicle brake system of the vehicle; Wherein, the valve body assembly includes a first signal connection end, a second signal connection end, and a cavity structure arranged between the first signal connection end and the second signal connection end, the first signal connection end is connected to a first signal output pin of a vehicle controller of the vehicle, and the second signal connection end is connected to a second signal output pin of the vehicle controller; the cavity structure is installed in parallel with the brake system; The valve body assembly and the brake system are both in communication with a vehicle controller of the vehicle; The vehicle controller is used to start the temporary parking function of the vehicle and obtain the operating state of the vehicle when receiving the temporary parking instruction of the vehicle; when the operating state indicates that the vehicle is in a parking state, control the valve body assembly and the brake system to be connected so that the air reservoir is connected to the brake system, thereby controlling the temporary parking of the vehicle; and, When the operating state indicates that the vehicle is in a driving state, controlling the valve body assembly and the brake system to be connected or disconnected to control the vehicle to drive; The cavity structure is provided with an air inlet, an air outlet and an exhaust port; the air inlet and the exhaust port are arranged along the axis of the cavity structure, and the air inlet and the air outlet are arranged along the radial direction of the cavity structure; The air outlet is used to communicate with the brake system of the vehicle, the air inlet is used to communicate with the air reservoir of the vehicle, and the exhaust port is used to communicate with the air; The step of the vehicle controller controlling the valve body assembly and the brake system to be connected comprises: The vehicle controller outputs a first level signal to the first signal connection end, so that the air inlet and the air outlet are connected, thereby connecting the valve body assembly and the brake system; The step of the vehicle controller controlling the connection and disconnection between the valve body assembly and the brake system comprises: The vehicle controller outputs a second level signal to the second signal connection end, so that the air outlet is connected to the exhaust port, thereby disconnecting the brake system from the valve body assembly; The vehicle controller is further configured to output a second level signal to the second signal connection terminal when detecting that a temporary parking command is lost, thereby connecting the air outlet to the exhaust port; The vehicle controller is connected to the brake pedal of the vehicle, and is used to trigger a timing operation when receiving a brake signal from the brake pedal, and after the timing ends, if the speed of the vehicle is lower than a preset threshold, determine that the running state of the vehicle is a parking state; the vehicle controller is connected to the accelerator pedal of the vehicle, and is used to determine that the running state of the vehicle is a driving state when the accelerator pedal is triggered; The vehicle controller is also used to turn off the temporary parking function of the vehicle when receiving a hand brake signal from the mechanical hand brake; the vehicle controller is also used to restore the temporary parking function of the vehicle when receiving a secondary release signal from the mechanical hand brake.

2. The vehicle according to claim 1, characterized in that The vehicle further comprises a temporary parking switch, wherein the temporary parking switch is connected to the vehicle controller; The temporary parking switch is used to respond to a touch operation, generate a level signal based on the touch operation, and send the signal to the vehicle controller; The vehicle controller is used to generate the temporary parking instruction when the level signal is detected.

3. The vehicle according to claim 2, characterized in that The vehicle further comprises an indicator light matching the temporary parking switch; The temporary parking switch is also used to output a level signal to the indicator light, so as to light up the indicator light to indicate the triggering state of the temporary parking switch.

4. The vehicle according to claim 2, characterized in that The temporary parking switch includes a switch control and a gear circuit connected to the switch control; The switch control is used to respond to the touch operation and switch the gear of the gear circuit; The vehicle controller is used to identify the level signal generated in the gear position when the switch control is touched.

5. The vehicle according to claim 1, characterized in that The vehicle controller is also used to monitor the power-off of the vehicle, and when a power-off signal of the vehicle is detected, control the connection and disconnection of the valve body assembly and the brake system.

6. The vehicle according to claim 1, characterized in that The first signal connection end of the valve body assembly is connected to the first signal output pin of the vehicle controller through a first low-voltage connector; The second signal connection end of the valve body assembly is connected to the second signal output pin of the vehicle controller through a second low-voltage connector.

7. A temporary parking control method for a vehicle, characterized in that: The method is applied to a vehicle according to any one of claims 1 to 6, wherein the vehicle is provided with a valve body assembly, the valve body assembly is in communication with an air reservoir of the vehicle, and the valve body assembly is installed in conjunction with a brake system of the vehicle to constitute a vehicle brake system of the vehicle; Wherein, the valve body assembly comprises a first signal connection end, a second signal connection end, and a cavity structure arranged between the first signal connection end and the second signal connection end, the first signal connection end is connected to a first signal output pin of a vehicle controller of the vehicle, and the second signal connection end is connected to a second signal output pin of the vehicle controller; the cavity structure is installed in parallel with the brake system; the valve body assembly and the brake system both communicate with the vehicle controller of the vehicle; The cavity structure is provided with an air inlet, an air outlet and an exhaust port; the air inlet and the exhaust port are arranged along the axis of the cavity structure, and the air inlet and the air outlet are arranged along the radial direction of the cavity structure; the air outlet is used to communicate with the brake system of the vehicle, the air inlet is used to communicate with the air reservoir of the vehicle, and the exhaust port is used to communicate with the air; The method comprises: When receiving a temporary parking instruction of the vehicle, starting a temporary parking function of the vehicle and acquiring an operating state of the vehicle; When the operating state indicates that the vehicle is in a parking state, controlling the valve body assembly and the brake system to be connected so that the air reservoir is connected to the brake system, thereby controlling temporary parking of the vehicle; and, When the operating state indicates that the vehicle is in a driving state, controlling the valve body assembly and the brake system to be connected or disconnected to control the vehicle to drive; The step of the vehicle controller controlling the valve body assembly and the brake system to be connected comprises: the vehicle controller outputting a first level signal to the first signal connection end to connect the air inlet and the air outlet, thereby connecting the valve body assembly and the brake system; The step of the vehicle controller controlling the connection and disconnection between the valve body assembly and the brake system comprises: the vehicle controller outputting a second level signal to the second signal connection end so that the air outlet and the exhaust port are connected, thereby disconnecting the brake system from the valve body assembly; Wherein, the vehicle controller is further used to output a second level signal to the second signal connection end when detecting that the temporary parking command is lost, thereby connecting the air outlet and the exhaust port; The vehicle controller is connected to the brake pedal of the vehicle, and is used to trigger a timing operation when receiving a brake signal from the brake pedal, and after the timing ends, if the speed of the vehicle is lower than a preset threshold, determine that the running state of the vehicle is a parking state; the vehicle controller is connected to the accelerator pedal of the vehicle, and is used to determine that the running state of the vehicle is a driving state when the accelerator pedal is triggered; The vehicle controller is also used to turn off the temporary parking function of the vehicle when receiving a hand brake signal from the mechanical hand brake; the vehicle controller is also used to restore the temporary parking function of the vehicle when receiving a secondary release signal from the mechanical hand brake.

8. A temporary parking control device for a vehicle, characterized in that: The device is applied to the vehicle according to any one of claims 1 to 6, wherein the vehicle is provided with a valve body assembly, the valve body assembly is communicated with an air reservoir of the vehicle, and the valve body assembly is installed in conjunction with a brake system of the vehicle to constitute a vehicle brake system of the vehicle; Wherein, the valve body assembly comprises a first signal connection end, a second signal connection end, and a cavity structure arranged between the first signal connection end and the second signal connection end, the first signal connection end is connected to a first signal output pin of a vehicle controller of the vehicle, and the second signal connection end is connected to a second signal output pin of the vehicle controller; the cavity structure is installed in parallel with the brake system; the valve body assembly and the brake system both communicate with the vehicle controller of the vehicle; The cavity structure is provided with an air inlet, an air outlet and an exhaust port; the air inlet and the exhaust port are arranged along the axis of the cavity structure, and the air inlet and the air outlet are arranged along the radial direction of the cavity structure; the air outlet is used to communicate with the brake system of the vehicle, the air inlet is used to communicate with the air reservoir of the vehicle, and the exhaust port is used to communicate with the air; The device comprises: a response module, configured to start the temporary parking function of the vehicle and obtain the operating status of the vehicle when receiving the temporary parking instruction of the vehicle; an execution module, configured to control the valve body assembly and the brake system to be connected when the operating state indicates that the vehicle is in a parking state, so that the air reservoir is connected to the brake system, thereby controlling the temporary parking of the vehicle; and When the operating state indicates that the vehicle is in a driving state, controlling the valve body assembly and the brake system to be connected or disconnected to control the vehicle to drive; The step of the vehicle controller controlling the valve body assembly and the brake system to be connected comprises: the vehicle controller outputting a first level signal to the first signal connection end to connect the air inlet and the air outlet, thereby connecting the valve body assembly and the brake system; The step of the vehicle controller controlling the connection and disconnection between the valve body assembly and the brake system comprises: the vehicle controller outputting a second level signal to the second signal connection end so that the air outlet and the exhaust port are connected, thereby disconnecting the brake system from the valve body assembly; The vehicle controller is further configured to output a second level signal to the second signal connection terminal when detecting that a temporary parking command is lost, thereby connecting the air outlet to the exhaust port; The vehicle controller is connected to the brake pedal of the vehicle, and is used to trigger a timing operation when receiving a brake signal from the brake pedal, and after the timing ends, if the speed of the vehicle is lower than a preset threshold, determine that the running state of the vehicle is a parking state; the vehicle controller is connected to the accelerator pedal of the vehicle, and is used to determine that the running state of the vehicle is a driving state when the accelerator pedal is triggered; The vehicle controller is also used to turn off the temporary parking function of the vehicle when receiving a hand brake signal from the mechanical hand brake; the vehicle controller is also used to restore the temporary parking function of the vehicle when receiving a secondary release signal from the mechanical hand brake.

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