A new energy sanitation vehicle integrated with a central control system having a control function

Abstract

The application discloses a new energy sanitation vehicle integrated with an upper device control function central control system in the field of sanitation vehicles, which comprises a central control screen, the central control screen is connected with an upper device controller through a CAN bus to establish a bidirectional communication connection, and the central control screen is integrated with an upper device control function corresponding to the upper device controller; and a communication protocol between the central control screen and the upper device controller is a standard communication protocol customized to adapt to various upper device controllers. The central control system integrates the upper device control function of the upper device controller on the central control screen, compared with an existing upper device control panel, the structure in the cab is simplified, meanwhile, the use of a connection wire harness is reduced, system interference is reduced, and system stability is improved. The central control system uses various vehicle types of upper device controllers through the standard communication protocol, and has high adaptability.

Description

Technical Field

[0001] This invention relates to the field of sanitation vehicles, and more particularly to a central control system for a new energy sanitation vehicle that integrates the control function of the superstructure. Background Technology

[0002] Modern sanitation vehicles are typically constructed by adding specialized equipment to a standard Class II chassis. Specialized vehicles such as sweepers, compactor trucks, high-pressure cleaners, and water sprinklers all achieve specific sanitation functions by adding corresponding superstructures to mature truck chassis. This production method dictates a common phenomenon in the layout of electronic equipment within the cab: the original vehicle's instrument panel and central control system are physically separated from the superstructure control system. The superstructure control system operates by adding a control panel within the cab.

[0003] like Figure 9 As shown, the upper body control panel is located on the side of the steering wheel. The upper body control panel is usually fixed to a suspended position between the driver and passenger seats and between the instrument panel and the passenger instrument panel by a support rod. It interacts with the upper body controller installed on the outer frame of the cab through physical buttons and a small touch screen to control the operation functions such as sweeping, compression, cleaning and watering.

[0004] This physically separated layout pattern has many inherent flaws: 1. The control panel encroaches on the cab space, affecting driving comfort and safety. 2. Its position is too low and too far back, making it inconvenient for the driver to operate and posing a safety hazard. 3. The electrical connections are complex, with low anti-interference capabilities and a high failure rate. Summary of the Invention

[0005] The purpose of this invention is to provide a central control system for new energy sanitation vehicles that integrates the control function of the superstructure, thereby simplifying the structure of the driver's cab by integrating the superstructure control function into the central control screen.

[0006] To solve the above technical problems, the following technical solution is adopted: This invention provides a central control system for a new energy sanitation vehicle that integrates upper body control functions, including a central control screen. The central control screen establishes a bidirectional communication connection with the upper body controller via a CAN bus, and the central control screen integrates the upper body control functions corresponding to the upper body controller. The communication protocol between the central control screen and the upper body controller is a custom standard communication protocol that is compatible with various upper body controllers.

[0007] The central control screen sends CAN messages carrying control information to the superstructure controller according to the driver's operation, and receives CAN messages containing status and alarm information from the superstructure controller; the CAN messages are generated according to the standard communication protocol.

[0008] Optionally, the superstructure controller includes a sweeper truck superstructure controller, a rear-loading compressor truck superstructure controller, a high-pressure cleaning truck superstructure controller, and a water sprinkler truck superstructure controller. The central control screen is matched with the corresponding superstructure controller according to the vehicle type. The central control screen integrates the superstructure control functions of the above four types of superstructure controllers.

[0009] Optionally, the upper-mounted control function is integrated into the central control screen in the form of a software module.

[0010] Optionally, the software modules on the central control screen include UI interfaces corresponding to sweeper trucks, rear-loading compactor trucks, high-pressure cleaning trucks, and water sprinkler trucks, and the central control screen switches the corresponding UI interface according to the vehicle type.

[0011] Optionally, the CAN message generated according to the standard communication protocol includes: The message identifier is uniformly defined based on vehicle type, message priority, and message type; The message data content is uniformly defined according to the preset data structure mapping.

[0012] Optionally, after the central control screen is operated, the central control screen sends 3 CAN messages carrying control information to the upper-mount controller at a period of 200ms according to the standard communication protocol. When the central control screen is not operated, the central control screen exchanges CAN messages carrying current status information with the upper-mount controller bidirectionally at a period of 500ms. After receiving the CAN message carrying control information, the superstructure controller controls the corresponding actuator to perform the action according to the control information. After the action, the superstructure controller sends a CAN message carrying the current status information of the actuator to the central control screen. The central control screen receives and displays the current status information in the CAN message.

[0013] Optionally, the central control screen includes a unified information display module, which is used to display the status information fed back by the upper-mount controller in a visual form on the central control screen.

[0014] Optionally, the central control screen includes a unified alarm module, which is used to uniformly receive fault codes reported by the upper-mount controller and provide alarm prompts with fixed alarm symbols.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: 1. The central control system provided by this invention integrates the superstructure control functions of the superstructure controller onto the central control screen. Compared with existing superstructure control panels, this simplifies the structure inside the driver's cab, reduces the use of wiring harnesses, minimizes system interference, and improves system stability. Through standard communication protocols, the central control system can use superstructure controllers from various vehicle types, offering high adaptability.

[0016] 2. The central control system provided by this invention uses a standard communication protocol between the central control screen and the upper body controller. According to the vehicle type and a fixed data structure, the message identifier and message data content are mapped and specified, so that the central control screen can be matched with a variety of vehicle models, realize the central control screen to be used immediately after installation, and realize the operation of various functions and the display of content through software modules. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of data exchange between the control screen and the upper-mounted controller in an embodiment of the present invention; Figure 2 This is a schematic diagram of the cab layout according to an embodiment of the present invention; Figure 3 This is a CAN network topology diagram of the central control system of this invention; Figure 4 This is a schematic diagram of the CAN message structure according to an embodiment of the present invention; Figure 5 yes Figure 4 One of the schematic diagrams of a partial structure of a Chinese message; Figure 6 yes Figure 4 Partial structural diagram of a Chinese message (Part 2); Figure 7 This is a schematic diagram of the layout of the vehicle model selection interface on the control screen in an embodiment of the present invention; Figure 8 This is a schematic diagram of the layout of the control interface on the control screen in an embodiment of the present invention; Figure 9 This is a schematic diagram of the existing driver's cab layout in the background art of this invention. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0019] Example 1

[0020] This embodiment provides a central control system for a new energy sanitation vehicle that integrates upper body control functions, including a central control screen. The central control screen establishes a bidirectional communication connection with the upper body controller via a CAN bus, and the central control screen integrates the upper body control functions corresponding to the upper body controller.

[0021] The driver operates the central control screen, which sends corresponding CAN messages carrying control information to the upper-mount controller. After receiving the CAN messages, the upper-mount controller controls the corresponding actuators to operate according to the control information. After the actuators operate, the upper-mount controller sends CAN messages carrying the status information of each actuator to the central control screen. After receiving the CAN messages, the central control screen displays the corresponding status information.

[0022] The CAN message is generated according to a standard communication protocol that is compatible with various upper-mount controllers. The generated CAN message includes a message identifier and message data content. The message identifier is uniformly defined based on vehicle type, message priority, and message type. The message data content is uniformly defined according to a preset data structure mapping. In a CAN message, the message identifier can determine the corresponding vehicle type, message priority, and message type. The message type indicates the type of message data content, i.e., whether the message data content is control information, status information, or alarm information, etc. The message data content includes specific parameters and control logic data corresponding to the type.

[0023] The central control screen uses a standard communication protocol to match the superstructure controllers of various vehicle models. The central control screen connects to the superstructure controllers of different vehicle models, and the CAN messages sent by the central control screen have different message identifiers and message data contents. The message identifier determines the vehicle type, message priority, and message type, while the message data content controls the corresponding mechanism's actions.

[0024] By integrating the superstructure control functions into the central control screen, the driver can easily operate and view the status. Compared to the control buttons on the existing superstructure control panel, this reduces a significant amount of wiring harness, lowers interference and failure rates, and reduces the space occupied by the original superstructure control panel in the cab, improving cab space utilization. The central control screen achieves multi-vehicle adaptation through a standard communication protocol. Upon initial power-on, the vehicle model is determined, and the corresponding message database is matched.

[0025] Example 2

[0026] This embodiment provides a central control system for a new energy sanitation vehicle that integrates superstructure control functions, based on Embodiment 1. The central control screen can be matched with four types of vehicles: sweeper trucks, rear-loading compactor trucks, high-pressure cleaning trucks, and water sprinkler trucks. The superstructure control functions corresponding to their respective superstructure controllers are integrated on the central control screen through the "Smart Sanitation" APP. The APP integrates the UI interface of the corresponding vehicle model. After the driver selects the vehicle model and enters the UI interface of the corresponding vehicle model, he can control the superstructure functions by operating the virtual buttons.

[0027] The driver starts the vehicle, the central control screen powers on and initializes, and displays the main interface. Clicking the "Smart Sanitation" APP will take you to the upper structure operation interface, where you can choose from four vehicle types: sweeper truck, rear-loading compactor truck, high-pressure cleaning truck, and water sprinkler truck.

[0028] like Figure 7 The diagram shows the layout of the vehicle model selection interface on the central control screen in this embodiment. After the central control system is powered on for the first time, the user manually selects the desired vehicle model. The central control screen then displays the corresponding vehicle model interface and establishes a bidirectional communication connection with the superstructure controller mounted on the outer frame of the driver's cab via the vehicle's CAN bus. This enables control and status monitoring of the actuators of the selected vehicle model, and facilitates data exchange between the two parties. The central control screen only requires vehicle model selection upon the first power-on. Subsequent power-ons do not require selection; the central control screen directly accesses the initially selected vehicle model interface. If the vehicle model is selected incorrectly, the user can select "Restore Factory Settings" in the "Settings" section of the app to restart and then reselect the vehicle model.

[0029] like Figure 8 The diagram shows the layout of the control interface on the central control screen of this invention. This interface layout is integrated into the "Smart Sanitation" APP, and the specific layout of the interface is as follows: Top fixed bar area: Displays general information such as logo, time and date, and alarm information from the upper device.

[0030] Left main function area: Displays the status of each actuator according to the corresponding vehicle model, such as working mode, fan mode, sweeping speed, etc. Central main functional area: Displays the status of key components, such as fan speed, according to the corresponding vehicle model; The main function area on the right displays a virtual car model of the corresponding vehicle model; Bottom menu bar area: Displays a secondary menu, showing the superstructure control functions, superstructure status information, and specific superstructure fault information according to the corresponding vehicle model.

[0031] like Figure 3 As shown, the central control screen and the superstructure controller are connected to the CAN bus. One end of the CAN bus is connected to the vehicle gateway, which has a built-in 120Ω resistor for centralized data management. The other end is connected to a 120Ω resistor for interference suppression. The communication protocol used is the standard communication protocol, which, under the standard CAN 2.0B framework, specifies message identifiers and message data content for each type of superstructure function.

[0032] Standardized CAN ID: Based on vehicle type, message priority, and message type (e.g., command / feedback / fault), it is uniformly defined to ensure orderly transmission and fast parsing of messages on the bus.

[0033] The message data content is mapped according to a fixed data structure. The message data content includes control command information, status feedback information and fault diagnosis information. The control command information, status feedback information and fault diagnosis information are uniformly defined in the CAN message according to the preset data structure mapping relationship.

[0034] For example, all four models include control commands and feedback statuses such as start / stop, mode switching, parameter setting, previous operating mode, real-time operating parameters, and maintenance reminders. These are all operated and displayed in a single location on the central control screen. Fault diagnosis information is listed in a sub-menu on the central control screen using a unified fault code (DTC) system. Each fault code corresponds to a specific fault symptom and can be queried via the central control screen.

[0035] The aforementioned standard communication protocol enables the central control screen to be compatible with four different types of upper-mount controllers, achieving "install and use" recognition and interaction.

[0036] A unified information display module is installed within the central control screen. This module displays key status information of all superstructure equipment, such as fan motor speed, fan mode, motor parameters, and system faults, in the form of visual charts, progress bars, and status indicator lights, in a fixed area of ​​the central control screen, such as the main interface or the secondary menu in the bottom menu bar. The driver can click on the secondary or tertiary menu to check the corresponding superstructure status.

[0037] After the central control screen is operated, it sends 3 CAN messages carrying control information to the upper-mount controller at a period of 200ms according to the above standard communication protocol. When the central control screen is not operated, it exchanges CAN messages carrying current status information with the upper-mount controller bidirectionally at a period of 500ms.

[0038] After receiving the CAN message carrying control information, the superstructure controller controls the corresponding actuator to perform the action according to the control information. After the action, the superstructure controller sends a CAN message carrying the current status information of the actuator to the central control screen. The central control screen receives and displays the current status information in the CAN message.

[0039] like Figure 1 The diagram illustrates the data interaction between the central control screen and the upper structure controller. After the driver clicks an operation command on the central control screen, the central control screen sends a CAN message to the upper structure controller. Upon receiving the CAN message carrying control information, the upper structure controller controls the corresponding actuators to perform actions based on the control information. After the actions are performed, the status of each actuator is sent to the upper structure controller, which then sends a CAN message carrying the current status information of the actuators to the central control screen. The central control screen receives and displays the current status information in the CAN message.

[0040] The central control screen also has a built-in unified fault module, which receives and displays all fault codes sent by the upper-mount controller. Fault information is displayed as indicator lights or text in a fixed area at the top of the central control screen, accompanied by differentiated prompt sounds.

[0041] For example, if the controller on the sweeper truck detects a "clean water tank outlet valve malfunction," it will report it via a fault message. After receiving the CAN message, the central control screen will immediately display a flashing red alarm light at the top of the screen: "E1," and simultaneously issue a voice alarm "clean water tank outlet valve malfunction" through the original vehicle audio system. The driver can click to view detailed fault information and have it repaired promptly.

[0042] like Figure 4 The image shows a message sent by the central control screen and the upper-mount controller, respectively.

[0043] The message sent by the central control screen is: 0x301, the ID of the central control screen's working mode, sent by the central control screen and received by the upper-mount controller.

[0044] The message sending type is: cycle, the message cycle time is 500ms, and the message length is 8 bytes.

[0045] This frame contains information including: detailed definitions of signals such as MMI_WorkMode (work mode), MMI_WorkStart (work start), MMI_FanStandard (fan standard mode), and MMI_FanPower (fan power mode). For example, MMI_WorkMode (work mode) is located in byte 0, bits 0-7, occupying 8 bits, and the signal transmission type is Intel format.

[0046] The signal values ​​for MMI_WorkMode are defined as follows: 0x0: Invalid; 0x1: Full scan; 0x2: Left scan; 0x3: Right scan; 0x4: Full scan; 0x5: Left scan; 0x6: Right scan; 0x7: Full scan; 0x8: Left scan; 0x9: Right scan.

[0047] The message sent by the superstructure controller is 0x401, which is the ID of the superstructure controller's working mode status feedback. It is sent by the superstructure controller and received by the central control screen.

[0048] The message sending type is: cycle, the message cycle time is 500ms, and the message length is 8 bytes.

[0049] The information contained in this frame message includes: detailed definitions of signals such as BMM_WorkMode (work mode), BMM_WorkStart (work start), BMM_FanStandard (fan standard mode), and BMM_FanPower (fan powerful mode). For example, BMM_WorkMode (work mode) is located in byte 0, bits 0-7, occupying 8 bits, and the signal transmission type is Intel format.

[0050] The signal values ​​for MMI_WorkMode are defined as follows: 0x0: Invalid; 0x1: Full scan; 0x2: Left scan; 0x3: Right scan; 0x4: Full scan; 0x5: Left scan; 0x6: Right scan; 0x7: Full scan; 0x8: Left scan; 0x9: Right scan.

[0051] After receiving the message, the central control screen updates the displayed status information. After receiving the message, the upper-mount controller sends control commands to each actuator. After each actuator performs its action, it feeds back its status to the upper-mount controller, which then sends the status of each actuator to the central control screen.

[0052] The central control system provided in this embodiment integrates all the control functions of the superstructure controller onto the central control screen via a smart sanitation APP. The central control screen is the original vehicle central control screen, and the configuration of the functions implemented using the original vehicle central control screen eliminates the need for a separate control panel in the driver's cab. This not only reduces the wiring required for the control panel but also reduces the space occupied in the driver's cab. Eliminating the need for a control panel reduces interference and the failure rate. Integrating the superstructure control functions through software requires no additional hardware.

[0053] like Figure 2 The diagram shows the cab layout of this embodiment. The dashboard in the cab is equipped with an instrument panel and a central control screen. The instrument panel is located directly in front of the steering wheel and displays basic information such as vehicle speed and battery level. The central control screen is located to the right of the steering wheel. The right side of the steering wheel is a passageway that connects to the passenger seat space. The original upper control panel located to the right of the steering wheel is integrated into the central control screen, which simplifies the cab structure.

[0054] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A central control system for a new energy sanitation vehicle integrating superstructure control functions, characterized in that, This includes a central control screen, which establishes a two-way communication connection with the upper-body controller via a CAN bus. The central control screen integrates the upper-body control functions corresponding to the upper-body controller. The communication protocol between the central control screen and the upper-mount controller is a standard communication protocol that is compatible with a variety of upper-mount controllers. The central control screen sends CAN messages carrying control information to the superstructure controller according to the driver's operation, and receives CAN messages containing status and alarm information from the superstructure controller; the CAN messages are generated according to the standard communication protocol.

2. The central control system for integrating superstructure control functions into new energy sanitation vehicles according to claim 1, characterized in that, The superstructure controller includes a sweeper superstructure controller, a rear-mounted compressor superstructure controller, a high-pressure cleaning truck superstructure controller, and a water sprinkler truck superstructure controller. The central control screen matches the corresponding superstructure controller according to the vehicle type. The central control screen integrates the superstructure control functions of the above four types of superstructure controllers.

3. The central control system for integrating superstructure control functions into new energy sanitation vehicles according to claim 2, characterized in that, The upper-mounted control functions are integrated into the central control screen in the form of software modules.

4. The central control system for integrating superstructure control functions in new energy sanitation vehicles according to claim 3, characterized in that, The software modules on the central control screen include UI interfaces corresponding to sweeper trucks, rear-loading compactor trucks, high-pressure cleaning trucks, and water sprinkler trucks. The central control screen switches to the corresponding UI interface according to the vehicle type.

5. The central control system for integrating superstructure control functions into new energy sanitation vehicles according to claim 1, characterized in that, The CAN message generated according to the standard communication protocol includes: The message identifier is uniformly defined based on vehicle type, message priority, and message type; The message data content is uniformly defined according to the preset data structure mapping.

6. The central control system for integrating superstructure control functions into a new energy sanitation vehicle according to claim 1, characterized in that, After the central control screen is operated, the central control screen sends 3 CAN messages carrying control information to the upper-mount controller at a period of 200ms according to the standard communication protocol. When the central control screen is not operated, the central control screen exchanges CAN messages carrying current status information with the upper-mount controller bidirectionally at a period of 500ms. After receiving the CAN message carrying control information, the superstructure controller controls the corresponding actuator to perform the action according to the control information. After the action, the superstructure controller sends a CAN message carrying the current status information of the actuator to the central control screen. The central control screen receives and displays the current status information in the CAN message.

7. The central control system for integrating superstructure control functions into a new energy sanitation vehicle according to claim 1, characterized in that, The central control screen includes a unified information display module, which is used to display the status information fed back by the upper-mount controller on the central control screen in a visual form.

8. The central control system for integrating superstructure control functions into a new energy sanitation vehicle according to claim 1, characterized in that, The central control screen includes a unified alarm module, which is used to uniformly receive fault codes reported by the upper-mount controller and provide alarm prompts with fixed alarm symbols.

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