Seat domain control device integrating seat electric control and pneumatic massage control

Abstract

The utility model relates to a seat domain control device integrating seat electric control and pneumatic massage control. The seat domain control device comprises a storage battery and a seat domain control unit. The storage battery is electrically connected with the power line, and the seat area control unit comprises a power supply driving module, a micro-control unit, a CAN transceiver, a data storage module and an electromagnetic valve; the power supply driving module is electrically connected with the storage battery; the micro-control unit is electrically connected with the CAN transceiver, and the CAN transceiver is connected with a vehicle body through a CAN bus and achieves CAN communication. The micro-control unit is connected with seat keys through a key signal detection circuit, connected with an adjusting motor through a HALL signal detection circuit, connected with the adjusting motor through a motor driving module, connected with a heating pad through a heater driving module and connected with a ventilation fan through a fan driving module and a PWM signal control circuit. The electromagnetic valve driving module is connected with the electromagnetic valve, and is only connected with a power supply and a CAN communication line outside the seat, so that the number of wire harnesses inside and outside the seat is reduced, and components inside the seat are easier to arrange.

Description

Technical Field

[0001] The utility model belongs to the field of seat control devices, and particularly relates to a seat domain control device integrating electric control and pneumatic massage control of a seat. Background Technique

[0002] Existing automobile seats tend to be electrically and intelligently controlled, and there are more and more requirements for comfort control. At present, most automobile seats adopt a discrete control method. For example, a pneumatic lumbar support, back massage, and side wing support are controlled by one controller, and other multi-directional motor adjustments, heating pads, etc. are controlled by another controller. There are many wires inside and outside the seat, and the layout is complex, occupying space resources and increasing the overall weight, etc., and there is no cost advantage. Content of the Utility Model

[0003] In view of the above technical problems and disadvantages, the purpose of the utility model is to provide a seat domain control device integrating electric control and pneumatic massage control of a seat, which integrates various discrete control units of an intelligent automobile seat together to implement a seat domain control unit. A seat domain control scheme that integrates hardware drive modules such as vehicle bus communication, motor control, key detection, ventilation control, heating control, pneumatic lumbar support control, pneumatic massage control, and pneumatic side wing support control is adopted. This domain control device optimizes the internal control unit resources of the seat, and is only connected to the power supply and CAN communication line outside the seat, reducing the number of internal and external wiring harnesses of the seat, making the layout of internal components of the seat simpler, and facilitating the lightweight design of the seat.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A seat domain control device integrating electric control and pneumatic massage control of a seat includes a storage battery and a seat domain control unit; wherein, the storage battery is electrically connected to the power supply line outside the seat and is used to provide a 12V power supply system; the seat domain control unit includes a power supply drive module, a micro control unit, a CAN transceiver, a data storage module, and a solenoid valve; the power supply drive module is electrically connected to the storage battery, and the power supply drive module is a dual-channel output module and is used to supply power to the devices in the seat domain control unit;

[0006] The microcontroller unit is electrically connected to the CAN transceiver. The CAN transceiver is connected to the vehicle body through the CAN bus to achieve CAN communication. The microcontroller unit is electrically connected to the seat buttons through the button signal detection circuit to receive the control instructions sent by the seat buttons. It is electrically connected to the adjustment motors on the seat through the HALL signal detection circuit to monitor the rotational speed and working conditions of each adjustment motor. It is electrically connected to the adjustment motors on the seat through the motor drive module to control the operation of each adjustment motor. It is electrically connected to the heating pads on the seat through the heater drive module to control the operation of the heating pads. It is electrically connected to the ventilation fans on the seat through the fan drive module and the PWM signal control circuit to control the operation of the ventilation fans. It is electrically connected to the air pump motors on the seat through the air pump drive module to control the operation of the air pumps. It is electrically connected to the solenoid valves through the solenoid valve drive module to control the opening or closing of the solenoid valves. The solenoid valves are connected to the pipelines connected to the massage air bags. The data storage module is electrically connected to the microcontroller unit to store data.

[0007] As a preference of the present utility model, the microcontroller unit, CAN transceiver, button signal detection circuit, HALL signal detection circuit, motor drive module, heater drive module, fan drive module, PWM signal control circuit, air pump drive module, solenoid valve drive module, and data storage module are integrated on a PCB board. The PCB board is provided with connectors to achieve electrical connection with the seat buttons, adjustment motors, heating pads, ventilation fans, and air pump motors.

[0008] As a preference of the present utility model, the power supply drive module includes an LDC power supply drive module and a DC / DC power supply drive module. The storage battery outputs 5V voltage through the LDC power supply drive module to supply power to the devices on the PCB board, and outputs 8V voltage through the DC / DC power supply drive module to supply power to the solenoid valves.

[0009] As a preference of the present utility model, the seat buttons are control signal input units, including motor buttons for controlling each adjustment motor on the seat, massage buttons for controlling each massage air bag on the seat, ventilation buttons for controlling the ventilation fans on the seat, and heating buttons for controlling the seat heating pads.

[0010] As a preference of the present utility model, the adjustment motors include seat track adjustment motors, backrest adjustment motors, and leg rest adjustment motors.

[0011] As a preference of the present utility model, the data storage module is an EEPROM module; the motor drive module is a MOS drive module or a relay drive module; the fan drive module, air pump drive module, solenoid valve drive module, and heater drive module are all MOS drive modules.

[0012] Preferably, the I2C interface of the micro - control unit is connected to the EEPROM module, and the UART interface is connected to the CAN transceiver.

[0013] Preferably, the fan drive module and the heater drive module are integrated into one module.

[0014] Advantages and beneficial effects of the present utility model:

[0015] (1) The present utility model integrates each discrete control unit of the intelligent car seat together to form a seat domain control unit. It adopts a seat domain control solution that integrates vehicle - wide bus communication, motor control, button detection, ventilation control, heating control, pneumatic lumbar support control, pneumatic massage control, pneumatic side - wing support control and other hardware drive modules. This domain control device optimizes the internal control unit resources of the seat, and is only connected to the external power supply and CAN communication line of the seat, reducing the number of internal and external wiring harnesses of the seat, making the layout of internal components of the seat simpler, and facilitating the lightweight design of the seat.

[0016] (2) The domain control unit that integrates each discrete control unit of the seat in the present utility model effectively optimizes the weight, thickness and overall cost of the seat. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is the schematic diagram of the seat domain control device of the present utility model;

[0019] Figure 2 It is the circuit diagram of the micro - control unit of the present utility model;

[0020] Figure 3 It is the circuit diagram of the relay drive module of the present utility model;

[0021] Figure 4 It is the circuit diagram of the fan and heater drive modules of the present utility model;

[0022] Figure 5 It is the circuit diagram of the HALL signal detection circuit of the present utility model;

[0023] Figure 6 It is the circuit diagram of the solenoid valve drive module of the present utility model;

[0024] Figure 7 It is the circuit diagram of the data storage module of the present utility model;

[0025] Figure 8 This is the circuit diagram of the CAN transceiver of the present utility model; Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0027] As Figure 1 shown, a seat domain control device integrating electric control of a seat and pneumatic massage control provided in this embodiment includes a storage battery and a seat domain control unit; wherein, the storage battery is electrically connected to a power cord outside the seat and is used to provide a 12V power supply system; the seat domain control unit includes a power supply driving module, a micro control unit (MCU), a CAN transceiver, a data storage module, and a solenoid valve; the power supply driving module is electrically connected to the storage battery, and the power supply driving module is a dual-channel output module and is used to supply power to the components in the seat domain control unit;

[0028] The micro control unit is electrically connected to the CAN transceiver, and the CAN transceiver is connected to the vehicle body through a CAN bus to realize CAN communication; the micro control unit is electrically connected to the seat key through a key signal detection circuit and is used to receive the control instructions sent by the seat key; it is electrically connected to the adjustment motor on the seat through a HALL signal detection circuit and is used to monitor the rotation speed and working conditions of each adjustment motor; it is electrically connected to the adjustment motor on the seat through a motor driving module and is used to control the work of each adjustment motor; it is electrically connected to the heating pad on the seat through a heater driving module and is used to control the work of the heating pad; it is electrically connected to the ventilation fan on the seat through a fan driving module and a PWM signal control circuit and is used to control the work of the ventilation fan; it is electrically connected to the air pump motor on the seat through an air pump driving module and is used to control the work of the air pump; it is electrically connected to the solenoid valve through a solenoid valve driving module and is used to control the opening or closing of the solenoid valve; the solenoid valve is connected to the pipeline connected to the massage air bag; the data storage module is electrically connected to the micro control unit and is used to store data.

[0029] In this embodiment, the micro control unit, the CAN transceiver, the key signal detection circuit, the HALL signal detection circuit, the motor driving module, the heater driving module, the fan driving module, the PWM signal control circuit, the air pump driving module, the solenoid valve driving module, and the data storage module are integrated on a PCB board, and a connector is provided on the PCB board to realize connection with the seat key, the adjustment motor, the heating pad, the ventilation fan, the air pump motor, etc.

[0030] Furthermore, in this embodiment, the power supply driving module includes an LDC power supply driving module and a DC / DC power supply driving module. The storage battery outputs a 5V voltage through the LDC power supply driving module for powering the devices on the PCB board, and outputs an 8V voltage through the DC / DC power supply driving module for powering the solenoid valve. The LDC power supply driving module and the DC / DC power supply driving module can directly adopt existing modules. Since the module itself is not an improvement point of this application, it will not be introduced in detail herein.

[0031] In this embodiment, the seat key is a control signal input unit, including a motor key for controlling each adjustment motor on the seat, a massage key for controlling each massage airbag on the seat, a ventilation key for controlling the ventilation fan on the seat, and a heating key for controlling the seat heating pad.

[0032] The adjustment motors include a seat slide rail adjustment motor, a backrest adjustment motor, and a leg rest adjustment motor.

[0033] In this embodiment, the data storage module is an EEPROM module; the motor driving module is a MOS driving module or a relay driving module, preferably a relay driving module, specifically as Figure 3 shown; the fan driving module, the air pump driving module, the solenoid valve driving module, and the heater driving module are all MOS driving modules.

[0034] The I2C interface of the micro control unit is connected to the EEPROM module, the UART interface is connected to the CAN transceiver, and the remaining circuits or modules are connected to the GPIO interface. The circuit diagram of the micro control unit is as Figure 2 shown;

[0035] The fan driving module and the heater driving module are integrated into one module, specifically as Figure 4 shown.

[0036] It should be noted that the key point of this application is to integrate the existing separate control units together to implement a seat domain control unit. The internal circuits of each module and the specific connection relationships with the pins of the micro control unit are not the key points of this application. Those skilled in the art can make fine adjustments to the internal circuits of each module or adjust the specific connection relationships of the pins of the micro control unit with reference to the existing design methods.

[0037] To make those skilled in the art more clear about the above-mentioned modules, the circuit diagrams of the HALL signal detection circuit, the solenoid valve driving module, the data storage module, and the CAN transceiver are also provided in the attached drawings of the specification of this application, specifically as Figures 5 to 8As shown; of course, the above-mentioned drawings are only for illustrative purposes and are not used to limit the present application. Those skilled in the art can refer to the prior art and adopt other module structures that can achieve the above functions.

[0038] The above is the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A seat domain control device integrating electric control of a seat and pneumatic massage control, characterized in that, It includes a storage battery and a seat domain control unit; wherein, the storage battery is electrically connected to a power cord outside the seat and is used to provide a 12V power supply system; the seat domain control unit includes a power supply driving module, a micro control unit, a CAN transceiver, a data storage module, and a solenoid valve; the power supply driving module is electrically connected to the storage battery, and the power supply driving module is a dual-channel output module and is used to supply power to the devices in the seat domain control unit; The micro control unit is electrically connected to the CAN transceiver, and the CAN transceiver is connected to the vehicle body through a CAN bus and realizes CAN communication; the micro control unit is electrically connected to the seat buttons through a button signal detection circuit and is used to receive the control instructions sent by the seat buttons; it is electrically connected to the adjustment motors on the seat through a HALL signal detection circuit and is used to monitor the rotation speed and working conditions of each adjustment motor; it is electrically connected to the adjustment motors on the seat through a motor driving module and is used to control the work of each adjustment motor; it is electrically connected to the heating pads on the seat through a heater driving module and is used to control the work of the heating pads; it is electrically connected to the ventilation fans on the seat through a fan driving module and a PWM signal control circuit and is used to control the work of the ventilation fans; it is electrically connected to the air pump motors on the seat through an air pump driving module and is used to control the work of the air pumps; it is electrically connected to the solenoid valve through a solenoid valve driving module and is used to control the opening or closing of the solenoid valve; the solenoid valve is connected to the pipeline connected to the massage airbag; the data storage module is electrically connected to the micro control unit and is used to store data.

2. The seat domain control device integrating electric control of the seat and pneumatic massage control according to claim 1, characterized in that, The micro control unit, the CAN transceiver, the button signal detection circuit, the HALL signal detection circuit, the motor driving module, the heater driving module, the fan driving module, the PWM signal control circuit, the air pump driving module, the solenoid valve driving module, and the data storage module are integrated on a PCB board, and connectors are provided on the PCB board to realize electrical connection with the seat buttons, adjustment motors, heating pads, ventilation fans, and air pump motors.

3. The seat domain control device integrating electric control of the seat and pneumatic massage control according to claim 1, characterized in that, The power supply driving module includes an LDC power supply driving module and a DC / DC power supply driving module. The storage battery outputs 5V voltage through the LDC power supply driving module to supply power to the devices on the PCB board, and outputs 8V voltage through the DC / DC power supply driving module to supply power to the solenoid valve.

4. The seat domain control device integrating electric control of the seat and pneumatic massage control according to claim 1, characterized in that, The seat buttons are control signal input units, including motor buttons for controlling each adjustment motor on the seat, massage buttons for controlling each massage airbag on the seat, ventilation buttons for controlling the ventilation fans on the seat, and heating buttons for controlling the seat heating pads.

5. The seat domain control device integrating electric control of the seat and pneumatic massage control according to claim 1, characterized in that, The adjustment motors include a seat slide rail adjustment motor, a backrest adjustment motor, and a leg rest adjustment motor.

6. The seat domain control device integrating electric control of the seat and pneumatic massage control according to claim 1, characterized in that, The data storage module is an EEPROM module; the motor driving module is a MOS driving module or a relay driving module; the fan driving module, the air pump driving module, the solenoid valve driving module, and the heater driving module are all MOS driving modules.

7. The seat domain control device integrating electric control of the seat and pneumatic massage control according to claim 6, characterized in that, The I2C interface of the micro control unit is connected to the EEPROM module, and the UART interface is connected to the CAN transceiver.

8. The seat domain control device integrating electric control of the seat and pneumatic massage control according to claim 6, characterized in that, The fan driving module and the heater driving module are integrated into one module.

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