CN109435789B - Control driving system for multi-speed adjustment of electric seat - Google Patents
Control driving system for multi-speed adjustment of electric seat Download PDFInfo
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- CN109435789B CN109435789B CN201910000541.7A CN201910000541A CN109435789B CN 109435789 B CN109435789 B CN 109435789B CN 201910000541 A CN201910000541 A CN 201910000541A CN 109435789 B CN109435789 B CN 109435789B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/02246—Electric motors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
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Abstract
The invention relates to a control drive system for the multi-speed adjustment of an electric seat, comprising: the multi-speed seat adjusting device comprises a horizontal adjusting motor connected with a seat cushion of a seat, a first Hall sensor connected with the horizontal adjusting motor, a backrest adjusting motor connected with a backrest of the seat, a second Hall sensor connected with the backrest adjusting motor, and a multi-speed seat adjusting control module, wherein the multi-speed seat adjusting control module comprises: the device comprises a micro-processing unit, a switch sampling unit, a current sensor sampling unit, a motor driving circuit, a Hall sensor sampling unit, a power management unit and a bus unit, wherein the switch sampling unit, the current sensor sampling unit, the motor driving circuit, the Hall sensor sampling unit, the power management unit and the bus unit are respectively connected with the micro-processing unit. The invention fills the blank of easy access of the electric seat and quick folding of the high-speed pure electric realization in the current market, and solves the problems of inconvenient operation, complex structure, high cost, comfort, insufficient safety and the like of manual and semi-electric schemes in the prior art.
Description
Technical Field
The invention relates to a control drive system for multi-speed adjustment of a power seat.
Background
An increasing number of automotive mainframe manufacturers are demanding multi-speed adjustment requirements for automotive power seats, such as Easy Entry (EZE) functionality for front and second row seats, quick turn-Over (OTF) functionality for third row seats, and the like. The existing solutions for the EZE function and the OTF function of the seat mainly include the following:
1) manual horizontal adjustment and manual rapid backrest turnover;
2) electric low-speed horizontal adjustment and manual rapid backrest turnover;
3) electric low-speed horizontal adjustment and electric low-speed backrest folding
However, these existing solutions described above have the following drawbacks:
1) the pure manual scheme has the defects of inconvenient operation, large operating force and the like;
2) the semi-electric scheme has low horizontal adjustment speed, and manual adjustment operation of the backrest is inconvenient;
3) the full-electric scheme has low regulation speed and long waiting time;
in view of the foregoing, there is a need to develop a control drive system for multi-speed adjustment of a power seat that overcomes the above-mentioned disadvantages.
Disclosure of Invention
In order to solve the problems of the prior art, the invention aims to provide a control driving system for multi-speed adjustment of a power seat, so as to control and drive the seat to realize multi-speed and constant-speed horizontal adjustment and backrest angle adjustment.
A control drive system for multi-speed adjustment of a power seat according to the present invention comprises: a horizontal adjustment motor connected to a seat cushion of a seat, a first hall sensor connected to the horizontal adjustment motor, a backrest adjustment motor connected to a backrest of the seat, a second hall sensor connected to the backrest adjustment motor, and a seat multi-speed adjustment control module, wherein the seat multi-speed adjustment control module is configured to:
after a seat cushion horizontal adjustment command is received, controlling the horizontal adjustment motor to drive the seat cushion to horizontally move at a first moving speed, and realizing PWM constant-speed control on the horizontal adjustment motor according to the speed of the horizontal adjustment motor fed back by the first Hall sensor and a current signal sampled by the seat multi-speed adjustment control module from the horizontal adjustment motor;
after a backrest angle adjusting command is received, controlling the backrest adjusting motor to drive the backrest to rotate at a first rotating speed, and realizing PWM constant-speed control on the backrest adjusting motor according to the speed of the backrest adjusting motor fed back by the second Hall sensor and a current signal sampled by the seat multi-speed adjusting control module from the backrest adjusting motor;
after receiving an EZE command, memorizing the current position information of the horizontal adjusting motor and the backrest adjusting motor collected by the first Hall sensor and the second Hall sensor, and controlling the horizontal adjusting motor and the backrest adjusting motor to respectively drive the seat cushion and the backrest to move to the position required by the EZE at a second moving speed and a second rotating speed according to the preset motor position information corresponding to the EZE function; after receiving an EZE recovery command, controlling the horizontal adjusting motor and the backrest adjusting motor to respectively drive the seat cushion and the backrest to move back to the positions before EZE is performed at a second moving speed and a second rotating speed; and
after receiving an OTF command, memorizing the current position information of the backrest adjusting motor acquired by the second Hall sensor, and controlling the backrest adjusting motor to drive the backrest to move to the position required by the OTF at a third rotating speed according to the preset motor position information corresponding to the OTF function; after receiving an OTF recovery command, controlling the backrest adjusting motor to drive the backrest to move back to the position before OTF at a third rotating speed;
the second moving speed is greater than the first moving speed, and the second rotating speed and the third rotating speed are greater than the first rotating speed.
In the above-described control drive system for multi-speed adjustment of a power seat, the seat multi-speed adjustment control module is further configured to: and analyzing the speed and current signals of the horizontal adjusting motor, and calculating and comparing the speed and current signals with a preset first threshold value of the speed and current so as to realize PWM constant-speed control through a closed-loop control algorithm.
In the above-described control drive system for multi-speed adjustment of a power seat, the seat multi-speed adjustment control module is further configured to: and analyzing the speed and current signals of the backrest adjusting motor, and calculating and comparing the speed and current signals with a preset second threshold value of the speed and current so as to realize PWM constant-speed control through a closed-loop control algorithm.
In the above-described control drive system for multi-speed adjustment of a power seat, the seat multi-speed adjustment control module is further configured to: in the movement process of the seat, the position of a hard gear point of the seat is automatically identified, soft gear point position information is automatically set according to the identified position of the hard gear point, and meanwhile, when the seat is detected to move to the position of the soft gear point again, the horizontal adjusting motor and/or the backrest adjusting motor are controlled to stop.
In the above-described control drive system for multi-speed adjustment of a power seat, the seat multi-speed adjustment control module is further configured to: and in the movement process of the seat, the current and speed information of the horizontal adjusting motor and the backrest adjusting motor corresponding to the position of the seat is tracked all the time, and is compared with the current and speed information of a preset reference standard position constantly so as to automatically detect and identify the obstacle information.
In the above control drive system for multi-speed adjustment of a power seat, the seat multi-speed adjustment control module is a separate module or is integrated in a seat function module of the seat.
In the above-described control drive system for multi-speed adjustment of a power seat, the seat multi-speed adjustment control module comprising: the intelligent seat comprises a micro-processing unit, a switch sampling unit, a current sensor sampling unit, a motor driving circuit, a Hall sensor sampling unit, a power management unit and a bus unit, wherein the switch sampling unit, the current sensor sampling unit, the Hall sensor sampling unit, the power management unit and the bus unit are respectively connected with the micro-processing unit, the switch sampling unit is connected with a seat adjusting switch of a seat, the current sensor sampling unit is connected with the motor driving circuit, the motor driving circuit is connected with a horizontal adjusting motor and a backrest adjusting motor, the Hall sensor sampling unit is connected with a first Hall sensor and a second Hall sensor, and the power management unit and the bus unit are connected with a vehicle body.
In the above-described control drive system for multi-speed adjustment of a power seat, the seat multi-speed adjustment control module comprising: the first control submodule and the second control submodule are integrated with the horizontal adjusting motor and the backrest adjusting motor respectively and have the same structure.
In the above-described control drive system for multi-speed adjustment of a power seat, the first and second control sub-modules each include: the device comprises a micro-processing unit, a switch sampling unit, a current sensor sampling unit, a motor driving circuit, a Hall sensor sampling unit, a power management unit and a bus unit which are respectively connected with the micro-processing unit, wherein the current sensor sampling unit is connected with the motor driving circuit, the power management unit and the bus unit are connected with a vehicle body, the switch sampling unit in a first control submodule is connected with a seat cushion adjusting switch of the seat, the motor driving circuit in the first control submodule is connected with a horizontal adjusting motor, the Hall sensor sampling unit in the first control submodule is connected with a first Hall sensor, the switch sampling unit in a second control submodule is connected with a backrest adjusting switch of the seat, and the motor driving circuit in the second control submodule is connected with the backrest adjusting motor, and a Hall sensor sampling unit in the second control submodule is connected with the second Hall sensor.
In the above control drive system for multi-speed adjustment of a power seat, further comprising:
the horizontal adjusting transmission mechanism is connected with the horizontal adjusting motor and is connected with an electric sliding rail arranged on the seat cushion through a transmission shaft; and
and the backrest angle adjusting transmission mechanism is connected with the backrest adjusting motor and is connected with an angle adjuster arranged on the backrest through a transmission shaft.
Due to the adoption of the technical scheme, the fully-electric high-low speed adjustment of the seat slide rail and the angle adjuster can be realized simultaneously by only one set of control driving system, the EZE function of the front row seat and the second row seat of the automobile, the OTF function of the three rows of seats and the like can be realized fully electrically while the full-electric comfort adjustment of the seat level and the backrest is realized, so that the blank that the electric seat is easy to enter and can be folded quickly in the current market for realizing high-speed pure electric is made up, and the problems of inconvenient operation, complex structure, high cost, comfort, insufficient safety and the like of the manual and semi-electric schemes in the prior art are solved.
Drawings
FIG. 1 is a schematic block diagram of a control drive system for multi-speed adjustment of a power seat in accordance with the present invention;
FIG. 2 is a block diagram of a seat multi-speed adjustment control module in a control drive system for multi-speed adjustment of a power seat according to the present invention;
FIG. 3 is a flow chart of the present invention for achieving a comfortable constant speed adjustment function of the seat in the horizontal direction;
FIG. 4 is a schematic view of the seat in both the initial and final positions for achieving a comfort constant speed adjustment function of the seat in the horizontal direction by the present invention;
FIG. 5 is a flow chart of the present invention for achieving a comfortable constant speed adjustment of the angle of the seat back;
FIG. 6 is a schematic view of a seat in an initial position and a final position for achieving a comfortable constant speed seat back angle adjustment function by the present invention;
FIG. 7 is a flow chart of the present invention implementing the EZE function;
FIG. 8 is a schematic view of the seat in the initial and final positions for the EZE function enabled by the present invention;
FIG. 9 is a flow chart of the present invention for implementing OTF functionality;
figure 10 is a schematic view of the condition of a seat in both the initial and final positions for OTF functionality achieved by the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the present invention, a control drive system for multi-speed adjustment of a power seat, comprises: a motor assembly, a transmission assembly, and a seat multi-speed adjustment control module 1, wherein,
the motor assembly includes: a horizontal adjusting motor M1, a backrest adjusting motor M2, a first Hall sensor H1 connected with the horizontal adjusting motor M1 and a second Hall sensor H2 connected with the backrest adjusting motor M2;
the transmission assembly includes: a horizontal adjustment transmission mechanism a1 connected to the horizontal adjustment motor M1, and a backrest angle adjustment transmission mechanism a2 connected to the backrest adjustment motor M2, wherein the horizontal adjustment transmission mechanism a1 is connected to an electric slide rail (not shown) of a seat cushion 3 mounted to the seat through a transmission shaft 2, so that the seat cushion 3 is moved in a horizontal adjustment direction 4 by the driving of the horizontal adjustment motor M1, and the backrest angle adjustment transmission mechanism a2 is connected to a recliner (not shown) of a backrest 5 mounted to the seat through another transmission shaft 2, so that the backrest 5 is turned in a backrest adjustment direction 6 by the driving of the backrest adjustment motor M2;
the multispeed regulation control module 1 of the seat mainly comprises an integrated circuit, a diode, a triode, a resistor, a capacitor, a connector, a printed circuit board, a shell and the like, and specifically comprises: a micro-processing unit (MCU)11, a switch sampling unit 12, a current sensor sampling unit 13, a motor driving circuit 14, a Hall sensor sampling unit 15, a power management unit 16 and a bus unit 17 which are respectively connected with the micro-processing unit 11, wherein the switch sampling unit 12 is connected with a seat adjusting switch 7 on a seat, the current sensor sampling unit 13 is connected with the motor driving circuit 14, the motor driving circuit 14 is connected with a horizontal adjusting motor M1 and a backrest adjusting motor M2, the Hall sensor sampling unit 15 is connected with a first Hall sensor H1 and a second Hall sensor H2, and the power management unit 16 and the bus unit 17 are connected with a vehicle body 8.
The system of the invention mainly realizes that: the motor assembly and the transmission assembly are controlled by a PWM speed regulation mode, so that the electric slide rail and the angle regulator of the seat can run at a low speed when comfort regulation is realized, and the electric slide rail and the angle regulator of the seat can run at a high speed when an EZE function or a rapid OTF function is realized; specifically, the method comprises the following steps:
(1) when the multi-speed adjusting control module 1 of the seat receives the horizontal adjusting command of the seat cushion, the multi-speed adjusting control module 1 of the seat carries out PWM control on the horizontal adjusting motor M1 to drive the seat cushion 3 to move forwards or backwards at a low speed, at the same time, the first hall sensor H1 feeds back the speed of the leveling motor M1 to the seat multi-speed adjustment control module 1, and the seat multi-speed regulation control module 1 samples the current signal of the horizontal regulation motor M1 (namely, the current signal in the motor driving circuit 14 is fed back to the micro-processing unit 11 after being sampled by the current sensor sampling unit 13), then the multi-speed regulation control module 1 of the seat analyzes the speed and current signals of the horizontal regulation motor M1, and calculates and compares the signals with preset speed and current thresholds, the PWM constant speed control is realized through a closed-loop control algorithm, namely, the comfortable constant speed adjustment of the seat in the horizontal direction is realized;
(2) when the multi-speed adjusting control module 1 receives the backrest angle adjusting command, the multi-speed adjusting control module 1 performs PWM control on the backrest adjusting motor M2 to make it drive the backrest 5 to rotate forwards or backwards at low speed, at the same time, the second hall sensor H2 feeds back the speed of the back adjustment motor M2 to the seat multi-speed adjustment control module 1, and the seat multi-speed adjustment control module 1 samples the current signal of the backrest adjustment motor M2 (i.e. the current signal in the motor driving circuit 14 is sampled by the current sensor sampling unit 13 and then fed back to the micro-processing unit 11), then the seat multi-speed adjusting control module 1 analyzes the speed and current signals of the backrest adjusting motor M2, and calculates and compares the speed and current signals with preset speed and current thresholds, the PWM constant speed control is realized through a closed-loop control algorithm, namely, the comfortable constant speed adjustment of the angle of the backrest of the seat is realized;
(3) after the multi-speed seat adjustment control module 1 receives an EZE command, the position information of a current horizontal adjustment motor M1 and a current backrest adjustment motor M2 is recorded, and then according to the preset position information of a horizontal adjustment motor M1 and a backrest adjustment motor M2 corresponding to the EZE function, the horizontal adjustment motor M1 and the backrest adjustment motor M2 are subjected to PWM control to respectively drive the seat cushion 3 and the backrest 5 to move to the positions required by the EZE at high speed (namely, one-key linkage of an electric sliding rail and an angle adjuster is realized), so that the EZE function is completed; after the multi-speed seat adjusting control module 1 receives the EZE restoring command, PWM control is performed on the horizontal adjusting motor M1 and the backrest adjusting motor M2 to respectively drive the seat cushion 3 and the backrest 5 to move back to the positions before EZE is performed (i.e., one-key restoration of the electric slide rail and the angle adjuster is realized);
(4) after receiving the OTF command, the multi-speed seat adjustment control module 1 records the position information of the current backrest adjustment motor M2, and then performs PWM control on the backrest adjustment motor M2 according to the position information of the preset backrest adjustment motor M2 corresponding to the OTF function, so that the backrest adjustment motor M2 drives the backrest 5 to move to the position required by the OTF at a high speed, thereby completing the OTF function; after the seat multi-speed adjustment control module 1 receives the OTF recovery command, PWM control is performed on the backrest adjustment motor M2 to make it drive the backrest 5 to move back to the position before OTF.
In the above control process, the system of the present invention also realizes the following functions:
(1) a position memory function: in the operation process of the horizontal adjusting motor M1 and the backrest adjusting motor M2, the first Hall sensor H1 and the second Hall sensor H2 detect the operation conditions of the motors in real time, and when the multi-speed seat adjusting control module 1 receives a position memory command, the current position information of the horizontal adjusting motor M1 and the backrest adjusting motor M2 is stored in the microprocessing unit 11 of the seat adjusting control module; when the seat multi-speed adjustment control module 1 receives the position extraction command, the recorded position information of the horizontal adjustment motor M1 and the back adjustment motor M2 is first extracted from its microprocessor unit 11, and then the horizontal adjustment motor M1 and the back adjustment motor M2 are driven to operate to the memory position.
(2) The motor locked-rotor protection function: in the forward or backward movement process of the seat cushion 3 and the backrest 5, the seat multi-speed adjustment control module 1 automatically identifies the hard gear position of the electric slide rail and the angle adjuster, and automatically sets soft gear position information after identifying the hard gear position to prevent the horizontal adjustment motor M1 and the backrest adjustment motor M2 from driving the electric slide rail and the angle adjuster to operate again to the hard gear position, and simultaneously controls the horizontal adjustment motor M1 and the backrest adjustment motor M2 to stop when detecting that the electric slide rail and the angle adjuster operate again to the soft gear position, thereby preventing the motor from being locked, and further playing a role in protecting the motor and the transmission mechanism;
(3) the anti-pinch function is as follows: in the moving process of the seat, the multi-speed adjusting control module 1 of the seat automatically detects and identifies the obstacle information, namely, the current and the speed information of the horizontal adjusting motor M1 and the backrest adjusting motor M2 corresponding to the position of the seat are tracked all the time in the moving process of the seat, and are compared with the current and the speed information of the preset reference standard position all the time.
The main functions of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 3 and 4, the process of implementing the comfort constant-speed adjustment function of the seat in the horizontal direction according to the invention is as follows:
when the switch sampling unit 12 detects that the seat adjusting switch 7 executes a seat cushion horizontal adjusting action, or the bus unit 17 receives a seat cushion horizontal adjusting command from the vehicle body 8, if the seat is commanded to move forward, the microprocessor unit 11 performs PWM control on the horizontal adjusting motor M1 through the motor driving circuit 14 to drive the seat to move forward horizontally at a constant speed (the adjusting speed is 20mm/s, for example) until the shift position is reached and then stops; similarly, if the seat is commanded to move backward, the microprocessor unit 11 performs PWM control on the horizontal adjustment motor M1 through the motor driving circuit 14 to drive the seat to move horizontally backward at a constant speed (the adjustment speed is 20mm/s, for example), and then stops when the seat reaches the shift position; in this process, if the switch sampling unit 12 detects that the seat adjusting switch 7 stops operating, or the bus unit 17 receives a stop command from the vehicle body 8, the microprocessor unit 11 stops the horizontal adjusting motor M1 from driving the seat to move horizontally forward or backward through the motor driving circuit 14.
As shown in fig. 5 and 6, the process of implementing the comfort constant-speed adjustment function of the angle of the seat back according to the invention is as follows:
when the switch sampling unit 12 detects that the seat adjusting switch 7 executes the backrest angle adjusting action, or after the bus unit 17 receives a backrest angle adjusting command from the vehicle body 8, if the backrest is instructed to move forward, the microprocessor unit 11 performs PWM control on the backrest adjusting motor M2 through the motor driving circuit 14 to drive the seat backrest to move forward at a constant speed (the adjusting speed is, for example, 3.25 °/s), and the control is stopped until the shift position is reached; similarly, if the backrest is commanded to move backward, the micro-processing unit 11 performs PWM control on the backrest adjustment motor M2 through the motor driving circuit 14 to drive the seat backrest to move backward at a constant speed (the adjustment speed is, for example, 3.25 °/s) until the seat backrest reaches the shift position and then stops; in this process, if the switch sampling unit 12 detects that the seat adjusting switch 7 is stopped, or the bus unit 17 receives a stop command from the vehicle body 8, the microprocessor unit 11 causes the backrest adjusting motor M2 to stop driving the seat backrest to move forward or backward through the motor driving circuit 14.
As shown in fig. 7 and 8, the process of implementing EZE function of the present invention is as follows:
when the horizontal adjusting motor M1 or the backrest adjusting motor M2 is running, the first Hall sensor H1 and the second Hall sensor H2 respectively monitor the running of the horizontal adjusting motor M1 and the backrest adjusting motor M2 in real time; when the horizontal adjustment motor M1 or the backrest adjustment motor M2 stops operating, if the switch sampling unit 12 detects that the seat adjustment switch 7 performs EZE action, or the bus unit 17 receives an EZE command from the vehicle body 8, the micro-processing unit 11 saves the position information of the current horizontal adjustment motor M1 and the backrest adjustment motor M2 collected by the hall sensor sampling unit 15 from the first and second hall sensors H1 and H2, and when the saving succeeds, the micro-processing unit 11 extracts the position information of the horizontal adjustment motor M1 and the backrest adjustment motor M2 preset corresponding to the EZE function, and controls the horizontal adjustment motor M1 and the backrest adjustment motor M2 through the motor driving circuit 14 to drive the seat cushion 3 and the backrest 5 to move to the EZE position at high speed (the backrest adjustment speed is, for example, 10 °/s, and the seat cushion adjustment speed is, for example, 40 mm/s); if the switch sampling unit 12 detects that the seat adjustment switch 7 stops the EZE action, or the bus unit 17 receives the EZE return command from the vehicle body 8, the microprocessor unit 11 extracts the position information of the horizontal adjustment motor M1 and the back adjustment motor M2 saved before the EZE is performed, and controls the horizontal adjustment motor M1 and the back adjustment motor M2 through the motor drive circuit 14 to drive the seat cushion 3 and the back cushion 5 to move back to the positions before the EZE is performed at a high speed (the back adjustment speed is, for example, 10 °/s, and the seat cushion adjustment speed is, for example, 40 mm/s).
As shown in fig. 9 and 10, the process of implementing OTF function of the present invention is as follows:
when the backrest adjusting motor M2 is operating, the second hall sensor H2 monitors the operation of the backrest adjusting motor M2 in real time; after the backrest adjusting motor M2 stops operating, if the switch sampling unit 12 detects that the seat adjusting switch 7 executes an OTF action, or the bus unit 17 receives an OTF command from the vehicle body 8, the microprocessor unit 11 stores the current position information of the backrest adjusting motor M2 collected by the hall sensor sampling unit 15 from the second hall sensor H2, and after successful storage, the microprocessor unit 11 extracts the preset position information of the backrest adjusting motor M2 corresponding to the OTF function, and controls the backrest adjusting motor M2 through the motor driving circuit 14 to drive the backrest 5 to move to the OTF position at a high speed (the backrest adjusting speed is, for example, 15 °/s); if the switch sampling unit 12 detects that the seat adjustment switch 7 stops the OTF operation, or the bus unit 17 receives an OTF recovery command from the vehicle body 8, the microprocessor unit 11 extracts the position information of the backrest adjustment motor M2 saved before the OTF operation, and controls the backrest adjustment motor M2 through the motor drive circuit 14 to drive the backrest 5 to move back to the position before the OTF operation at a high speed (the backrest adjustment speed is, for example, 15 °/s).
The multi-speed seat adjustment control module 1 according to the present invention can be integrated into an existing seat functional module, i.e. the seat functional module includes all functional units in the multi-speed seat adjustment control module 1 and other functional units of the seat, so that the integration of the seat functional module can be improved and the dimensional variations of the current transmission elements can be minimized.
Of course, the multi-speed seat adjustment control module 1 can also be present as a single two-speed adjustment module independently of the existing seat function modules, so that the dimensional and functional changes of the current transmission and to the current seat function module can be minimized, and the independent module also has the advantage of flexible arrangement.
In addition, the multi-speed seat adjustment control module 1 may also be implemented by using a motor integrated module control strategy, specifically, the multi-speed seat adjustment control module 1 may have two sets of the same functional units, one set of the functional units is integrated with the horizontal adjustment motor M1 to form a horizontal motor integrated module, and the other set of the functional units is integrated with the backrest adjustment motor M2 to form a backrest motor integrated module, wherein each set of the functional units includes: the device comprises a micro-processing unit 11, a switch sampling unit 12, a current sensor sampling unit 13, a motor driving circuit 14, a Hall sensor sampling unit 15, a power management unit 16 and a bus unit 17 which are respectively connected with the micro-processing unit 11, wherein the current sensor sampling unit 13 is connected with the motor driving circuit 14; and the switch sampling unit 12 in one set of function units integrated with the horizontal adjusting motor M1 is connected with a seat adjusting switch for controlling the seat cushion, the motor driving circuit 14 is connected with the horizontal adjusting motor M1, the Hall sensor sampling unit 15 is connected with a first Hall sensor H1, the switch sampling unit 12 in the other set of function units integrated with the backrest adjusting motor M2 is connected with a seat adjusting switch for controlling the backrest, the motor driving circuit 14 is connected with the backrest adjusting motor M2, and the Hall sensor sampling unit 15 is connected with a second Hall sensor H2. The integration level of the transmission element can be increased, and the seat cushion and the backrest can be controlled separately without changing the currently existing seat function module.
In conclusion, the invention realizes the EZE function of the front row and the second row seats of the automobile, the OTF function of the three row seats and the like, simultaneously enables the seats to have the normal comfort electric adjusting function, and has the advantages of simple operation, high comfort, high electric operation speed and the like.
The above embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and various changes may be made in the above embodiments of the present invention. All simple and equivalent changes and modifications made according to the claims and the content of the specification of the present application fall within the scope of the claims of the present patent application. The invention has not been described in detail in order to avoid obscuring the invention.
Claims (8)
1. A control drive system for multi-speed adjustment of a power seat, the system comprising: a horizontal adjustment motor connected to a seat cushion of a seat, a first hall sensor connected to the horizontal adjustment motor, a backrest adjustment motor connected to a backrest of the seat, a second hall sensor connected to the backrest adjustment motor, and a seat multi-speed adjustment control module, wherein the seat multi-speed adjustment control module is configured to:
after a seat cushion horizontal adjustment command is received, controlling a horizontal adjustment motor to drive a seat cushion to horizontally move at a first movement speed of 20mm/s, analyzing the speed of the horizontal adjustment motor fed back by a first Hall sensor and a current signal sampled by a multi-speed adjustment control module of the seat from the horizontal adjustment motor, calculating and comparing the speed with a preset first threshold value of the speed and the current, and realizing PWM constant-speed control on the horizontal adjustment motor through a closed-loop control algorithm;
after a backrest angle adjusting command is received, controlling the backrest adjusting motor to drive the backrest to rotate at a first rotation speed of 3.25 degrees/s, analyzing the speed of the backrest adjusting motor fed back by the second Hall sensor and a current signal sampled by the seat multi-speed adjusting control module from the backrest adjusting motor, calculating and comparing the speed and the current signal with a preset second threshold value of the speed and the current, and realizing PWM constant-speed control on the backrest adjusting motor through a closed-loop control algorithm;
after receiving an EZE command, memorizing the current position information of the horizontal adjusting motor and the backrest adjusting motor collected by the first Hall sensor and the second Hall sensor, and controlling the horizontal adjusting motor and the backrest adjusting motor to respectively drive the seat cushion and the backrest to move to the position required by EZE at a second moving speed of 40mm/s and a second rotating speed of 10 degrees/s according to the preset motor position information corresponding to the EZE function; after receiving an EZE recovery command, controlling the horizontal adjusting motor and the backrest adjusting motor to respectively drive the seat cushion and the backrest to move back to the positions before EZE is performed at a second moving speed of 40mm/s and a second rotating speed of 10 degrees/s; and
after receiving an OTF command, memorizing the current position information of the backrest adjusting motor acquired by the second Hall sensor, and controlling the backrest adjusting motor to drive the backrest to move to the position required by the OTF at a third rotation speed of 15 degrees/s according to the preset motor position information corresponding to the OTF function; and after receiving the OTF recovery command, controlling the backrest adjusting motor to drive the backrest to move back to the position before OTF at a third rotation speed of 15 °/s.
2. The control drive system for multi-speed adjustment of a power seat of claim 1, wherein said seat multi-speed adjustment control module is further configured to: in the movement process of the seat, the position of a hard gear point of the seat is automatically identified, soft gear point position information is automatically set according to the identified position of the hard gear point, and meanwhile, when the seat is detected to move to the position of the soft gear point again, the horizontal adjusting motor and/or the backrest adjusting motor are controlled to stop.
3. The control drive system for multi-speed adjustment of a power seat of claim 1, wherein said seat multi-speed adjustment control module is further configured to: and in the movement process of the seat, the current and speed information of the horizontal adjusting motor and the backrest adjusting motor corresponding to the position of the seat is tracked all the time, and is compared with the current and speed information of a preset reference standard position constantly so as to automatically detect and identify the obstacle information.
4. A control drive system for multi-speed adjustment of a power seat as defined in claim 1 wherein said seat multi-speed adjustment control module is a stand-alone module or is integrated into a seat function module onboard said seat.
5. The control drive system for multi-speed adjustment of a power seat of claim 4, wherein said seat multi-speed adjustment control module comprises: the intelligent seat comprises a micro-processing unit, a switch sampling unit, a current sensor sampling unit, a motor driving circuit, a Hall sensor sampling unit, a power management unit and a bus unit, wherein the switch sampling unit, the current sensor sampling unit, the Hall sensor sampling unit, the power management unit and the bus unit are respectively connected with the micro-processing unit, the switch sampling unit is connected with a seat adjusting switch of a seat, the current sensor sampling unit is connected with the motor driving circuit, the motor driving circuit is connected with a horizontal adjusting motor and a backrest adjusting motor, the Hall sensor sampling unit is connected with a first Hall sensor and a second Hall sensor, and the power management unit and the bus unit are connected with a vehicle body.
6. The control drive system for multi-speed adjustment of a power seat of claim 1, wherein said seat multi-speed adjustment control module comprises: the first control submodule and the second control submodule are integrated with the horizontal adjusting motor and the backrest adjusting motor respectively and have the same structure.
7. The control drive system for multi-speed adjustment of a power seat as set forth in claim 6, wherein said first and second control sub-modules each include: the device comprises a micro-processing unit, a switch sampling unit, a current sensor sampling unit, a motor driving circuit, a Hall sensor sampling unit, a power management unit and a bus unit which are respectively connected with the micro-processing unit, wherein the current sensor sampling unit is connected with the motor driving circuit, the power management unit and the bus unit are connected with a vehicle body, the switch sampling unit in a first control submodule is connected with a seat cushion adjusting switch of the seat, the motor driving circuit in the first control submodule is connected with a horizontal adjusting motor, the Hall sensor sampling unit in the first control submodule is connected with a first Hall sensor, the switch sampling unit in a second control submodule is connected with a backrest adjusting switch of the seat, and the motor driving circuit in the second control submodule is connected with the backrest adjusting motor, and a Hall sensor sampling unit in the second control submodule is connected with the second Hall sensor.
8. The control drive system for multi-speed adjustment of a power seat of claim 1, further comprising:
the horizontal adjusting transmission mechanism is connected with the horizontal adjusting motor and is connected with an electric sliding rail arranged on the seat cushion through a transmission shaft; and
and the backrest angle adjusting transmission mechanism is connected with the backrest adjusting motor and is connected with an angle adjuster arranged on the backrest through a transmission shaft.
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| CN201910000541.7A CN109435789B (en) | 2019-01-02 | 2019-01-02 | Control driving system for multi-speed adjustment of electric seat |
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| CN110450683A (en) * | 2019-08-16 | 2019-11-15 | 浙江锐韦机电科技有限公司 | The quickly regulating method of angle regulating device for seat of vehicle |
| CN112841964B (en) * | 2020-12-30 | 2024-04-02 | 佛山市谱德电子科技有限公司 | Control method and system based on electric rocking chair |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6195603B1 (en) * | 1995-08-11 | 2001-02-27 | Lear Corporation | Multiple speed vehicle seat memory control apparatus |
| DE102008032162B3 (en) * | 2008-07-08 | 2009-12-03 | Keiper Gmbh & Co. Kg | seat adjustment |
| CN106470871B (en) * | 2014-04-09 | 2021-11-12 | 创新生物机械解决方案有限责任公司 | Vehicle seating system and method for reducing fatigue using dynamic actuator motion |
| CN203995768U (en) * | 2014-08-01 | 2014-12-10 | 全兴精机股份有限公司 | Controller of electric seat and control system |
| US10351020B2 (en) * | 2016-09-29 | 2019-07-16 | Faurecia Automotive Seating, Llc | Recliner for a vehicle seat |
| CN108973791B (en) * | 2018-07-26 | 2019-11-26 | 延锋安道拓座椅有限公司 | Long track motor driven intelligence control system |
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Effective date of registration: 20200814 Address after: 200235 No. 399, Liuzhou Road, Shanghai, Xuhui District Applicant after: Yanfeng Automotive Trim Systems Co.,Ltd. Address before: 200120, Shanghai, Pudong New Area, Cambridge Town, 451 Bridge Road Applicant before: YANFENG ADIENT SEAT MACHINERY PARTS Co.,Ltd. |
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