CN114194077A - Control method and device for adjusting travel of vehicle seat and vehicle - Google Patents
Control method and device for adjusting travel of vehicle seat and vehicle Download PDFInfo
- Publication number
- CN114194077A CN114194077A CN202111556387.5A CN202111556387A CN114194077A CN 114194077 A CN114194077 A CN 114194077A CN 202111556387 A CN202111556387 A CN 202111556387A CN 114194077 A CN114194077 A CN 114194077A
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- position point
- locked
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- seat
- rotor position
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000000903 blocking effect Effects 0.000 claims abstract description 31
- 230000008569 process Effects 0.000 description 9
- 230000006872 improvement Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
Abstract
The invention discloses a control method for the adjustment travel of a vehicle seat, which comprises the steps of obtaining an expected locked-rotor position point after the calibration of the adjustment travel of the seat is finished; responding to the seat adjusting operation of a user, and collecting a first current locked-rotor position point when a seat motor generates unidirectional locked-rotor along a first adjusting direction; the unidirectional blocking and rotating mechanism comprises a seat motor, a first expected blocking and rotating position point, a second expected blocking and rotating position point, a first blocking and rotating speed sensor, a second blocking and rotating speed sensor, a first motor and a second motor, wherein the unidirectional blocking and rotating speed sensor is arranged at the first expected blocking and rotating position point; calculating a first error value of the first seat adjusting stroke relative to a preset standard seat adjusting stroke; the first seat adjusting stroke is a seat adjusting stroke between a first current locked-rotor position point and a second expected locked-rotor position point; and when the first error value is within the preset error range, updating the first expected locked-rotor position point to be the first current locked-rotor position point. By adopting the embodiment of the invention, the situation that the deviation of the adjusting stroke of the seat is larger can be avoided.
Description
Technical Field
The invention relates to the technical field of vehicle control, in particular to a method and a device for controlling the adjustment stroke of a vehicle seat and a vehicle.
Background
At present, the vehicle intelligence is higher and higher, and the memory calling function based on the seat position is also widely applied. Before the memory of the seat position is called out, the learning of the extreme positions at the two ends of the seat motor is required to be completed. However, after the calibration of the adjustment travel of the seat motor is completed, a large deviation of the subsequently updated adjustment travel occurs.
Disclosure of Invention
The invention provides a control method and a control device for adjusting travel of a vehicle seat and a vehicle, which are used for solving the problem that the adjustment travel of subsequent updating in the prior art has larger deviation.
In order to achieve the above object, an embodiment of the present invention provides a method for controlling an adjustment stroke of a vehicle seat, including:
obtaining expected locked-rotor position points after calibration of the seat adjusting stroke is completed, wherein the expected locked-rotor position points comprise a first expected locked-rotor position point in a first adjusting direction and a second expected locked-rotor position point in a second adjusting direction opposite to the first adjusting direction;
responding to the seat adjusting operation of a user, and collecting a first current locked-rotor position point when the seat motor generates unidirectional locked-rotor along the first adjusting direction; the unidirectional blocking point is blocked and rotated at any middle position point between the first expected blocking and rotating position point and the second expected blocking and rotating position point of the seat motor, and the blocking and rotating times at the same middle position point reach preset times;
calculating a first error value of the first seat adjusting stroke relative to a preset standard seat adjusting stroke; wherein the first seat adjustment travel is a seat adjustment travel between the first current locked rotor position point and the second desired locked rotor position point;
and when the first error value is within a preset error range, updating the first expected locked-rotor position point to be the first current locked-rotor position point.
As an improvement of the above aspect, the method for controlling a vehicle seat adjustment stroke further includes:
when the first error value is not within the preset error range, acquiring a second current locked rotor position point when the seat motor generates the unidirectional locked rotor along the second adjusting direction;
calculating a second error value of the second seat adjustment stroke relative to the preset standard seat adjustment stroke; wherein the second seat adjustment travel is a seat adjustment travel between the second current locked rotor position point and the first desired locked rotor position point;
and when the second error value is within the preset error range, updating the second expected locked-rotor position point to be the second current locked-rotor position point.
As an improvement of the above aspect, the method for controlling a vehicle seat adjustment stroke further includes:
when the second error value is not within the preset error range, calculating a third error value of a third seat adjustment stroke relative to the preset standard seat adjustment stroke; wherein the third seat adjustment travel is a seat adjustment travel between the first current locked rotor position point and the second current locked rotor position point;
and when the third error value is within the preset error range, updating the first expected locked-rotor position point to be the first current locked-rotor position point, and updating the second expected locked-rotor position point to be the second current locked-rotor position point.
As an improvement of the above-mentioned scheme, the one-way locked rotor is that the seat motor is locked rotor at any intermediate position point between the first expected locked rotor position point and the second expected locked rotor position point, and the number of times of locked rotor at the same intermediate position point reaches a preset number of times, including:
when the seat motor is locked at any middle position point between the first expected soft stop position point and the second expected soft stop position point, the preset times are three times;
when the seat motor is locked at any intermediate position point between the first expected soft stop position point and the first expected locked-rotor position point or between the second expected soft stop position point and the second expected locked-rotor position point, the preset times are one;
the first expected soft stop position point is a position point of the first expected locked-rotor position point retracting inwards by a preset distance, and the second expected soft stop position point is a position point of the second expected locked-rotor position point retracting inwards by the preset distance.
As an improvement of the above aspect, the method for controlling a vehicle seat adjustment stroke further includes:
counting pulse signals of the seat motor detected by a Hall sensor from the rotation of the seat motor along one adjusting direction until the seat motor is locked, obtaining the number of Hall pulses, and taking the number of the Hall pulses as a locked-rotor position point in the corresponding adjusting direction;
or counting the current ripple of the seat motor detected by the current sensor from the rotation of the seat motor in one of the adjusting directions until the seat motor is locked, so as to obtain the ripple number, and taking the ripple number as a locked position point in the corresponding adjusting direction.
In order to achieve the above object, an embodiment of the present invention provides a control device for adjusting a travel of a vehicle seat, including:
the expected locked-rotor position point acquisition module is used for acquiring expected locked-rotor position points after calibration of the seat adjusting stroke is completed, wherein the expected locked-rotor position points comprise a first expected locked-rotor position point in a first adjusting direction and a second expected locked-rotor position point in a second adjusting direction opposite to the first adjusting direction;
the first current locked-rotor position point acquisition module is used for responding to seat adjustment operation of a user and acquiring a first current locked-rotor position point when a seat motor generates unidirectional locked-rotor along the first adjustment direction; the unidirectional blocking point is blocked and rotated at any middle position point between the first expected blocking and rotating position point and the second expected blocking and rotating position point of the seat motor, and the blocking and rotating times at the same middle position point reach preset times;
the first error value calculation module is used for calculating a first error value of the first seat adjusting stroke relative to a preset standard seat adjusting stroke; wherein the first seat adjustment travel is a seat adjustment travel between the first current locked rotor position point and the second desired locked rotor position point;
and the first expected locked-rotor position point updating module is used for updating the first expected locked-rotor position point into the first current locked-rotor position point when the first error value is within a preset error range.
As an improvement of the above aspect, the control device for adjusting a stroke of a vehicle seat further includes:
the second current locked-rotor position point acquisition module is used for acquiring a second current locked-rotor position point when the seat motor generates the unidirectional locked-rotor along the second adjustment direction when the first error value is not within the preset error range;
the second error value calculation module is used for calculating a second error value of the second seat adjusting stroke relative to the preset standard seat adjusting stroke; wherein the second seat adjustment travel is a seat adjustment travel between the second current locked rotor position point and the first desired locked rotor position point;
and the second expected locked-rotor position point updating module is used for updating the second expected locked-rotor position point into the second current locked-rotor position point when the second error value is within the preset error range.
As an improvement of the above aspect, the control device for adjusting a stroke of a vehicle seat further includes:
a third error value calculation module, configured to calculate a third error value of a third seat adjustment stroke relative to the preset standard seat adjustment stroke when the second error value is not within the preset error range; wherein the third seat adjustment travel is a seat adjustment travel between the first current locked rotor position point and the second current locked rotor position point;
and the expected locked-rotor position point updating module is used for updating the first expected locked-rotor position point into the first current locked-rotor position point and the second expected locked-rotor position point into the second current locked-rotor position point when the third error value is within the preset error range.
As an improvement of the above-mentioned scheme, the one-way locked rotor is that the seat motor is locked rotor at any intermediate position point between the first expected locked rotor position point and the second expected locked rotor position point, and the number of times of locked rotor at the same intermediate position point reaches a preset number of times, including:
when the seat motor is locked at any middle position point between the first expected soft stop position point and the second expected soft stop position point, the preset times are three times;
when the seat motor is locked at any intermediate position point between the first expected soft stop position point and the first expected locked-rotor position point or between the second expected soft stop position point and the second expected locked-rotor position point, the preset times are one;
the first expected soft stop position point is a position point of the first expected locked-rotor position point retracting inwards by a preset distance, and the second expected soft stop position point is a position point of the second expected locked-rotor position point retracting inwards by the preset distance.
To achieve the above object, an embodiment of the present invention provides a vehicle including: the vehicle body and the control device for adjusting the stroke of the vehicle seat are described.
Compared with the prior art, the method, the device and the vehicle for controlling the adjustment travel of the vehicle seat provided by the embodiment of the invention have the advantages that the first current locked-rotor position point when the seat motor generates unidirectional locked-rotor along the first adjustment direction is acquired in response to the seat adjustment operation of a user, then whether the first error value of the first seat adjustment travel relative to the preset standard seat adjustment travel is within the preset error range is judged, if yes, the first expected locked-rotor position point is updated to be the first current locked-rotor position point, otherwise, the second current locked-rotor position point when the seat motor generates unidirectional locked-rotor along the second adjustment direction is acquired, whether the second expected locked-rotor position point is updated or not is judged according to the second error value of the second seat adjustment travel relative to the preset standard seat adjustment travel, and the third error value of the third seat adjustment travel relative to the preset standard seat adjustment travel is judged, whether the first expected locked-rotor position point and the second expected locked-rotor position point are updated or not is judged, so that the situation that the deviation of the seat adjusting stroke is large is avoided in the self-updating process of the seat adjusting stroke. Therefore, the embodiment of the invention can update the locked-rotor position point in the process of adjusting the seat by the user, and simultaneously avoid the situation of larger deviation of the adjustment stroke of the seat, so that the seat can be operated to the target position, and the user experience is improved.
Drawings
FIG. 1 is a flow chart of a method for controlling the adjustment travel of a vehicle seat according to an embodiment of the present invention;
fig. 2 is a block diagram of a control device for adjusting a travel of a vehicle seat according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of a control method for an adjustment stroke of a vehicle seat according to an embodiment of the present invention, where the control method includes:
s11, obtaining expected locked-rotor position points after the calibration of the seat adjusting stroke is completed, wherein the expected locked-rotor position points comprise a first expected locked-rotor position point in a first adjusting direction and a second expected locked-rotor position point in a second adjusting direction opposite to the first adjusting direction;
s12, responding to the seat adjusting operation of a user, and collecting a first current locked-rotor position point when the seat motor generates unidirectional locked-rotor along the first adjusting direction; the unidirectional blocking point is blocked and rotated at any middle position point between the first expected blocking and rotating position point and the second expected blocking and rotating position point of the seat motor, and the blocking and rotating times at the same middle position point reach preset times;
s13, calculating a first error value of the first seat adjusting stroke relative to a preset standard seat adjusting stroke; wherein the first seat adjustment travel is a seat adjustment travel between the first current locked rotor position point and the second desired locked rotor position point;
and S14, when the first error value is within a preset error range, updating the first expected locked rotor position point to the first current locked rotor position point.
It is understood that, in step S11, the seat adjustment stroke is calibrated to the seat adjustment stroke under ideal conditions, such as when the vehicle is powered off, and after the calibration is completed, the first desired locked-rotation position point a and the second desired locked-rotation position point b are obtained.
Preferably, in step S12, the one-way lock-up is a lock-up of the seat motor at any intermediate position point, and the number of lock-up at the same intermediate position point reaches a preset number, and includes:
when the seat motor is locked at any middle position point between the first expected soft stop position point and the second expected soft stop position point, the preset times are three times;
when the seat motor is locked at any intermediate position point between the first expected soft stop position point and the first expected locked-rotor position point or between the second expected soft stop position point and the second expected locked-rotor position point, the preset times are one;
the first expected soft stop position point is a position point of the first expected locked-rotor position point retracting inwards by a preset distance, and the second expected soft stop position point is a position point of the second expected locked-rotor position point retracting inwards by the preset distance.
It will be appreciated that the seat motor is one-way locked when any one of the following conditions occurs:
the seat motor is locked and rotated three times at the same middle position point between the first expected soft stop position point and the second expected soft stop position point;
the seat motor is locked at any middle position point between the first expected soft stop position point and the first expected locked-rotor position point once;
and the seat motor is locked at any middle position point between the second expected soft stop position point and the second expected locked-rotor position point once.
It can be understood that, above-mentioned stall position point be the mechanical dead point on the seat regulation stroke, can't pass through when the seat motor moves to this point, take place the stall phenomenon, soft stop position point is from the stall position point that corresponds inwards indent dozens of hall pulse numbers or fixed percentage, rotate to soft stop position point when drive seat motor, can reduce the seat shake, user experience is better.
It can be understood that, in the embodiment of the present invention, when the seat adjustment operation of the user is a forward seat adjustment, a first current locked-rotation position point when the seat motor is subjected to unidirectional locked rotation in the forward direction is acquired; when the seat adjusting operation of the user is a reverse adjusting seat, a first current locked-rotor position point when the seat motor generates unidirectional locked-rotor in the reverse direction is collected.
Specifically, in step S13, the calculating a first error value of the first seat adjustment travel relative to a preset standard seat adjustment travel includes:
calculating a first error value by the following equation:
wherein S is1Adjusting the stroke for the first seat, wherein S is a preset standard seat adjusting stroke;
in particular, the first seat adjustment travel S1Adjusting a stroke S for the seat between the first current locked-rotor position point c and the second desired locked-rotor position point b1＝|c-b|。
It is worth to be noted that the preset standard seat adjustment stroke is a design stroke on a physical structure of the seat and can be obtained from a vehicle use specification; preferably, the preset standard seat adjustment stroke is 300 mm.
Preferably, in step S14, the preset error range is ± 10%.
In a preferred embodiment, the control method for adjusting the stroke of the vehicle seat further includes:
when the first error value is not within the preset error range, acquiring a second current locked rotor position point when the seat motor generates the unidirectional locked rotor along the second adjusting direction;
calculating a second error value of the second seat adjustment stroke relative to the preset standard seat adjustment stroke; wherein the second seat adjustment travel is a seat adjustment travel between the second current locked rotor position point and the first desired locked rotor position point;
and when the second error value is within the preset error range, updating the second expected locked-rotor position point to be the second current locked-rotor position point.
Specifically, the calculating a second error value of the second seat adjustment stroke relative to the preset standard seat adjustment stroke includes:
calculating a second error value by the following equation:
wherein S is2Adjusting the stroke for the second seat, wherein S is a preset standard seat adjusting stroke;
in particular, the second seat adjusts the stroke S2Adjusting a stroke S for the seat between the second current locked-rotor position point d and the first desired locked-rotor position point a2＝|d-a|。
In another preferred embodiment, the method for controlling the adjustment stroke of the vehicle seat further includes:
when the second error value is not within the preset error range, calculating a third error value of a third seat adjustment stroke relative to the preset standard seat adjustment stroke; wherein the third seat adjustment travel is a seat adjustment travel between the first current locked rotor position point and the second current locked rotor position point;
and when the third error value is within the preset error range, updating the first expected locked-rotor position point to be the first current locked-rotor position point, and updating the second expected locked-rotor position point to be the second current locked-rotor position point.
Specifically, the calculating a third error value of a third seat adjustment travel relative to the preset standard seat adjustment travel includes:
calculating a third error value by the following equation:
wherein S is3Adjusting the stroke for a third seat, wherein S is a preset standard seat adjusting stroke;
in particular, the third seat adjustment travel S3Adjusting a stroke S for the seat between the first current locked rotor position point c and the second current locked rotor position point d3＝|c-d|。
Illustratively, in the embodiment of the present invention, when the seat adjustment operation of the user is to adjust the seat in the forward direction, a first current locked-rotor position point when the seat motor performs unidirectional locked-rotor in the forward direction is collected, at this time, it is determined that a first error value of a first seat adjustment stroke relative to a preset standard seat adjustment stroke is not within a preset error range, a second current locked-rotor position point when the seat motor performs unidirectional locked-rotor in the reverse direction is continuously collected, and it is determined whether a second error value of a second seat adjustment stroke relative to the preset standard seat adjustment stroke is within the preset error range, if so, the second desired locked-rotor position point is updated to the second current locked-rotor position point;
if not, continuously judging whether a third error value of a third seat adjusting stroke relative to the preset standard seat adjusting stroke is within the preset error range, and if the third error value is within the preset error range, updating the first expected locked-rotor position point to be the first current locked-rotor position point and updating the second expected locked-rotor position point to be the second current locked-rotor position point.
It can be understood that, in the embodiment of the present invention, as long as the vehicle is determined to be powered off, the first current locked rotor position point and the second current locked rotor position point are cleared, otherwise, the first current locked rotor position point when the seat motor generates the unidirectional locked rotor along the first adjustment direction is continuously acquired.
Specifically, the control method for the vehicle seat adjusting stroke further comprises the following steps:
counting pulse signals of the seat motor detected by a Hall sensor from the rotation of the seat motor along one adjusting direction until the seat motor is locked, obtaining the number of Hall pulses, and taking the number of the Hall pulses as a locked-rotor position point in the corresponding adjusting direction;
or counting the current ripple of the seat motor detected by the current sensor from the rotation of the seat motor in one of the adjusting directions until the seat motor is locked, so as to obtain the ripple number, and taking the ripple number as a locked position point in the corresponding adjusting direction.
The method for controlling the adjustment stroke of the vehicle seat, provided by the embodiment of the invention, includes the steps of collecting a first current locked-rotor position point when a seat motor performs unidirectional lock-rotor in a first adjustment direction by responding to a seat adjustment operation of a user, then judging whether a first error value of the adjustment stroke of the first seat relative to a preset standard seat adjustment stroke is within a preset error range, if so, updating the first expected locked-rotor position point to the first current locked-rotor position point, otherwise, collecting a second current locked-rotor position point when the seat motor performs unidirectional lock-rotor in a second adjustment direction, judging whether to update the second expected locked-rotor position point according to a second error value of the adjustment stroke of the second seat relative to the preset standard seat adjustment stroke, and judging whether to update the second expected locked-rotor position point according to a third error value of the adjustment stroke of the third seat relative to the preset standard seat adjustment stroke, whether the first expected locked-rotor position point and the second expected locked-rotor position point are updated or not is judged, so that the situation that the deviation of the seat adjusting stroke is large is avoided while the seat adjusting stroke is updated. Therefore, the embodiment of the invention can update the locked-rotor position point in the process of adjusting the seat by the user, and simultaneously avoid the situation of larger deviation of the adjustment stroke of the seat, so that the seat can be operated to the target position, and the user experience is improved.
Referring to fig. 2, fig. 2 is a block diagram of a control device 20 for adjusting a vehicle seat stroke according to an embodiment of the present invention, where the control device 20 for adjusting a vehicle seat stroke includes:
an expected locked-rotor position point obtaining module 21, configured to obtain an expected locked-rotor position point after calibration of a seat adjustment stroke is completed, where the expected locked-rotor position point includes a first expected locked-rotor position point in a first adjustment direction and a second expected locked-rotor position point in a second adjustment direction opposite to the first adjustment direction;
a first current locked rotor position point acquisition module 22, configured to respond to a seat adjustment operation of a user, and acquire a first current locked rotor position point when a seat motor performs unidirectional locked rotor in the first adjustment direction; the unidirectional blocking point is blocked and rotated at any middle position point between the first expected blocking and rotating position point and the second expected blocking and rotating position point of the seat motor, and the blocking and rotating times at the same middle position point reach preset times;
a first error value calculation module 23, configured to calculate a first error value of the first seat adjustment stroke relative to a preset standard seat adjustment stroke; wherein the first seat adjustment travel is a seat adjustment travel between the first current locked rotor position point and the second desired locked rotor position point;
a first expected locked-rotor position point updating module 24, configured to update the first expected locked-rotor position point to the first current locked-rotor position point when the first error value is within a preset error range.
Preferably, the control device for adjusting a stroke of a vehicle seat further includes:
the second current locked-rotor position point acquisition module is used for acquiring a second current locked-rotor position point when the seat motor generates the unidirectional locked-rotor along the second adjustment direction when the first error value is not within the preset error range;
the second error value calculation module is used for calculating a second error value of the second seat adjusting stroke relative to the preset standard seat adjusting stroke; wherein the second seat adjustment travel is a seat adjustment travel between the second current locked rotor position point and the first desired locked rotor position point;
and the second expected locked-rotor position point updating module is used for updating the second expected locked-rotor position point into the second current locked-rotor position point when the second error value is within the preset error range.
Preferably, the control device for adjusting a stroke of a vehicle seat further includes:
a third error value calculation module, configured to calculate a third error value of a third seat adjustment stroke relative to the preset standard seat adjustment stroke when the second error value is not within the preset error range; wherein the third seat adjustment travel is a seat adjustment travel between the first current locked rotor position point and the second current locked rotor position point;
and the expected locked-rotor position point updating module is used for updating the first expected locked-rotor position point into the first current locked-rotor position point and the second expected locked-rotor position point into the second current locked-rotor position point when the third error value is within the preset error range.
Preferably, the one-way locked-rotor is that the seat motor is locked-rotor at any intermediate position point between the first expected locked-rotor position point and the second expected locked-rotor position point, and the number of times of locked-rotor at the same intermediate position point reaches a preset number of times, including:
when the seat motor is locked at any middle position point between the first expected soft stop position point and the second expected soft stop position point, the preset times are three times;
when the seat motor is locked at any intermediate position point between the first expected soft stop position point and the first expected locked-rotor position point or between the second expected soft stop position point and the second expected locked-rotor position point, the preset times are one;
the first expected soft stop position point is a position point of the first expected locked-rotor position point retracting inwards by a preset distance, and the second expected soft stop position point is a position point of the second expected locked-rotor position point retracting inwards by the preset distance.
Preferably, the control device for adjusting a stroke of a vehicle seat further includes:
the Hall pulse number acquisition module is used for counting pulse signals of the seat motor detected by the Hall sensor from the rotation of the seat motor along one of the adjusting directions until the seat motor is locked, so as to obtain the Hall pulse number, and taking the Hall pulse number as a locked-rotor position point in the corresponding adjusting direction; or the like, or, alternatively,
and the ripple number acquisition module is used for counting current ripples of the seat motor detected by the current sensor from the beginning of the rotation of the seat motor along one of the adjusting directions until the seat motor is locked, so as to obtain a ripple number, and the ripple number is used as a locked-rotor position point in the corresponding adjusting direction.
It should be noted that, as for the working processes of the modules in the control device 20 for adjusting the stroke of the vehicle seat according to the embodiment of the present invention, reference may be made to the working processes of the control method for adjusting the stroke of the vehicle seat according to the above-mentioned embodiment, which are not described herein again.
The control device 20 for adjusting the seat stroke of the vehicle provided in the embodiment of the present invention, by responding to the seat adjusting operation of the user, collects a first current locked-rotation position point when the seat motor performs a unidirectional lock-rotation in the first adjusting direction, then determines whether a first error value of the first seat adjusting stroke relative to a preset standard seat adjusting stroke is within a preset error range, if so, updates the first expected locked-rotation position point to the first current locked-rotation position point, otherwise, collects a second current locked-rotation position point when the seat motor performs the unidirectional lock-rotation in the second adjusting direction, determines whether to update the second expected locked-rotation position point according to a second error value of the second seat adjusting stroke relative to the preset standard seat adjusting stroke, determines whether to update the second expected locked-rotation position point according to a third error value of the third seat adjusting stroke relative to the preset standard seat adjusting stroke, whether the first expected locked-rotor position point and the second expected locked-rotor position point are updated or not is judged, so that the situation that the deviation of the seat adjusting stroke is large is avoided while the seat adjusting stroke is updated. Therefore, the embodiment of the invention can update the locked-rotor position point in the process of adjusting the seat by the user, and simultaneously avoid the situation of larger deviation of the adjustment stroke of the seat, so that the seat can be operated to the target position, and the user experience is improved.
An embodiment of the present invention further provides a vehicle, including: a vehicle body and a control device 20 for adjusting the stroke of the vehicle seat as described in the above embodiment.
For a specific operation process of the control device 20 for adjusting the travel of the vehicle seat, reference may be made to the operation process of the control device 20 for adjusting the travel of the vehicle seat according to the foregoing embodiment, and details are not repeated herein.
In the vehicle provided by the embodiment of the invention, by responding to the seat adjustment operation of a user, a first current locked-rotation position point when the seat motor generates unidirectional locked rotation along the first adjustment direction is acquired, then whether a first error value of a first seat adjustment stroke relative to a preset standard seat adjustment stroke is within a preset error range is judged, if yes, the first expected locked-rotation position point is updated to the first current locked-rotation position point, otherwise, a second current locked-rotation position point when the seat motor generates unidirectional locked rotation along the second adjustment direction is acquired, whether the second expected locked-rotation position point is updated or not is judged according to a second error value of a second seat adjustment stroke relative to the preset standard seat adjustment stroke, and a third error value of a third seat adjustment stroke relative to the preset standard seat adjustment stroke is judged, whether the first expected locked-rotor position point and the second expected locked-rotor position point are updated or not is judged, so that the situation that the deviation of the seat adjusting stroke is large is avoided while the seat adjusting stroke is updated. Therefore, the embodiment of the invention can update the locked-rotor position point in the process of adjusting the seat by the user, and simultaneously avoid the situation of larger deviation of the adjustment stroke of the seat, so that the seat can be operated to the target position, and the user experience is improved.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A control method of a vehicle seat adjustment stroke, characterized by comprising:
obtaining expected locked-rotor position points after calibration of the seat adjusting stroke is completed, wherein the expected locked-rotor position points comprise a first expected locked-rotor position point in a first adjusting direction and a second expected locked-rotor position point in a second adjusting direction opposite to the first adjusting direction;
responding to the seat adjusting operation of a user, and collecting a first current locked-rotor position point when the seat motor generates unidirectional locked-rotor along the first adjusting direction; the unidirectional blocking point is blocked and rotated at any middle position point between the first expected blocking and rotating position point and the second expected blocking and rotating position point of the seat motor, and the blocking and rotating times at the same middle position point reach preset times;
calculating a first error value of the first seat adjusting stroke relative to a preset standard seat adjusting stroke; wherein the first seat adjustment travel is a seat adjustment travel between the first current locked rotor position point and the second desired locked rotor position point;
and when the first error value is within a preset error range, updating the first expected locked-rotor position point to be the first current locked-rotor position point.
2. The control method of a vehicle seat adjustment stroke according to claim 1, characterized by further comprising:
collecting a second current locked-rotor position point when the seat motor generates the unidirectional locked-rotor along the second adjusting direction;
calculating a second error value of the second seat adjustment stroke relative to the preset standard seat adjustment stroke; wherein the second seat adjustment travel is a seat adjustment travel between the second current locked rotor position point and the first desired locked rotor position point;
and when the second error value is within the preset error range, updating the second expected locked-rotor position point to be the second current locked-rotor position point.
3. The control method of a vehicle seat adjustment stroke according to claim 2, characterized by further comprising:
calculating a third error value of a third seat adjustment travel relative to the preset standard seat adjustment travel when neither the first error value nor the second error value is within the preset error range; wherein the third seat adjustment travel is a seat adjustment travel between the first current locked rotor position point and the second current locked rotor position point;
and when the third error value is within the preset error range, updating the first expected locked-rotor position point to be the first current locked-rotor position point, and updating the second expected locked-rotor position point to be the second current locked-rotor position point.
4. The method of controlling a vehicle seat adjustment stroke according to claim 1, wherein the unidirectional lock-up is a lock-up of the seat motor at any intermediate position point between the first desired lock-up position point and the second desired lock-up position point, and the number of lock-up at the same intermediate position point reaches a preset number, and includes:
when the seat motor is locked at any middle position point between the first expected soft stop position point and the second expected soft stop position point, the preset times are three times;
when the seat motor is locked at any intermediate position point between the first expected soft stop position point and the first expected locked-rotor position point or between the second expected soft stop position point and the second expected locked-rotor position point, the preset times are one;
the first expected soft stop position point is a position point of the first expected locked-rotor position point retracting inwards by a preset distance, and the second expected soft stop position point is a position point of the second expected locked-rotor position point retracting inwards by the preset distance.
5. The control method of a vehicle seat adjustment stroke according to claim 1, characterized by further comprising:
counting pulse signals of the seat motor detected by a Hall sensor from the rotation of the seat motor along one adjusting direction until the seat motor is locked, obtaining the number of Hall pulses, and taking the number of the Hall pulses as a locked-rotor position point in the corresponding adjusting direction;
or counting the current ripple of the seat motor detected by the current sensor from the rotation of the seat motor in one of the adjusting directions until the seat motor is locked, so as to obtain the ripple number, and taking the ripple number as a locked position point in the corresponding adjusting direction.
6. A control device for adjusting a stroke of a vehicle seat, comprising:
the expected locked-rotor position point acquisition module is used for acquiring expected locked-rotor position points after calibration of the seat adjusting stroke is completed, wherein the expected locked-rotor position points comprise a first expected locked-rotor position point in a first adjusting direction and a second expected locked-rotor position point in a second adjusting direction opposite to the first adjusting direction;
the first current locked-rotor position point acquisition module is used for responding to seat adjustment operation of a user and acquiring a first current locked-rotor position point when a seat motor generates unidirectional locked-rotor along the first adjustment direction; the unidirectional blocking point is blocked and rotated at any middle position point between the first expected blocking and rotating position point and the second expected blocking and rotating position point of the seat motor, and the blocking and rotating times at the same middle position point reach preset times;
the first error value calculation module is used for calculating a first error value of the first seat adjusting stroke relative to a preset standard seat adjusting stroke; wherein the first seat adjustment travel is a seat adjustment travel between the first current locked rotor position point and the second desired locked rotor position point;
and the first expected locked-rotor position point updating module is used for updating the first expected locked-rotor position point into the first current locked-rotor position point when the first error value is within a preset error range.
7. The vehicle seat adjustment stroke control device according to claim 6, further comprising:
the second current locked-rotor position point acquisition module is used for acquiring a second current locked-rotor position point when the seat motor generates the unidirectional locked-rotor along the second adjustment direction when the first error value is not within the preset error range;
the second error value calculation module is used for calculating a second error value of the second seat adjusting stroke relative to the preset standard seat adjusting stroke; wherein the second seat adjustment travel is a seat adjustment travel between the second current locked rotor position point and the first desired locked rotor position point;
and the second expected locked-rotor position point updating module is used for updating the second expected locked-rotor position point into the second current locked-rotor position point when the second error value is within the preset error range.
8. The vehicle seat adjustment stroke control device according to claim 7, further comprising:
a third error value calculation module, configured to calculate a third error value of a third seat adjustment stroke relative to the preset standard seat adjustment stroke when the second error value is not within the preset error range; wherein the third seat adjustment travel is a seat adjustment travel between the first current locked rotor position point and the second current locked rotor position point;
and the expected locked-rotor position point updating module is used for updating the first expected locked-rotor position point into the first current locked-rotor position point and the second expected locked-rotor position point into the second current locked-rotor position point when the third error value is within the preset error range.
9. The vehicle seat stroke adjustment control device according to claim 6, wherein the unidirectional lock-up is a lock-up of the seat motor at any intermediate position point between the first desired lock-up position point and the second desired lock-up position point, and the number of lock-up at the same intermediate position point reaches a preset number, and includes:
when the seat motor is locked at any middle position point between the first expected soft stop position point and the second expected soft stop position point, the preset times are three times;
when the seat motor is locked at any intermediate position point between the first expected soft stop position point and the first expected locked-rotor position point or between the second expected soft stop position point and the second expected locked-rotor position point, the preset times are one;
the first expected soft stop position point is a position point of the first expected locked-rotor position point retracting inwards by a preset distance, and the second expected soft stop position point is a position point of the second expected locked-rotor position point retracting inwards by the preset distance.
10. A vehicle, characterized by comprising: a vehicle body and a control device for adjusting the travel of a vehicle seat as claimed in claim 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111556387.5A CN114194077B (en) | 2021-12-17 | 2021-12-17 | Control method and device for adjusting travel of vehicle seat and vehicle |
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| CN202111556387.5A CN114194077B (en) | 2021-12-17 | 2021-12-17 | Control method and device for adjusting travel of vehicle seat and vehicle |
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| CN114194077B CN114194077B (en) | 2023-03-31 |
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| CN114194077B (en) | 2023-03-31 |
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