JPH0419239A - Motor-driven seat device - Google Patents

Abstract

PURPOSE:To enable the recognition of a trouble by detecting the state of relays, operated by the operation of a manual operating means so as to switch power supply to motors, when these relays are short-circuit destructed, and emitting a warning and also controlling the motors according to the state of the relays. CONSTITUTION:There are provided relays 9, 10 operated by the operation of a manual operating means 8 or by a preset storage means 6 so as to switch power supply to motors 3-5. When these relays 9, 10 are deposited by short- circuit destruction, the deposited state of the respective relays 9, 10 is detected so as to emit a warning by a warning means 11. At the same time, the respective motors 3-5 are controlled by control mechanism 12 according to the deposited state of the respective relays 9, 10. This enables a driver to recognize the trouble of device more easily and also prevents the device from being left in the dead state when the trouble is generated.

Description

[Detailed description of the invention] [Purpose of the invention]

(Industrial Application Field) The present invention stores a plurality of motion data in, for example, a car, and performs seat slide, lift, and recline for each driver based on the motion data stored in accordance with a predetermined preset operation. This invention relates to an electric seat device used to adjust the seat. (Prior art) Conventionally, the above electric seat device was developed in June 1986.
Published by Nissan Memosha Co., Ltd. Service bulletin No. 578
There is an electric seat device disclosed in No. E-PY31 Model Vehicle Introduction, and FIG. 4 shows the electric seat device described in the above publication. That is, in the illustrated electric seat device, only the sliding motor portion of the motors that slide, lift, and recline the seat is shown. This slide motor 101 has movable contacts rl, + of a relay RL connected to a motor power supply terminal 101a on one end side, and normally open side fixed contacts ri, - of the relay RL.
2 includes a power supply 50 and a relay coil r1 of relay RL1.
is connected. Then, the normally open side fixed contact r11 + of the relay RL1
3 is connected to the ground, the emitter of the transistor Tr1 is connected to the ground, and the emitter of the transistor Tr1 is connected to the ground.
A trigger baud (102a) provided in the controller 102 is connected to the base of the rl. The sliding motor 101 also has a movable contact r of a relay RL2 connected to the motor power terminal 101b on the other end side.
The power supply 50 and the relay coil r12 of the relay RL2 are connected to the normally closed side fixed contact rIL2-2 of the relay RL2. Further, the relay coil r12 of the relay RL2 is connected to the fixed contact 5W2-2 of the rear movement manual switch SW2, which has a movable contact 5W2- connected to the ground, and a boat 102C provided in the controller 102. The collector of the transistor Tr2 is connected to the collector of the transistor Tr2. Furthermore, normally open side fixed contact rJL2- of relay RL2
3 is connected to the ground, the emitter of the transistor Tr2 is connected to the ground, and the emitter of the transistor Tr2 is connected to the ground.
A trigger port 102d provided in the controller 102 is connected to the base of the controller 102. The controller 102 is equipped with a microcomputer to which signals are input and output from a storage operating keyboard (not shown) via an input/output interface circuit. Here, when storing the slide position suitable for the driver, after performing the memorization operation on the memorization operation keyboard, the slide motor 101 is turned on by turning on the front movement manual switch SW1 or the rear movement manual switch SW2. The slide motor 101 is stopped at a slide position suitable for the driver by driving the slide motor 101 toward the front or rear side. Then, by setting the memory operation keyboard in this state, the microcomputer counts the number of rotations (pulses) of the slide motor 101 from the current position and detects the amount of positional fluctuation. The slide position is memorized by the number of rotations. As a result, the slide motor 101 is memory-driven to the slide position stored by the microcomputer by positioning the storage operation keyboard. When the front movement manual switch SW1 or the rear movement manual switch SW2 is turned on while the slide motor 101 is memory-driven, the microcomputer side The output of the manual switches swl and sw2 is prioritized by stopping the output of the manual switches swl and sw2. (Problem to be Solved by the Invention) However, in the above-described conventional electric seat device, for example, one of the relays RL causes short-circuit damage and the normally open side fixed contact rls-3 is connected to the movable contact rJ2. -1 is welded, the structure is such that the slide motor 101 is driven to the front side regardless of the switching of the front movement manual switch SW1. In this case, the slide motor 101 is short-circuited and stopped by supplying rear drive power to the slide motor 101 by turning on the rear movement manual switch SW2. Furthermore, if the rear movement manual switch SW2 is turned off in this state, the slide motor 101 will be driven to the front side again, which poses the problem of making it difficult for the driver to recognize a problem with the device. The challenge was to solve the problems. (Purpose of the Invention) Therefore, the present invention was made in view of the above-mentioned conventional problems, and by detecting that the relay has broken the seat and issuing a warning, the driver is prevented from having trouble with the device. It is an object of the present invention to provide an electric seat device that recognizes this and controls a motor in response to short-circuit failure of a relay.

[Structure of the invention]

(Means for Solving the Problems) An electric seat device according to the present invention includes motors for sliding, lifting, and reclining the seat, and a preset memory that stores a plurality of operation data of the motors in response to a predetermined preset operation. means, a drive means for memory-driving the motor based on the operation data stored in the glycerate storage means, a manual operation means for manually driving the motor, and a drive means for driving the motor manually, and a drive means for driving the motor manually based on the operation data stored in the glycerate storage means; and a control mechanism that detects the state of the relay when the relay is short-circuited and issues a warning using a warning means, and controls the motor according to the state of the relay. The present invention is characterized by having a configuration including the above, and is a means for solving the conventional problems with the configuration of the electric seat device described above. (Operation of the Invention) According to the electric seat device according to the present invention, when the relay that switches the power to the motor is short-circuited,
The control mechanism detects the state of the relay, the warning means issues a warning, and the motor is controlled according to the state of the relay, so that the driver can easily recognize troubles in the device. . (Embodiment) The following two electric seat devices according to an embodiment of the present invention will be described below.
This will be explained based on the figures. That is, the illustrated electric seat device 1 has the seat 2
Motors 3, 4.5 for sliding, lifting, and reclining the seat 2 are provided, and each of the motors 3, 4.5
Preset storage means 6 is provided for storing a plurality of pieces of operation data in response to a predetermined preset operation. Further, the electric seat device M1 is configured to operate each motor 3,
A driving means 7 for memory-driving the motors 4.5 is provided, and a manual operating means 8 is provided for manually driving each of the motors 3, 4.5. Then, each of the motors 3, 4.5 is operated by the operation of the manual operation means 8 or the preset storage means 6.
Relays 9 and 10 are provided to switch the power to the
When each of the relays 9 and 10 is welded due to short-circuit damage, the welded state of each of the relays 9 and 10 is detected and a warning is issued by the warning means 11, and the welded state of each of the relays 9 and 10 is detected. A control mechanism 12 having a timer for controlling each motor 3.4.5 is provided. FIG. 2 is a circuit explanatory diagram of the slide motor 3 portion of each of the motors 3, 4.5, and the lift motor 4.
Since the reclining motor 5 also has the same circuit configuration as that in FIG. 2, it is omitted here. A movable contact 9a of a relay 9 is connected to a power terminal 3a at one end of the slide motor 3, and a power supply 50 and a relay coil 9C of the relay 9 are connected to a normally closed fixed contact 9b of the relay 9. It is. In addition, a diode D is connected to the relay coil 9c of the relay 9.
A fixed contact 5W3-2 of a front moving manual switch SW3 (manual operation means 8) having a movable contact SW, connected to ground through a terminal 1, is connected to the fixed contact 5W3-2, and the collector of a transistor Tr3 is also connected.
The front manual input port 1 provided in the control mechanism 12 is connected to the connection point between the diode D and the fixed contact 5W3-2.
2a is connected. The normally open side fixed contact 9d of the relay 9 is connected to ground, the emitter of the transistor Tr3 is connected to the ground, and the base of the transistor Tr3 is connected to the front side of the control mechanism 12. The output capo) 12b is connected. Furthermore, a movable contact 10a of a relay 10 is connected to a power terminal 3b at the other end of the slide motor 3.
The normally closed side fixed contact 10b of the relay 10 is connected to the power supply and the relay 1.
0 relay coil 10c is connected. Furthermore, in the relay coil IQc of the relay 10,
Movable contact 5W connected to ground via diode D2
Rear movement manual switch SW4 equipped with 4-1
The fixed contact 5W4-2 (manual drive means) is connected to the collector of the transistor Tra, and the connection point between the diode D2 and the fixed contact 5W4-2 is connected to the rear manual drive provided in the control mechanism 12. The input capo) 12c is connected. Furthermore, the normally open side fixed contact 10d of the relay 10 is connected to the ground, the emitter of the transistor Tr is connected to the ground, and the base of the transistor Tr4 is connected to the rear detection cap of the control mechanism 12. -) 12d is connected. The control mechanism 12 is configured such that a signal from the preset storage means 6 is inputted to the microcomputer via an input/output interface circuit (not shown), and a signal is inputted to the microcomputer through an input/output interface circuit (not shown). A signal for memory driving the slide motor 3 is input. Further, the control mechanism 12 includes each of the boats 12a, 12b.
, 12c, and 12d, there is also a sensor input port 12e for inputting data detected by a rotation sensor 13 for detecting rotation pulses of the slide motor 3, and a warning for activating the warning means 11 via a transistor Tr5. A warning output port 12f is provided to output a warning signal. Here, when storing the slide position suitable for the driver, after the preset storage means 6 has been memorized, the front movement manual switch SW3 or the rear movement manual switch SW4 is turned on, so that the relay 9 or the relay 10 to drive the slide motor 3 to the front side or rear side,
Slide motor 3 at a slide position suitable for the driver.
to stop. Then, by performing a setting operation on the preset storage means 6 in this state, the slide position is stored in the preset storage means 6. Thereby, by positioning the preset storage means 6, the slide motor 3 is memory-driven to the stored slide position. At this time, when each movable contact 9a or 10a of the relay 9 or 10 is welded to each normally open fixed contact 9d or 10d due to short-circuit breakdown, the control mechanism 12 executes the control shown in FIG. be done. That is, the program is started with a power source (not shown) connected, and in step 2 3GG, the control mechanism 12 determines whether or not the slide motor 3 is driving the memory. At step 300, it is determined that the memory is not being driven, and at step 302, the slide motor 3
It is determined whether or not the vehicle is being driven manually. If it is determined in step 302 that the vehicle is being driven manually (YES), the process moves to step 301, and if it is determined that the vehicle is not being driven manually in step 302, the next step is performed. The process moves to step 303. In step 301, the pulse counts A, B, and C of the slide motor 3 are cleared, and the process moves to step 304, where coasting check=1 is processed. Further, in step 303, the rotation sensor 13 determines whether the pulse count A≧N (predetermined times) of the slide motor 3, and in this step 303, it is determined that the pulse count A≧N (YES). When it is determined, the process moves to step 305 and pulse callan)
If it is determined that A≧N is not (NO), step 3
Move to 06. In step 306, it is determined whether the coasting check is 1 or not, and in this step 306, the coasting check is
If it is determined that it is 1 (YES), step 30
If it is determined that the coasting check is not 1 (No), the process moves to the next step 308. In step 308, it is determined whether or not there is a pulse change within a predetermined time. If it is determined in step 308 that there is a pulse change within a predetermined time (YES), in step 309, the pulse count (A) is incremented ( inc) and returns to the first step 300, and if it is determined in this step 308 that there is no pulse change within a predetermined time (NO), the process returns to step 31.
At 0, the pulse count A is cleared and the process returns to the first step 300. Further, in step 306, it is determined that the coasting check is 1, and in step 307, it is determined whether or not the motor coasting timer (timer) is below.
If it is determined in this step 307 that the motor coasting timer is less than or equal to the motor coasting timer (YES), the motor coasting timer is incremented (inc) in step 311 and the process returns to the first step 300.
If it is determined in step 312 that the motor coasting timer is not below the motor coasting timer (NO), the motor coasting timer is cleared in step 312 and the process moves to the next step 313. Then, in step 313, coasting check 20 is processed and the process moves to the first step 300. In the step 303, it is determined that the pulse count A≧N, and in step 305, it is determined whether or not a stop recognition timer (timer) has elapsed.
When it is determined in this step 305 that the stop recognition timer has elapsed (YES), the process moves to step 314, and when it is determined that the stop recognition timer has not elapsed (No) in this step 305, the process moves to the next step 315. do. In this step 315, it is determined whether or not the forward rotation check of the slide motor 3 has been completed, and in step 315, it is determined that the forward rotation check of the slide motor 3 has been completed (YES). When it is determined that the rotation of the slide motor 3 in the forward direction has not been completed (No), the process proceeds to step 317. Then, in step 317, the rotation sensor 13 detects the pulse count of the slide motor 3 B≧N (predetermined times).
If it is determined in this step 317 that the pulse count B of the slide motor 3 is ≧N (YES), the process moves to step 318 and the slide motor 3 is corrected in step 318. When it is determined in step 317 that the pulse count of the slide motor 3 is not ≧N (NO), the process moves to step 319 and the process proceeds to step 3.
At step 19, the power of the forward direction side of the slide motor 3 is turned on. In step 319, the power on the forward side of the slide motor 3 is turned on, and the process moves to step 320, where the rotation sensor 13 determines whether or not there is a change in the pulse of the slide motor 3. Then, in step 320, there is a change in the pulse (
If it is determined as YES), the process moves to step 321 and the pulse callan)B is incremented)(inc)L.
, in step 320 there is no change in the pulse (N
O), the process moves to step 322, where the stop recognition timer (timer) is incremented (inc), and the process returns to the first step 300. Further, in the step 321, the pulse count B is incremented (inc), and the process moves to step 322. Drive the slide motor 3 to the forward end in the stay and block 318 and move on to the next step 323,
In this step 323, the power on the forward side of the slide motor 3 is turned off, and the process moves to step 324. Then, in step 324, the pulse count B of the slide motor 3 is cleared and the process moves to the next step 325, and in this step 325, the stop recognition timer (
timer) and returns to the first step 300. In step 315, it is determined that the rotation check of the slide motor 3 in the forward direction has been completed, and in step 316, it is determined whether or not the rotation check of the slide motor 3 in the reverse direction has been completed. If it is determined in this step 316 that the check for the rotation of the slide motor 3 in the reverse direction has been completed (YES), the process moves to step 326, and in step 316, the check for the rotation of the slide motor 3 in the reverse direction is completed. If it is determined that the process has not been completed (NO), the process moves to the next step 327. In step 316, it is determined that the rotation check of the slide motor 3 in the opposite direction has not been completed, and in step 327, the pulse count B≧N (predetermined times)
If it is determined in this step 327 that the pulse count B≧N is (YES), the process moves to step 328, and in step 328, a check is made to rotate the slide motor 3 in the opposite direction. Then, in step 327, the pulse count B≧N
Otherwise (NO), step 32
At step 9, the power supply of the slide motor 3 in the opposite direction is turned on, and the process moves to the next step 330. Then, in step 330, it is determined whether or not there is a change in the pulse of the slide motor 3.
If it is determined in step 30 that there is a change in the pulse (YES), the process moves to step 331, and this step 3
31, pulse count B is incremented (in
c) Then, the process moves to step 332, and when it is determined in step 330 that there is no change in the pulse (No), the process moves to the next step 332, and this step 332
Increment the stop recognition timer (timer) at (
inc) and returns to the first step 300. Further, in step 328, the slide motor 3
After completing the check for rotation in the opposite direction, the process moves to step 333. In this step 333, the power on the reverse side of the slide motor 3 is turned off, and the process moves to the next step 334. In step 334, the slide motor 3 is turned off. Clear pulse count B. Then, in step 334, the pulse count B of the slide motor 3 is cleared, and the process moves to step 335. In step 335, the stop recognition timer (timer) is incremented (inc), and the process returns to the first step 300. In step 326, the slide motor 3 is
On the other hand, the power supplies in both directions are turned on, and the process moves to the next step 336. In step 336, the warning means 11 issues a warning for welding in both directions. Further, in step 305, it is determined that the stop recognition timer has elapsed, and the process proceeds to step 314, where it is determined by the rotation sensor 13 whether the pulse count of the slide motor 3 is C≧N (predetermined number of times). , in this step 3]4, pulse count C≧N (
i'ES), the output to the slide motor 3 is turned off at the stave 737, and when it is determined in step 314 that the pulse count C≧N (No), the process moves to the next step 338. Then, in step 338, it is determined whether the pulse change has occurred within a predetermined time.
When it is determined that there is a pulse change within a predetermined time (YES), the process moves to step 339, and in step 338, it is determined that there is no pulse change within a predetermined time (No).
), the process moves to the next step 340. In step 339, the pulse count C is incremented (inc), and the process proceeds to step 341. In step 340, the pulse count C is cleared, and the process proceeds to step 341. In step 341, it is determined whether or not the output of the slide motor 3 is in the forward direction. When it is determined in step 341 that the output is in the forward direction (YES), the process moves to step 342, and in step 341, the output is in the forward direction. If it is determined that it is not (NO), step 34
Move to 3. Then, in step 342, the warning means 11 issues a warning for welding in the opposite direction, and the first step 300
to return to. Further, in step 343, it is determined whether or not the output of the slide motor 3 is in the reverse direction. When it is determined in step 343 that the output is in the reverse direction (YES), the process moves to the next step 344, and this step 343 When it is determined that the output is not in the reverse direction (No), the process returns to the first step 300. In step 344, the relay 10 for supplying power in the forward direction of the slide motor 3 is welded, and the warning means 11 issues a forward welding warning.
Returns to 00. In the step 337, the output to the slide motor 3 is turned off, the process proceeds to step 345, the pulse count C is cleared, and the process proceeds to the next step 346. Then, in step 346, since the welding is released, the normal state is set and the process returns to the first step 300. That is, when the relay 9 or relay 10 for power supply on the forward or reverse side of the slide motor 3 is welded due to short-circuit breakage, a signal is sent to the non-welded side of these relays 9 or 10. By detecting welding, a warning is given by the warning means 11, and when the welding is released, the slide motor 3 is controlled in a normal state.

【Effect of the invention】

As described above, the electric seat device according to the present invention includes motors for sliding, lifting, and reclining the seat, and a preset storage means for storing a plurality of operation data of the motors in response to a predetermined preset operation. , drive means for memory-driving the motor based on the operation data stored in the preset storage means;
A manual operating means for manually driving the motor; a relay that is actuated by operation of the manual operating means to switch power to the motor; and detecting the state of the relay when the relay is short-circuited. The configuration is equipped with a control mechanism that issues a warning using a warning means and controls the motor according to the status of the relay, making it easier for the driver to recognize troubles with the device, and also prevents the driver from responding to short circuits in the relay. Since the motor is controlled, it has the excellent effect of not remaining stationary even when trouble occurs.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an electric seat device according to an embodiment of the present invention, FIG. 2 is a circuit configuration diagram around the slide motor in the electric seat device shown in FIG. 1, and FIG. Flowchart explaining the control operation by the control mechanism in the electric seat device shown in FIG.
The figure is a circuit diagram of a sliding motor portion of a conventional electric seat device. DESCRIPTION OF SYMBOLS 1... Electric seat device, 2... Seat, 3... Slide motor, 4... Lift motor, 5... Reclining motor, 6... Preset storage means, 7... - Drive means, 8... Manual operation means, 0... Relay 1... Warning means, 2... Control mechanism.

Claims (1)

[Claims] (1) Each motor that slides, lifts, and reclines the seat, a preset storage means that stores a plurality of operation data of the motor in response to a predetermined preset operation, and an operation data stored in the preset storage means. a drive means for memory-driving the motor based on memory; a manual operation means for manually driving the motor; a relay that is actuated by operation of the manual operation means to switch power to the motor; 1. An electric seat device comprising: a control mechanism that detects the state of the relay when the vehicle is running, issues a warning using a warning means, and controls a motor according to the state of the relay.