CN101315413B - Fault detection apparatus for power-operated door open and close switch - Google Patents
Fault detection apparatus for power-operated door open and close switch Download PDFInfo
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- CN101315413B CN101315413B CN 200810108629 CN200810108629A CN101315413B CN 101315413 B CN101315413 B CN 101315413B CN 200810108629 CN200810108629 CN 200810108629 CN 200810108629 A CN200810108629 A CN 200810108629A CN 101315413 B CN101315413 B CN 101315413B
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Abstract
The invention provides a malfunction detection device of an automatic door operable switch. A malfunction detection device of a switch that detects the malfunction of a switch of a contact point for connection during a connection operation and non-connection during a disconnection operation is characterized by that the malfunction detection device of the switch is provided with a voltage supply control unit that supplies a voltage of a high level and a voltage of a low level between the contact point of the switch periodically when diagnosing the malfunction of the switch; and a malfunction detection unit that detects a contact voltage of the switch when the voltage is supplied from the voltage supply control unit to the switch, and detects the malfunction of the contact point of the switch according to the detected contact voltage.
Description
Technical field
The present invention relates to the failure detector of the power-operated door open and close switch that a kind of diagnosing malfunction of door on-off switch of the switching to the indication automatically-controlled door detects.
Background technology
TOHKEMY 2005-139657 discloses indicating the door of opening car door to open the technology of the diagnosing malfunction detection of switch by driving electro-motor.In this technology, adopt following structure: be not to carry out all the time the fault diagnosis that door is opened switch, but only the opening and closing operations of carrying out door namely door open in the lower situation of the possibility of operation of switch, for example under the speed of a motor vehicle is situation or the situation of vehicle in parking more than the N km/h, can carry out fault diagnosis.
Summary of the invention
The problem that invention will solve
In above-mentioned technology, can't assert that the passenger is that N km/h does not carry out the operation that door is opened switch when above really in the speed of a motor vehicle, also can't get rid of the possibility of passenger's faulty operation.In this case, may carry out error diagnosis.
On the other hand, in the situation that vehicle is travelling with the speed of a motor vehicle below the N km/h, can't carry out fault diagnosis.Thereby, to open between the contact of switch be not the situation of the such fault of complete off-state to door, the non-on-state between contact is because unstable and sometimes become in the situation of the such fault that repeats astatically the such discontinuity of non-on-state and on-state of the situation of on-state when having connected door and open switch, owing to limit the environment (speed of a motor vehicle is more than the N km/h or in stopping) that to carry out fault diagnosis, therefore when tracing trouble, may detect the normal state that is in.In this case, cause producing the problem of the fault that is difficult to detect discontinuity.
The present invention In view of the foregoing finishes, and its purpose is to provide a kind of failure detector of power-operated door open and close switch of the fault diagnosis that can carry out continuously when needed all the time on-off switch.
Solution plan is wanted in invention
A failure detector that mode is a kind of switch of the present invention, connect having when having carried out connecting (ON) operation, the fault of the switch of disconnected contact detects when having carried out disconnecting (OFF) operation, the failure detector of this switch has: voltage provides control module, it is when the fault of the above-mentioned switch of diagnosis, periodically to the voltage that high level is provided between the contact of above-mentioned switch and low level voltage; And fault detection unit, it detects the contact voltage of this switch when providing control module to provide voltage to above-mentioned switch from above-mentioned voltage, detect the fault of the contact of this switch according to detected contact voltage.
Alternate manner of the present invention is a kind of failure detector of switch, connect having when having carried out making operation, the fault of the switch of disconnected contact detects when having carried out opening operation, the failure detector of this switch has fault detection unit, this fault detection unit detects the contact voltage of above-mentioned switch by the voltage drop unit, there is the fault of the relation between the non-fault to judge corresponding diagram with reference to this contact voltage of expression and above-mentioned switch, detects the fault of the contact of above-mentioned switch according to its reference results.
Other mode of the present invention is a kind of fault detection method of switch, connect having when having carried out making operation, the fault of the switch of disconnected contact detects when having carried out opening operation, in the fault detection method of this switch, when the fault of the above-mentioned switch of diagnosis, periodically to the voltage that high level is provided between the contact of above-mentioned switch and low level voltage, at the contact voltage that when above-mentioned switch provides voltage, detects this switch, detect the fault of the contact of this switch according to detected contact voltage.
Other mode of the present invention is a kind of fault detection method of switch, connect having when having carried out making operation, the fault of the switch of disconnected contact detects when having carried out opening operation, in the fault detection method of this switch, detect the contact voltage of above-mentioned switch by the voltage drop unit, there is the fault of the relation between the non-fault to judge corresponding diagram with reference to this contact voltage of expression and above-mentioned switch, detects the fault of the contact of above-mentioned switch according to its reference results.
Description of drawings
Fig. 1 is the figure of structure of the failure detector of the related power-operated door open and close switch of expression embodiments of the invention 1.
Fig. 2 is the sequential chart of the variation of the related various amounts of expression embodiments of the invention 1.
Fig. 3 is the figure of structure of the failure detector of the related power-operated door open and close switch of expression embodiments of the invention 2.
Fig. 4 is the figure of the inner structure of expression failure detector shown in Figure 3.
Fig. 5 is the figure that is illustrated in the fault judgement corresponding diagram when implementing fault diagnosis among the embodiment 2.
Embodiment
Below, illustrate be used to the embodiment that implements the best of the present invention with accompanying drawing.
(embodiment 1)
Failure detector 1 diagnosis of embodiment 1 shown in Figure 1 and the fault of detecting gate on-off switch 3, wherein, 3 pairs of described door on-off switches come the opening/closing of the automatically-controlled door (not shown) of opening/closing to indicate by door CD-ROM drive motor 2.Failure detector 1 is brought into play function as the control axis of controlling this fault diagnosis, for example possess microcomputer and door on-off switch power supply relay 11, wherein, described microcomputer possesses and controls the resources such as the required CPU of computing machine that exercises process, memory storage, input-output unit according to program.
Door on-off switch power supply relay 11 is connected to an end of relay tip 12 on the power supply 4 (for example also can be the vehicle power that is loaded on the vehicle), the other end is by resistance 13 ground connection, and the other end is provided the current potential of high level when the relay tip 12 that connected (connection).Optionally an end of the drive coil 14 of on/off relay tip 12 is connected on the power supply 4, the other end is connected on the on-off element 15, come on/off switch element 15 according to switching signal, electric current optionally is provided and controls to drive coil 14 thus, drive coil 14 is by excitation optionally, at drive coil 14 engage relay contact 12 during by excitation.Door on-off switch power supply relay 11 is connected to the tie point between its relay tip 12 and the resistance on the on-off switch 3.
Door on-off switch power supply relay 11 is only when the fault detect action of carrying out an on-off switch 3, switching signal according to the pulse type in predefined cycle is come on-off element 15 is carried out switching controls, and accordingly drive coil 14 is optionally driven control with this switching, thereby periodically the on/off relay tip 12, and power supply 4 optionally is connected and controls with a door on-off switch 3.In addition, also can realize the function identical with door on-off switch power supply relay 11 by the circuit that the combined semiconductor element consists of.
Door on-off switch 3 is made of the switch of SPDT (single-pole double-throw (SPDT)) type, when connect (connections) when upper to a contact S1 corresponding door be opened, on the other hand, when be connected to another contact S2 upward the time door be closed.Door on-off switch 3 is connected to failure detector 1 with an one contact S1 and another contact S2, on connection line, be connected with respectively pull-up resistor 16a, 16b, the voltage of contact S1 is provided for failure detector 1 as the first on-off switch input voltage, and the voltage of contact S2 is provided for failure detector 1 as the second on-off switch input voltage.Door on-off switch 3 is connected to and drives on relay 5a, the 5b.
By door on-off switch 3 being operatively connected on contact S1 or the contact S2, the motor current direction that driving relay 5a, 5b change offer a CD-ROM drive motor 2 makes the rotation direction forward or reverse of a CD-ROM drive motor 2, thereby opens or closes door.
The electric current that driving relay 5a is connected to a CD-ROM drive motor 2 provides on the end, a relay tip S1 is connected to failure detector 1, another relay tip S2 is connected to power supply 4, to relay tip S1, the end that S2 drives the drive coil 6a of control is connected to the contact S1 of an on-off switch 3, the other end is connected to failure detector 1, thereby do not provide to drive coil 6a from power supply 4 electric current drive relay 5a not by the situation of excitation under, drive relay 5a and be connected contact S1, on the other hand, when actuating doors on-off switch 3, form the current path of drive coil 6a by trouble-shooter 1, provide electric current from power supply 4 to drive coil 6a and by excitation, driving relay 5a is connected on the contact S2.
Another electric current that driving relay 5b is connected a CD-ROM drive motor 2 provides on the end, a relay tip S1 is connected to failure detector 1 with the contact S1 that drives relay 5a, another relay tip S2 is connected to power supply 4, to relay tip S1, the end that S2 drives the drive coil 6b of control is connected to the contact S2 of an on-off switch 3, the other end is connected to failure detector 1, thereby do not provide to drive coil 6b from power supply 4 electric current drive relay 5b not by the situation of excitation under, drive relay 5b and be connected contact S1, on the other hand, when actuating doors on-off switch 3, form the current path of drive coil 6b by trouble-shooter 1, thereby provide electric current by excitation from power supply 4 to drive coil 6b, driving relay 5b is connected on the contact S2.
In this structure, when carrying out common action, door on-off switch power supply relay 11 is in on-state, door on-off switch power supply relay 11 by on-state provides electric current from power supply 4 to door on-off switch 3, be connected on the contact S1 and an indication when opening at door on-off switch 3, by door on-off switch 3, thereby the drive coil 6a that drives relay 5a is made driving relay 5a be connected to contact S2 by excitation, by driving relay 5a, door CD-ROM drive motor 2, drive relay 5b, the path of failure detector 1 provides electric current from power supply 4 to door CD-ROM drive motor 2.Thus, door CD-ROM drive motor 2 is driven by forward, and door is opened.
On the other hand, be connected on the contact S2 and an indication when closing at door on-off switch 3, by door on-off switch 3, thereby the drive coil 6b that drives relay 5b is made driving relay 5b be connected to contact S2 by excitation, provides electric current from power supply 4 to door CD-ROM drive motor 2 by the path that drives relay 5b, door CD-ROM drive motor 2, driving relay 5a, failure detector 1.Thus, opposite house CD-ROM drive motor 2 driving of reversing, door is closed.
Action when the sequential chart during below with reference to the detection failure of Fig. 2 illustrates the fault of detecting gate on-off switch 3.
At first, when beginning the fault detect of door on-off switch 3,15 provide switching signal from failure detector 1 to on-off element, and periodically the on/off switch element 15.Thus, electric current optionally is provided and controls to the drive coil 14 of door on-off switch power supply relay 11, thereby the relay tip 12 of door on-off switch power supply relay 11 is periodically switched on/disconnects as shown in Figure 2.
Then, the first on-off switch input voltage from contact S2 to failure detector 1 that provide from the contact S1 of door on-off switch 3 and and the second on-off switch input voltage are sampled and observe.This sampling period shown in Fig. 2 (switch detects regularly) was compared with the cycle of the relay tip 12 of on/off door on-off switch power supply relay 11, was set to the short cycle.
In this state, for example as shown in Figure 2, thereby in actuating doors on-off switch 3 situation of contact S1 of an on-off switch 3 that connected (connections), when thereby the relay tip 12 of connecting door on-off switch power supply relay 11 has connected power supply 4 with door on-off switch 3 via relay tip 12, the first on-off switch input voltage becomes high level, thereby when relay tip 12 deenergizations 4 that disconnect door on-off switch power supply relay 11 and door on-off switch 3, if the first on-off switch input voltage becomes low level, the contact S1 that then is diagnosed as in the on-off switch 3 is normal.
In addition, thereby in actuating doors on-off switch 3 situation of contact S2 of an on-off switch 3 that connected (connections), when thereby the relay tip 12 of connecting door on-off switch power supply relay 11 has connected power supply 4 with door on-off switch 3 via relay tip 12, the second on-off switch input voltage becomes high level, thereby when relay tip 12 deenergizations 4 that disconnect door on-off switch power supply relay 11 and door on-off switch 3, if the second on-off switch input voltage becomes low level, the contact S2 that then is diagnosed as in the on-off switch 3 is normal.
On the other hand, thereby in actuating doors on-off switch 3 situation of contact S1 of an on-off switch 3 that connected (connections), when thereby the relay tip 12 of connecting door on-off switch power supply relay 11 has connected power supply 4 with door on-off switch 3 via relay tip 12, the first on-off switch input voltage becomes high level, thereby when relay tip 12 deenergizations 4 that disconnect door on-off switch power supply relay 11 and door on-off switch 3, under detecting the situation that the first on-off switch input voltage is the current potential that detected low level is high when normal, there is the snotter of the resistance value with foreign matter etc. in the contact S1 place that is estimated as at door on-off switch 3, and the contact S1 place that is judged as at door on-off switch 3 has produced short trouble.
In addition, thereby in actuating doors on-off switch 3 situation of contact S2 of an on-off switch 3 that connected (connections), when thereby the relay tip 12 of connecting door on-off switch power supply relay 11 has connected power supply 4 with door on-off switch 3 via relay tip 12, the second on-off switch input voltage becomes high level, thereby when relay tip 12 deenergizations 4 that disconnect door on-off switch power supply relay 11 and door on-off switch 3, under detecting the situation that the second on-off switch input voltage is the current potential that detected low level is high when normal, there is the snotter of the resistance value with foreign matter etc. in the contact S2 place that is estimated as at door on-off switch 3, and the contact S2 place that is judged as at door on-off switch 3 has produced short trouble.
Detecting in the out of order situation, the inner cut-out of failure detector 1 from drive coil 6a, 6b to failure detector 1 current path, perhaps in the inner cut-out of failure detector 1 from driving relay 5a, 5b to the current path of failure detector 1.Thus, can with the irrespectively driving of inhibit gate CD-ROM drive motor 2 of operation of door on-off switch 3, can prevent malfunction.In addition, in this state, by utilizing failure detector 1 observation the first and second on-off switch input voltages, fault detect can be proceeded, the fault of discontinuity can be detected.
Embodiments of the invention 1 more than have been described.Apparent according to this explanation, the present invention be connect having when having carried out making operation, the failure detector of the fault of the switch of disconnected contact detects when having carried out opening operation switch, the failure detector of this switch is characterised in that, have: voltage provides control module, it is when the fault of the above-mentioned switch of diagnosis, periodically to the voltage that high level is provided between the contact of above-mentioned switch and low level voltage; And fault detection unit, it detects the contact voltage of this switch when providing control module to provide voltage to above-mentioned switch from above-mentioned voltage, detect the fault of the contact of this switch according to detected contact voltage.And, according to the present invention, can diagnose continuously and detect when needed all the time the fault of on-off switch, can detect the fault of discontinuity.
(embodiment 2)
Fig. 3 is the figure of structure of the failure detector of the related power-operated door open and close switch of expression embodiments of the invention 2.Embodiment 2 shown in Fig. 3 is characterised in that, failure detector 21 possesses structure shown in Figure 4 and replaces the door on-off switch power supply relay 11 shown in Fig. 1, judge that with reference to fault shown in Figure 5 corresponding diagram comes the diagnosing malfunction of opposite house on-off switch 3 to detect, other structure with before Fig. 1 is identical.
In Fig. 4; the end of contact resistance R1 on the input terminal 22 of the first on-off switch input voltage of the embodiment 1 of failure detector 21 before accepting, the other end of resistance R 1 pass through resistance R 2 ground connection when being connected on the input decision circuitry 24 by holding circuit 23.In addition, be provided with accordingly identical structure with the second on-off switch input voltage of before embodiment 1.
Holding circuit 23 has the function of coming the semiconductor element etc. of protection structure input decision circuitry 24 from being applied to surge voltage on the input terminal 22 etc.
The voltage that input decision circuitry 24 is ordered according to the c of the input that becomes input decision circuitry 24 shown in Fig. 4 judges that with reference to fault judgement corresponding diagram shown in Figure 5 non-fault is arranged, thus the fault of diagnosis and detecting gate on-off switch 3.Fault shown in Figure 5 judges that corresponding diagram represents to judge have trouble-free fault to judge corresponding diagram according to the voltage that c is ordered.
Be mingled with foreign matter constant resistance body and make an on-off switch 3 that the voltage that the c in the situation of short trouble is ordered occur at contact S1, the S2 place of door on-off switch 3, the voltage that the c when the contact S1 of the door on-off switch 3 when normal or contact S2 are connected (connection) is ordered is compared decline.Thereby, the low voltage regime of voltage that c when the contact S1 of the door on-off switch 3 when normal or contact S2 are connected (connection) is ordered is made as judging area 3, include in this judging area 3 in the situation of the voltage that c orders, the contact S1, the S2 place that are estimated as at door on-off switch 3 are mingled with foreign matter constant resistance body and make an on-off switch 3 that short trouble occur.
On the other hand, voltage and the relation (representing with the straight line to the bottom right) between the resistance value of the contact S1 of door on-off switch 3, the foreign matter that the S2 place is mingled with etc. that can order according to c shown in Figure 5 are estimated the resistance value of the foreign matter that is mingled with at contact S1 or contact S2 place etc.
By experiment or emulation etc. obtain in advance relation shown in Figure 5 and store in the memory storage in the failure detector 21.
In this structure, following situation judge for door on-off switch 3 normal: when door on-off switch 3 is in off-state and makes an on-off switch 3 not be connected on the contact S1, detecting voltage that c order by input decision circuitry 24 is the interior low level of the judging area 1 shown in Fig. 5, be in on-state and when making an on-off switch 3 be connected on the contact S1 at door on-off switch 3, detecting voltage that c order by input decision circuitry 24 is the interior high level of the judging area 2 shown in Fig. 5.
On the other hand, be in off-state and detected by input decision circuitry 24 when making an on-off switch 3 not be connected on the contact S1 in the situation of voltage for the voltage in the judging area 3 of setting between the judging area 1 shown in Fig. 5 and judging area 2 that c order at door on-off switch 3, the contact S1 that is estimated as an on-off switch 3 foreign matter by having resistance to a certain degree etc. is short-circuited, and is judged as in door on-off switch 3 short trouble has occured.
In addition, be in off-state and detected by input decision circuitry 24 when making an on-off switch 3 not be connected on the contact S1 in the situation of voltage that voltage that c orders is the judging area 4 shown in Fig. 5 at door on-off switch 3, be estimated as the fault that is not an on-off switch 3 but the fault of other circuit.
Similarly, the contact S2 side of opposite house on-off switch 3 namely the second on-off switch input voltage also implement fault diagnosis and come detection failure.
At this, because the resistance value according to the supply voltage of power supply 4 and resistance R 1, R2 decides judging area shown in Figure 5 1～4, therefore be made as in the situation of fixed value in the resistance value with resistance R 1, R2, the failure detector 21 that is powered from power supply 4 detects the supply voltage of power supplys 4, changes this judging area 1～4 shown in Figure 5 according to its detected value.
Detecting in the out of order situation, can obtain identical effect by taking the measure identical with before embodiment 1.
Like this, in present embodiment 2, also adopted and diagnosed continuously when needing and the structure of the fault of detecting gate on-off switch 3, therefore can obtain the effect identical with before embodiment 1.
In addition, in the opposite polarity situation of door on-off switch 3, that is, the contact side is connected the structure on the power supply even door on-off switch 3 is connected the ground connection side, also can use structure shown in Figure 4.
Embodiments of the invention 2 more than have been described.Apparent according to this explanation, the present invention be connect having when having carried out making operation, the failure detector of the fault of the switch of disconnected contact detects when having carried out opening operation switch, the failure detector of this switch is characterised in that, has fault detection unit, this fault detection unit detects the contact voltage of above-mentioned switch by the voltage drop unit, there is the fault of the relation between the non-fault to judge corresponding diagram with reference to this contact voltage of expression and above-mentioned switch, detects the fault of the contact of above-mentioned switch according to its reference results.
The failure detector of power-operated door open and close switch of the present invention and detection method for example can be applicable in the fault detect of on-off switch of for motor vehicle automatically-controlled door.
In this case, this vehicle detects with the failure detector of the power-operated door open and close switch diagnosing malfunction to the door on-off switch of the switching of for example indicating for motor vehicle automatically-controlled door, this vehicle has with the failure detector of power-operated door open and close switch: voltage provides control module, it periodically provides voltage and the low level voltage of high level and controls to above-mentioned door on-off switch when the fault of the above-mentioned door of diagnosis on-off switch; And fault detection unit, it is when periodically providing control module to provide the voltage of high level and low level voltage to above-mentioned door on-off switch from above-mentioned voltage, input is connected when above-mentioned on-off switch is indicated opening or closing of above-mentioned automatically-controlled door, when not indicating the opening or closing of above-mentioned automatically-controlled door the contact voltage of the contact of disconnected above-mentioned on-off switch, diagnose and detect the fault of the contact of above-mentioned on-off switch according to the contact voltage of the above-mentioned door on-off switch of inputting.
In addition, this vehicle detects with the failure detector of the power-operated door open and close switch diagnosing malfunction to the door on-off switch of the switching of for example indicating for motor vehicle automatically-controlled door, this vehicle has fault detection unit with the failure detector of power-operated door open and close switch, this fault detection unit is inputted when above-mentioned on-off switch is indicated opening or closing of above-mentioned automatically-controlled door by the voltage drop unit and is connected, the contact voltage of the contact of disconnected above-mentioned on-off switch when not indicating the opening or closing of above-mentioned automatically-controlled door, there is the fault of the relation between the non-fault to judge corresponding diagram with reference to expression by contact voltage and the above-mentioned door on-off switch that above-mentioned voltage drop unit reduces voltage, diagnoses and detect the fault of the contact of above-mentioned door on-off switch according to its reference results.
Thereby above-described embodiment is simple illustration, and the present invention is not limited to these embodiment.For example, the invention of appropriate combination above-described embodiment, the distortion that belongs to technical scope of the present invention or change are all within the scope of the invention.
Claims (4)
1. the failure detector of a switch connects having when having carried out making operation, the fault of the switch of disconnected contact detects when having carried out opening operation, and the failure detector of this switch is characterised in that to have:
Voltage provides control module, its when the fault of the above-mentioned switch of diagnosis, the contact of above-mentioned switch be switched on during, periodically to the voltage that high level is provided between the contact of above-mentioned switch and low level voltage; And
Fault detection unit, it detects the contact voltage of this switch when providing control module to provide voltage to above-mentioned switch from above-mentioned voltage, detect the fault of the contact of this switch according to detected contact voltage.
2. the failure detector of switch according to claim 1 is characterized in that,
Above-mentioned fault detection unit is when providing control module to provide voltage to above-mentioned switch from above-mentioned voltage, detect the contact voltage of above-mentioned switch by the voltage drop unit that is consisted of by resistance R 1 and resistance R 2 series connection, there is the fault of the relation between the non-fault to judge corresponding diagram with reference to this contact voltage of expression and above-mentioned switch, detects the fault of the contact of above-mentioned switch according to its reference results.
3. the fault detection method of a switch connects having when having carried out making operation, the fault of the switch of disconnected contact detects when having carried out opening operation, and the fault detection method of this switch is characterised in that,
When the fault of the above-mentioned switch of diagnosis, the contact of above-mentioned switch be switched on during, periodically to the voltage that high level is provided between the contact of above-mentioned switch and low level voltage,
At the contact voltage that when above-mentioned switch provides voltage, detects this switch,
Detect the fault of the contact of this switch according to detected contact voltage.
4. the fault detection method of switch according to claim 3 is characterized in that,
When providing voltage to above-mentioned switch, the voltage drop unit that consists of by being connected by resistance R 1 and resistance R 2 detects the contact voltage of above-mentioned switch,
There is the fault of the relation between the non-fault to judge corresponding diagram with reference to this contact voltage of expression and above-mentioned switch,
Detect the fault of the contact of above-mentioned switch according to its reference results.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007145057A JP4450015B2 (en) | 2007-05-31 | 2007-05-31 | Fault detection device for automatic door opening / closing switch for vehicles |
| JP2007145057 | 2007-05-31 | ||
| JP2007-145057 | 2007-05-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101315413A CN101315413A (en) | 2008-12-03 |
| CN101315413B true CN101315413B (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200810108629 Active CN101315413B (en) | 2007-05-31 | 2008-05-30 | Fault detection apparatus for power-operated door open and close switch |
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| JP (1) | JP4450015B2 (en) |
| CN (1) | CN101315413B (en) |
Cited By (1)
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| CN109254244A (en) * | 2018-10-10 | 2019-01-22 | 中国核动力研究设计院 | A kind of diagnostic system of relay contact failure |
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| JP5511052B2 (en) * | 2009-11-26 | 2014-06-04 | 株式会社ユーシン | Electric steering lock device |
| US8457831B2 (en) * | 2010-07-14 | 2013-06-04 | Honda Motor Co., Ltd. | Power door safety locking system |
| CN105229885B (en) * | 2014-03-17 | 2017-06-09 | 三菱电机株式会社 | Power supply control device and programmable logic controller (PLC) |
| CN104049210B (en) * | 2014-07-01 | 2017-06-06 | 格力电器（武汉）有限公司 | The automatic detection device of optoelectronic switch |
| CN104453527B (en) * | 2014-11-28 | 2016-04-20 | 深圳市方大自动化系统有限公司 | Safety relay module, safety relay group and monitoring method thereof that tape jam is monitored |
| CN109071163B (en) * | 2016-07-20 | 2020-03-03 | 三菱电机大楼技术服务株式会社 | Elevator switching signal diagnosis device and elevator maintenance plan generation system |
| JP6862998B2 (en) * | 2017-03-29 | 2021-04-21 | 日産自動車株式会社 | Sliding door switchgear |
| WO2020027201A1 (en) * | 2018-07-31 | 2020-02-06 | ナブテスコ株式会社 | Inquiry processing device and inquiry processing method |
| JP2020051078A (en) * | 2018-09-26 | 2020-04-02 | いすゞ自動車株式会社 | Vehicle gate opening/closing device and failure detection method in vehicle gate opening/closing device |
| CN109441281A (en) * | 2018-12-12 | 2019-03-08 | 中国重汽集团济南动力有限公司 | Unmanned car intelligent switch door system and control method |
| JP7256091B2 (en) * | 2019-07-25 | 2023-04-11 | ナブテスコ株式会社 | Automatic door device inspection system, automatic door device inspection device, automatic door device inspection method |
| CN112607268A (en) * | 2020-11-02 | 2021-04-06 | 创泽智能机器人集团股份有限公司 | Cover switch structure and fault detection method |
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| CN1020001C (en) * | 1987-04-13 | 1993-03-03 | 株式会社日立制作所 | Action monitor of switchgears |
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| CN109254244A (en) * | 2018-10-10 | 2019-01-22 | 中国核动力研究设计院 | A kind of diagnostic system of relay contact failure |
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| CN101315413A (en) | 2008-12-03 |
| JP4450015B2 (en) | 2010-04-14 |
| JP2008296735A (en) | 2008-12-11 |
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