CN106526464A - Fault testing method for serial starter relays - Google Patents
Fault testing method for serial starter relays Download PDFInfo
- Publication number
- CN106526464A CN106526464A CN201510569852.7A CN201510569852A CN106526464A CN 106526464 A CN106526464 A CN 106526464A CN 201510569852 A CN201510569852 A CN 201510569852A CN 106526464 A CN106526464 A CN 106526464A
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- cranking
- motor relay
- battery data
- control signal
- relay
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Abstract
The invention provides a fault testing method serial starter relays. The fault testing method comprises the following steps of receiving a starting request by an engine control unit, and acquiring first battery data; transmitting a control signal to one in the serial starter relays by the engine control unit, and switching on an engine relay which receives the control signal; acquiring second battery data; calculating a difference between the first battery data and the second battery data, and if the absolute value of the difference is larger than or equal with a preset value, determining a sticking fault of the starter relay which does not receive the control signal. According to the fault testing method for the serial starter relays according to the invention, the battery data before switching-on of one starter relay in the serial starter relays are compared with the battery data after switching-on; if the difference between the battery data is larger than or equal with the preset value, the sticking fault of the other starter relay is determined. The fault testing method can find a sticking fault of a certain starter relay in the two serial starter relays in time, thereby ensuring high safety in driving.
Description
Technical field
The present invention relates to automotive field, and in particular to a kind of fault detect for cranking-motor relay of connecting
Method.
Background technology
Change of the automobile engine from resting state to working condition, it is necessary to drive electromotor by external force
Could realize after crank rotation.And conventional start mode has manpower to start and electric cranking.Manpower rises
Dynamic drawn with hand or rope, is a kind of simplest start mode.Electric cranking is passed through by direct current generator
Electromotor is started by drive mechanism, and it has convenient, the simple to operate, small volume of starting, light weight, peace
Complete reliable, starting is rapid, repeat the advantages of starting, and is widely used on Hyundai Motor.Typically
This electric starter motor is referred to as into starter.
The effect of starter is exactly to start electromotor, after electromotor is started, if driver does not discharge in time
Firing switch, will result in the unnecessary consumption of one-way clutch abrasion and storage battery energy.And if electromotor
During work, accidentally firing switch is again switched on, starter driving gear is will result in flywheel ring gear
Clash into, cause damage parts.Therefore, after electromotor is started, starter soon quits work.
The control circuit of starter can generally be divided into the control circuit without cranking-motor relay and carry
The control circuit of motivation relay, the purpose for installing cranking-motor relay are to reduce the electricity by ignition switch
Stream, prevents ignition switch scaling loss, and the application thus with the control circuit of cranking-motor relay is more extensive.
Cranking-motor relay is stuck, that is, cranking-motor relay coil is not powered, does not also discharge movable contact.
Such as armature and the moving component for being driven are stuck, foreign body fall in the gap of moving component or, line
Circle body heating deformation makes armature akinesia or contact is overheated deforms retainer, causes moving component not
Can action；When cranking-motor relay contact has more than the electric current of itself capacity several times, dynamic and static contact head is made
It is sintered together and can not discharges.
Stuck in the event of cranking-motor relay, after electromotor is started, starter cannot just stop work
Make, cause the unnecessary consumption or damage parts of energy.
Existing cranking-motor relay diagnostic mode be relay is carried out such as to power supply short circuit, it is short over the ground
Road or the diagnosis of open circuit.The failure of cranking-motor relay is found in time by these diagnostic modes, so as to
Improve the safety of driving.
In order to improve the safety of starter control, at present many automobile vendors are by two cranking-motor relays
Series connection is with Redundant Control starter, even if there have a cranking-motor relay to occur to be stuck, it is also possible to ensure to send out
After engine start, starter quits work, it is ensured that the safety of driving.
But cranking-motor relay adopts such connected mode, as two cranking-motor relays are series connection,
If some relay therein is stuck, starter still can normal work and cause such failure not
Easily it is found, during conventional cranking-motor relay diagnostic mode cannot detect the cranking-motor relay of series connection
One it is stuck, thus easily cause the damage of starter, threaten traffic safety.
The content of the invention
For problems of the prior art, the problem to be solved in the present invention is to provide a kind of for connecting
The fault detection method of cranking-motor relay, can detect in series connection cranking-motor relay in time
Stuck failure is there occurs, so as to ensure traffic safety.
When the equal adhesive of cranking-motor relay of two series connection, starter enters the moment of working condition, battery
Outfan can export the electric current bigger than before cranking-motor relay adhesive or lower voltage.The present invention's
Fault detection method for cranking-motor relay of connecting exactly detects cranking-motor relay card using this point
Dead failure.
The present invention provides a kind of fault detection method for cranking-motor relay of connecting, and comprises the following steps：
(1) control unit of engine receives start request, gathers the first battery data D1；
(2) control unit of engine sends control signal in series connection cranking-motor relay, receives
The cranking-motor relay adhesive of control signal；
(3) gather the second battery data D2；
(4) difference of the first battery data D1 and the second battery data D2 is calculated, if difference is absolute
There is stuck event more than or equal to setting value, the cranking-motor relay for not receiving control signal in value
Barrier.
Further, the start request in step (1) comes from operation automobile key, start stop system or nothing
Key activation system.
Further, the first battery data D1 and the second battery data D2, respectively by voltage sensor
The first voltage value of collection and second voltage value.
Further, first voltage value is electric more than or equal to setting with the absolute value of the difference of second voltage value
There is stuck failure in pressure value, the cranking-motor relay for not receiving control signal.
Further, the first battery data D1 and the second battery data D2, respectively by current sensor
First current value and the second current value of collection.
Further, the absolute value of the difference of the second current value and the first current value is more than or equal to setting electricity
There is stuck failure in flow valuve, the cranking-motor relay for not receiving control signal.
Further, it is further comprising the steps of after step (2)：
(21) number record of the cranking-motor relay of control signal will be received in the first recording unit.
Further, in step (2), control unit of engine is sent out in series connection cranking-motor relay
Go out control signal, be series connection cranking-motor relay in from number in the first recording unit different starters after
Electrical equipment.
Provided by the present invention for the fault detection method of cranking-motor relay of connecting, by changing starter
The adhesive order of relay, ensures that two series connection cranking-motor relays are obtained and detects whether that generation is stuck
The chance of failure.
Compared with prior art, provided by the present invention for the fault detection method of cranking-motor relay of connecting,
Have the advantages that：Before a cranking-motor relay adhesive relatively in series connection cranking-motor relay
With the battery data after adhesive, if the difference of the two be more than or equal to setting value, another starter
There is stuck failure in relay.Two starter relays in can finding in time in this way to connect
Stuck failure in some cranking-motor relay in device, it is ensured that traffic safety there is.
Description of the drawings
Fig. 1 is the schematic diagram of the starter control system of one embodiment of the present of invention；
Fig. 2 is the fault detect for cranking-motor relay of connecting of the starter control system shown in Fig. 1
The flow chart of method.
Specific embodiment
As shown in figure 1, the starter control system of one embodiment of the present of invention, single including electromotor control
Unit and the first starter relay R1 and the second starter relay R2 of series connection, starter control system are also wrapped
Include the sensor S1 for gathering battery data；Control unit of engine has the first starter relay of control
First control signal CS1 of R1, and second control signal CS2 of the second starter relay R2 of control.
In the present embodiment, using automobile key KL30, when automobile key rotates to " on " shelves, start
Machine control unit is powered up, and control unit of engine receives the start request that automobile key sends.
Certainly start request can be from start stop system or without key activation system, and the present invention does not make to this
Limit.
The fault detection method for cranking-motor relay of connecting of the present embodiment, comprises the following steps：
(1) control unit of engine receives start request, gathers the first battery data D1；
(2) control unit of engine sends control signal in series connection cranking-motor relay, receives
The cranking-motor relay adhesive of control signal；
(3) gather the second battery data D2；
(4) difference of the first battery data D1 and the second battery data D2 is calculated, if difference is absolute
There is stuck event more than or equal to setting value, the cranking-motor relay for not receiving control signal in value
Barrier.
When control unit of engine receives start request, the first battery data D1 is gathered；Electromotor control is single
Unit sends control signal in series connection cranking-motor relay, receives the starter relay of control signal
Device adhesive, at this moment another cranking-motor relay do not receive control signal.
If the cranking-motor relay for not receiving control signal is normal, that is, stuck event does not occur
Barrier, then the cranking-motor relay for not receiving control signal does not have adhesive, is off, now
Starter is not introduced into working condition, then the outfan of battery will not be exported to be inhaled than cranking-motor relay
Bigger electric current or lower voltage before closing.
And if the cranking-motor relay for not receiving control signal is that stuck failure occurs, then do not receive control
The cranking-motor relay of signal processed cannot discharge movable contact, and in closure state, now starter enters work
Make state, then the outfan of battery will export the electric current bigger than before cranking-motor relay adhesive or more
Low voltage.
Therefore the difference of the first battery data D1 and the second battery data D2 is calculated, if the absolute value of difference
More than or equal to setting value, there is stuck failure in the cranking-motor relay for not receiving control signal.
In the present embodiment, sensor S1 is current sensor, the first battery data D1 and the second battery data
D2, respectively the first current value and the second current value.Second current value is exhausted with the difference of the first current value
To value more than or equal to setting electric current value, there is stuck failure in the cranking-motor relay for not receiving control signal.
It is further comprising the steps of after step (2)：
(21) number record of the cranking-motor relay of control signal will be received in the first recording unit.
In step (2), control unit of engine sends control signal in series connection cranking-motor relay,
Be series connection cranking-motor relay in number different cranking-motor relays from the first recording unit.
Provided by the present invention for the fault detection method of cranking-motor relay of connecting, by changing starter
The adhesive order of relay, ensures that two series connection cranking-motor relays are obtained and detects whether that generation is stuck
The chance of failure.
Specific for connect cranking-motor relay fault detection method flow chart, as shown in Figure 2：
(1) whether control unit of engine receives start request, if do not received, continues waiting for；If
Receive, execution step (2)；
(2) gather the current value CUR1 of battery output；
(3) numbering of the starter relay for receiving control signal when last time starts is 1？If not being 1,
Execution step (4)；If 1, execution step (8)；
(4) the first control signal CS1 is sent, the first starter relay R1 adhesives of control signal are received；
(5) numbering for recording the starter relay that this starting receives control signal is 1；
(6) gather the current value CUR2 of battery output；
(7)|CUR2–CUR1|>=setting electric current value？If it is, the starter relay that numbering is 2 is sent out
The stuck failure of life；If it is not, execution step (12)；
(8) the second control signal CS2 is sent, the second starter relay R2 adhesives of control signal are received；
(9) numbering for recording the starter relay that this starting receives control signal is 2；
(10) gather the current value CUR2 of battery output；
(11)|CUR2–CUR1|>=setting electric current value？If it is, the starter relay that numbering is 1 is sent out
The stuck failure of life；If it is not, execution step (12)；
(12) fault-free, after electromotor enters idling, the first starter relay R1 of control and second is started
Relay R2 is disengaged, and starter quits work.
In the present embodiment, setting electric current value is 50A.
In another embodiment, sensor S1 is voltage sensor, and the first battery data D1 is electric with second
Pond data D2, the first voltage value for respectively being gathered by voltage sensor and second voltage value.
First voltage value is more than or equal to setting voltage value with the absolute value of the difference of second voltage value, does not receive
There is stuck failure in the cranking-motor relay to control signal.
In the present embodiment, setting voltage value is 6V.
Compared with prior art, provided by the present invention for the fault detection method of cranking-motor relay of connecting,
Have the advantages that：Before a cranking-motor relay adhesive relatively in series connection cranking-motor relay
With the battery data after adhesive, if the difference of the two be more than or equal to setting value, another starter
There is stuck failure in relay.Can find in time in this way to occur the starter of stuck failure after
Electrical equipment, it is ensured that traffic safety.
Although the present invention is disclosed as above with preferred embodiment, the present invention is not limited to this.Any
Art personnel, the various changes made without departing from the spirit and scope of the present invention and modification,
Should include in protection scope of the present invention, therefore protection scope of the present invention should be limited with claim
Scope be defined.
Claims (8)
1. a kind of fault detection method for cranking-motor relay of connecting, it is characterised in that comprise the following steps：
(1) control unit of engine receives start request, gathers the first battery data D1；
(2) control unit of engine sends control signal in series connection cranking-motor relay,
Receive the cranking-motor relay adhesive of the control signal；
(3) gather the second battery data D2；
(4) difference of the first battery data D1 and the second battery data D2 is calculated, if institute
The absolute value of difference is stated more than or equal to setting value, the starter relay of control signal is not received
There is stuck failure in device.
2. the fault detection method of the as claimed in claim 1 cranking-motor relay that is used for connecting, its feature exist
In the start request in step (1) comes from operation automobile key, start stop system or starts system without key
System.
3. the fault detection method of the as claimed in claim 1 cranking-motor relay that is used for connecting, its feature exist
In the first battery data D1 and the second battery data D2, respectively by voltage sensor
The first voltage value of collection and second voltage value.
4. the fault detection method of the as claimed in claim 3 cranking-motor relay that is used for connecting, it is characterised in that
The first voltage value is more than or equal to setting voltage value with the absolute value of the difference of the second voltage value,
There is stuck failure in the cranking-motor relay for not receiving control signal.
5. the fault detection method of the as claimed in claim 1 cranking-motor relay that is used for connecting, its feature exist
In the first battery data D1 and the second battery data D2, respectively by current sensor
First current value and the second current value of collection.
6. the fault detection method of the as claimed in claim 5 cranking-motor relay that is used for connecting, it is characterised in that
Second current value is more than or equal to setting electric current value with the absolute value of the difference of first current value,
There is stuck failure in the cranking-motor relay for not receiving control signal.
7. the fault detection method of the as claimed in claim 1 cranking-motor relay that is used for connecting, its feature exist
In further comprising the steps of after step (2)：
(21) number record of the cranking-motor relay of control signal will be received in first recording unit.
8. the fault detection method of the as claimed in claim 7 cranking-motor relay that is used for connecting, it is characterised in that
Control unit of engine described in step (2) sends control signal in series connection cranking-motor relay,
Be series connection cranking-motor relay in number different cranking-motor relays from the first recording unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510569852.7A CN106526464B (en) | 2015-09-09 | 2015-09-09 | Fault detection method for series starter relay |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510569852.7A CN106526464B (en) | 2015-09-09 | 2015-09-09 | Fault detection method for series starter relay |
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| Publication Number | Publication Date |
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| CN106526464A true CN106526464A (en) | 2017-03-22 |
| CN106526464B CN106526464B (en) | 2020-02-21 |
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| CN201510569852.7A Active CN106526464B (en) | 2015-09-09 | 2015-09-09 | Fault detection method for series starter relay |
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Cited By (4)
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| CN111722104A (en) * | 2020-06-30 | 2020-09-29 | 潍柴动力股份有限公司 | Method and device for detecting state of air inlet heating relay |
| CN112684328A (en) * | 2020-11-24 | 2021-04-20 | 深圳供电局有限公司 | Anti-jump loop monitoring system, method and device, computer equipment and storage medium |
| CN112731055A (en) * | 2020-12-21 | 2021-04-30 | 潍柴动力股份有限公司 | Starter line fault detection method and device, engine electric control equipment and medium |
| CN114326546A (en) * | 2020-09-29 | 2022-04-12 | 云米互联科技(广东)有限公司 | Kitchen appliance control method, kitchen appliance and computer-readable storage medium |
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| CN106526464B (en) | 2020-02-21 |
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Effective date of registration: 20200429 Address after: 130033 No. 1981, Wuhan Road, Changchun economic and Technological Development Zone, Changchun, Jilin Patentee after: WeiPai automotive electronics (Changchun) Co., Ltd Address before: 130033 No. 1981, Wuhan Road, Changchun economic and Technological Development Zone, Changchun, Jilin Patentee before: Continental automotive electronics (Changchun) Co., Ltd |