CN102343885B - Unlocking detection system and method, and steering locking device - Google Patents
Unlocking detection system and method, and steering locking device Download PDFInfo
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- CN102343885B CN102343885B CN201010245195.8A CN201010245195A CN102343885B CN 102343885 B CN102343885 B CN 102343885B CN 201010245195 A CN201010245195 A CN 201010245195A CN 102343885 B CN102343885 B CN 102343885B
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Abstract
The invention discloses an unlocking detection system. The unlocking detection system comprises a control unit, a Hall sensor and a detection unit; the detection unit is electrically connected with the control unit; the detection unit is used for detecting a voltage signal when the Hall sensor is switched on and off under the control of the control unit; and the control unit is used for judging whether a circuit of the Hall sensor is abnormal according to the received voltage signal. The invention also provides an unlocking detection method and a steering locking device. When the steering locking device is unlocked, whether the circuit of the Hall sensor is abnormal is judged according to the detected voltage signal, unlocking failure information of the steering locking device is fed back when the circuit of the Hall sensor is abnormal, and unlocking success information of the steering locking device is fed back when the circuit of the Hall sensor is normal, namely before an unlocking command execution result is fed back, whether the Hall sensor is abnormal is judged, so the accuracy of state information feedback of the steering locking device is effectively guaranteed.
Description
Technical field
Checking system, unblank method of inspection and Lenkradschlossvorrichtung the present invention relates to unblank.
Background technology
Lenkradschlossvorrichtung generally comprises motor, transfer device, magnet, locking bar and control ECU, controls ECU and comprises control unit and Hall element.The propulsive effort of motor passes to locking bar by transfer device, and then makes locking bar be combined with banning of turning movement operation (realizing locking) with steering shaft or make locking bar separate (realizing unblanking) with steering shaft.Control unit receives the order of vehicle ECU and controls locking and the release that realizes Lenkradschlossvorrichtung, magnet is fixed on locking bar, when the locking bar up-and-down movement, magnet is motion thereupon also, when the close Hall element of magnet, Hall element can be responded to output voltage, by detecting this output voltage, can judge that current Lenkradschlossvorrichtung is locking or unblanks.
Hall element circuit in current most of Lenkradschlossvorrichtung as shown in Figure 1.The principle of its work is: the input voltage of Hall element is definite value+5V, and while unblanking, magnet is near Hall element, and Hall element is conducting, and the output voltage that now detects the AI3 mouth is 0V, and the control unit judgement is unblanked, and feedback unblanks successfully to order.
If delivery port (being the AI3 mouth) and ground short circuit, the value that now control unit collects is also 0V, and in this case, Lenkradschlossvorrichtung is even without unblanking, and control unit also can be thought by mistake and unblank and send the successful order of unblanking.
Now, if need to carry out lock operation, because control unit thinks that the state of current Lenkradschlossvorrichtung is unlocking condition, can cause locking bar to move ahead, until stretch out fully always.
In addition, if now press the vehicle launch button, after car load powers on, due to Lenkradschlossvorrichtung in blocking, so bearing circle or in lockup state.When needs turn to, there will be the ineffective situation that turns to, easily cause accident.
Summary of the invention
The present invention causes the inaccurate technical matters of Lenkradschlossvorrichtung status information feedback for solving when existing Hall element circuit breaks down, and provides a kind of and can accurately feed back the checking system of unblanking of Lenkradschlossvorrichtung status information, unblank method of inspection and Lenkradschlossvorrichtung.
One aspect of the present invention provides a kind of checking system of unblanking, the detection of unblanking for Lenkradschlossvorrichtung judgement, and wherein, the described checking system of unblanking comprises: control unit, Hall element and detecting unit, described detecting unit is electrically connected to described control unit;
Conducting or the cut-off for the motion of magnet of responding to Lenkradschlossvorrichtung of described Hall element, described Hall element is also for order conducting or cut-off according to described control unit;
Described detecting unit is used for: when Lenkradschlossvorrichtung is unblanked, detect Hall element voltage signal when conducting and cut-off the voltage signal detected is sent to control unit under the control of described control unit;
Described control unit is used for:
Judge that according to the voltage signal received whether described Hall element circuit is abnormal:
The information that the feedback Lenkradschlossvorrichtung is unblanked failure when described Hall element circuit abnormality;
When described Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking.
Further, described detecting unit comprises circuit control unit and detecting signal unit, and described circuit control unit and detecting signal unit all are electrically connected to described control unit, and described circuit control unit, Hall element and detecting signal unit are electrically connected to successively;
Described circuit control unit is used for: according to the order of control unit, control Hall element conducting or cut-off;
Described detecting signal unit is used for: the voltage signal while detecting described circuit control unit control Hall element conducting and cut-off also sends to control unit by the voltage signal detected.
Described circuit control unit comprises: the first aerotron, the 5th resistance, the 6th resistance and circuit are controlled mouth, described the 5th resistance is connected on described circuit and controls between the base stage of mouth and the first aerotron, described the 6th resistance is connected between the emitter and base stage of described the first aerotron, the power supply of be connected with+5V of the emitter of described the first aerotron, described circuit is controlled that mouth is connected with described control unit and is ended or conducting to control the first aerotron for the voltage of the base stage input+5V to the first aerotron or 0V.
Described Hall element comprises the second aerotron, the first electric capacity and the second electric capacity, the base stage of described the second aerotron is connected with the collecting electrode of described the first aerotron, described the first electric capacity is connected between the base stage and emitter of described the second aerotron, described the second electric capacity is connected between the collector and emitter of described the second aerotron, described grounded emitter.
The described checking system of unblanking also comprises the 4th resistance, described detecting signal unit and the 4th resistance are connected between the collecting electrode of described control unit and the second aerotron successively, described detecting signal unit comprises first detection port, second detection port and three detection port of parallel series between described the 4th resistance and control unit, between described the first detection port, the second detection port and the 3rd detection port and described the 4th resistance, is in series with respectively the first resistance, the second resistance and the 3rd resistance;
Described control unit is used for:
Control mouthful control first aerotron conducting and a cut-off by circuit,
Respectively to any two the detection port input+5V in the first detection port, the second detection port and the 3rd detection port and the voltage of 0V, and by the 3rd detection port detectable voltage signals,
Control successively the first detection port, the second detection port and the 3rd detection port detectable voltage signals,
The all voltage signals that detect according to the first detection port, the second detection port and the 3rd detection port judge that whether described Hall element circuit is abnormal:
The information that the feedback Lenkradschlossvorrichtung is unblanked failure when described Hall element circuit abnormality;
When described Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking.
The resistance of described the first resistance, the second resistance, the 3rd resistance and the 4th resistance equates.
Described control unit is used for:
Whether in the predefined first voltage range of control unit, judge that whether the Hall element circuit is abnormal according to detected all magnitudes of voltage;
And
While calculating respectively the first aerotron conducting and cut-off, the voltage difference of twice collection of same detection port,
Whether in the predefined second voltage scope of control unit, judge that whether described Hall element circuit is abnormal according to calculated voltage difference:
When detected all magnitudes of voltage all are positioned at first voltage range and all voltage differences of calculating while all being positioned at the second voltage scope, judgement Hall element circuit is without extremely;
When detected all magnitudes of voltage have at least all voltage differences that are not positioned at first voltage range or calculate to have at least one not to be positioned at the second voltage scope, judgement Hall element circuit abnormality.
The present invention also provides a kind of method of inspection of unblanking on the other hand, and for the checking system of unblanking, the described checking system of unblanking comprises control unit, Hall element and detecting unit, and wherein, the described method of inspection of unblanking comprises:
Described control unit is controlled described Hall element conducting and cut-off;
Voltage signal when described detecting signal unit detects described Hall element conducting and cut-off;
The voltage signal that described control unit detects according to described detecting signal unit judges that whether described Hall element circuit is abnormal:
The information that the feedback Lenkradschlossvorrichtung is unblanked failure when described Hall element circuit abnormality;
When described Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking.
Further, the described checking system of unblanking also comprises the 4th resistance, described detecting unit comprises circuit control unit and detecting signal unit, described circuit control unit comprises circuit control mouth and the first aerotron, described detecting signal unit comprises the first detection port, the second detection port and the 3rd detection port, be in series with respectively the first resistance, the second resistance and the 3rd resistance between described the first detection port, the second detection port and the 3rd detection port and described the 4th resistance, the described method of inspection of unblanking comprises:
Control mouthful control first aerotron conducting and a cut-off by circuit,
Respectively to any two the detection port input+5V in the first detection port, the second detection port and the 3rd detection port and the voltage of 0V, and by the 3rd detection port detectable voltage signals,
Control successively the first detection port, the second detection port and the 3rd detection port detectable voltage signals,
The all voltage signals that detect according to the first detection port, the second detection port and the 3rd detection port judge that whether described Hall element circuit is abnormal:
The information that the feedback Lenkradschlossvorrichtung is unblanked failure when described Hall element circuit abnormality;
When described Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking.
The resistance of described the first resistance, the second resistance, the 3rd resistance and the 4th resistance is equal, and described control method comprises:
Whether in the predefined first voltage range of control unit, judge that whether the Hall element circuit is abnormal according to detected all magnitudes of voltage;
And
While calculating respectively the first aerotron conducting and cut-off, the voltage difference of twice collection of same detection port,
Whether in the predefined second voltage scope of control unit, judge that whether described Hall element circuit is abnormal according to calculated voltage difference:
When detected all magnitudes of voltage all are positioned at first voltage range and all voltage differences of calculating while all being positioned at the second voltage scope, judgement Hall element circuit is without extremely;
When detected all magnitudes of voltage have at least all voltage differences that are not positioned at first voltage range or calculate to have at least one not to be positioned at the second voltage scope, judgement Hall element circuit abnormality.
Further aspect of the present invention also provides a kind of Lenkradschlossvorrichtung, and wherein, described Lenkradschlossvorrichtung comprises the above-mentioned checking system of unblanking.
Further, described Lenkradschlossvorrichtung also comprises: motor, transfer device, magnet and for locking the locking bar of steering shaft, described motor drives described locking bar by transfer device and has moved to unblank or locking, described magnet moves with described locking bar, when the close described Hall element of described magnet, described Hall element conducting, the control unit of the described checking system of unblanking is controlled described Hall element conducting and cut-off;
Voltage signal when described detecting signal unit detects described Hall element conducting and cut-off;
The voltage signal that described control unit detects according to described detecting signal unit judges that whether described Hall element circuit is abnormal:
The information that the feedback Lenkradschlossvorrichtung is unblanked failure when described Hall element circuit abnormality;
When described Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking.
The checking system of unblanking of the present invention, unblank method of inspection and Lenkradschlossvorrichtung, when Lenkradschlossvorrichtung is unblanked, control Hall element conducting and cut-off by control unit, and judge that according to the voltage signal detected whether the Hall element circuit is abnormal, the information that the feedback Lenkradschlossvorrichtung is unblanked failure when the Hall element circuit abnormality, in Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking, it is the Lenkradschlossvorrichtung of unblanking checking system and comprising this checking system of unblanking of the present invention, increased the whether abnormal judgement of Hall element circuit before feedback unlock command execution result, so effectively guaranteed the accuracy of Lenkradschlossvorrichtung status information feedback.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of the Hall element circuit of the Lenkradschlossvorrichtung that provides of prior art;
Fig. 2 is the block diagram of the checking system of unblanking that provides of the embodiment of the present invention;
Fig. 3 is the circuit diagram of the checking system of unblanking that provides of the embodiment of the present invention;
Fig. 4 is the diagram of circuit of the method for inspection of the checking system of unblanking that provides of the embodiment of the present invention.
The specific embodiment
In order to make technical matters solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
According to one embodiment of the present invention, as shown in Figures 2 and 3, one aspect of the present invention provides a kind of checking system of unblanking, the detection judgement of unblanking for Lenkradschlossvorrichtung, wherein, this checking system of unblanking comprises: control unit, Hall element and detecting unit, and detecting unit is electrically connected to control unit;
Hall element conducting or cut-off for the motion of magnet of responding to Lenkradschlossvorrichtung, Hall element is also for order conducting or cut-off according to control unit;
Detecting unit is used for: when Lenkradschlossvorrichtung is unblanked, detect Hall element voltage signal when conducting and cut-off the voltage signal detected is sent to control unit under the control of control unit;
Control unit is used for:
Judge that according to the voltage signal received whether the Hall element circuit is abnormal:
The information that the feedback Lenkradschlossvorrichtung is unblanked failure when the Hall element circuit abnormality;
When Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking.
Control unit can be selected the control setup of various suitable type as required, as those skilled in the art can adopt various suitable micro controller systems or control chip etc., realizes controlling function.
Whether Hall element is close for the magnet of responding to Lenkradschlossvorrichtung, when magnet is close, and the Hall element conducting, control unit is according to the voltage signal feedback unlock command execution result detected.Hall element can be selected various suitable models as required, and those skilled in the art can also select other suitable sensing device to realize the function of Hall element certainly.
Lenkradschlossvorrichtung can be selected various commonly used for locking the device of steering shaft, and this checking system of unblanking can integrate, thereby can coordinate various Lenkradschlossvorrichtungs to use.
Further, as shown in Figure 2, detecting unit comprises circuit control unit and detecting signal unit, and circuit control unit and detecting signal unit all are electrically connected to control unit, and circuit control unit, Hall element and detecting signal unit are electrically connected to successively;
Circuit control unit is used for: according to the order of control unit, control Hall element conducting or cut-off;
Detecting signal unit is used for: the voltage signal when testing circuit control unit is controlled Hall element conducting and cut-off also sends to control unit by the voltage signal detected.
Further, as shown in Figure 3, circuit control unit comprises: the first aerotron Q1, the 5th resistance R 5, the 6th resistance R 6 and circuit are controlled mouth, the 5th resistance R 5 is connected on circuit and controls between the base stage of mouth and the first aerotron Q1, the 6th resistance R 6 is connected between the emitter and base stage of the first aerotron Q1, the power supply of be connected with+5V of the emitter of the first aerotron Q1, circuit is controlled that mouth is connected with control unit and is ended or conducting to control the first aerotron Q1 for the voltage of the base stage input+5V to the first aerotron Q1 or 0V.
The 5th resistance R 5 and the 6th resistance R 6 can be selected suitable resistance as required, and as the 5th resistance R 5 can be 1K Ω, the 6th resistance R 6 is 10K Ω.
According to one embodiment of the present invention, the first aerotron Q1 is the positive-negative-positive aerotron.Those skilled in the art can also select NPN type aerotron as the first aerotron, as long as can control conducting and the cut-off of Hall element.
Further, Hall element comprises: the second aerotron Q2, the first capacitor C 1 and the second capacitor C 2, the base stage of the second aerotron Q2 is connected with the collecting electrode of the first aerotron Q1, the first capacitor C 1 is connected between the base stage and emitter of the second aerotron Q2, the second capacitor C 2 is connected between the collector and emitter of the second aerotron Q2, grounded emitter.
According to one embodiment of the present invention, the second aerotron is NPN type aerotron.Those skilled in the art can also select the positive-negative-positive aerotron as the second aerotron.
The first capacitor C 1 and the second capacitor C 2 can be selected suitable model as required, and as the first electric capacity can be 100nF, the second electric capacity can be 10nF.
The checking system of unblanking also comprises the 4th resistance R 4, detecting signal unit and the 4th resistance R 4 are connected between the collecting electrode of control unit and the second aerotron Q2 successively, detecting signal unit comprises first detection port A1, second detection port A2 and the three detection port A3 of parallel series between the 4th resistance R 4 and control unit, is in series with respectively the first resistance R 1, the second resistance R 2 and the 3rd resistance R 3 between the first detection port A1, the second detection port A2 and the 3rd detection port A3 and the 4th resistance R 4;
Control unit is used for:
Control mouthful control first aerotron Q1 conducting and a cut-off by circuit,
Respectively to any two the detection port input+5V in the first detection port A1, the second detection port A2 and the 3rd detection port A3 and the voltage of 0V, and by the 3rd detection port detectable voltage signals,
Control successively the first detection port A1, the second detection port A2 and the 3rd detection port A3 detectable voltage signals,
The all voltage signals that detect according to the first detection port A1, the second detection port A2 and the 3rd detection port A3 judge that whether the Hall element circuit is abnormal:
The information that the feedback Lenkradschlossvorrichtung is unblanked failure when the Hall element circuit abnormality;
When Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking.
The first detection port A1, the second detection port A2 and the 3rd detection port A3 parallel series are between the 4th resistance R 4 and control unit, refer between the first detection port A1, the second detection port A2 and the 3rd detection port A3 to be relation in parallel, and the first detection port A1, the second detection port A2 and the 3rd detection port A3 are connected between the 4th resistance R 4 and control unit, three detection port can detect voltage respectively and be independent of each other.
Generally, due to the power supply of the control unit power supply that is 5V, so can input+5V voltage when circuit is controlled mouth and is connected with control unit.Similarly, the first detection port A1, the second detection port A2 and the 3rd also can input+5V of detection port A3 voltage.
Respectively to any two the detection port input+5V in the first detection port A1, the second detection port A2 and the 3rd detection port A3 and the voltage of 0V, and by the 3rd detection port detectable voltage signals, particularly, when the voltage to the first detection port A1 and the second input respectively+5V of detection port A2 and 0V, by the 3rd detection port A3, two magnitudes of voltage can be detected.In addition, the first aerotron Q1 conducting and cut-off will cause the second aerotron Q2 conducting and cut-off, like this when the second aerotron Q2 conducting and cut-off, thereby three can detect four magnitudes of voltage altogether by the 3rd detection port A3, three detection port repeat this process, and the magnitude of voltage altogether detected (corresponding voltage signal) will have 12.
Whether abnormal for the ease of judging the Hall element circuit, preferably, the resistance of the first resistance R 1, the second resistance R 2, the 3rd resistance R 3 and the 4th resistance R 4 equates.As the resistance of the first resistance R 1, the second resistance R 2, the 3rd resistance R 3 and the 4th resistance R 4 can be 10K Ω.
Further, according to one embodiment of the present invention, control unit is used for: according to detected all magnitudes of voltage, whether in the predefined first voltage range of control unit, judge that whether the Hall element circuit is abnormal;
And
While calculating respectively the first aerotron conducting and cut-off, the voltage difference of twice collection of same detection port,
Whether in the predefined second voltage scope of control unit, judge that whether the Hall element circuit is abnormal according to calculated voltage difference:
When detected all magnitudes of voltage all are positioned at first voltage range and all voltage differences of calculating while all being positioned at the second voltage scope, judgement Hall element circuit is without extremely;
When detected all magnitudes of voltage have at least all voltage differences that are not positioned at first voltage range or calculate to have at least one not to be positioned at the second voltage scope, judgement Hall element circuit abnormality.
Below, the resistance of the first resistance R 1, the second resistance R 2, the 3rd resistance R 3 and the 4th resistance R 4 of take is 10K Ω as example, describe in detail control unit how to utilize the voltage signal detected judge the Hall element circuit whether extremely and Lenkradschlossvorrichtung whether unblank successfully.
Because the resistance of the first resistance R 1, the second resistance R 2, the 3rd resistance R 3 and the 4th resistance R 4 is equal, so when Hall element conducting or cut-off, the equivalent testing circuit of the first detection port A1, the second detection port A2 and the 3rd detection port A3 is all similar, and testing result is all the same.
So, under perfect condition, when the Hall element conducting, six voltages that detect by three detection port all: 5V* (5/ (5+10))=5/3V.
Consider various errors, when detecting, the detection voltage of three detection port should be positioned at a voltage range, below calculates for example the computation process of this voltage range:
Minimum value: now the resistance of two parallel connections can be got 9K Ω, and the resistance of series connection can be got 11K Ω with it, and the magnitude of voltage of detection port input can be got 3.6V, and minimum value is: 3.6V* (4.5/ (4.5+11))=1.044V gets 1.0V.
Maxim: now the resistance of two parallel connections can be got 11K Ω, and the resistance of series connection can be got 9K Ω with it, and the magnitude of voltage of detection port input can be got 5.0V, and maxim is: 5.0V* (5.5/ (5.5+9))=1.897V gets 2.0V.
While being the Hall element conducting, the voltage range that three detection port detect is: [1.0,2.0] V.
Similarly, under perfect condition, when Hall element ends, six voltages that detect by three detection port all: 5V* (10/ (10+10))=2.5V.
Consider various errors, when detecting, the detection voltage of three detection port should be positioned at a voltage range, below calculates for example the computation process of this voltage range:
Minimum value: now the resistance of two series connection can be got respectively 11K Ω and 9K Ω, and the magnitude of voltage of detection port input can be got 3.6V, and minimum value is: 3.6V* (9/ (9+11))=1.62V gets 2.0V.
Maxim: now the resistance of two series connection can be got respectively 9K Ω and 11K Ω, and the magnitude of voltage of detection port input can be got 5.0V, and maxim is: 5.0V* (11/ (11+9))=2.75V.
Be Hall element when cut-off, the voltage range that three detection port detect is: [2.0,2.75] V.
So, according to control port input respectively 0V and+during 5V voltage, Hall element is respectively in conducting and off condition, the voltage range of 12 kinds of combinations that detect of three detection port is: [1.0,2.75] V, this voltage range can, as first voltage range, more be segmented, when the Hall element conducting, be [1.0,2.0] V; When Hall element ends, be [2.0,2.75] V.When the voltage detected by three detection port has at least one to judge the Hall element circuit abnormality during not in this scope.
In addition, when Hall element conducting or cut-off, for same detection port, when input respectively+5V of two other detection port and 0V, the voltage difference detected for twice should be in a voltage difference scope.
When the Hall element conducting, if the input voltage of two detection port is respectively 3.6V and 0V, the voltage difference detected for twice is to the maximum:
3.6V*(5.5/(5.5+9))-3.6V*(4.5/(4.5+11))＝0.32V。
If the input voltage of two detection port is respectively 5V and 0V, the voltage difference detected for twice is to the maximum: 5.0V* (5.5/ (5.5+9))-5.0V* (4.5/ (4.5+11))=0.45V.
When Hall element is closed, if the input voltage of two detection port is respectively 3.6V and 0V, the voltage difference detected for twice is to the maximum:
3.6V*(11/(11+9))-3.6V*(9/(9+11))＝0.36V。
If the input voltage of two detection port is respectively 5.0V and 0V, the voltage difference detected for twice is to the maximum: 5.0V* (11/ (11+9))-5.0V* (9/ (9+11))=0.5V.
Consider the existence of various errors, when the Hall element circuit, when abnormal, the voltage difference detected for twice also should be less than 0.6V, and this voltage range can be used as the second voltage scope.If have at least one to surpass 0.6V in the voltage difference detected for twice for same detection port, judge the Hall element circuit abnormality.
So, when detected all magnitudes of voltage all are positioned at first voltage range and all voltage differences of calculating while all being positioned at the second voltage scope, judgement Hall element circuit is without extremely.
Now control unit feedback Lenkradschlossvorrichtung unblanks successfully to order, and control unit is generally that information is fed back in the master control ECU of vehicle, and master control ECU can control start the engine after receiving the successful information of unblanking.
And work as detected all magnitudes of voltage while having at least all voltage differences that are not positioned at first voltage range or calculate to have at least one not to be positioned at the second voltage scope, judge the Hall element circuit abnormality.
The control unit feedback Lenkradschlossvorrichtung failure information of unblanking now, the master control ECU of vehicle is that control engine does not start after receiving the information of the failure of unblanking.Further, a warning device can also be set, all right alarm chaufeur after master control ECU receives the information of the failure of unblanking, so that the on-call maintenance vehicle.
Those skilled in the art can set the resistance of the first resistance R 1, the second resistance R 2, the 3rd resistance R 3 and the 4th resistance R 4 as required, now, each above-mentioned voltage range also changes thereupon, and corresponding to different resistances, voltage range all can be determined according to above-mentioned method or similar method.
In addition, detecting signal unit of the present invention has comprised three detection port, and those skilled in the art can also arrange other number (as 4 s') detection port as required.
According to one embodiment of the present invention, as shown in Figure 4, the present invention also provides a kind of method of inspection of unblanking on the other hand, for this checking system of unblanking, this checking system of unblanking comprises control unit, Hall element and detecting unit, and wherein, this method of inspection of unblanking comprises:
Control unit is controlled described Hall element conducting and cut-off;
Voltage signal when detecting signal unit detects Hall element conducting and cut-off;
The voltage signal that control unit detects according to detecting signal unit judges that whether the Hall element circuit is abnormal:
The information that the feedback Lenkradschlossvorrichtung is unblanked failure when the Hall element circuit abnormality;
When Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking.
Further, the checking system of unblanking also comprises the 4th resistance R 4, detecting unit comprises circuit control unit and detecting signal unit, circuit control unit comprises circuit control mouth and the first aerotron Q1, detecting signal unit comprises the first detection port A1, the second detection port A2 and the 3rd detection port A3, be in series with respectively the first resistance R 1, the second resistance R 2 and the 3rd resistance R 3 between the first detection port A1, the second detection port A2 and the 3rd detection port A3 and the 4th resistance, this method of inspection of unblanking comprises:
Control mouthful control first aerotron Q1 conducting and a cut-off by circuit,
Respectively to any two the detection port input+5V in the first detection port A1, the second detection port A2 and the 3rd detection port A3 and the voltage of 0V, and by the 3rd detection port detectable voltage signals,
Control successively the first detection port A1, the second detection port A2 and the 3rd detection port A3 detectable voltage signals,
The all voltage signals that detect according to the first detection port A1, the second detection port A2 and the 3rd detection port A3 judge that whether the Hall element circuit is abnormal:
The information that the feedback Lenkradschlossvorrichtung is unblanked failure when the Hall element circuit abnormality;
When Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking.
Further, according to one embodiment of the present invention, the resistance of the first resistance R 1, the second resistance R 2, the 3rd resistance R 3 and the 4th resistance R 4 is equal, and this control method comprises:
Whether in the predefined first voltage range of control unit, judge that whether the Hall element circuit is abnormal according to detected all magnitudes of voltage;
And
While calculating respectively the first aerotron Q1 conducting and cut-off, the voltage difference of twice collection of same detection port,
Whether in the predefined second voltage scope of control unit, judge that whether described Hall element circuit is abnormal according to calculated voltage difference:
When detected all magnitudes of voltage all are positioned at first voltage range and all voltage differences of calculating while all being positioned at the second voltage scope, judgement Hall element circuit is without extremely;
When detected all magnitudes of voltage have at least all voltage differences that are not positioned at first voltage range or calculate to have at least one not to be positioned at the second voltage scope, judgement Hall element circuit abnormality.
It should be noted that, whether whether all magnitudes of voltage of detecting of judgement can set as required both orders in the predefined first voltage range of control unit (being first Rule of judgment) with judging the voltage difference calculated between the predefined second voltage scope of control unit (i.e. second Rule of judgment), carry out again second Rule of judgment as can be first carried out the first Rule of judgment, also can first carry out the second Rule of judgment and carry out again the first Rule of judgment, can also two Rule of judgment simultaneously or intersect and carry out.
Preferably, first carry out first Rule of judgment and carry out again second Rule of judgment.Whether all magnitudes of voltage that first judgement detects are in the predefined first voltage range of control unit, when all magnitudes of voltage of detecting of judgement during all in the predefined first voltage range of control unit, more whether the voltage difference that judgement calculates is in the predefined second voltage scope of control unit.
Further aspect of the present invention also provides a kind of Lenkradschlossvorrichtung, and wherein, this Lenkradschlossvorrichtung comprises the above-mentioned checking system of unblanking.
Further, this is stated Lenkradschlossvorrichtung and also comprises: motor, transfer device, magnet and for locking the locking bar of steering shaft, motor drives locking bar by transfer device and has moved to unblank or locking, magnet moves with locking bar, when the close Hall element of magnet, the Hall element conducting, the control unit of this checking system of unblanking is controlled Hall element conducting and cut-off;
Voltage signal when detecting signal unit detects Hall element conducting and cut-off;
The voltage signal that control unit detects according to detecting signal unit judges that whether the Hall element circuit is abnormal:
The information that the feedback Lenkradschlossvorrichtung is unblanked failure when the Hall element circuit abnormality;
When Hall element feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking.
As shown in Figure 4, according to one embodiment of the present invention, the method for inspection of the checking system of unblanking of the present invention is as follows:
Control unit is controlled mouthful control first aerotron Q1 conducting and a cut-off by circuit, thereby make the second aerotron Q2 conducting and cut-off, when the second aerotron Q2 conducting or cut-off, control unit is controlled the voltage of any two input respectively+5V of detection port and 0V and is passed through the 3rd detection port detectable voltage signals, thereby 12 groups of voltage signals of three detection port detected, now can be judged according to the voltage signal detected: the voltage signal detected whether the voltage difference in first voltage range and twice collection of same detection port whether all in the second voltage scope.
When the voltage signal detected when all the voltage difference in first voltage range and twice collection of same detection port is all in the second voltage scope, think that the Hall element circuit is without extremely, and then the feedback Lenkradschlossvorrichtung successful information of unblanking.
In addition, when the voltage signal detected has at least a voltage difference that is not positioned at first voltage range or twice collection of same detection port to have at least one not to be positioned at the second voltage scope, all can think the Hall element circuit abnormality, and then the unblank order of failure of feedback Lenkradschlossvorrichtung.
The checking system of unblanking of the present invention, unblank method of inspection and Lenkradschlossvorrichtung, when Lenkradschlossvorrichtung is unblanked, control Hall element conducting and cut-off by control unit, and judge that according to the voltage signal detected whether the Hall element circuit is abnormal, in Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking; The information that the feedback Lenkradschlossvorrichtung is unblanked failure when the Hall element circuit abnormality.Control unit can also feed back the information of Hall element circuit abnormality (rather than Lenkradschlossvorrichtung is unblanked unsuccessfully), and now, vehicle ECU is not owing to receiving the successful information of unblanking, and control engine does not start.
Whether due to the checking system of unblanking of the present invention, the Hall element circuit can be detected abnormal, therefore can effectively avoid unblanking successfully to order because the Hall element circuit abnormality miss to feed back, thereby cause situation in stays after Vehicle Driving Cycle and that cause the accident.Be the checking system of unblanking of the present invention, unblank method of inspection and Lenkradschlossvorrichtung, increased the whether abnormal judgement of Hall element circuit before feedback unlock command execution result, so effectively guaranteed the accuracy of Lenkradschlossvorrichtung status information feedback, can greatly improve the use degree of safety of vehicle, the personal safety of effective guarantee chaufeur.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. the checking system of unblanking, the detection of unblanking for Lenkradschlossvorrichtung judgement, is characterized in that, the described checking system of unblanking comprises: control unit, Hall element and detecting unit, described detecting unit is electrically connected to described control unit;
Conducting or the cut-off for the motion of magnet of responding to Lenkradschlossvorrichtung of described Hall element, described Hall element is also for order conducting or cut-off according to described control unit;
Described detecting unit is used for: when Lenkradschlossvorrichtung is unblanked, detect Hall element voltage signal when conducting and cut-off the voltage signal detected is sent to control unit under the control of described control unit;
Described control unit is used for:
Judge that according to the voltage signal received whether described Hall element circuit is abnormal:
The information that the feedback Lenkradschlossvorrichtung is unblanked failure when described Hall element circuit abnormality;
When described Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking.
2. the checking system of unblanking as claimed in claim 1, it is characterized in that, described detecting unit comprises circuit control unit and detecting signal unit, described circuit control unit and detecting signal unit all are electrically connected to described control unit, and described circuit control unit, Hall element and detecting signal unit are electrically connected to successively;
Described circuit control unit is used for: according to the order of control unit, control Hall element conducting or cut-off;
Described detecting signal unit is used for: the voltage signal while detecting described circuit control unit control Hall element conducting and cut-off also sends to control unit by the voltage signal detected.
3. the checking system of unblanking as claimed in claim 2, it is characterized in that, described circuit control unit comprises: the first aerotron, the 5th resistance, the 6th resistance and circuit are controlled mouth, described the 5th resistance is connected on described circuit and controls between the base stage of mouth and the first aerotron, described the 6th resistance is connected between the emitter and base stage of described the first aerotron, the power supply of be connected with+5V of the emitter of described the first aerotron, described circuit is controlled that mouth is connected with described control unit and is ended or conducting to control the first aerotron for the voltage of the base stage input+5V to the first aerotron or 0V.
4. the checking system of unblanking as claimed in claim 3, it is characterized in that, described Hall element comprises the second aerotron, the first electric capacity and the second electric capacity, the base stage of described the second aerotron is connected with the collecting electrode of described the first aerotron, described the first electric capacity is connected between the base stage and emitter of described the second aerotron, described the second electric capacity is connected between the collector and emitter of described the second aerotron, the grounded emitter of described the second aerotron.
5. the checking system of unblanking as claimed in claim 4, it is characterized in that, the described checking system of unblanking also comprises the 4th resistance, described detecting signal unit and the 4th resistance are connected between the collecting electrode of described control unit and the second aerotron successively, described detecting signal unit comprises first detection port of parallel series between described the 4th resistance and control unit, the second detection port and the 3rd detection port, described the first detection port, be in series with respectively the first resistance between the second detection port and the 3rd detection port and described the 4th resistance, the second resistance and the 3rd resistance,
Described control unit is used for:
Control mouthful control first aerotron conducting and a cut-off by circuit,
Respectively to any two the detection port input+5V in the first detection port, the second detection port and the 3rd detection port and the voltage of 0V, and by the 3rd detection port detectable voltage signals,
Control successively the first detection port, the second detection port and the 3rd detection port detectable voltage signals,
The all voltage signals that detect according to the first detection port, the second detection port and the 3rd detection port judge that whether described Hall element circuit is abnormal:
The information that the feedback Lenkradschlossvorrichtung is unblanked failure when described Hall element circuit abnormality;
When described Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking.
6. the checking system of unblanking as claimed in claim 5, is characterized in that, the resistance of described the first resistance, the second resistance, the 3rd resistance and the 4th resistance equates.
7. the checking system of unblanking as claimed in claim 6, is characterized in that, described control unit is used for:
Whether in the predefined first voltage range of control unit, judge that whether the Hall element circuit is abnormal according to detected all magnitudes of voltage;
And
While calculating respectively the first aerotron conducting and cut-off, the difference of the voltage of twice collection of same detection port,
Whether in the predefined second voltage scope of control unit, judge that whether described Hall element circuit is abnormal according to calculated voltage difference:
When detected all magnitudes of voltage all are positioned at first voltage range and all voltage differences of calculating while all being positioned at the second voltage scope, judgement Hall element circuit is without extremely;
When detected all magnitudes of voltage have at least all voltage differences that are not positioned at first voltage range or calculate to have at least one not to be positioned at the second voltage scope, judgement Hall element circuit abnormality.
8. the method for inspection of unblanking, for the checking system of unblanking, the described checking system of unblanking comprises control unit, Hall element and detecting unit, it is characterized in that, the described method of inspection of unblanking comprises:
Described control unit is controlled described Hall element conducting and cut-off;
Voltage signal when described detecting unit detects described Hall element conducting and cut-off;
The voltage signal that described control unit detects according to described detecting unit judges that whether described Hall element circuit is abnormal:
The information that the feedback Lenkradschlossvorrichtung is unblanked failure when described Hall element circuit abnormality;
When described Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking.
9. the method for inspection of unblanking as claimed in claim 8, it is characterized in that, the described checking system of unblanking also comprises the 4th resistance, described detecting unit comprises circuit control unit and detecting signal unit, described circuit control unit comprises circuit control mouth and the first aerotron, described detecting signal unit comprises the first detection port, the second detection port and the 3rd detection port, described the first detection port, be in series with respectively the first resistance between the second detection port and the 3rd detection port and described the 4th resistance, the second resistance and the 3rd resistance, the described method of inspection of unblanking comprises:
Control mouthful control first aerotron conducting and a cut-off by circuit,
Respectively to any two the detection port input+5V in the first detection port, the second detection port and the 3rd detection port and the voltage of 0V, and by the 3rd detection port detectable voltage signals,
Control successively the first detection port, the second detection port and the 3rd detection port detectable voltage signals,
The all voltage signals that detect according to the first detection port, the second detection port and the 3rd detection port judge that whether described Hall element circuit is abnormal:
The information that the feedback Lenkradschlossvorrichtung is unblanked failure when described Hall element circuit abnormality;
When described Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking.
10. the method for inspection of unblanking as claimed in claim 9, is characterized in that, the resistance of described the first resistance, the second resistance, the 3rd resistance and the 4th resistance is equal, and the described method of inspection of unblanking comprises:
Whether in the predefined first voltage range of control unit, judge that whether the Hall element circuit is abnormal according to detected all magnitudes of voltage;
And
While calculating respectively the first aerotron conducting and cut-off, the difference of the voltage of twice collection of same detection port,
Whether in the predefined second voltage scope of control unit, judge that whether described Hall element circuit is abnormal according to calculated voltage difference:
When detected all magnitudes of voltage all are positioned at first voltage range and all voltage differences of calculating while all being positioned at the second voltage scope, judgement Hall element circuit is without extremely;
When detected all magnitudes of voltage have at least all voltage differences that are not positioned at first voltage range or calculate to have at least one not to be positioned at the second voltage scope, judgement Hall element circuit abnormality.
11. Lenkradschlossvorrichtung, is characterized in that, described Lenkradschlossvorrichtung comprises the described checking system of unblanking of any one in claim 1-7.
12. Lenkradschlossvorrichtung as claimed in claim 11, it is characterized in that, described Lenkradschlossvorrichtung also comprises: motor, transfer device, magnet and for locking the locking bar of steering shaft, described motor drives described locking bar by transfer device and has moved to unblank or locking, described magnet moves with described locking bar, when the close described Hall element of described magnet, described Hall element conducting, the control unit of the described checking system of unblanking is controlled described Hall element conducting and cut-off;
Voltage signal when described detecting unit detects described Hall element conducting and cut-off;
The voltage signal that described control unit detects according to described detecting unit judges that whether described Hall element circuit is abnormal:
The information that the feedback Lenkradschlossvorrichtung is unblanked failure when described Hall element circuit abnormality;
When described Hall element circuit feedback Lenkradschlossvorrichtung when abnormal successful information of unblanking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010245195.8A CN102343885B (en) | 2010-07-30 | 2010-07-30 | Unlocking detection system and method, and steering locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010245195.8A CN102343885B (en) | 2010-07-30 | 2010-07-30 | Unlocking detection system and method, and steering locking device |
Publications (2)
| Publication Number | Publication Date |
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| CN102343885A CN102343885A (en) | 2012-02-08 |
| CN102343885B true CN102343885B (en) | 2014-01-01 |
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| CN201010245195.8A Active CN102343885B (en) | 2010-07-30 | 2010-07-30 | Unlocking detection system and method, and steering locking device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104973009A (en) * | 2014-04-14 | 2015-10-14 | 江苏浩昱驰汽车电子有限公司 | Method for controlling electronic steering column lock |
| CN112213965A (en) * | 2019-07-10 | 2021-01-12 | 佛山市顺德区美的电热电器制造有限公司 | Port detection device and method and cooking appliance |
| CN111862410A (en) * | 2020-06-30 | 2020-10-30 | 北京骑胜科技有限公司 | Intelligent lock control method, device, equipment and storage medium |
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| US5892443A (en) * | 1997-01-25 | 1999-04-06 | Kiekert Ag | Vehicle door lock with a latch system and a locking system and electronic control |
| CN1978253A (en) * | 2005-12-05 | 2007-06-13 | 株式会社S&T大宇 | Electronic steering pipe post locking device its control method |
| CN101625373A (en) * | 2009-08-04 | 2010-01-13 | 上海汽车集团股份有限公司 | Device and method for judging and detecting signals of rotational speed sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19539458A1 (en) * | 1995-10-24 | 1997-04-30 | Bosch Gmbh Robert | Self-testing Hall sensor, e.g for vehicle steering angle monitor |
| US5892443A (en) * | 1997-01-25 | 1999-04-06 | Kiekert Ag | Vehicle door lock with a latch system and a locking system and electronic control |
| CN1978253A (en) * | 2005-12-05 | 2007-06-13 | 株式会社S&T大宇 | Electronic steering pipe post locking device its control method |
| CN101625373A (en) * | 2009-08-04 | 2010-01-13 | 上海汽车集团股份有限公司 | Device and method for judging and detecting signals of rotational speed sensor |
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| CN102343885A (en) | 2012-02-08 |
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