CN106199322B - A kind of detecting system and detection method of on-board high-voltage parts interlocking signal - Google Patents
A kind of detecting system and detection method of on-board high-voltage parts interlocking signal Download PDFInfo
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- CN106199322B CN106199322B CN201610582071.6A CN201610582071A CN106199322B CN 106199322 B CN106199322 B CN 106199322B CN 201610582071 A CN201610582071 A CN 201610582071A CN 106199322 B CN106199322 B CN 106199322B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
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- Life Sciences & Earth Sciences (AREA)
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- Transportation (AREA)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a kind of detecting system and detection method of on-board high-voltage parts interlocking signal, the detecting system includes：Entire car controller equipped with outer detecting circuit and the multiple and concatenated high voltage parts of the entire car controller, each high voltage parts are interior to be equipped with detection circuit, driving circuit and output circuit.The present invention has decoupled the detection to interlock and the output of interlocking signal, and the maintainability and compatibility of high voltage parts are improved with this, and circuit structure design is succinct, small, at low cost, highly practical.
Description
Technical field
The present invention relates to vehicle component field more particularly to a kind of detecting systems of on-board high-voltage parts interlocking signal
With the detection method based on the detecting system.
Background technology
With the development of electric vehicle parts, the safe and reliable connectivity problem of on-board high-voltage parts enters vehicle work(
In energy demand.The interlock of high-voltage connector becomes one of critical function of high-voltage connector.When high-voltage connector can
When by connection, interlock is closed state, is off-state when being not connected with or connecting abnormal.Conventional processing mode is to incite somebody to action
The interlock of each parts directly is together in series to form interlocking signal on vehicle, is believed to detect this interlocking by entire car controller
Number state.Under this processing mode, when interlocking signal failure, the effective position difficulty of fault point is larger.The processing of optimization
Mode is that each parts detect respective interlock and report, each parts and the detection electricity inside entire car controller
Unified link up in road matches, it is ensured that is independent of each other.However in existing processing circuit, detection circuit and the output circuit degree of coupling
Height needs to carry out cooperation work with the internal detection circuitry of other parts and entire car controller etc., poor compatibility, with
The type for on-board high-voltage parts is more and more, and the compatibility between interlocking signal processing circuit becomes urgently to be resolved hurrily and asks
Topic.
Invention content
To solve above-mentioned problems of the prior art, the present invention proposes a kind of on-board high-voltage parts interlocking signal
Detecting system and detection method.
The detecting system of on-board high-voltage parts interlocking signal proposed by the present invention includes：Equipped with the whole of outer detecting circuit
Vehicle controller and the multiple and concatenated high voltage parts of the entire car controller, each high voltage parts are interior to be equipped with detection circuit, drives
Dynamic circuit and output circuit while the detection circuit detects interlock, the state of interlock are sent to described
Driving circuit and control the working condition of the driving circuit, when external interlock device is closed, driving circuit passes through one and becomes
Depressor transmits the conducting of energy hole output circuit, to export the state of a closure to entire car controller；When external interlock shape
When state disconnects, the transformer in driving circuit can not transmit energy to output circuit, and output circuit exports the state of a disconnection
To entire car controller.
The detection circuit connect with the first port S_A of the interlock and by first resistor R1 and DC power supply
Connection；The driving circuit is connect by the grid of the first metal-oxide-semiconductor Q1 with the first port S_A of the interlock, the first MOS
The source electrode of pipe is connect by a signal generator SG with ground wire, and the drain electrode of the first metal-oxide-semiconductor is divided into two-way, passes through concatenated all the way
The primary coil of one capacitance C1 and transformer T is connect with ground wire, and another way is connect by the first diode D1 with ground wire, described mutual
The second port S_B of locking device is connect by the second resistance R2 of detection circuit with ground wire, and the output circuit includes the second He
Third metal-oxide-semiconductor (Q2, Q3), the first secondary coil of the transformer connect it is in parallel with the second capacitance C2 after the second diode D2 after
It connect with the second metal-oxide-semiconductor of the output circuit, is exported as signal, the second subprime coil series connection the three or two of the transformer
It connect with the third metal-oxide-semiconductor of the output circuit with after third capacitance C3 parallel connections after pole pipe D3, is exported as signal.
In one embodiment, the driving circuit further includes second to the 4th resistance R2, R3, R4, and second resistance R2 is in parallel
Between the grid and source electrode of the first metal-oxide-semiconductor Q1,3rd resistor R3 is connected in parallel on the both ends of the second capacitance C2, the 4th resistance R4
It is connected in parallel on the both ends of third capacitance C3.
In one embodiment, the driving circuit further include the four, the 5th capacitance C4, C5 and the four, the 5th diode D4,
D5, the 4th capacitance C4 are connected between the first secondary coil of the transformer T and the second diode D2, the 4th diode
The cathode of D4 is connected between the 4th capacitance C4 and the connecting line of the second diode D2, and anode is connected to the of the transformer T
The other end of one secondary coil, the 5th capacitance C5 be connected on the first secondary coil of the transformer T and third diode D3 it
Between, the cathode of the 5th diode D5 is connected between the 5th capacitance C5 and the connecting line of the second triode D3, anode connection
In the other end of the second subprime coil of the transformer T.
In one embodiment, the signal generator SG is square-wave pulse signal generator, and the first metal-oxide-semiconductor Q1 is P
Channel MOS tube, described second, third metal-oxide-semiconductor Q2, Q3 are N-channel MOS pipe.
The present invention also proposes a kind of detection method of on-board high-voltage parts interlocking signal, includes the following steps：
（1）Multiple high voltage parts are connected with the entire car controller for being equipped with outer detecting circuit；
（2）Detection circuit, driving circuit and output circuit are equipped in each high voltage parts, detection circuit detection is mutual
Locking device, the interlocking state of interlock is sent to the driving circuit and control the working condition of the driving circuit from
And control the working condition of the output circuit；
（3）When external interlock device is closed, driving circuit transmits energy hole output circuit by a transformer and is connected,
To export the state of a closure to entire car controller；When external interlock state disconnects, transformer in driving circuit without
Method transmits energy to output circuit, and output circuit exports the state of a disconnection to entire car controller.
Compared with prior art, beneficial effects of the present invention are：It is decoupled using electronic components such as transformer and metal-oxide-semiconductors
The output of detection and interlocking signal to interlock makes the output circuit of interlocking signal rely on current high pressure zero without height
The processing circuit etc. in detection circuit and driving circuit and other high voltage parts and entire car controller in component makes mutually
Locking output signal has good compatibility, the effective maintainability and compatibility for promoting high voltage parts, and circuit knot
Structure design is succinct, small, at low cost, highly practical.
Description of the drawings
With reference to embodiment and attached drawing, the present invention is described in detail, wherein：
Fig. 1 is the application schematic diagram of the present invention；
Fig. 2 is the circuit module figure of present system；
Fig. 3 is the integrated circuit figure of the present invention.
Specific implementation mode
The detecting system of on-board high-voltage parts interlocking signal proposed by the present invention, including：Equipped with outer detecting circuit
Entire car controller and multiple with the concatenated high voltage parts of the entire car controller, be equipped in each high voltage parts detection circuit,
The state of interlock is sent to institute by driving circuit and output circuit while the detection circuit detects interlock
The driving circuit stated and the working condition for controlling the driving circuit, when external interlock device is closed, driving circuit passes through one
Transformer transmits the conducting of energy hole output circuit, to export the state of a closure to entire car controller；Work as external interlock
When state disconnects, the transformer in driving circuit can not transmit energy to output circuit, and output circuit exports the shape of a disconnection
State is to entire car controller.
Fig. 1 is the application schematic diagram of the present invention, and entire car controller is connected with each high voltage parts, entire car controller and each height
Detection circuit is equipped with inside pressure parts, in of the invention, the circuit in high voltage parts further includes having to connect with detection circuit
Driving circuit and output circuit.
Fig. 2 is the block diagram of the present invention, and external interlock device 201, detection circuit, driving circuit and output circuit connect successively
It connects, detection circuit detects the closure or off-state of external interlock device 201, and by the closure of interlock 201 or disconnects shape
State is transferred to driving circuit, and the corresponding two kinds of working conditions of driving circuit are controlled by the closure or off-state of interlock 201,
And the closure of output circuit is driven by driving circuit or is disconnected to export corresponding interlocking signal.
Fig. 3 is the circuit diagram of the present invention, including detection circuit 301, driving circuit 302, output circuit 303, the detection
Circuit 301 include a first resistor R1 and second resistance R2 and DC power supply VCC, the driving circuit 302 include third extremely
5th resistance R3, R4, R5, the first metal-oxide-semiconductor Q1, first to the 5th capacitance C1, C2, C3, C4, C5, the first to the 5th diode D1,
D2, D3, D4, D5 and a signal generator SG and a transformer T, the output circuit 303 include second, third metal-oxide-semiconductor
Q2、Q3；
The detection circuit connect with the first port S_A of the interlock and by first resistor R1 and DC power supply
VCC connections；The driving circuit is connect by the grid of the first metal-oxide-semiconductor Q1 with the first port S_A of the interlock, and first
The anode of the source electrode of metal-oxide-semiconductor Q1 and a signal generator SG are connect, and the drain electrode of the first metal-oxide-semiconductor Q1 is divided into two-way, all the way by the
One capacitance C1 is connect with the first end of the primary coil of a transformer T, and another way is connect with the cathode of the first diode D1, described
The second end of the primary coil of transformer T connect with the cathode of the anode of the first diode D1 and signal generator SG and is followed by
Ground, while passing through the second port S_B connections of the second resistance R2 of detection circuit and interlock, first grade of transformer T
The first end of coil is connect after being connect with the anode of the second diode D2 with the grid of the second metal-oxide-semiconductor Q2 of the output circuit,
The second end of the first secondary coil of transformer T is connect with the source electrode of the second metal-oxide-semiconductor Q2, and the second capacitance C2 is connected in parallel on the two or two pole
Between the cathode of pipe D2 and the second end of the first secondary coil of transformer T, the first end of the second subprime coil of transformer T with
It is connect with the grid of the third metal-oxide-semiconductor Q3 of the output circuit after the anode connection of third diode D3, second of transformer T
The second end of grade coil is connect with the source electrode of third metal-oxide-semiconductor Q3, and third capacitance C3 is connected in parallel on cathode and the change of third diode D3
Between the second end of the second subprime coil of depressor T, the source electrode of the second metal-oxide-semiconductor Q2 is connect with the source electrode of third metal-oxide-semiconductor Q3, the
Two, the drain electrode of third metal-oxide-semiconductor Q2, Q3 are as interlocking signal output end.Wherein, the magnetic energy of transformer T is converted to electric energy and can distinguish
It charges to second, third capacitance C2, C3 through second, third diode D2, D3, high voltage electric energy is stored in second, third capacitance
In C2, C3.
3rd resistor R3 is connected in parallel between the grid and source electrode of the first metal-oxide-semiconductor Q1, as the pull down resistor of the first metal-oxide-semiconductor,
4th resistance R4 is connected in parallel on the both ends of the second capacitance C2, and the 5th resistance R5 is connected in parallel on the both ends of third capacitance C3, respectively as
Two, the pull down resistor of third metal-oxide-semiconductor Q2, Q3.Pull down resistor is effectively protected as negative feedback resistor under AC signal effect
Metal-oxide-semiconductor.
4th capacitance C4 is connected between the first end of the first secondary coil of the transformer T and the second diode D2,
The cathode of 4th diode D4 is connected between the 4th capacitance C4 and the connecting line of the second diode D2, and anode is with transformer T's
The second end of first secondary coil connects, and the 5th capacitance C5 is connected on the first end and third of the first secondary coil of transformer T
Between diode D3, the cathode of the 5th diode D5 is connected between the 5th capacitance C5 and the connecting line of the second triode D3, just
Pole is connect with the second end of the second subprime coil of transformer T.By the way that the four, the 5th capacitance C4, C5 and the four, the 5th 2 are arranged
Pole pipe D4, D5 can reduce the coil turn of transformer, reduce the volume of transformer.
In the present embodiment, signal generator is the square-wave pulse signal generator that frequency is 500Hz, and power supply VCC is direct current
Power supply, the first metal-oxide-semiconductor Q1 are P-channel metal-oxide-semiconductor, when the potential difference between its grid and source electrode is negative, it will conducting, second,
Third metal-oxide-semiconductor Q2, Q3 are N-channel MOS pipe, when the potential difference between its grid and source electrode is timing, it will conducting.When work,
When interlock in the closure state, the first metal-oxide-semiconductor Q1 conducting, the square-wave pulse signal that signal generator is sent out can pass through
Transformer T is transferred to second, third metal-oxide-semiconductor Q2, Q3 of output circuit, second, third metal-oxide-semiconductor Q2, Q3 is connected at this time, by the
Two, the drain electrode of third metal-oxide-semiconductor Q2, Q3 export the closed state of interlock to entire car controller；When interlock is in disconnected
When open state, the first metal-oxide-semiconductor Q1 shutdowns, the access disconnection of signal generator SG and transformer T, can not believe square-wave pulse at this time
Number it is sent to transformer T, transformer T will not deliver power to output circuit at this time, i.e. second, third metal-oxide-semiconductor Q2, Q3 is in
The off-state of interlock is transmitted to entire car controller by off state by the drain electrode of second, third metal-oxide-semiconductor Q2, Q3.
The detection method of on-board high-voltage parts interlocking signal proposed by the present invention specifically includes the following steps：
（1）Multiple high voltage parts are connected with the entire car controller for being equipped with outer detecting circuit；
（2）Detection circuit, driving circuit and output circuit are equipped in each high voltage parts, detection circuit detection is mutual
Locking device, the interlocking state of interlock is sent to the driving circuit and control the working condition of the driving circuit from
And control the working condition of the output circuit；
（3）When external interlock device is closed, driving circuit transmits energy hole output circuit by a transformer and is connected,
To export the state of a closure to entire car controller；When external interlock state disconnects, transformer in driving circuit without
Method transmits energy to output circuit, and output circuit exports the state of a disconnection to entire car controller.
The present invention uses the electronic components such as a transformer and metal-oxide-semiconductor, and the AC signal sent out using signal generator
Coordinate the work of transformer, when interlock is closed, AC signal is transmitted to output circuit with the output phase by transformer
The closure interlocking signal answered, when interlock disconnects, AC signal can not be transmitted to transformer, and transformer can not be by direct current
Output circuit is transported in fax, that is, has cut off the connection of driving circuit and output circuit, at this point, entire car controller will receive disconnection
Interlocking signal.The present invention connects driving circuit and output circuit by a transformer, and metal-oxide-semiconductor is used to be used as output end
Electronic switch solves the detection of symplectic interlock and the output of interlocking signal with this, make the output circuit of interlocking signal without
Detection circuit in current high voltage parts and driving circuit and other high voltage parts and entire car controller need to highly be relied on
Interior processing circuit etc. makes interlocking output signal have good compatibility, the effective maintainability for promoting high voltage parts
And compatibility, and circuit structure design is succinct, small, at low cost, highly practical.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (4)
1. a kind of detecting system of on-board high-voltage parts interlocking signal, including：Entire car controller equipped with outer detecting circuit
With multiple with the concatenated high voltage parts of the entire car controller, which is characterized in that be equipped in each high voltage parts detection circuit,
The state of interlock is sent to institute by driving circuit and output circuit while the detection circuit detects interlock
The driving circuit stated and the working condition for controlling the driving circuit, when external interlock device is closed, driving circuit passes through one
Transformer transmits the conducting of energy hole output circuit, to export the state of a closure to entire car controller；Work as external interlock
When state disconnects, the transformer in driving circuit can not transmit energy to output circuit, and output circuit exports the shape of a disconnection
State is to entire car controller；The detection circuit connect with the first port S_A of the interlock and by first resistor R1 with
DC power supply connects；The driving circuit is connected by the grid of the first metal-oxide-semiconductor Q1 and the first port S_A of the interlock
It connects, the source electrode of the first metal-oxide-semiconductor is connect by a signal generator SG with ground wire, and the drain electrode of the first metal-oxide-semiconductor is divided into two-way, a-road-through
The primary coil for crossing concatenated first capacitance C1 and transformer T is connect with ground wire, and another way passes through the first diode D1 and ground wire
Connection, the second port S_B of the interlock are connect by the second resistance R2 of detection circuit with ground wire, the output circuit
Including second and third metal-oxide-semiconductor Q2, Q3, the first secondary coil of the transformer connect after the second diode D2 with the second capacitance
It connect, is exported as signal, the second subprime coil string of the transformer with the second metal-oxide-semiconductor of the output circuit after C2 parallel connections
It connect with the third metal-oxide-semiconductor of the output circuit with after third capacitance C3 parallel connections after connection third diode D3, is exported as signal.
2. detecting system as described in claim 1, which is characterized in that the driving circuit further includes the second to the 4th resistance
R2, R3, R4, second resistance are connected in parallel between the grid and source electrode of first metal-oxide-semiconductor, and 3rd resistor R3 is connected in parallel on described second
The both ends of capacitance, the 4th resistance R4 are connected in parallel on the both ends of the third capacitance.
3. detecting system as described in claim 1, which is characterized in that the driving circuit further include the four, the 5th capacitance C4,
C5 and the four, the 5th diode D4, D5, the 4th capacitance are connected on the first secondary coil and the second diode of the transformer T
Between D2, the cathode of the 4th diode is connected between the 4th capacitance and the connecting line of the second diode, and anode is connected to
The other end of the first secondary coil of the transformer T, the 5th capacitance C5 be connected on the first secondary coil of the transformer T with
Between third diode D3, the cathode of the 5th diode D5 is connected to the connecting line of the 5th capacitance C5 and the second triode D3
Between, anode is connected to the other end of the second subprime coil of the transformer T.
4. detecting system as described in claim 1, which is characterized in that the signal generator SG is square-wave pulse signal
Device, the first metal-oxide-semiconductor Q1 are P-channel metal-oxide-semiconductor, and described second, third metal-oxide-semiconductor Q2, Q3 are N-channel MOS pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610582071.6A CN106199322B (en) | 2016-07-22 | 2016-07-22 | A kind of detecting system and detection method of on-board high-voltage parts interlocking signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610582071.6A CN106199322B (en) | 2016-07-22 | 2016-07-22 | A kind of detecting system and detection method of on-board high-voltage parts interlocking signal |
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| CN106199322B true CN106199322B (en) | 2018-09-18 |
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| CN106885967A (en) * | 2017-03-09 | 2017-06-23 | 苏州汇川技术有限公司 | A kind of high-voltage interlocking detection means and method |
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| CN106199322A (en) | 2016-12-07 |
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