CN208539554U - A kind of electric tail gate fission lock control circuit having short-circuit protection function - Google Patents
A kind of electric tail gate fission lock control circuit having short-circuit protection function Download PDFInfo
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- CN208539554U CN208539554U CN201821061585.8U CN201821061585U CN208539554U CN 208539554 U CN208539554 U CN 208539554U CN 201821061585 U CN201821061585 U CN 201821061585U CN 208539554 U CN208539554 U CN 208539554U
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- 230000005669 field effect Effects 0.000 claims description 14
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Abstract
The utility model discloses a kind of electric tail gate fission lock control circuits for having short-circuit protection function; the H-bridge circuit for driving motor of locking is connect including unlocking motor, locking motor and with locking motor; unlocking motor (+) and locking motor (+) share flash/low side control, and unlocking motor (-) is controlled using low side/flash.It adds short-circuit protection function on the basis of not increasing cost, to unlocking motor (-), increases product safety in utilization.
Description
Technical field
The utility model relates to the control field of electric back door unlocking motor, in particular to one kind has short-circuit protection function
Electric tail gate fission lock control circuit.
Background technique
Existing electric back door unlocking motor control mode are as follows: unlocking motor (+) is controlled using flash, has short-circuit protection function
Can, and unlocking motor (-) is not controlled, and short-circuit protection can not be carried out when with power supply short circuit, there are safety problems.Referring to
Fig. 1, when power ground picks up body, if when unlocking motor (-) and power supply short circuit, can not carry out short-circuit protection, generation high current is deposited
In the risk for burning body shear.Referring to fig. 2, when power ground meets ECU, if unlocking motor (-) is with power supply short circuit, Wu Fajin
Row short-circuit protection generates high current, and there are the risks of ECU permanent damage.Switching tube Q1-Q4 or Q6-Q7 only control locking electricity
Machine, Q5 or Q10 only control unlocking motor, and control result is that unlocking motor (-) does not have short-circuit protection.
Summary of the invention
The purpose of this utility model is to provide a kind of electricity for having short-circuit protection function for the corresponding deficiency of the prior art
Dynamic tail-gate fission lock control circuit adds short-circuit protection function to unlocking motor (-), increases on the basis of not increasing cost
Product safety in utilization.
The purpose of this utility model is realized using following proposal: a kind of electric tail gate having short-circuit protection function point
Body lock control circuit is connect including unlocking motor, locking motor and with locking motor for driving the H bridge of locking motor electric
The anode on road, the unlocking motor is electrically connected with a motor connecting pin of one end of locking motor or H-bridge circuit, the unlock electricity
It is equipped with low side between the cathode and power ground of machine and drives controllable switch, when unlocking motor cathode and power supply short circuit, passes through low side
Controllable switch is driven to carry out open circuit protection.
The control terminal IN5 of the low side driving controllable switch is connect with electronic control unit ECU, passes through electronic control unit
ECU controls the conducting and disconnection of low side driving controllable switch；Low side driving controllable switch uses switching tube Q15, switching tube Q15's
The connection of the cathode of source electrode or emitter and unlocking motor, the drain electrode of switching tube Q15 or collector connect power ground, switching tube Q15
Grid or base stage connect with electronic control unit ECU, through and off are led by electronic control unit ECU control switch pipe Q15
It opens.The function that the switching tube Q11-Q15 of this patent needs Collaborative Control to realize that locking unlocks, by sharing flash/low side, not
Increase and protection is increased to unlocking motor (-) on cost basis.
A kind of electric tail gate fission lock control circuit having short-circuit protection function, including unlocking motor, locking motor with
And the H-bridge circuit for driving locking motor is connect with locking motor, the cathode of the unlocking motor and one end of locking motor
Or the motor connecting pin electrical connection of H-bridge circuit, it is controllable that flash driving is equipped between the anode and power supply VCC of the unlocking motor
Switch drives controllable switch to carry out open circuit protection when unlocking motor anode and power supply short circuit by high-low side.
The control terminal IN5 of the flash driving controllable switch is connect with electronic control unit ECU, passes through electronic control unit
ECU controls the conducting and disconnection of flash driving controllable switch；Flash drives controllable switch to use switching tube Q20, switching tube Q20's
The anode of drain electrode or collector and unlocking motor connects, and the source electrode or emitter of switching tube Q20 is connect with power supply VCC, switching tube
The grid or base stage of Q20 is connect with electronic control unit ECU, by the conducting of electronic control unit ECU control switch pipe Q20 with
It disconnects.
A kind of electric tail gate fission lock control circuit having short-circuit protection function, including H-bridge circuit and controllable hilted broadsword
Commutator, the moved end of controllable single-pole double-throw switch (SPDT) and the first motor connecting pin of H-bridge circuit connect, controllable single-pole double-throw switch (SPDT)
The first non-moving end and one end of unlocking motor connect, the second motor connecting pin of the other end of unlocking motor and H-bridge circuit connects
It connects, the second non-moving end of controllable single-pole double-throw switch (SPDT) is connect with one end of locking motor, the other end and H-bridge circuit of motor of locking
The second motor connecting pin connection.
The unlocking motor, the positive of locking motor connect with the second motor connecting pin of H-bridge circuit, the unlock electricity
Machine, lock motor cathode connect respectively with the first non-moving end of controllable single-pole double-throw switch (SPDT), the second non-moving end.
The unlocking motor, motor of locking cathode connect with the second motor connecting pin of H-bridge circuit, the unlock is electric
Machine, the positive of locking motor connect with the first non-moving end of controllable single-pole double-throw switch (SPDT), the second non-moving end respectively.
The control terminal IN5 of the controllable single-pole double-throw switch (SPDT) is connect with electronic control unit ECU, passes through electronic control unit
ECU controls the conducting and disconnection of controllable single-pole double-throw switch (SPDT)；Controllable single-pole double-throw switch (SPDT) has resistance to high-rate performance；Controllable hilted broadsword
Commutator uses switch chip or relay, but controllable single-pole double-throw switch (SPDT) is not limited to switch chip or relay, mainly
Need to meet the needs of electric current.When such as using relay, such as: the unit cell relay G8K-17R of Omron, the unit cell of macro hair after
Electric appliance HFKF/12-1ZPT.The possible higher cost of switch chip, can be using 8962 control chips.
The power end of the H-bridge circuit connects power supply VCC, and the ground terminal of H-bridge circuit connects power ground, the H-bridge circuit
Four control terminals IN1, IN2, IN3, IN4 and electronic control unit ECU connection, H is controlled by electronic control unit ECU respectively
The conducting and disconnection of four switching tubes of bridge circuit；Switching tube uses field-effect tube；H-bridge circuit uses full-bridge chip or two and half
Bridge chip.
Power ground meets ECU or power ground picks up body lateral circuit, and vehicle body lateral circuit is connect with ECU.
The utility model has the advantage, that the utility model using the control mode for improving electric back door lock motor, makes
Unlocking motor (+) and locking motor (+) share flash, unlocking motor (-) plus low side protection chip or unlocking motor (+) and
Locking motor (+) shares low side, and unlocking motor (-) protects chip plus flash, on the basis of not increasing cost, to unlock electricity
Machine (-) adds short-circuit protection function, and this patent needs Collaborative Control 5 switching tubes such as Q11-Q15 to realize the function of locking and unlock,
By sharing flash/low side, protection is increased to unlocking motor (-) on cost basis not increasing, lock motor is increased and uses
Safety, to promote PTG entirety safety in utilization.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of embodiment of existing electric back door unlocking motor control mode；
Fig. 2 is the schematic diagram of another embodiment of existing electric back door unlocking motor control mode；
Fig. 3 is the embodiment 1 of the electric tail gate fission lock control circuit for having short-circuit protection function of the utility model
Circuit diagram；
Fig. 4 is the embodiment 2 of the electric tail gate fission lock control circuit for having short-circuit protection function of the utility model
Circuit diagram；
Fig. 5 is the embodiment 3 of the electric tail gate fission lock control circuit for having short-circuit protection function of the utility model
Circuit diagram.
Specific embodiment
Embodiment 1
Referring to Fig. 3, a kind of electric tail gate fission lock control circuit having short-circuit protection function, one kind having short-circuit protection
The electric tail gate fission lock control circuit of function, including unlocking motor, locking motor and with locking motor connect for driving
The H-bridge circuit of locking motor, the motor connecting pin electricity of the anode of the unlocking motor and one end of locking motor or H-bridge circuit
Connection is equipped with low side and drives controllable switch, when unlocking motor cathode and power supply between the cathode and power ground of the unlocking motor
When short-circuit, controllable switch is driven to carry out open circuit protection by low side.
The control terminal IN5 of the low side driving controllable switch is connect with electronic control unit ECU, passes through electronic control unit
ECU controls the conducting and disconnection of low side driving controllable switch；Low side driving controllable switch uses switching tube Q15, switching tube Q15's
The connection of the cathode of source electrode or emitter and unlocking motor, the drain electrode of switching tube Q15 or collector connect power ground, switching tube Q15
Grid or base stage connect with electronic control unit ECU, through and off are led by electronic control unit ECU control switch pipe Q15
It opens.
The power end of the H-bridge circuit connects power supply VCC, and the ground terminal of H-bridge circuit connects power ground, the H-bridge circuit
Four control terminals IN1, IN2, IN3, IN4 and electronic control unit ECU connection, H is controlled by electronic control unit ECU respectively
The conducting and disconnection of four switching tubes of bridge circuit；Switching tube uses field-effect tube；H-bridge circuit uses full-bridge chip or two and half
Bridge chip.
Power ground meets ECU or power ground picks up body lateral circuit, and vehicle body lateral circuit is connect with ECU.
Unlocking motor (+) and locking motor (+) share flash, and unlocking motor (-) protects chip such as field-effect plus low side
Pipe Q15 carries out open circuit protection by low side IC, ensures safety in utilization.
Working principle is as follows:
Flash shares:
Chip (ECU of electric tail gate) controls field-effect tube Q12, field-effect tube Q13 and is connected, control field-effect tube Q11,
When Q14, Q15 are disconnected, locking motor is rotated forward；
Chip (ECU of electric tail gate) controls the conducting of field-effect tube Q11, Q14, when field-effect tube Q12, Q13, Q15 are disconnected,
Locking motor reversal；
Chip (ECU of electric tail gate) controls field-effect tube Q11, Q13, Q14 and disconnects, when Q12, Q15 are connected, unlocking motor
Movement.
The function that this patent needs Collaborative Control 5 switching tubes such as Q11-Q15 to realize that locking unlocks.
Embodiment 2
Referring to fig. 4, a kind of electric tail gate fission lock control circuit having short-circuit protection function, including unlocking motor, on
It locks motor and connect the H-bridge circuit for driving locking motor, the cathode of the unlocking motor and electricity of locking with locking motor
One end of machine or the motor connecting pin electrical connection of H-bridge circuit, are equipped with flash between the anode and power supply VCC of the unlocking motor
Controllable switch is driven, when unlocking motor anode and power supply short circuit, drives controllable switch to carry out open circuit protection by high-low side.
The control terminal IN5 of the flash driving controllable switch is connect with electronic control unit ECU, passes through electronic control unit
ECU controls the conducting and disconnection of flash driving controllable switch；Flash drives controllable switch to use switching tube Q20, switching tube Q20's
The anode of drain electrode or collector and unlocking motor connects, and the source electrode or emitter of switching tube Q20 is connect with power supply VCC, switching tube
The grid or base stage of Q20 is connect with electronic control unit ECU, by the conducting of electronic control unit ECU control switch pipe Q20 with
It disconnects.
The power end of the H-bridge circuit connects power supply VCC, and the ground terminal of H-bridge circuit connects power ground, the H-bridge circuit
Four control terminals IN1, IN2, IN3, IN4 and electronic control unit ECU connection, H is controlled by electronic control unit ECU respectively
The conducting and disconnection of four switching tubes of bridge circuit；Switching tube uses field-effect tube；H-bridge circuit uses full-bridge chip or two and half
Bridge chip.
Power ground meets ECU or power ground picks up body lateral circuit, and vehicle body lateral circuit is connect with ECU.
Unlocking motor (+) and locking motor (+) share low side, and unlocking motor (-) protects chip such as field-effect plus flash
Pipe Q20 can be protected by full-bridge or half bridge chip and flash chip.
Working principle is as follows:
Flash shares:
Chip (ECU of electric tail gate) controls Q17, and Q18 conducting, Q16, Q19, when Q20 is disconnected, locking motor is rotated forward；
Chip (ECU of electric tail gate) controls Q16, and Q19 is connected, Q17, Q18, when Q20 is disconnected, motor reversal of locking；
Chip (ECU of electric tail gate) controls Q19, and Q20 conducting, Q16, Q18, when Q17 is disconnected, unlocking motor is acted.
The function that this patent needs Collaborative Control 5 switching tubes such as Q17-Q20 to realize that locking unlocks.
Unlocking motor (+) and locking motor (+) share flash/low side control, and unlocking motor (-) uses low side/flash control
System.Since lock motor characteristic determines locking motor and unlocking motor there is no moving at the same time, same flash is believed
Number or same low side signals simultaneously control two lock motors be feasible.
Embodiment 3
Referring to Fig. 5, a kind of electric tail gate fission lock control circuit having short-circuit protection function, including H-bridge circuit and
Controllable single-pole double-throw switch (SPDT), the moved end of controllable single-pole double-throw switch (SPDT) and the first motor connecting pin of H-bridge circuit connect, controllable hilted broadsword
First non-moving end of commutator and one end of unlocking motor connect, the other end of unlocking motor and the second motor of H-bridge circuit
Second non-moving end of connecting pin connection, controllable single-pole double-throw switch (SPDT) is connect with one end of locking motor, the other end for motor of locking
It is connect with the second motor connecting pin of H-bridge circuit.
The unlocking motor, the positive of locking motor connect with the second motor connecting pin of H-bridge circuit, the unlock electricity
Machine, lock motor cathode connect respectively with the first non-moving end of controllable single-pole double-throw switch (SPDT), the second non-moving end.
The unlocking motor, motor of locking cathode connect with the second motor connecting pin of H-bridge circuit, the unlock is electric
Machine, the positive of locking motor connect with the first non-moving end of controllable single-pole double-throw switch (SPDT), the second non-moving end respectively.
The control terminal IN5 of the controllable single-pole double-throw switch (SPDT) is connect with electronic control unit ECU, passes through electronic control unit
ECU controls the conducting and disconnection of controllable single-pole double-throw switch (SPDT)；Controllable single-pole double-throw switch (SPDT) has resistance to high-rate performance；Controllable hilted broadsword
Commutator uses switch chip or relay, but controllable single-pole double-throw switch (SPDT) is not limited to switch chip or relay, mainly
Need to meet the needs of electric current.When such as using relay, such as: the unit cell relay G8K-17R of Omron, the unit cell of macro hair after
Electric appliance HFKF/12-1ZPT.The possible higher cost of switch chip, can be using 8962 control chips.
The power end of the H-bridge circuit connects power supply VCC, and the ground terminal of H-bridge circuit connects power ground, the H-bridge circuit
Four control terminals IN1, IN2, IN3, IN4 and electronic control unit ECU connection, H is controlled by electronic control unit ECU respectively
The conducting and disconnection of four switching tubes of bridge circuit；Switching tube uses field-effect tube；H-bridge circuit uses full-bridge chip or two and half
Bridge chip.
Power ground meets ECU or power ground picks up body lateral circuit, and vehicle body lateral circuit is connect with ECU.
Lock with several separated loching head locking unlock independent control, effect is better than integrated lock, due to Lock with several separated loching head there are two motor (unlocking motor and
Locking motor) different function is executed respectively, it is therefore desirable to two-way control.This patent is using unlocking motor (+) and locking motor (+)
Flash control is shared, motor (-) of locking and unlocking motor (-) share low side control, pass through the single-pole double-throw switch (SPDT) of resistance to high current
Control unlocking motor and locking motor work.
When motor of locking works, the single-pole double-throw switch (SPDT) conducting locking motor of resistance to high current；It is resistance to big when unlocking motor works
Unlocking motor is connected in the single-pole double-throw switch (SPDT) of electric current.
Since the existing single-pole double-throw switch (SPDT) of resistance to high current compares field-effect tube higher cost, the side of Examples 1 and 2
Case is more excellent scheme, and by the scheme of Examples 1 and 2, modification to lock circuit for controlling motor can reach and not increase cost
On the basis of, increase lock motor safety in utilization, to promote PTG entirety safety in utilization.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, it is clear that this field
Technical staff various modification and variations can be carried out to the utility model without departing from the spirit and scope of the utility model.This
Sample, if these modifications and variations of the present invention belong to the claims of the present invention and its equivalent technology range it
Interior, then the utility model is also intended to include these modifications and variations.
Claims (10)
1. a kind of electric tail gate fission lock control circuit for having short-circuit protection function, it is characterised in that: including unlocking motor, on
It locks motor and connect the H-bridge circuit for driving locking motor with locking motor, the anode and locking electricity of the unlocking motor
One end of machine or the motor connecting pin electrical connection of H-bridge circuit, are equipped with low side between the cathode and power ground of the unlocking motor
Controllable switch is driven, when unlocking motor cathode and power supply short circuit, drives controllable switch to carry out open circuit protection by low side.
2. the electric tail gate fission lock control circuit according to claim 1 for having short-circuit protection function, it is characterised in that:
The control terminal IN5 of the low side driving controllable switch is connect with electronic control unit ECU, is controlled by electronic control unit ECU
The conducting and disconnection of low side driving controllable switch；Low side driving controllable switch uses switching tube Q15, the source electrode of switching tube Q15 or
The connection of the cathode of emitter and unlocking motor, the drain electrode of switching tube Q15 or collector connect power ground, the grid of switching tube Q15
Or base stage is connect with electronic control unit ECU, passes through the conducting and disconnection of electronic control unit ECU control switch pipe Q15.
3. a kind of electric tail gate fission lock control circuit for having short-circuit protection function, it is characterised in that: including unlocking motor, on
It locks motor and connect the H-bridge circuit for driving locking motor, the cathode of the unlocking motor and electricity of locking with locking motor
One end of machine or the motor connecting pin electrical connection of H-bridge circuit, are equipped with flash between the anode and power supply VCC of the unlocking motor
Controllable switch is driven, when unlocking motor anode and power supply short circuit, drives controllable switch to carry out open circuit protection by high-low side.
4. the electric tail gate fission lock control circuit according to claim 3 for having short-circuit protection function, it is characterised in that:
The control terminal IN5 of the flash driving controllable switch is connect with electronic control unit ECU, is controlled by electronic control unit ECU
The conducting and disconnection of flash driving controllable switch；Flash drive controllable switch use switching tube Q20, the drain electrode of switching tube Q20 or
The anode of collector and unlocking motor connects, and the source electrode or emitter of switching tube Q20 is connect with power supply VCC, the grid of switching tube Q20
Pole or base stage are connect with electronic control unit ECU, pass through the conducting and disconnection of electronic control unit ECU control switch pipe Q20.
5. a kind of electric tail gate fission lock control circuit for having short-circuit protection function, it is characterised in that: including H-bridge circuit and
Controllable single-pole double-throw switch (SPDT), the moved end of controllable single-pole double-throw switch (SPDT) and the first motor connecting pin of H-bridge circuit connect, controllable hilted broadsword
First non-moving end of commutator and one end of unlocking motor connect, the other end of unlocking motor and the second motor of H-bridge circuit
Second non-moving end of connecting pin connection, controllable single-pole double-throw switch (SPDT) is connect with one end of locking motor, the other end for motor of locking
It is connect with the second motor connecting pin of H-bridge circuit.
6. the electric tail gate fission lock control circuit according to claim 5 for having short-circuit protection function, it is characterised in that:
The unlocking motor, the positive of locking motor connect with the second motor connecting pin of H-bridge circuit, the unlocking motor, locking
The cathode of motor is connect with the first non-moving end of controllable single-pole double-throw switch (SPDT), the second non-moving end respectively.
7. the electric tail gate fission lock control circuit according to claim 5 for having short-circuit protection function, it is characterised in that:
The unlocking motor, lock motor cathode connect with the second motor connecting pin of H-bridge circuit, the unlocking motor, locking
The anode of motor is connect with the first non-moving end of controllable single-pole double-throw switch (SPDT), the second non-moving end respectively.
8. the electric tail gate fission lock control circuit according to claim 5 for having short-circuit protection function, it is characterised in that:
The control terminal IN5 of the controllable single-pole double-throw switch (SPDT) is connect with electronic control unit ECU, is controlled by electronic control unit ECU
The conducting and disconnection of controllable single-pole double-throw switch (SPDT)；Controllable single-pole double-throw switch (SPDT) has resistance to high-rate performance；Controllable single-pole double throw is opened
It closes and uses switch chip or relay.
9. have the electric tail gate fission lock control circuit of short-circuit protection function described according to claim 1 or 3 or 5, it is special
Sign is: the power end of the H-bridge circuit connects power supply VCC, and the ground terminal of H-bridge circuit connects power ground, the H-bridge circuit
Four control terminals IN1, IN2, IN3, IN4 and electronic control unit ECU connection, control H bridge by electronic control unit ECU respectively
The conducting and disconnection of four switching tubes of circuit；Switching tube uses field-effect tube；H-bridge circuit uses full-bridge chip or two half-bridges
Chip.
10. have the electric tail gate fission lock control circuit of short-circuit protection function described according to claim 1 or 3 or 5, it is special
Sign is: power ground meets ECU or power ground picks up body lateral circuit, and vehicle body lateral circuit is connect with ECU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821061585.8U CN208539554U (en) | 2018-07-05 | 2018-07-05 | A kind of electric tail gate fission lock control circuit having short-circuit protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821061585.8U CN208539554U (en) | 2018-07-05 | 2018-07-05 | A kind of electric tail gate fission lock control circuit having short-circuit protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208539554U true CN208539554U (en) | 2019-02-22 |
Family
ID=65386671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821061585.8U Active CN208539554U (en) | 2018-07-05 | 2018-07-05 | A kind of electric tail gate fission lock control circuit having short-circuit protection function |
Country Status (1)
| Country | Link |
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| CN (1) | CN208539554U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499996A (en) * | 2019-08-28 | 2019-11-26 | 芜湖莫森泰克汽车科技股份有限公司 | A kind of electric tail gate control circuit |
| CN112803840A (en) * | 2021-02-02 | 2021-05-14 | 上海高仙自动化科技发展有限公司 | Motor control device, system, method and storage medium |
-
2018
- 2018-07-05 CN CN201821061585.8U patent/CN208539554U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499996A (en) * | 2019-08-28 | 2019-11-26 | 芜湖莫森泰克汽车科技股份有限公司 | A kind of electric tail gate control circuit |
| CN112803840A (en) * | 2021-02-02 | 2021-05-14 | 上海高仙自动化科技发展有限公司 | Motor control device, system, method and storage medium |
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