GB2557850A - Passenger vehicle door lock control device - Google Patents
Passenger vehicle door lock control device Download PDFInfo
- Publication number
- GB2557850A GB2557850A GB1806778.5A GB201806778A GB2557850A GB 2557850 A GB2557850 A GB 2557850A GB 201806778 A GB201806778 A GB 201806778A GB 2557850 A GB2557850 A GB 2557850A
- Authority
- GB
- United Kingdom
- Prior art keywords
- door
- control unit
- unlocking
- output terminal
- lock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00944—Details of construction or manufacture
Abstract
A door lock control device for a passenger vehicle having an ignition switch comprises: a door lock relay having two input terminals (A, B), a locking output terminal (C) and an unlocking output terminal (D); a main control unit (MCU) configured to provide an MCU-state signal indicating whether the MCU has failed and to input a logic control instruction to the two input terminals (A, B) of the door lock relay to control electrical levels at the locking and unlocking output terminals of the door lock relay; a forced unlocking module connected to the two input terminals (A, B) of the door lock relay and configured to receive an ON-state signal or an OFF-state signal of the ignition switch; and a system-basis chip (SCB) configured to receive the MCU-state signal and generate an unlocking enablement signal for the forced unlocking module upon failure of the MCU, wherein, when the forced unlocking module simultaneously receives the unlocking enablement signal and the OFF-state signal of the ignition switch, the door lock relay is forced to be unlocked.
Description
(56) Documents Cited:
CN 203321115 U CN 200992869 Y
CN 103266817 A JP 2003165416 A
US 20140159480 A1 (58) Field of Search:
INT CL E05B (71) Applicant(s):
United Automotive Electronic Systems Co.,Ltd (Incorporated in China)
No. 555 Rong Qiao Road, Pudong New Area, Shanghai 201206, Shanghai, China (72) Inventor(s):
Dawei Xia Yongjun Ma (74) Agent and/or Address for Service:
Marks & Clerk LLP
New York Street, MANCHESTER, M1 4HD, United Kingdom (54) Title of the Invention: Passenger vehicle door lock control device Abstract Title: Passenger vehicle door lock control device (57) A door lock control device for a passenger vehicle having an ignition switch comprises: a door lock relay having two input terminals (A, B), a locking output terminal (C) and an unlocking output terminal (D); a main control unit (MCU) configured to provide an MCU-state signal indicating whether the MCU has failed and to input a logic control instruction to the two input terminals (A, B) of the door lock relay to control electrical levels at the locking and unlocking output terminals of the door lock relay; a forced unlocking module connected to the two input terminals (A, B) of the door lock relay and configured to receive an ON-state signal or an OFF-state signal of the ignition switch; and a system-basis chip (SCB) configured to receive the MCU-state signal and generate an unlocking enablement signal for the forced unlocking module upon failure of the MCU, wherein, when the forced unlocking module simultaneously receives the unlocking enablement signal and the OFF-state signal of the ignition switch, the door lock relay is forced to be unlocked.
AA
AA IGNITION SWITCH
BB RESET
CC UNLOCKING ENABLEMENT SIGNAL DD FORCED UNLOCKING MODULE
1/4
KL30
Fig. 2
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PASSENGER VEHICLE DOOR LOCK CONTROL DEVICE
TECHNICAL FIELD
The present invention relates to the field of automotive electronics, and in particular, to a door-lock control device for passenger vehicles.
BACKGROUND
Existing passenger vehicles use a common door-lock control device (referred to as door controller for short) which generally adopts a control method, as shown in FIG. 1, to control unlocking, locking, or super-locking of the passenger vehicles. That is, the door-lock control device collects a control signal sent by a user, for example, a signal from a door-lock central-control switch, a wireless key, or a mechanical lock-cylinder switch. Then, a micro control unit (referred to as MCU for short below) in the door-lock control device sends a drive signal to a relay module after applying logical operations through software on the collected signal. The relay module in turn outputs a voltage/current, and a door-lock motor performs a corresponding locking, unlocking, or super-locking action.
The control method of the existing door-lock control device mainly has the following two deficiencies:
1. All the control functions rely on the core component MCU of the control device, and if the MCU is faulty or a software program in the MCU is faulty (the MCU fails), the door controller will lose drive control on the door-lock motor (marked by M in the drawings). This situation is called a door-lock failure mode. In the failure mode, potential safety hazards exist if the car cannot be unlocked, for example, the user cannot unlock the door and leave the car when an accident happens or when water is about to enter into the car.
2. In the case of mechanical relay stuck in a motor drive module (relay) in the door controller, if a locking drive module becomes stuck, the door-lock motor is kept driven to perform a locking action, and potential safety hazards may also be caused, for example, the user cannot unlock the door and leave the car when an accident happens or when water is about to enter into the car.
SUMMARY OF THE INVENTION
A technical problem to be solved by the present invention is to provide a door-lock control device for passenger vehicles, which can unlock a passenger car safely when an MCU of the control device fails.
Another technical problem to be solved by the present invention is to provide a door-lock control device for passenger vehicles, which can unlock a passenger car safely when an MCU of the control device fails or a motor drive module (relay) in the door controller of the passenger car becomes mechanically viscous.
The present invention provides a door-lock control device, which is used in a passenger vehicle having an ignition switch includes: a door-lock relay, having two input terminals, a locking output terminal, and an unlocking output terminal; a micro control unit, for generating a micro control unit state signal that indicates whether the micro control unit fails or not and for generating a logical control instruction to be input to the two input terminals of the door-lock relay and for controlling electrical levels of the locking and unlocking output terminals of the door-lock relay; a stuck unlocking module, connected to the two input terminals of the door-lock relay, and configured for receiving a turn-on or turn-off state signal from the ignition switch; and a system basis chip, for receiving the micro control unit state signal, and for generating an unlocking enable signal to the stuck unlocking module when the micro control unit fails, wherein upon receipt of both the unlocking enable signal and the turn-on state signal from the ignition switch, the stuck unlocking module forces the door-lock relay to perform an unlocking action.
Preferably, the door-lock control device of the present invention further includes: a collecting circuit, connected to the locking output terminal and the unlocking output terminal of the door-lock relay, and configured for detecting the electrical levels of the locking output terminal and the unlocking output terminal of the door-lock relay and sending the electrical level of the locking output terminal to the micro control unit, wherein the micro control unit compares the received electrical level of the locking output terminal with the logical control instruction from the micro control unit, and controls the door-lock relay to perform an unlocking action or not to according to a result of the comparison
Preferably, when the electrical level of the locking output terminal detected by the collecting circuit is high and the logical control instruction from the micro control unit does not require the locking output terminal to output a high level, the micro control unit compulsorily sets the locking output terminal and the unlocking output terminal of the door-lock relay at high levels.
Preferably, the system basis chip is further configured for generating a reset signal to the micro control unit when the micro control unit fails.
Preferably, the electrical levels, collected by the collecting circuit, of the locking output terminal and the unlocking output terminal of the door-lock relay are intermittent inputs.
Preferably, a sampling time interval of the collecting circuit is less than or equal to 10 ms.
Preferably, the collecting circuit includes: a first resistor, a second resistor, a third resistor, a fourth resistor, a first diode, and a second diode. One terminal of the first resistor serves as a first collecting terminal of the collecting circuit, and the other terminal of the first resistor serves as a first output terminal of the collecting circuit and is grounded through the third resistor. One terminal of the second resistor serves as a second collecting terminal of the collecting circuit, and the other terminal of the second resistor serves as a second output terminal of the collecting circuit and is grounded through the fourth resistor. The first collecting terminal is grounded through the first diode, the second collecting terminal is grounded through the second diode, the first collecting terminal is connected to the locking output terminal of the door-lock relay, the second collecting terminal is connected to the unlocking output terminal of the door-lock relay, and the first output terminal and the second output terminal are connected to the micro control unit.
Preferably, the micro control unit sends the micro control unit state signal to the system basis chip at a set time interval. If the system basis chip does not receive the micro control unit state signal when time is out, the system basis chip determines that the micro control unit is faulty, resets the micro control unit, and records a reset. If the system basis chip receives the micro control unit state signal after the micro control unit is reset, the system basis chip clears the reset record of the micro control unit. If the system basis chip still cannot receive the micro control unit state signal after the micro control unit is reset, the system basis chip starts a stuck unlocking mode till the system basis chip receives the micro control unit state signal. In the stuck unlocking mode, if the ignition switch is turned on, the system basis chip controls the stuck unlocking module to force the door-lock relay to perform an unlocking action.
Preferably, the stuck unlocking module includes a pulse generator, for receiving the unlocking enable signal sent by the system basis chip and outputting a drive signal to the door-lock relay.
Preferably, the system basis chip further includes a state timing detection circuit, for detecting whether the micro control unit fails or not.
Preferably, the system basis chip provides a power source to the micro control unit.
The MCU of an existing door-lock control device for passenger vehicles directly collects an input signal, converts the input signal into a logical output, and drives an output circuit to implement a door-lock control function. If the MCU of the existing door-lock control device for passenger vehicles fails, the functions of the MCU are directly disabled and the user satisfaction is reduced. If the MCU fails after the door is locked, the electrical unlocking function is directly disabled, and the user is locked inside the car. The above two situations may cause a potential safety hazard that the user is trapped inside the car.
According to the door-lock control device for passenger vehicles provided by the present invention, the detection of the door-lock drive component can effectively avoid false locking caused by a failure of the drive component. Besides, the system basis chip is used to monitor the state of the MCU (to see whether the MCU fails or not), and can cooperate with the stuck unlocking module in the stuck unlocking mode After the MCU fails, the stuck unlocking module is enabled to ensure the unlocking function, thus preventing the user from being locked inside the car, avoiding potential safety hazards, and improving the safety of the car.
The present invention further provides another door-lock control device for passenger vehicles, which has an additional collecting circuit on the basis of the aforementioned door-lock control device for passenger vehicles. By detecting electrical levels of the two output terminals of the door-lock relay, the MCU compares the received electrical levels of the output terminals of the relay with the logical control instruction from the MCU to determine whether viscosity occurs in the relay, and controls the door-lock relay to perform an unlocking action or not according to the comparison result. By using the second type of the door-lock control device for passenger vehicles according to the present invention, a passenger car can be unlocked safely when an MCU of the control device fails or a motor drive module (relay) in the door controller of the passenger car becomes mechanically viscous, such that the unlocking function is ensured, the user is prevented from being locked inside the car, potential safety hazards are avoided, and the safety of the car is improved.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention is further described in detail below by reference to specific embodiments and the accompanying drawings.
FIG. 1 is a schematic structural diagram of an existing door-lock control device for passenger vehicles.
FIG. 2 is a schematic structural diagram of a door-lock control device for passenger vehicles according to Embodiment 1 of the present invention.
FIG. 3 is a schematic diagram illustrating pin assignment of an embodiment of a system basis chip.
FIG. 4 is a schematic structural diagram of a door-lock control device for passenger vehicles according to Embodiment 2 of the present invention.
FIG. 5 is a schematic structural diagram of a door-lock control device for passenger vehicles according to Embodiment 3 of the present invention.
FIG. 6 is a schematic structural diagram of an embodiment of a collecting circuit according to the present invention.
FIG. 7 is a schematic structural diagram of a stuck unlocking module according to Embodiment 4 of the present invention.
List of Reference Numerals:
A, B: two input terminals ofthe door-lock bridge relay C, D: two output terminals ofthe door-lock bridge relay SBC: System basis chip
TC: Timing detection circuit
M : Motor
MCU: Micro control unit
KL15, KL30, Ubat: Power source
R1 to R4: first to fourth resistors
DI: first diode
D2: second diode
E, F: first and second collecting terminals of the collecting circuit
G, H: first and second output terminals of the collecting circuit
DETAILED DESCRIPTION
Embodiment 1
As shown in FIG. 2, the present invention provides a door-lock control device for passenger vehicles, which can unlock a passenger car safely when a micro control unit (MCU) of the control device fails. The control device of this embodiment includes: an MCU, a system basis chip (SBC), a stuck unlocking module (or referred to as LIMPHOME LOGIC), and a door-lock bridge relay.
The MCU is connected to the system basis chip SBC through a Serial Peripheral Interface (SPI) bus and a RESET control line. The system basis chip SBC is used for generating an unlocking enable signal and transmitting the signal to the stuck unlocking module through an enable signal line. The stuck unlocking module is connected to input terminals A, B of the door-lock bridge relay.
The door-lock control device provided by the present invention is used in passenger vehicles having an ignition switch. One terminal of the ignition switch is connected to a KL30 power source, and the other terminal thereof is connected to the stuck unlocking module. The stuck unlocking module is further used for receiving a turn-on (ignition) or turn-off (flameout) state signal from the ignition switch.
A feasible embodiment of the system basis chip is provided. The interface and pin distribution of the system basis chip and the MCU is shown in FIG. 3. In this embodiment, the system basis chip is selected from UJA107X series IC chips produced by NXP Semiconductors, where the pins 9, 10, 11 are SPI bus pins and are connected to an SPI interface of the MCU, the pin 6 is a RESET pin and is connected to a RESET pin of the MCU, and the pin 17 is an enable signal pin, thus forming basic connections of the system basis chip in the present application. The other pins have other functions in the system basis chip, and are inherent pins of the chip (referring to Table 1 for their conventional uses). As they are not directly related to the stuck unlocking function proposed by the present application, details of the other pins are not described herein.
Table 1
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| TXDL2 | RXDL2 | TXDL1 | VI | RXDL1 | RSTN | INTN | EN |
| 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| SDI | SDO | SCK | SCSN | TXDC | RXDC | TEST1 | WDOFF |
| 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| LIMP | WAKE1 | WAKE2 | V2 | CANH | CANL | GND | SPLIT |
| 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 |
| LIN1 | DLIN | LIN2 | WBIAS | VEXCC | TEST2 | VEXCTRL | BAT |
Further referring to FIG. 2, the SPI bus is used by the MCU to set parameters for the system basis chip and transmit an MCU state signal, the RESET control line is used for transmitting a reset signal, the enable signal line is used for transmitting an unlocking enable signal, and the system basis chip has an MCU state timing detection circuit (Time Counter, TC) and provides a 5 V power source to the MCU.
The system basis chip can detect whether the MCU fails and provide an MCU reset signal. The system basis chip judges whether to output an unlocking signal to the stuck unlocking module according to the fact whether the MCU fails and the ON state of the ignition switch (that is, the tum-on or turn-off state of the ignition switch).
The MCU sends an MCU state signal to the system basis chip through the SPI bus at a set time interval (by using Watchdog inspection). If the system basis chip does not receive the MCU state signal (equivalent to a reset watchdog signal) when time is out, the system basis chip judges that the MCU/software is faulty (that is, the MCU fails), resets the MCU for the first time through the RESET control line, and records the reset. If the system basis chip receives the MCU state signal after the MCU is reset for the first time, the system basis chip clears the reset record of the MCU. If the system basis chip still cannot receive the MCU state signal after the MCU is reset for the first time, the system basis chip starts a stuck unlocking mode till the system basis chip receives the MCU state signal. In the stuck unlocking mode, if the ignition switch is at the ON state (that is, the ignition switch is turned on), the system basis chip controls the stuck unlocking module to force the door-lock bridge relay to perform an unlocking action.
The stuck unlocking function is implemented by a stuck unlocking module, its input comes from a control signal provided by the system basis chip and an ON state input from the ignition switch, and its output directly controls the unlocking relay. When the system basis chip detects that the MCU fails and sends a control signal, if the vehicle is at the ON state, the stuck unlocking module compulsorily outputs a 500ms high level to the unlocking relay, such that the door controller completes the stuck unlocking function when the MCU fails.
Embodiment 2
As shown in FIG. 4, the present invention provides another embodiment of a door-lock control device, which can unlock a passenger car safely when an MCU in the passenger car fails or a motor drive module (relay) in the door controller of the passenger car becomes mechanically viscous. The control device further includes a collecting circuit (Monitor) on the basis of Embodiment 1. The MCU is connected to the two input terminals A, B of the door-lock bridge relay. The collecting circuit is connected to two output terminals C, D of the door-lock bridge relay, where the output terminal C is a locking output terminal, and the output terminal D is an unlocking output terminal. The collecting circuit collects electrical levels of the output terminals of the relay and feeds back the electrical levels to the MCU. The MCU compares the received electrical levels of the output terminals of the relay with a logical control instruction from the MCU, and controls the door-lock bridge relay to perform an unlocking action or not according to the comparison result.
Specifically, the collecting circuit can detect the electrical levels (for example, high levels) of the output terminals of the door-lock bridge relay and send the electrical levels of the output terminals to the MCU; the MCU compares the received electrical levels of the output terminals of the door-lock bridge relay with the logical control instruction (whether it requires to output high levels) from the MCU, and controls the door-lock bridge relay to perform an unlocking action or not according to the comparison result.
When the electrical level of the output terminal C collected by the collecting circuit is high and the logical control instruction from the MCU does not require to output a high level, the MCU compulsorily enables the two output terminals C, D of the door-lock bridge relay at the same time, such that the two output terminals C, D are at an equal potential.
It can be easily understood by persons skilled in the art that, when the locking output terminal C is at a high level and the unlocking output terminal D is at a low level, the motor rotates forward to implement locking of a mechanical structure; and on the contrary, when the locking output terminal C is at a low level and the unlocking output terminal D is at a high level, the motor rotates reversely to implement unlocking of the mechanical structure. When the two output terminals C, D are at an equal potential, the motor does not rotate.
Since the mechanical structure can be actually locked after the motor rotates for a very short period of time (generally less than 100 ms), it is better to adopt intermittent input for the high-level feedback port of the relay, or the sampling time may be adjusted to be extremely short, and then, measures are taken immediately to keep the two terminals of the bridge circuit at an equal potential. The intermittent input adopted here conforms to the single-chip microcomputer principle, that is, commands and instructions required for operations are executed one by one. After the two terminals of the motor are at an equal potential, the door controller can further try a recovery policy. Firstly, the output of the locking relay is shut down, and when it is detected that the feedback is at a low level and the locking relay is not viscous, the output of the unlocking relay is disconnected, the system is then recovered, and the unlocking function can be used again.
Preferably, the high-level output terminal of the door-lock bridge relay adopts intermittent input, or the collecting circuit adopts a manner that the sampling time interval is less than or equal to 10 ms.
Embodiment 3
As shown in FIG. 5, in the present embodiment, the present invention provides a door-lock control device for passenger vehicles, which includes: an MCU, a collecting circuit, and a door-lock bridge relay. Different from Embodiment 2, the door-lock control device for passenger vehicles does not include a system basis chip and a stuck unlocking module. The working principle and connections of the collecting circuit are completely the same as those in Embodiment 2, and the details are not repeatedly described herein.
FIG. 6 shows a specific embodiment of the collecting circuit in the present invention. The collecting circuit has two collecting terminals E, F and two output terminals G, H. One terminal of a first resistor R1 serves as the first collecting terminal E of the collecting circuit, and the other terminal of the first resistor R1 serves as the first output terminal G of the collecting circuit and is grounded through a third resistor R3. One terminal of a second resistor R2 serves as the second collecting terminal F of the collecting circuit, and the other terminal of the second resistor R2 serves as the second output terminal H of the collecting circuit and is grounded through a fourth resistor R4. The first collecting terminal E is grounded through a first diode DI, and the second collecting terminal F is grounded through a second diode D2.
When the collecting circuit works, the first collecting terminal E and the second collecting terminal F are connected to the two output terminals C, D of the door-lock bridge relay, and the first output terminal G and the second output terminal H output collecting signals to the MCU.
FIG. 7 shows an embodiment ofthe stuck unlocking module, which includes: a power source KF 15, connected to a vehicle power source (not shown) and connected to a pulse generator; and an RC circuit, connected to the pulse generator, wherein the pulse generator receives an unlocking enable signal sent by a system basis chip and outputs a drive signal to a door-lock relay through a relay coil driver, a power source Ubat provides a voltage to the door-lock relay, and the door-lock relay is used for controlling a motor.
The present invention is described in detail above through specific implementations and embodiments, which are not intended to limit the present invention. Persons skilled in the art can make various modifications and improvements without departing from the principle of the present invention. All these modifications and improvements shall fall within the protection scope of the present invention.
Claims (11)
1. A door-lock control device, used in a passenger vehicle having an ignition switch, comprising:
a door-lock relay, having two input terminals, a locking output terminal, and an unlocking output terminal;
a micro control unit, for generating a micro control unit state signal that indicates whether the micro control unit fails or not and for generating a logical control instruction to be input to the two input terminals of the door-lock relay and for controlling electrical levels of the locking output terminal and the unlocking output terminal of the door-lock relay;
a stuck unlocking module, connected to the two input terminals of the door-lock relay, and configured for receiving a tum-on or turn-off state signal from the ignition switch; and a system basis chip, for receiving the micro control unit state signal and for generating an unlocking enable signal to the stuck unlocking module when the micro control unit fails, wherein upon receipt of both the unlocking enable signal and the tum-on state signal from the ignition switch, the stuck unlocking module forces the door-lock relay to perform an unlocking action.
2. The door-lock control device according to claim 1, further comprising: a collecting circuit, connected to the locking output terminal and the unlocking output terminal of the door-lock relay, and configured for detecting the electrical levels of the locking output terminal and the unlocking output terminal of the door-lock relay and sending the electrical level of the locking output terminal to the micro control unit, wherein the micro control unit compares the received electrical level of the locking output terminal with the logical control instruction from the micro control unit, and controls the door-lock relay to perform an unlocking action or not to according to a result of the comparison.
3. The door-lock control device according to claim 2, wherein when the electrical level of the locking output terminal detected by the collecting circuit is high and the logical control instruction from the micro control unit does not require the locking output terminal to output a high level, the micro control unit compulsorily sets the locking output terminal and the unlocking output terminal of the door-lock relay at high levels.
4. The door-lock control device according to claim 1, wherein the system basis chip is further configured for generating a reset signal to the micro control unit when the micro control unit fails.
5. The door-lock control device according to claim 2, wherein the electrical levels of the locking output terminal and the unlocking output terminal are intermittent inputs.
6. The door-lock control device according to claim 2, wherein a sampling time interval ofthe collecting circuit is less than or equal to 10 ms.
7. The door-lock control device according to claim 2, wherein the collecting circuit comprises: a first resistor, a second resistor, a third resistor, a fourth resistor, a first diode, and a second diode; wherein one terminal of the first resistor serves as a first collecting terminal of the collecting circuit, and the other terminal of the first resistor serves as a first output terminal of the collecting circuit and is grounded through the third resistor; wherein one terminal of the second resistor serves as a second collecting terminal of the collecting circuit, and the other terminal of the second resistor serves as a second output terminal of the collecting circuit and is grounded through the fourth resistor; and wherein the first collecting terminal is grounded through the first diode, the second collecting terminal is grounded through the second diode, the first collecting terminal is connected to the locking output terminal of the door-lock relay, the second collecting terminal is connected to the unlocking output terminal of the door-lock relay, and the first output terminal and the second output terminal are connected to the micro control unit.
8. The door-lock control device according to any one of claims 1 to 7, wherein the micro control unit sends the micro control unit state signal to the system basis chip at a set time interval; wherein if the system basis chip does not receive the micro control unit state signal when time is out, the system basis chip determines that the micro control unit is faulty, resets the micro control unit, and stores a reset record;
if the system basis chip receives the micro control unit state signal after the micro control unit is reset, the system basis chip clears the reset record;
if the system basis chip still cannot receive the micro control unit state signal after the micro control unit is reset, the system basis chip continuously outputs the unlocking enable signal to the stuck unlocking module till the system basis chip receives the micro control unit state signal.
9. The door-lock control device according to any one of claims 1 to 7, wherein the stuck unlocking module comprises a pulse generator, for receiving the unlocking enable signal sent by the system basis chip and outputting a drive signal to the door-lock relay.
10. The door-lock control device according to claim 1, wherein the system basis chip further comprises a state timing detection circuit, for detecting whether the micro control unit fails or not.
11. The door-lock control device according to claim 1, wherein the system basis chip provides a power source to the micro control unit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510672533.9A CN106593148B (en) | 2015-10-16 | 2015-10-16 | Passenger car doorlock control unit |
| CN201510671700.8A CN106593147B (en) | 2015-10-16 | 2015-10-16 | Passenger car doorlock control unit |
| PCT/CN2016/100488 WO2017063501A1 (en) | 2015-10-16 | 2016-09-28 | Passenger vehicle door lock control device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB201806778D0 GB201806778D0 (en) | 2018-06-06 |
| GB2557850A true GB2557850A (en) | 2018-06-27 |
| GB2557850B GB2557850B (en) | 2020-08-19 |
Family
ID=58517787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1806778.5A Active GB2557850B (en) | 2015-10-16 | 2016-09-28 | Passenger vehicle door lock control device |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2557850B (en) |
| WO (1) | WO2017063501A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586779A (en) * | 2018-12-14 | 2019-04-05 | 武汉泰可电气股份有限公司 | The anti-network trunk of intelligent online five based on ZigBee-network |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2017063501A1 (en) | 2017-04-20 |
| GB2557850B (en) | 2020-08-19 |
| GB201806778D0 (en) | 2018-06-06 |
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