CN207737249U - A kind of electronic steering column lock control device - Google Patents
A kind of electronic steering column lock control device Download PDFInfo
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- CN207737249U CN207737249U CN201721665402.9U CN201721665402U CN207737249U CN 207737249 U CN207737249 U CN 207737249U CN 201721665402 U CN201721665402 U CN 201721665402U CN 207737249 U CN207737249 U CN 207737249U
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- module
- steering column
- main processor
- electronic steering
- lock
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Abstract
The utility model provides a kind of electronic steering column lock control device, including：Lock tongue motor, latch bolt position sensor assembly, main processor modules and secondary processor module.The utility model devises latch bolt position sensor, can be detected before and after unlock or locking action, to carry out malfunction coefficient or alarm.Meanwhile being detected mutually between the main processor modules and secondary processor module of the utility model, it is ensured that the job stability and reliability of present apparatus circuit.When automobile uses PEPS system, matching is exactly electronic steering pipe column lock the burglary-resisting system of automobile is arranged, lead to CAN bus between them to communicate, main processor modules unlock after can also being permitted by vehicle authentication to steering column, prevent the action permitted without vehicle authentication from locking to steering column.
Description
Technical field
The utility model is related to the electronic switch control fields of automobile, and in particular to a kind of electronic steering column lock control dress
It sets.
Background technology
The current electronic steering pipe column lock ESCL control work(for being equipped with keyless entry and the vehicle of activation system PEPS
Can, Collaborative Control is generally carried out by keyless entry and both activation system PEPS and car body controller ECU jointly.For electronics
Steering column is locked for ESCL, is controlled it and is executed locking action, needs Body Control BCM in locking enable signal Lock
Provide signal on enable lines, and keyless entry and activation system PEPS on serial communications network LIN with electrical steering
Tubing string locks ESCL communications.This ESCL control models use keyless entry and activation system PEPS and car body controller ECU
The two carries out Collaborative Control jointly, then increases cost and keyless entry and activation system PEPS and the vehicle body control of harness
The complexity of interactive information between two controllers of device BCM processed, and since the electronic steering pipe column lock ESCL power supplys received are believed
Number Power and enable signal Lock enable is provided by single module, and the safety for resulting in its control is poor.
Application No. is 201510712271.4 Chinese patent, disclose a kind of electronic steering pipe column lock control circuit and its
Control method, wherein control circuit includes：Main MCU, and locks power supply for electron steering column and is diagnosed to power supply
Power supply circuit is connected；Auxiliary MCU is locked for ground with for electron steering column for ground circuit and for being examined for ground respectively
Disconnected is connected for ground diagnostic circuit；Power feedback, for being fed back to described for the defeated of ground circuit according to vehicle power supply status
Go out to be controlled.It controls by the way that main and auxiliary two MCU are arranged and powers to ESCL and for ground, improve safety respectively；Pass through
Power feedback is added, ensures that ESCL can not work normally under non-OFF power supply status, even if ensureing in main and auxiliary MCU programs
It runs in the case of flying, will not be locked by false triggering；In addition, diagnostic circuit is additionally provided with to power supply and for ground, when event occurs in diagnosis
When barrier will not out-put supply and ground, but the state that it can not be before dual lock or locking is detected, or to main and auxiliary two
MCU work is detected, and the stability and reliability for causing it to use not are very high, and there is an urgent need to be improved.
Utility model content
To solve the above problems, the utility model provides a kind of electronic steering column lock control device.The utility model is set
Latch bolt position sensor has been counted, can be detected before and after unlock or locking action, to carry out malfunction coefficient or alarm.Together
When, it is detected mutually between the main processor modules and secondary processor module of the utility model, it is ensured that the work of present apparatus circuit
Make stability and reliability.When automobile uses PEPS system, matching is exactly electronic steering pipe column lock automobile is arranged
Burglary-resisting system, CAN bus is led between them to communicate, main processor modules can also be permitted by vehicle authentication after to turning to
Tubing string unlocks, and prevents the action permitted without vehicle authentication from locking to steering column.
For the realization technical purpose, the technical solution of the utility model is：A kind of electronic steering column lock control device, packet
It includes：
Lock tongue motor, for controlling, lock tongue stretches out or retraction, the further electronic steering column lock that controls lock or unlock；
Latch bolt position sensor assembly, for being detected to latch bolt position before unlocking or locking；
Main processor modules, for receive unlock or upper lock information, and will unlock or upper lock information be sent to following two levels
Processor module；
Secondary processor module and main processor modules are respectively connected to lock tongue motor, according to unlocking or upper lock information control
Lockmaking tongue motor action.
Further, the main processor modules connect setting unlocking or locking information receiving module by CAN bus, are used for
It receives and reads the unlocking for the unlocking for coming bike computer ECU or electron key PEPS or upper lock signal.
Further, the main processor modules are connected with secondary processor module by spi bus, in processor die
It is communicated between block and secondary processor module.
As a kind of preferred embodiment of the utility model, it is based on the above, unlike, the primary processor
Connection setting decoupling circuit between module and secondary processor module, for avoiding recovery system.
As a kind of preferred embodiment of the utility model, it is based on the above, unlike, the latch bolt position
Sensor is respectively connected to main processor modules and secondary processor module, for being carried out to latch bolt position before unlocking or locking
Detection, and latch bolt position information is respectively sent to main processor modules and secondary processor module.
Further, the main processor modules connection setting relay module；
Relay module connection setting field effect transistor, field effect transistor are connected to secondary processor module and connect
Ground, when secondary processor module controls field-effect triode ON, relay is closed, lock tongue motor action.
As a kind of preferred embodiment of the utility model, it is based on the above, unlike, the primary processor
Module is electrically connected between relay module and field effect transistor, for detecting whether field effect transistor is connected, further
Whether detection relay module is closed.
As a kind of preferred embodiment of the utility model, it is based on the above, unlike, the primary processor
Between module is electrically connected to secondary processor and field-effect three takes over, for detecting secondary processor module whether can normal driving
Conducting is taken in field-effect three；
The secondary processor module is electrically connected between main processor modules and relay module, for detecting main process task
Whether device module can normally export to relay module.
The beneficial effects of the utility model are：
The utility model devises latch bolt position sensor, can unlock or locking action before and after be detected, with into
Row malfunction coefficient or alarm.Meanwhile being detected mutually between the main processor modules and secondary processor module of the utility model, really
The job stability and reliability of present apparatus circuit are protected.When automobile uses PEPS system, matching is exactly that electronics turns
The burglary-resisting system of automobile is set to tubing string lock, CAN bus is led between them to communicate, main processor modules can also pass through vehicle
Steering column unlock is given after certification license, prevents action permit without vehicle authentication from giving steering column locking.
Description of the drawings
Fig. 1 is the electronic steering column lock control device circuit module schematic diagram of the utility model；
Specific implementation mode
The technical solution of the utility model will be clearly and completely described below.
As shown in Figure 1, a kind of electronic steering column lock control device, including：
Lock tongue motor, for controlling, lock tongue stretches out or retraction, the further electronic steering column lock that controls lock or unlock；
Latch bolt position sensor assembly, for being detected to latch bolt position before unlocking or locking；
Main processor modules, for receive unlock or upper lock information, and will unlock or upper lock information be sent to following two levels
Processor module；
Secondary processor module and main processor modules are respectively connected to lock tongue motor, according to unlocking or upper lock information control
Lockmaking tongue motor action.
Further, the main processor modules connect setting unlocking or locking information receiving module by CAN bus, are used for
It receives and reads the unlocking for the unlocking for coming bike computer ECU or electron key PEPS or upper lock signal.
Further, the main processor modules are connected with secondary processor module by spi bus, in processor die
It is communicated between block and secondary processor module.
As a kind of preferred embodiment of the utility model, it is based on the above, unlike, the primary processor
Connection setting decoupling circuit between module and secondary processor module, for avoiding recovery system.
As a kind of preferred embodiment of the utility model, it is based on the above, unlike, the latch bolt position
Sensor is respectively connected to main processor modules and secondary processor module, for being carried out to latch bolt position before unlocking or locking
Detection, and latch bolt position information is respectively sent to main processor modules and secondary processor module.That is, locking or
Before unlock, the position of lock tongue can be detected, it, just can be into ensure that current lock tongue state is state before locking or unlock
Row locking or unlocking motion；After locking or unlock, lock tongue is answered after whether detectable latch bolt position meets locking or unlocking motion
Position, otherwise regard as malfunction, carry out malfunction coefficient or alarm.
Further, the main processor modules connection setting relay module；
Relay module connection setting field effect transistor, field effect transistor are connected to secondary processor module and connect
Ground, when secondary processor module controls field-effect triode ON, relay is closed, lock tongue motor action.
Characteristic based on field effect transistor, field effect transistor ground terminal ground connection, in addition both ends be connected to after
Electrical appliance module and secondary processor module export the high or low level to field effect transistor by secondary processor module,
In addition primary processor is exported to the ground of relay or high level, you can control the operating mode of relay module, further control
The positive and negative rotation of lock tongue motor so that lock tongue is stretched out or retracted.
As a kind of preferred embodiment of the utility model, it is based on the above, unlike, the primary processor
Module is electrically connected between relay module and field effect transistor, for detecting whether field effect transistor is connected, further
Whether detection relay module is closed.
As a kind of preferred embodiment of the utility model, it is based on the above, unlike, the primary processor
Between module is electrically connected to secondary processor and field-effect three takes over, for detecting secondary processor module whether can normal driving
Conducting is taken in field-effect three；
The secondary processor module is electrically connected between main processor modules and relay module, for detecting main process task
Whether device module can normally export to relay module.That is the primary processor of the utility model is exported to relay module
Low and high level, be detected by secondary processor module；Secondary processor is exported to the low and high level signal of field-effect tube, by
Main processor modules detect.
Contain security function in primary processor simultaneously, be integrated with power module and CAN interface, can perform diagnosis and
Other functions, such as：1. ROM (ReadOnlyMemory, read-only memory) detects (16 cyclic redundancy schools of ROM content
Test), capacity：96KByte；2. RAM (RandomAccessMemory, random access memory) data backup be (safety-relevant data
Diversification storage/periodically RAM detections), capacity：8KByte；③EEPROM
(ElectricallyErasableProgrammableRead, electricity erasable memorizer) cyclic redundancy check, capacity：
2KByte；4. CPU self-tests；5. AD converter tests (AD conversion of latch bolt position sensor), precision 12bit；6. primary processor
Module restarts functional test；7. restarting functional test to secondary processor.
Secondary processor module can verify that the safety condition that CAN message is included and be examined to the function of main processor modules
It surveys, the low side of control motor driving is enabled during ESCL is unlocked and is locked.The security function of secondary processor has：1. from
Body voltage supplies；2. itself has Time -based Control；3. ROM detects (cyclic redundancy check of ROM content), capacity：4KWord；④
RAM detects (secure storage includes identifier), capacity：512Byte；⑤EEPROM
(ElectricallyErasableProgrammableRead, electricity erasable memorizer) cyclic redundancy check, capacity：
256Byte；6. CPU self-tests；7. restarting function primary processors to primary processor can directly report relevant CAN by spi bus
Text is transferred in secondary processor.
The implementation steps of the utility model are as follows：
When carrying out electronic steering column lock unlocking motion, the unlocking in CAN bus or locking information receiving module receive
After the unlocking request that PEPS or ECU is sent, after main processor modules confirm that encryption is correct, control output relay is total by SPI
Line exports unlocking signal to secondary processor module, after the control of secondary processor module is output to field effect transistor FET, lock tongue
Motor action, lock tongue are retracted, and electronic steering column lock unlocking motion is further executed.
In the locking action for carrying out electronic steering column lock, provided by Full Vehicle System or car running computer ECU, these are pre-
Sentence what condition was made of signal of many from CAN bus, including wheel speed signal, engine rotational speed signal, electric source modes shape
State signal etc. prejudges condition.If the condition of anticipation is effective, if can be enabled there are one specific trigger signal at this time, ESCL is carried out
Lock operation, with the locking function for realizing electronic steering pipe column lock when motor driven latch tongue is to lock position.
Further, it is necessary to meet following condition to realize for the locking function of electronic steering pipe column lock：What CAN bus received
Wheel speed signal VS, engine rotational speed signal RPM, electric source modes status signal IGN, when condition meets IGN=OFF＆RPM=0＆VS
When ＜ 3km/h, the upper lock signal of main processor modules output to relay module, while secondary processor control output is so that field effect
Triode earth-continuity, the relay of relay module is answered to work, lock tongue motor action, lock tongue stretches out, and further executes electronics
Lock for steering column locking acts.
For those of ordinary skill in the art, without departing from the concept of the present invention, may be used also
To make several modifications and improvements, these belong to the scope of protection of the utility model.
Claims (8)
1. a kind of electronic steering column lock control device, which is characterized in that including：
Lock tongue motor, for controlling, lock tongue stretches out or retraction, the further electronic steering column lock that controls lock or unlock；
Latch bolt position sensor assembly, for being detected to latch bolt position before unlocking or locking；
Main processor modules, for receive unlock or upper lock information, and will unlock or upper lock information be sent to following two stage treatments
Device module；
Secondary processor module and main processor modules are respectively connected to lock tongue motor, according to unlocking or upper lock information control lock
Tongue motor action.
2. a kind of electronic steering column lock control device according to claim 1, which is characterized in that the main processor modules
Setting unlocking or locking information receiving module are connected by CAN bus, comes bike computer ECU or electronics for receiving and reading
The unlocking of the unlocking of key PEPS or upper lock signal.
3. a kind of electronic steering column lock control device according to claim 1, which is characterized in that the main processor modules
It is connected by spi bus with secondary processor module, for being communicated between processor module and secondary processor module.
4. a kind of electronic steering column lock control device according to claim 1, which is characterized in that the main processor modules
The connection setting decoupling circuit between secondary processor module, for avoiding recovery system.
5. a kind of electronic steering column lock control device according to claim 1, which is characterized in that the latch bolt position sensing
Device is respectively connected to main processor modules and secondary processor module, for being examined to latch bolt position before unlocking or locking
It surveys, and latch bolt position information is respectively sent to main processor modules and secondary processor module.
6. a kind of electronic steering column lock control device according to claim 1, which is characterized in that
The main processor modules connection setting relay module；
Relay module connection setting field effect transistor, field effect transistor are connected to secondary processor module and are grounded,
When secondary processor module controls field-effect triode ON, relay is closed, lock tongue motor action.
7. a kind of electronic steering column lock control device according to claim 6, which is characterized in that
The main processor modules are electrically connected between relay module and field effect transistor, for detecting field effect transistor
Whether be connected, further detect whether relay module is closed.
8. a kind of electronic steering column lock control device according to claim 6, which is characterized in that
Between the main processor modules are electrically connected to secondary processor and field-effect three takes over, for detecting secondary processor mould
Block whether can normal driving field-effect three take over conducting；
The secondary processor module is electrically connected between main processor modules and relay module, for detecting primary processor mould
Whether block can normally export to relay module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721665402.9U CN207737249U (en) | 2017-12-04 | 2017-12-04 | A kind of electronic steering column lock control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721665402.9U CN207737249U (en) | 2017-12-04 | 2017-12-04 | A kind of electronic steering column lock control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207737249U true CN207737249U (en) | 2018-08-17 |
Family
ID=63117130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721665402.9U Active CN207737249U (en) | 2017-12-04 | 2017-12-04 | A kind of electronic steering column lock control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207737249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116424260A (en) * | 2023-06-12 | 2023-07-14 | 一汽解放汽车有限公司 | Steering column lock control method and device, electronic equipment and storage medium |
-
2017
- 2017-12-04 CN CN201721665402.9U patent/CN207737249U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116424260A (en) * | 2023-06-12 | 2023-07-14 | 一汽解放汽车有限公司 | Steering column lock control method and device, electronic equipment and storage medium |
| CN116424260B (en) * | 2023-06-12 | 2023-09-01 | 一汽解放汽车有限公司 | Steering column lock control method and device, electronic equipment and storage medium |
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