CN106938637A - A kind of electric steering method of controlling security - Google Patents
A kind of electric steering method of controlling security Download PDFInfo
- Publication number
- CN106938637A CN106938637A CN201611243637.9A CN201611243637A CN106938637A CN 106938637 A CN106938637 A CN 106938637A CN 201611243637 A CN201611243637 A CN 201611243637A CN 106938637 A CN106938637 A CN 106938637A
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- Prior art keywords
- wheel speed
- electronic control
- abs
- control units
- electronic
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
- B60R25/02—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism
- B60R25/021—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch
- B60R25/0215—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch using electric means, e.g. electric motors or solenoids
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The invention discloses a kind of electric steering method of controlling security.It receives and judged ABS the near front wheel wheel speed and off-front wheel wheel speed information by PEPS electronic control units, according to the information of two-wheeled wheel speed, PEPS electronic control units can determine whether the power supply for sending locking order to electric steering and providing required for electric steering work, while the electronic control unit of electric steering also synchronously receives two-wheeled wheel speed information and determines whether to perform the locking order that PEPS electronic control units are sent.The beneficial effects of the invention are as follows：Advanced ABS system and wheel speed sensors need not be selected, the production cost of vehicle are effectively reduced, it is possible to increase the stability and security reliability of data transfer, the security performance of vehicle is improved, the ASIL D of ISO 26262 requirement can be reached.
Description
Technical field
The present invention relates to motorcar electric steering lock correlative technology field, a kind of electric steering security control side is referred in particular to
Method.
Background technology
With the development and the offer of automotive circuit diagram level of automotive electronic technology, while also meeting the remote of internet automobile
The demand of process control function, the market outfit rate of PEPS system is greatly improved, and most of middle-grade even low and middle-grade automobiles are all matched somebody with somebody
For PEPS system.ECE R116 and national standard《GB 15740-2006 alarms and security systems for automobiles》GB 15740-2006 are advised
Determine the anti-theft device requirement of a variety of automobiles, solution main at present is the steering lock of locking automotive steering structure, for
PEPS system realizes the automatic unlocking function of steering lock, it is necessary to be equipped with electric steering.Electric steering is related to vehicle traveling peace
Quan Xing, if electric powered steering is locked in misoperation in vehicle travel process and causes steering structure to be locked out, the turning function of vehicle will
Failure.According to the standards of ISO 26262, the blocking function of electric steering needs to meet ASIL D class requirements, that is, most severe
The demand for security at quarter.In order to meet the ASIL D grades of electric steering blocking function, strategy main at present is by reliable
Automobile speed come judge vehicle whether in traveling in, such as vehicle be in transport condition, then forbid electric steering perform close
Lock function.
For medium-to-high grade automobile, the cost pressure of vehicle is small, and the safety-type of electric steering lock-in control can be by making
The requirement of the ISO26262 ASIL D grades of GES is met with advanced ABS system and wheel speed sensors, and then is met
The ASIL D grades functional safeties of ISO 26262 requirement of locking control function.But for low and middle-grade automobiles, for the limit of cost
System, it is impossible to select advanced ABS system and wheel speed sensors, the speed that ABS is provided can not meet ISO26262 ASIL D grades
It is required that, it is therefore desirable to research and development is new, safety control strategy that is meeting the electric steering that vehicle low cost is required.
The content of the invention
The present invention is that above-mentioned there is provided a kind of electricity for meeting inexpensive demand in order to overcome the shortcomings of to exist in the prior art
Dynamic steering lock method of controlling security.
To achieve these goals, the present invention uses following technical scheme：
A kind of electric steering method of controlling security, is comprised the following steps that：
(1) vehicle sends electric steering block signal, while the block signal is sent into PEPS electronic control units；
(2) PEPS electronic control units are judged the transport condition of vehicle when receiving above-mentioned block signal, if
Vehicle is in OFF grades, then enters in step (3)；If vehicle is not in OFF grades, enter in step (8)；
(3) PEPS electronic control units receive ABS the near front wheel wheel speed and the information of off-front wheel wheel speed, and judge two-wheeled wheel
Whether speed is less than 5km/h, if two-wheeled wheel speed is less than 5km/h, enters in step (4)；If two-wheeled wheel speed is not less than 5km/h,
Then enter in step (8)；
(4) PEPS electronic control units electron steering lock sends locking order and electron steering lock is powered；
(5) electronic control unit of electronic steering lock judges whether electronic steering lock is in power-up state, if electronics
Steering lock is in power-up state, then enters in step (6)；If electronic steering lock is not in power-up state, enter
In step (8)；
(6) electronic control unit of electronic steering lock receives ABS the near front wheel wheel speed and the information of off-front wheel wheel speed, and sentences
Whether disconnected two-wheeled wheel speed is less than 5km/h, if two-wheeled wheel speed is less than 5km/h, enters in step (7)；If two-wheeled wheel speed is not small
In 5km/h, then enter in step (8)；
(7) electronic steering lock performs lock operation, and terminates the control operation of electronic steering lock；
(8) electric steering is forbidden to perform lock operation.
PEPS electronic control units receive and judged ABS the near front wheel wheel speed and off-front wheel wheel speed information, according to two-wheeled wheel
The information of speed, PEPS electronic control units can determine whether to send locking order to electric steering and provide electric steering work
Power supply required for making, while the electronic control unit of electric steering also synchronously receives two-wheeled wheel speed information and determines whether to hold
The locking order that row PEPS electronic control units are sent.This control method only need to receive and judge ABS the near front wheel wheel speed and
Off-front wheel wheel speed information, the block action of electric steering is achieved that by the superposition of two-wheeled wheel speed, it is not necessary to from advanced
ABS system and wheel speed sensors, effectively reduce the production cost of vehicle.
Preferably, in step (3), PEPS electronic control units are connected by CAN and ABS electronic control units
Connect, the information of ABS the near front wheel wheel speed and off-front wheel wheel speed is sent to PEPS electricity by ABS electronic control units by CAN
Sub-control unit.Pass through CAN and realize communication between the two, it is possible to increase the stability of data transfer and safe and reliable
Property.
Preferably, in step (3), PEPS electronic control units are judging ABS the near front wheel wheel speed and off-front wheel wheel
While fast, whether effectively the ABS the near front wheels wheel speed and off-front wheel wheel speed that receive are judged, if two-wheeled wheel speed effectively, enters
Into step (4)；If two-wheeled wheel speed is invalid, enter in step (8).So it is designed to prevent the nothing because two-wheeled wheel speed
Imitate and cause the wrong latch status of electric steering, improve the security performance of vehicle.
Wanted preferably, ABS the near front wheel wheel speed and the signal of off-front wheel wheel speed meet the ASIL B grades of ISO 26262
Ask.The foundation of this control method is the ASIL D=ASIL B+ASIL B in the standards of ISO 26262, and two meet ISO 26262
ASIL B independent control can reach the ASIL D of ISO 26262 requirement after being combined.
Preferably, in step (4), the electronics control that PEPS electronic control units pass through CAN and electronic steering lock
Unit connection processed, the electronic control unit of electronic steering lock receives the locking that PEPS electronic control units are sent by CAN
Signal.Pass through the communication of CAN realization between the two, it is possible to increase the stability and security reliability of data transfer.
Preferably, in step (6), the electronic control unit of electronic steering lock passes through CAN and ABS Electronic Controls
Unit is connected, and the information of ABS the near front wheel wheel speed and off-front wheel wheel speed is sent to by ABS electronic control units by CAN
The electronic control unit of electronic steering lock.Pass through the communication of CAN realization between the two, it is possible to increase the stabilization of data transfer
Property and security reliability.
Preferably, in step (6), the electronic control unit of electronic steering lock judge ABS the near front wheel wheel speed and
While off-front wheel wheel speed, whether effectively the ABS the near front wheels wheel speed and off-front wheel wheel speed that receive are judged, if two-wheeled wheel speed has
Effect, then enter in step (7)；If two-wheeled wheel speed is invalid, enter in step (8).So it is designed to prevent because of two
Take turns wheel speed invalid and wrong latch status that cause electric steering, improve the security performance of vehicle.
The beneficial effects of the invention are as follows：Advanced ABS system and wheel speed sensors need not be selected, are effectively reduced whole
The production cost of car, it is possible to increase the stability and security reliability of data transfer, improves the security performance of vehicle, can reach
The ASIL D of ISO 26262 requirement.
Embodiment
With reference to embodiment, the present invention will be further described.
A kind of electric steering method of controlling security, is comprised the following steps that：
(1) vehicle sends electric steering block signal, while the block signal is sent into PEPS electronic control units；
(2) PEPS electronic control units are judged the transport condition of vehicle when receiving above-mentioned block signal, if
Vehicle is in OFF grades, then enters in step (3)；If vehicle is not in OFF grades, enter in step (8)；
(3) PEPS electronic control units receive ABS the near front wheel wheel speed and the information of off-front wheel wheel speed, and judge two-wheeled wheel
Whether speed is less than 5km/h, while whether effectively the ABS the near front wheels wheel speed and off-front wheel wheel speed that receive are judged, if two-wheeled wheel speed
Less than 5km/h and effectively, then enter in step (4)；If two-wheeled wheel speed is not less than 5km/h or invalid, step is entered
(8) in；Wherein：PEPS electronic control units are connected by CAN with ABS electronic control units, and ABS electronic control units will
ABS the near front wheel wheel speed and the information of off-front wheel wheel speed are sent to PEPS electronic control units by CAN；
(4) PEPS electronic control units electron steering lock sends locking order and electron steering lock is powered；Wherein：
PEPS electronic control units are connected by the electronic control unit of CAN and electronic steering lock, the electronics control of electronic steering lock
Unit processed receives the block signal that PEPS electronic control units are sent by CAN；
(5) electronic control unit of electronic steering lock judges whether electronic steering lock is in power-up state, if electronics
Steering lock is in power-up state, then enters in step (6)；If electronic steering lock is not in power-up state, enter
In step (8)；
(6) electronic control unit of electronic steering lock receives ABS the near front wheel wheel speed and the information of off-front wheel wheel speed, and sentences
Whether disconnected two-wheeled wheel speed is less than 5km/h, while whether effectively to judge the ABS the near front wheels wheel speed and off-front wheel wheel speed that receive, if
Two-wheeled wheel speed is less than 5km/h and effective, then enters in step (7)；If two-wheeled wheel speed is not less than 5km/h or invalid, enter
Enter into step (8)；Wherein：The electronic control unit of electronic steering lock is connected by CAN with ABS electronic control units,
The information of ABS the near front wheel wheel speed and off-front wheel wheel speed is sent to electronic steering lock by ABS electronic control units by CAN
Electronic control unit；
(7) electronic steering lock performs lock operation, and terminates the control operation of electronic steering lock；
(8) electric steering is forbidden to perform lock operation.
Wherein：PEPS electronic control units, the electronic control unit of electric steering and ABS electricity are included in this control method
Information exchange is carried out by CAN between sub-control unit, three electronic control units.PEPS electronic control units are received
With the near front wheel wheel speed and off-front wheel wheel speed information that judge ABS, according to two-wheeled wheel speed information, PEPS electronic control units can judge
Whether send locking order to electric steering and the power supply required for electric steering work is provided, while electric steering
Electronic control unit also synchronously receives two-wheeled wheel speed information and determines whether to perform the locking life that PEPS electronic control units are sent
Order.The foundation of this control method is the ASIL D=ASIL B+ASIL B in the standards of ISO 26262, and two meet ISO 26262
ASIL B independent control can reach the ASIL D of ISO 26262 requirement after being combined.This control method requires that ABS is carried
For the near front wheel wheel speed and the information of off-front wheel wheel speed, and wheel speed signal needs to meet the ASIL B class requirements of ISO 26262, from
And solve the functional safety for the ISO26262 ASIL D grades that electric powered steering is locked in the case of existing technology and cost level
Problem.
Claims (7)
1. a kind of electric steering method of controlling security, it is characterized in that, comprise the following steps that：
(1) vehicle sends electric steering block signal, while the block signal is sent into PEPS electronic control units；
(2) PEPS electronic control units are judged the transport condition of vehicle when receiving above-mentioned block signal, if vehicle
In OFF grades, then enter in step (3)；If vehicle is not in OFF grades, enter in step (8)；
(3) PEPS electronic control units receive ABS the near front wheel wheel speed and the information of off-front wheel wheel speed, and judge that two-wheeled wheel speed is
It is no to be less than 5km/h, if two-wheeled wheel speed is less than 5km/h, enter in step (4)；If two-wheeled wheel speed is not less than 5km/h, enter
Enter into step (8)；
(4) PEPS electronic control units electron steering lock sends locking order and electron steering lock is powered；
(5) electronic control unit of electronic steering lock judges whether electronic steering lock is in power-up state, if electrical steering
Lock is in power-up state, then enters in step (6)；If electronic steering lock is not in power-up state, step is entered
(8) in；
(6) electronic control unit of electronic steering lock receives ABS the near front wheel wheel speed and the information of off-front wheel wheel speed, and judges two
Take turns whether wheel speed is less than 5km/h, if two-wheeled wheel speed is less than 5km/h, enter in step (7)；If two-wheeled wheel speed is not less than
5km/h, then enter in step (8)；
(7) electronic steering lock performs lock operation, and terminates the control operation of electronic steering lock；
(8) electric steering is forbidden to perform lock operation.
2. a kind of electric steering method of controlling security according to claim 1, it is characterized in that, in step (3), PEPS
Electronic control unit is connected by CAN with ABS electronic control units, and ABS electronic control units are by ABS the near front wheel wheel speed
PEPS electronic control units are sent to by CAN with the information of off-front wheel wheel speed.
3. a kind of electric steering method of controlling security according to claim 1 or 2, it is characterized in that, in step (3),
PEPS electronic control units judge the ABS the near front wheels received while ABS the near front wheel wheel speed and off-front wheel wheel speed is judged
Effectively whether wheel speed and off-front wheel wheel speed, if two-wheeled wheel speed is effective, is entered in step (4)；If two-wheeled wheel speed is invalid, enter
Enter into step (8).
4. a kind of electric steering method of controlling security according to claim 1, it is characterized in that, ABS the near front wheel wheel speed
ISO 26262ASIL B class requirements are met with the signal of off-front wheel wheel speed.
5. a kind of electric steering method of controlling security according to claim 1, it is characterized in that, in step (4), PEPS
Electronic control unit is connected by the electronic control unit of CAN and electronic steering lock, the Electronic Control list of electronic steering lock
Member receives the block signal that PEPS electronic control units are sent by CAN.
6. a kind of electric steering method of controlling security according to claim 1, it is characterized in that, in step (6), electronics
The electronic control unit of steering lock is connected by CAN with ABS electronic control units, and ABS electronic control units are by an ABS left side
The information of front-wheel wheel speed and off-front wheel wheel speed is sent to the electronic control unit of electronic steering lock by CAN.
7. a kind of electric steering method of controlling security according to claim 1 or 6, it is characterized in that, in step (6),
The electronic control unit of electronic steering lock judges what is received while ABS the near front wheel wheel speed and off-front wheel wheel speed is judged
Effectively whether ABS the near front wheels wheel speed and off-front wheel wheel speed, if two-wheeled wheel speed is effective, is entered in step (7)；If two-wheeled wheel speed
It is invalid, then enter in step (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243637.9A CN106938637A (en) | 2016-12-28 | 2016-12-28 | A kind of electric steering method of controlling security |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243637.9A CN106938637A (en) | 2016-12-28 | 2016-12-28 | A kind of electric steering method of controlling security |
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| Publication Number | Publication Date |
|---|---|
| CN106938637A true CN106938637A (en) | 2017-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611243637.9A Pending CN106938637A (en) | 2016-12-28 | 2016-12-28 | A kind of electric steering method of controlling security |
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| CN105235635A (en) * | 2015-10-28 | 2016-01-13 | 东风汽车公司 | Electronic steering column lock control system and method |
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2016
- 2016-12-28 CN CN201611243637.9A patent/CN106938637A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570168A (en) * | 2009-06-03 | 2009-11-04 | 奇瑞汽车股份有限公司 | Automotive keyless start system and control method thereof |
| EP2581277A1 (en) * | 2011-10-12 | 2013-04-17 | Huf Hülsbeck & Fürst GmbH & Co. KG | Device for a safety system of a motor vehicle with an autonomous electronics system which is independent of the motor vehicle |
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| CN103574021A (en) * | 2012-08-09 | 2014-02-12 | 上海大众汽车有限公司 | Control method for parking lock system of electric vehicle |
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Effective date of abandoning: 20190628 |
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