CN109733322B - Automobile electronic steering column lock control system and method - Google Patents
Automobile electronic steering column lock control system and method Download PDFInfo
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- CN109733322B CN109733322B CN201811652810.XA CN201811652810A CN109733322B CN 109733322 B CN109733322 B CN 109733322B CN 201811652810 A CN201811652810 A CN 201811652810A CN 109733322 B CN109733322 B CN 109733322B
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Abstract
The invention relates to a control system of an electronic steering column lock of an automobile, which comprises the following components: the motor control circuit is used for driving the unlocking or locking of the electronic steering column lock of the automobile; the main controller is used for receiving an automobile ignition signal, sending an enabling signal to the motor control circuit according to the automobile ignition signal so as to drive the motor to unlock or lock the automobile electronic steering column lock and feeding back an unlocking/locking signal; the auxiliary controller is used for receiving a speed signal of the automobile and sending a feedback signal when receiving the speed signal of the automobile; and the power supply control circuit is electrically connected with the motor control circuit, the main controller and the auxiliary controller and is used for disconnecting the power supply voltage of the motor control circuit when the main controller receives the unlocking signal and the auxiliary controller receives the automobile speed signal. The risk of locking by mistake is avoided even if the software of the main controller and the auxiliary controller are in fault, and the safety of automobile running is improved.
Description
Technical Field
The invention relates to the field of automobiles, in particular to an automobile electronic steering column lock control system and method.
Background
An automotive electronic steering column lock is a subsystem of an automotive access system that is mounted to an automotive steering column. When the automobile steering column lock is used, the unlocking is triggered by a signal of a starting button, an unlocking signal is sent to the automobile through the CAN bus after the unlocking, and an engine is started after an engine starting system of the automobile receives the unlocking signal of the electronic steering column lock. When the automobile is not used, the electronic steering column lock can automatically lock the steering column of the steering wheel, so that the automobile cannot be used, and the automobile antitheft device is beneficial to realizing automobile antitheft.
However, the existing electronic steering column lock of the automobile has the risk of being locked by mistake in the high-speed running process of the automobile, so that the automobile has a safety problem.
Disclosure of Invention
Accordingly, it is necessary to provide a control system and a method for an electronic steering column lock of a vehicle, which can prevent the vehicle from being locked by mistake during driving.
An automotive electronic steering column lock control system comprising:
the motor control circuit is used for driving the unlocking or locking of the electronic steering column lock of the automobile;
The main controller is used for receiving an automobile ignition signal, sending an enabling signal to the motor control circuit according to the automobile ignition signal so as to drive the motor to unlock or lock the automobile electronic steering column lock and feeding back an unlocking/locking signal;
The auxiliary controller is used for receiving a speed signal of the automobile and sending a feedback signal when receiving the speed signal of the automobile;
And the power supply control circuit is electrically connected with the motor control circuit, the main controller and the auxiliary controller and is used for disconnecting the power supply voltage of the motor control circuit when the main controller receives the locking signal and the auxiliary controller receives the automobile speed signal.
In one preferred embodiment, the power control circuit includes:
The MOS tube and gate circuit is electrically connected with the main controller and the auxiliary controller, is externally connected with an automobile ignition switch and is used for receiving an unlocking signal of the main controller, a feedback signal of the auxiliary controller and an automobile ignition signal, and when receiving the locking signal, the feedback signal and the automobile ignition signal at the same time, the MOS tube control signal is output;
And the MOS tube control circuit is connected in the power supply circuit of the motor control circuit, is electrically connected with the MOS tube and gate circuit and is used for disconnecting the power supply voltage of the motor control circuit when receiving the MOS tube control signal.
In one preferred embodiment, the automotive electronic steering column control system further comprises:
The filtering circuit is provided with a signal input end, the signal input end is used for receiving an automobile ignition signal, and the filtering circuit is electrically connected with the main controller, the auxiliary controller and the power supply control circuit and is used for filtering the automobile ignition signal.
In one preferred embodiment, the filter circuit comprises:
A diode;
and a first capacitor electrically connected to the signal input end of the diode.
In one preferred embodiment, the main controller comprises a first microcontroller chip.
In one preferred embodiment, the secondary controller comprises a second microcontroller chip.
The automobile electronic steering column lock control system in the embodiment ensures that when the power supply of the ignition switch of the automobile is in an ON state, the power supply of the motor control circuit is cut off, the risk of locking by mistake is avoided even when software of the main controller and the auxiliary controller fails, and the running safety of the automobile is improved.
An automobile electronic steering column lock control method, which utilizes the automobile electronic steering column lock control system.
According to the automobile electronic steering column lock control method in the embodiment, when the power supply of the ignition switch of the automobile is in the ON state, the power supply of the motor control circuit is cut off, the risk of locking by mistake is avoided even if software of the main controller and software of the auxiliary controller are in faults, and the safety of automobile running is improved.
Drawings
FIG. 1 is a schematic block diagram of an automotive electronic steering column lock control system in accordance with a preferred embodiment of the present invention;
FIG. 2 is a schematic circuit connection diagram of a master controller of an automotive electronic steering column lock control system according to a preferred embodiment of the present invention;
FIG. 3 is a schematic circuit connection diagram of an auxiliary controller of an automotive electronic steering column lock control system according to a preferred embodiment of the present invention;
FIG. 4 is a schematic circuit diagram of the MOS transistor and gate circuit of the control system of the electronic steering column lock of the automobile according to a preferred embodiment of the present invention;
Fig. 5 is a schematic circuit diagram of a MOS transistor control circuit of an electronic steering column lock control system for a vehicle according to a preferred embodiment of the present invention
Fig. 6 is a circuit schematic of a filter circuit of an automotive electronic steering column lock control system according to a preferred embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the present invention discloses an automotive electronic steering column lock control system 100, and the automotive electronic steering column lock control system 100 includes a motor control circuit 110, a main controller 120, an auxiliary controller 130, and a power control circuit 140.
The motor control circuit 110 is used to drive the unlocking or locking of the electronic steering column lock of the automobile.
Specifically, the motor control circuit 110 has a driving motor 111 and at least one driving switch, and the driving motor 110 is electrically connected to a power supply of the vehicle, and when the driving switch is turned on, the driving motor 111 drives the electronic steering column lock of the vehicle to rotate for unlocking or locking.
In this embodiment, the motor control circuit 110 has four driving switches, namely, a first switch K1, a second switch K2, a third switch K3 and a fourth switch K4, and the four driving switches cooperate with the driving motor 111 to form an H-bridge driving circuit, when the second switch K2 and the third switch K3 are closed, the circuit is turned on, the driving motor 111 rotates, when the first switch K1 and the fourth switch K4 are closed, the motor control circuit 110 also turns on, and the driving motor 111 also rotates, so that the electronic steering lock of the automobile is unlocked or locked.
As shown in fig. 1 and 2, the main controller 120 is configured to receive an ignition signal of an automobile, send an enabling signal to the motor control circuit according to the ignition signal of the automobile, so as to drive the motor to unlock or lock the electronic steering column lock of the automobile, and feed back an unlock signal;
Specifically, when the automobile operator turns on the automobile ignition switch, the automobile ignition switch Guan Xiangshang sends an automobile ignition signal to the main controller 120, and when the main controller 120 receives the automobile ignition signal, it sends an enable signal to the motor control circuit.
In this embodiment, the main controller 120 is electrically connected to the second switch K2 and the third switch K3 of the motor control circuit 110, and when the main controller 120 receives the ignition signal of the vehicle, the main controller 120 controls the second switch K2 and the third switch K3 to be closed, so that the driving motor 111 of the motor control circuit 110 operates, thereby achieving the purpose of locking the electronic steering column lock. At this time, an unlock signal is fed back to the above-described main controller 120.
The main controller 120 includes a first microcontroller chip.
As shown in fig. 1 and 3, the auxiliary controller 130 is configured to receive a vehicle speed signal of an automobile, and send a feedback signal when receiving the vehicle speed signal of the automobile.
Specifically, the auxiliary controller 130 is matched with a vehicle speed sensor of the vehicle to receive a vehicle speed signal of the vehicle, and when the vehicle is running, the vehicle speed sensor detects the vehicle speed signal of the vehicle running and sends the vehicle speed signal to the auxiliary controller 130, and after receiving the vehicle speed signal, the auxiliary controller 130 sends a feedback signal to the power control circuit 140.
In this embodiment, the auxiliary controller 130 may be electrically connected to the second switch K2 of the motor control circuit 110 and the ignition switch of the automobile, and the main controller 120 may be electrically connected to the fourth switch K4. When the ignition switch of the automobile is turned on, the main controller 120 controls the fourth switch K4 to be turned on, and the auxiliary controller 130 controls the second switch K2 to be turned on, so that the driving motor 111 of the motor control circuit 110 acts, and the purpose of locking the electronic steering column lock can be achieved.
The secondary controller 130 includes a second microcontroller chip.
The power control circuit 140 is electrically connected to the motor control circuit 110, the main controller 120, and the auxiliary controller 130, and is configured to disconnect the power supply voltage of the motor control circuit 110 when the main controller 120 receives the unlocking signal and the auxiliary controller 130 receives the vehicle speed signal, so as to stop the motor control circuit 110.
Specifically, the power control circuit 140 includes a MOS transistor and gate 141 and a MOS transistor control circuit 142.
Referring to fig. 1 and 4, the MOS transistor and gate 141 is electrically connected to the main controller 120 and the auxiliary controller 130, and is externally connected to an ignition switch of an automobile. When the main controller 120 receives the blocking signal, it outputs a main controller signal to the input end of the MOS transistor and gate 141, and when the auxiliary controller 130 receives the vehicle speed signal, it sends the feedback signal of the auxiliary controller to the input end of the MOS transistor and gate 141; meanwhile, when the input end of the MOS transistor and gate 141 receives the ignition switch signal of the automobile, the unlock signal of the main controller 120, and the feedback signal of the auxiliary controller 130, the output end of the MOS transistor and gate 141 outputs a control signal to control the MOS transistor control circuit.
In more detail, the MOS transistor and gate 141 includes a resistor, a capacitor, a first transistor, and a second transistor, which are sequentially disposed.
As shown in fig. 1 and 5, the MOS transistor control circuit 142 is connected to the power supply circuit of the motor control circuit 110, and is electrically connected to the MOS transistor and gate circuit 141, so as to disconnect the power supply voltage of the motor control circuit when receiving the MOS transistor control signal.
In detail, the MOS transistor control circuit 142 includes a resistor and a control chip.
Referring to fig. 1 and 6, the above-mentioned control system 100 for an electronic steering column lock of a vehicle further includes a filter circuit 150, the filter circuit 150 has a signal input end, the signal input end is configured to receive an ignition signal of the vehicle, and the filter circuit 150 is electrically connected to the main controller 120, the auxiliary controller 130, and the power control circuit 140, and is configured to filter the ignition signal of the vehicle.
In more detail, the filter circuit 150 includes a diode and a first capacitor electrically connected to a signal input terminal of the diode.
The automobile electronic steering column lock control system 100 in the embodiment of the invention ensures that when the power supply of the ignition switch of the automobile is in an ON state, the power supply of the motor control circuit is cut off, the risk of locking by mistake is avoided even when software of the main controller and the auxiliary controller are in faults, and the running safety of the automobile is improved.
Another preferred embodiment of the present invention discloses an automotive electronic steering column lock control method that utilizes the automotive electronic steering column lock control system 100 of the above-described embodiment.
According to the automobile electronic steering column lock control method in the embodiment of the invention, when the power supply of the ignition switch of the automobile is in the ON state, the power supply of the motor control circuit is cut off, the risk of locking by mistake is avoided even if software of the main controller and software of the auxiliary controller are in faults, and the running safety of the automobile is improved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (2)
1. An automotive electronic steering column lock control system, comprising:
the motor control circuit is used for driving the unlocking or locking of the electronic steering column lock of the automobile;
The main controller is used for receiving an automobile ignition signal, sending an enabling signal to the motor control circuit according to the automobile ignition signal so as to drive the motor to unlock or lock the automobile electronic steering column lock and feeding back an unlocking signal;
The auxiliary controller is used for receiving a speed signal of the automobile and sending a feedback signal when receiving the speed signal of the automobile;
the power supply control circuit is electrically connected with the motor control circuit, the main controller and the auxiliary controller and used for disconnecting the power supply voltage of the motor control circuit when the main controller receives the unlocking signal and the auxiliary controller receives the automobile speed signal;
the power supply control circuit includes:
The MOS tube and gate circuit is electrically connected with the main controller and the auxiliary controller, is externally connected with an automobile ignition switch and is used for receiving an unlocking signal of the main controller, a feedback signal of the auxiliary controller and an automobile ignition signal, and when receiving the unlocking signal, the feedback signal and the automobile ignition signal at the same time, the MOS tube control signal is output;
the MOS tube control circuit is connected in the power supply circuit of the motor control circuit and is electrically connected with the MOS tube and gate circuit, and is used for disconnecting the power supply voltage of the motor control circuit when receiving the MOS tube control signal;
The automobile electronic steering column lock control system further comprises: the filtering circuit is provided with a signal input end and is used for receiving an automobile ignition signal, and the filtering circuit is electrically connected with the main controller, the auxiliary controller and the power supply control circuit and is used for filtering the automobile ignition signal; the filter circuit includes: a diode;
and a first capacitor electrically connected to the signal input terminal of the diode;
The main controller comprises a first microcontroller chip; the secondary controller includes a second microcontroller chip.
2. A control method of an automotive electronic steering column lock, characterized by using the automotive electronic steering column lock control system according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811652810.XA CN109733322B (en) | 2018-12-29 | 2018-12-29 | Automobile electronic steering column lock control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811652810.XA CN109733322B (en) | 2018-12-29 | 2018-12-29 | Automobile electronic steering column lock control system and method |
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| Publication Number | Publication Date |
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| CN109733322A CN109733322A (en) | 2019-05-10 |
| CN109733322B true CN109733322B (en) | 2024-06-28 |
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| CN201811652810.XA Active CN109733322B (en) | 2018-12-29 | 2018-12-29 | Automobile electronic steering column lock control system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110962797A (en) * | 2019-12-27 | 2020-04-07 | 上海昶枫科技有限公司 | Automobile electronic steering column lock control system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101503087A (en) * | 2008-02-04 | 2009-08-12 | 联创汽车电子有限公司 | Electronic steering column lock controller and implementing method thereof |
| JP2014091483A (en) * | 2012-11-06 | 2014-05-19 | Honda Lock Mfg Co Ltd | Vehicle control device |
| CN207033136U (en) * | 2017-08-09 | 2018-02-23 | 天合汽车零部件（苏州）有限公司 | Automotive electronics lock for steering column control system |
| CN209634428U (en) * | 2018-12-29 | 2019-11-15 | 必赛斯汽车科技(苏州)有限公司 | Automotive electronics lock for steering column control system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746351B (en) * | 2008-12-17 | 2011-12-14 | 联创汽车电子有限公司 | Control system of automobile steering column lock |
| JP5876401B2 (en) * | 2012-10-24 | 2016-03-02 | 株式会社ホンダロック | Vehicle control device |
| CN102941836B (en) * | 2012-12-04 | 2016-01-13 | 奇瑞汽车股份有限公司 | Electronic steering column lock control device and automobile |
| CN105235635B (en) * | 2015-10-28 | 2017-11-24 | 东风汽车公司 | Electronic steering column lock control system and its control method |
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2018
- 2018-12-29 CN CN201811652810.XA patent/CN109733322B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101503087A (en) * | 2008-02-04 | 2009-08-12 | 联创汽车电子有限公司 | Electronic steering column lock controller and implementing method thereof |
| JP2014091483A (en) * | 2012-11-06 | 2014-05-19 | Honda Lock Mfg Co Ltd | Vehicle control device |
| CN207033136U (en) * | 2017-08-09 | 2018-02-23 | 天合汽车零部件（苏州）有限公司 | Automotive electronics lock for steering column control system |
| CN209634428U (en) * | 2018-12-29 | 2019-11-15 | 必赛斯汽车科技(苏州)有限公司 | Automotive electronics lock for steering column control system |
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Address after: 215131 No. 2052 Taidong Road, Caohu Street, Xiangcheng Economic Development Zone, Suzhou City, Jiangsu Province Applicant after: Lisheng Automotive Technology (Suzhou) Co.,Ltd. Address before: 215131 No. 2052 Taidong Road, Caohu Street, Xiangcheng Economic Development Zone, Suzhou City, Jiangsu Province Applicant before: BCS AUTOMOTIVE INTERFACE SOLUTIONS (SUZHOU) Co.,Ltd. |
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