CN207725389U - A kind of electronic parking control system with redundancy parking function - Google Patents
A kind of electronic parking control system with redundancy parking function Download PDFInfo
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- CN207725389U CN207725389U CN201721224734.3U CN201721224734U CN207725389U CN 207725389 U CN207725389 U CN 207725389U CN 201721224734 U CN201721224734 U CN 201721224734U CN 207725389 U CN207725389 U CN 207725389U
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Abstract
The utility model discloses a kind of electronic parking control systems with redundancy parking function, including EPB electronic control units, clamp executing agency；The EPB electronic control units include electronic parking control module, electric power management circuit；Redundancy parking control unit is set in the parking control system, the redundancy parking control unit includes EPB switches, Slope Transducer module, motor drive module in EPB electronic control units, is additionally provided with redundancy parking control module, redundant module electric power management circuit；The redundancy parking control module is connect by a plurality of signal line with electronic parking control module.Using above-mentioned technical proposal, normal parking function and emergency braking function can be met and replace the P shelves lockable mechanism functions of automatic gear-box, improve the safety of parking, have many advantages, such as it is at low cost, convenient for arrangement.
Description
Technical field
The utility model belongs to the technical field of motor vehicle braking systems control.More specifically, the utility model is related to one
Electronic parking control system of the kind with redundancy parking function.
Background technology
National standard GB21670 regulation is equipped with the passenger car of electronic parking control system (referred to as " EPB "), when power cord it
When outer harness or controller fail, vehicle remains able to be fully loaded with parking on the ramp of 8% gradient.It is stayed for this purpose, being equipped with
The vehicle of car stop position (P grades) lockable mechanism, when vehicle is in P grades, internal lockable mechanism locks gearbox.
With the extensive use of EPB, EPB electronic control units control clamp executing agency and realize parking function, and unilateral
Electronic parking mechanism can meet the parking ability in 8% ramp.
Vehicle parking can realize parking by EPB or P grades of lockable mechanism.Vehicle from structure, arrangement, cost, energy saving etc. because
Element considers that cancelling P grades of lockable mechanisms becomes a kind of trend.If cancelling P grades of lockable mechanisms, in the failure of electronic parking control module
In the case of, above-mentioned ramp parking requirement is cannot be satisfied, vehicle safety can be caused to reduce.Therefore, it is necessary to be arranged by new technology
It applies and avoids above-mentioned risk.
Utility model content
The utility model provides a kind of electronic parking control system with redundancy parking function, and the purpose is to improve vehicle
The safety of parking.
To achieve the goals above, the technical solution that the utility model is taken is：
The electronic parking control system with redundancy parking function of the utility model, including EPB electronic control units, card
Clamp executing agency；The EPB electronic control units include electronic parking control module, EPB electric power management circuits；
Redundancy parking control unit is set in the parking control system, and the redundancy parking control unit includes
EPB switches, Slope Transducer module, motor drive module in EPB electronic control units are additionally provided with redundancy parking control mould
Block, electric power management circuit；
The redundancy parking control module is connect by a plurality of signal line with electronic parking control module.
The electronic parking control module, redundancy parking control module pass through CAN signal circuit and connect vehicle body CAN respectively
Bus.
The electronic parking control module, redundancy parking control module pass through signal line and motor drive module respectively
Connection.
The motor drive module is connect by signal line with clamp executing agency.
In a plurality of signal line that the redundancy parking control module is connect with electronic parking control module, therein one
Item is EPB switching signal circuits, and EPB is arranged on the circuit and switchs.
In a plurality of signal line that the redundancy parking control module is connect with electronic parking control module, therein one
Gradient transducing signal circuit, the Slope Transducer module are arranged on the circuit.
In a plurality of signal line that the redundancy parking control module is connect with electronic parking control module, therein one
Item is condition indicative signal circuit, and state instruction device is arranged on the circuit.
In order to realize goal of the invention identical with above-mentioned technical proposal, the utility model, which additionally provides, above-described to be had
The control method of the electronic parking control system of redundancy parking function, technical solution are：
It is mutually communicated between the electronic parking control module and redundancy parking control module, two control modules are logical
It crosses corresponding CAN communication circuit and receives whole vehicle state information, controlled for parking；
It, will be by electronic parking when two modules of electronic parking control module and redundancy parking control module work normally
Control module controls left motor drive module；Redundancy parking control module controls right motor drive module, passes through two control moulds
Block drives left clamp executing agency, right clamp executing agency simultaneously respectively, to realize parking；
When electronic parking control module fails, redundancy parking control module passes through left motor according to control data
Drive module, right motor drive module respectively drive left clamp executing agency, right clamp executing agency, to realize parking；
When redundancy parking control module fails, electronic parking control module passes through left motor according to control data
Drive module, right motor drive module respectively drive left clamp executing agency, right clamp executing agency to realize parking.
When electronic parking control module or electric power management circuit fail, redundancy parking control module is logical by CAN
Letter circuit receives CAN signal and judges whole vehicle state, receives redundancy parking signal, sends control signal and controls mould to redundancy parking
Block respectively drives left clamp executing agency, right clamp executing agency by left motor drive module, right motor drive module, with
Realize parking.
While the above process, if the above process is stayed by actuating EPB switches request EPB electronic control units or redundancy
Vehicle control unit can also realize above-mentioned parking function.
The utility model use above-mentioned technical proposal, can meet normal parking function and emergency braking function and with
Replace automatic gear-box P shelves lockable mechanism functions, have many advantages, such as it is at low cost, be convenient for arrange.Advantage is：
1, independence：A kind of electronic parking control system of included redundancy parking function, redundancy parking control unit and EPB
Electronic control unit, two sets of relatively independent operations of control unit, control respectively accesses the input terminal of motor drive module, by patrolling
Volume setting makes two units there is a situation where interfere driving simultaneously；
2, portable：Redundancy parking control unit can be used as independent control module, or with EPB electronic control units one
It rises, is integrated in the same control unit, or be integrated in the other control units of vehicle (such as body electronics systems stabilisation, vehicle body control
Device processed, vehicle control device, electrical steering controller, safety air sac controller, battery management controller, brake-by-wire device) in；
3, safety：Ensure the failure of electronic parking control module or unilateral motor drive module failure or redundancy parking control
Parking safety when Module Fail or all the way CAN signal circuit malfunction or all the way electric power management circuit fail.
4, energy saving：Cancel P grades of lockable mechanisms, complete vehicle weight can be mitigated, be conducive to energy-saving and emission-reduction.
Description of the drawings
Label in content and figure shown in attached drawing is briefly described as follows：
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is that the redundancy parking control unit of the utility model is integrated in the structural representation in the other control units of vehicle
Figure；
Fig. 3 is EPB electronic control units, left motor drive module, left clamp the executing agency composition one of the utility model
A independent control system architecture schematic diagram.
In figure label for：
S1, EPB electronic control unit, S2, redundancy parking control unit, S3, other control units, S4, left independent control
System, S5, right autonomous control system；
1, accumulator, 2, EPB electric power management circuits, 3, electronic parking control module, 4, EPB switches, 5, Slope Transducer
Module, 6, CAN communication circuit, 7, left motor drive module, 8, right motor drive module, 9, left clamp executing agency, 10, right card
Clamp executing agency, 11, redundancy parking control module, 12, redundant module electric power management circuit, 13, CAN communication circuit, 14, vehicle body
CAN bus, 15, state instruction device.
Specific implementation mode
Below against attached drawing, by the description of the embodiment, making to specific embodiment of the present utility model further detailed
Thin explanation, with help those skilled in the art to the inventive concept of the utility model, technical solution have it is more complete, accurate and
Deep understanding.
The structure of the utility model as shown in Figure 1, Figure 2 and Figure 3 is the electronic parking control system with redundancy parking function
System, including EPB electronic control units S1, clamp executing agency；The EPB electronic control units S1 includes electronic parking control
Module 3, electric power management circuit.Electric power management circuit includes EPB electric power management circuits 2 and redundant module electric power management circuit 12.
The EPB electric power management circuits provide operating voltage for EPB electronic control units.
The electronic parking control module is the core control brain of EPB electronic control units S1, is connected with modules
It connects and realizes the control and communication between modules.
The EPB electronic control unit S1, when electronic parking control module or EPB electric power management circuits fail
When, it will lose parking function.
Clamp executing agency includes left clamp executing agency 9, right clamp executing agency 10.
Motor vehicle described in the utility model, including but not limited to passenger car, commercial car.
In above-mentioned attached drawing：
Indicate control signal transfer line；
Indicate power supply supply route；
Indicate the block diagram line of composition EPB electronic control units S1；
Indicate the block diagram line of composition redundancy parking control unit S2.
In order to solve the problems, such as of the existing technology and overcome its defect, the invention for the safety for improving vehicle parking is realized
Purpose, the technical solution that the utility model is taken are：
It is stayed as shown in Figure 1, redundancy is arranged in the electronic parking control system with redundancy parking function of the utility model
Vehicle control unit S2, the redundancy parking control unit S2 include that EPB switches 4 in EPB electronic control units S1, the gradient pass
Sensor module 5, motor drive module are additionally provided with redundancy parking control module 11, electric power management circuit；
The Slope Transducer module 5, the inclination angle size where can detect vehicle in a certain gradient, and there is self-test work(
Energy.
The motor drive module includes left motor drive module 7, right motor drive module 8, redundancy parking control mould
Block 11, electric power management circuit 12, CAN communication circuit 13, state instruction 15.
The CAN communication circuit is connected to vehicle body CAN bus, establishes and communicates between the other modules of vehicle.
The motor drive module is made of left motor drive module 7,8 two parts of right motor drive module, two-way electricity
Machine drive module is completed control command being converted to drive signal drive motor rotation, carries out malfunction monitoring in real time.It is stayed when unilateral
When vehicle executing agency driving circuit or executing agency itself break down, a unilateral control device remains able to meet
8% parking requirement.
The redundancy parking control module 11 is connect by a plurality of signal line with electronic parking control module 3.
The electric power management circuit 2 connects accumulator 1.EPB electronic control units S1 and redundancy parking control unit S2
Two units are respectively provided with：Independent CAN communication circuit module, independent electric power management circuit module and independent control logic
Circuit module.
The accumulator provides working power for entire electronic brake system.
The redundancy parking control module 11 is parking demand estimation and executes the decision brain of parking.
Described and redundant module electric power management circuit 12 is that redundancy parking control module 11 provides operating voltage.
The CAN communication circuit is connected to vehicle body CAN bus, establishes and communicates between the other modules of vehicle.
The electronic brake system of the utility model, including above-mentioned EPB electronic control units and redundancy parking control are single
Member.Wherein, electronic parking control module and redundancy parking control module, in the case of capable of ensureing any of which Module Fail,
Another module can control left and right motor drive module and left and right clamp executing agency is driven to realize parking.
It is mutually monitored between electronic parking control module and redundancy parking control module：When electronic parking control module and superfluous
When two modules of remaining parking control module work normally, left motor drive module will be controlled by electronic parking control module, it is superfluous
Remaining parking control module controls right motor drive module, drives left and right clamp to execute machine simultaneously respectively by two control modules
Structure is to realize parking；When electronic parking control module fails, redundancy parking control module passes through according to control data
Left and right motor drive module respectively drives left and right clamp executing agency to realize parking；When redundancy parking control module is lost
When effect, electronic parking control module respectively drives left and right clamp according to control data, by left and right motor drive module and executes
Mechanism is to realize parking.
Redundancy parking control module dynamic monitors electronic parking control module whether normal operation, electronic parking control module
Not by the interference effect of redundancy parking control module in the case of normal work.Simultaneously in the failure of electronic parking control module
In the case of, redundancy parking control unit judges whole vehicle state by CAN bus, control redundancy parking control module with drive it is left,
Right clamp executing agency realizes parking.
As shown in Figure 1, redundancy parking control unit S2 provided by the utility model, can be used as independent control module,
Or be integrated in the same control unit with EPB electronic control units S1, the real-time status of vehicle is obtained by CAN network, it is real
Now with all parking functions described in attached drawing 1.
Function of the utility model is：
1, electronic parking control module 3 and redundancy parking control module 11, can ensure the feelings of any of which Module Fail
Under condition, another module can control left motor drive module 7, right motor drive module 8 drives left clamp executing agency 9, right card
Executing agency 10 is clamped, realizes parking.
2, left motor drive module 7, right motor drive module 8 and left clamp executing agency 9, right clamp executing agency 10,
In the case of any unilateral failure failure, the other side disclosure satisfy that the ramp parking function of the 8% of laws and regulations requirement.
3, redundancy parking control unit S2 can be used as independent control module, or together with EPB electronic control units S1,
It is integrated in the same control unit, or is integrated in vehicle other control unit S3 (such as body electronics systems stabilisation, Body Controls
Device, vehicle control device, electrical steering controller, safety air sac controller, battery management controller, brake-by-wire device) in.
4, the parking request signal that EPB electronic control units S1 and redundancy parking control unit S2 are received, may be from vehicle
Body CAN bus 14 can also come from EPB switches 4.
5, EPB electronic control units S1, left motor drive module 7, left clamp executing agency 9 constitute an independent control
System S4 processed；Redundancy parking control unit S2, right motor drive module 8, right clamp executing agency 10 also constitute an independence
Control system S5.Two autonomous systems are in communication with each other, and left clamp executing agency 9, right clamp is driven to execute machine simultaneously respectively
Structure 10, to realize parking.
The utility model can solve parking security risk in the case where cancelling P grades of lockable mechanisms, ensure parking peace
Entirely.By increasing redundancy parking control unit, vehicle safety was not only improved, has reduced energy consumption, but also reduced integral vehicle cost.
The concrete structure of the utility model：
The electronic parking control module 3, redundancy parking control module 11 pass through CAN signal circuit and connect vehicle body respectively
CAN bus 14.I.e.：It is logical that EPB electronic control units S1 and redundancy parking control unit two units of S2 are respectively provided with independent CAN
Believe circuit module.
The electronic parking control module 3, redundancy parking control module 11 pass through signal line respectively and motor drives
Module connects.I.e.：EPB electronic control units S1 and redundancy parking control unit two units of S2 are respectively provided with independent control and patrol
Collect circuit module.
The motor drive module is connect by signal line with clamp executing agency.
In a plurality of signal line that the redundancy parking control module 11 is connect with electronic parking control module 3, wherein
One be EPB switching signal circuits, EPB switches 4 are set on the circuit.
The EPB switches 4, this module can realize the control to switching input/output signal, and carry out fault detect
Deng.The EPB switches 4 were not only connect with redundancy parking control module 11, but also were connect with electronic parking control module 3.
The Slope Transducer module 5 was not only connect with redundancy parking control module 11, but with electronic parking control module 3
Connection.
The state instruction device 15 was not only connect with redundancy parking control module 11, but with electronic parking control module 3
Connection.
In a plurality of signal line that the redundancy parking control module 11 is connect with electronic parking control module 3, wherein
A gradient transducing signal circuit, the Slope Transducer module 5 be arranged on the circuit.
In a plurality of signal line that the redundancy parking control module 11 is connect with electronic parking control module 3, wherein
One be condition indicative signal circuit, state instruction device 15 is set on the circuit.The state instruction is EPB electricity
Sub-control unit or redundancy parking control unit outwardly transmit the channel of information.
In order to realize goal of the invention identical with above-mentioned technical proposal, the utility model, which additionally provides, above-described to be had
The control method of the electronic parking control system of redundancy parking function, technical solution are：
It is mutually communicated between the electronic parking control module 3 and redundancy parking control module 11, two control modules
Whole vehicle state information is received by corresponding CAN communication circuit 6, CAN communication circuit 13, is controlled for parking；
It, will be by electronics when 11 two modules of electronic parking control module 3 and redundancy parking control module work normally
Parking control module 3 controls left motor drive module 7；Redundancy parking control module 11 controls right motor drive module 8, passes through two
A control module drives left clamp executing agency 9, right clamp executing agency 10 simultaneously respectively, to realize parking；
When electronic parking control module 3 fails, redundancy parking control module 11 passes through left electricity according to control data
Machine drive module 7, right motor drive module 8 respectively drive left clamp executing agency 9, right clamp executing agency 10, are stayed with realizing
Vehicle；
When redundancy parking control module 11 fails, electronic parking control module 3 passes through left electricity according to control data
Machine drive module 7, right motor drive module 8 respectively drive left clamp executing agency 9, right clamp executing agency 10 is stayed with realizing
Vehicle.
When electronic parking control module 3 or electric power management circuit 2 fail, redundancy parking control module 11 passes through
CAN communication circuit 13 receives CAN signal and judges whole vehicle state, receives redundancy parking signal, sends control signal and gives redundancy parking
Control module 11 respectively drives left clamp executing agency 9, right clamp by left motor drive module 7, right motor drive module 8
Executing agency 10, to realize parking.
While the above process, if the above process asks EPB electronic control units S1 or superfluous by actuating EPB switches 4
Remaining parking control unit S2, can also realize above-mentioned parking function.
It is mutually communicated between the electronic parking control module 3 and redundancy parking control module 11, two control modules
By 4 receiving status information of EPB switches, controlled for parking；
When CAN communication circuit 6 fails, by redundancy parking control unit S2 control left and right clamp executing agency 9,
10, to realize parking；
When redundancy CAN telecommunication circuit 13 fails, pass through EPB electronic control unit S1) control left and right clamp execution
Mechanism 9,10, to realize parking；
When EPB switches 4 fail, controlled respectively by EPB electronic control units S1 and redundancy parking control unit S2
Left and right clamp processed executing agency 9,10, to realize parking；
When left motor drive module 7 fails, right motor drive module 8 is driven by redundancy parking control module 11
Right clamp executing agency 10 is controlled, to realize right side parking；
When right motor drive module 8 fails, left motor drive module 7 is driven by electronic parking control module 3
Left clamp executing agency 9 is controlled, to realize left side parking.
As shown in Fig. 2, redundancy parking control unit S2 provided by the present invention, may alternatively be integrated within the other control units of vehicle
In S3.Other control unit S3 include but not limited to that body electronics systems stabilisation, Body Control etc. are all with the relevant control of vehicle
Unit processed, such as body electronics systems stabilisation, car body controller, vehicle control device, electrical steering controller, air bag control
Device, battery management controller, brake-by-wire device.
As shown in figure 3, EPB electronic control units S1 provided by the utility model, left motor drive module 7, left clamp
Executing agency 9 constitutes an independent control system；Redundancy parking control unit S2, right motor drive module 8, right clamp are held
Row mechanism 10 constitutes an independent control system.The two systems are in communication with each other, and drive left clamp to execute machine simultaneously respectively
Structure 9, right clamp executing agency 10, to realize parking.
In conclusion certain occurs for the electronic parking control module or electric power management circuit worked as in EPB electronic control units
When malfunction and failure, EPB parking functions will partially or completely be lost.Meanwhile to meet when unilateral control device driving electricity
When road or executing agency itself are broken down, a unilateral control device remains able to meet 8% parking requirement, is taking
Disappear in the case of P grades of lockable mechanisms, provides a kind of control mode increasing redundancy parking control module.
When unilateral control device driving circuit or executing agency itself break down, a unilateral parking executes machine
Structure remains able to meet 8% parking requirement.
In order to realize and improve vehicle safety, the utility model applies protection in the following manner：
1, increased redundancy parking control module is in parallel with EPB electronic parking control modules, and two sets of control systems are relatively only
Vertical operation；
2, the input terminal of above-mentioned control module access motor drive module makes two systems not occur together by logic setting
When interference driving；
3, control logic：By the coordination system mainly between electronic parking control module and redundancy parking control module,
Whether working condition mutually between two modules of monitoring, meet redundancy parking control module real-time judge electronic parking control module
Failure, to timely respond to parking request；
4, the parking request signal switched from CAN network, EPB, redundancy parking control module can respond, by upper
It states function logic and applies parking.
The utility model is exemplarily described above in conjunction with attached drawing, it is clear that the utility model specific implementation not by
The limitation of aforesaid way, as long as using the methodology of the utility model and various unsubstantialities that technical solution carries out change
Into, or it is not improved the design of the utility model and technical solution are directly applied into other occasions, in the utility model
Protection domain within.
Claims (7)
1. a kind of electronic parking control system with redundancy parking function, including EPB electronic control units (S1), clamp execute
Mechanism (9,10)；The EPB electronic control units (S1) include electronic parking control module (3), EPB electric power management circuits
(2)；
It is characterized in that：
Redundancy parking control unit (S2), the redundancy parking control unit (S2) packet are set in the parking control system
EPB switches (4), Slope Transducer module (5), the motor drive module (7,8) in EPB electronic control units (S1) are included, is also set
There are redundancy parking control module (11), redundant module electric power management circuit (12)；
The redundancy parking control module (11) is connect by a plurality of signal line with electronic parking control module (3).
2. the electronic parking control system described in accordance with the claim 1 with redundancy parking function, it is characterised in that：Described
Electronic parking control module (3), redundancy parking control module (11) connect vehicle body CAN by CAN signal circuit (6,13) respectively
Bus (14).
3. the electronic parking control system described in accordance with the claim 1 with redundancy parking function, it is characterised in that：Described
Electronic parking control module (3), redundancy parking control module (11) are connected by signal line and motor drive module (7,8) respectively
It connects.
4. the electronic parking control system described in accordance with the claim 1 with redundancy parking function, it is characterised in that：Described
Motor drive module (7,8) is connect by signal line with clamp executing agency (9,10).
5. the electronic parking control system described in accordance with the claim 1 with redundancy parking function, it is characterised in that：Described
In a plurality of signal line that redundancy parking control module (11) is connect with electronic parking control module (3), one therein is EPB
EPB switches (4) are arranged in switching signal circuit on the circuit.
6. the electronic parking control system described in accordance with the claim 1 with redundancy parking function, it is characterised in that：Described
In a plurality of signal line that redundancy parking control module (11) is connect with electronic parking control module (3), a gradient therein
Transducing signal circuit, the Slope Transducer module (5) are arranged on the circuit.
7. the electronic parking control system described in accordance with the claim 1 with redundancy parking function, it is characterised in that：Described
In a plurality of signal line that redundancy parking control module (11) is connect with electronic parking control module (3), one therein is shape
State instruction device (15) is arranged in state indication signal circuit on the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721224734.3U CN207725389U (en) | 2017-09-22 | 2017-09-22 | A kind of electronic parking control system with redundancy parking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721224734.3U CN207725389U (en) | 2017-09-22 | 2017-09-22 | A kind of electronic parking control system with redundancy parking function |
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| Publication Number | Publication Date |
|---|---|
| CN207725389U true CN207725389U (en) | 2018-08-14 |
Family
ID=63090642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721224734.3U Active CN207725389U (en) | 2017-09-22 | 2017-09-22 | A kind of electronic parking control system with redundancy parking function |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717175A (en) * | 2020-06-24 | 2020-09-29 | 苏州萨克汽车科技有限公司 | Electronic parking switch |
| CN112498319A (en) * | 2020-08-20 | 2021-03-16 | 上海擎度汽车科技有限公司 | Electronic parking control system |
| CN112703138A (en) * | 2018-09-18 | 2021-04-23 | 克诺尔商用车制动***有限公司 | Brake system for vehicle |
| CN112739593A (en) * | 2020-12-22 | 2021-04-30 | 华为技术有限公司 | Parking brake system of automobile, automobile and control method of automobile |
| CN113264026A (en) * | 2021-06-15 | 2021-08-17 | 东风汽车集团股份有限公司 | New energy automobile electron parking control system |
| EP3838695A4 (en) * | 2018-09-27 | 2021-10-27 | Bethel Automotive Safety Systems Co., Ltd. | Brake system having two independent control functions and method for controlling same |
| CN114852034A (en) * | 2022-06-08 | 2022-08-05 | 中国第一汽车股份有限公司 | Redundant parking braking method and system, electronic equipment and storage medium |
| EP4119404A4 (en) * | 2020-03-11 | 2024-04-10 | China Faw Co., Ltd. | Parking redundancy control method, automatic driving system, and driving device |
-
2017
- 2017-09-22 CN CN201721224734.3U patent/CN207725389U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112703138A (en) * | 2018-09-18 | 2021-04-23 | 克诺尔商用车制动***有限公司 | Brake system for vehicle |
| EP3838695A4 (en) * | 2018-09-27 | 2021-10-27 | Bethel Automotive Safety Systems Co., Ltd. | Brake system having two independent control functions and method for controlling same |
| EP4119404A4 (en) * | 2020-03-11 | 2024-04-10 | China Faw Co., Ltd. | Parking redundancy control method, automatic driving system, and driving device |
| CN111717175A (en) * | 2020-06-24 | 2020-09-29 | 苏州萨克汽车科技有限公司 | Electronic parking switch |
| CN111717175B (en) * | 2020-06-24 | 2021-12-21 | 苏州萨克汽车科技有限公司 | Electronic parking switch |
| CN112498319A (en) * | 2020-08-20 | 2021-03-16 | 上海擎度汽车科技有限公司 | Electronic parking control system |
| CN112739593A (en) * | 2020-12-22 | 2021-04-30 | 华为技术有限公司 | Parking brake system of automobile, automobile and control method of automobile |
| CN113264026A (en) * | 2021-06-15 | 2021-08-17 | 东风汽车集团股份有限公司 | New energy automobile electron parking control system |
| CN114852034A (en) * | 2022-06-08 | 2022-08-05 | 中国第一汽车股份有限公司 | Redundant parking braking method and system, electronic equipment and storage medium |
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