CN210502649U - Electronic parking system - Google Patents
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- CN210502649U CN210502649U CN201921395226.0U CN201921395226U CN210502649U CN 210502649 U CN210502649 U CN 210502649U CN 201921395226 U CN201921395226 U CN 201921395226U CN 210502649 U CN210502649 U CN 210502649U
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Abstract
The utility model relates to an electronic parking system, including first set of parking control system and second set of parking control system, first set of parking control system includes parking switch, first parking control module and the first parking executor that connects gradually, and first parking control module is used for receiving the signal of parking switch and controlling the action of first parking executor; the second set of parking control system comprises a P gear button module, a second parking control module and a second parking actuator which are sequentially connected, the second parking control module is used for receiving signals of the P gear button module and controlling the second parking actuator to act, and the first parking control module and the second parking control module are communicated with each other; the two parking systems are mutually backup, when one of the P-gear button module or the parking switch fails, the other one can still trigger the whole electronic parking system to work, so that the vehicle can park, and the safety performance of the vehicle is guaranteed.
Description
Technical Field
The utility model relates to a vehicle parking technical field especially relates to an electron parking system.
Background
In a traditional vehicle, a P gear locking mechanism (the structure can ensure that a driver locks a gearbox when the driver is in a P gear, so that parking is realized) and a parking system are usually arranged, the parking of the vehicle is realized through the two systems, however, on the basis of the consideration of the arrangement and cost of the whole vehicle, the P gear locking mechanism is cancelled in many new energy vehicles at present, so that the whole vehicle is left with one parking system, so that the parking can be realized, the requirement of 4.2.19.2 in the regulation GB21670 cannot be met, and once the parking system fails, the vehicle cannot be parked, so that potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide an electronic parking system for solving the problem that a vehicle in the conventional technology has only one parking system and cannot be parked once the parking system fails.
An electronic parking system, comprising: the parking control system comprises a first set of parking control system and a second set of parking control system which are arranged independently;
the first set of parking control system comprises a parking switch, a first parking control module and a first parking actuator which are sequentially connected, wherein the first parking control module is used for receiving a signal of the parking switch and controlling the first parking actuator to act;
the second set of parking control system comprises a P gear button module, a second parking control module and a second parking actuator which are sequentially connected, wherein the second parking control module is used for receiving a signal of the P gear button module and controlling the second parking actuator to act;
the first parking control module and the second parking control module are communicated, when the parking switch fails, the second parking control module sends a control signal to the first parking control module according to a signal of the P-gear button module, so that the first parking control module controls the first parking actuator to act; when the P gear button module fails, the first parking control module sends a control signal to the second parking control module according to a signal of the parking switch, so that the second parking control module controls the second parking actuator to act.
The electronic parking control system adopts two parking systems, the first parking control system comprises a first parking control module and is used for controlling the first parking actuator, and the second parking control system comprises a second parking control module and is used for controlling the second parking actuator. The first parking control module and the second parking control module are mutually backup, when one parking control module fails, the other parking control module can still ensure the parking capacity of the vehicle, the potential safety hazard of an original vehicle electronic parking system is eliminated, and the vehicle meets the requirements of regulations.
In one embodiment, the first parking control module comprises a parking switch signal processing unit, a first processor and a first motor control unit which are connected in sequence, wherein the parking switch signal processing unit is connected with the parking switch, and the first motor control unit is connected with the first parking actuator;
the second parking control module comprises a P gear key signal processing unit, a second processor and a second motor control unit which are sequentially connected, wherein the P gear key signal processing unit is connected with the P gear key module, the second motor control unit is connected with the second parking actuator, and the first processor is communicated with the second processor.
In one embodiment, the electronic parking system further comprises a vehicle CAN bus respectively connected with the first processor and the second processor;
the P-gear key module comprises a P-gear key and a gear controller, the P-gear key is connected with the P-gear key signal processing unit, and the gear controller is connected with the vehicle CAN bus and used for sending vehicle gear information to the vehicle CAN bus so that the first processor and the second processor receive the vehicle gear information through the vehicle CAN bus;
when the P-gear key fails or the P-gear key is disconnected with the P-gear key signal processing unit, the gear controller sends vehicle gear information to the vehicle CAN bus so that the first processor and the second processor receive the vehicle gear information through the vehicle CAN bus to control the vehicle to park or release the parking;
and when the gear controller fails, the second processor receives parking information of the P-gear button and sends the parking information to the first processor through communication so as to control the vehicle to park or release parking.
In one embodiment, the electronic parking system further comprises an ignition switch, the ignition switch is respectively connected with the first processor and the second processor, and the first processor and the second processor are used for receiving signals of the ignition switch and controlling the vehicle to perform parking.
In one embodiment, the second set of parking systems further comprises a rotational speed sensor;
the second parking control module comprises a rotating speed signal processing unit, one end of the rotating speed signal processing unit is connected with the rotating speed sensor, and the other end of the rotating speed signal processing unit is connected with the second processor and used for processing the received rotating speed signal and sending the rotating speed signal to the second processor;
when the CAN bus of the vehicle fails, the rotating speed sensor sends vehicle speed information to the second processor, and the second processor sends the vehicle speed information to the first processor so as to judge whether the vehicle is in a motion state or not, so that the vehicle CAN be used as a judgment condition for judging whether the vehicle CAN directly execute parking or release parking.
In one embodiment, the first processor and the second processor communicate via an internal CAN line and a serial bus, the internal CAN line and the serial bus being backup to each other.
In one embodiment, the electronic parking system further comprises an on-board power supply;
the first parking control module further comprises a first power supply unit, and the vehicle-mounted power supply is respectively connected with the first power supply unit and the first motor control unit;
the second parking control module further comprises a second power supply unit, and the vehicle-mounted power supply is respectively connected with the second power supply unit and the second motor control unit.
In one embodiment, the first parking control module further comprises a first storage unit electrically connected with the first processor, and the first power supply unit supplies power to the first processor and the first storage unit;
the second parking control module further comprises a second storage unit, the second storage unit is electrically connected with the second processor, and the second power supply unit supplies power to the second processor and the second storage unit.
Drawings
FIG. 1 is a block diagram of an electronic parking system provided in an embodiment of the present application;
FIG. 2 is a block diagram of an electronic parking system provided in accordance with another embodiment of the present application;
fig. 3 is a schematic diagram of an electronic parking system module according to another embodiment of the present application.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present 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 as used herein are for illustrative purposes only and do not represent the only embodiments.
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 in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1, an embodiment of the present application provides an electronic parking system including a first parking control system S1 and a second parking control system S2 that are independent of each other.
The first parking control system S1 includes a parking switch 10, a first parking control module 11, and a first parking actuator 12 connected in sequence. The first parking control module 11 is configured to receive a signal from the parking switch 10 and control the first parking actuator 12 to actuate.
The second set of parking system S2 includes a P-range key module 20, a second parking control module 21 and a second parking actuator 22 connected in sequence. The second parking control module 21 is used for receiving the signal of the P-gear button module and controlling the second parking actuator 22 to act.
The first parking control module 11 and the second parking control module 21 are also communicated with each other, when the parking switch 10 fails or the connection between the parking switch 10 and the first parking control module 11 fails, the second parking control module 21 may control the second parking brake 22 to operate according to the signal of the P-range key module 20, and meanwhile, the second parking control module 21 may send a control signal to the first parking control module 11 according to the signal of the P-range key module 20, so that the first parking control module 11 controls the first parking actuator 12 to execute parking or release parking. When the P-range key module 20 fails or the connection between the P-range key module 20 and the second parking control module 21 fails, the first parking control module 11 controls the first parking brake 12 to operate according to the signal of the parking switch 10, and meanwhile, the first parking control module 11 may send a control signal to the second parking control module 21 according to the signal of the parking switch 10, so that the second parking control module 21 controls the second parking actuator 22 to perform parking or release parking.
The above embodiment employs two parking systems, the first parking control system S1 includes a first parking control module 11 for controlling the first parking actuator 12, and the second parking control system S2 includes a second parking control module 21 for controlling the second parking actuator 22. The first parking control module 11 and the second parking control module 21 are mutually backup, when one parking control module fails, the other parking control module can still ensure the parking capacity of the vehicle, the potential safety hazard of an original vehicle electronic parking system is eliminated, and the vehicle meets the requirements of regulations.
Referring to fig. 2, in one embodiment, the first parking control module 11 includes a parking switch signal processing unit 111, a first processor 112, and a first motor control unit 113, which are connected in sequence. The parking switch signal processing unit 111 is connected to the parking switch 10, and the first motor control unit 113 is connected to the first parking actuator 12. The second parking control module 21 includes a P-range key signal processing unit 211, a second processor 212, and a second motor control unit 213, which are connected in sequence. The P-range key signal processing unit 211 is connected to the P-range key module 20, and the second motor control unit 213 is connected to the second parking actuator 22.
Specifically, the parking switch 10 is electrically connected to the parking switch signal processing unit 111, and the parking switch signal processing unit 111 processes the received state of the parking switch 10 and transmits the processed information to the first processor 20. If the parking switch 10 fails or the line between the parking switch 10 and the parking switch signal processing unit 111 fails, the first set of parking control system S1 will not respond to the control command from the activation source parking switch 10. However, the second parking control system S2 is not affected by the parking switch 10, the second parking system S2 can still control the second parking actuator 22 to operate, and meanwhile, the second parking system S2 communicates with the first parking control system S1, so that the first parking control system S1 and the second parking system S2 can still control the parking and release the parking of the vehicle.
The P-range key module 20 includes a P-range key 201 and a range controller 202. The P-range key 201 is electrically connected to the range controller 202 and the P-range key signal processing unit 211, respectively. The electronic parking system further includes a vehicle CAN (Controller area network) bus 30, and the gear Controller 202 is connected to the vehicle CAN bus 30 and configured to send vehicle gear information to the vehicle CAN bus 30. The vehicle CAN bus 30 is respectively connected with the first set of parking control system S1 and the second set of parking control system S2, and is used for sending the gear information of the vehicle to the first set of parking control system S1 and the second set of parking control system S2. Further, the vehicle CAN bus 30 and the P-range button 201 are backup for each other.
The P-gear button 201 belongs to a mechanical button of a vehicle gear shifting mechanism, when a driver presses the P-gear button 201, the gear controller 202 sends P-gear information to the vehicle CAN bus 30, and meanwhile, the gear controller 202 and the second processor 212 detect the change of an electric signal through hard wire connection to obtain a current P-gear engaging instruction. That is, the gear information on the vehicle CAN bus 30 and the electrical signal on the line are mutually backed up, so that the parking CAN be realized by engaging the P gear. If the P-range key 201 fails or the line between the P-range key 41 and the P-range key signal processing unit 51 fails, the second processor 212 cannot respond to the control command from the trigger source P-range key 41. The first processor 112 and the second processor 212 may still achieve vehicle parking and de-parking by receiving gear signals on the vehicle CAN bus 30. If the gear controller 202 fails, the first processor 112 and the second processor 212 cannot receive the gear information on the vehicle CAN bus 30, and at this time, the second processor may receive the parking signal from the P-range button 201 and send the parking information to the first processor 112 through the internal CAN line, so that the first processor 112 controls the first parking actuator 12 to operate, and the driver may still realize parking by pressing the P-range button 201.
Further, the electronic parking system further includes an ignition switch 40, and the ignition switch 40 is respectively connected to the first processor 112 and the second processor 212. The first processor 112 and the second processor 212 acquire whether the vehicle is in a flameout state, and if the vehicle is in the flameout state, the first processor 112 and the second processor 212 control the vehicle to park.
In one embodiment, the second set of parking control systems S2 further includes a speed sensor 50. The second parking control module 21 comprises a rotational speed signal processing unit 214, a second processor 212 connected to the rotational speed sensor 50 at one end and to the other end.
The rotation speed sensor 50 is electrically connected to the rotation speed signal processing unit 214, and the rotation speed signal processing unit 214 processes the received vehicle rotation speed signal and transmits the processed information to the second processor 212. The speed sensor 50 CAN provide reliable vehicle speed information to the second processor 212 when the vehicle CAN bus 30 fails. Meanwhile, the second processor 212 transmits the vehicle speed information to the first processor 112 through the internal CAN line, so that the first processor 112 obtains reliable vehicle speed information, and thus the second processor 212 and the first processor 112 control the vehicle to perform parking or release parking CAN determine whether the vehicle is in a moving state as a determination condition whether the vehicle CAN directly perform parking or release parking.
In one embodiment, the electronic parking system further includes an onboard power source 60 for providing power to the first set of parking control systems S1 and the second set of parking control systems S2.
The first parking control module 11 further comprises a first power supply unit 114 and a first memory 115. The in-vehicle power supply 40 is electrically connected to the first power supply unit 114 and the first motor control unit 113, respectively, and supplies power to the first power supply unit 114 and the first motor control unit 113. The first power supply unit 114 is connected to the first processor 112 and the first memory 115, and is configured to supply power to the first processor 112 and the first memory 115. The first memory 115 is used for storing the operation information of the first parking control module 11 and interacting with the first processor 112.
The second parking control module 21 further comprises a second power supply unit 215 and a second memory 216. The in-vehicle power supply 40 is electrically connected to the second power supply unit 215 and the second motor control unit 213, respectively, and supplies power to the second power supply unit 215 and the second motor control unit 213. The second power supply unit 213 is connected to the second processor 212 and the second memory 216, and is used for supplying power to the second processor 212 and the second memory 216. The second memory 216 is used for storing the operation information of the second parking control module 21 and performing information interaction with the second processor 212.
In the above embodiment, the first parking actuator 12 and the second parking actuator 22 may be mounted to the left and right rear wheels of the vehicle, respectively. Similarly, the first parking control module 11 may be a left-side parking control module for controlling a parking actuator mounted to a left rear wheel, and the second parking control module 21 may be a right-side parking control module for controlling a parking actuator mounted to a right rear wheel. Of course, the opposite is also possible. The first parking control module 11 and the second parking control module 21 are two independent electronic controllers, and each work unit is integrated in the electronic controllers.
In another embodiment, as shown in fig. 3, the first parking module 11 and the second parking module 21 may also be functional modules in two electronic controllers, respectively, and each working unit is integrated in the functional modules. The electronic controller 1 and the electronic controller 2 are two completely independent electronic controllers, and the electronic controller 1 can integrate the functions of the first parking module 11 and control the first parking actuator 12 to work; electronic controller 2 may integrate the functionality of second parking module 12 to control the operation of second parking actuator 22. The parking modules integrated by the electronic controller 1 and the electronic controller 2 can be exchanged according to the layout requirement of the whole vehicle, namely the electronic controller 1 can also be integrated with the second parking module 21, and the electronic controller 2 can also be integrated with the first parking module 11.
The electronic parking system comprises a first set of electronic parking system S1 and a second set of electronic parking system S2, wherein the two sets of electronic parking systems are mutually backup. The first set of electronic parking system S1 includes a trigger source parking switch 10, the second set of electronic parking system S2 includes a trigger source P-range module, and the first set of electronic parking system S1 and the second set of electronic parking system S2 include two trigger sources independent from each other, so that even if one of the trigger sources fails, the two parking control modules can still work normally due to the communication between the first parking control module 11 and the second parking control module 21. The first triggering sources of the first parking control module 10 include an ignition switch 40, a parking switch 10, a vehicle CAN bus 30 and a second processor 212, and four first triggering sources CAN trigger the first control module 11 to control the first parking actuator 12 to execute parking or release parking, and when one or more of the first triggering sources are failed, the other triggering sources CAN still trigger the first parking control module 11 to control the vehicle to execute parking or release parking. The second triggering source of the second parking control module 21 includes an ignition switch 40, a vehicle CAN bus 30, a P-range key 201, and a first processor 112. The four second trigger sources may trigger the second control module 21 to control the second parking actuator 22 to perform parking or release parking, and when one or more of the second trigger sources fails, the other trigger sources may still trigger the second parking control module 21 to control the vehicle to perform parking or release parking.
An embodiment of the present application further provides a control method of an electronic parking system, where after the electronic parking system is powered on, a first parking control module first detects whether an input signal of a first trigger source is received. The first trigger source comprises an ignition switch, a vehicle CAN bus, an electronic parking switch and a second processor.
When the first trigger source is an ignition switch, the first parking control module sends a clamping instruction to the second parking control module after receiving an input signal of the ignition switch. In this embodiment, the first parking module sends the clamping command at most N times, where N is a positive integer greater than or equal to 2, and may be 3, for example. If the first parking control module receives the response information of the second parking control module, the second parking control module can work normally, the first parking control module and the second parking control module respectively control the first parking actuator and the second parking actuator to execute parking, and then the first parking control module and the second parking control module enter a standby state. If the sent N times of clamping instructions do not receive the response information of the second parking control module, the fact that the second parking control module or the second parking actuator is possibly damaged is indicated, the first parking control module controls the first parking actuator to park, meanwhile, an alarm is sent to remind a user, and then the user enters a standby state.
When the first trigger source is an electronic parking switch or a vehicle CAN bus, similarly, the first parking control module judges the type of a received instruction after receiving an input signal of the parking switch or the vehicle CAN bus, wherein the type of the instruction comprises a clamping instruction and a releasing instruction. And when the first parking control module executes a clamping instruction, the first parking actuator is controlled to execute parking, and when the first parking control module executes a releasing instruction, the first parking actuator is controlled to release parking. The first parking control module sends a clamping instruction or a releasing instruction to the second parking control module at most N times according to the type of the received instruction, and if the first parking control module receives feedback information of the second parking control module, the first parking control module and the second parking control module control the first parking actuator and the second parking actuator to execute parking or release parking. If the first parking control module still does not receive the response information of the second parking control module after N times and the second parking control module or the second parking actuator is possibly damaged, the first parking control module controls the first parking actuator to park or release parking, meanwhile, an alarm is sent to remind a user, and then the first parking control module enters a standby state.
When the first trigger source is the second processor, the second parking control module is indicated to receive the input signal of the second trigger source firstly, and the first parking control module is triggered. The first parking control module may directly execute the command transmitted from the second parking control module. And if the first parking control module fails to execute the sending fault, the first parking control module gives an alarm.
In another embodiment, if the second parking control module is first contacted with the signal of the second trigger source, the second parking control module is started first, and then the first parking control module is triggered to act. Therefore, another embodiment of the present application provides a control method of an electronic parking system, in which if a second parking control module receives a signal of a second trigger source, the second parking control module is activated. The second trigger source comprises an ignition switch, a vehicle CAN bus, a P-gear key and a first processor.
When the second trigger source is an ignition switch or a P-gear button, the second parking control module sends a clamping instruction to the first parking control module. In this embodiment, the second parking control module sends the clamping command to the first parking control module at most N times. Where N is a positive integer greater than or equal to 2, for example N may be 3. And if the second parking control module receives the response information of the first parking control module and indicates that the first parking control module can work normally, the first parking control module and the second parking control module respectively control the first parking actuator and the second parking actuator to execute parking, and then the parking control module enters a standby state. If the sent N times of clamping instructions do not receive the response information of the first parking control module, the fact that the first parking control module or the first parking actuator is possibly damaged is indicated, the second parking control module controls the second parking actuator to park, meanwhile, an alarm is sent to remind a user, and then the user enters a standby state.
When the second trigger source is a vehicle CAN bus, similarly, the second parking control module judges the type of the received command after receiving an input signal of the vehicle CAN bus, wherein the command type comprises a clamping command and a releasing command. And when the second parking control module executes a clamping instruction, the second parking actuator is controlled to execute parking, and when the second parking control module executes a releasing instruction, the second parking actuator is controlled to release parking. And the second parking control module sends a clamping instruction or a releasing instruction to the first parking control module at most N times according to the type of the received instruction, and if the second parking control module receives the feedback information of the first parking control module, the first parking control module and the second parking control module control the first parking actuator and the second parking actuator to execute parking or release parking. If the second parking control module still does not receive the response information of the first parking control module after N times and the first parking control module or the first parking actuator is possibly damaged, the second parking control module controls the second parking actuator to park or release parking, meanwhile, an alarm is sent to remind a user, and then the second parking control module enters a standby state.
When the second trigger source is the first processor, the first parking control module is indicated to receive the input signal of the first trigger source firstly, and the second parking control module is triggered. The second parking control module may directly execute the command transmitted from the first parking control module. And if the second parking control module fails and cannot be executed, the second parking control module gives an alarm.
In the above embodiment, the first parking controller and the second parking controller are also backed up, and since the two parking controllers are respectively connected to the two independent parking control modules, when one parking module or the parking controller is damaged, the other parking controller and the parking module are not affected and can still work normally. And the first parking control module comprises a plurality of mutually independent trigger sources, and when one trigger source fails, other trigger sources can still trigger the first parking control module to work. The second parking control module also comprises a plurality of mutually independent trigger sources, when one trigger source fails, other trigger sources can still trigger the second parking control module to work, and parking safety is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. An electronic parking system, comprising: the parking control system comprises a first set of parking control system and a second set of parking control system which are arranged independently;
the first set of parking control system comprises a parking switch, a first parking control module and a first parking actuator which are sequentially connected, wherein the first parking control module is used for receiving a signal of the parking switch and controlling the first parking actuator to act;
the second set of parking control system comprises a P gear button module, a second parking control module and a second parking actuator which are sequentially connected, wherein the second parking control module is used for receiving a signal of the P gear button module and controlling the second parking actuator to act;
the first parking control module and the second parking control module are communicated, when the parking switch fails, the second parking control module sends a control signal to the first parking control module according to a signal of the P-gear button module, so that the first parking control module controls the first parking actuator to act; when the P gear button module fails, the first parking control module sends a control signal to the second parking control module according to a signal of the parking switch, so that the second parking control module controls the second parking actuator to act.
2. The electronic parking system according to claim 1, wherein the first parking control module comprises a parking switch signal processing unit, a first processor and a first motor control unit which are connected in sequence, wherein the parking switch signal processing unit is connected with the parking switch, and the first motor control unit is connected with the first parking actuator;
the second parking control module comprises a P gear key signal processing unit, a second processor and a second motor control unit which are sequentially connected, wherein the P gear key signal processing unit is connected with the P gear key module, the second motor control unit is connected with the second parking actuator, and the first processor is communicated with the second processor.
3. The electronic parking system of claim 2 further comprising a vehicle CAN bus connecting the first processor and the second processor, respectively;
the P-gear key module comprises a P-gear key and a gear controller, the P-gear key is connected with the P-gear key signal processing unit, and the gear controller is connected with the vehicle CAN bus and used for sending vehicle gear information to the vehicle CAN bus so that the first processor and the second processor receive the vehicle gear information through the vehicle CAN bus;
when the P-gear key fails or the P-gear key is disconnected with the P-gear key signal processing unit, the gear controller sends vehicle gear information to the vehicle CAN bus so that the first processor and the second processor receive the vehicle gear information through the vehicle CAN bus to control the vehicle to park or release the parking;
and when the gear controller fails, the second processor receives parking information of the P-gear button and sends the parking information to the first processor through communication so as to control the vehicle to park or release parking.
4. The electronic parking system of claim 3 further comprising an ignition switch connected to the first processor and the second processor, respectively, the first processor and the second processor being configured to receive signals from the ignition switch and control the vehicle to park.
5. The electronic parking system of claim 4 wherein the second set of parking systems further comprises a rotational speed sensor;
the second parking control module comprises a rotating speed signal processing unit, one end of the rotating speed signal processing unit is connected with the rotating speed sensor, and the other end of the rotating speed signal processing unit is connected with the second processor and used for processing the received rotating speed signal and sending the rotating speed signal to the second processor;
when the CAN bus of the vehicle fails, the rotating speed sensor sends vehicle speed information to the second processor, and the second processor sends the vehicle speed information to the first processor so as to judge whether the vehicle is in a motion state or not, so that the vehicle CAN be used as a judgment condition for judging whether the vehicle CAN directly execute parking or release parking.
6. The electronic parking system of claim 5 wherein the first processor and the second processor communicate over an internal CAN line and a serial bus, the internal CAN line and the serial bus being backup to each other.
7. The electronic parking system of claim 6 further comprising an onboard power source;
the first parking control module further comprises a first power supply unit, and the vehicle-mounted power supply is respectively connected with the first power supply unit and the first motor control unit;
the second parking control module further comprises a second power supply unit, and the vehicle-mounted power supply is respectively connected with the second power supply unit and the second motor control unit.
8. The electronic parking system of claim 7, wherein the first parking control module further comprises a first storage unit electrically connected with the first processor, the first power supply unit supplying power to the first processor and the first storage unit;
the second parking control module further comprises a second storage unit, the second storage unit is electrically connected with the second processor, and the second power supply unit supplies power to the second processor and the second storage unit.
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| CN201921395226.0U CN210502649U (en) | 2019-08-26 | 2019-08-26 | Electronic parking system |
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| CN201921395226.0U CN210502649U (en) | 2019-08-26 | 2019-08-26 | Electronic parking system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112124266A (en) * | 2020-09-16 | 2020-12-25 | 广州汽车集团股份有限公司 | Parking control method, parking control device and storage medium |
| CN114056304A (en) * | 2020-07-30 | 2022-02-18 | 北京新能源汽车股份有限公司 | Electronic parking braking system and automobile |
| 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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2019
- 2019-08-26 CN CN201921395226.0U patent/CN210502649U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114056304A (en) * | 2020-07-30 | 2022-02-18 | 北京新能源汽车股份有限公司 | Electronic parking braking system and automobile |
| CN112124266A (en) * | 2020-09-16 | 2020-12-25 | 广州汽车集团股份有限公司 | Parking control method, parking control device and storage medium |
| 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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