CN217374468U - Safety redundancy system of electronic booster - Google Patents
Safety redundancy system of electronic booster Download PDFInfo
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- CN217374468U CN217374468U CN202220674840.6U CN202220674840U CN217374468U CN 217374468 U CN217374468 U CN 217374468U CN 202220674840 U CN202220674840 U CN 202220674840U CN 217374468 U CN217374468 U CN 217374468U
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Abstract
The utility model relates to a vehicle control technical field especially relates to redundant system of electron booster safety, including electron booster, EHPS or EPS, redundant backup motor drive hydraulic pump and the redundant hydraulic pressure pipeline intercommunication of electron booster, install first solenoid valve on the redundant hydraulic pressure pipeline of electron booster, drive mechanism realizes hydraulic power steering or is direct to be connected with the EPS motor and realizes electronic power steering through installing EHPS hydraulic pump on hydraulic power steering pipeline and through EHPS motor drive, redundant backup motor is connected with the electron booster motor as the redundant stand-by motor of electron booster, redundant backup motor is connected with drive mechanism as the redundant stand-by motor of EHPS motor or EPS motor. The system provided by the utility model simple structure, it is with low costs, and occupation space is little, practicality and security are stronger.
Description
Technical Field
The utility model relates to a vehicle control technical field especially relates to redundant system of electron booster safety.
Background
The electronic booster is a key safety component in an automobile chassis domain, how to enhance the brake safety is always the key point of automobile parts, and schemes such as vacuum booster + ABS, vacuum booster + ESP, electronic booster + ABS/ESP and the like appear in sequence. How to balance the cost and the safety is the research and development difficulty of the electronic power-assisted brake.
The EHPS is traditional mechanical hydraulic power assistance and is driven by a motor, the EPS is an electric power steering system, and the EPS is a steering power assistance torque with corresponding magnitude and direction which is output by the motor through a command sent by a motor controller so as to generate auxiliary power. However, if the EHPS motor or the EPS motor is provided with a redundant backup motor, and the electronic booster is provided with a redundant backup motor, the cost is high, and the safety redundancy of the EHPS or the EPS motor is difficult to realize due to the large spatial limitation of the electronic booster.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a simple structure is provided, and is with low costs, and occupation space is little, and practicality, security are than stronger electron booster safety redundancy system.
The utility model discloses a realize through following technical scheme:
the electronic booster safety redundant system comprises an electronic booster, an EHPS or an EPS, wherein the electronic booster is provided with an electronic booster redundant hydraulic pipeline, a redundant backup motor drives a hydraulic pump to be communicated with the electronic booster redundant hydraulic pipeline, a first electromagnetic valve is arranged on the electronic booster redundant hydraulic pipeline, a transmission mechanism is used for realizing hydraulic power-assisted steering by arranging the EHPS hydraulic pump on a hydraulic power-assisted steering pipeline and driving the hydraulic power-assisted steering through an EHPS motor or directly connecting the hydraulic power-assisted steering with the EPS motor to realize electric power-assisted steering, the redundant backup motor is used as an electronic booster redundant backup motor and is connected with the electronic booster motor through a CAN, the electronic booster motor is provided with an electronic booster motor fault monitoring module, the EHPS motor or the EPS motor is connected with the redundant backup motor through the CAN, the EHPS motor or the EPS motor is provided with the EHPS motor fault monitoring module or the EPS motor fault monitoring module, the redundant backup motor is used as a redundant backup motor of the EHPS motor or the EPS motor and is connected with the transmission mechanism.
Furthermore, the transmission mechanism is provided with a safe redundant hydraulic pipeline which is connected with the hydraulic power-assisted steering pipeline in parallel, a redundant backup hydraulic pump is installed on the safe redundant hydraulic pipeline, and the redundant backup hydraulic pump is driven by a redundant backup motor.
And optimally, a second electromagnetic valve is arranged on the safe redundant hydraulic pipeline.
Further, a redundant backup motor and an EHPS motor are connected in series on a safe redundant hydraulic pipeline, and a first detachable structure is arranged between the redundant backup motor and the EHPS motor and connected with the EHPS hydraulic pump.
Further, the redundant backup motor and the EPS motor are connected in parallel to drive the transmission mechanism, and a first disengageable structure is installed between the redundant backup motor and the transmission mechanism.
Further, a redundant backup motor and the EPS motor are connected in series to drive the transmission mechanism, and a first detachable structure is installed between the redundant backup motor and the EPS motor.
Further, a pump is shared between the redundant backup motor and the electric booster motor and is connected by a second disengageable structure.
Preferably, the first disengageable structure and the second disengageable structure are both electromagnetic clutches.
Beneficial effects of the utility model
The utility model discloses the redundant system of electronic booster safety of protection has following advantage: through letting redundant backup motor both regard as electronic booster's backup motor, regard as EHPS or EPS's backup motor again, both reduced braking system's cost, also compromise braking system's security performance, it is simple structure not only, with low costs, occupation space is little, and practicality, security are stronger.
Drawings
FIG. 1 is a schematic diagram of an electronic booster and EHPS safety redundancy system according to the present invention;
FIG. 2 is a schematic structural view of an electronic booster and an EPS safety redundancy system according to the present invention;
FIG. 3 is a second schematic structural view of an electronic booster and an EHPS safety redundancy system according to the present invention;
FIG. 4 is a second schematic view of the electronic booster and EPS safety redundancy system of the present invention;
FIG. 5 is a block diagram of an electronic booster and EHPS safety redundant control system;
FIG. 6 is a block diagram of an electronic booster and EPS safety redundant control system;
in the figure, 1, an electronic booster, 2, a first electromagnetic valve, 3, a second detachable structure, 4, a redundant backup motor, 5, an EHPS motor, 6, a first detachable structure, 7, a transmission mechanism, 8, an EHPS hydraulic pump, 9, a redundant hydraulic pipeline of the electronic booster, 10, an EPS motor, 11, a second electromagnetic valve and 12, a redundant backup hydraulic pump are arranged.
Detailed Description
The electronic booster safety redundant system comprises an electronic booster 1, an EHPS or an EPS, wherein the electronic booster is provided with an electronic booster redundant hydraulic pipeline, a redundant backup motor 4 drives a hydraulic pump (not shown) to be communicated with an electronic booster redundant hydraulic pipeline 9, a first electromagnetic valve 2 is arranged on the electronic booster redundant hydraulic pipeline, a transmission mechanism 7 realizes hydraulic power-assisted steering by arranging an EHPS hydraulic pump 8 on the hydraulic power-assisted steering pipeline and driving the hydraulic power-assisted steering through an EHPS motor 5 or directly connecting the electronic booster hydraulic pump with an EPS motor 10 to realize electric power-assisted steering, the redundant backup motor is used as an electronic booster redundant backup motor and is connected with the electronic booster motor through a CAN, the electronic booster motor is provided with an electronic booster motor fault monitoring module, the EHPS motor or the EPS motor is connected with the redundant backup motor through the CAN, the EHPS motor or the EPS motor is provided with the EHPS motor fault monitoring module or the EPS motor fault monitoring module, the redundant backup motor is used as a redundant backup motor of the EHPS motor or the EPS motor and is connected with the transmission mechanism.
The electronic booster fault diagnosis module comprises a plurality of monitoring modes such as electronic booster motor rotating speed monitoring, temperature monitoring and the like, the rotating speed, the temperature and the like of the motor of the electronic booster can be monitored in real time through various corresponding sensors, and transmits the information to the electronic booster control system, the electronic booster control system receives the monitoring information, and comparing the monitored information with the preset information, when the monitored information exceeds the corresponding preset range, then judge electron booster motor trouble, electron booster control system breaks off the electron booster motor and transmits fault information for safe redundant control system through CAN communication line, safe redundant control system then controls the work of redundant backup motor, the redundant hydraulic line of electron booster switches on with electron booster, replaces electron booster motor work, realizes electron booster's safe redundancy.
The EHPS fault diagnosis module or the EPS fault diagnosis module comprises an EHPS motor or an EPS motor, a temperature monitoring and other multiple monitors, the rotating speed, the temperature and the like of the EHPS motor or the EPS motor can be monitored in real time through various corresponding sensors, information is transmitted to the EHPS control system or the EPS control system, the EHPS control system or the EPS control system receives monitoring information and compares the monitoring information with preset information, when the monitored information exceeds a corresponding preset range, the EHPS motor or the EPS motor is judged to be in fault, the EHPS control system or the EPS control system controls the EHPS motor or the EPS motor to stop working and transmits the information to the safety redundancy control system, and the safety redundancy control system connects a redundancy backup motor with a transmission mechanism to replace the EHPS motor or the EPS motor to work, so that the safety redundancy of the EHPS motor or the EPS motor is realized.
The redundant backup motor is arranged, not only is used as the backup motor of the electronic booster, but also is used as the backup motor of the EHPS or the EPS, the cost of the brake system is reduced, and the safety performance of the brake system is also considered.
Further, the transmission mechanism is provided with a safe redundant hydraulic pipeline which is connected with the hydraulic power-assisted steering pipeline in parallel, a redundant backup hydraulic pump 12 is installed on the safe redundant hydraulic pipeline, and the redundant backup hydraulic pump is driven by a redundant backup motor. When the redundant backup motor is applied to an EHPS system, a set of safe redundant hydraulic pipelines can be arranged in parallel, when the EHPS motor works normally, the safe redundant hydraulic pipelines are in a disconnected state, and the EHPS motor drives an EHPS hydraulic pump to realize hydraulic power-assisted steering of the transmission mechanism. When the EHPS motor is abnormal, the safe redundant hydraulic pipeline is switched on, and the redundant backup hydraulic pump on the safe redundant hydraulic pipeline is driven by the redundant backup motor to realize the power-assisted steering of the transmission mechanism.
Preferably, a second electromagnetic valve 11 is arranged on the safety redundant hydraulic pipeline. The second electromagnetic valve can conveniently control the quick connection and disconnection of the safety redundant hydraulic pipeline.
Further, a redundant backup motor and an EHPS motor are connected in series on a safe redundant hydraulic pipeline, and a first detachable structure 6 is arranged between the redundant backup motor and the EHPS motor and is connected with the EHPS hydraulic pump. The structure can be further simplified, a safe redundant hydraulic pipeline is not required to be connected in parallel, the redundant backup motor and the EHPS motor are connected in a switching mode only by arranging a first detachable structure, and the safe redundancy of the hydraulic power-assisted steering of the transmission mechanism can be realized.
Further, the redundant backup motor and the EPS motor are connected in parallel to drive the transmission mechanism, and a first disengageable structure 6 is installed between the redundant backup motor and the transmission mechanism. When the EPS motor normally works, the redundant backup motor and the transmission device are in a disconnected state, and the EPS motor drives the transmission mechanism to realize electronic power-assisted steering. When the EPS motor is abnormal, the redundant backup motor is communicated with the transmission mechanism, the transmission mechanism is driven by the redundant backup motor, electronic power-assisted steering is realized, and conversion is convenient and rapid.
Further, a redundant backup motor and an EPS motor are connected in series to drive the transmission mechanism, and a first disengageable structure 6 is installed between the redundant backup motor and the EPS motor. By means of the structure, conversion between the redundant backup motor and the EPS motor can be achieved, the structure is simpler, and space is saved.
Further, a pump is shared between the redundant backup motor and the electric booster motor and is connected through a second disengageable structure 3.
Preferably, the first disengageable structure and the second disengageable structure are both electromagnetic clutches. The electromagnetic clutch can realize that the actuation action is carried out under the condition of high-speed rotation, and is suitable for dry-type oilless occasions to use, and the practicality is stronger.
The motor shaft of the redundant backup motor can be a double output shaft, one output shaft is connected with the electronic booster system, and the other output shaft is applied to the EHPS or EPS system and is connected with the transmission mechanism.
Meanwhile, when the electronic booster motor and the EHPS motor or the EPS motor fail simultaneously, the redundant backup motor is preferentially connected with the electronic booster to replace the electronic booster motor to work, so that the normal work of a vehicle braking system is ensured, the safety performance of the braking system is ensured, the running safety of the vehicle is improved, and the redundant backup motor can be applied to future unmanned vehicles and is safer and more reliable.
The utility model discloses a redundant system of electronic booster safety, redundant backup motor both had been regarded as electronic booster's backup motor, had both reduced braking system's cost as EHPS or EPS's backup motor again, had also compromise braking system's security performance, and its structure is fairly simple, and occupation space is little, and the practicality is stronger.
Note: EPS denotes an electric power steering system; EHPS denotes an electronically controlled hydraulic power steering system.
To sum up, the utility model discloses the redundant system of electron booster safety, simple structure, it is with low costs, and occupation space is little, practicality and security are stronger.
Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The electronic booster safety redundant system is characterized by comprising an electronic booster, an EHPS (electric power steering) or an EPS (electric power steering), wherein the electronic booster is provided with an electronic booster redundant hydraulic pipeline, a redundant backup motor drives a hydraulic pump to be communicated with the electronic booster redundant hydraulic pipeline, a first electromagnetic valve is arranged on the electronic booster redundant hydraulic pipeline, a transmission mechanism is used for realizing hydraulic power steering through the installation of the EHPS hydraulic pump on a hydraulic power steering pipeline and the hydraulic power steering through the drive of an EHPS motor or directly connecting the EHPS hydraulic pump with the EPS motor to realize electric power steering, the redundant backup motor is used as an electronic booster redundant backup motor and is connected with the electronic booster motor through a CAN (controller area network), the electronic booster motor is provided with an electronic booster motor fault monitoring module, the EHPS motor or the EPS motor is connected with the redundant backup motor through the CAN, and the EHPS motor or the EPS motor is provided with the EHPS motor fault monitoring module or the EPS motor fault monitoring module, the redundant backup motor is used as a redundant backup motor of the EHPS motor or the EPS motor and is connected with the transmission mechanism.
2. An electronic booster safety redundant system as claimed in claim 1 wherein the transmission is provided with a safety redundant hydraulic line connected in parallel with the hydraulic power steering line, the safety redundant hydraulic line having a redundant backup hydraulic pump mounted thereon, the redundant backup hydraulic pump being driven by a redundant backup motor.
3. An electronic booster safety redundant system according to claim 2 wherein a second solenoid valve is mounted on the safety redundant hydraulic line.
4. An electronic booster safety redundant system according to claim 1 wherein a redundant backup motor and an EHPS motor are connected in series on a safety redundant hydraulic line, and a first disengageable structure is installed between the redundant backup motor and the EHPS motor to connect with an EHPS hydraulic pump.
5. An electronic booster safety redundant system according to claim 1 wherein a redundant backup motor drives the transmission in parallel with the EPS motor and a first disengageable structure is mounted between the redundant backup motor and the transmission.
6. An electronic booster safety redundant system according to claim 1 wherein a redundant backup motor drives the transmission in series with the EPS motor and a first disengagable structure is mounted between the redundant backup motor and the EPS motor.
7. An electronic booster safety redundancy system according to claim 1, wherein a pump is shared between the redundant back-up motor and the electronic booster motor and connected by a second releasable structure.
8. An electronic booster safety redundant system according to claim 4 or 5 or 6 or 7 wherein the first disengageable structure and the second disengageable structure are each an electromagnetic clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220674840.6U CN217374468U (en) | 2022-03-25 | 2022-03-25 | Safety redundancy system of electronic booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220674840.6U CN217374468U (en) | 2022-03-25 | 2022-03-25 | Safety redundancy system of electronic booster |
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| Publication Number | Publication Date |
|---|---|
| CN217374468U true CN217374468U (en) | 2022-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220674840.6U Active CN217374468U (en) | 2022-03-25 | 2022-03-25 | Safety redundancy system of electronic booster |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114559919A (en) * | 2022-03-25 | 2022-05-31 | 苏州海之博电子科技有限公司 | Electronic booster and EHPS or EPS safety redundant system |
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- 2022-03-25 CN CN202220674840.6U patent/CN217374468U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114559919A (en) * | 2022-03-25 | 2022-05-31 | 苏州海之博电子科技有限公司 | Electronic booster and EHPS or EPS safety redundant system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240221 Address after: No. 126, Suhong West Road, Suzhou Industrial Park, Jiangsu Province 215021 Patentee after: BOSCH AUTOMOTIVE PRODUCTS (SUZHOU) Co.,Ltd. Country or region after: China Address before: 215000 Room 301, 3rd floor, Xiangrong building, No. 55, nantiancheng Road, high speed rail new town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: Suzhou haizhibo Electronic Technology Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |