A power steering system controller and control method

Abstract

The application discloses a power-assisted steering system controller and a control method, the power-assisted steering system controller comprising a driving device and a control device; the control device comprising a connector and a signal processing device; the signal processing device comprising a first reinforcing layer, an intermediate layer and a second reinforcing layer; the connector and the signal processing device forming a flexible structure through a flexible connecting piece; the first reinforcing layer being provided with a power supply filtering circuit; the second reinforcing layer being provided with a power conversion circuit; the intermediate layer being provided with a control circuit; the connector being used for sending an initial power supply signal and steering information; the power supply filtering circuit being used for filtering and processing the initial power supply signal to obtain a filtered signal; the power conversion circuit being used for power conversion processing on the filtered signal to obtain a steering control signal; the signal processing device is provided with a flexible structure, multiple circuits are arranged according to different functional areas, the circuit design reliability is ensured, and meanwhile, the application scene of the power-assisted steering system controller can be expanded.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a power steering system controller and a control method. BACKGROUND

[0002] In a vehicle electronic power steering system, an electronic control assembly is a core part of a controller module. In the prior art, each control module and component of the electronic control assembly is usually arranged on a single non-flexible circuit board, which can cause the circuit board to be easily deformed and the power steering controller to be difficult to modularly designed.

[0003] In addition, some prior art solutions arrange each controller module and component on two or more non-flexible circuit boards, which can partially optimize the defects of a single non-flexible circuit board, but requires additional connection structures between the multiple non-flexible circuit boards, increasing the structural complexity of the electronic control assembly. SUMMARY

[0004] In view of the above-mentioned defects of the prior art, the technical problems to be solved by the present application are how to improve the structural stability of the internal circuit board of the power steering system controller and how to modularly design multiple control modules of the power steering controller.

[0005] In order to solve at least one of the above-mentioned technical problems, the present application discloses a power steering system controller and a control method.

[0006] According to an aspect of the present disclosure, a power steering system controller is provided, comprising:

[0007] a driving device and a control device; the driving device is used to drive a target vehicle to steer; the control device is used to control the driving device to operate;

[0008] the control device comprises a connector and a signal processing device; the signal processing device comprises a first reinforcing layer, an intermediate layer and a second reinforcing layer arranged in sequence; the connector and the signal processing device form a flexible structure through a flexible connecting piece;

[0009] the first reinforcing layer is provided with a power filter circuit; the second reinforcing layer is provided with a power conversion circuit; and the intermediate layer is provided with a control circuit;

[0010] the connector is used to send an initial power signal to the power filter circuit and send steering information corresponding to the initial power signal to the control circuit;

[0011] the power filter circuit is used to perform filtering processing on the initial power signal based on control information sent by the control circuit to obtain a filtered signal; and the control information is generated based on the steering information.

[0012] The power conversion circuit is configured to perform power conversion on the filtered signal based on the control information sent by the control circuit to obtain a steering control signal, and send the steering control signal to the driving device.

[0013] In some possible implementation manners, the power supply filtering circuit includes a first power supply filtering circuit and a second power supply filtering circuit; the power conversion circuit includes a first power conversion circuit and a second power conversion circuit; and the control circuit includes a first control circuit and a second control circuit.

[0014] The first power supply filtering circuit, the first power conversion circuit, and the first control circuit form a first signal processing circuit; and the second power supply filtering circuit, the second power conversion circuit, and the second control circuit form a second signal processing circuit.

[0015] The first signal processing circuit is configured to verify the steering control signal output by the second signal processing circuit; or the first signal processing circuit is configured to generate the steering control signal based on the initial power supply signal and the steering information when the second signal processing circuit fails.

[0016] In some possible implementation manners, the connector includes a first connector interface corresponding to the first power supply filtering circuit, and a second connector interface corresponding to the second power supply filtering circuit.

[0017] The connector further includes a third connector interface corresponding to the first control circuit, and a fourth connector interface corresponding to the second control circuit.

[0018] The first connector interface and the third connector interface form a first connector; and the second connector interface and the fourth connector interface form a second connector.

[0019] In some possible implementation manners, the power conversion circuit is provided with a connection port.

[0020] The power conversion circuit is connected to the driving device through the connection port.

[0021] In some possible implementation manners, the flexible connecting member is capable of being bent to achieve folding of the flexible structure inside the control device.

[0022] In some possible implementation manners, the control device is further provided with a heat dissipation support.

[0023] The flexible structure is folded through the flexible connecting member and arranged on the heat dissipation support.

[0024] In some possible implementation manners, the power-assisted steering system controller further comprises a driving device housing and a control device housing;

[0025] The control device housing is fixedly connected with the driving device housing;

[0026] The connection between the control device housing and the driving device housing is sealed by sealing glue.

[0027] According to a second aspect of the present disclosure, a control method of a power-assisted steering system is provided, and the method is characterized in that the method is implemented based on any one of the power-assisted steering system controllers as described above, and the method comprises the following steps:

[0028] receiving the steering information of the target vehicle and the initial power supply signal;

[0029] generating a steering control signal corresponding to the target vehicle based on the initial power supply signal, the steering information and the power-assisted steering system controller;

[0030] controlling the target vehicle to realize steering based on the steering control signal.

[0031] According to a third aspect of the present disclosure, a control device of a power-assisted steering system is provided, and the control device is characterized in that the control device comprises:

[0032] a signal receiving module, configured to receive the steering information of the target vehicle and the initial power supply signal;

[0033] a signal generating module, configured to generate a steering control signal corresponding to the target vehicle based on the initial power supply signal, the steering information and the power-assisted steering system controller;

[0034] a steering control module, configured to control the target vehicle to realize steering based on the steering control signal.

[0035] According to a fourth aspect of the present disclosure, a vehicle is provided, and the vehicle is provided with any one of the power-assisted steering system controllers as described above, and the vehicle can implement the power-assisted steering system control method as described above.

[0036] The present application has the following beneficial effects:

[0037] In the present application, the control device is provided with a single flexible circuit board, which can avoid deformation of the circuit board due to bending while ensuring that the circuit board is an integral whole, thereby ensuring normal operation of multiple circuit functions and improving the reliability of circuit design; the flexible connecting piece can realize bending of the control device, thereby improving the compactness of the power steering system controller during assembly; the multiple circuits are arranged in different layers of the signal processing device according to different functions, realizing modular design of the power steering system controller, thereby improving the reliability of the power steering system controller and the adaptability of the power steering system controller to different application requirements. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0039] Figure 1 The structural schematic diagram of the power steering system controller disclosed in the embodiments of the present application is shown in the figure.

[0040] Figure 2 The side view of the power steering system controller disclosed in the embodiments of the present application is shown in the figure.

[0041] Figure 3 The structural schematic diagram of the control device disclosed in the embodiments of the present application is shown in the figure.

[0042] Figure 4 The connection structure schematic diagram of the connector and the signal processing device disclosed in the embodiments of the present application is shown in the figure.

[0043] Figure 5 The layered structure schematic diagram of the flexible structure disclosed in the embodiments of the present application is shown in the figure.

[0044] Figure 6 The combination structure schematic diagram of the flexible structure disclosed in the embodiments of the present application is shown in the figure.

[0045] Figure 7 The folding mode schematic diagram of the flexible structure disclosed in the embodiments of the present application is shown in the figure.

[0046] Figure 8 The flowchart of the control method of the power steering system disclosed in the embodiments of the present application is shown in the figure.

[0047] Figure 9 The structural schematic diagram of the control device of the power steering system disclosed in the embodiments of the present application is shown in the figure.

[0048] In the figure, the reference signs correspond to: 100 - driving device; first power terminal 110; 200 - control device; 210 - connector; 211 - first connector interface; 212 - second connector interface; 213 - third connector interface; 214 - fourth connector interface; 215 - fifth connector interface; 216 - sixth connector interface; 220 - signal processing device; 221 - first reinforcing layer; 222 - intermediate layer; 223 - second reinforcing layer; 224 - connection port; 225 - second power terminal; 230 - flexible structure; 231 - flexible connecting piece; 232 - screw; 240 - heat dissipation support; 300 - driving device shell; 400 - control device shell; waterproof air valve 410. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present specification will be described clearly and completely below in combination with the drawings in the embodiments of the present specification. Obviously, the described embodiments are only part of the embodiments of the present specification, rather than all the embodiments. Based on the embodiments in the present specification, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0050] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or server including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0051] Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the drawings represent functionally identical or similar elements. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0052] The word "exemplary" is used herein in the sense of being an example, instance, or illustration. Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0053] The term "and / or", used in the present document, only describes an association relationship of associated objects, which means that there can be three relationships, for example, A and / or B can represent three cases of A existing alone, A and B existing together, and B existing alone. In addition, the term "at least one" in the present document means any one of a plurality of combinations or any combination of at least two of a plurality of combinations, for example, including at least one of A, B and C can mean including any one or more elements selected from the set consisting of A, B and C.

[0054] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the specific embodiments below. Those skilled in the art should understand that the present disclosure can also be implemented without some specific details. In some examples, methods, means, elements and circuits that are well known to those skilled in the art are not described in detail, in order to highlight the main idea of the present disclosure.

[0055] Figure 1 A structural schematic diagram of a power steering system controller disclosed by an embodiment of the present application is shown, Figure 2 A side view of the power steering system controller disclosed by an embodiment of the present application, Figure 3 A structural schematic diagram of a control device disclosed by an embodiment of the present application is shown; the power steering system controller is applied to a vehicle.

[0056] Please refer to Figure 1 , Figure 2 and Figure 3 The above power steering system controller comprises:

[0057] A driving device 100 and a control device 200; the driving device 100 is used to drive the target vehicle to steer; the control device 200 is used to control the driving device 100 to operate;

[0058] Specifically, the driving device 100 can be a six-phase brushless DC permanent magnet synchronous motor or a trapezoidal wave permanent magnet synchronous motor; the driving device 100 is provided with a first power terminal 110, and the control device 200 is provided with a connection port 224. The driving device 100 and the control device 200 are physically connected through screws; the driving device 100 and the control device 200 are electrically connected through welding of the first power terminal 110 and the connection port 224; the power generated on the control device 200 is transmitted to the motor inside through the first power terminal 110, so as to control the driving device 100 to work.

[0059] The control device 200 comprises a connector 210 and a signal processing device 220; the signal processing device 220 comprises a first reinforcing layer 221, an intermediate layer 222 and a second reinforcing layer 223 arranged in sequence; the connector 210 and the signal processing device 220 form a flexible structure 230 through a flexible connecting piece 231.

[0060] Specifically, the first reinforcing layer 221 is a layer of the three-layer circuit board of the signal processing device 220, which is far away from the driving device 100; the second reinforcing layer 223 is a layer of the three-layer circuit board of the signal processing device 220, which is close to the driving device 100; and the intermediate layer 222 is a layer between the first reinforcing layer 221 and the second reinforcing layer 223.

[0061] The first reinforcing layer 221 is provided with a power filter circuit; the second reinforcing layer 223 is provided with a power conversion circuit; and the intermediate layer 222 is provided with a control circuit.

[0062] Specifically, the power conversion circuit is arranged on the layer close to the driving device, so as to facilitate signal transmission between the driving device and the power conversion circuit; and the control circuit is arranged on the intermediate layer, so as to facilitate the control circuit to transmit control signals to the power filter circuit on the upper layer and the power conversion circuit on the lower layer.

[0063] In another embodiment, the first reinforcing layer can be provided with the power filter circuit, the power conversion circuit and the control circuit; the second reinforcing layer can be provided with the power filter circuit, the power conversion circuit and the control circuit; and the intermediate layer can be provided with the power filter circuit, the power conversion circuit and the control circuit. Each layer is provided with three kinds of functional circuits, which can avoid the failure of a layer to cause the whole signal control device to be unable to work normally, thereby ensuring the reliability of the power steering system controller.

[0064] The connector 210 is used to send an initial power signal to the power filter circuit and send steering information corresponding to the initial power signal to the control circuit.

[0065] The power filter circuit is used to perform filtering processing on the initial power signal based on control information sent by the control circuit to obtain a filtered signal; and the control information is generated based on the steering information.

[0066] The power conversion circuit is used to perform power conversion processing on the filtered signal based on the control information sent by the control circuit to obtain a steering control signal, and send the steering control signal to the driving device 100.

[0067] Specifically, the signal processing device 220 is provided with a second power terminal 225; the connector 210 is welded on the first reinforcing layer 221 and connected with the input end of the power filter circuit arranged on the first reinforcing layer 221; the output end of the power filter circuit is connected with the input end of the power conversion circuit, and the output end of the power conversion circuit is connected with the driving device; the second power terminal 225 is welded with the first reinforcing layer 221, and the second power terminal 225 is press-fitted with the second reinforcing layer 223 to realize the connection of the first reinforcing layer 221 and the second reinforcing layer 223, so as to realize the communication in the signal processing device.

[0068] In the embodiment of the application, the power supply of the vehicle is transmitted to the first reinforcing layer 221 through the connector 210, transmitted to the second reinforcing layer 223 through the second power terminal 225 after being processed by the power filter circuit, and transmitted to the driving device 100 through the motor connection terminal 250 on the second reinforcing layer 223 and the first power terminal 110 welded with the motor connection terminal 250 after being processed by the power conversion circuit.

[0069] In the embodiment of the application, the control device is provided with a single flexible circuit board, which can avoid deformation of the circuit board due to bending while ensuring that the circuit board is an integral whole, thereby ensuring normal operation of multiple circuit functions and improving the reliability of circuit design; the flexible connecting piece can realize bending of the control device, thereby improving the compactness of the power-assisted steering system controller during assembly; the multiple circuits are arranged in different layers of the signal processing device according to different functions, thereby realizing modular design of the power-assisted steering system controller and improving the reliability of the power-assisted steering system controller and the adaptability of the power-assisted steering system controller to different application requirements.

[0070] The power filter circuit includes a first power filter circuit and a second power filter circuit; the power conversion circuit includes a first power conversion circuit and a second power conversion circuit; the control circuit includes a first control circuit and a second control circuit;

[0071] In the embodiment of the application, the circuit boards in each layer of the signal processing device are provided with multiple circuits, and the circuits arranged on each layer of the circuit board correspond to different functions, and each layer of the circuit board is provided with circuits of the same function. Specifically, each layer of the circuit board can be provided with two circuits of the same function.

[0072] In a specific embodiment, the number of circuits on each layer of the circuit board can be set according to the actual application of the power-assisted steering system controller. For example, the power filter circuit can further include a third power filter circuit and a fourth power filter circuit; the power conversion circuit can further include a third power conversion circuit and a fourth power conversion circuit; and the control circuit can further include a third control circuit and a fourth control circuit.

[0073] The first power supply filter circuit, the first power variable circuit and the first control circuit form a first signal processing circuit; the second power supply filter circuit, the second power variable circuit and the second control circuit form a second signal processing circuit.

[0074] In another embodiment, the third power supply filter circuit, the third power variable circuit and the third control circuit form a third signal processing circuit; the fourth power supply filter circuit, the fourth power variable circuit and the fourth control circuit form a fourth signal processing circuit.

[0075] The first signal processing circuit is used to check the steering control signal output by the second signal processing circuit; or the first signal processing circuit is used to generate the steering control signal based on the initial power supply signal and the steering information when the second signal processing circuit fails.

[0076] In the embodiment of the application, the functions of the first signal processing circuit and the second signal processing circuit are consistent, and both are used to process signals and control the driving device 100 to generate torque and rotational speed based on the steering demand of the target vehicle; each signal processing circuit can control the three-phase independent or simultaneous operation of the driving device 100. Specifically, under the normal working condition of the power-assisted steering system controller, the first signal processing circuit and the second signal processing circuit work simultaneously; when one of the first signal processing circuit and the second signal processing circuit fails, the other normally operating signal processing circuit independently controls the driving device 100 to work to control the steering of the target vehicle.

[0077] In another embodiment, when one of the plurality of signal processing circuits fails, the other signal processing circuits in an idle state are preferentially selected to replace the failed circuit; if all the other signal processing circuits are in a working state, the signal processing circuit that ends the work first is selected to replace the failed circuit; if all the other signal processing circuits are in an idle state, a signal processing circuit is randomly selected to replace the failed circuit.

[0078] Specifically, the signal processing device can be provided with a signal processing circuit 1, a signal processing circuit 2, a signal processing circuit 3 and a signal processing circuit 4, wherein the signal processing circuit 1 is a failed circuit, the signal processing circuit 2 normally works; the signal processing circuit 3 normally works, and the signal processing circuit 4 is in an idle state, the signal processing circuit 4 is selected to replace the signal processing circuit 1; the signal processing circuit 3 and the signal processing circuit 4 both normally work, and the signal processing circuit 3 completes the work first, the signal processing circuit 3 is selected to replace the signal processing circuit 1; the signal processing circuit 3 and the signal processing circuit 4 are both in an idle state, and the signal processing circuit 3 or the signal processing circuit 4 is randomly selected to replace the signal processing circuit 1.

[0079] In another embodiment, the signal processing device 220 is further provided with a circuit function detection module, which is configured to detect the operation states of the plurality of circuits arranged in the signal processing device 220, so as to determine whether the functions of the circuits are normal in real time, thereby ensuring the application reliability of the power steering system controller.

[0080] In the embodiments of the present application, the plurality of circuits are arranged according to different functions, which can effectively reduce the coupling of the high-power circuits and the control circuits, and achieve excellent electromagnetic compatibility; in addition, the plurality of circuits with the same function are arranged on the same circuit board, and when any circuit fails, the other circuits can ensure the signal processing device to continue to work, thereby improving the reliability and safety of the power steering system controller.

[0081] As shown in Figure 4 the connector 210 includes a first connector interface 211 corresponding to the first power filter circuit, and a second connector interface 212 corresponding to the second power filter circuit;

[0082] the connector 210 further includes a third connector interface 213 corresponding to the first control circuit, and a fourth connector interface 214 corresponding to the second control circuit;

[0083] In the embodiments of the present application, the connector 210 is used to transmit the power and control signals between the power steering system controller and the vehicle. Specifically, the first connector interface 211 and the second connector interface 212 are used to connect the power connector to receive the power signals from the vehicle; the third connector interface 213 and the fourth connector interface 214 are used to connect the signal connector to realize the signal interaction between the vehicle and the power steering system controller.

[0084] In another specific embodiment, the connector 210 further includes a fifth connector interface 215 and a sixth connector interface 216, which are used to connect the sensor connector to receive the angle and speed signals transmitted from the steering wheel of the vehicle.

[0085] The first connector interface 211 and the third connector interface 213 form a first connector; and the second connector interface 212 and the fourth connector interface 214 form a second connector.

[0086] In another specific embodiment, the first connector further includes the fifth connector interface 215, and the second connector further includes the sixth connector interface 215. The first connector is connected with the first signal processing circuit, and the second connector is connected with the second signal processing circuit.

[0087] In the embodiment of the present application, the power-assisted steering system controller adopts a modular design, the connector is provided with a plurality of connector interfaces, and different application requirements of the vehicle can be met by updating the simple connector model, thereby improving the convenience of use of the power-assisted steering system controller and the universality of the application scenarios.

[0088] The power conversion circuit is provided with a connection port 224;

[0089] The power conversion circuit is connected with the driving device 100 through the connection port 224.

[0090] Specifically, the connection port 224 can be a motor connection terminal. The power supply signal emitted by the vehicle is processed by the circuit filter circuit to obtain a filtered circuit, and then processed by the power inverter circuit on the second reinforcing layer to obtain a steering control signal, which is transmitted to the driving device 100 through the connection port 224 on the second reinforcing layer and the first power terminal 110 welded thereto.

[0091] In the embodiment of the present application, the power conversion circuit is connected with the driving device, and the steering control signal can be directly transmitted to the driving device, thereby improving the convenience and reliability of the transmission of the steering control signal.

[0092] Figure 5 A schematic diagram of the layered structure of the flexible structure disclosed in the embodiment of the present application is shown, which comprises, from top to bottom, a first reinforcing layer 221, an intermediate layer 222 and a second reinforcing layer 223; Figure 6 A schematic diagram of the combined structure of the flexible structure disclosed in the embodiment of the present application is shown, the first reinforcing layer 221, the intermediate layer 222 and the second reinforcing layer 223 are overlapped and arranged, and form a flexible structure 230 through a flexible connecting piece 231; Figure 7 A schematic diagram of the folded form of the flexible structure disclosed in the embodiment of the present application is shown.

[0093] As shown in Figure 5 , Figure 6 and Figure 7 , the flexible connecting piece 231 can be bent to realize the folded arrangement of the flexible structure 230 inside the control device 200.

[0094] Specifically, the connector 210 and the signal processing device 220 are connected to form a flexible structure 230 through the flexible connecting piece 231, and the flexible structure 230 can be bent along the flexible connecting piece 231 to realize the parallel arrangement of the connector 210 and the signal processing device 220 inside the control device 200.

[0095] In the embodiment of the present application, the connector and the signal processing device are arranged in parallel inside the control device, which can optimize the spatial size of the control device, and make the control device and the power-assisted steering system controller more compact and miniaturized.

[0096] The control device 200 is further provided with a heat dissipation support 240.

[0097] The flexible structure 230 is bent through the flexible connecting piece 231 and arranged on the heat dissipation support 240.

[0098] Specifically, the flexible structure 230 is fixedly connected with the heat dissipation support 240 through the screw 232 after being bent through the flexible connecting piece 231.

[0099] In the embodiment of the present application, the heat dissipation support is arranged to expand the contact area, so that the heat dissipation efficiency of the control device can be effectively improved.

[0100] The power steering system controller further comprises a driving device housing 300 and a control device housing 400.

[0101] The control device housing 400 is fixedly connected with the driving device housing 300.

[0102] The connection between the control device housing 400 and the driving device housing 300 is sealed by sealing glue.

[0103] In the embodiment of the present application, the connection between the driving device housing and the control device housing is sealed by sealing glue, so that the stability of the internal environment of the power steering system controller can be effectively ensured, thereby prolonging the service life of each component in the power steering system controller.

[0104] In other embodiments, a waterproof and breathable valve 410 is further arranged on the control device housing 400, which is used to realize the waterproof and breathable of the control device in the power steering system controller.

[0105] Please refer to Figure 8 The present application further discloses a control method of a power steering system, which comprises the following steps:

[0106] Step S801: receiving the steering information of the target vehicle and the initial power supply signal;

[0107] In the embodiment of the present application, the steering information represents the current driving state information of the vehicle when the vehicle issues a steering demand; specifically, the steering information can include the vehicle running state, the vehicle running speed, the steering wheel rotation angle and the rotation speed information, etc. The initial power supply signal represents the power supply signal transmitted to the power steering system controller when the vehicle issues a steering demand.

[0108] Step S802: generating the steering control signal corresponding to the target vehicle based on the initial power supply signal, the steering information and the power steering system controller.

[0109] Step S803: based on the steering control signal, control the target vehicle to realize steering.

[0110] In the embodiment of the present application, the working principle of the power-assisted steering system controller is as follows: the connector 210 receives the vehicle steering information and the initial power signal, transmits the vehicle steering information to the control circuit arranged on the intermediate layer 222 of the signal processing device 220, and transmits the initial power signal to the power filter circuit arranged on the first reinforcing layer 221 of the signal processing device 220; the control circuit generates the power filter signal and the power inversion signal based on the vehicle steering information, and sends the power filter signal to the power filter circuit and the power inversion signal to the power inversion circuit arranged on the second reinforcing layer 223 of the signal processing device 220; the power filter circuit performs power filtering processing on the initial power signal based on the power filter signal to obtain a filtered signal, and sends the filtered signal to the power inversion circuit; the power inversion circuit performs power inversion processing on the filtered signal based on the power inversion signal, and generates a steering control signal in combination with the vehicle steering information, and sends the steering control signal to the driving device 100 through the connection port 224; the steering control signals on the first signal processing circuit and the second signal processing circuit control the three-phase operation of the driving device 100 respectively to realize accurate steering of the vehicle.

[0111] In the embodiment of the present application, according to the specific steering requirement of the vehicle, the corresponding steering control signal is generated based on the analysis and processing of the signal processing circuit, which can improve the accuracy of vehicle steering; the first signal processing circuit and the second signal processing circuit are arranged to ensure the operation of the power-assisted steering system controller, thereby improving the reliability of the power-assisted steering system controller.

[0112] The embodiment of the present application also provides a control device of a power-assisted steering system, as shown in the figure, the device comprises: Figure 9

[0113] The signal receiving module 910 is used for receiving the steering information and the initial power signal of the target vehicle.

[0114] The signal generating module 920 is used for generating the corresponding steering control signal of the target vehicle based on the initial power signal, the steering information and the power-assisted steering system controller.

[0115] The steering control module 930 is used for controlling the target vehicle to realize steering based on the steering control signal.

[0116] The device in the device embodiment and the method embodiment are based on the same inventive concept, and are used to realize the control method of the power-assisted steering system.

[0117] ​The embodiment of the present application also provides a vehicle provided with the power steering system controller and capable of implementing the power steering system control method.

[0118] The embodiment of the present application also provides a control device of a power steering system, which comprises a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the control method of the power steering system according to any one of the method embodiments.

[0119] The embodiment of the present application also provides a storage medium, which can be arranged in a server to store at least one instruction, at least one program, a code set or an instruction set for implementing the control method of the power steering system according to any one of the method embodiments, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the control method of the power steering system.

[0120] Optionally, in the embodiment of the present application, the storage medium can be located in at least one of a plurality of network servers of a computer network. Optionally, in the embodiment of the present application, the storage medium can include but is not limited to a U disk, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk and various storage program codes.

[0121] As can be seen from the above embodiments of the present application, in the present application, the control device is provided with a single flexible circuit board, which can avoid deformation of the circuit board due to bending while ensuring that the circuit board is an integral whole, thereby ensuring normal operation of the multiple circuit functions and improving the reliability of the circuit design; the flexible connecting piece can realize bending of the control device, thereby improving the compactness of the power steering system controller during assembly; the multiple circuits are arranged in different layers of the signal processing device according to different functions, which realizes modular design of the power steering system controller, thereby improving the reliability of the power steering system controller and the adaptability of the power steering system controller to different application requirements.

[0122] It is to be understood that the embodiments of the present disclosure which have been described are merely illustrative of the principles of the present disclosure and numerous modifications and variations could be made by those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used in this document is intended to be interpreted in the ordinary sense, and is not intended to be limiting.

Claims

1. A power steering system controller characterized by comprising: The utility model relates to a driving device (100) and control device (200), the driving device (100) is used for driving target vehicle steering, the control device (200) is used for controlling the driving device (100) operation, the control device (200) includes connector (210) and signal processing device (220), the signal processing device (220) includes the first reinforcing layer (221) of overlap arrangement, intermediate layer (222) and second reinforcing layer (223) in turn, the connector (210), the signal processing device (220) form flexible structure (230) through flexible connecting piece (231), the first reinforcing layer (221) is provided with power filter circuit, the second reinforcing layer (223) is provided with power conversion circuit, the intermediate layer (222) is provided with control circuit, the connector (210) is used to send initial power signal to the power filter circuit and sends steering information corresponding with initial power signal to control circuit, the power filter circuit is used to filter processing initial power signal based on the control information sent by control circuit, obtains the filtered signal, the control information is generated based on steering information, the power conversion circuit is used to carry out power conversion processing to the filtered signal based on the control information sent by control circuit, obtains steering control signal, sends steering control signal to the driving device (100), the power filter circuit includes first power filter circuit and second power filter circuit, the power conversion circuit includes first power conversion circuit and second power conversion circuit, the control circuit includes first control circuit and second control circuit, the first power filter circuit, first power conversion circuit and first control circuit form first signal processing circuit, second power filter circuit, second power conversion circuit and second control circuit form second signal processing circuit, the first signal processing circuit is used to the steering control signal of second signal processing circuit output is verified, or, the first signal processing circuit is used to generate steering control signal based on initial power signal and steering information when second signal processing circuit fails, the connector (210) includes the first connector interface (211) corresponding with first power filter circuit and the second connector interface (212) corresponding with second power filter circuit, the connector (210) still includes the third connector interface (213) corresponding with first control circuit and the fourth connector interface (214) corresponding with second control circuit, the first connector interface (211) and the third connector interface (213) form first connector, and the second connector interface (212) and the fourth connector interface (214) form second connector, the power conversion circuit is provided with connecting port (224). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. A power steering system controller according to claim 1, wherein ​ ​ ​ 3. A power steering system controller according to claim 1, wherein ​ The power variable circuit is connected with the driving device (100) through the connecting port (224).

4. A power steering system controller according to claim 1, wherein The flexible connecting piece (231) can be bent to realize the folding arrangement of the flexible structure (230) inside the control device (200).

5. A power steering system controller according to claim 4, wherein The control device (200) is further provided with a heat dissipation support (240). The flexible structure (230) is bent through the flexible connecting piece (231) and arranged on the heat dissipation support (240).

6. A power steering system controller according to claim 1, wherein The power steering system controller further comprises a driving device shell (300) and a control device shell (400). The control device shell (400) is fixedly connected with the driving device shell (300). The connection between the control device shell (400) and the driving device shell (300) is sealed by sealing glue.

7. A control method of a power steering system characterized by comprising: The method is realized based on the power steering system controller of any one of claims 1-6, and the method comprises: receiving the steering information of the target vehicle and the initial power supply signal; generating the corresponding steering control signal of the target vehicle based on the initial power supply signal, the steering information and the power steering system controller; controlling the target vehicle to realize steering based on the steering control signal.

8. A control device for a power steering system, characterized by comprising: The device is used to execute the method of claim 7, and the device comprises: a signal receiving module for receiving the steering information of the target vehicle and the initial power supply signal; a signal generating module for generating the corresponding steering control signal of the target vehicle based on the initial power supply signal, the steering information and the power steering system controller; a steering control module for controlling the target vehicle to realize steering based on the steering control signal.

9. A vehicle characterized by comprising: The vehicle is provided with the power steering system controller of any one of claims 1-6 and can realize the power steering system control method of claim 7.

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