Motor controller of moment road sense feedback device

Abstract

The utility model discloses a motor controller of a torque road sense feedback device. The motor controller comprises a base, a plugging connecting piece, an inductor, a power bridge connecting piece and a circuit board, the plug connector is provided with a power interface, a communication interface and a corner sensor interface, a first metal pin of the plug connector is connected with a through hole in the circuit board assembly, the power bridge connector is provided with a second metal pin and a first metal plate, the inductor is connected with the first metal plate, and the second metal pin is connected with the through hole in the circuit board assembly. A sensor chip circuit and a phase line connecting piece are arranged on the circuit board, the phase line connecting piece comprises a second metal plate and a third metal pin, the third metal pin is connected with a through hole in the circuit board assembly, the second metal plate is connected with a motor phase line, and control current of the circuit board is connected to the motor phase line. According to the torque road feel feedback device, the controller and the driving motor of the torque feedback device are designed in a split mode, the controller part can be independently assembled, the assembling technology is simplified, and installation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of wire-controlled steering, in particular to a motor controller of a torque road sense feedback device. Background Art

[0002] With the development of automobile intelligence and autonomous driving functions, the wire-controlled steering system is increasingly widely used in the field of automobile steering. The wire-controlled steering system includes a steering column, a torque feedback device and a steering actuator. The controller of the torque feedback device receives the steering wheel angle signal and the vehicle signal. The controller controls the rotation of the motor through a software algorithm and feeds back the torque to the steering wheel through a reduction mechanism, thereby simulating the torque road feel of the steering system.

[0003] The torque feedback device is a new design. Some torque feedback devices are driven by a single motor, and the single reduction mechanism is a belt drive or a single worm gear drive. The design of the reducer and controller has problems such as low safety redundancy, large space occupation, and inconvenience for vehicle layout. Therefore, a torque feedback device controller with high safety redundancy and compact structure has a broad market application scenario. Utility Model Content

[0004] In view of the deficiencies existing in the above problems, the utility model provides a motor controller of a torque road sense feedback device.

[0005] To achieve the above-mentioned purpose, the utility model provides a motor controller of a torque road sense feedback device, comprising a base and a plug connector, an inductor, a power bridge connector and a circuit board assembly arranged on the base;

[0006] Among them, the plug-in connector is provided with a power interface, a vehicle communication interface and a steering wheel angle sensor interface, the first metal pin of the plug-in connector is connected to the through hole on the circuit board assembly, the power bridge connector is provided with a second metal pin and a first metal plate, the metal wire of the inductor is connected to the first metal plate, the second metal pin is connected to the through hole on the circuit board assembly, the circuit board assembly is provided with a motor position sensor chip circuit and a phase line connector, the phase line connector includes a second metal plate and a third metal pin, the third metal pin is connected to the through hole on the circuit board assembly, the second metal plate is connected to the motor phase line and the control current of the circuit board assembly is connected to the motor phase line.

[0007] Preferably, the motor position sensor chip circuit corresponds to the position of the motor position sensor magnetic ring.

[0008] Preferably, the power current is transmitted to the circuit board assembly through the metal terminal in the power interface of the plug connector, and the power current is transmitted to the motor drive circuit of the circuit board assembly through the first metal pin and the inductor.

[0009] Preferably, the power bridge connector is located below the circuit board assembly.

[0010] Preferably, the circuit board assembly is provided with two complete and independent control drive circuits, which respectively receive input power and signals and control the operation of a motor.

[0011] Preferably, it further comprises a cover, the cover is provided with a buckle, and the cover is arranged on the base through the buckle.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The controller of the torque road sense feedback device and the driving motor of the torque feedback device of the utility model adopt a split design, and the controller part can be assembled independently, which simplifies the assembly process and is easy to install.

[0014] The controller circuit board assembly of the torque road sense feedback device of the utility model is provided with two sets of complete and independent control drive circuits, which respectively receive input power and signals and respectively control a set of motor operations, thereby improving safety redundancy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the exploded structure of the motor controller of the torque road sense feedback device of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the plug-in connector in the motor controller of the torque road sense feedback device of the utility model;

[0017] Figure 3 It is a structural schematic diagram of another perspective of the plug-in connector in the motor controller of the torque road sense feedback device of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the power bridge connector in the motor controller of the torque road sense feedback device of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of a circuit board assembly in a motor controller of a torque road sense feedback device of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the phase line connector in the motor controller of the torque road sense feedback device of the utility model;

[0021] Figure 7It is a structural schematic diagram of a motor controller of the torque road sense feedback device of the utility model;

[0022] Figure 8 The utility model is a schematic diagram of the structure of the torque road sense feedback device of the wire control steering system. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The following is combined with Figure 1-8 The utility model is further described in detail:

[0027] like Figure 1 As shown, the utility model provides a motor controller of a torque road sense feedback device, comprising a base 6 and a plug connector 5, an inductor 7, a power bridge connector 8 and a circuit board assembly 9 arranged on the base 6;

[0028] Reference Figure 2The connector 5 is provided with a power interface 5-1, a vehicle communication interface 5-2, and a steering wheel angle sensor interface 5-3. The connector 5 is fastened to the controller base 6 by screws 4. The first metal pin 5-4 of the interface of the connector 5 passes through the opening on the controller base 6 and is connected to the through hole on the circuit board assembly 9 to realize circuit connection.

[0029] Reference Figure 3 The power bridge connector 8 is provided with second metal pins 8-1, 8-3 and a first metal plate 8-2, and the metal wire 7-1 of the inductor 7 passes through the power bridge connector 8 and is connected to the first metal plate 8-2. The second metal pins 8-1, 8-3 of the power bridge connector 8 are connected to the through holes on the circuit board assembly 9 to achieve circuit connection. The power bridge connector 8 is fastened to the controller base 6 by screws 4.

[0030] Reference Figure 4-5 , a through hole is provided on the circuit board assembly 9, and a phase line connector 9-1 is provided with a second metal plate 9-1-1 and a third metal pin 9-1-2. The third metal pin 9-1-2 is connected to the through hole on the circuit board assembly 9, and the second metal plate 9-1-1 is connected to the motor phase line of the torque feedback device driving part 2-1, and the control current of the circuit board assembly 9 is connected to the motor phase line 2-3. The circuit board assembly 9 is fastened to the controller base 6 by screws 4. A motor position sensor chip circuit 9-2 is provided on the circuit board assembly 9, which corresponds to the position of the motor position sensor magnetic ring 2-4 provided on the torque feedback device driving part 2-1. When the motor rotates, the motor rotor shaft drives the magnetic ring of the magnetic seat to rotate synchronously. The motor position sensor chip circuit provided on the circuit board assembly 9 confirms the position of the motor rotor by sensing the change of the magnetic field of the magnetic ring.

[0031] In this embodiment, after being connected to the vehicle power supply, vehicle signal, and steering wheel angle signal, the vehicle communication interface 5-2 and the steering wheel angle sensor interface 5-3 of the connector 5 transmit the vehicle signal and the steering wheel angle signal to the circuit board through their metal pins. The power current is transmitted to the circuit board assembly 9 through the metal terminal in the power interface 5-1 of the connector 5, and then transmitted to the motor drive circuit part of the circuit board assembly 9 through the metal pins 8-1, 8-3 and the inductor 7 of the power bridge connector 8. The power current bypasses the weak current control circuit part on the circuit board assembly 9 and directly reaches the motor drive circuit. The control circuit part of the circuit board assembly 9 does not need to pass a large current, which reduces the electromagnetic interference of the large current on the weak current control circuit, simplifies the design of the circuit board assembly 9, and reduces the size of the circuit board assembly 9. The power bridge connector 8 is arranged below the circuit board assembly 9, saving the radial space of the controller 2-2, making the structure of the torque feedback device 2 more compact. The circuit board assembly 9 is provided with two complete and independent control drive circuits, which receive input power and signals respectively and control a set of motors to run. When one system fails, the other can still run normally and provide torque road feedback. The two-way controller system of the controller improves the safety redundancy of the system.

[0032] Reference Figure 6 The present application also includes a cover 10, on which a buckle 10-1 is provided, and the cover 10 is mounted on the controller base 6 through the buckle 10-1. The connection method between the cover 10 and the controller base 6 is not limited to buckle connection, screw fastening, gluing, etc.

[0033] Reference Figure 7 The steering wheel is connected to the torque feedback device 2 through the steering column 1, and the torque feedback device controller 2-2 and the torque feedback device driving part 2-1 are connected through bolts 3.

[0034] The assembly process of the device includes:

[0035] The connector 5 is fastened to the controller base 6 by means of screws 4 , and the metal pins of the connector 5 pass through the openings of the controller base 6 .

[0036] The metal wire 7-1 of the inductor 7 passes through the power bridge connector 8 and the metal plate 8-2 to connect, and the connection is not limited to welding, crimping, etc. The power bridge connector is fastened to the controller base 6 by screws 4. Figure 6 ,

[0037] The metal pin 9-1-2 of the phase line connector 9-1 is connected to the through hole of the circuit board assembly 9, and the connection is not limited to welding, adaptable pin connection and the like.

[0038] The metal pins 5-4 of the connector 5 and the metal pins 8-1 and 8-3 of the power bridge connector 8 are connected to the through holes on the circuit board assembly 9, and the connection is not limited to welding, adaptable pin connection, etc. The circuit board assembly 9 is fastened to the controller base 6 by screws 4.

[0039] The controller base 6 is installed on the torque feedback device driving part 2-1. The torque feedback device driving part 2-1 is provided with a threaded through hole and a boss 2-5. The controller base 6 is fastened to the torque feedback device driving part 2-1 by screws 3 and the boss 2-5.

[0040] The motor position sensor magnetic ring 2 - 4 passes through the opening 6 - 3 of the controller base 6 and is aligned with the motor position sensor chip circuit 9 - 2 of the circuit board assembly 9 .

[0041] The motor phase line 2-3 passes through the opening 6-2 of the controller base 6 and is connected to the metal plate 9-1-1 of the phase line connector 9-1, and the connection is not limited to welding, crimping and the like.

[0042] The cover 10 is provided with a buckle 10-1, and the cover 10 is mounted on the controller base 6 through the buckle 10-1. The connection method between the cover 10 and the controller base 6 is not limited to buckle connection, screw fastening, gluing, etc. The torque feedback device controller is assembled.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A motor controller for a torque road sense feedback device, characterized in that: It comprises a base and a plug connector, an inductor, a power bridge connector and a circuit board assembly arranged on the base; Among them, the plug-in connector is provided with a power interface, a vehicle communication interface and a steering wheel angle sensor interface, the first metal pin of the plug-in connector is connected to the through hole on the circuit board assembly, the power bridge connector is provided with a second metal pin and a first metal plate, the metal wire of the inductor is connected to the first metal plate, the second metal pin is connected to the through hole on the circuit board assembly, the circuit board assembly is provided with a motor position sensor chip circuit and a phase line connector, the phase line connector includes a second metal plate and a third metal pin, the third metal pin is connected to the through hole on the circuit board assembly, the second metal plate is connected to the motor phase line and the control current of the circuit board assembly is connected to the motor phase line.

2. The motor controller of the torque road sense feedback device according to claim 1, characterized in that: The motor position sensor chip circuit corresponds to the position of the motor position sensor magnetic ring.

3. The motor controller of the torque road sense feedback device according to claim 2, characterized in that: The power current is transmitted to the circuit board assembly through the metal terminal in the power interface of the plug connector, and is transmitted to the motor drive circuit of the circuit board assembly through the first metal pin and the inductor.

4. The motor controller of the torque road sense feedback device according to claim 3, characterized in that: The power bridge connector is located below the circuit board assembly.

5. The motor controller of the torque road sense feedback device according to claim 4, characterized in that: The circuit board assembly is provided with two sets of complete and independent control drive circuits, which respectively receive input power and signals and control the operation of a set of motors respectively.

6. The motor controller of the torque road sense feedback device according to claim 5, characterized in that: It also includes a cover, on which a buckle is provided, and the cover is arranged on the base through the buckle.

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