Integrated servo steering wheel damping system

Abstract

The utility model discloses an integrated servo steering wheel damping system which comprises a steering wheel body. The steering wheel body is electrically connected with an encoder, and the lower portion of the steering wheel body is connected with an integrated servo steering wheel damper. A steering wheel body; the direction wheel motor is connected with the direction wheel main body through gear transmission; the direction wheel position sensor is arranged on the direction wheel motor; and a vehicle controller. The integrated servo steering wheel damper is controlled by the servo motor, the sum of the damping torque can be accurately controlled through the CAN bus, the precision can reach 0.1%, and the integrated servo steering wheel damper is small in size, can be conveniently integrated below a steering wheel and is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle steering wheels, and particularly relates to an integrated servo steering wheel damping system. Background Art

[0002] The existing steering of the steering wheel combines mechanical linkages with an electric power steering system. Relying on mechanical rails to directly feedback the steering feel and force will result in the loss of some road feel and the feedback is not intuitive. At the same time, with the progress of autonomous driving technology, if you want to implement an unmanned driving mode on the current steering wheel technology in the future, a steering wheel motor needs to be added at the mechanical rail of the steering wheel, and the structure is relatively complex. Content of the Utility Model

[0003] The purpose of the utility model is to provide an integrated servo steering wheel damping system to solve the above problems.

[0004] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0005] An integrated servo steering wheel damping system, comprising:

[0006] A steering wheel main body;

[0007] An encoder is electrically connected to the steering wheel main body, and an integrated servo steering wheel damper is connected below the steering wheel main body;

[0008] A road wheel main body;

[0009] A road wheel motor is connected to the road wheel main body through gear transmission;

[0010] A road wheel position sensor is arranged on the road wheel motor; and

[0011] A vehicle controller.

[0012] As a further description of the above technical solution, the vehicle controller is electrically connected to the encoder, the integrated servo steering wheel damper, the road wheel motor, and the road wheel position sensor.

[0013] As a further description of the above technical solution, the encoder is electrically connected to the road wheel position sensor.

[0014] As a further description of the above technical solution, the size of the integrated servo steering wheel damper is 60mm * 60mm * 108mm.

[0015] As a further description of the above technical solution, the road wheel position sensor transmits a 0-4.5V analog signal to the vehicle controller.

[0016] As a further description of the above technical solution, the vehicle controller is electrically connected to the integrated servo steering wheel damper through the CAN bus.

[0017] As a further description of the above technical solution, the control accuracy of the integrated servo steering wheel damper is 0.1%.

[0018] As a further description of the above technical solution, the protection level of the integrated servo steering wheel damper is IP67.

[0019] The beneficial effects of the present utility model are as follows:

[0020] 1. In the present utility model, during the process of manual steering operation, since the encoder is electrically connected to the steering wheel position sensor, the rotation of the steering wheel changes the signal of the encoder. The encoder transmits the signal to the vehicle controller, and the vehicle controller feeds back the received signal to the steering wheel motor. The steering wheel main body is deflected by driving the steering wheel motor, thereby realizing steering. By this setting, the mechanical railing can be cancelled, making the overall structure simpler.

[0021] 2. In the present utility model, in the driverless mode, a control instruction can be directly transmitted to the vehicle controller through a preset control program. After receiving the instruction signal, the vehicle controller transmits the signal to the steering wheel motor, so as to realize that there is no need to additionally install a steering wheel motor under the steering wheel main body, reducing the disassembly and assembly steps, making the operation more convenient and more suitable for driverless driving.

[0022] To more clearly illustrate the structural features and functions of the present utility model, the present utility model will be described in detail below with reference to the attached drawings and specific embodiments. Description of the Drawings

[0023] Figure 1 is the front view of the connection between the steering wheel main body and the damper in the present utility model;

[0024] Figure 2 is the perspective view of the connection between the steering wheel main body and the damper in the present utility model;

[0025] Figure 3 is the schematic diagram of the connection between the steering wheel, the position sensor and the steering wheel motor in the present utility model;

[0026] Figure 4 is the schematic diagram of the whole vehicle in the present utility model.

[0027] Reference Signs: 1. Steering wheel main body; 2. Encoder; 3. Integrated servo steering wheel damper; 4. Steering wheel main body; 5. Steering wheel motor; 6. Steering wheel position sensor. Detailed Embodiments

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0029] As Figures 1 - 4 shown, in one embodiment, an integrated servo steering wheel damping system includes a steering wheel main body 1, an encoder 2 is connected below the steering wheel main body 1, and at the same time, an integrated servo steering wheel damper 3 is also connected below the steering wheel main body 1;

[0030] Below the other end of the vehicle body, a road wheel main body 4 is connected. The vehicle can directly change its direction through the road wheel main body 4. A road wheel motor 5 is provided on the road wheel main body 4. The road wheel motor 5 can drive the road wheel main body 4 to change its angle to change the traveling direction of the vehicle.

[0031] It also includes a vehicle controller, i.e., VCU. The vehicle controller is connected to the encoder 2, the road wheel motor 5, the integrated servo steering wheel damper 3, and a road wheel position sensor 6 provided on the road wheel.

[0032] During use, the signal of the road wheel position sensor 6 is input into the vehicle controller. After receiving the 0 - 4.5V analog signal returned by the road wheel position sensor 6, the vehicle controller determines the current steering angle. The vehicle controller controls the integrated servo steering wheel damper 3 to generate a corresponding damping torque through the CAN bus according to the value of the steering angle, thereby feeding back the actual resistance of the road wheel motor to the operator. Although there is no mechanical railing, through the above operations, the operator can still perceive the actual resistance, which is convenient for operating and turning the direction. The rotation angle of the road wheel motor 5 can be limited within a certain range by the road wheel position sensor 6, avoiding the problem of damage caused by excessive deflection angle of the road wheel motor 5.

[0033] Furthermore, during the process of manual steering operation, since the encoder 2 is electrically connected to the road wheel position sensor 6, when the steering wheel rotates, the signal of the encoder 2 changes. The encoder 2 transmits the signal to the vehicle controller, and the vehicle controller feeds back the received signal to the road wheel motor 5. The road wheel motor 5 drives the road wheel main body 4 to deflect, thereby realizing steering. Through this setting, the mechanical railing can be cancelled, making the overall structure simpler.

[0034] In the driverless mode, a control instruction can be directly sent to the vehicle controller through a preset control program. After receiving the instruction signal, the vehicle controller transmits the signal to the road wheel motor 5, so as to achieve no need to additionally install a steering wheel motor below the steering wheel main body 1, reducing the disassembly and assembly steps and making the operation more convenient.

[0035] Further, the size of the integrated servo steering wheel damper 3 is 60mm * 60mm * 108mm, which is very small and can be easily integrated under the steering wheel.

[0036] Further, the control accuracy of the integrated servo steering wheel damper 3 is 0.1%, which can accurately control the torque and make the feedback of the steering wheel more accurate.

[0037] Further, the integrated servo steering wheel damper 3 belongs to the 2% intermittent duty system, has a small load, and an IP67 protection level, which can meet outdoor working scenarios.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated servo steering wheel damping system, characterized in that, Including: Steering wheel body; An encoder is electrically connected to the steering wheel body, and an integrated servo steering wheel damper is connected below the steering wheel body; Steering wheel main body; The steering wheel motor is connected to the steering wheel main body through gear transmission; Steering wheel position sensor, arranged on the steering wheel motor; and Vehicle controller.

2. The integrated servo steering wheel damping system according to claim 1, wherein, The vehicle controller is electrically connected to the encoder, the integrated servo steering wheel damper, the steering wheel motor and the steering wheel position sensor.

3. The integrated servo steering wheel damping system according to claim 1, wherein, The encoder is electrically connected to the steering wheel position sensor.

4. The integrated servo steering wheel damping system according to claim 1, characterized in that, The size of the integrated servo steering wheel damper is 60mm*60mm*108mm.

5. The integrated servo steering wheel damping system according to claim 1, wherein The steering wheel position sensor transmits a 0-4.5V analog signal to the vehicle controller.

6. The integrated servo steering wheel damping system according to claim 1, characterized in that The vehicle controller is electrically connected to the integrated servo steering wheel damper through the CAN bus.

7. The integrated servo steering wheel damping system according to claim 1, characterized in that, The control accuracy of the integrated servo steering wheel damper is 0.1%.

8. The integrated servo steering wheel damping system according to claim 1, wherein The protection level of the integrated servo steering wheel damper is IP67 level.

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